Abstract

Disclosed are a method and device for checking a nozzle of an inkjet printer. The checking method comprises: acquiring an electronic scanned image, wherein the scanned image is a paper printed image printed by the inkjet printer based on a checking image, and a mapping from a pixel point position to a nozzle number of the inkjet printer is preset in the checking image (step 11); analyzing the scanned image to obtain a pixel point position free of ink in the scanned image (step 12); and obtaining a corresponding nozzle number and outputting same according to the pixel point position free of ink (step 13). The present invention achieves automatic checking of a blocked nozzle, improves convenience of checking and reduces the error rate of checking.

IPC Classes  ?

• B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

Abstract

Provided are a raster processing method and an apparatus of a transparent form. The method comprises: determining transparent forms that are available for reuse processing in a page description file; executing syntax interpretation on the transparent forms to obtain a reuse type and position information of the transparent forms, generating a color block lattice, an Alpha block lattice, a Shape block lattice and respective corresponding block attribute tables and block memory tables for the transparent forms, and establishing an association relationship between different transparent forms in the page description file; based on the reuse type, computing generated data information, obtaining and caching assembling information of the transparent forms; when assembling the transparent forms, determining an assembling way of the transparent forms based on the reuse type and graph status of a page to be output; and assembling the transparent forms into the page to be output based on the assembling information and the association relationship in the assembling way. A raster processing efficiency in repeatedly referencing a transparent form file can be improved.

IPC Classes  ?

• G06F 17/22 - Manipulating or registering by use of codes, e.g. in sequence of text characters

Abstract

A flashing inkjet printing control method and device. The method comprises: determining whether to conduct flashing inkjet printing during a process of inkjet printing of inkjet-printed objects with a spacing therebetween, the flashing inkjet printing referring to instant inkjet printing (step 101); and when flashing inkjet printing is determined to be conducted, using nozzles, at least including those on a printhead that are not used for inkjet printing of the inkjet-printed objects, to conduct inkjet printing within the spacing between the adjacent inkjet-printed objects according to preset flashing inkjet printing parameters (step 102). The device comprises: a determining module (31) used for determining whether to conduct flashing inkjet printing during a process of inkjet printing of inkjet-printed objects with a spacing therebetween, the flashing inkjet printing referring to instant inkjet printing; and a flashing inkjet printing module used for, when flashing inkjet printing is determined to be conducted, using nozzles, at least including those on a printhead that are not used for inkjet printing of the inkjet-printed objects, to conduct inkjet printing within the spacing between the adjacent inkjet-printed objects according to preset flashing inkjet printing parameters. By adopting the method and device, the nozzles unused can effectively be kept wet to achieve the purpose of protecting the printhead.

IPC Classes  ?

• B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism

Abstract

Provided is an iOS application automatic compilation method, comprising: according to a request received from a client to construct an iOS application, at least one Web server returns to the client corresponding construction service information so as to enable the client to return input information based on the construction service information; according to the returned input information, the Web server acquires a corresponding program code and modifies the configuration information of the program code, the corresponding program code being prestored in the Web server; the Web server packages the program code according to the modified configuration information, and backs up the packaged program code; and the Web server transmits to the client the message for completing iOS application construction, and provides the client with the downloadable packaged program code. Also provided is an iOS application automatic compilation system.

IPC Classes  ?

• G06F 9/44 - Arrangements for executing specific programs

Abstract

Provided are an image printing method and a printer. The method comprises: (S101) obtaining a start data file of an image to be printed in a database; (S102) dividing the start data file into multiple first data files according to a size of the start data file, and correspondingly storing the multiple first data files into multiple first memory blocks; (S103) receiving an image printing request, the image printing request carrying first position information of the image to be printed; (S104) for each first data file in the multiple first data files, determining second position information comprised in the first position information, of the first data file in position information of the image to be printed, and filling, by means of a memory mapping mechanism, the first data file corresponding to the second position information from the first memory block where the first data file is located to a second memory block, so as to form a second data file of the image to be printed; and (S105) printing and outputting the second data file in the second memory block. The present invention effectively solves the technical problem that the printing time is long and the printing efficiency is low when an ultra-large image is printed by using an existing printing technology.

IPC Classes  ?

• G06F 3/12 - Digital output to print unit

Abstract

The present invention provides a method and a system for controlling digital printing of a secret file. The method comprises: obtaining a source file to be printed; importing the source file into a secret file library; generating a printing job for the source file, and adding the printing job into a job queue; writing printing control information of the source file into a standard file; after the printing is started, extracting page dot matrix data of the source file from the secret file library, and processing the page dot matrix data according to the printing control information; and transmitting the processed page dot matrix data to a numerical control device. The present invention can effectively control and manage a whole printing process of a secret file, so that a source file and a standard file cannot be copied in a case in which there is no professional technology.

IPC Classes  ?

• G06F 3/12 - Digital output to print unit

Abstract

Provided are an ink jetting digital printing apparatus and method supporting double-side printing. The ink jetting digital printing apparatus comprises: a first sprayer module (611) and a first color face control server group (612) corresponding thereto, a second sprayer module (621) and a second color face control server group (622) corresponding thereto, a rasterized image processing server (601), and a system control server (602). The first sprayer module (611) and the second sprayer module (621) each comprise an identical group of bicolor or multi-color sprayers; the first color face control server group (612) comprises color face control servers corresponding to the sprayers in the first sprayer module (611) one to one; the second color face control server group (622) comprises color face control servers corresponding to the sprayers in the second sprayer module (621) one to one; and the color face control servers in the first color face control server group (612) and the color face control servers in the second color face control server group (622) are distributed in parallel arrangement. The printing apparatus and method implement a multi-color double-side printing function in distributed architecture, thereby improving the speed of printing.

IPC Classes  ?

• B41J 3/60 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
• G06F 3/12 - Digital output to print unit

Abstract

The present invention relates to the technical field of printing, and disclosed are a page processing method and device for variable data printing. The method comprises: acquiring a current page of a file which needs to be printed; rasterizing the current page, so as to obtain a current page lattice; determining a reference page of the current page, and acquiring a reference page lattice corresponding to the reference page; respectively dividing the reference page lattice and the current page lattice into lattice blocks with a set granularity in accordance with a fixed length and width; according to the lattice blocks, identifying a variable data block in the current page lattice; dynamically adjusting the size of the variable data block; according to the adjusted variable data block, extracting a variable data lattice of the current page lattice relative to the reference page lattice; and breaking down the current page lattice into the reference page lattice and the variable data lattice to conduct output storage. Using the present invention can effectively save the storage space, and provide a guarantee for the organization of subsequent variable data information.

IPC Classes  ?

• G06F 17/30 - Information retrieval; Database structures therefor

Abstract

A method and an apparatus for building an intermediate font library. The method comprises: acquiring an original font library, the original font library storing profile information of characters; dividing the characters in the original font library into components, so as to acquire profile information of character components after division; and storing the profile information of the character components in the original font library to form an intermediate font library. According to the present invention, an intermediate font library is constructed to simplify an operation process of performing selection and operation simultaneously on multiple profiles of a single character during building of fonts, thereby improving the operation efficiency.

IPC Classes  ?

• G06F 17/22 - Manipulating or registering by use of codes, e.g. in sequence of text characters

Abstract

The present invention relates to the technical field of computer text entry. Disclosed are a method and an apparatus for establishing a huge character library, and a character display method and apparatus. The character display method comprises: font engine middleware intercepting a font invoking message sent by a system font engine, the font invoking message comprising a character number and a font name corresponding to a character to be displayed by an application program; acquiring, according to the character number and the font name, outline data corresponding to the character from the huge character library, the huge character library being a character library of a nonstandard format; returning the outline data of the character to the system font engine, so that the system font engine displays the character according to the character outline data. The present invention can improve a capacity of a character library, and can also easily and conveniently recognize characters in a huge character library of a nonstandard format, thereby improving character retrieval and display efficiency.

IPC Classes  ?

• G06F 3/048 - Interaction techniques based on graphical user interfaces [GUI]

Abstract

The present invention relates to a secure communication authentication method and system in a distributed environment. By using the method and the system of the present invention, disadvantages in a platform identity certification process in TCG remote certification are alleviated, a method for platform identity certification is expanded, and by combining three technologies, that are, zero-knowledge proof, a Kerberos framework and a virtual TPM, a new verification method is designed, which is mainly intended to make improvement in the aspects in the existing method such as platform information exposure, a trusted third-party bottleneck and complexity avoidance. By using the method and the system of the present invention, the problems of privacy exposure and efficiency in mutual verification between remote servers in the existing distributed system.

IPC Classes  ?

• H04L 9/32 - Arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system
• H04L 9/14 - Arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms

Abstract

Disclosed are a method and device for generating dots, which relate to the image reproduction field of the printing industry. The method comprises: performing binarization processing on a threshold matrix of one or more basic dots according to a hierarchy threshold, so as to obtain a hierarchy binarization matrix set corresponding to the threshold matrix; determining substitution binarization matrices and auxiliary binarization matrices from the hierarchy binarization matrix set; performing Boolean calculation on the substitution binarization matrices and the auxiliary binarization matrices, so as to generate outcome binarization matrices; substituting the outcome binarization matrices with corresponding substitution binarization matrices one by one; and according to the hierarchy binarization matrix set after substitution completion, forming substituted threshold matrices, and generating dots after shape change according to the substituted threshold matrices. The shapes of dots with some grayscale in basic dots are changed by Boolean calculation among binarization matrices, thereby achieving the purposes of changing the overall shape of the basic dots and constructing dots with complicated shapes using dots with simple shapes, so that it is simple and easy to implement.

