Electronic digital logic circuitry – Interface – Logic level shifting
Reexamination Certificate
2007-08-28
2009-06-09
Barnie, Rexford (Department: 2819)
Electronic digital logic circuitry
Interface
Logic level shifting
C326S068000, C326S080000, C326S081000, C327S333000
Reexamination Certificate
active
07545171
ABSTRACT:
An input/output device includes: a level shifter configured to convert an input signal of a first voltage into an output signal of a second voltage; and an output driver configured to operate in response to the output signal. The level shifter is configured to generate the output signal with a predetermined level when the first voltage is interrupted to supply.
REFERENCES:
patent: 6566932 (2003-05-01), Yoon
patent: 6600358 (2003-07-01), Chan
patent: 2002/0153934 (2002-10-01), Yoon
patent: 10-84274 (1998-03-01), None
patent: 2003-17996 (2003-01-01), None
patent: 2002-0080910 (2002-10-01), None
Cho Sung-Hoon
Lee Jae-Young
Barnie Rexford
Mills & Onello LLP
Samsung Electronics Co,. Ltd.
Tran Thienvu V
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