Electronic circuit for a microphone and microphone
US10412486B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2015 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Jul 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2410/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The electronic circuit having an input stage for pre-amplifying an electrical input signal of the electronic circuit provided by a transducer. The electronic circuit has an output stage for providing a microphone output signal by processing an output signal of the input stage. The electronic circuit has an adjustable output load arranged and configured for setting a current draw of the output stage. Additionally, the electronic circuit has a measurement circuit configured to capture the output signal of the input stage and an automatic control circuit configured to adjust the adjustable output load dependent on the captured output signal of the input stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.