
基本信息:
- 专利标题: 铁路列车卫星电视系统
- 专利标题(英):Satellite TV system for trains
- 申请号:CN99121648.2 申请日:1999-10-11
- 公开(公告)号:CN1258618A 公开(公告)日:2000-07-05
- 发明人: 葛水生
- 申请人: 葛水生
- 申请人地址: 北京市西外大柳树路2号铁科院宿舍北一楼523
- 专利权人: 葛水生
- 当前专利权人: 葛水生
- 当前专利权人地址: 北京市西外大柳树路2号铁科院宿舍北一楼523
- 代理机构: 铁道部科技情报所铁路专利咨询服务中心
- 代理人: 王晋琪
- 主分类号: B61D49/00
- IPC分类号: B61D49/00 ; H04N7/20
摘要:
铁路列车卫星电视系统,包括若干输出图像设计、卫星电视接收系统、各车厢电视机的天线输入端,卫星电视接收机送来的音、视频信号经音、视频切换器选出其中一路,调制到中频载波,再变频为射频,通过射频电缆,高频放大器、耦合器和分支器将电视信号以闭路形式进行传输分配,最后到达各个电视接收机的天线输入端。本发明铁路列车卫星电视装置,使旅客在旅途途中,不仅能收听广播,而且还能收看电视节目和录像节目。
摘要(英):
The satellite TV system includes satellite TV receiver and the antenna inputs for the TV sets in carriages. The audio and video signals from the satellite TV system are selected by the audio and video shifter, the signal of the selected channel is modulated to MF carrier and changed into RF signal, which is transmitted and distributed as closed circuit TV signal through RF cable, HF amplifier, coupler and branch circuit to the inputs of the TV sets. The satellite TV system of the present invention makes it possible for the railway passengers to watch TV and video record programs.
公开/授权文献:
- CN1089071C 铁路列车卫星电视系统 公开/授权日:2002-08-14