发明名称 |
TERMINAL FOR MULTI-POINT SYSTEM PHONE CONFERENCE |
摘要 |
PROBLEM TO BE SOLVED: To provide a terminal for multi-point system phone conference that makes simultaneous voice speech among N points so as to make simultaneous voice speech with a plurality of people without causing leakage of voice to surrounding people and makes simultaneous voice speech with different communication channels. SOLUTION: A voice communication terminal 1 has connection terminals 13-1-13-N connected to N-sets of 1st-N-th 2W phone lines and a voice branch coupler 12 that branches/couples a voice signal. A voice terminal 2 has M sets of voice input output terminals 27-1-27-M to which headsets 3-1-3-M can connect provided with a means capable of simultaneous speech with a plurality of people and a means that causes no sound leakage to surrounding. The voice communication terminal 1 has connection terminals 14-1-14-N, 15-1-15-N for N-sets of 4W lines from 1st to N-th, a PHS or mobile phone terminal in addition to the 2W telephone line and N-sets of changeover switches 11-1-11-N capable of selecting one communication line among the N lines.
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申请公布号 |
JP2001333183(A) |
申请公布日期 |
2001.11.30 |
申请号 |
JP20000152299 |
申请日期 |
2000.05.24 |
申请人 |
NEC MIYAGI LTD |
发明人 |
SUZUKI KAZUHIRO;ENDO KATSUNORI;SHIBUYA TORU |
分类号 |
H04M3/56;H04M1/733;(IPC1-7):H04M1/733 |
主分类号 |
H04M3/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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