Computer system which is operative to change from a normal opera

Details Computer system which is operative to change from a normal opera Computer system which is operative to change from a normal opera

1996-04-29

1998-05-05

Ray, Gopal C.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

39575006, 39575008, 307 66, 365229, G06F 130, G06F 132

Patent

active

057489726

ABSTRACT:
Described is a personal computer system which includes a central processing unit (CPU) and power management circuitry (PMC) in circuit communication with the CPU. A switch is coupled to the PMC. A power supply is coupled to the CPU, PMC and the switch and includes circuitry for selectively providing system power to the computer system and auxiliary power to the PMC (1) from an external source or (2) from an internal source. When the system is in a normal operating state and the external source stops providing power at a predetermined level (e.g., blackout or brownout) to the power supply, the power supply is operative to change to its internal power and generate a control signal to the switch. The control signal causes the switch to activate a closure event and generate another control signal. In response to the activation of the latter control signal, the power management circuitry is operative to cause the system to change to the suspend state wherein the entire state of the system is safely saved to a non-volatile storage device.

REFERENCES:
patent: 4600990 (1986-07-01), Gershenson et al.
patent: 4698808 (1987-10-01), Ishii
patent: 4956563 (1990-09-01), Schornack
patent: 5210685 (1993-05-01), Rosa
patent: 5237698 (1993-08-01), Ohmae
patent: 5241680 (1993-08-01), Cole et al.
patent: 5295258 (1994-03-01), Jewett et al.
patent: 5317752 (1994-05-01), Jewett et al.
patent: 5327553 (1994-07-01), Jewett et al.
patent: 5341503 (1994-08-01), Gladstein et al.
patent: 5386552 (1995-01-01), Garney
patent: 5396637 (1995-03-01), Harwell et al.
patent: 5446904 (1995-08-01), Belt et al.
patent: 5450003 (1995-09-01), Cheon
patent: 5485623 (1996-01-01), Kurokawa et al.
IBM TDB: (Aug. 1993) pp. 607-612.
Abstract for DE 43 37 055 and DE 43 40 069.

Affiliated with

Also associated with

Rating

Computer system which is operative to change from a normal opera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Computer system which is operative to change from a normal opera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Computer system which is operative to change from a normal opera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-70190