Method for controlling video and audio of a television set

Details Method for controlling video and audio of a television set Method for controlling video and audio of a television set

1988-06-27

1991-07-16

Wallace, Linda J.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

358 86, 358349, 340703, 340706, 3408151, 34081505, H04N 7167, H04N 710, G09G 302, G08B 536

Patent

active

050330853

ABSTRACT:
A method for controlling video and audio of a television set using a code in such a manner that a code is set up in a microcomputer of the television set, which is operated normally only when the code is released by input of a key signal corresponding to the code, to output the video and audio signals. Therefore, it is possible to prevent any person who does not know the code from driving the television set. For example, it is possible to prevent children from watching the television broadcast stealthily without notice of adults.

REFERENCES:
patent: 4620229 (1986-10-01), Amano et al.
patent: 4685131 (1987-08-01), Horne
patent: 4718107 (1988-01-01), Hayes

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