H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/01 (2006.01) H04N 7/08 (2006.01) H04N 7/167 (2006.01) H04N 7/16 (2006.01) H04N 7/24 (2006.01)
Patent
CA 2067445
Television signals are converted from a first format to a plurality of different formats while retaining a common control data stream. A first television signal in a first format is separated into a first signal portion (12, 14) carrying television information and a second signal portion (12, 16) carrying control data. The first signal portion is reformatted into a second format (22). The second signal portion is combined with the reformatted first signal portion to provide a second television signal (22 , 28, 32). In this manner, a plurality of television signals having different formats can be transmitted with common control data, e.g., for controlling access to television programming.
Bennett Christopher John
Kelkar Kris
General Instrument Corporation
Ridout & Maybee Llp
LandOfFree
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