Dual standard vertical deflection system

Details Dual standard vertical deflection system Dual standard vertical deflection system

1980-03-31

1982-12-21

Murray, Richard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 502

Patent

active

043652700

ABSTRACT:
Dual standard TV receiver includes means for identifying field frequency of received TV signals. A switching system responsive to output of field frequency identifying means alters circuitry of receiver's vertical deflection system in a manner maintaining same picture height for received signals of differing field frequencies. Circuitry alteration additionally effects appropriate alteration of free-running frequency of oscillator.

REFERENCES:
patent: 2668193 (1954-02-01), Chapin et al.
patent: 3182124 (1965-05-01), Nurse
patent: 3839649 (1974-10-01), Morio
"Valvo Brief/Hannover 1979/Informationen zur Messe", 4-18-79, p. 10.

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