Systems and methods for sound compression
US7299172B2 · kind B2 · utility
0Cited by
7References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 7, 2004 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Oct 7, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Embodiments of the invention achieve increased compression of audio data in comparison to prior art ADPCM compression schemes using modest processing power and resources. For one embodiment, an asymmetric ADPCM encoding scheme is implemented to increase apparent encoding resolution for a specified number of encoding bits. Additionally, or alternatively, such techniques as pattern recognition and encoding, as well as calculation simplification, are employed to increase data compression of audio data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.