Electrical computers and digital processing systems: support – Clock – pulse – or timing signal generation or analysis
Reexamination Certificate
2011-03-29
2011-03-29
Stoynov, Stefan (Department: 2116)
Electrical computers and digital processing systems: support
Clock, pulse, or timing signal generation or analysis
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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Boerstler David William
Hailu Eskinder
Krauter Byron Lee
Miki Kazuhiko
Qi Jieming
Boudino James L.
International Business Machines - Corporation
Stoynov Stefan
Talpis Matthew B.
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