Electrical computers and digital processing systems: support – Computer power control – Power conservation
Reexamination Certificate
2005-10-18
2005-10-18
Browne, Lynne H. (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
Power conservation
C713S300000, C713S323000, C713S324000
Reexamination Certificate
active
06957354
ABSTRACT:
A CMOS circuit for low leakage battery operation connects the real time clock to the power supply when available or to a low leakage source when the power supply is not available.
REFERENCES:
patent: 5543734 (1996-08-01), Volk et al.
patent: 5838171 (1998-11-01), Davis
patent: 5883423 (1999-03-01), Patwa et al.
patent: 5886550 (1999-03-01), Kwon et al.
patent: 5909140 (1999-06-01), Choi
patent: 5917365 (1999-06-01), Houston
patent: 6191470 (2001-02-01), Forbes et al.
patent: 6307233 (2001-10-01), Awaka et al.
patent: 6373321 (2002-04-01), Yamauchi et al.
patent: 6380798 (2002-04-01), Mizuno et al.
patent: 6611918 (2003-08-01), Uzelac
patent: 6715090 (2004-03-01), Totsuka et al.
patent: 2004/0158756 (2004-08-01), Tosuka et al.
patent: 10189884 (1998-07-01), None
patent: 10-1998-0004940 (1998-03-01), None
patent: 10-1999-0078182 (1999-10-01), None
Anonymous,Diode Battery Back-Up Switch, IBM Technical Disclosure Bulletin, vol. 30, No. 2, Jul. 1, 1987, p. 895.
Muhammad M: Khellah and M.I. Emasry,Power Minimization of High-Performance Submicron CMOS Circuits Using a Dual-Vd Dual-Vth(DVDV)Approach, Proceedings 1999 International Symposium on Low Power Electronics and Design, Aug. 1999, ACM, pp. 106-108.
K. Roy, Leakage power reduction in low-voltage CMOS designs, Electronics, Circuits and Systems, 1998 IEEE International Conference, vol. 2, 1998, pp. 167-173.
Office Action received in Korean Patent Application No. 10/2002/7008020.
Office Action received in Chinese Patent Application No. 00817542.X.
International Preliminary Examination Report received in PCT/US00/42597.
International Search Report received in PCT/US00/42597.
Uzelac Lawrence S.
Volk Andrew M.
Browne Lynne H.
Fish & Richardson P.C.
Trujillo James K.
LandOfFree
Method and apparatus for reducing sub-threshold off current... 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 reducing sub-threshold off current..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reducing sub-threshold off current... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3459073