Method and apparatus for processing a conditional access program guide as for a satellite TV service
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 5, 1995
Grant Date -
N/A
app pub date -
May 26, 1994
filing date -
May 26, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In an audio/video transmission system, a method of forming program guide information conducive to selective display at respective receivers includes arranging program guide information in different data blocks according to types of guide information. One such data block contains channel information (CSSM.sub.i) describing the respective channels. Respective CSSM.sub.i in this block include a channel information customer service system byte (CI.sub.-- CSS) which contains conditional access information related to a channel associated with a CSSM.sub.i. In a receiver embodiment, a subscriber specific byte (CA.sub.-- CSS) is stored and accessible to program guide processing apparatus. Prior to displaying received program guide information for a particular channel, the subscriber byte CA.sub.-- CSS is compared with the channel information byte CI.sub.-- CSS in the program guide. Dependent upon the results of the comparison, the guide data for that particular channel is either displayed or not displayed in the program guide.
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