Method and apparatus to enhance audio quality for digitized voice transmitted over a channel employing frequency diversity
US6970519B2 · kind B2 · utility
0Cited by
1References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 29, 2003 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | May 29, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/005
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus and corresponding method in a wireless mobile device (10) for classifying each of a plurality of audio bits obtained from a vocoder (104) into one class of a plurality of classes according to a predetermined importance of each audio bit, wherein each of the plurality of classes has an associated error correction process and an associated repeat diversity process. Error correction and repeat diversity are applied to a portion of the plurality of classes based on the associated error correction and repeat diversity processes. The method may be implemented by a processor (10) executing routines stored in a memory (110).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.