Method for coding speech at low bit rates
US4797925A · kind A · utility
113Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1986 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Sep 26, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for coding speech at low bit rates is disclosed. As compared to the well known stochastic coding method, the method of the present invention requires substantially less computational resources. The reduction of required resources is achieved by utilizing a set of code sequences in which each code sequence is related to the previous code sequence. For example, each succeeding code sequence may be derived from the previous code sequence by removing one or more elements from the beginning of the previous sequence, and adding one or more elements to the end of the previous sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.