IPC Classes  ?

• G06F 17/50 - Computer-aided design

Abstract

A seamless splicing mechanism of a spray nozzle, and a method for adjusting the mechanism. The seamless splicing mechanism of a spray nozzle comprises: a microscope apparatus used for detecting coordinates of an orifice of a spray nozzle; a spray nozzle adjustment base (2) used for fixing the spray nozzle (1); and a spray nozzle bottom plate (3) adjustably connected to the spray nozzle adjustment base (2). The seamless splicing mechanism of a spray nozzle features low cost and high adjustment efficiency, thereby implementing digital adjustment.

IPC Classes  ?

• B41J 2/145 - Arrangement thereof

Abstract

Provided are a method and system for discovering and analyzing a micro-blog user group structure. The method for discovering and analyzing the micro-blog user group structure comprises: obtaining the behavior data of the micro-blog user in a target group; according to the behavior data of the micro-blog user in the target group, constructing a micro-blog user association network; obtaining at least a maximum clique from the micro-blog user association network; according to the maximal clique, obtaining at least one core clique; performing micro-blog user behavior analysis according to the obtained maximum clique and / or core clique. Using the method and system for discovering and analyzing the micro-blog user group structure provided in the invention can not only fully illustrate the complex relationship between the micro-blog users, but also improve the speed of discovering and analyzing the micro-blog user group structure, and meet the demand of large-scale data processing.

IPC Classes  ?

• G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions

Abstract

Provided are a method and system for identifying a microblog user identity. The method comprises: obtaining the behavioral data of a user to be identified and the feature database information of a user behavior; preprocessing the obtained behavioral data of the user to be identified; performing the reconstruction of semantic units for the preprocessed user behavioral data; obtaining attribute information of semantic units and the corresponding weights thereof; obtaining the behavioral feature of the user to be identified according to the attribute information of semantic units and the corresponding weights thereof; comparing the behavioral feature of the user to be identified with each feature type in the feature database information of the user behavior; and determining the identify of the user to be identified when the similarity between the behavioral feature of the user to be identified and one feature type in the feature database information of the user behavior exceeds a preset threshold. Using the provided method and system for identifying the microblog user identity, the accuracy and real-time performance of identifying the microblog user identity can be effectively improved.

IPC Classes  ?

• G06F 21/31 - User authentication

Abstract

The embodiments of the present invention relate to the technical field of printing, and in particular, to a frequency doubling processing method and device, which are used for solving the problem of poor quality of a printed image. A frequency doubling processing method provided in the embodiments of the present invention comprises: aiming at two adjacent pulse signals output by a coder, according to a time interval of the two adjacent pulse signals and a frequency doubling value corresponding to a longitudinal resolution, determining a first kind of pulse signals and a second kind of pulse signals needing to be inserted between the two adjacent pulse signals; determining the period of the first kind of pulse signals needing to be inserted according to a first pulse period corresponding to the two adjacent pulse signals, and determining the period of the second kind of pulse signals needing to be inserted according to a second pulse period corresponding to the two adjacent pulse signals; and performing frequency doubling processing on the two adjacent pulse signals according to the determined period of the first kind of pulse signals and the period of the second kind of pulse signals. The embodiments of the present invention further improve the printing quality of images.

IPC Classes  ?

• H03K 5/00 - Manipulation of pulses not covered by one of the other main groups of this subclass
• H03K 5/156 - Arrangements in which a continuous pulse train is transformed into a train having a desired pattern

Abstract

Disclosed are a data processing method, an apparatus and an ink-jet printer. The method comprises the following steps: a processor sequentially receiving multiple lines of image lattice data; after receiving one line of image lattice data is complete, splitting the one line of image lattice data to n groups of image lattice data according to the number of lines of corresponding nozzles along a paper feeding direction of the one line of image lattice data, wherein n is the number of rows of all nozzles; after splitting the one line of image lattice data, writing the corresponding split n groups of image lattice data to an internal buffer; after writing the split n groups of image lattice data corresponding to the one line of image lattice data to the internal buffer, writing the n groups of image lattice data in the corresponding internal buffer to an external storage; reading data from the external storage according to an arrangement rule of all nozzles. By cooperatively using the processor and the external storage, embodiments of the present invention reduce a processing cost of the image lattice data, and improve an image lattice processing speed.

IPC Classes  ?

• G06K 15/10 - Arrangements for producing a permanent visual presentation of the output data using printers by matrix printers
• B41J 2/01 - Ink jet

Abstract

Disclosed are a method for obtaining print processing time and an electronic device having a print function which can be connected with a printer. The method comprises: a print instruction is executed to make the printer perform a print operation on a first file while the current system time of the electronic device is recorded, referred to as time1; it is looked up in the print folder corresponding to the printer in the electronic device whether there is a second file with the extension.SPL corresponding to the first file; when the second file is found, the creation time of the second file is read, referred to as time2; it is detected in the print folder that whether the second file has been modified to a third file; when the second file is detected to have been modified to the third file, the modification time of the second file is read, referred to as time3.

IPC Classes  ?

• G06F 11/30 - Monitoring

Abstract

The present invention relates a method and a system for correcting closed loop color based on a multi-dimensional table, and belongs to a printing device calibration method in the image copy field. The method comprises a step of performing color correction on color conversion circularly based on a multi-dimensional lookup table. A mapping relationship between an input point set and an output point set is established for the color conversion according to the multi-dimensional lookup table. By means of the method and the system of the present invention, for different combinations of paper, printing ink and devices, a color conversion table can be corrected to a precise degree with both the chromatic aberration and the visual sense close to the target color, thereby achieving the objective of color consistency of color management.

IPC Classes  ?

• G06F 3/12 - Digital output to print unit

Abstract

The present invention relates to an image interpolation method and device based on an autoregressive model, belonging to the technical field of digital image enhancement. The method of the present invention comprises: first, interpolating a low-resolution image up to a target scale, so as to obtain an interpolated image M; then, determining a local area W in the image M to be interpolated, establishing two autoregressive models, i.e. a horizontally perpendicular autoregressive model and a 45 degree diagonal autoregressive model, for each pixel point in the local area W except for the edge pixel points, and determining an initial objective function F0 according to the autoregressive models; and then, down-sampling the local area W except for the edge pixel points to the same size as that of the low-resolution image, so as to obtain a local area W', subtracting a corresponding area in the low-resolution image from the local area W' one pixel value by one pixel value, and adding the result to the initial objective function F0, so as to obtain an objective function F; and finally, performing iteration on the objective function F, so as to obtain a pixel point value of a centre block of the local area W. The present invention improves the efficiency of the method for image interpolation in any proportion.

IPC Classes  ?

• H04N 1/58 - Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction

Abstract

Disclosed are a method and device for adjusting a paper feeding speed in a digital printing system. The method comprises the following steps: determining that the received dot array data reaches a threshold which allows dot array data to be sent, and then sending the received dot array data to an imaging component (200); after sending the dot array data, adjusting the paper feeding speed of the imaging component according to the size of the remaining dot array data when it is determined that the size of the remaining dot array data is not within a preset range (210), thus improving the imaging speed and stability of the digital printing system.

IPC Classes  ?

• G06K 15/00 - Arrangements for producing a permanent visual presentation of the output data

Abstract

Disclosed are a self-adaptive rate method and device for HTTP streaming media. The method includes: a client adopting the TCP protocol on a transport layer, adopting the HTTP protocol on an application layer, and acquiring streaming media of a selected code rate from a service end, wherein the selected code rate allows the volume of buffer data of a buffer area for buffering the streaming media at the current download rate to be kept within a set range. The present invention improves the user experience.

IPC Classes  ?

• H04N 21/643 - Communication protocols

Abstract

The present invention provides a non-local mean-based video denoising method, so as to remove an illumination change in a video by using image histogram standardization filtering processing. The present invention further provides a non-local mean-based video denoising apparatus. The apparatus comprises a video denoising module used for remove an illumination change in a video by using image histogram standardization filtering processing. In the present invention, self-adaptive adjustment can be carried out on a change of an illumination condition.

IPC Classes  ?

• G06T 5/00 - Image enhancement or restoration

Abstract

Disclosed are a method and a device for controlling video quality fluctuation based on scalable video coding, which relate to the field of network video transmission, and are capable of coping with video quality fluctuation caused by sudden change of bandwidth, and capable of controlling video quality fluctuation more precisely. The method of the present invention comprises: performing scalable video coding on video data to be transmitted to generate a base layer and at least one enhancement layer; sending the video data undergoing the scalable video coding to a terminal device; determining a current expected code rate according to a transmission situation of the video data on a currently used channel, the current expected code rate being the maximum data transmission code rate capable of being burdened by the predicted currently used channel; obtaining the current highest enhancement layer according to the current expected code rate, the sum of all code rates occupied at the time of transmitting video data governed by the current highest enhancement layer being not greater than the current expected code rate; and sending the video data governed by the current highest enhancement layer to the terminal device.

IPC Classes  ?

