发明名称 Digital added main line system
摘要 <p>A method of concurrently receiving and transmitting multiple telephone signals between a first location and a second location over a single twisted pair, said method comprising: at said first location: receiving a first digital signal from said second location over said single twisted pair; converting said first digital signal into a first higher-rate binary signal; converting said first higher-rate binary signal into "n" analog telephone signals, where "n" is greater than 1; converting "m" analog telephone signals into a second higher-rate binary signal, where "m" is greater than 1; converting said second higher-rate binary signal into a second digital signal; transmitting said second digital signal over said single twisted pair to said second location; and wherein said first and second digital signals are selected from the group consisting of 2B1Q signals and 4B3T signals.</p>
申请公布号 EP0849971(A2) 申请公布日期 1998.06.24
申请号 EP19970203988 申请日期 1990.07.24
申请人 RAYCHEM CORPORATION 发明人 BLIVEN, DAVID
分类号 H04J3/04;H04J3/18;H04J99/00;H04M11/06;H04Q3/60;H04Q11/04;(IPC1-7):H04Q11/04 主分类号 H04J3/04
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