Synchronizing signal selecting circuit

Details Synchronizing signal selecting circuit Synchronizing signal selecting circuit

1977-08-08

1979-06-26

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

Attribute control

358163, H04N 946

Patent

active

041594819

ABSTRACT:
A synchronizing signal selecting circuit includes a counter for counting clock signals of a predetermined frequency in accordance with an input synchronizing signal; a reference signal forming circuit for forming a predetermined reference signal on the basis of the output of the counter; and a detecting circuit for detecting the input synchronizing signal on the basis of the output of the reference signal forming circuit.

REFERENCES:
patent: 3671669 (1972-06-01), Abbott

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