发明名称 METHOD AND SYSTEM FOR SUBSCRIPTION TELEVISION BILLING AND ACCESS
摘要 <p>A system for accumulating data at a central station from data accumulators at a plurality of remote locations over nondedicated telephone lines connected to telephone sets at the remote locations, particularly where the data is billing data from subscribers to a pay television system and the locations at which the data is accumulated are subscriber stations, while minimizing the possibility of interference with normal telephone service to the telephone set.</p>
申请公布号 CA1152662(A) 申请公布日期 1983.08.23
申请号 CA19820407688 申请日期 1982.07.20
申请人 BLOCK, ROBERT S.;MARTIN, JOHN R. 发明人 BLOCK, ROBERT S.;MARTIN, JOHN R.
分类号 H04N7/173;(IPC1-7):H04M11/00 主分类号 H04N7/173
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