High efficiency voice coding system
US4985923A · kind A · utility
9Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1989 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Mar 27, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A voice coding system for separating and coding voice information into spectrum envelope information and voice source information, with the intention of compressing the amount of information for efficient coding of vocal audio signals through the control of the voice source information based on the fact that the spectrum envelope information and voice source information highly correlate with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.