• H04N 21/00 - Selective content distribution, e.g. interactive television or video on demand [VOD]

Abstract

Disclosed are a multicolour overprint control method and device applicable to an intermittent printing apparatus. According to the operating characteristic of the intermittent printing apparatus, the method solves the problems of overlap and inaccurate overprint of various colours during intermittent printing by controlling the relationship between the distance between adjacent colour group modules of different colours and the motion distance between uniform segments of the intermittent printing apparatus. In addition, the method also sets different inkjet printing modes in accordance with whether the detected inkjet printing of the same colour group module is in a first period, thereby solving the problems of printing media waste and discontinuous printing data. The method achieves multicolour digital inkjet printing by combining the unique motion mode of the printing media thereof, and makes printing contents flexible and changeable on the basis of guaranteeing printing efficiency.

IPC Classes  ?

• B41F 13/04 - Conveying or guiding webs through presses or machines intermittently
• B41J 29/393 - Devices for controlling or analysing the entire machine
• B41J 2/01 - Ink jet

Abstract

Disclosed are a distributed digital inkjet printing method and system supporting variable data. A colour surface controller is configured for each print colour surface to increase the data transmission and computation speed of a hardware control module of each colour surface; and in addition, a server conducts RIP computation and transmits the computed page data of each colour surface to each colour surface controller. By using the method, the data transmission amount and the data amount read from a hard disk can be effectively reduced, and the computation efficiency can be increased, thereby increasing the printing speed of digital printers.

IPC Classes  ?

• G06F 3/12 - Digital output to print unit

Abstract

Provided are a method and a device for processing a template file. The device for processing a template file may comprise: an xml file generation module (10), configured to generate an xml file comprising a parameter of a dynamic interactive object; and a data production module (20), configured to set an action for opening the xml file in description of the template file, so as to display an effect and behavior of the dynamic interactive object after the action for opening the xml file is triggered. In an embodiment, the device for processing a template file may further comprise: a data display module (30), configured to, when the template file is opened by a reader, the action is triggered to open the xml file to obtain the dynamic interactive object, so as to display the effect and behavior of the dynamic interactive object in the reader.

IPC Classes  ?

• G06F 17/21 - Text processing

Abstract

A bi-directional typesetting method and device. The method comprises: acquiring a sample formed by performing bi-directional typesetting on a document; determining, from the obtained sample, at least one reverse section consisting of continuous characters that need to be reversed; and determining positions of the characters that need to be reversed in the document after the reversion, and recording the positions in a large sample.

IPC Classes  ?

• G06F 17/21 - Text processing

Abstract

The present invention relates to the technical field of font library, provides a Chinese character constructing method and device, and a font library building method, and is capable of solving problems that the current Chinese character constructing technology has low efficiency, high cost and cannot structure characters in real time. The Chinese character constructing method of the present invention comprises: obtaining a character code, a component code, and a structure code of a Chinese character to be constructed, and extracting a Chinese character component from a Chinese character component library according to the component code, the structure code specifying the structure of the Chinese character and a position of a Chinese character component in the Chinese character; generating glyph data of the Chinese character by using the Chinese character component and according to the structure code, and matching the glyph data with the character code. The font library building method of the present invention comprises generating glyph data and a character code corresponding to a Chinese character by using the Chinese character constructing method, and building a font library by using the glyph data. Correspondingly, also provided are a character constructing method, a font library building method, and a character constructing device applicable to all characters having structures. The present invention can be used to build a super font library.

IPC Classes  ?

• G06F 3/048 - Interaction techniques based on graphical user interfaces [GUI]
• G06F 3/023 - Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes

Abstract

Provided are a dispatching system and method applied to journalist dispatching. The dispatching system comprises a map positioning device (101), a dispatching device (102) and a communication device (103), wherein the map positioning device (101) is used for positioning the positions of all the journalists, marking the position of each journalist and the position where a news event occurs, and calculating the shortest time required for each journalist to arrive at the position where the news event occurs; the dispatching device (102) is used for determining which journalist can arrive at the position where the news event occurs within the shortest time out of the journalists in an idle state in accordance with the shortest time required for each journalist to arrive at the position where the news event occurs and state information about each journalist, and sending a dispatching task and a clue about the news event to the communication device (103) of the journalist; and the communication device (103) is used for feeding back the state information about the journalist to the dispatching device (102) and receiving the dispatching task and the clue about the news event sent by the dispatching device (102). The solution is applicable to the field of automated journalist dispatching.

IPC Classes  ?

• G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)

Abstract

Disclosed is a method for transmitting a video, which is used for increasing video transmission and receiving quality. The method comprises: generating multiple layers of video streams; in accordance with an obtained first distortion value, obtaining a corresponding first antennae/video matching matrix; separately dispatching each layer of video streams to respective antennae in accordance with the first antennae/video matching matrix; and transmitting same in accordance with the dispatched video streams. Also disclosed are a device for achieving the method, and a method and device for receiving a video.

IPC Classes  ?

• H04L 1/06 - Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity

Abstract

Provided are a mobile payment method, device and system for a server end and a client. The mobile payment method for a server end includes: receiving a payment request message sent by a client (101); and selecting a piece of payment channel information from a preset payment channel information set and issuing same to the client (102). The payment channel information set consists of a plurality of pieces of channel information, the regions covered by different payment channel information do not overlap completely, and the multiple pieces of payment channel information cover all the regions. The server end can select different payment channel information provided by a plurality of payment providers to form a payment channel information set so that the provided payment server can cover all the regions, which breaks through the limit in the prior art that a certain piece of payment channel information only covers some regions.

IPC Classes  ?

• G06Q 20/16 - Payments settled via telecommunication systems

Abstract

The present invention relates to computer technology field, particularly to a method and system for downloading a font file, and can be used for resolving the problem in prior art that a user can not download the needed font file from a file server when the size of the needed font file exceeds the gateway limit corresponding to the user. The font file downloading method of the present invention embodiment comprises: splitting the font file into a plurality of sub font files each size of which is not greater than the gateway transmission limit threshold, if the size of the font file needing to be downloaded by a user device is greater than the gateway transmission limit threshold corresponding to the user device; sending all sub font files to the user device. With the method of the present invention embodiment, the situation that the user can not download the needed font file from the file server when the size of the font file exceeds the gateway limit corresponding to the user can be avoided.

IPC Classes  ?

• G06F 17/30 - Information retrieval; Database structures therefor

Abstract

A method and device for overprinting page graphic elements. The method comprises: determining, according to attribute information of all original graphic element objects in the original description of a page, all the intersecting original graphic element objects; separating intersecting parts from each group of the intersecting original graphic element objects, using each separated graphic element object as an independent current graphic element object, and generating attribute information comprising path information of the current graphic element objects; for each group of the intersecting original graphic element objects, performing overprinting according to overprinting attribute information and color information of the intersecting original graphic element objects, determining color information of the current graphic element objects, and adding the color information into the attribute information; and generating, according to the attribute information of the current graphic element objects and attribute information of the non-intersecting original graphic element objects, the current description of the page. By using the method and device for overprinting page graphic elements according to the embodiments of the present invention, the overprinting of graphic element objects can be completed in the page description stage.

IPC Classes  ?

• G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions

Abstract

The present invention relates to the technical field of computer character input, and provides a method and system for generating a control instruction according to the change of a glyph outline. The method comprises: reading original data of a glyph outline; modifying the glyph outline; generating a control instruction according to the change of the glyph outline data; and conducting the control instruction into a character library. In the present invention, the glyph outline can be directly modified, the modification of the glyph outline is separated form the generation of the control instruction, the control instruction is automatically generated according to the change of the glyph outline data, and the control instruction is optimized when being generated, thereby simplifying the operation, reducing the length of the control instruction, improving the efficiency of adding the control instruction, and avoiding the problem that the character library becomes oversized due to an excessively large amount of the control instruction data.

IPC Classes  ?

• G06F 3/048 - Interaction techniques based on graphical user interfaces [GUI]

Abstract

The present invention provides a digital inkjet printing synchronous control device, which comprises: a storage unit, for storing data of various colored surfaces; a control unit, for controlling an interactive processing unit to perform data receiving, storage and sending as well as generation of a printing trigger signal; and the interactive processing unit, under the control of the control unit, for receiving from a front-end system of a digital inkjet printing apparatus the data of the colored surfaces, storing the received data into the storage unit, sending the stored data to a back-end system of the digital inkjet printing apparatus, generating, according to a signal from a peripheral encoder and/or color code sensor of the digital inkjet printing apparatus, printing trigger signals of the colored surfaces, and sending the printing trigger signals to the back-end system of the digital inkjet printing apparatus. Correspondingly, the present invention provides a digital inkjet printing synchronous control method. Therefore, continuous printing of pages having different sizes and multiple colored surfaces can be implemented.

IPC Classes  ?

• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism

Abstract

An ink jet printing control method and device, the method comprising: judging whether the interval distance between a detected current color code on a print stock and the previous color code of the current color code is smaller than a time delay distance; if yes, then recording the interval distance, and printing the content corresponding to the current color code after the print stock has moved for a period of time required for the interval distance from the time when the content corresponding to the previous color code is completely printed. With the solution of the present invention, within the time when the device is waiting for the previous color code of the print stock to move for the time delay distance, recording the interval distance between the current color code and the previous color code after the current color code is detected, and printing the content corresponding to the current color code after the content corresponding to the previous color code is completely printed and the print stock has moved for the interval distance, thus avoiding the occurrence of defective prints because the current color code is not processed.

IPC Classes  ?

• B41J 11/46 - Controlling by marks or formations on the paper being fed
• B41J 29/393 - Devices for controlling or analysing the entire machine

Abstract

Disclosed are a network comment collection method and system. The method comprises: obtaining a web page entry link address; determining whether a web page corresponding to the web page entry link address has N network comments, N being a positive integer; when there are N network comments, determining whether M network comments among the N network comments satisfy a collection condition, M being a positive integer less than or equal to N; when there are M network comments satisfying the collection condition, collecting the M network comments.

