real time clock charging circuit

Details real time clock charging circuit real time clock charging circuit

2006-10-31

2006-10-31

Miska, Vit W. (Department: 2841)

Horology: time measuring systems or devices

Power supply details

Electrical

C320S134000, C323S282000, C713S340000

Reexamination Certificate

active

07130248

ABSTRACT:
The present invention is to provide a real time clock charging circuit mounted on a circuit board, which comprising an booting power input terminal adapted to receive a booting power passed through a first control module to a power storage unit and a second control module; the power storage unit adapted to store the booting power and to output a spare power prohibited from flowing into the first control module and the spare power only flows into the second control module as receiving no input power; a standby power input terminal adapted to receive a standby power to the second control module enabling to output those power to the real time clock and avoiding them to transmit outside.

REFERENCES:
patent: 3861134 (1975-01-01), Chacon et al.
patent: 5834857 (1998-11-01), Abe et al.
patent: 5905365 (1999-05-01), Yeh
patent: 6177780 (2001-01-01), Roy et al.
patent: 6459235 (2002-10-01), Odeohhara et al.
patent: 6603365 (2003-08-01), Dotzler et al.
patent: 2003/0085621 (2003-05-01), Potega
patent: 2005/0001594 (2005-01-01), Felder
patent: 2005/0253559 (2005-11-01), Felder
patent: 2006/0082351 (2006-04-01), Martins et al.

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