Digitally phase modulated clock inhibiting reduced RF emissions

Details Digitally phase modulated clock inhibiting reduced RF emissions Digitally phase modulated clock inhibiting reduced RF emissions

1993-12-20

1995-08-15

Chin, Stephen

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

370108, H03K 706, H03K 906

Patent

active

054426642

ABSTRACT:
A modulator for a clock pulse generator receives clock pulses from a clock pulse source, which clock pulses exhibit a reference phase. Delay circuitry is connected to the clock pulse source and includes n tap connections, each connection providing a clock pulse that is delayed by a different phase delay from the reference phase. A multiplexer is connected to each of the n tap connections and provides an output manifesting the clock pulses. A selector circuit controls the multiplexer to sequentially connect any sequence of different ones of the n tap connections to the multiplexer's output, whereby the output manifests a series of clock pulses which have different phase displacements from the reference phase.

REFERENCES:
patent: 4513427 (1985-04-01), Borriello et al.
patent: 5022056 (1991-06-01), Henderson et al.

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