IPC Classes  ?

• G06F 17/30 - Information retrieval; Database structures therefor

Abstract

Disclosed are a method and device for generating a recognition model for use in named-entity recognition, and a method and device for named-entity recognition. The method for named-entity recognition comprises: acquiring a first feature information set of a pending training text; a first recognition model recognizing the first feature information set of the pending training text, acquiring a second feature information set, where the second feature information set comprises M number of named entities acquired via the recognition of the first feature information set by the first recognition model, and where M is an integer greater than or equal to zero; and error correcting the M number of named entities in the second feature information set on the basis of an error-driven model, acquiring K number of named entities, where K is an integer greater than or equal to zero but less than or equal to M.

IPC Classes  ?

• G06F 17/30 - Information retrieval; Database structures therefor

Abstract

The present invention relates to the field of digital image enhancement technologies, and more particularly to a nonlocality-based super-resolution reconstruction method and device, so as to solve the problem of relatively low resolution of an image after nonlocality-based super-resolution reconstruction in the prior art. The method in the embodiment of the present invention comprises: determining the position of a current macroblock in a search window in every other frame of image; according to the position of the macroblock, where a pixel point corresponding to a current pixel block is located, in the search window in every frame of image, determining the search window of the current pixel block in every frame of image, and determining a similarity value of each pixel block in the search window relative to the current pixel block; and according to the similarity value of each pixel block, determining an optimized central pixel value of each pixel block. By use of the embodiments of the present invention, the resolution of an image subjected to nonlocality-based super-resolution reconstruction is enhanced.

IPC Classes  ?

• H04N 7/46 - using subsampling at the coder and sample restitution by interpolation at the coder or decoder
• G06T 5/00 - Image enhancement or restoration
• G06T 7/00 - Image analysis

Abstract

Disclosed are a method and system for collecting network data. The method is used for collecting data of a network document which is released on a website and relevant to M subjects respectively, where M is a positive integer. The method includes: according to the type corresponding to a webpage link address of network data to be collected, configuring the webpage link address of network data to be collected into a queue of the corresponding type, the webpage link address of network data to be collected being the link address of the webpage where the data of the network document which is relevant to M subjects respectively is located; acquiring the webpage source codes corresponding to the webpage link address of network data to be collected in the queue of the corresponding type; and according to information about a URL corresponding to the webpage source codes and a collection depth value of the URL, extracting data of the network document corresponding to the URL.

IPC Classes  ?

• G06F 17/30 - Information retrieval; Database structures therefor

Abstract

The present invention provides a method and an apparatus for generating a multi-bit deep halftone amplitude modulation dot. The method comprises: scanning an input image to obtain a value Pxy of a current pixel, x representing a transverse location index of the current pixel, and y representing a longitudinal location index of the current pixel; starting from i=0, obtaining gj from a preset array multi-bit deep threshold value matrix G, determining whether Pxy

IPC Classes  ?

• H04N 1/40 - Picture signal circuits
• H04N 1/405 - Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

Abstract

The present invention provides a method for calibrating a special color, comprising: determining a special color target value; and calibrating a printing device in an enumeration cycling manner, so that a special color measurement value of a color block output by the printing device approximates the special color target value. The present invention further provides an apparatus for calibrating a special color, comprising: a target module, used for determining a special color target value; a calibrating module, used for calibrating a printing device in an enumeration cycling manner, so that a special color measurement value of a color block output by the printing device approximates the special color target value. The present invention precisely calibrates the special color of the printing device.

IPC Classes  ?

• H04N 1/46 - Colour picture communication systems

Abstract

Disclosed in the present invention are an inkjet printing positioning device and control method thereof. The inkjet printing positioning device comprises a base; a linear guide rail, which is fixedly mounted on the base; an inkjet unit, which moves in a matched manner with the linear guide rail; a ball screw, which drives the inkjet unit to move linearly when being rotated; a servomotor, which is used for driving the ball screw to rotate; a zero position detecting device, which is mounted in a position on the moving travel route of the inkjet unit from the initial position to the printing area, and used for sending a zero position signal when detecting that the inkjet unit passes by; a controller connecting the zero position detecting device and the servomotor, which is used for controlling the servomotor to drive the inkjet unit to move from the current position to the printing area and locate there. When the zero-position signal is received, the servomotor is controlled to drive the inkjet unit to move by a predetermined displacement. The utilization ratio of the inkjet head and nozzles is not influenced, and the quick and automatic printing positioning is achieved.

IPC Classes  ?

• B41J 25/24 - Case-shift mechanisms; Fount-change arrangements

Abstract

Provided in the present invention is a method for controlling a pause in printing, comprising: transmitting imaging data to an imaging component, also transmitting one printing signal while transmitting the imaging data of each page, and the imaging component printing the imaging data when the printing signal is received; generating a pause printing command when a reason for pausing is received; suspending the transmission of the printing signal to the imaging component on the basis of the pause printing command, and the imaging component suspending the printing of the imaging data when the printing signal can no longer be received. Also provided in the present invention is a device for controlling the pause in printing, comprising: a data receiver unit used for receiving job data from a host side, a data processing unit used for converting the job data received into the imaging data, a control unit used for issuing the pause printing command when the reason for pausing from the host side is received, and a printing unit used for transmitting the imaging data to the imaging component, for transmitting one printing signal while transmitting the imaging data of each page, and for suspending the transmission of the printing signal to the imaging component when the pause printing command is received.

IPC Classes  ?

• G06F 3/12 - Digital output to print unit

Abstract

Provided in the present invention is a control system for use in digital printing, comprising: a host, multiple main control boards connected to the host, multiple sets of nozzle plates, where each set of nozzle plate respectively is connected to one main control board and to one set of nozzle. Also provided in the present invention is a control method for use in digital printing, comprising: the host decomposing a job into multiple portions, and distributing each portion of the job to one main control board; the control boards converting concurrently into a page the portion of the job received by each, and distributing to the set of nozzle plate connected thereto; the nozzle boards converting the page into printing data, and driving the nozzle sets connected to the nozzle boards to print the printing data thereof. The present invention allows for the effect of improved processing performance of the control system.

IPC Classes  ?

• G06F 3/12 - Digital output to print unit
• B41J 29/393 - Devices for controlling or analysing the entire machine
• G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers

Abstract

The present invention provides a method and a system for document printing management and control and source tracking. A printing management service program is deployed and run at a server end. A printing monitoring service program is deployed and run at a client end. The printing management service program is responsible for saving client end information, monitoring and managing a client end computer, setting a printing management policy, and delivering an operation instruction to the client end. The printing monitoring service program is responsible for collecting the client end information, sending the client end information to the server end, and executing the operation instruction. The setting the printing management policy comprises authorizing at least one of the model and the name of a client end printer, the type of the printer, the application type, and the confidentiality level of a printed document, and setting a title sensitive word and document source tracking information. Through the present invention, the control on a printing operation of the client end can be enhanced, the flexibility of setting the printing control policy can be increased, and effective document source tracking and content audit means are provided, thereby preventing important paper documents from being printed randomly and being spread illegally.

IPC Classes  ?

• G06F 3/12 - Digital output to print unit
• H04L 29/06 - Communication control; Communication processing characterised by a protocol

Abstract

Disclosed is a control method for a digital ink-jet printing device to carry out multicolour ink-jet printing on an intermittent rotary printing device. The method includes the following steps: judging whether the current page is the first page; if yes, calculating an image length of the current page which needs to be printed, by subtracting the distance between an imaging components group and a reference from the page length, wherein the reference is the foremost printed imaging components group in the direction of the movement of a printed body, and acquiring the length of the current page as the image data of the calculated length after delaying the distance; if no, acquiring the unprinted length of the previous page as the image data of the distance, and the length of the current page as the image data of the calculated length. Accordingly, a control system is disclosed. The method and the system combine digital ink-jet printing technology with traditional printing technology, thus not only preserving the production efficiency of traditional printing but also greatly improving the utilization ratio of dielectric materials.

IPC Classes  ?

• B41J 2/01 - Ink jet
• B41J 2/07 - Ink jet characterised by jet control
• B41J 29/393 - Devices for controlling or analysing the entire machine
• B41F 13/04 - Conveying or guiding webs through presses or machines intermittently

Abstract

Disclosed are a method and system for incremental collection of forum replies. The method periodically judges whether or not there exist a new post and a post having new replies in all the forum list pages to be collected; if yes, then information about the main post and replies is extracted from the newly added posts, and information about new replies is extracted from the post having new replies. The method and system can collect the information about all the main posts and replies quickly, accurately and completely, thus solving the problem that when the existing search engine searches the page turning reply information about the posts some of them are skipped or cannot be found.

IPC Classes  ?

• G06F 17/30 - Information retrieval; Database structures therefor

Abstract

A webpage information detection method and system are disclosed. The present invention comprises: preliminarily extracting a keyword from a webpage text, and storing a correspondence between the keyword extracted from the webpage text and a URL of the webpage to a database; during webpage information detection, first obtaining a source file of the webpage to be detected, then retrieving from the database a keyword of the URL matching that of said webpage, comparing the keyword with the content of a source file of said webpage, and determining, according to the degree to which there is a match, whether information exists in said webpage. The present invention is capable of improving the accuracy of webpage information detection.

