Digital circuit to measure and/or correct duty cycles

Electrical computers and digital processing systems: support – Clock – pulse – or timing signal generation or analysis

Reexamination Certificate

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Details

C713S600000, C326S096000, C327S073000, C327S087000, C327S146000, C327S175000, C331S011000, C375S238000, C702S124000

Reexamination Certificate

active

07917795

ABSTRACT:
A method, an apparatus, and a computer program are provided to measure and/or correct duty cycles. Duty cycles of various signals, specifically clocking signals, are important. However, measurement of very high frequency signals, off-chip, and in a laboratory environment can be very difficult and present numerous problems. To combat problems associated with making off-chip measurements and adjustments of signal duty cycles, comparisons are made between input signals and divided input signals that allow for easy measurement and adjustment of on-chip signals, including clocking signals.

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