公开(公告)号：US06996077B1

公开(公告)日：2006-02-07

申请号：US09147763

申请日：1998-07-03

申请人： Masashi Suenaga ,  Masaru Oka ,  Yoichi Koishi ,  Yukiyoshi Fujimori ,  Hideo Kikuchi

发明人： Masashi Suenaga ,  Masaru Oka ,  Yoichi Koishi ,  Yukiyoshi Fujimori ,  Hideo Kikuchi

IPC分类号： H04B7/216

CPC分类号： H04B7/18526

摘要： In a broadcasting receiver, to quickly switch channels of the received multiplexed broadcasting signals at a high response speed to improve the convenience for a viewer, when broadcasting signals of a plurality of channels are to be code-division-multiplexed and broadcasted from a ground broadcasting station (BC1, BC2) to a broadcasting receiver (MS) in a service area via a geostationary satellite (SAT), the broadcasting signals are multiplexed and transmitted after matching the spreading code phase between the channels in the ground broadcasting station (BC1, BC2). Alternatively, the spreading code phase difference between the channels of a CDM broadcasting signal arriving from the ground broadcasting station (BC1, BC2) is detected in the geostationary satellite (SAT), and the broadcasting signal is transmitted to the broadcasting receiver (MS) after matching the spreading code phase between the channels on the basis of the detection result.

摘要翻译： 在广播接收机中，为了快速地以高响应速度切换所接收的复用广播信号的频道，以提高观众的便利性，当广播多个信道的信号要从地面广播进行码分复用和广播时 站（BC 1，BC 2）经由对地静止卫星（SAT）发送到服务区域中的广播接收机（MS），广播信号在地面广播站（BC）中的信道之间的扩展码相位匹配之后进行复用和发送 1，BC 2）。 或者，在对地静止卫星（SAT）中检测到从地面广播站（BC 1，BC 2）到达的CDM广播信号的信道之间的扩展码相位差，并将广播信号发送到广播接收机 ）根据检测结果匹配通道之间的扩展码相位。

公开(公告)号：US06501938B1

公开(公告)日：2002-12-31

申请号：US09424255

申请日：1999-11-30

申请人： Masashi Suenaga ,  Yukiyoshi Fujimori ,  Hideo Kikuchi ,  Yoichi Koishi

发明人： Masashi Suenaga ,  Yukiyoshi Fujimori ,  Hideo Kikuchi ,  Yoichi Koishi

IPC分类号： H04Q720

CPC分类号： H04H20/74 ,  H04B7/18523

摘要： In a broadcasting satellite, signals transmitted through an up transmission line of a Ka band, which includes a plurality of communication channels, are received by a Ka-band antenna. The signals received by the antenna are passed through band-pass filters to thereby extract a broadcasting signal transmitted through each communication channel. Those of the thus-extracted broadcasting signals, which have been transmitted through predetermined communication channels, are synthesized by each of synthesizers, then amplified by a corresponding one of high power amplifiers, and output to a corresponding one of a plurality of primary radiators employed in an S-band antenna. The S-band antenna transmits each synthesized signal to a predetermined area that corresponds to a corresponding primary radiator. Thus, the system can be made to a simple structure, and the service area can be changed for each broadcasting signal.

摘要翻译： 在广播卫星中，通过Ka波段天线接收包括多个通信信道的Ka波段的上行传输线路发送的信号。 由天线接收的信号通过带通滤波器，从而提取通过每个通信信道发送的广播信号。 已经通过预定的通信信道发送的这样提取的广播信号的那些由每个合成器合成，然后被相应的一个大功率放大器放大，并输出到多个一次辐射器中相应的一个 一个S波段天线。 S波段天线将每个合成信号发送到对应于一个主辐射器的预定区域。 因此，可以将系统制成简单的结构，并且可以为每个广播信号改变服务区域。