Computer system with a back-up power supply

Details Computer system with a back-up power supply Computer system with a back-up power supply

1984-06-01

1987-04-14

Shaw, Gareth D.

Boots, shoes, and leggings

365229, 371 66, G06F 1108, G06F 100

Patent

active

046583521

ABSTRACT:
A computer system having a back-up power supply for preserving the contents of a memory during a power down mode where the power current is supplied from the back-up power supply, is characterized by writing a check data in a predetermined area of the memory and discriminating between a reset operation after a normal throw-in of the power current and a reset operation after recovering from the power down mode, by detecting the contents of the check data upon starting of the reset operation of the central processing unit of the computer system, whereby eliminating a discrimination circuit conventionally equipped to computer systems for the discrimination between the reset operations.

REFERENCES:
patent: 4143283 (1979-03-01), Graf et al.
patent: 4251883 (1981-02-01), Grants et al.
patent: 4307455 (1981-12-01), Juhasz et al.
patent: 4327298 (1982-04-01), Burgin
patent: 4393500 (1983-07-01), Imazeki et al.
patent: 4402057 (1983-08-01), Itou et al.
patent: 4422163 (1983-12-01), Oldenkamp
patent: 4458307 (1984-07-01), McAnlis et al.
patent: 4580248 (1986-04-01), Imaizumi

Affiliated with

Also associated with

Rating

Computer system with a back-up power supply 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 with a back-up power supply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Computer system with a back-up power supply will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1789938