Article: Chinese Inventors Develop Digital Logic Design D Flip-Flop System

ALEXANDRIA, Va., Aug. 8 -- Chi Wah Kok and Yee Ching Tam, both of Hong Kong, China, have developed a flip-flop for digital logic design.

According to the U.S. Patent & Trademark Office: "A D flip-flop with a reduced power product or reduced clock line capacitance is disclosed. The flip-flop includes a half-static slave stage or a master stage with clock gating by the input and output. The half-static slave stage an output inverter and a feedback element consisting of a single switching transistor having a gate connected to the output of the flip-flop and the input of the inverter as its load. The clock gating circuit, which may comprise an XNOR gate, reduces the frequency of switching ...

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