Optical triggered self-timed clock generation
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United States of America Patent
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Jul 12, 2011
Grant Date -
Dec 31, 2009
app pub date -
Jun 26, 2008
filing date -
Jun 26, 2008
priority date (Note) -
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Abstract
A self-timed clock circuit and method of generating a self-timed clock circuit. The circuit includes means for charging a circuit node in response to an external reset signal; means for discharging the circuit node in response to a trigger signal generated by a photodiode; means for generating a first signal indicating a logic level of the circuit node; means for generating and delaying a second signal indicating the logic state of the circuit node; means for combining the first and second signals to generate a recharge signal; and means for recharging the circuit node in response to the recharge signal.
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