Level shifter, level shift circuit, electro-optical device,...

Details Level shifter, level shift circuit, electro-optical device,... Level shifter, level shift circuit, electro-optical device,...

2006-11-14

2006-11-14

Nguyen, Van Thu (Department: 2824)

Static information storage and retrieval

Read/write circuit

Including level shift or pull-up circuit

C365S189020, C365S189050, C365S189120

Reexamination Certificate

active

07136311

ABSTRACT:
To provide a level shift circuit which has reduced power consumption. A level shift circuit includes level shifters and a control unit. The control unit generates control signals for controlling operation states of the level shifters, respectively. The control unit has an R memory Mr1,a G memory Mg1,and a B memory Mb1.The G memory Mg1has a stored content which is set to an operation permission state by means of a low-amplitude selection signal RSEL and which is reset to an operation inhibition state by means of a low-amplitude selection signal BSEL. During a period from the time when the low-amplitude selection signal BSEL becomes active up to the time when the low-amplitude selection signal RSEL becomes active, the operation of the level shifter stops. As a result, power consumption decreases.

REFERENCES:
patent: 6233188 (2001-05-01), Kai
patent: 6498761 (2002-12-01), Banba et al.
patent: 2003/0001616 (2003-01-01), Fujikawa et al.
patent: 2004/0125102 (2004-07-01), Sato et al.
patent: A 11-220380 (1999-08-01), None
patent: A 2003-110419 (2003-04-01), None
patent: A 2003-110420 (2003-04-01), None
patent: A 2004-205957 (2004-07-01), None

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