Method and apparatus for compressing and decompressing a voice message in a voice messaging system
US5960387A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Jun 12, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/09
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A processing system (210) subdivides (302) a voice message into a plurality of portions, and estimates (304) a plurality of preferred pitch periods corresponding to the plurality of portions. The processing system calculates (314) a plurality of segment sizes corresponding to the plurality of preferred pitch periods, and compresses (316) each of the plurality of portions by utilizing a corresponding one of the plurality of segment sizes in a speech compression algorithm, thereby generating a compressed message. The processing system determines (326) from the plurality of segment sizes a preferred segment size for decompressing the compressed message; and sends (328) the preferred segment size, along with the compressed message, to a receiver (122) for use in decompressing the compressed message in a speech decompression algorithm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.