Decoder for a pay television system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 19, 1988
Grant Date -
N/A
app pub date -
Oct 31, 1985
filing date -
Oct 31, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A decoder for a pay television system incorporates a receiver for receiving scrambled programming and control data transmitted from a remote location, with the control data including data corresponding to the program fee and the program status, and a manual switch for selectively descrambling the program data when the program status is a pay-per-view program. The decoder has a storage unit for storing a credit value, transmitted from the remote location, and the decoder has timer apparatus for measuring the time during which a pay-per-view program is being received and for subtracting a program fee periodically from the value stored in the storage unit, during the time of reception of the selected program, provided the switch is operated to descramble the program.
First Claim
Family
International Classification(s)
Cited Art Landscape
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