Microphone defect detection
US10887713B1 · kind B1 · utility
1Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2019 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Dec 11, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/003
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are an apparatus and method for testing a microphone of a device under test. The apparatus includes a speaker, a mount or bracket that secures a device under test a fixed distance from the speaker, and a controller. The controller causes the speaker to generate a test signal at various amplitudes. The controller receives an output signal generated by the microphone in response to the test signal and generates a prediction of whether the microphone is defective based on the output signal. The prediction may be generated by a machine-learning model such as a neural network or other trained classifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.