Interactive video distribution systems – Video distribution system with local interaction – Receiver
Reexamination Certificate
1999-07-15
2009-12-29
Saltarelli, Dominic D (Department: 2421)
Interactive video distribution systems
Video distribution system with local interaction
Receiver
C725S032000, C725S098000, C725S115000, C725S136000
Reexamination Certificate
active
07640571
ABSTRACT:
A method and device prevent a set-top terminal from accepting a download of new programming or data over a cable network when the download would be redundant of information already possessed by the set-top terminal or would cause an inconvenience to subscribers. When the set-top terminal is signaled that a new download is being offered, the set-top terminal checks to see if the download in fact contains a newer version of data or programming than is currently resident in the set-top terminal. The set-top terminal also checks whether criteria for accepting a download are met. The criteria are conditions that tend to indicate that an interruption of service to accept a download would not inconvenience the subscriber at that time. When the criteria are met, the download is accepted. Otherwise, the download is not accepted or is not accepted until the criteria are satisfied. Similar criteria govern the termination of the older, executing programming and the execution of the newer, downloaded programming to, again, prevent unwarranted disruptions in service.
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Written Opinion from International Preliminary Examination Authority, dated Jul. 25, 2001.
Chatterjee Abhijit
Reichgott Samuel
Schell Charles
General Instrument Corporation
Saltarelli Dominic D
Wiener Stewart M.
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