Encoding apparatus, decoding apparatus, encoding method and decoding method
US6188793A · kind A · utility
13Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1997 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Nov 19, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/93
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
By combining a plurality of encoding methods actively, an encoding efficiency is enhanced. The first encoder encodes a result of determination whether a prediction error is zero or not. The second encoder encodes the prediction error unless the prediction error is zero. The third encoder encodes the prediction error regardless of whether the prediction error is zero or not. The mode determinator determines the encoding mode, and the encoding controller selectively operates the first encoder, the second encoder, and the third encoder according to the encoding mode determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.