Causing RFID tags to reply using changed reply timing

Details Causing RFID tags to reply using changed reply timing Causing RFID tags to reply using changed reply timing

2008-02-21

2011-12-06

Zimmerman, Brian (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S010100, C340S010200

Reexamination Certificate

active

08072327

ABSTRACT:
RFID reader systems, readers, components, software and methods cause RFID tags to reply using changed reply timing. In a number of embodiments, this timing change is achieved by causing a custom timing command to be transmitted to a tag. In some embodiments, the changed reply timing affects an amount of delay before a tag backscatters a reply.

REFERENCES:
patent: 7009495 (2006-03-01), Hughes et al.
patent: 7277016 (2007-10-01), Moskowitz et al.
patent: 7562083 (2009-07-01), Smith et al.
patent: 7716160 (2010-05-01), Smith et al.
patent: 7716208 (2010-05-01), Smith et al.
patent: 2004/0046645 (2004-03-01), Atkins et al.
patent: 2004/0066281 (2004-04-01), Hughes et al.
patent: 2005/0083178 (2005-04-01), Friedrich
patent: 2005/0231327 (2005-10-01), Friedrich et al.
patent: 2005/0242927 (2005-11-01), Friedrich
patent: 2006/0044114 (2006-03-01), Friedrich et al.
patent: 2006/0117066 (2006-06-01), Smith et al.
patent: 2006/0143163 (2006-06-01), Smith et al.
patent: 2007/0069866 (2007-03-01), Schuessler et al.
patent: 2007/0075838 (2007-04-01), Powell
patent: 2007/0164851 (2007-07-01), Cooper
patent: 2007/0285250 (2007-12-01), Moskowitz et al.
patent: 2008/0061941 (2008-03-01), Fischer et al.
patent: 2008/0111661 (2008-05-01), Lin et al.
patent: 2008/0180221 (2008-07-01), Tuttle
Specification for RFID Air Interface: EPC™ Radio-Frequency Identity Protocols Class-1 Generation-2 UHF RFID Protocol for Communications at 860 MHz-960 MHz Version 1.1.0. 2004-2006 EPCglobal, Inc. Dec. 17, 2005: 1-100.
Smart Card Alliance Identity Council. “Countless Smart Cards vs. EPC Gen 2 RFID Tags: Frequently Asked Questions.” Smart Card Alliance (2006). Jul. 2006: 1-6.
EPCGlobal, Inc “Specification of RFID Air Interface-EPC Radio-Frequency Identity Protocols Class-1 Generation-2 UHF RFID Protocol for Communications at 860 MHz-960 MHz, Version 1.1.0.” (a.k.a. “The Gen 2 Spec”) EPCglobal Inc. Dec. 17, 2005, http://www.

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