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公开(公告)号:US20050273822A1
公开(公告)日:2005-12-08
申请号:US11024500
申请日:2004-12-28
Applicant: William Snell , Samuel Yang , Roberto Lopez-Aparicio
Inventor: William Snell , Samuel Yang , Roberto Lopez-Aparicio
CPC classification number: H04N7/17336 , H04N7/20 , H04N21/2385 , H04N21/2393 , H04N21/25816 , H04N21/25841 , H04N21/2585 , H04N21/26216 , H04N21/4331 , H04N21/44209 , H04N21/47202 , H04N21/6143 , H04N21/6582 , H04N21/8358
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.
Abstract translation: 卫星视频点播系统和方法使用地球轨道上的卫星按需提供视频或其他文件。 该卫星包括分布在地理区域上的多个小区的至少一个上行链路和多个下行链路。 在控制站接收对地理区域中的多个小区中的来自多个用户的视频文件的多个请求。 请求可以包括用于第一视频文件的多个单元中的用户的多个请求,以及来自其他用户的一个或多个其他视频文件的多个其他请求。 对第一视频文件的请求在一段时间内被累积,并且在该时间段期间,其他视频文件的至少一部分经由卫星发送给其他用户。 在该时间段之后,第一个视频文件被传送到通过卫星同时发送请求的用户。