Electrical computers and digital processing systems: support – Computer power control – Having power source monitoring
Patent
1997-12-09
2000-02-15
Sheikh, Ayaz R.
Electrical computers and digital processing systems: support
Computer power control
Having power source monitoring
709224, G06F 100, G06F 1516
Patent
active
060264950
ABSTRACT:
A nonintrusive monitoring system is used to determine the onset and duration times of an electrical power outage-caused down condition of a computer without requiring a pre-power outage polling of a running component of the computer and thereby degrading computer system performance. In response to a supply power outage the monitoring system switches on a battery-powered counter device, representatively a digital counter or a real time clock, and then switches the counter device back off in response to resumption of power supply to the computer. A software portion of the monitoring system then detects the count value of the counter device, and utilizes the count value to compute the onset and duration times of the previous power outage. Using an alternative nonintrusive technique, the monitoring system permits the counter device to run during power supply to the computer, while using the computer system clock to generate periodic time stamps, and disables the counter device during computer supply power outages. Upon resumption of supply power to the computer, the monitoring system compares the time stamp information to the count value to determine the onset and duration times of the previous supply power outage.
REFERENCES:
patent: 4466074 (1984-08-01), Jindrick et al.
patent: 4611289 (1986-09-01), Coppola
patent: 4783755 (1988-11-01), Blanchard et al.
patent: 5123017 (1992-06-01), Simpkins et al.
patent: 5327349 (1994-07-01), Hoste
patent: 5745693 (1998-04-01), Knight et al.
patent: 5790431 (1998-08-01), Ahrens, Jr. et al.
patent: 5825648 (1998-10-01), Karnowski
patent: 5841964 (1998-11-01), Yamaguchi
Cleve Robert Van
Gaudet Rene R.
Lacombe John S.
Yee Peter M.
Compaq Computer Corporation
Pancholi Jigar
Sheikh Ayaz R.
LandOfFree
Nonintrusive monitoring of a computer system's downtime due to 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 Nonintrusive monitoring of a computer system's downtime due to a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonintrusive monitoring of a computer system's downtime due to a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1915510