Unified speech/audio codec (USAC) processing windows sequence based mode switching
US8954321B1 · kind B1 · utility
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Key dates
| Filing date | Nov 26, 2009 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Dec 10, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.