Mitigating noise created by spread spectrum clocks

Details Mitigating noise created by spread spectrum clocks Mitigating noise created by spread spectrum clocks

2007-12-21

2011-11-08

Vo, Don N (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

Reexamination Certificate

active

08054921

ABSTRACT:
A platform to mitigate noise caused by spread spectrum clock signals. The platform may comprise a noise mitigation block, which may include a first set of analog-to-digital converters, a second analog-to-digital, and a noise canceller. The first set of analog-to-digital converters may generate clock samples by digitizing the plurality of spread spectrum clock signals, which are provided as inputs to the noise mitigation block. The second analog-to-digital converter may generate data samples by digitizing the data signal. The noise canceller coupled to the first set of analog-to-digital converters and the second analog-to-digital converter may identify an interference portion in the data signal using the clock samples and the data samples and remove the interference portion from the data signal.

REFERENCES:
patent: 7606546 (2009-10-01), Liu et al.
patent: 2007/0210832 (2007-09-01), Abel et al.
patent: 2008/0037693 (2008-02-01), Andrus et al.
patent: 2010/0225620 (2010-09-01), Lee

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