Microcomputer comprising electric power source without...

Details Microcomputer comprising electric power source without... Microcomputer comprising electric power source without...

2005-05-24

2005-05-24

Perveen, Rehana (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S321000, C713S324000

Reexamination Certificate

active

06898719

ABSTRACT:
A microcomputer comprises: a first electric power source VDD1 to which a condenser30used for backup is added; a second electric power source VDD2to which the condenser30used for backup is not added; and a resistance load40added to the second electric power source. When a supply of voltage of the second electric power source VDD2is stopped, a level of the second electric power source VDD2is changed from a high level to a low level, and when the supply of voltage of the second electric power source VDD2is resumed, the level of the second electric power source VDD2is returned from the low level to the high level.

REFERENCES:
patent: 5128863 (1992-07-01), Nakamura et al.
patent: 5720560 (1998-02-01), Nozawa
patent: 5938770 (1999-08-01), Kim
patent: 6107857 (2000-08-01), Orisaka et al.
patent: 6351109 (2002-02-01), Yoshida

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