Communications: electrical – Selective – Interrogation response
Reexamination Certificate
2003-09-15
2008-09-23
Zimmerman?, Brian (Department: 2612)
Communications: electrical
Selective
Interrogation response
C340S010100, C340S010510, C340S010520
Reexamination Certificate
active
07427912
ABSTRACT:
The present invention assures the integrity of state information retained by a Radio Frequency Transponder during a loss of power. During the regular operation of the Transponder power is provided to a voltage-storing device powering an information retention mechanism of the Transponder. After the loss and reestablishing of power to the Transponder but before the Transponder is restarted, the voltage-storing device is checked to determine whether sufficient power is present in the information retention mechanism to retain information without corruption. If sufficient power is present, a signal to indicate that fact is communicated to the Transponder and the stored information is restored. The Transponder is then restarted.
REFERENCES:
patent: 4674618 (1987-06-01), Eglise et al.
patent: 4724427 (1988-02-01), Carroll
patent: 4955038 (1990-09-01), Lee et al.
patent: 5053774 (1991-10-01), Schuermann et al.
patent: 5214409 (1993-05-01), Beigel
patent: 5283529 (1994-02-01), Meier
patent: 5287112 (1994-02-01), Schuermann
patent: 5365551 (1994-11-01), Snodgrass et al.
patent: 5410315 (1995-04-01), Huber
patent: 5489908 (1996-02-01), Orthmann et al.
patent: 5515053 (1996-05-01), Hecht et al.
patent: 5517194 (1996-05-01), Carroll et al.
patent: 5521602 (1996-05-01), Carroll et al.
patent: 5525992 (1996-06-01), Froschermeier
patent: 5528221 (1996-06-01), Jeuch et al.
patent: 5537105 (1996-07-01), Marsh et al.
patent: 5550547 (1996-08-01), Chan et al.
patent: 5602538 (1997-02-01), Orthmann et al.
patent: 5686902 (1997-11-01), Reis et al.
patent: 5712630 (1998-01-01), Nanboku et al.
patent: 5787174 (1998-07-01), Tuttle
patent: 5850181 (1998-12-01), Heinrich et al.
patent: 5889489 (1999-03-01), Friedman et al.
patent: 6157321 (2000-12-01), Ricci
patent: 6173899 (2001-01-01), Rozin
patent: 6198381 (2001-03-01), Turner et al.
patent: 6201731 (2001-03-01), Kamp et al.
patent: 6204765 (2001-03-01), Brady et al.
patent: 6288629 (2001-09-01), Cofino et al.
patent: 6404325 (2002-06-01), Heinrich et al.
patent: 6812841 (2004-11-01), Heinrich et al.
patent: 6942155 (2005-09-01), Stewart et al.
patent: 0 733 988 (1996-09-01), None
patent: 2 333 495 (1999-07-01), None
patent: 09 135481 (1997-05-01), None
patent: WO 01/65712 (2001-09-01), None
D. Friedman, H. Heinrich, D-W. Duan, “A Low-Power CMOS Integrated Circuit for Field-Powered Radio Frequency Identification Tags”, Digest of Technical Papers of the 1997 IEEE International Solid-State Circuits Conference, San Francisco, CA, Feb. 8, 1997, pp. 294, 295 and 474, ISSCC97/ Session 17/ TD: LowPower/ Low-Voltage Circuits/ Paper SA 17.5.
FinkenZeller, Klaus “The RFID Handbook”, 1999, p. 172.
Kang, Sung-Mo & Leblebici, Yusuf “CMOS Digital Integrated Circuits, Analysis and Design”, 1999, pp. 442-443.
Haldun Haznedar “Digital Microelectronics”, 1991, pp. 444-446.
Chatterjee, P.K., et al. “A Survey of High-Density Dynamic RAM Cell Concepts,” ED-26 IEEE Transactions on Electron Devices, Jun. 1979, pp. 827-839.
Taub, Herbert & Schilling, Donald “Digital Integrated Electronics”, 1977, p. 46.
Demassa, Thomas A. “Electrical and Electronic Devices, Circuits, and Instruments”, 1989, p. 46.
Ali Mazidi, Muhammad & Gillispie-Mazidi, Janice, “Assembly Language, Design and Interfacing”, 1998, p. 238.
Friedman Daniel J.
Heinrich Harley Kent
Intermec IP Corp.
Maltseff Paul A.
Nguyen Nam V
Sherman John H.
Zimmerman? Brian
LandOfFree
Method and system for storage and recovery of vital... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for storage and recovery of vital..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for storage and recovery of vital... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3980097