Systems and methods for detection of load impedance of a transducer device coupled to an audio device
US9578417B2 · kind B2 · utility
1Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2013 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Jan 25, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/05
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.