Method of and system for providing geographically targeted broadcast satellite service
First Claim
Patent Images
1. A method of providing broadcast satellite service comprising the steps of:
- receiving a plurality of local programming packages at a satellite, wherein said plurality of local programming packages are transmitted from a ground location on a single uplink beam, and each of said local programming packages is carried on a separate unlink frequency of an uplink frequency band;
receiving a full coverage programming package at said satellitetransmitting said plurality of local programming packages from said satellite to a plurality of geographically separate local ground areas, wherein said step of transmitting said local programming packages from said satellite to a plurality of geographically separate local ground areas includes the step of transmitting said local programming packages on a number of downlink frequencies that is less than the number of uplink frequencies;
transmitting said full coverage programming package from said satellite to a geographical area which includes said plurality of geographically separate local ground areas;
receiving a signal carrying said plurality of local programming packages at said satellite;
forming a plurality of local programming package groups from the plurality of local packages received at said satellite;
amplifying each of said local programming package groups; and
separating the amplified local programming package groups into a plurality of individual amplified local programming packages.
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Accused Products
Abstract
A method of and system for providing local direct broadcast satellite service by transmitting a plurality of local programming packages. The satellite transmits the local programming packages to a plurality of geographically separate local ground areas.
70 Citations
12 Claims
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1. A method of providing broadcast satellite service comprising the steps of:
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receiving a plurality of local programming packages at a satellite, wherein said plurality of local programming packages are transmitted from a ground location on a single uplink beam, and each of said local programming packages is carried on a separate unlink frequency of an uplink frequency band; receiving a full coverage programming package at said satellite transmitting said plurality of local programming packages from said satellite to a plurality of geographically separate local ground areas, wherein said step of transmitting said local programming packages from said satellite to a plurality of geographically separate local ground areas includes the step of transmitting said local programming packages on a number of downlink frequencies that is less than the number of uplink frequencies; transmitting said full coverage programming package from said satellite to a geographical area which includes said plurality of geographically separate local ground areas; receiving a signal carrying said plurality of local programming packages at said satellite; forming a plurality of local programming package groups from the plurality of local packages received at said satellite; amplifying each of said local programming package groups; and separating the amplified local programming package groups into a plurality of individual amplified local programming packages. - View Dependent Claims (2, 3, 4)
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5. A method of providing broadcast satellite service, which comprises the steps of:
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receiving a plurality of local programming packages at a satellite, wherein said plurality of local programming packages are transmitted from a ground location on a single unlink beam, and each of said local programming packages is carried on a separate unlink frequency of an uplink frequency band; receiving a full coverage programming package at said satellite; transmitting said plurality of local programming packages from said satellite to a plurality of geographically separate local ground areas; transmitting said full coverage programming package from said satellite to a geographical area which includes said plurality of geographically separate local ground areas; receiving a signal carrying said plurality of local programming packages at said satellite; forming a plurality of local programming package groups from the plurality of local programming packages received at said satellite; amplifying each of said local programming package groups; and separating the amplified local programming package groups into a plurality of individual amplified local programming packages. - View Dependent Claims (6)
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7. A broadcasting satellite, which comprises:
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at least one spot beam downlink transmitting antenna, said spot beam downlink antenna including a plurality of feeds arranged to direct spot beams to a plurality of geographically separate local ground locations; at least one local uplink receiving antenna arranged to receive a signal carrying a plurality of local programming packages transmitted from a ground transmitting location; means for receiving local programming packages from said local uplink antenna and grouping said local programming packages into a plurality of local programming package groups; a plurality of power amplifiers, each power amplifier of said plurality of power amplifiers being arranged to amplify one local programming package group; and
,means for splitting each amplified local programming package group into individual programming packages and supplying each individual programming package to one of said feeds. - View Dependent Claims (8, 9)
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10. A broadcast satellite, which comprises:
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a first uplink receiving antenna; a first wideband receiver coupled to said first uplink receiving antenna, said first wideband receiver including means for converting signals from an uplink frequency band to a downlink frequency band; a first input demultiplexer coupled to said first wideband receiver for separating signals in said downlink frequency band into a plurality of first downlink frequency sub-bands; a plurality of first power amplifiers coupled to said first input demultiplexer, there being one first power amplifier for each first downlink frequency sub-band; an output multiplexer coupled to said first power amplifiers for combining outputs from said first power amplifiers into a first downlink beam; a wide area downlink transmitting antenna coupled to said first downlink beam; a second uplink receiving antenna; a second wideband receiver coupled to said second uplink receiving antenna; a second input demultiplexer coupled to said second wideband receiver for separating signals in said uplink frequency band into a plurality of uplink frequency sub-bands; means for converting said uplink frequency sub-bands into a number of second downlink frequency sub-bands, there being fewer of said second downlink frequency sub-bands than uplink frequency sub-bands; second input multiplexer means for combining said second downlink frequency sub-bands into a plurality of groups of second downlink frequency sub-bands; a plurality of second power amplifiers coupled to said second input demultiplexer means, there being one second power amplifier for each group of second downlink frequency sub-bands; an output demultiplexer coupled to said second power amplifiers for splitting outputs from said second power amplifiers into a plurality of second downlink beams; and
,a local area downlink transmitting spot beam antenna coupled to said second downlink beams.
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11. A direct broadcast satellite system, which comprises:
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at least one local programming package uplink transmitter; at least one wide area programming package uplink transmitter; a satellite positioned to receive signals from said uplink transmitters, said satellite including; at least one local uplink receiving antenna arranged to receive a signal carrying a plurality of local programmin packages transmitted from said local programming package uplink transmitter; at least one wide area uplink receiving antenna arranged to receive a signal carrying a plurality of wide area programming packages transmitted from said wide area uplink transmitter; a converter for receiving local programming packages from said local uplink receiving antenna and grouping said local programming packages into a plurality of local programing package groups; a plurality of power amplifiers, each power amplifier of said plurality of power amplifiers being arranged to amplify one local programming package group; a demultiplexer for splitting each amplified local programming package group into individual programming packages and supplying each individual programming package to one of a plurality of feeds, at least one spot beam downlink transmitting antenna, said spot beam downlink antenna including said plurality of feeds arranged to direct spot beams, each carrying a local programming package, to a plurality of geographically separate local ground locations; and
,at least one wide beam downlink transmitting antenna arranged to direct a wide beam, carrying a plurality of wide area programming packages, to ground. - View Dependent Claims (12)
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Specification