发明授权
- 专利标题： Data communication equipment
- 专利标题（中）： 数据通信设备
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申请号： US724541申请日： 1985-04-18
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公开(公告)号： US4773080A公开(公告)日： 1988-09-20
- 发明人: Toshifumi Nakajima , Hirofumi Yoshiyama , Hisao Terajima
- 申请人： Toshifumi Nakajima , Hirofumi Yoshiyama , Hisao Terajima
- 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： JPX59-82072 19840425; JPX59-83020 19840426
- 主分类号： H04M11/06
- IPC分类号： H04M11/06 ; H04N1/327 ; H04N1/333 ; H04M11/08 ; H04N1/32
摘要：
A data communication equipment has a data communication device, a speech communication device, a selection device for selecting the data communication device or the speech communication device to set the data communication equipment in a data communication mode or a speech communication mode, a detection device for detecting non-data communication mode of a partner station when the data communication equipment is set in the data communication mode, and an output device for outputting a sound on the basis of a sound signal through the communication line.
公开/授权文献
- US4130000A Drill string shock absorber 公开/授权日：1978-12-19
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