Video-on-demand satellite system
First Claim
1. A satellite video on demand method using a satellite in earth orbit with at least one uplink and plural downlinks to plural cells distributed over a geographic region, the method comprising:
- receiving at a control station plural requests for video files from plural users in plural cells in the geographic region, including first requests from plural first users in plural first cells for a first video file and second requests for one or more second video files from other users in one or more second cells;
accumulating the first requests over a first time period;
transmitting at least portions of the one or more second video files to the other users via the at least one uplink and one or more downlinks to the one or more second cells during the first time period; and
after the first time period, transmitting the first video file to the plural first users via the at least one uplink and plural simultaneous downlinks to the plural first cells.
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Accused Products
Abstract
A satellite video on demand system and method provide videos or other files on demand using a satellite in earth orbit. The satellite includes at least one uplink and multiple downlinks to multiple cells distributed over a geographic region. Multiple requests for video files from multiple users in multiple cells in the geographic region are received at a control station. The requests may include multiple requests from users in multiple cells for a first video file, and multiple other requests for one or more other video files from other users. The requests for the first video file are accumulated over a time period, and at least portions of the other video files are transmitted to the other users via the satellite during the time period. After the time period, the first video file is transmitted to the users who requested it with simultaneous transmissions over the satellite.
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Citations
24 Claims
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1. A satellite video on demand method using a satellite in earth orbit with at least one uplink and plural downlinks to plural cells distributed over a geographic region, the method comprising:
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receiving at a control station plural requests for video files from plural users in plural cells in the geographic region, including first requests from plural first users in plural first cells for a first video file and second requests for one or more second video files from other users in one or more second cells;
accumulating the first requests over a first time period;
transmitting at least portions of the one or more second video files to the other users via the at least one uplink and one or more downlinks to the one or more second cells during the first time period; and
after the first time period, transmitting the first video file to the plural first users via the at least one uplink and plural simultaneous downlinks to the plural first cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A satellite video on demand queuing method for use with a satellite in earth orbit having at least one uplink and plural downlinks to plural cells distributed over a geographic region, the method comprising:
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receiving at a control station plural requests for video files from plural users in plural cells in the geographic region, including first requests from plural first users in plural first cells for a first video file and second requests for one or more second video files from other users in one or more second cells;
accumulating the first requests over a first time period;
transmitting at least portions of the one or more second video files to the satellite via the at least one uplink during the first time period for delivery to the other users; and
after the first time period, transmitting the first video file to the satellite for simultaneous delivery to the plural first users. - View Dependent Claims (13, 14)
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15. A computer-readable medium with satellite video on demand queuing software for use with a satellite in earth orbit having at least one uplink and plural downlinks to plural cells distributed over a geographic region, the medium comprising:
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software for receiving at a control station plural requests for video files from plural users in plural cells in the geographic region, including first requests from plural first users in plural first cells for a first video file and second requests for one or more second video files from other users in one or more second cells;
software for accumulating the first requests over a first time period;
software for transmitting the one or more second video files to the satellite via the at least one uplink during the first time period for delivery to the other users; and
software for transmitting the first video file to the satellite after the first time period. - View Dependent Claims (16, 17)
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18. A satellite video on demand method using a satellite in earth orbit having at least one uplink and plural downlinks to plural cells distributed over a geographic region, the method comprising:
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directing plural first downlinks to the plural cells arranged in a first open array of spaced-apart cells with interstices therebetween, the first downlinks carrying a first common downlink signal to the cells in the first open array so that the first common downlink signal between the cells in the first open array constructively interferes to deliver the first common downlink to the interstices; and
directing plural second downlinks to the plural cells arranged in a second open array of spaced-apart cells with interstices therebetween, the cells in the second open array being in the interstices between the cells in the first open array, the second downlinks carrying a second common downlink signal to the cells in the first open array so that the second common downlink signal between cells constructively interferes to deliver the first common downlink to the interstices between the cells. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A satellite file-on-demand method using a satellite in earth orbit with at least one uplink and plural downlinks to plural cells distributed over a geographic region, the method comprising:
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receiving at a control station plural requests for files from plural users in plural cells in the geographic region, including first requests from plural first users in plural first cells for a first file and second requests for one or more second files from other users in one or more second cells;
accumulating the first requests over a first time period;
transmitting at least portions of the one or more second files to the other users via the at least one uplink and one or more downlinks to the one or more second cells during the first time period; and
after the first time period, transmitting the first file to the plural first users via the at least one uplink and plural simultaneous downlinks to the plural first cells.
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Specification