Enhancing dynamic range based on spectral content of signal
US9813814B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2016 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Aug 23, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/1536
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In accordance with embodiments of the present disclosure, an apparatus for providing an output signal to an audio transducer may include a signal path and a control circuit. The signal path may include an analog signal path portion having an audio input for receiving an analog signal, an audio output for providing an output signal, and a selectable analog gain, and configured to generate the output signal based on the analog signal and in conformity with the selectable analog gain and a digital path portion having a selectable digital gain and configured to receive a digital input signal and convert the digital input signal into the analog signal in conformity with the selectable digital gain. The control circuit may be configured to determine a spectral content of a signal indicative of the output signal and change the selectable digital gain and the selectable analog gain based on the spectral content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.