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...

2006-06-13

2010-12-28

D'Agosta, Stephen M (Department: 2617)

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

C455S071000, C455S078000, C455S130000, C455S142000, C455S422100, C330S010000, C330S251000

Reexamination Certificate

active

07860474

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:
patent: 6150969 (2000-11-01), Melanson
patent: 6587670 (2003-07-01), Hoyt et al.

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