Electrical computers and digital processing systems: support – Clock – pulse – or timing signal generation or analysis – Multiple or variable intervals or frequencies
Reexamination Certificate
2005-08-16
2005-08-16
Browne, Lynne H. (Department: 2116)
Electrical computers and digital processing systems: support
Clock, pulse, or timing signal generation or analysis
Multiple or variable intervals or frequencies
C713S500000, C713S503000, C375S354000, C375S355000
Reexamination Certificate
active
06931562
ABSTRACT:
A system and method for transferring data from circuitry disposed in a higher frequency clock domain actuated by a first clock signal to circuitry disposed in a lower frequency clock domain actuated by a second clock signal, wherein the first and second clock signals are provided in a predetermined frequency ratio. A first latch gated by a first modified clock signal that is derived from the first clock signal and plurality of intermediary signals relating thereto is operable to generate a first latched data output, which is provided to a second latch disposed in the lower frequency clock domain. The second latch gated by a second modified clock signal that is synthesized using the second clock signal and at least one intermediary clock signal derived therefrom is operable to generate a second latched output. A register is operable to synchronize the second latched data output into a synchronized data output for subsequent use by the circuitry disposed in the lower clock frequency domain.
REFERENCES:
patent: 5369672 (1994-11-01), Matsumoto
patent: 5548620 (1996-08-01), Rogers
patent: 5600824 (1997-02-01), Williams et al.
patent: 5708801 (1998-01-01), Williams et al.
patent: 5905766 (1999-05-01), Nguyen
patent: 5930311 (1999-07-01), Lovelace et al.
patent: 6163545 (2000-12-01), Flood et al.
patent: 6345328 (2002-02-01), Rozario et al.
Browne Lynne H.
Yanchus, III Paul
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