Telecommunications – Wireless distribution system
Patent
1994-06-28
1996-04-02
Harvey, David E.
Telecommunications
Wireless distribution system
455 121, 380 20, H04N 720
Patent
active
055049346
ABSTRACT:
In a satellite communication receiving device which is for use in a network having a network number and comprises a tuner section (24) for receiving a first communication signal as a received signal from an assigned channel assigned at a time to the network, a first extracting circuit (29) extracts, as extracted common information from the received signal, common information including the network number. A processing circuit (30) processes the extracted common information into a processed signal. When the assigned channel is changed due to a change of a borrowing transponder of a satellite, the processing circuit does not receive the extracted common information from the first extracting circuit and produces a reception impossibility signal. In response to the impossibility signal, a channel selecting circuit (25) causes the tuner section to receive a second communication signal from a specific channel with channel information included in the second communication signal during a contracted time band of the network. The channel information comprises a pair of the network number of the network and a channel number of the assigned channel which is currently assigned to the network. A second extracting circuit (33 ) extracts, as extracted channel information from the received signal, the channel information comprising the network number of the network. In this event, the channel selecting circuit causes the tuner section to receive another communication signal from another channel which has the channel number included in the extracted channel information.
REFERENCES:
patent: 4709266 (1987-11-01), Hanas et al.
patent: 4995096 (1991-02-01), Isoe
Harvey David E.
NEC Corporation
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