Line oscillator synchronizing circuit

Details Line oscillator synchronizing circuit Line oscillator synchronizing circuit

1978-11-14

1980-10-14

Martin, John C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

331 20, H04N 512, H03L 708

Patent

active

042284627

ABSTRACT:
A television receiver having a line synchronizing circuit wherein gate pulses for keying the synchronizing signal are derived from the oscillator signal, the gate pulses being positioned, by means of an auxiliary phase control loop, substantially symmetrical relative to an edge of a reference signal also derived from the oscillator signal. The auxiliary control loop also eliminates the influence of phase variations occurring in the line deflection circuit.

REFERENCES:
patent: 3991270 (1976-11-01), van Straaten et al.
patent: 4024343 (1977-05-01), Cense et al.

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