Circuits and methods for controlling switching noise in...

Details Circuits and methods for controlling switching noise in... Circuits and methods for controlling switching noise in...

2006-11-28

2006-11-28

D'Agosta, Steve M. (Department: 2617)

Telecommunications

Transmitter and receiver at separate stations

Distortion, noise, or other interference prevention,...

C455S063100, C455S071000, C455S296000, C455S114100, C455S501000, C332S107000, C330S010000, C330S256000, C375S132000, C375S238000, C341S143000, C341S152000

Reexamination Certificate

active

07142819

ABSTRACT:
A method of controlling noise in a pulse width modulation circuit includes varying a sample frequency and a range of information levels, wherein each sample within a data sample stream at the sample frequency represents a level within the range of information levels, to shift in frequency noise generated at the sample frequency during encoding of the data sample stream into pulse width modulated patterns.

REFERENCES:
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patent: 6545533 (2003-04-01), Karki et al.
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patent: 6593807 (2003-07-01), Groves et al.
patent: 6674789 (2004-01-01), Fardoun et al.
patent: 6819912 (2004-11-01), Roeckner et al.
patent: 6970503 (2005-11-01), Kalb

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