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1. 发明授权

US5499046A CATV distribution system with each channel having its own remote scheduler 失效
标题翻译：每个频道的CATV分配系统都有自己的远程调度器
公开(公告)号：US5499046A
公开(公告)日：1996-03-12
申请号：US247967
申请日：1994-05-23
申请人： Jay B. Schiller , Richard A. Schmelzer
发明人： Jay B. Schiller , Richard A. Schmelzer
IPC分类号： H04N7/16 , H04N7/173
CPC分类号： H04H60/06 , H04N7/165
摘要： A cable television (CATV) system including a plurality of headends, each headend outputting different video/audio programs to subscribers by way of a plurality of channels. The playlist or scheduling data corresponding to each channel is generated and modified by a separate and distinct scheduling computer, the scheduling computers for each channel being located at different locations. Such a system allows the output of each CATV channel at different headends to be generated, modified, and controlled via separate schedulers. This is advantageous in environments where different companies control the distribution of different channels. For example, company A, which outputs its programs via channel 1 may control the channel 1 playlist from its headquarters, while company B which outputs its programs via channel 3 may control channel 3 scheduling from its headquarters, the headquarters of companies A and B of course being remote from one another thereby enabling companies A and B to control their respective channel presentation from locations of their choice.
摘要翻译：一种包括多个头端的有线电视（CATV）系统，每个头端通过多个频道向用户输出不同的视频/音频节目。每个频道对应的播放列表或调度数据由独立且不同的调度计算机生成和修改，每个频道的调度计算机位于不同的位置。这样的系统允许通过单独的调度器来生成，修改和控制在不同头端处的每个CATV信道的输出。这在不同的公司控制不同渠道的分布的环境中是有利的。例如，通过频道1输出其节目的公司A可以从其总部控制频道1播放列表，而通过频道3输出其节目的公司B可以从总部控制频道3的调度，公司A和B的总部当然是远离彼此，从而使A公司和B公司可以根据他们选择的位置来控制他们各自的频道呈现。

2. 发明授权

US5594490A System for distributing video/audio files from central location to a plurality of cable headends 失效
标题翻译：用于将中央位置的视频/音频文件分发到多个电缆头端的系统
公开(公告)号：US5594490A
公开(公告)日：1997-01-14
申请号：US247834
申请日：1994-05-23
申请人： William P. Dawson , Jay B. Schiller , Richard A. Schmelzer , Daniel J. Zigmond
发明人： William P. Dawson , Jay B. Schiller , Richard A. Schmelzer , Daniel J. Zigmond
IPC分类号： H04B7/185 , H04N7/173
CPC分类号： H04B7/18523 , H04L1/0083 , H04L1/1809 , H04L1/22 , H04N7/17336
摘要： A system and method for ensuring accurate reception of digitally encoded files that are transmitted in non-real time from a distribution station to a plurality of receiving stations, e.g. cable headends. Each file is divided into a plurality of data packets, with the packets being transmitted via satellite to the headends. Each headend determines which packets are in error (i.e. missing or jumbled) and need to be re-transmitted to the headend from the distribution station. After such a determination, each headend communicates a request over a land-link, e.g. telephone line or internet, to the distribution station requesting re-transmission of the packets in error. The distribution station then re-transmits these particular packets either via the land-link or the satellite. Re-transmission in non-real time via the land-link allows the headend to simultaneously receive packets via satellite and land-link so as to reduce the time taken to transmit files from the distribution station to the headends. The different land-links coupling the distribution station to each receiving station allow different data packets to simultaneously be re-transmitted to different receiving stations.
摘要翻译：一种用于确保以非实时的方式从分发站传输到多个接收站的数字编码文件的准确接收的系统和方法，例如，电缆头端。每个文件被分成多个数据分组，其中分组通过卫星传送到头端。每个头端确定哪个数据包是错误的（即丢失或混乱），并且需要从分发站重新发送到头端。在这样的确定之后，每个头端通过陆地链路传送请求，例如，电话线路或互联网，到分发站请求重新发送数据包错误。分配站然后通过陆地链路或卫星重新发送这些特定分组。通过陆地链路非实时重新传输允许头端通过卫星和陆地链路同时接收分组，以便减少从分发站向头端传输文件所需的时间。将分配站耦合到每个接收站的不同的陆地链路允许不同的数据分组同时被重新发送到不同的接收站。

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