发明名称 |
Apparatus and method for automatically switching a headset between a telephone and a second audio source |
摘要 |
An apparatus and method are disclosed for connecting a headset alternately to a telephone line and an audio device. The apparatus includes an audio connector for connecting the apparatus to the audio device, a telephone connector for connecting the apparatus to the telephone line, and a headset connector for connecting the apparatus to the headset. The apparatus also includes a switching circuit connected to the audio, telephone and headset connectors. The switching circuit connects the telephone connector to the headset connector in response to sensing a voltage greater than a predetermined threshold on the telephone line. When the voltage sensed returns to a value less than the predetermined threshold value, the switching circuit reconnects the headset connector to the audio connector.
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申请公布号 |
US6091812(A) |
申请公布日期 |
2000.07.18 |
申请号 |
US19960747468 |
申请日期 |
1996.11.12 |
申请人 |
SIEMENS INFORMATION AND COMMUNICATION NETWORKS, INC. |
发明人 |
IGLEHART, DAVID;LESTER, LELAND;JREIJ, ELIE ANTOUN;TRUONG, LUC;LEVENE, WILLIAM E. |
分类号 |
H04M1/60;H04M1/82;H04R3/00;(IPC1-7):H04M3/51;H04M1/08 |
主分类号 |
H04M1/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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