发明授权
- 专利标题： Communication apparatus having a non-ringing call receiving mode and an energy-saving stand-by mode
- 专利标题（中）： 具有非振铃呼叫接收模式和节能待机模式的通信装置
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申请号： US699942申请日： 1996-08-20
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公开(公告)号： US5909488A公开(公告)日： 1999-06-01
- 发明人: Shigeru Koizumi , Masao Kiguchi
- 申请人： Shigeru Koizumi , Masao Kiguchi
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-213531 19950822; JPX7-290520 19951012
- 主分类号： H04N1/00
- IPC分类号： H04N1/00 ; H04N1/327 ; H04M1/00
摘要：
A communication apparatus has a power saving stand-by mode for reducing power consumption during stand-by and a non-ringing call receiving mode for communication without ringing an attached telephone set at the arrival of a call. In the power saving stand-by mode, an operation state of a relay for attaining the non-ringing call receiving mode is held by a stand-by power supply to render both modes compatible to each other.
公开/授权文献
- US4187210A Homogeneous, highly-filled, polyolefin composites 公开/授权日：1980-02-05