Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2006-12-26
2006-12-26
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S211000, C345S213000
Reexamination Certificate
active
07154491
ABSTRACT:
In power source control method and a control circuit thereof and an image forming apparatus having the control circuit: when a logic circuit voltage detecting circuit (voltage detecting means) detects a voltage drop of a power source of a power voltage (logic circuit power source), a residual charge of a logic circuit power source is forcibly discharged by a power source control circuit (voltage control means), whereby a drive circuit voltage can be caused to attenuate faster than the fall of the power source of the power voltage (logic circuit power source) of the power source unit, thereby preventing damage to an image forming apparatus.
REFERENCES:
patent: 5465054 (1995-11-01), Erhart
patent: 5510814 (1996-04-01), Ise
patent: 5604449 (1997-02-01), Erhart et al.
patent: 5648799 (1997-07-01), Kikinis
patent: 5712692 (1998-01-01), Kanagawa et al.
patent: 5969512 (1999-10-01), Matsuyama
patent: 6064360 (2000-05-01), Sakaedani et al.
patent: 6166726 (2000-12-01), Uchida et al.
patent: 6741239 (2004-05-01), Iwasaki
patent: 11-219147 (1999-08-01), None
patent: 11-282427 (1999-10-01), None
Hjerpe Richard
Nguyen Kimnhung
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