Shift register circuit and pull high element thereof

Details Shift register circuit and pull high element thereof Shift register circuit and pull high element thereof

2007-05-02

2009-08-11

Lam, Tuan (Department: 2816)

Electrical pulse counters, pulse dividers, or shift registers: c

Shift register

C377S068000, C377S069000, C377S070000

Reexamination Certificate

active

07573971

ABSTRACT:
A shift register circuit has a plurality of shift registers connected in series, each shift register having a phase-shifting element and a pull-high element, wherein the phase-shifting element receives a first input signal, a first clock signal and a second clock signal, and the first clock signal and the second clock signal are complementary in phase. The pull-high element is used for pulling up an output signal to a high logic level, and includes a logic unit, wherein no current path is established in the pull-high element when the shift register is operated in any type of periods.

REFERENCES:
patent: 6339631 (2002-01-01), Yeo et al.
patent: 7027550 (2006-04-01), Lin
patent: 2005/0220263 (2005-10-01), Moon

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