EMI reduction using double sideband suppressed carrier modulatio

Details EMI reduction using double sideband suppressed carrier modulatio EMI reduction using double sideband suppressed carrier modulatio

1996-08-08

1999-03-30

Pham, Chi H.

Pulse or digital communications

Systems using alternating or pulsating current

Amplitude modulation

375362, 327162, 332167, H04L 700, H03C 152

Patent

active

058898190

ABSTRACT:
In a computer or other digital system a clock or other synchronous signal is routed from a source to a destination as a double side band suppressed carrier (DSB-SC) signal. The clock or other synchronous signal is amplitude modulated at the source using a broadband low frequency envelope signal. The modulated signal is the DSB-SC signal, which then is routed over PC board traces to the destination. At the destination, the DSB-SC signal is demodulated to achieve the clock or other synchronous signal.

REFERENCES:
patent: 3354410 (1967-11-01), Beuscher
patent: 3566036 (1971-02-01), Roche
patent: 3916410 (1975-10-01), Elwood
patent: 4507796 (1985-03-01), Stumfall
patent: 5491458 (1996-02-01), McCune, Jr. et al.
Hardin et al., "Spread Spectrum Clock Generation for the Reduction of Radiated Emmissions," IEEE Doc # 0-7803-1398; Apr. 1994.

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