Bidirectional shift register
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United States of America Patent
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Apr 29, 2008
Grant Date -
Mar 1, 2007
app pub date -
Jun 22, 2006
filing date -
Aug 30, 2005
priority date (Note) -
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Abstract
A bidirectional shift register includes a former stage multiplexer, a latter stage multiplexer, a former stage full-swing shift register, and a latter stage full-swing shift register, all of which have a plurality of registers all of the same type. The former and the latter stage multiplexers output signals according to a forward clock, a backward clock, a forward control signal, and a backward control signal. The former and the latter stage full-swing shift register store the signals output from the former and the latter stage full-swing shift registers respectively.
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