Television access control system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 1, 2000
Grant Date -
N/A
app pub date -
Feb 10, 1998
filing date -
Feb 15, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An arrangement for the control of viewing of a television program in which a classification code is transmitted with the video signal, for example, in an extension packet of a teletext signal, includes a decoder (23) which detects the received codes and passes them to a microcontroller (27). An authorized user is able to enter codes of permitted program classifications by means of a remote control unit (28). Codes representing these permitted classifications are stored in a non-volatile memory (29). The received and permitted codes are compared in the microcontroller (27) which inhibits the video (25) and/or audio (32) circuits if the received codes are not permitted codes. The non-volatile memory (29) is arranged to store a plurality of different program classifications, each of which is valid for different periods of the day.
First Claim
Family
International Classification(s)
Cited Art Landscape
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