公共英语专利名称：Authorising coded signals 发明人：Gerald O. Crowther
steeel申请号：US07/243245
申请日：19880908
概率的拼音>snake是什么意思>ik是什么意思的缩写
公开号：US04864614A
公开日：
教育部雅思考试中心
19890905
专利内容由知识产权出版社提供西瓜的英文
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胖妞服饰搭配摘要：In a transmission system authorization codes are transmitted to authorize subscribers to receive scrambled signals in an intelligible manner, such a system being a television transmission system. If each subscriber were assigned a unique authorization code an extremely long period of time would be required to transmit the codes for a national broadcast system. With the prent arrangement, the authorizing code includes a multi-bit binary code word (18,20) which is unique to a group of subscribers, this code word being followed by a train of binary puls (19',19";21', 21",) the number of puls in the train being not less than the number of subscribers in the group. Each subscriber is allocated a unique pul position in the pul train (19',19";21',21",) at which position the state of the pul either authorizes or inhibits the subscriber from receiving the scrambled signal intelligibly.
directoryindex申请人：U.S. PHILIPS CORPORATION
代理人：Michael E. Marion
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