Level conversion circuit and solid-state imaging device...

Details Level conversion circuit and solid-state imaging device... Level conversion circuit and solid-state imaging device...

2011-08-16

2011-08-16

Chang, Daniel D (Department: 2819)

Electronic digital logic circuitry

Interface

Supply voltage level shifting

C326S081000, C326S068000, C327S333000

Reexamination Certificate

active

07999574

ABSTRACT:
According to one embodiment, a level conversion circuit includes an intermediate voltage generating portion to generate an intermediate voltage between a first voltage and a second voltage upon receiving the first voltage and the second voltage higher than the first voltage. A buffer portion operates on the intermediate voltage upon receiving a first signal and an inverted first signal of a first amplitude corresponding to the first voltage. The buffer portion outputs a second signal and an inverted second signal having a second amplitude corresponding to the intermediate voltage. A level shift portion operates on the second voltage upon receiving the second signal and the inverted second signal, and outputs a third signal and an inverted third signal having a third amplitude corresponding to the second voltage.

REFERENCES:
patent: 5502406 (1996-03-01), Traynor et al.
patent: 6642769 (2003-11-01), Chang et al.
patent: 6784719 (2004-08-01), Okamoto et al.
patent: 6940332 (2005-09-01), Yamahira et al.
patent: 7259610 (2007-08-01), Bell et al.
patent: 7388403 (2008-06-01), Yang
patent: 7671655 (2010-03-01), Takenaka et al.
patent: 2002-76882 (2002-03-01), None

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