05263055 is referenced by 36 patents and cites 7 patents.

An apparatus and method therefor substantially reducing the interference of a harmonic frequency component (301) of a clock signal with a filtered received signal (302), comprises a frequency spreading signal generator (127) and a signal modulator (125). The frequency spreading signal generator (127) produces a frequency spreading signal (130). The signal modulator (125) modulates the clock signal, produced by a clock signal generator (129), with the frequency spreading signal (130) to produce a modulated clock signal (131) including a modulated harmonic frequency component (303). The power level of a modulated harmonic frequency component (303), corresponding to the harmonic frequency component interfering with the filtered signal (202-204), is spread over a frequency bandwidth (f.sub.6 -f.sub.7) greater than the predetermined frequency bandwidth (f.sub.4 -f.sub.5) causing the power level of the modulated harmonic frequency component (303) within the predetermined frequency bandwidth (f.sub.4 -f.sub.5) to decrease.

Title
Apparatus and method for reducing harmonic interference generated by a clock signal
Application Number
7/787489
Publication Number
5263055
Application Date
November 4, 1991
Publication Date
November 16, 1993
Inventor
Stephen V Cahill
Palatine
IL, US
Agent
Kevin D Kaschke
Assignee
Motorola
IL, US
IPC
H03K 6/04
H03K 5/01
H03D 1/06
H03D 1/04
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