IPC Classes  ?

• G06F 17/30 - Information retrieval; Database structures therefor

Abstract

Disclosed are an amplitude modulation (AM) screening method and an AM screening apparatus. The method comprises a threshold matrix constituted by regular hexagonal dots and for use in AM screening. The apparatus comprises a matrix module, for use in the threshold matrix constituted by hexagonal dots and for use in AM screening. The method and apparatus solve the problem in the prior art of the dots being prone to dot gain and texture-marks, thereby improving print quality.

IPC Classes  ?

• H04N 1/405 - Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
• G06F 3/12 - Digital output to print unit
• G06F 3/13 - Digital output to plotter
• G06T 1/00 - General purpose image data processing
• B41C 1/00 - Forme preparation
• B41M 1/26 - Printing on other surfaces than ordinary paper
• G03F 5/00 - Screening processes; Screens therefor

Abstract

Disclosed are a method and device for filtering harmful information on a network, which relate to the technical field of computer information processing and information filtering, wherein the method for filtering the harmful information on the network includes: acquiring text information to be filtered, advanced-researched model information of a system and user feedback model information; pre-processing the text information to be filtered; implementing characteristic information matching between the pre-processed text information to be filtered and the advanced-researched model information of the system, and getting a first matching result; implementing characteristic information matching between the pre-processed text information to be filtered and the user feedback model information, and getting a second matching result; and filtering the text information to be filtered according to the first matching result and the second matching result. Thereby the performance of filtering the harmful information automatically is improved, and the automatic update of the system information can be realized.

IPC Classes  ?

• G06F 17/27 - Automatic analysis, e.g. parsing, orthograph correction
• G06F 17/30 - Information retrieval; Database structures therefor

Abstract

Disclosed are a method, device and system for processing public opinion topics. The method comprises: retrieving public opinion topics including public opinion information in network; acquiring characteristic information of the public opinion topics, and detecting whether or not the characteristic information of the public opinion topics meet the alarm conditions; if yes, saving the public opinion topics and the characteristic information thereof. The method could alarm of the public opinion topics, manage and keep tracing the saved public opinion topics, acquire the variation tendency of their forwarding, hits and commentary and so on, analyze and arrange the public opinion topics, and generate a brief report of public opinion.

IPC Classes  ?

• G06F 17/30 - Information retrieval; Database structures therefor

Abstract

Provided are a method for rasterizing of page digital images and a device thereof. The method comprises: analysing a page digital image to obtain basic information, positional information and rasterizing information of the image, with the basic information thereof including image data, image type, image width, image height and image bit depth (S10); decoding the data encoding type to obtain image data and save the same to a buffer (S20); acquiring the image data from the buffer, and using the image type, the image width, the image height, the image bit depth and the positional information of the image to rasterize the image data, so as to obtain a rasterized page dot matrix (S30). The solution reduces read-write operations for data files on disk during the rasterization of the digital image, and improves the rasterization efficiency of the digital image.

IPC Classes  ?

• G06T 1/60 - Memory management

Abstract

The present invention provides a watermarking image block division method for western language watermarking processing, comprising: performing line and column division on a western language image to obtain multiple character image blocks; recognizing valid character image blocks from the character image blocks; making statistics on sizes of the valid character image blocks to determine whether the western image is a document having a large font size or a document having a small font size; respectively dividing the large-font documents and the small-font documents into groups with different numbers of words; and equally dividing the word groups into multiple portions, said portions corresponding to watermarking image blocks. The present invention also provides a watermarking image block division device for western language watermarking processing. The present invention guarantees the operability of embedding watermarks.

IPC Classes  ?

• G06T 1/00 - General purpose image data processing

Abstract

A method for measuring the total amount of ink of an ink-jet printing apparatus comprises: printing sampling figures (S10); measuring colours of the sampling figures using a measuring instrument (S20); determining the total amount of ink according to the result of the measurement (S30). A device for measuring the total amount of ink in an ink-jet printing apparatus comprises: a printing module (10) for printing sampling figures; a measuring instrument (20) for measuring colours of the sampling figures; and a determining module (30) for determining the total amount of ink according to the result of the measurement. The method and the device can increase the quality of ink-jet printing.

IPC Classes  ?

• B41J 2/21 - Ink jet for multi-colour printing
• G01J 3/46 - Measurement of colour; Colour measuring devices, e.g. colorimeters

Abstract

A screening method for use in intaglio printing, comprising: dividing the entire tonal range into several types of zones on the basis of brightness; generating dots of different screen patterns for the different types of zones. Also provided is a screening apparatus for use in intaglio printing, comprising: a division module (10), for use in dividing the entire toning range into several types of zones on the basis of brightness; a generation module (20), for use in generating dots of different screen patterns for the different types of zones. In the method and apparatus, employment of the dots of various screen patterns solves the prior art problem of being prone to creating texture-marks, thereby improving print quality.

IPC Classes  ?

• G03F 5/22 - Screening processes; Screens therefor combining several screens; Elimination of moire
• H04N 1/405 - Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
• B41N 1/06 - Printing plates or foils; Materials therefor metallic for relief printing or intaglio printing
• B41M 1/10 - Intaglio printing

Abstract

Disclosed is a method for constructing an organic chemistry structural formula. The method comprises: acquiring a user-entered character string via a keyboard; searching in a pre-created code mapping collection for an organic chemical structure mapped to the character string; creating the organic chemistry structural formula using the organic chemical structure. Also disclosed is a device for constructing the organic chemistry structural formula. The device comprises: an acquisition module, for use in acquiring the user-entered character string via the keyboard; a search module, for use in searching in the pre-created code mapping collection for the organic chemical structure mapped to the character string; a creation module, for use in creating the organic chemistry structural formula using the organic chemical structure. This solution increases the operational efficiency of entering the organic chemistry structural formula.

IPC Classes  ?

• G06F 3/023 - Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes

Abstract

Disclosed in the present invention are a bi-color duplex printing method and device. The method includes: acquiring two pages of original four color page dot-matrix according to a printing order every time, extracting effective first color data and second color data in the two pages of original four color page dot-matrix, respectively, and writing the first color data and second color data extracted respectively in first color data, second color data, third color data and fourth color data of a new page of four color page dot-matrix, respectively. The device includes a printing controller, which comprises an original page acquiring module (10) for acquiring two pages of original four color page dot-matrix according to a printing order every time, an extracting module (20) for extracting effective first color data and second color data in the two pages of original four color page dot-matrix, respectively, and a new page generating module (30) for writing the first color data and second color data extracted respectively in first color data, second color data, third color data and fourth color data of a new page of four color page dot-matrix, respectively. The printing efficiency is improved by the method and the device.

IPC Classes  ?

• B41J 2/21 - Ink jet for multi-colour printing
• G06F 17/21 - Text processing
• G06F 3/12 - Digital output to print unit

Abstract

The present invention provides a method for editing an organic chemistry structural formula, comprising the following steps: monitoring the input from a keyboard; confirming a focus on the organic chemistry structural formula in an interactive chemical layout interface; in response to the input, displaying on the interactive chemical layout interface an executable operation for the focus. The present invention also provides a device for editing the organic chemistry structural formula, comprising: a monitoring module, for use in monitoring the input from the keyboard; a focus module, for use in confirming the focus on the organic chemistry structural formula in the interactive chemical layout interface; a display module, for use in, in response to the input, displaying on the interactive chemical layout interface the executable operation for the focus. The present invention increases the operational efficiency of editing of the organic chemistry structural formula.

IPC Classes  ?

• G06F 3/048 - Interaction techniques based on graphical user interfaces [GUI]

Abstract

A linear reciprocating device and a location controlling method utilizing the device are provided. The linear reciprocating device comprises a machine base, a linear guide(2) fixedly mounted on the machine base, a linear reciprocating load(4) matching with the linear guide(2) and a motor(8) driving the load(4), and also comprises: a position detection device detecting the original position of the load(4), a displacement detection device detecting a relative displacement value of the load(4) in a positioning region, a controller coupled with the position detection device, the displacement detection device and the motor(8). The device and the location controlling method achieve higher positioning precision with lower cost.

IPC Classes  ?

• H02P 8/30 - Holding position when stopped
• G05B 19/19 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
• G05D 3/12 - Control of position or direction using feedback

Abstract

It's provided a method for adjusting an angle of a chemical bond figure in the present invention, which comprises: accepting input from a special key, as long as typesetting focuses on a point of the chemical bond figure; setting a rotating direction corresponding to the input; setting a rotating angle in the rotating direction for the chemical bond figure; rotating the chemical bond figure around another point for the rotating angle in the rotating direction. It's provided a device used to adjust the angle of the chemical bond figure in the present invention, which includes: input module, which is used to accept the input from the special key, as long as typesetting focuses on the point of the chemical bond figure; direction module, which is used to set the rotating direction corresponding to the input; angle module, which is used to set a rotating angle in the rotating direction for the chemical bond figure; rotating module, which is used to rotate the chemical bond figure around another point for the rotating angle in the rotating direction. The invention improves the efficiency of the operation to adjust the chemical bond figure.

IPC Classes  ?

• G06F 17/21 - Text processing

Abstract

Provided is a trapping method, comprising: vectorizing bitmaps in a PDF file to obtain a path description; obtaining an intersection between the path and other metafiles in the PDF file; and trapping the intersection result. Also provided is a trapping apparatus, comprising: a vectorizing module for vectorizing bitmaps in a PDF file to obtain the path description; an intersection module for obtaining the intersection between the path and other metafiles in the PDF file; and a trapping module for trapping the intersection result. The present invention ensures bitmap trapping accuracy.

