Invention Grant
US09479868B2 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装置的换能器装置的负载阻抗的系统和方法
- Patent Title: Systems and methods for detection of load impedance of a transducer device coupled to an audio device
- Patent Title (中): 用于检测耦合到音频装置的换能器装置的负载阻抗的系统和方法
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Application No.: US14036136Application Date: 2013-09-25
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Publication No.: US09479868B2Publication Date: 2016-10-25
- Inventor: Anand Ilango , Daniel John Allen , Aniruddha Satoskar
- Applicant: Cirrus Logic, Inc.
- Applicant Address: US TX Austin
- Assignee: Cirrus Logic, Inc.
- Current Assignee: Cirrus Logic, Inc.
- Current Assignee Address: US TX Austin
- Agency: Jackson Walker L.L.P.
- Main IPC: H04R3/00
- IPC: H04R3/00 ; H04R29/00 ; G10K11/178 ; H03F1/02 ; H03F3/181 ; H03F3/52 ; H03F3/185 ; H03F1/52 ; H03F3/183 ; H04R5/04

Abstract:
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.
Public/Granted literature
- US20150078559A1 SYSTEMS AND METHODS FOR DETECTION OF LOAD IMPEDANCE OF A TRANSDUCER DEVICE COUPLED TO AN AUDIO DEVICE Public/Granted day:2015-03-19
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