System and method to reduce speech delay and improve voice quality using half speech blocks
US6772112B1 · kind B1 · utility
37Cited by
7References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 31, 2000 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Oct 29, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/2656
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for wireless communication using half speech blocks which results in half the number of coded bits as a full speech block after coding. The half speech block can be created with a lower speech rate mode of an adaptive multi-rate vocoder. The reliability of the first speech frame is somewhat lower; however, this is not expected to significantly impact voice quality. Further, reliability can be compensated for by increasing power some on the less reliable blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.