Pulse or digital communications – Systems using alternating or pulsating current – Angle modulation
Reexamination Certificate
2009-06-11
2011-10-11
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Angle modulation
C375S372000, C708S003000
Reexamination Certificate
active
08036300
ABSTRACT:
A clock recovery circuit for digital data transmission includes a delay lock loop having a first loop which generates a phase difference signal which is indicative of a quantized phase difference between a data signal and a clock signal; and a second loop which generates a phase difference signal which is a smooth, continuous function of the phase difference between the data signal and the clock signal, such as a phase difference signal which is proportional to the phase difference. The delay lock loop may include two phase shifters in series, and one or both of these may include a phase interpolator.
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Evans William P.
Naviasky Eric
Colandreo, Esq. Brian J.
Hassan Sarah
Holland & Knight LLP
Liu Shuwang
Rambus Inc.
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