发明名称 Cross point mixer for a telephone set
摘要 Disclosed is a cross point mixer including a cross point switch and a mixing circuit provided on the output side. The cross point switch includes nxm switches arranged in a matrix manner. Each of the switches corresponds to one of a plurality of n input terminals receiving signals, and corresponds to one of a plurality of m output terminals outputting signals. When on, each of the switches forms a signal transmission path which connects a corresponding input terminal with a corresponding output terminal. The mixing circuit provided on the output side receives signals from the n switches correspondingly associated with the output terminal, and subjects the signals to mixing for output to the output terminal.
申请公布号 US5457740(A) 申请公布日期 1995.10.10
申请号 US19920980257 申请日期 1992.11.23
申请人 ROHM CO., LTD. 发明人 NODA, MITSUHIKO
分类号 H04M1/00;H04M1/65;H04M1/725;H04Q3/52;(IPC1-7):H04M1/26 主分类号 H04M1/00
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