发明授权
US5970389A Portable one-way radio pager with an encoded sound signal transmitter
and identification method using same
失效
具有编码声音信号发射器的便携式单向无线寻呼机和使用其的识别方法
- 专利标题： Portable one-way radio pager with an encoded sound signal transmitter and identification method using same
- 专利标题（中）： 具有编码声音信号发射器的便携式单向无线寻呼机和使用其的识别方法
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申请号： US930905申请日： 1998-02-19
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公开(公告)号： US5970389A公开(公告)日： 1999-10-19
- 发明人: Jacques Lewiner , Eric Carreel
- 申请人： Jacques Lewiner , Eric Carreel
- 专利权人： Lewiner; Jacques,Carreel; Eric
- 当前专利权人： Lewiner; Jacques,Carreel; Eric
- 优先权： FRX9504181 19950407
- 主分类号： G08B5/22
- IPC分类号： G08B5/22 ; H04Q7/00
摘要：
The invention relates to a portable one-way radio pager comprising pager means (4, 5, 6) for receiving radio messages, a memory (8) for storing messages, a screen (2), a keypad (3), a CPU (7), and a loudspeaker (9). The CPU is designed to recognize specific "certification primary code" messages and to cause an encoded sound signal to be emitted by the loudspeaker as a function of a secondary code keyed in by a user via the keypad, and of an additional code accessible to the CPU. The encoded sound signal enables the user to be identified.
公开/授权文献
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