Coder and decoder for recording and reading binary data sequences using a digital video recorder
US6317558A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1997 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Nov 14, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1434
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The coder makes it possible to convert a succession of video and/or audio blocks, consisting of binary combinations of N bits, into a succession of binary data blocks consisting of combinations of N bits, each binary data block corresponding to one video and/or audio block. The coder codes each end binary combination 0 or 2.sup.N-1 of each video and/or audio block in the form of a coded binary combination consisting of a nature information item In and a position information item Ip. The nature information item In gives the nature, 0 or 2.sup.N-1, of the end binary combination, and the position information item Ip gives the position which the end combination occupies in the video block. Conversely, the decoder makes it possible to reconstruct a succession of video and/or audio blocks, consisting of binary combinations of N bits, from a succession of binary data blocks such as the ones mentioned above, that is to say ones for which the end combinations 0 or 2.sup.N-1 of each video and/or audio block are coded in the form of a nature information item In and a position information item Ip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.