Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Reexamination Certificate
2007-08-28
2007-08-28
Fan, Chieh M. (Department: 2611)
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
C375S144000, C375S232000, C375S377000, C375S376000, C375S371000, C370S350000, C360S055000, C324S076820
Reexamination Certificate
active
10267177
ABSTRACT:
A device communicates with a host and includes a transmitter, a receiver and a clock generator that generates a signal having a local clock frequency. A clock recovery circuit communicates with the receiver and recovers a host clock frequency from data received from the host by the receiver. A frequency offset circuit communicates with the clock recovery circuit and the clock generator and generates a frequency offset based on the clock frequency and the recovered host clock frequency. A frequency compensator compensates a frequency of the transmitter using the frequency offset. The host and the device may communicate using a serial ATA standard. Frequency compensation can be performed during spread spectrum operation.
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Sutioso Henri
Wu Lei
Fan Chieh M.
Marvell International Ltd.
Pathak Sudhanshu C.
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