Coding apparatus
US6266447A · kind A · utility
5Cited by
22References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1995 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Apr 12, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A coding apparatus includes a large block forming unit for forming a large block of sample values of an input signal, a small block forming unit for dividing the large block into a plurality of small blocks, a first coding unit for coding the small blocks of the input signal by using a difference signal obtained by subtracting a predicted value from the small blocks of the input signal, a second coding unit for coding the small blocks of the input signal without using the difference signal, and a selecting unit for selecting the first or second coding unit in units of large blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.