Multimedia data transmission system
US5291286A · kind A · utility
256Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1993 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Feb 9, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/236
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A vector quantizer which transmits the input vector of the time when the minimum distortion is larger than the preset distortion threshold value and stores such input vector into the second code book as the new quantizing representative vector for the use in the successive vector quantizing processes. Further, since the first and second code book constitute in the form of tree-structure, calculation for search may be executed at a high speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.