Method for data transmission in RFID or remote sensor systems

Details Method for data transmission in RFID or remote sensor systems Method for data transmission in RFID or remote sensor systems

2005-03-17

2010-06-08

Zimmerman, Brian A (Department: 2612)

Communications: electrical

Selective

Interrogation response

C340S010100

Reexamination Certificate

active

07733217

ABSTRACT:
A method and apparatus for transmitting data in a radio frequency identification system, which includes a reader and at least one transponder, is provided. The reader transmits data sequences to the transponder including at least command data, associated check data, and a subsequent return link header data. Upon receiving unrecognized command data and/or unsupported parameter and address data the transponder notifies the reader of this condition. The notification takes place at times when the reader transmits end signals indicating an end of a data sequence, transmits an optional parameter and address data, or transmits the return link header data. Thus, communication between the reader and other transponders is not disrupted when a transponder cannot execute a command.

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