H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/16 (2006.01) H04L 29/06 (2006.01) H04N 7/173 (2006.01) H04N 7/16 (2006.01)
Patent
CA 2321462
This invention relates to a system for interactive on-demand delivery of multimedia using a multicast broadband backbone network transmitting IP- configured digital multimedia (e.g. television) signals. More particularly the on-demand system provides, inter alia, a Virtual Digital Video Recorder functionality. A system manager provides interactive access to the multimedia signals by a subscriber through either a decoder in a set top box (connected to a television) or a decoder in a computer (connected to a monitor) configured for converting the IP format signal into a format for display on the television or monitor. A central multimedia storage means is located within the network and remote from the subscriber for storing multimedia content. An on-demand component is configured for receiving a deliver request from a subscriber for the stored content, for locating the requested multimedia content from the storage means and for delivering the requested multimedia content for display on the television or monitor. The multimedia content is stored in the storage means in a format configured for locating same in response to a deliver request. An interactive program guide (IPG) may provide access to the multimedia signals and the multimedia signals are transmitted through the network according to scheduling corresponding to the interactive program guide. The on-demand component receives a record request (which includes broadcast channel and time information identifying the multimedia content and may utilize the IPG) from a subscriber and stores the multimedia content in response to the record request.
Alston David J.
Cameron Allan B.
Furlong Jeff L.
Higgins Sean G.
Jones Ian K.
Cassan Maclean
Imagictv Inc.
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