发明授权
- 专利标题： Automatic-switching wireless communication device
- 专利标题（中）： 自动切换无线通信设备
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申请号： US10595758申请日： 2004-11-10
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公开(公告)号： US07826805B2公开(公告)日： 2010-11-02
- 发明人: Masahisa Masuda , Yasuhiro Kume
- 申请人： Masahisa Masuda , Yasuhiro Kume
- 申请人地址： US OR Lake Oswego
- 专利权人： Matech, Inc.
- 当前专利权人： Matech, Inc.
- 当前专利权人地址： US OR Lake Oswego
- 代理机构： Stolowitz Ford Cowger LLP
- 国际申请： PCT/US2004/037406 WO 20041110
- 国际公布： WO2005/048574 WO 20050526
- 主分类号： H04B1/38
- IPC分类号： H04B1/38
摘要：
A base unit and a handset comprise a wireless part, a control part, and a transmission (151) and reception part (150), respectively. Communications are switched by either of the two ways: PTT switching and tone generation in the base unit, and tone detection in the handset or PTT switching in the base unit, and voice detection in the handset. It is preferable that the transmission (151) and reception (150) part of the handset includes a single transducer type headphone. It is also preferable that photo-coupler (41, 43) and a photo-switch (42) are provided at connection point of signal paths between the transmission (151) and reception part (150), the control part, and between the control part and the wireless part.
公开/授权文献
- US20080274764A1 Automatic-Switching Wireless Communication Device 公开/授权日：2008-11-06
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