Navigation within switched digital streamed content

Interactive video distribution systems – Video distribution system with upstream communication – Transmission network

Reexamination Certificate

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Details

C725S131000, C725S139000, C725S100000, C348S731000

Reexamination Certificate

active

07814525

ABSTRACT:
In certain embodiments, a method carried out in a digital television receiver device incapable of full two way communications, of receiving switched digital television programs involves storing a virtual channel table in the digital television receiver device, the virtual channel table having entries for each available channel and having a channel type indicator that identifies switched digital channels; receiving a command indicative of selection of a switched digital channel having the switched digital channel type indicator in the stored virtual channel table; sending a request from the television receiver device for the switched digital channel; responsive to the request, receiving a response that either grants the request or denies the request; and if the response grants the request, receiving an updated virtual channel table having updated table entries. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

REFERENCES:
patent: 7051361 (2006-05-01), Kim et al.
patent: 2002/0104085 (2002-08-01), Takagi et al.
The Society of Cable Telecommunications Engineers: American National Standard; ANSI/SCTE 65 2002, Service Information Delivered Out-of-Band for Digital Cable Television.

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