发明名称 | Electronic device adapted for detecting a vehicle audio system | ||
摘要 | According to some aspects an electronic device adapted to detect whether it is coupled to an audio system. The electronic device includes a pulse generator adapted to generate a pulse on a ground return line of the electronic device, and a detector adapted to observe if a response signal is received by the electronic device corresponding to the pulse. If the response signal is received, the electronic device determined that it is coupled to the audio system. | ||
申请公布号 | US9313592(B2) | 申请公布日期 | 2016.04.12 |
申请号 | US201213678615 | 申请日期 | 2012.11.16 |
申请人 | BLACKBERRY LIMITED | 发明人 | Poulsen Jens Kristian |
分类号 | H04R29/00 | 主分类号 | H04R29/00 |
代理机构 | Perry + Currier, Inc. | 代理人 | Perry + Currier, Inc. |
主权项 | 1. A method comprising: at a portable electronic device comprising an audio jack that is adapted to be coupled to an audio system: generating, at a pulse generator of the portable electronic device, a pulse on a ground return line of the audio jack of the portable electronic device;in response to detecting, at a detector of the portable electronic device that is coupled to a charging ground line of the portable electronic device, a response signal corresponding to the pulse on the charging ground line, determining that the portable electronic device is coupled to the audio system; andabsent detecting the response signal at the detector, determining that the portable electronic device is not coupled to the audio system. | ||
地址 | Waterloo, Ontario CA |