Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1993-09-30
1996-01-16
Buczinski, Stephen C.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
348 55, H04N 7167
Patent
active
054855187
ABSTRACT:
A method and apparatus for electronic media program recognition and choice are disclosed. The invention allows parental control of the individual television programs (e.g., series, episodes, or individual music videos) and radio programs that can be viewed or listened to by young children. The invention can be practiced without the need for or reliance on a Government or industry-wide program rating system or a "V-chip" approach. The invention automatically locks out (blocks) all programs that have not been determined by the parent to be suitable for child viewing. Suitable programs are unlocked and viewable whenever they are broadcast. Means are provided for implementing two strategies for discrimination among TV programs. Signal processing means and signal recognition software are relied upon in situations wherein program identification information is not encoded in the composite television signal. Two approaches to signal recognition are provided: video signal (e.g., title screen) recognition and audio signal (e.g., theme song) recognition. In event that Extended Data Service (EIA-608) data are available the capability to read and recognize program identifiers (e.g., names) is also provided.
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Hunter Robert M.
Stewart Frank M.
Buczinski Stephen C.
Yellowstone Environmental Science, Inc.
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