| 发明名称 | Circuit apparatus for recognizing earphone in mobile terminal | ||
| 摘要 | 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. | ||
| 申请公布号 | US9124709(B2) | 申请公布日期 | 2015.09.01 |
| 申请号 | US201012897995 | 申请日期 | 2010.10.05 |
| 申请人 | Samsung Electronics Co., Ltd. | 发明人 | Lee Woo-Cheol |
| 分类号 | H04R1/10;H04M1/60;H01R24/58;H04R5/04;H04M1/725 | 主分类号 | H04R1/10 |
| 代理机构 | Jefferson IP Law, LLP | 代理人 | Jefferson IP Law, LLP |
| 主权项 | 1. A circuit apparatus for recognizing an earphone in a mobile terminal, the apparatus comprising: a plurality of devices connected between a microphone bias power and a wiring that receives a signal from a microphone of an earphone; a wiring, for recognizing the number of poles of the earphone, that branches from between at least two of the devices and that is separate from microphone wiring of an earphone; and a comparator for comparing a voltage of the wiring that recognizes the number of poles with a reference voltage to output a result signal. | ||
| 地址 | Suwon-si KR | ||