Spectral enhancing method and device
US8239208B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 9, 2010 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Apr 9, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/038
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method for spectral enhancement and a device therefor. The inventive method is a method for enhancing spectral content of a signal having an incomplete spectrum including a first spectral band, the method including the following steps: at least transposing the spectral content of the first band into a second spectral band not included in the spectrum to generate a transposed spectrum signal, with spectrum limited to the second spectral band; transforming the spectrum of the transposed spectrum signal to obtain an enhancing signal; combining the incomplete spectrum signal and the enhancing signal to produce a spectrum enhanced signal. The invention is characterized in that the spectral content is subjected to a whitening step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.