Flexible video synchronization circuit

Details Flexible video synchronization circuit Flexible video synchronization circuit

1981-10-30

1983-08-16

Murray, Richard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 506

Patent

active

043994598

ABSTRACT:
A circuit which accepts a variable horizontal frequency input signal and an independent variable vertical frequency input signal and generates a combined video synchronization signal including horizontal synchronization pulses and serrated vertical synchronization pulses preceded and followed by equalization pulses in accordance with specifications established by the National Television Standards Committee. The circuit is useful for generating a combined video synchronization signal from the variable frequency horizontal and vertical synchronization pulses supplied by programmable cathode ray tube controller integrated circuits.

REFERENCES:
patent: 3574450 (1971-04-01), White et al.
patent: 3588351 (1971-06-01), Baun
patent: 3705003 (1972-12-01), Lynn et al.
patent: 3737217 (1973-06-01), Haines et al.
patent: 3861790 (1975-01-01), Tamura
patent: 3910690 (1975-10-01), Regan
patent: 3936162 (1976-02-01), Krakau et al.
patent: 4012128 (1977-03-01), Regan
patent: 4070102 (1978-01-01), Lelouch
patent: 4155632 (1979-05-01), Wolbarsht
National Semiconductor Data Sheet for IC No. MM5230 TV Camera sync generator.
RCA transistor, Thyristor and Diode Manual, .COPYRGT.1971 RCA, Co., 175-179.
RCA Integrated Circuits, .COPYRGT.1976 RCA Co., 465-469.

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