Method and apparatus for blocking out improper television progra

Details Method and apparatus for blocking out improper television progra Method and apparatus for blocking out improper television progra

1998-11-13

2000-03-14

Faile, Andrew I.

Television

Special applications

Manufacturing

380 15, H04N 716

Patent

active

060379693

ABSTRACT:
A received television program is blocked out when a rating of the program is not within a scope of a preset rating. A rating signal is extracted from a video signal of the television program, and the rating signal is decoded to detect the rating of the program. The rating of the program is compared with the preset rating and an automatic frequency control (AFC) circuit is forced into an inoperative state to block out an output of the received television program when the comparison shows that the rating of the detected program is not within the scope of the preset rating. Accordingly, the blocking-out function against improper programs can be achieved by detecting the rating of the received program and by making the AFC circuit inoperative.

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