Receiver apparatus and method for providing conditional access to received television programs
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 15, 2000
Issued Date -
N/A
app pub date -
Nov 25, 1998
filing date -
Apr 24, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A television receiver is described for receiving and displaying to a viewer a program content rated television program transmission which includes a data signal. The receiver includes a circuit for separating the data signal from the television program signal. The rating derivation circuit derives the program rating from the data signal. A selection circuit is used to store program rating viewing authorizations for viewers. Means are provided to compare the derived program rating with the stored viewing authorization and to generate a blanking control signal. A monitoring circuit monitors the integrity of at least a portion of the data signal, calculates an error rate for the data signal and generates a rating error default control signal when the error exceeds a predetermined threshold. A no code detection circuit generates a no code default control signal when the data signal is not received within a predetermined period of time. A blanking circuit is responsive to the blanking control signal, the rating error default control signal, and the no code default control signal to blank a program in response to any of those signals.
First Claim
Family
International Classification(s)
Cited Art Landscape
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