Correction of frame loss during signal decoding
US9613629B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2014 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | Jan 30, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2019/0016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A signal processing device, media, and method are provided, where a signal comprises a succession of samples distributed in successive frames. The processing is implemented during decoding of such a signal in order to replace at least one signal frame lost in decoding, and comprising in particular: a) searching, in a valid signal available to the decoder, for a signal segment of length corresponding to a period set as a function of the valid signal; b) analyzing a spectrum of the segment in order to determine spectral components of the segment; and c) synthesizing at least one replacement frame for the lost frame by construction of a synthesized signal from at least a portion of the spectral components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.