Chrominance subcarrier regeneration network

Details Chrominance subcarrier regeneration network Chrominance subcarrier regeneration network

1981-11-12

1982-12-28

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

With reference oscillator or source

331 25, 331 30, 455259, 455260, 455264, 358 25, H03L 708

Patent

active

043664512

ABSTRACT:
A chrominance subcarrier regeneration network having high stability, the network being adapted for use in a video tape recorder and including a phase detector for comparing the phase of a gated subcarrier burst of a video signal with that of a subcarrier regenerated signal to develop an error signal; a voltage controlled oscillator driven by the error signal to develop a corrected signal at a frequency substantially below that of the subcarrier burst; and a crystal oscillator, mixer and filter for translating the frequency and filtering the corrected signal to develop the regenerated signal.

REFERENCES:
patent: 3619803 (1971-11-01), Klein
patent: 3909723 (1975-09-01), Manson et al.
patent: 4118741 (1978-10-01), Gomi et al.

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