发明名称 |
Circuit apparatus for recognizing earphone in mobile terminal |
摘要 |
<p>A circuit apparatus for recognizing an earphone in a mobile terminal is provided. The apparatus includes a plurality of devices, a wiring for recognizing the number of poles of the earphone, and a comparator. The plurality of devices are connected between a microphone bias power and a wiring that receives a signal from a microphone of an earphone. The wiring that recognizes the number of poles of the earphone branches from a wiring between at least two of the devices. The comparator compares a voltage of the wiring that recognizes the number of poles with a reference voltage to output a result signal.</p> |
申请公布号 |
EP2312813(B1) |
申请公布日期 |
2013.02.13 |
申请号 |
EP20100186563 |
申请日期 |
2010.10.05 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE, WOO-CHEOL |
分类号 |
H04M1/60;H01R24/58;H04M1/725;H04R1/10;H04R5/04;H04R29/00 |
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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