Interactive video distribution systems – Video distribution system with upstream communication – Transmission network
Reexamination Certificate
2006-04-04
2006-04-04
Bui, Kieu-Oanh (Department: 2611)
Interactive video distribution systems
Video distribution system with upstream communication
Transmission network
C725S107000, C725S124000, C725S127000
Reexamination Certificate
active
07024682
ABSTRACT:
Disclosed are a method and bi-directional communication device, such as a cable modem, for iteratively performing the following steps for each of a plurality of communications channels until a downstream data signal is detected. Selecting a communications channel and checking for a downstream signal having a first bandwidth complying with a first system interface standard, and if the downstream signal having said first bandwidth is not detected, then checking the communications channel for a downstream signal having a second bandwidth complying with a second system interface standard.
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Diemer Rodger Anthony
Lavaud Simon
Bui Kieu-Oanh
Eriksen Guy H.
Kurdyla Ronald H.
Laks Joseph J.
Thomson Licensing
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