Pixart Imaging Inc.

Taïwan, Province de Chine

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Classe IPC
G06F 3/041 - Numériseurs, p.ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction 1
G06F 3/042 - Numériseurs, p.ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens opto-électroniques 1
G06K 9/62 - Méthodes ou dispositions pour la reconnaissance utilisant des moyens électroniques 1
G09G 5/08 - Circuits de curseurs 1
Résultats pour  brevets

1.

GESTURE RECOGNITION METHOD AND TOUCH SYSTEM INCORPORATING THE SAME

      
Numéro de document 02481396
Statut Délivré - en vigueur
Date de dépôt 2004-09-13
Date de disponibilité au public 2005-03-16
Date d'octroi 2011-05-10
Propriétaire PIXART IMAGING INC. (Taïwan, Province de Chine)
Inventeur(s)
  • Hill, Douglas B.
  • Morrison, Gerald D.

Abrégé

A gesture recognition method includes detecting multiple pointers in close proximity to a touch surface to determine if the multiple pointers are being used to perform a known gesture. When the multiple pointers are being used to perform a known gesture, a command associated with the gesture is executed. A touch system incorporating the gesture recognition method is also provided.

Classes IPC  ?

  • G06K 9/62 - Méthodes ou dispositions pour la reconnaissance utilisant des moyens électroniques
  • G06F 3/042 - Numériseurs, p.ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens opto-électroniques

2.

AUTO-ALIGNING TOUCH SYSTEM AND METHOD

      
Numéro de document 02521418
Statut Délivré - en vigueur
Date de dépôt 2004-04-06
Date de disponibilité au public 2004-10-21
Date d'octroi 2013-09-10
Propriétaire PIXART IMAGING INC. (Taïwan, Province de Chine)
Inventeur(s) Morrison, Gerald D.

Abrégé

A touch system (10, 150, 250) includes a touch surface (60, 160, 260) on which an image is displayed and at least one camera (66, 170, 266) acquiring images of the touch surface. A pointer contact data generator generates pointer position data in response to pointer contact with the touch surface. The pointer position data represents the location of the pointer on the touch surface where pointer contact is made. A processor (56, 156, 256) communicates with the at least one camera and the pointer contact data generator. The processor uses known points in the displayed images to calibrate automatically co-ordinate systems of the touch system, and uses calibrated pointer position data to update image data that is used to present the displayed image on the touch surface. In one embodiment, the touch system includes an active touch sensitive screen (252). In another embodiment, image data generated by a pair of cameras (66) having overlapping fields of view is used by the pointer contact data generator to generate the pointer position data when a pointer is acquired in images captured by the pair of cameras.

Classes IPC  ?

  • G06F 3/041 - Numériseurs, p.ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction

3.

COMPUTER PRESENTATION SYSTEM AND METHOD WITH OPTICAL TRACKING OF WIRELESS POINTER

      
Numéro de document 02378154
Statut Délivré - en vigueur
Date de dépôt 2000-06-21
Date de disponibilité au public 2001-01-11
Date d'octroi 2012-09-18
Propriétaire PIXART IMAGING INC. (Taïwan, Province de Chine)
Inventeur(s) Hansen, Karl C.

Abrégé

A method for remotely controlling a computer (10) having an associated screen (16) for displaying output from the computer (10) and having an internal cursor (26) generated by the computer (10) includes at least detecting one property of an external cursor (22). In one embodiment, the invention includes a computer (10) connected to a projector (12), which projects an image of the computer (10) onto an external screen (16). A camera (14) is used to capture the image of the projected computer output. An optical pointer (24), such as a laser pointer, is used to generate and transmit an external cursor (22) having various properties, such as color, shape, or intensity. The image captured by the camera (14) is used to detect and process at least one property of the external cursor (22) to generate a corresponding command or commands to control the computer (10). Commands may be used to emulate control of the computer (10) typically provided by a pointing device such as a mouse or track ball.

Classes IPC  ?