H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/173 (2006.01) H04N 5/445 (2006.01)
Patent
CA 2507439
Interactive Program Guide (IPG) television data is delivered to integrated receiver-decoders (IRDs) (130) via, for example, a satellite network (110, 120). The data provides information for global and local programming services which are carried via the network as well as another network such as a CATV network (150). Each IRD (130) is assigned to an IPG region using unit addressing. At the IRD (130), IPG data is filtered so that only global data (400) and region-specific data (405, 410, 415) for the 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 filtering (185) to discard program sources 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 (190, 195). A preferred source is designated when there are duplicative channels on the different networks, to allow the recovery and display thereof by the decoder in lieu of the non-designated programming services.
Eyer Mark K.
Guo Zicheng
General Instrument Corporation
Ridout & Maybee Llp
LandOfFree
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