Television reception interfering apparatus

Details Television reception interfering apparatus Television reception interfering apparatus

1980-05-09

1982-02-23

Ng, Jin F.

Telecommunications

Interference signal transmission

455231, 455289, H04K 300

Patent

active

043172130

ABSTRACT:
Apparatus for use with a television receiver for selectively inhibiting reception of television broadcast signals. The apparatus includes a number of signal generating circuits, each respectively set to generate an electrical signal substantially equal to the carrier frequency of a corresponding television broadcast signal, and timer capable of being preset to activate and deactivate selected oscillators on a timed basis. The signal generating circuits are coupled to the antenna input leads of the television receiver so that when activated the electrical signals produced thereby cause sufficient interference with the corresponding incoming television broadcast signal to effectively block reception.

REFERENCES:
patent: 2755424 (1956-07-01), Papitto
patent: 3936752 (1976-02-01), Sasabe et al.
patent: 4039954 (1977-08-01), den Toonder
patent: 4081753 (1978-03-01), Miller
patent: 4081754 (1978-03-01), Jackson
patent: 4232396 (1980-11-01), Grimes

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