发明名称 |
Method and system for automatically activating and deactivating a speakerphone |
摘要 |
A novel telephone system and method for activating a speakerphone in response to an incoming call based upon the presence or absence of a subscriber within a predetermined proximity zone. The telephone system has a ring detector for detecting a ring signal in response to an incoming call received via a central switching network, a proximity sensor for sensing the presence or absence of a subscriber within a predetermined proximity zone of the telephone system, and a control unit for automatically activating the speakerphone to establish communication with the caller when the subscriber is within the predetermined proximity zone and deactivating the speakerphone in response to detecting a busy tone generated by the central switching network when the call is terminated.
|
申请公布号 |
US5712911(A) |
申请公布日期 |
1998.01.27 |
申请号 |
US19950527561 |
申请日期 |
1995.09.13 |
申请人 |
SAMSUNG ELECTRONICS CO. LTD. |
发明人 |
HER, JU-WON |
分类号 |
H04M1/60;(IPC1-7):H04M1/64 |
主分类号 |
H04M1/60 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|