Radio frequency identification reader having a signal...

H - Electricity – 04 – B

Patent

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Details

H04B 1/52 (2006.01) G06K 7/00 (2006.01)

Patent

CA 2664607

A method, system and apparatus for generating a cancellation signal in a RFID reader to isolate a transmit section and a receive section of a RFID reader, where the RFID reader generates a local reference signal from a broadcast transmit signal, receives a receive signal from a remote device, determines at least one correction factor, e.g., an amplitude correction factor, to generate a cancellation signal. The method, system and apparatus can further include combining a cancellation signal and a receive signal to minimize or cancel out interference and noise on the receive signal.

L'invention concerne un procédé, un système et un appareil pour générer un signal d'annulation dans un lecteur RFID afin d'isoler une partie émission et une partie réception de lecteur RFID. Ledit lecteur RFID génère un signal de référence local à partir d'un signal d'émission de diffusion, reçoit un signal de réception provenant d'un dispositif distant, et détermine au moins un facteur de correction, par exemple, un facteur de correction d'amplitude pour générer un signal d'annulation. Le procédé, le système et l'appareil peuvent également comprendre une combinaison d'un signal d'annulation et d'un signal de réception pour limiter ou supprimer une interférence et un bruit sur le signal reçu.

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