Phase locked loop clock recovery circuit for data reproducing ap

Details Phase locked loop clock recovery circuit for data reproducing ap Phase locked loop clock recovery circuit for data reproducing ap

1983-12-19

1986-04-01

Grimm, Siegfried H.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329122, 331 1A, 331 17, 331 23, 331 25, 331 27, H03K 900, H03L 708

Patent

active

045801002

ABSTRACT:
A data reproduction circuit, which can be used for reproducing audio data from an optical disc, includes a phase-locked loop which has a circuit for detecting polarity inversions of the input signal, a circuit for comparing the phases of a polarity inversion signal with a reference signal, and circuitry for generating an output clock signal which is phase-locked with the input signal, that clock being used to strobe the input signal to remove fluctuation and jitter from the input signal.

REFERENCES:
patent: 3701039 (1972-10-01), Lang et al.
patent: 3922613 (1975-11-01), Allen et al.
patent: 3982195 (1976-09-01), Turner
patent: 4059805 (1977-11-01), de Laage de Meux et al.

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