发明名称 |
TWO-WAY COMMUNICATIONS DEVICE HAVING A SINGLE TRANSDUCER |
摘要 |
Embodiments of the invention provide a small and economical two-way communications device that has both an excellent echo-cancellation function that substantially suppresses echoes over the entire frequency range and an excellent voice-operated exchange function that provides natural switching of conversation sounds while protecting against unnatural disconnection or echoes during conversation, even when a reception signal and a transmission signal are superimposed in a single transducer. |
申请公布号 |
KR20060105770(A) |
申请公布日期 |
2006.10.11 |
申请号 |
KR20067011295 |
申请日期 |
2006.06.09 |
申请人 |
MATECH, INC. |
发明人 |
MASUDA MASAHISA;KUME YASUHIRO |
分类号 |
H04R3/00;H04M;H04M1/00;H04M1/60;H04M9/00;H04M9/08;H04R17/00 |
主分类号 |
H04R3/00 |
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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