Memory backup circuit and memory backup method

Details Memory backup circuit and memory backup method Memory backup circuit and memory backup method

1997-11-06

1999-07-27

Nguyen, Viet Q.

Static information storage and retrieval

Powering

Data preservation

365226, 365227, 365228, G11C 700, G06F 1118

Patent

active

059301929

ABSTRACT:
A change over unit 12 is controlled to become conductive only when useful data is stored in a memory 15 for storing data to be processed. Therefore, when a main power supply is shut off, a memory backup function of a backup battery 13 is operated only when useful data is stored in the memory 15, thereby preventing unnecessary backup, which results in preventing the backup battery 13 from unnecessarily discharging and realizing a reliable memory backup.

REFERENCES:
patent: 5157634 (1992-10-01), Dhong et al.
patent: 5186206 (1993-02-01), Jones
patent: 5251179 (1993-10-01), Wittman
patent: 5315549 (1994-05-01), Scherpenberg et al.
patent: 5781780 (1998-07-01), Walsh et al.

Affiliated with

Also associated with

Rating

Memory backup circuit and memory backup method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Memory backup circuit and memory backup method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Memory backup circuit and memory backup method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-887019