IPC Classes  ?

• H04N 1/58 - Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction

Abstract

A device for controlling the inkjet printing position and the method thereof are disclosed. The method includes the following steps: detecting a color scale in a fed paper and outputting a pulse signal correspondingly by a color scale sensor (S10); setting an expected window in which the pulse signal takes place; when the pulse signal is detected in the expected window(S20), starting the inkjet printing after delaying a preset period, and when the pulse signal is not detected in the expected window or is detected out of the expected window, starting the inkjet printing after carrying out a correction (S30). The method improves the inkjet printing quality.

IPC Classes  ?

• B41J 2/01 - Ink jet

Abstract

A device for printing a bar code of variable data and the motheod thereof are disclosed. The method comprises: printing the bar code of variable data corresponding to the first bar code data on a medium by an inkjet printing device (S10); conveying the medium to a detection area by a driving device (S20); scanning the bar code of variable data on the medium by an online detecting device in the detection area, and getting the second bar code data (S30); and comparing the first bar code data with the second bar code data, and giving an alarm when these two bar code data are not identical (S40). The invention can improve a printing up-to-standard rate of the bar code of variable data.

IPC Classes  ?

• B41J 3/01 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for special character, e.g. for Chinese characters or barcodes
• G06K 9/03 - Detection or correction of errors, e.g. by rescanning the pattern

Abstract

A method and device for eliminating cracks within a page is provided. The method comprise: constituting an equidistant range by the area between two equidistant lines which are parallel and generated for the outline vector of each pixel within a page with a specified threshold value as a distance; judging the position relationship of the second vector and the first vector with the equidistant range after a traverse of each outline vector with the first vector recognized by the current traversing the outline vector and the second vector recognized by the other outline vector; performing the trapping process between the first vector and the second vector or not according to the position relationship. The method and device can quickly and easily detect the cracks of the page.

IPC Classes  ?

• G06F 17/25 - Automatic justification

Abstract

The present invention provides a rasterization method, comprising: segmenting a pixel at a position where a color jump occurs to obtain multiple sub-pixels with continuously and gradually changing colors; and rasterizing the sub-pixels respectively. The present invention provides a rasterization device, comprising: a segmentation module, for segmenting a pixel at a position where a color jump occurs to obtain multiple sub-pixels with continuously and gradually changing colors; and a rasterization module, for rasterizing the sub-pixels respectively. The present invention improves the rasterization speed and the image quality.

IPC Classes  ?

• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints

Abstract

The present invention discloses a method for video coding processing wherein the method includes: in spatial scalable video coding, according to the relationship between an input differential sequence of a coder for a layer to be coded and a quantization step size of a reference layer coder, a coding distortion model of the coder for the layer to be coded is established; by analyzing the relationship between the code rate of the reference layer coder and the code rate of the coder for the layer to be coded, a code rate model of the coder for the layer to be coded is established; according to the coding distortion model and the code rate model of the coder for the layer to be coded, the code rate of the reference layer coder and the coder for the layer to be coded is allocated. Also, a device for video coding processing is provided by the present invention. The present invention solves the problem in the prior art of poor coding performance resulting from a lack of effective allocation of the code rate for each layer, and thereby largely improves the coding performance of the spatial scalable coding and enables maximized coding efficiency.

IPC Classes  ?

• H04N 7/26 - using bandwidth reduction (information reduction by code conversion in general H03M 7/30)

Abstract

A method and device for color correction are provided, which serve to solve the problem of the low color correction processing speed for images input into a computer in the prior art. The main technical solution includes that: an input image is divided into not less than one image block; various color component values of all pixels in each image block are compared with each other, and the image block with the same values is regarded as a simple block, the image block with the different values is regarded as a complex block; and a color correction processing is performed on one pixel of the simple block, then the color correction processing result is copied to other pixels of the simple block. With the technical solution, the object of increasing processing speed can be achieved by performing simplified processing directly toward certain image parts with special features, and the color correction processing speed can be increased without general influence on the present color correction effect.

IPC Classes  ?

• H04N 1/60 - Colour correction or control

Abstract

A formula inputting method and system for interactive formula typesetting software, which belong to the field of printing and typesetting technology. The method includes: classifying and nominating operators or signs, establishing a mapping relation table between the names of the operators or the signs and the operators or the signs; inputting a name of the operators or the signs in a character inputting area of a formula inputting method interface; according to the mapping relation, displaying the operators or the signs matched with the input name in a formula display area of the formula inputting method interface, selecting the operators or the signs and inserting them into a type face. This method can rapidly input a formula and improve the efficiency of formula typesetting.

IPC Classes  ?

• G06F 17/24 - Editing, e.g. insert/delete
• G06T 11/60 - Editing figures and text; Combining figures or text

Abstract

An ink-jet printer and a printing method thereof for improving the quality of printing. The method includes: according to the time for spraying ink droplets to the medium and moving velocity of the medium, obtaining the time error of time intervals between the time taken for ink droplets arriving at the medium when the medium moving velocity is variable and constant; adjusting jet moment of the ink droplets based on the time error; jetting the ink droplets according to the adjusted jet moment. Adjusting the jet moment of the ink droplets can improve the quality of printing by avoiding positional error which is brought when the ink droplets fall on the medium which moves in a variable velocity, eliminating accumulative error when multiple ink droplets are jetted, and adjusting the arriving positions of the ink droplets arriving at the medium.

IPC Classes  ?

• B41J 2/12 - Ink jet characterised by jet control testing or correcting charge or deflection

Abstract

An image processing method includes: generating a stochastic screening dither matrix (S1O1); performing a centered positive-negative conversion operation on said stochastic screening dither matrix (S 102); generating a screen dot dither contrast matrix for each color surface according to the stochastic screening dither matrix upon which said positive-negative conversion operation has been performed and to the set stochastic screening dither threshold of each color surface of an image; performing a logical 'and' operation between each data item in a one-bit amplitude screen dot matrix of each color surface of an image and the data items in corresponding locations of the screen dot dither contrast matrix of said color surface, and using the result as the value of the corresponding data item in the one-bit amplitude screen dot matrix of said color surface after processing. An apparatus corresponding to the image processing method is also provided. According to the image processing method and apparatus, the problem in the prior art of an excess of pure-color pixels existing in the original one-bit dot matrix can be resolved.

IPC Classes  ?

• H04N 1/52 - Circuits or arrangements for halftone screening

Abstract

A method for compressing dot array pages is provided, which comprises the following steps: dividing the dot matrix pages to be compressed into at least two dot matrix page parts; processing each dot matrix page part obtained after division; determining the element type with the largest proportion in the dot matrix page part; and selecting a corresponding compressing mode to compress the dot matrix page part according to the determined element type with the largest proportion. Accordingly, an apparatus for dot array page compressing is provided. The technical proposal disclosed by the present invention can solve the problem that the same compressing method is applied to compress the whole dot matrix page in the prior art, so that the contradiction between compressing proportion and compressing rate can not be well relieved.

IPC Classes  ?

• H04N 1/41 - Bandwidth or redundancy reduction

Abstract

The present invention belongs to the technical field of the image processing, more particularly to the technology for simplifying the complicated path. The present invention provides a method and an apparatus for simplifying the complicated path, so as to implement simplifying any complicated path into the sample path of its described area. The method for simplifying the complicated path includes: resolving the complicated path into the vector linked list by means of the connection of the vectors with monotonicity; dividing each of the vectors into the array sections according to the intersection of each vector in the vector linked list and the other vector; from all the array sections, extracting the array sections located on the border of the area described by the complicated path, and linking each extracted vector by location to achieve the simple path. The method for simplifying the complicated path provided by the present invention employs a node scanning manner to simplify the complicated path into the simplest path of its described area at the vector level, and make the operation at the vector level for the complicated path possible.

IPC Classes  ?

• G06T 11/00 - 2D [Two Dimensional] image generation

Abstract

A method and system for automatically testing raster image processor. The method can detect whether a bitmap code generated by a to-be-tested raster image processor is consistent with a bitmap code generated by a reference raster image processor though comparing them to determine the accuracy of the bitmap output by the to-be-tested raster image processor, and further to determine the accuracy and stability of the to-be-tested raster image processor, and automatically submit the test samples. Relative to the judge by the human eyes, the method and system improves the precision of the test. And it saves the manpower and improves the efficiency to achieve the automatic submission of test samples.

IPC Classes  ?

• G06F 11/36 - Preventing errors by testing or debugging of software

Abstract

A device for controlling a pulse width is disclosed. The device comprises: a first univibrator (U1A) for receiving a syncpulse and generating and outputting a negative pulse whose width is a first presetted threshold, a second univibrator (U1B) for receiving the syncpulse and generating and outputting a positive pulse whose width is a second presetted threshold, a phase inverter (U2A) for receiving and reversion-processing the syncpulse and outputting a reversed syncpulse, and a trigger (U3A) for receiving the negative pulse, the positive pulse, and the reversed syncpulse, and generating and outputting a syncpulse whose width is between the first and the second presetted thresholds. A method for controlling a pulse width by using the device and a piezoelectric ink jet printing apparatus utilizing the device are also disclosed, which can prevent a piezoelectric ink jet head from being adversely affected due to a much more or less width of the syncpulse.

IPC Classes  ?

