Electrical computers and digital processing systems: support – Clock – pulse – or timing signal generation or analysis
Reexamination Certificate
2008-03-25
2008-03-25
Trujillo, James K. (Department: 2116)
Electrical computers and digital processing systems: support
Clock, pulse, or timing signal generation or analysis
C713S400000, C713S600000
Reexamination Certificate
active
07350095
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
Carr LLP
International Business Machines - Corporation
Rifai D'Ann N.
Stoynov Stefan
Toshiba America Electronics Components, Inc.
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