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1. 发明授权

US06484318B1 CATV communication system and method for the internet connection 失效
标题翻译：有线电视通信系统和互联网连接方法
公开(公告)号：US06484318B1
公开(公告)日：2002-11-19
申请号：US08921951
申请日：1997-08-26
申请人： Takehiko Shioda , Akio Fukushima , Ikuru Yoshida , Jun Cheng , Hidenobu Kato , Masayuki Yamazaki , Kazuya Abe , Reiji Matsumoto
发明人： Takehiko Shioda , Akio Fukushima , Ikuru Yoshida , Jun Cheng , Hidenobu Kato , Masayuki Yamazaki , Kazuya Abe , Reiji Matsumoto
IPC分类号： H04N7173
CPC分类号： H04N7/17309 , H04L12/2801 , H04L47/10 , H04L2012/5616 , H04N21/6118 , H04N21/6168
摘要： A CATV communication system includes a center and a plurality of terminal devices connected via a CATV net. The center includes: a first transmitter for transmitting upstream channel use information representing unoccupied channel; a first detector for detecting channel get request from data transmitted from the terminal device; a second detector for detecting a presence of the unoccupied channel; a second transmitter for assigning one of the detected unoccupied channels to the terminal device transmitted the channel get request and for transmitting channel assign data including a designation of the assigned channel; and a first communication unit for performing data communication with the terminal device via the assigned channel. The terminal device includes: a second communication unit connected to a computer for performing communication with the computer; a third detector for detecting center-directed data included in the data received from the computer; a fourth detector for detecting the upstream channel use information from the data transmitted; a third transmitter for selecting one of the unoccupied channels on the basis of the upstream channel use information and for transmitting the channel get request designating the selected channel to the center; a fifth detector for detecting the channel assign information; and a third communication unit for performing data communication with the center by using the upstream channel designated by the channel assign information for data transmission.
摘要翻译： CATV通信系统包括通过CATV网连接的中心和多个终端设备。该中心包括：用于发送表示未占用信道的上行信道使用信息的第一发射机; 第一检测器，用于从从终端设备发送的数据检测信道获取请求; 用于检测未占用信道的存在的第二检测器; 用于将检测到的未占用信道中的一个分配给终端设备的第二发射机发送信道获取请求和用于发送包括所分配信道的指定的信道分配数据; 以及第一通信单元，用于经由所分配的信道与终端设备进行数据通信。终端装置包括：第二通信单元，连接到计算机，用于与计算机进行通信; 第三检测器，用于检测包括在从计算机接收的数据中的中心指向数据; 第四检测器，用于从所发送的数据检测上行信道使用信息; 第三发送器，用于基于所述上行信道使用信息来选择所述未占用信道中的一个，并将用于指定所选择的信道的信道获取请求发送到所述中心; 用于检测信道分配信息的第五检测器; 以及第三通信单元，用于通过使用由用于数据传输的信道分配信息指定的上行信道来执行与中心的数据通信。

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