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USRE38142E1 Low cost hybrid video distribution system for aircraft in-flight entertainment systems 有权
标题翻译：低成本的飞行器娱乐系统混合视频分配系统
公开(公告)号：USRE38142E1
公开(公告)日：2003-06-10
申请号：US09663142
申请日：2000-09-15
申请人： Dickie J. Berry , Lawrence E. Girard , Richard E. Sklar
发明人： Dickie J. Berry , Lawrence E. Girard , Richard E. Sklar
IPC分类号： H04N7173
CPC分类号： H04H20/62 , H04N7/104 , H04N7/106 , H04N7/181 , H04N21/2146 , H04N21/2383 , H04N21/6143
摘要： An aircraft entertainment system employing a hybrid video distribution system that permits distribution of direct broadcast satellite television programming to passengers of the aircraft. The aircraft entertainment system has a video control center 11, a plurality of groups of set display units 40, and a plurality of audio and video processors 20 that control routing of programming to each seat display unit. A plurality of seat junction boxes 30 may be interposed between the audio and video processors 20 and the groups of seat display units 40. An antenna 12 is receives programming from a satellite, and a splitter 13 generates a plurality of channels of programming received by the antenna 12. A decoder 14 decodes the channels to provide video and audio signals, and an RF modulator 16 modulates the decoded audio and video signals for distribution. Each seat display unit 40 has a keypad 44 for selecting channels and controlling audio volume, a logic circuit 45 for outputting channel addresses of the selected channels, an address decoder 47 for decoding the channel addresses, and a channel display 46 for displaying the number of the selected channel. A video display 53 displays the television programming, and an audio output device reproduces the audio signals. The audio and video processors 20 convert the modulated RF video signals to baseband video for distribution to the seat display units 40. Each processor comprises a plurality of tuners 25, and non-blocking audio crosspoint switches 26, 27 having a predetermined number of audio and video outputs that are a selected multiple of the number of inputs. A processor 28 is coupled to the audio and video crosspoint switches and to the address decoder of each seat display unit for processing the decoded channel addresses and selecting which channels are output to each seat display unit.
摘要翻译：一种采用混合视频分配系统的飞机娱乐系统，允许直接广播卫星电视节目分发给飞机的乘客。飞机娱乐系统具有视频控制中心11，多组组显示单元40和多个音频和视频处理器20，其控制编程到每个座位显示单元的路由。多个座接线盒30可插入在音频和视频处理器20和座椅显示单元40组之间。天线12接收来自卫星的编程，并且分离器13产生由该卫星接收的编程信道天线12.解码器14解码通道以提供视频和音频信号，并且RF调制器16调制解码的音频和视频信号以进行分配。每个座椅显示单元40具有用于选择频道和控制音频音量的小键盘44，用于输出所选频道的频道地址的逻辑电路45，用于解码频道地址的地址解码器47以及用于显示频道数目的频道显示46 所选频道。视频显示器53显示电视节目，并且音频输出装置再现音频信号。音频和视频处理器20将经调制的RF视频信号转换为基带视频以分配到座椅显示单元40.每个处理器包括多个调谐器25和具有预定数量音频的非阻塞音频交叉点开关26,27，视频输出是输入数量的选定倍数。处理器28耦合到音频和视频交叉点开关和每个座位显示单元的地址解码器，用于处理解码的频道地址并选择哪些频道被输出到每个座位显示单元。

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