Sound signal enhancement device
US10741195B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 15, 2016 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Jun 7, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A first signal weighting processor outputs a weighted signal obtained by performing a weighting on part of an input signal representing a feature of a target signal included in the input signal. A neural network processor outputs an enhancement signal for the target signal by using a coupling coefficient. An inverse filter cancels the weighting on the feature representation of the target signal in the enhancement signal. A second signal weighting processor outputs a weighted signal obtained by performing a weighting on part of a supervisory signal representing a feature of a target signal. An error evaluator output a coupling coefficient to have a value indicating that a learning error between the weighted signal output from the second signal weighting processor and the output signal of the neural network processor is less than or equal to a set value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.