Communications: electrical – Selective – Interrogation response
Reexamination Certificate
2011-07-05
2011-07-05
Brown, Vernal U (Department: 2612)
Communications: electrical
Selective
Interrogation response
C340S012100, C340S003200
Reexamination Certificate
active
07973643
ABSTRACT:
RFID readers transmit data to query tags at one or more data rates. Before transmitting data, the RFID readers also transmit special preambles that inform of the data rate that will be used for transmitting the data. The preambles have a call aspect and a rate aspect. The rate aspect has a feature substantially determined from a rate selected for transmitting the data. The feature may encode the rate indirectly or explicitly. The call aspect may be implemented by call transitions that define a timing, whose duration is independent of the selected rate. The duration may be advantageously set according to an assumed state of the RFID tag bandwidth filter. Therefore an RFID tag may use the call aspect of the preamble to prepare itself for receiving data, and the rate aspect to determine its rate of transmission for setting its filter bandwidth accordingly.
REFERENCES:
patent: 4701755 (1987-10-01), Nakagawa et al.
patent: 4783783 (1988-11-01), Nagai et al.
patent: 4935702 (1990-06-01), Mead et al.
patent: 5164942 (1992-11-01), Kamerman et al.
patent: 5307515 (1994-04-01), Kuo et al.
patent: 5491484 (1996-02-01), Schuermann
patent: 5640151 (1997-06-01), Reis et al.
patent: 5686902 (1997-11-01), Reis et al.
patent: 5805632 (1998-09-01), Leger
patent: 5933039 (1999-08-01), Hui et al.
patent: 5939945 (1999-08-01), Thewes et al.
patent: 5952922 (1999-09-01), Shober
patent: 5952935 (1999-09-01), Mejia et al.
patent: 6130632 (2000-10-01), Opris
patent: 6134182 (2000-10-01), Pilo
patent: 6147591 (2000-11-01), Stobbe et al.
patent: 6177861 (2001-01-01), MacLellan et al.
patent: 6208235 (2001-03-01), Trontelj
patent: 6266362 (2001-07-01), Tuttle et al.
patent: 6317027 (2001-11-01), Watkins
patent: 6320788 (2001-11-01), Sansbury et al.
patent: 6357025 (2002-03-01), Tuttle
patent: 6603391 (2003-08-01), Greeff et al.
patent: 6617962 (2003-09-01), Horwitz et al.
patent: 6765484 (2004-07-01), Eagleson et al.
patent: 6831562 (2004-12-01), Rodgers et al.
patent: 6963270 (2005-11-01), Gallagher et al.
patent: 7005965 (2006-02-01), Chen et al.
patent: 7039412 (2006-05-01), Sandhu et al.
patent: 7044387 (2006-05-01), Becker et al.
patent: 7183926 (2007-02-01), Diorio et al.
patent: 7215976 (2007-05-01), Brideglall
patent: 7356316 (2008-04-01), Ogiso et al.
patent: 2001/0010491 (2001-08-01), Marneweck et al.
patent: 2002/0153996 (2002-10-01), Chan et al.
patent: 2002/0167405 (2002-11-01), Shanks et al.
patent: 2004/0174244 (2004-09-01), Eidemiller
patent: 2005/0025187 (2005-02-01), Li et al.
patent: 2005/0052279 (2005-03-01), Bridgelall
patent: 2005/0104790 (2005-05-01), Duron
patent: 2005/0128159 (2005-06-01), Wang et al.
patent: 0 298 618 (1989-01-01), None
patent: 0 681 192 (1995-11-01), None
patent: 0 696 852 (1996-02-01), None
patent: 0 715 417 (1996-06-01), None
patent: 0 939 496 (1999-09-01), None
patent: 01 73854 (2001-10-01), None
Invitation to Pay Additional Fees (Partial International Search), Application No. PCT/US 03/31792, date of mailing Apr. 22, 2004.
Carley, L. Richard, “Trimming Analog Circuits Using Floating-Gate Analog MOS Memory”, IEEE Journal of Solid-State Circuits, vol. 24, No. 6, Dec. 1989, pp. 1569-1575.
Jonietz, Erika, “Tracking Privacy”, Technology Review, Jul./Aug. 2004, pp. 74-75.
Raszka et al., “Embedded Flash Memory for Security Applications in a 0.13 μ m CMOS Logic Process”, Digest of Technical Papers, IEEE International Solid-State Circuits Conference 2004, p. 46.
Weis, Stephen A., et al., Security and Privacy Aspects of Low-Cost Radio Frequency Identification Systems, Laboratory for Computer Science, Auto-ID Center, Massachusetts Institute of Technology, pp. 1-12.
Yoshida, Junko, “RFID “kill” Feature Aims to Soothe Privacy Fears”, EE Times, Apr. 28, 2003, pp. 1, 86.
International Search Report, for International Application No. PCT/US2005/012490, date mailed Jul. 25, 2005.
Written Opinion of the International Preliminary Examining Authority for International Application No. PCT/US05/12490, date of mailing Jun. 27, 2006.
Diorio Christopher J.
Hyde John D.
Brown Vernal U
Impinj, Inc.
Turk IP Law, LLC
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