Rolling-code based process and system

Details Rolling-code based process and system Rolling-code based process and system

2004-12-20

2008-10-28

Holloway, III, Edwin C (Department: 2612)

Communications: electrical

Selective

Intelligence comparison for controlling

C307S010200

Reexamination Certificate

active

07443280

ABSTRACT:
In a rolling-code based process and system for the unambiguous identification of serial numbers in a data communication system, least two subscribers each have an identical serial number set. The process includes a) the first subscriber transmitting a first challenge with respect to a serial number from the serial number set to the second subscriber; b) subscriber responding the second subscriber by a first response corresponding to the first challenge; generating an identification signal for the second subscriber which unambiguously identifies the second subscriber with respect to the first subscriber if the first response corresponds to the serial number expected on the basis of the first challenge of the first subscriber.

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