• B41J 2/07 - Ink jet characterised by jet control
• H03K 7/08 - Duration or width modulation

Abstract

A trapezoidal fire pulse generation method and device are provided, for determining the voltage values of a positive direct current control voltage signal and a negative direct current control voltage signal, and the voltage values of a rise time direct current control voltage signal and a fall time direct current control voltage signal of the pulse amplitude according to the trapezoidal fire pulse parameter value that is required to be outputted, and generating the corresponding direct current control voltage signal; the positive direct current control voltage signal and the negative direct current control voltage signal are modulated into square wave pulse; the rise time direct current control voltage signal, the fall time direct current control voltage signal and the square wave pulse are inputted into a reverse integrator to generate a trapezoidal fire pulse; the rise time parameter value of the trapezoidal fire pulse and the voltage value of the rise time direct current control voltage signal, and the fall time parameter value of the trapezoidal fire pulse and the voltage value of the fall time direct current control voltage signal have certain special magnitude relations, the method and device realize the control and adjustment of the rise time and fall time of a trapezoidal fire pulse, thus making the output trapezoidal fire pulse more stable and accurate.

IPC Classes  ?

• H03K 4/02 - Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform

Abstract

A cleaning pressure control device for an inkjet printer is used for lowering a pressure control complexity when a nozzle of a single inkjet head is separately cleaned. The device comprises at least one ink cartridge (1-4) having a gas port, at least two solenoid valves (5-9), a negative pressure gas port (11), a positive pressure gas port (13) and an atmosphere port (12). The gas port of each ink cartridge (1-4) is connected with the first port (501,601,701,801) of one solenoid (5-8). The second port (502,602,702,802) of this solenoid (5-8) is connected with the negative pressure gas port (11), and the third port (503,603,703,803) of it is connected with the first port (901) of the other solenoid (9). The second port (903) of the other solenoid (9) is connected with the positive pressure gas port (13), and the third port (902) of it is connected with the atmosphere port (12). The invention further discloses a cleaning pressure control method for an inkjet printer.

IPC Classes  ?

• B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles

Abstract

The invention provides an image printing method. This method includes: rasterizing an image that is to be printed according to a first resolution, so as to generate a first data dot matrix (STEP 10); splitting the first data dot matrix according to a multiple of the said first resolution relative to a second resolution, so as to generate a second data dot matrix (STEP 11); and outputting the said second data dot matrix to a printer having the said second resolution, so as to perform printing (STEP 12). Furthermore, the invention provides an image printing device. This invention has solved a problem in the art that the definition of the image printed by the printer is low. Therefore, the invention can improve image printing definition of the printer.

IPC Classes  ?

• G06F 3/12 - Digital output to print unit
• H04N 1/387 - Composing, repositioning or otherwise modifying originals
• B41J 2/01 - Ink jet

Abstract

A data processing method and a device are provided for solving the problems of low data processing speed and low system real-time performance in the current digital printing device. The method comprises the following steps: obtaining the lattice data which has undergone grating image processing and carrying out the bit conversion of the obtained lattice data with a row as a unit to obtain the bit stream data; according to the system parameter, determining the imaging component group corresponding to the bit stream data and the corresponding imaging component in the imaging component group, and generating a control signal which is used for controlling the bit stream data to be distributed into the corresponding imaging component group and the corresponding imaging component in the imaging component group according to the determined result; according to the control signal, distributing the bit stream data into the corresponding imaging component group and the corresponding imaging component in the imaging component group. The method improves the data processing speed and system real-time performance of the digital printing device.

IPC Classes  ?

• G06K 15/00 - Arrangements for producing a permanent visual presentation of the output data
• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism

Abstract

A method and device for embedding a watermark into a digital image, the method includes the following parts. Total or part of pixels of the digital image to be embedded are divided into group. The contained pixels number of each group is greater than or equal to three. Bit stream strings of the watermark to be embedded are divided into group. Each group contains a watermark signal. The group number of the bit-stream strings of the watermark is the same as the group number of the digital image pixels. The corresponding changed pixel values signal of the pixel values signal is calculated based on each pixel value signal and the corresponding watermark signal and a digital signal. The pixel values of the corresponding group pixel values of the digital image are changed based on the changed pixel value signal in order to realize embedding the watermark. At the same time, a method and device for extracting the watermark are disclosed.

IPC Classes  ?

• H04N 1/387 - Composing, repositioning or otherwise modifying originals
• H04N 5/913 - Television signal processing therefor for scrambling
• H04N 7/08 - Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band
• G06T 1/00 - General purpose image data processing

Abstract

A method and system for processing print jobs are provided. The method for processing print jobs includes: determining, according to the priority of a first print job applying to be printed, whether a second print job currently being processed in the Raster Image Processor (RIP) or a third print job currently being processed in the print apparatus needs to be interrupted; if the second print job should be interrupted, saving the processing state of said second print job and proceeding to process the first print job using the Raster Image Processor (102); if the third print job should be interrupted, saving the processing state of said third print job and printing the first print job using the print apparatus; the Raster Image Processor having once finished processing the first print job resumes processing the second print job according to the saved processing state of said second print job (105); the print apparatus having once finished printing the first print job resumes processing the third print job according to the saved processing state of said third print job (106).

IPC Classes  ?

• G06F 3/12 - Digital output to print unit
• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism

Abstract

A device for adjusting pressure in a container and a negative pressure generating and adjusting device for an ink cartridge are disclosed. The known devices of above types have not a strong resistance to interference while they generate a stable and low negative pressure. For solving the above problem, in the devices of the present invention, an air-extracting end of a vacuum pump (1) connects with one end of the first flow adjusting device (5). The other end of the first flow adjusting device (5) connects with an air-outletting end (61) of a three-way connector (6). The end (62) of the three-way connector (6) connects with an ink cartridge (12). An air-inletting end (63) of the three-way connector (6) communicates with atmosphere (4). Because the flow adjusting device (5) can suppress the fluctuation of the air extracting speed of the vacuum pump (1) to a certain degree, the air-extracting action of the air-outletting end (61) and the air-inletting action of the air-inletting end (63) in the three-way connector (6) have a certain self-adjusting ability to the pressure of the end (62), therefore the devices have a strong resistance to interference while they generate a stable and low negative pressure.

IPC Classes  ?

• B41J 2/175 - Ink supply systems

Abstract

A method in the field of printing for merging Portable Document Format documents which increases the merging efficiency of said documents. The method comprises: performing upon all priorities, according to a high-to-low priority sequence based on pre-determined priorities for key word type combination, the following processes until all merging pages and merged pages of the documents to be merged are completely determined: acquiring the key word combination corresponding to the key word type combination in the current priority; executing the following process according to each key word combination that is acquired, until all merging pages and merged pages of the documents to be merged are determined, or until processing of all acquired key word combinations is complete. In the remaining documents to be merged, selected file names include documents to be merged under the current key word combination. When it is judged that the selected documents include merging documents and merged documents, merging pages and merged pages are determined; and said merging and merged pages are then merged.

IPC Classes  ?

• G06F 17/21 - Text processing

Abstract

A method and system of parallel raster image processing under a CPU for supporting plural tasks in graphics and image printing process are provided, which include: plural raster image processes are started according to the detected task number supported by CPU; the jobs are distributed for each raster image process; the raster lattice data explained by the task is stored in a raster data area by raster image process; the raster lattice data in the raster data area is output. The invention is flexible and may flexible configure raster image process with the upgrading of new computer hardware. The invention can apply in uni-processor raster image processing system with any hardware configuration in the mean time and enhance the performance of raster image processing system.

IPC Classes  ?

• G06F 3/12 - Digital output to print unit
• G06F 9/46 - Multiprogramming arrangements

Abstract

A method selecting intra-frame predictive coding best mode for video coding applied in video coding and decoding field is provided. The method includes: constructing rate distortion cost function based on predictive rate; computing rate distortion cost for all predictive modes by the constructed function, then selecting the mode with the minimum rate distortion cost as the intra-frame predictive coding best mode according to the computing result. Accordingly, a device selecting intra-frame predictive coding best mode for video coding is provided. By the method, the selected mode is closer to the best mode selected by original rate distortion optimization model, so the need is effectively avoided to code every block actually in the process of rate distortion optimization.

IPC Classes  ?

• H04N 7/32 - involving predictive coding (H04N 7/48, H04N 7/50 take precedence);;

Abstract

A border generation method in the process of rasterzing vector graph as well as system and making method, and clipping method of vector graph are disclosed. They include: zigzagging the vector graph and obtaining the data of line segment; obtaining the data of terminal points according to the line segment; obtaining the data of boundary points according to the relationship between the terminal points; obtaining the lattice data of boundary points according to the data of boundary points. The arithmetic in the solution is very compact and has high performance; at the same time, the generation of the lattice data of boundary points can synchronize with the generation of the lattice data of the graph itself; It can be combined with a great variety of scanning beam filling arithmetic, obtaining the lattice information of boundary points synchronistically and in high-performance in the processing of rasterzing vector graph, and can improve and control the quality of lattice output accurately.

IPC Classes  ?

• G06T 5/00 - Image enhancement or restoration

Abstract

An apparatus and method using double error line memory to generate image halftone dots are provided, which fit to read and write data simultaneously. The apparatus includes a buffer memory A, a buffer memory B and a memory controller, wherein the memory controller includes a buffer memory A read-write control circuit, a buffer memory B read-write control circuit and a buffer memory selection circuit. The buffer memory selection circuit is used to generate the read or write selection signal for the buffer memory A and the buffer memory B. The buffer memory A read-write control circuit connects to the buffer memory A, for performing the read or write operation to the buffer memory A according to the read-write selection signal, and the buffer memory B read-write control circuit connects to the buffer memory B, for performing the read or write operation to the buffer memory B according to the read-write selection signal. The apparatus and method make the memories fit to perform the read-write operation simultaneously, when the apparatus and method is used to perform error diffusion, the error diffusion speed can be improved.

