发明授权
EP3047571B1 SYSTEMS AND METHODS FOR DETECTION OF LOAD IMPEDANCE OF A TRANSDUCER DEVICE COUPLED TO AN AUDIO DEVICE
有权
用于检测耦合到音频设备的传感器设备的负载阻抗的系统和方法
- 专利标题： SYSTEMS AND METHODS FOR DETECTION OF LOAD IMPEDANCE OF A TRANSDUCER DEVICE COUPLED TO AN AUDIO DEVICE
- 专利标题（中）： 用于检测耦合到音频设备的传感器设备的负载阻抗的系统和方法
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申请号： EP14777232.1申请日： 2014-09-15
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公开(公告)号： EP3047571B1公开(公告)日： 2018-01-17
- 发明人: ILANGO, Anand , ALLEN, Daniel John , JINDAL, Vivek , SATOSKAR, Aniruddha , THANDRI, Bharath Kumar
- 申请人： Cirrus Logic, Inc.
- 申请人地址： 800 West 6th Street Austin, TX 78701 US
- 专利权人： Cirrus Logic, Inc.
- 当前专利权人： Cirrus Logic, Inc.
- 当前专利权人地址： 800 West 6th Street Austin, TX 78701 US
- 代理机构： Knöner, Gregor
- 优先权： US201361878138P 20130916; US201314031287 20130919; US201314036136 20130925; US201314036682 20130925
- 国际公布： WO2015039002 20150319
- 主分类号： H03F1/02
- IPC分类号： H03F1/02 ; G01R31/28 ; H03F1/52 ; H03F3/181 ; H03F3/183 ; H04R3/00
摘要：
In accordance with systems and methods of the present disclosure, an audio device may include an electrical terminal, an audio circuit, and a transducer load detection circuit. The electrical terminal may couple a transducer device to the audio device. The audio circuit may generate an analog audio signal, wherein the analog audio signal is coupled to the electrical terminal. The transducer load detection circuit may detect a load impedance of the transducer device when the transducer device is coupled to the audio device from characteristics measured at the electrical terminal.
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