Abrégé

i) in combination from the detection (4) zone.

Classes IPC  ?

• G08B 13/14 - Déclenchement mécanique par l'enlèvement ou les essais de déplacement d'articles portatifs

Abrégé

A system for recognizing animals in a detection zone (4) wherein the animals are provided with a label (6.i) that responds by transmitting a return signal with information when the label is (6.i) introduced into an electromagnetic interrogation field, provided with at least a transmitting and receiving system (2) for transmitting the electromagnetig interrogation field in the detection zone (4) and for receiving a return signal from a label (6.i) located in the detection zone (4), whereby the transmitting and receiving system (2) is provided with a plurality of antennas (8. i) for receiving a return signal from at least one label (6.i) present in the detection zone (4) wherin the antennas (8.i) are designed and arranged to discretely receive electromagnetic signals which come from mutually different subzones (4.i) wherein the subzones (4.i) in combination from the detection (4) zone.

Classes IPC  ?

• G06K 7/00 - Méthodes ou dispositions pour la lecture de supports d'enregistrement

Abrégé

A transceiver (1) device for responder signals provided by responders of a radio-frequency identification system, comprising a transmitter (2) which generates a transmitter signal on the basis of a crystal oscillator (3) and supplies it to at least one antenna (4) for forming an interrogation field for responders, and a receiving device connected with the at least one antenna for receiving signals generated by a responder, provided with means for reconstructing the original transmitter signal from the antenna signal and with an adding device with a negative input, to which the reconstructed signal is supplied, and a positive input, to which the antenna signal is supplied, wherein the output of the adding device (16) is connected with an AM receiver (17), which provides a responder signal as an output signal, and a method for obtaining a responder signal from an antenna signal of a transceiver device (1).

Classes IPC  ?

• G06K 7/00 - Méthodes ou dispositions pour la lecture de supports d'enregistrement

Abrégé

A motion detector, in particular suitable for animals, comprising at least one motion element, wherein an element movable within a predetermined area is located, which brings about an electrical connection in at least one position, wherein the movable element is a magnetic element, which can move along a path of travel formed by a cavity in the motion element, and wherein, near the path of travel, at least one magnetically sensitive switching element is placed, which can be influenced by the magnetic element.

Classes IPC  ?

• G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
• G01D 5/16 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier la résistance
• G01D 5/251 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensible; Moyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminé; Transducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques sélectionnant un ou plusieurs conducteurs ou circuits parmi un certain nombre de conducteurs ou circuits, p.ex. en fermant des contacts un conducteur ou circuit
• A61D 17/00 - Dispositifs pour signaler des troubles pendant que l'animal est en travail

Abrégé

A system for locating at least one animal in a predetermined area, provided with at least one label which is designed to be attached to or in the at least one animal, which label is provided with a transmitter for transmitting an ultra wide band signal, at least one receiver which is placed in or adjacent the area and which is designed to receive the ultra wide band signal of the transmitter of the at least one label, and a signal processing device which is connected to or integrated with the at least one receiver for locating the at least one label on the basis of the ultra wide band signal received by the at least one receiver on the basis of, for instance, delay time and/or reception angle.

Classes IPC  ?

• G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques