Arrangement for detecting to which channel a television set is t

Details Arrangement for detecting to which channel a television set is t Arrangement for detecting to which channel a television set is t

1984-05-24

1986-03-18

George, Keith E.

Facsimile and static presentation processing

Static presentation processing

Attribute control

455 2, H04N 700

Patent

active

045772207

ABSTRACT:
A television channel detecting arrangement, for detecting to which channel a television set is tuned, comprises an inductive loop (14) for receiving a signal from a local oscillator (10) of the television set (12); a tuner (16); a detector (18,20) which are such that, when the tuner is tuned to the frequency of the signal from the local oscillator, a voltage is generated at the detector; and a counter (25) which addresses a store (24) which uses stored binary numbers to vary over a range the frequency to which the tuner is tuned.

REFERENCES:
patent: 2965433 (1960-12-01), Alpert et al.
patent: 3800223 (1974-03-01), Mead
patent: 4048562 (1977-09-01), Haselwood et al.
patent: 4425578 (1984-01-01), Haselwood et al.

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