Electronic digital logic circuitry – Interface – Logic level shifting
Reexamination Certificate
2006-04-25
2006-04-25
Cho, James H. (Department: 2819)
Electronic digital logic circuitry
Interface
Logic level shifting
C326S081000
Reexamination Certificate
active
07034573
ABSTRACT:
A level shifter has a current mirror and a set of oppositely driven NMOS switch. A voltage holding module is added to help an output of the level shifter to work with a full-swing fashion. Additionally, a DC current switch is used to eliminate a DC current.
REFERENCES:
patent: 5469080 (1995-11-01), Son
patent: 5675278 (1997-10-01), Tanaka et al.
patent: 5914617 (1999-06-01), Bartlett
patent: 6480050 (2002-11-01), Barnes
patent: 2004/0061525 (2004-04-01), Tamaki
Cho James H.
Hsu Winston
Infineon-Admtek Co., Ltd.
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