发明名称 |
VOICE CONFERENCE SYSTEM AND WIRELESS TRANSMISSION SYSTEM USED BY IT |
摘要 |
PROBLEM TO BE SOLVED: To provide a voice conference system that can hold a pleasant phone conference by eliminating inconvenience and restrictions by cables in phone conferences. SOLUTION: A wireless module 1 transmits and receives a voice signal in terms of a radio wave. Analog/digital conversion circuits 2-1-2-n convert a digital voice signal transmitted and received in a radio wave into an analog voice signal or converts the analog voice signal into a digital signal transceived in a radio wave. A voice signal distributing/coupling circuit 3 couples the voice signals whose number is number of connected headsets or conversely branchs the voice signal received from the telephone network 4 to voice signals whose number is number of the connected head sets.
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申请公布号 |
JP2002344635(A) |
申请公布日期 |
2002.11.29 |
申请号 |
JP20010145735 |
申请日期 |
2001.05.16 |
申请人 |
NEC MIYAGI LTD |
发明人 |
KOMINATO TETSUO |
分类号 |
H04M3/56;H04M1/00;H04M1/02;H04M1/03;H04M1/733;(IPC1-7):H04M3/56 |
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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