Television channel indicator

Details Television channel indicator Television channel indicator

1975-02-25

1976-09-28

Safourek, Benedict V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 79D, G01R 2314

Patent

active

039834913

ABSTRACT:
The video local oscillator signal is mixed with a signal from a fixed frequency oscillator to produce a difference frequency signal, which is frequency divided and gated to a counter during a predetermined time period in such a manner that the final count of the counter contains the channel number, which is digitally displayed.

REFERENCES:
patent: 3244983 (1966-04-01), Ertman
patent: 3509484 (1970-04-01), Basse
patent: 3681707 (1972-08-01), Bean
patent: 3753119 (1973-08-01), Close

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