发明授权
- 专利标题： Community antenna broadcast system having an improved channel selecting system permitting purchase of a selected channel from a plurality of non-purchased channels
- 专利标题（中）： 社区天线广播系统具有改进的频道选择系统，允许从多个非购买频道购买所选频道
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申请号： US711725申请日： 1991-06-10
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公开(公告)号： US5105268A公开(公告)日： 1992-04-14
- 发明人: Toshio Yamanouchi , Atsuo Tanaka , Keizo Kuwahara , Yasumasa Sakano , Yohsuke Ohba , Shuji Hori
- 申请人： Toshio Yamanouchi , Atsuo Tanaka , Keizo Kuwahara , Yasumasa Sakano , Yohsuke Ohba , Shuji Hori
- 申请人地址： JPX Kanagawa JPX Kanagawa
- 专利权人： Fujitsu Limited,Ohba; Yohsuke
- 当前专利权人： Fujitsu Limited,Ohba; Yohsuke
- 当前专利权人地址： JPX Kanagawa JPX Kanagawa
- 优先权： JPX63-281605 19881108; JPX63-301632 19881129
- 主分类号： G07F7/00
- IPC分类号： G07F7/00 ; H03J1/00 ; H04N7/06 ; H04N7/10 ; H04N7/16
摘要：
A community antenna broadcasting system comprises a transmitting center for broadcasting programs in physical channels, a transmission path, and one or a plurality of home terminals for receiving the programs broadcast from the transmitting center via the transmission path. The transmitting center transmits a main information which includes video and audio information for each of physical channels, and also transmits a control information which includes numbers of logical channels which are contents of the physical channels. The home terminal enters a supervision information which includes a number of a desired logical channel which corresponds to a desired program, and produces a channel selection instruction by collating the control information and the supervision information. A channel selection part is provided within the home terminal. The channel selection part receives the information via the transmission path and selects a physical channel in response to the channel selection instruction.
公开/授权文献
- US5724011A Voltage variable dielectric ridged waveguide phase shifter 公开/授权日：1998-03-03
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