H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/08 (2006.01) H04N 7/025 (2006.01) H04N 7/10 (2006.01) H04N 5/44 (2006.01) H04N 5/45 (2006.01)
Patent
CA 2468427
A television program stream that includes television programs and at least one original commercial, and a commercial replacement stream that includes at least one replacement commercial, are received simultaneously such that a respective replacement commercial is approximately synchronized in time with a respective original commercial. The television program stream and/or the commercial replacement stream is buffered to substantially synchronize a respective replacement commercial with a respective original commercial. Selective switching is performed between the television program steam and the commercial replacement stream, to provide a television program output that includes the television programs and the at least one replacement commercial instead of the at least one original commercial. Accordingly, commercial replacement may be provided in set top boxes without the need for mass storage devices to store the replacement commercials. Regional and/or national commercials may thereby be replaced by local commercials in TV markets and for multiple regional and/or national channels.
Radke Daniel A.
Wright Winston Hugh
Microspace Communications Corporation
Sim & Mcburney
LandOfFree
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