Vector quantizer
US5636322A · kind A · utility
8Cited by
4References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1994 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Sep 13, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A vector quantizer is disclosed which performs low bit rate coding of time sequential signals such as speech signals and image signals. A basis vector set is provided consisting of basis vectors greater in number than a predetermined number of bits and correspondingly, from the basis vector set, subsets corresponding in number to at most a predetermined number of bits are formed. The subsets thus formed include those consisting of at most a single basis vector and coefficient vector subsets formed from the coefficient vector set and determined according to the formed basis vector subsets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.