Bidirectional shift register

Details Bidirectional shift register Bidirectional shift register

2010-07-20

2011-10-25

Lam, Tuan T (Department: 2816)

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

Shift register

C377S069000

Reexamination Certificate

active

08045675

ABSTRACT:
A bi-directional shift register includes N stages, wherein the mthstage among the N stages includes a node, an output end, first input circuit, second input circuit, and a shift register unit. N is a natural number greater than 1 and m is a natural number smaller than or equal to N. First control signal is measured on the node. The output end outputs an mthoutput signal. The first input circuit receives an m−1thoutput signal as a control signal and a power signal to accordingly generate an enabled first driving signal to the node in first period. The second input circuit receives an m+1thoutput signal as a control signal and a power signal to accordingly generate an enabled second driving signal to the node in second period. Controlled by the first control signal, the shift register unit generates an mthoutput signal in third period.

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patent: 2009/0041177 (2009-02-01), Chien et al.
patent: 2010/0150301 (2010-06-01), Chan et al.

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