Lattice and trellis-coded quantization
US5297170A · kind A · utility
269Cited by
4References
65Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1990 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Aug 21, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/3082
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Vectors are quantized by representing the vectors by quantized values using a codebook having granular regions which are based on a coset code, and which lie inside a boundary region which is based on another coset code, the boundary region being other than an N-cube and other than the Voronoi region of a sublattice .LAMBDA..sub.b =M.LAMBDA..sub.g of a lattic .LAMBDA..sub.g upon which the granular regions may have been based.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.