| 发明名称 |
A detecting circuit for detecting the presence of a headset connected to a telephone, and a method for detecting a headset connected to a telephone |
| 摘要 |
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| 申请公布号 |
IES20030549(A2) |
申请公布日期 |
2003.11.26 |
| 申请号 |
IES20030549 |
申请日期 |
2003.07.25 |
| 申请人 |
LAKE ELECTRONIC TECHNOLOGIES LIMITED |
发明人 |
MICHAEL TOPE |
| 分类号 |
H04M1/00;H04R1/10;H04R29/00;(IPC1-7):H04M1/00 |
主分类号 |
H04M1/00 |
| 代理机构 |
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| 主权项 |
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