Electrical computers and digital processing systems: support – Computer power control
Reexamination Certificate
2011-04-05
2011-04-05
Elamin, Abdelmoniem (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
C327S108000, C327S456000, C327S538000, C257S532000, C361S093900, C702S113000
Reexamination Certificate
active
07921311
ABSTRACT:
An authentication device or other type of low-power hand-held device comprises a processor, an external button alternately configurable in an unpressed state and a pressed state, and current drain mitigation circuitry coupled to the external button and a corresponding input of the processor. The current drain mitigation circuitry is configured to connect the input of the processor to a first potential when the external button is in the unpressed state and to connect the input of the processor to a second potential different than the first potential when the external button is in the pressed state, thereby limiting current drain arising from the external button being stuck in the pressed state.
REFERENCES:
patent: 4665710 (1987-05-01), Kyzer et al.
patent: 4720860 (1988-01-01), Weiss
patent: 5168520 (1992-12-01), Weiss
patent: 5361062 (1994-11-01), Weiss et al.
patent: 6600238 (2003-07-01), Emberty et al.
patent: 6826463 (2004-11-01), Nakamura
patent: 7712341 (2010-05-01), Johansson et al.
patent: 2003/0154008 (2003-08-01), Nakamura
patent: 2008/0060393 (2008-03-01), Johansson et al.
U.S. Appl. No. 11/766,301 filed in the name of M. Ciaffi et al. Jun. 21, 2007 and entitled “Reset-Tolerant Authentication Device”.
U.S. Appl. No. 11/671,264 filed in the name of D.V. Bailey et al. Feb. 5, 2007 and entitled “Wireless Authentication Methods and Apparatus”.
U.S. Appl. No. 11/530,655 filed in the name D.V. Bailey et al. Sep. 11, 2006 and entitled “Tokencode Exchanges for Peripheral Authentication”.
Ciaffi Marco
Rabinowitz Larnie
Wilder Daniel
Elamin Abdelmoniem
EMC Corporation
Ryan & Mason & Lewis, LLP
LandOfFree
Method and apparatus for mitigating current drain in a... 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 apparatus for mitigating current drain in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for mitigating current drain in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2632592