IPC Classes  ?

• H04N 1/405 - Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

Abstract

A method of digital watermark embedding and extracting and device thereof in the text images of black-and-white binary value are disclosed. The embedding method includes: locating the regions of effective characters in the text image, grouping the regions of effective characters to account the number of black spots in each region, calculating the first pixel number needed to turn off in each character region according to the relative relationship of the number of black spots in each character region of each group, watermark information bit strings, and the first step length, and overturning the pixels in each region according to the first number. The extracting method includes: locating the regions of effective characters in the text image, grouping the regions of effective characters to account the number of black spots in each character region, extracting the embedded watermark information bit strings according to the relative relationship of the number of black spots in the character regions of each group and the first step length. The invention can better resist the attack of printing, scanning and copying, which has good visual effects and a lot of embedded information, and it has the better commonality in the field of digital printing.

IPC Classes  ?

• G06T 1/00 - General purpose image data processing

Abstract

The present invention refers to a method and device for generating multi-site modulating web site simultaneously. The method can simultaneously process multi-neighboring pixels in same row in each time and produces multi-site web point; and meanwhile renews the error accumulation values of multi location of error row. The device of present invention thereof comprises error row memory, error row memory control circuit, error allocation/accumulation register file control circuit, and web point generating circuit. The method and device of present invention can improve the generating speed of modulating web point, and only one read-write operation of error row register is needed during processing the multi-neighboring pixels in each time.

IPC Classes  ?

• H04N 1/405 - Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

Abstract

A grating-type processing method for a transparent page comprises: scanning the transparent page twice, in the first scanning, taking grammatical interpretation to the page description file of the transparent page, dividing the page into areas, and writing primitive object information and transparent parameters generated into the intermediate file; in the second scanning, reading the primitive objects and the transparent parameters in turns from the intermediate file, and assembling the page dot matrix in each area. A grating-type processing device is also disclosed, which includes a grammatical interpretation unit, a dividing unit, a file memory unit and an assembly unit that processing grammatical interpretation, dividing the page into areas, partitioning the transparent page area and non-transparent page area, and grating-type processing according to the type of page area of the transparent page and the non-transparent page and the primitive object information and the transparent parameters, and assembling the page dot matrix in each area.

IPC Classes  ?

• G06F 17/22 - Manipulating or registering by use of codes, e.g. in sequence of text characters

Abstract

A method for generating large edition lattice data is provided, to solve the problem of low efficiency. The method includes: a folding unit confirming large edition parameter and small edition file information, generating large edition information according to the large edition parameter, and sending the large edition information and the small edition file information to a grid image processor; all the small edition file being generated into large edition lattice data according to the large edition information and the small edition file information by the grid image processor. A device for generating large edition lattice data is also provided. According to the device and method, during generating the large edition lattice data, it is not necessary to generate the large edition file comprising all the small edition file, neither need to reassemble the generated small edition lattice, so that the system resource is saved and the processing efficiency is increased.

IPC Classes  ?

• G06F 3/12 - Digital output to print unit
• G06F 17/21 - Text processing
• G06K 15/02 - Arrangements for producing a permanent visual presentation of the output data using printers

Abstract

A raster image process method and device, for solving an issue existed in the current technique that it is unable to distinguish between the white color filled in a raster image when constructing the raster image and the white color in an image object of a page description filled in the raster image afterwards. The method includes: the raster image is constructed and the white color is filled in the raster image; a process of changing a color for the white color in an image object described in a page is carried out, and the image object is filled into the raster image. Thereby the white color filled in the raster image when constructing the raster image and the white color in an image object of a page description filled in the raster image afterwards can be distinguished.

IPC Classes  ?

• G06K 15/22 - Arrangements for producing a permanent visual presentation of the output data using plotters

Abstract

A frequency modulation amplitude modulation mixed net point hierarchy continuous adjustment control method, belongs to a halftone net point generation technical field of an image hard copy field. Based on the available mixed net point generation and net shape controlling etc technologies of multi-bit imaging depth, the method introduces a dithering control algorithm of dynamic hierarchy dividing, and ensures the available FM and AM multi-bit mixed net point technology to have the dynamic adjustment method of hierarchy dividing. Thus the invention resolves net point gradation hierarchy jump which results from that the different hierarchy uses different dynamic net shape controlling means, and exerts effectively hierarchy reproduction effect of multi-bit imaging depth device, and improves quality of halftone mixed net point hierarchy continuous adjustment output and output image of multi-bit depth device.

IPC Classes  ?

• H04N 1/405 - Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

Abstract

A scanning and processing image method belongs to the error diffusion image network suspension technique in the field of image hard copy. Scanning and storing each pixel in current scanline of original image, doing error diffusion process and outputting each stored pixel, then making the ith position of memory free; simultaneity, scanning the next scanline continuously and storing each pixel scanned to the ith position of memory synchronously, until finishing the current scanline process and the next scanline scan.

IPC Classes  ?

• H04N 1/40 - Picture signal circuits
• H04N 1/04 - Scanning arrangements
• H04N 1/21 - Intermediate information storage

Abstract

Amethod and device for embedding digital watermarkinto a text document and detecting it, whichbelongs :o a technical art of document protection.The method and device are accomplished byrepeatedly printing a layer of shading forrecording a mass of watermarkinfromation at the bottom of the normal document idditionally, the shading composed of the grids arranged by a certainrule, the change of the grid's position recording the eachbit string inthe information flow of the watermark.With the method and device, it is possible to increase the amount of the hidden information, wherein the watermarkinformation embedded into the shading svill be diffused along with the document, ifnecessary, it is possible to detect afterthe document is digitized by a scanner.

IPC Classes  ?

• H04N 1/387 - Composing, repositioning or otherwise modifying originals

Abstract

The invention discloses a processing method of FM/AM mixed halftone image on multiple bits imaging depth apparatus, which belongs to halftone dot generating technique in image hard copy field. In the prior art, for output apparatus, controlling technique realization of mixed lattice point multiple bits imaging depth based on error diffusion technique can not break influence due to error diffusion, thus the mixed lattice point output of multiple bits imaging depth can not achieve the requirement of apparatus. The method adopts dynamic controlling algorithm of multiple bits mixed lattice point based on double feedback mixed netting technique of original error diffusion when netting. The method can output multiple bits halftone image of high quality and satiation in gradation from multiple bits imaging depth output apparatus, and resolves effectively output mixed lattice point edge sawtooth phenomena of original one bit depth apparatus, thus it ensures FM/AM mixed lattice point of consecutive gradation output in high resolution effect at low resolution.

IPC Classes  ?

• H04N 1/405 - Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

Abstract

The invention discloses a controlling method of lattice point and lattice point shape of mixed FM/AM on multiple-bit imaging deep apparatus. In the exist art, the reproduction of lattice point shape at different gradation levels is completely based on the error random diffusion theory and is affected by the multiple-bit lattice point dynamic controlling output fashion, therefore, it is difficult to ensure controllability of lattice point shape at a certain gradation level. The invention introduces adjacent direction output gradation dynamic statistic algorithm based on the exist art, thus ensuring controllability of lattice point shape, and resolving randomness of lattice point shape change by reason of randomicity of error diffusion. Adopting the method of the invention, on the basis of exist multiple-bit FM/AM mixed gridding method, and according to request to lattice point of apparatus imaging, characteristic of the multiple-bit imaging apparatus is fully exerted, FM/AM halftone mixed gridding effect of controlled lattice point shape change can be output at low resolutions, the problem of granular sensation of mixed halftone lattice point at actual output is resolved, smooth effect of gradation levels is ensured.

IPC Classes  ?

• H04N 1/405 - Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

Abstract

This invention relates to a method for preventing a copy of document, belonging to a technical field of entire copy protection of document. In the prior art, for some important documents, specially the secret ones, the reproduction of this kind of document is usually prohibited by its owner because of the security. But the technique in the prior art can not solve the problem of preventing unauthorized reproduction. The method of the present invention is intended to embed a shading pattern under the original image of an anti-copy document, detect the marker information hidden in the anti-copy document by an application program installed in the copy device, and decide whether the document can be copied legally or not. By the method of present invention, it is possible to detect the watermark information of the anti-copy document accurately and quickly, and prevent the reproduction of the anti-copy document thoroughly. Moreover, an additional memory space is no need.

IPC Classes  ?

• G06T 1/00 - General purpose image data processing

Abstract

The invention relates to a printing method for the safe document with built-in copying-prevention shading. The prior art needs to use the expensive special paper of the prevented copying shading printing and the freedom of design of the copying-prevention safe shading is low. The invention integrates the module of the copying-prevention safe shading into the printer's drive. The module transfers parameters to the printer drive by the joint function. Then the printer driving program transfers the corresponding function module to create the digital watermark data which contains the copying-prevention safe shading and saves the data to the page descriptive document. It amalgamates the data of the normal printing document and the digital watermark document to create a new document and print. Adopting the invention can implement the coinstantaneous print of the copying-prevention safe shading and the normal document data. The method is applicable for normal paper and improves freedom of design in copying-prevention safe shading.

IPC Classes  ?

• B41M 3/10 - Watermarks