Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Reexamination Certificate
2011-01-04
2011-01-04
Corrielus, Jean B (Department: 2611)
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
C327S244000
Reexamination Certificate
active
07864911
ABSTRACT:
A system and method for effectively supporting a data transmission procedure includes a phase-locked loop with a phase detector that compares a clock signal and input data to generate a phase error signal for adjusting the clock signal that is generated from a voltage-controlled oscillator. The phase detector includes a positive-edge detector circuit that generates an edge detection signal P to indicate whether data transitions are present in the input data. The phase detector also includes a lead/lag indicator circuit that generates a lead/lag indicator signal T to indicate whether the clock signal is early or late with respect to the input data.
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D.J. Friedman and M. Meghelli et al., SiGe BiCMOS Integrated Circuits For High-Speed Serial Communication Links, IBM J.Res. & Dev. vol. 47 No. 2/3 Mar./May 2003, 259-282 Pgs.
Corrielus Jean B
Koerner Gregory J.
Redwood Patent Law
Sony Corporation
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