Frequency synthesizer and digital phase lock loop

Details Frequency synthesizer and digital phase lock loop Frequency synthesizer and digital phase lock loop

1982-03-15

1986-01-07

LaRoche, Eugene R.

Oscillators

Automatic frequency stabilization using a phase or frequency...

With reference oscillator or source

331 14, 375120, H03L 700

Patent

active

045636575

ABSTRACT:
In one aspect the invention features a digital synthesizer having clock circuitry to provide a clock pulse train, synthesizer circuitry to provide a synthesized pulse train at a frequency such that multiple clock pulses occur between pairs of successive synthesized pulses, and phase control circuitry to cause an effective shift in the synthesized pulse train frequency by causing, between pairs of successive synthesized pulses, a number of phase shifts in the clock pulse train.

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patent: 4044314 (1977-08-01), Sosin
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patent: 4229824 (1980-10-01), En
patent: 4296380 (1981-10-01), Minakucki
patent: 4456890 (1984-06-01), Carickhoff

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