发明授权
- 专利标题： Extendable telephone handset with flexible electrical interconnection and matched impedance acoustical interface
- 专利标题（中）： 可扩展电话听筒具有灵活的电气互连和匹配的阻抗声学接口
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申请号： US630227申请日： 1996-04-10
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公开(公告)号： US5586183A公开(公告)日： 1996-12-17
- 发明人: Larry A. Marcus , William J. McLaughlin
- 申请人： Larry A. Marcus , William J. McLaughlin
- 申请人地址： NJ Murray Hill
- 专利权人： Lucent Technologies Inc.
- 当前专利权人： Lucent Technologies Inc.
- 当前专利权人地址： NJ Murray Hill
- 主分类号： H04M1/02
- IPC分类号： H04M1/02 ; H04M1/03 ; H04M1/00
摘要：
A compact telephone handset, when not in use, is shorter in length than the distance between a user's ear and mouth and has an extendable boom for lengthening the telephone to a length equal to the distance between the user's ear and mouth. The handset has a receiver device and a microphone device with one of the devices being located on the main body of the handset and the other device being located on a slidable boom which is extendable and retractable relative to the main body.
公开/授权文献
- US4637548A Releasable locking assembly for sprinkler valve units 公开/授权日：1987-01-20
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