Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1997-12-15
2000-12-12
Flynn, Nathan
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
348 13, 348906, 348569, 455 62, H04N 714, H04H 102
Patent
active
06160545&
ABSTRACT:
Interactive Program Guide (IPG) data for television is delivered to integrated receiver-decoders (IRDs) in a decoder population via, for example, a satellite network. The IPG data provides scheduling information for global and local programming services which are carried via the satellite network as well as another network such as a CATV network or a terrestrial broadcast network. Each IRD is assigned to an IPG region using unit addressing. At the IRD, IPG data is filtered so that only the global data and the region-specific data for the IRD's IPG region is retained and processed by the IRD. Channel map data is also delivered to the IRDs so that bundles of IRD data can be filtered out using firmware filtering to discard program sources that are not present in the channel map. The IRD data which is retained after filtering is used to provide scheduling information via an on-screen display. A preferred source may be designated when there are duplicative channels on the different networks.
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Eyer Mark K.
Guo Zicheng
Bui Kieu-Oanh
Flynn Nathan
General Instrument Corporation
Hoppin Ralph F.
Lipsitz Barry R.
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