Communication method in RFID or remote sensor systems

Communications: electrical – Selective – Interrogation response

Reexamination Certificate

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Details

C340S010100, C340S010300, C340S010400, C340S572100

Reexamination Certificate

active

08054162

ABSTRACT:
A method for communicating between a control unit and a plurality of remote units located in the response area of the control unit is provided. The remote units are prompted to transmit a data sequence to the control unit upon receipt of a command sent by the control unit. The control unit transmits a control signal to the remote units substantially simultaneously with the transmission of the data sequence as a function of a communication state, such as the absence of a transmission of the data sequence by at least one remote unit or an at least partially simultaneous transmission of the data sequence by more than one remote unit. In this way, communication methods can be shortened, in particular in terms of time, without adversely affecting communication reliability.

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Klaus Finkenzeller, “RFID-Handbuch”; Hanser 2002, 3rdedition, pp. 203-224; ISBN 3-446-22071-2; sections 7.2.4.1 and 7.2.4.2. (including an English version of the translated sections, which were translated in “RFID Handbook: Fundamentals and Applications in Contactless Smart Cards and Identification,” Wiley, 2ndedition, pp. 206-211; ISBN 0-470-84402-7).

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