公开(公告)号：US5831663A

公开(公告)日：1998-11-03

申请号：US672272

申请日：1996-06-26

申请人： John Waterhouse ,  Garvy Mayo

发明人： John Waterhouse ,  Garvy Mayo

IPC分类号： H04N5/44 ,  H04N7/10 ,  H04N7/16

CPC分类号： H04N7/165 ,  H04N21/2143 ,  H04N21/4108 ,  H04N21/42219 ,  H04N21/42221 ,  H04N21/4382 ,  H04N21/6118 ,  H04N7/106 ,  H04N5/44

摘要： An apparatus for controlling a plurality of television sets in a cable distribution network, wherein each of the plurality of television sets contains an internal mechanism for controlling channel access to the television set, comprising a plurality of television addressable units, where each of the units controls a single television set, and each of the television addressable units has a demodulator and a microprocessor and associated memory operatively arranged to control the internal mechanism of said television set; a radio frequency transmitter operatively arranged to transmit a modulated radio frequency signal across the cable distribution network; and, a central processing unit operatively arranged to communicate with the plurality of television addressable units by generating control codes which are carried throughout the cable distribution network by the modulated radio frequency signal, wherein the control codes contain addressability information which enables the television addressable units to control the internal mechanisms of the television sets, and wherein the demodulator is operatively arranged to demodulate the modulated radio frequency signal, wherein all communications within the apparatus travel from the central processing unit to the plurality of television addressable units in one direction only.

摘要翻译： 一种用于控制电缆分配网络中的多个电视机的装置，其中所述多个电视机中的每一个包含用于控制对所述电视机的频道访问的内部机构，所述内部机构包括多个电视可寻址单元，其中每个所述单元控制 单个电视机，并且每个电视可寻址单元具有解调器和微处理器以及可操作地布置成控制所述电视机的内部机构的相关联的存储器; 射频发射器，被操作地布置成在所述电缆分配网络上传输调制的射频信号; 以及中央处理单元，其可操作地布置成通过生成通过所述调制射频信号在所述电缆分配网络中运送的控制代码与所述多个电视可寻址单元通信，其中所述控制代码包含可寻址性信息，使得所述电视可寻址单元 控制电视机的内部机制，并且其中解调器被可操作地布置成对调制的射频信号进行解调，其中该设备内的所有通信仅在一个方向上从中央处理单元行进到多个电视可寻址单元。