Moving picture coding and/or decoding systems, and variable-length coding and/or decoding system
US5852469A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1996 |
| Grant date | Dec 22, 1998 |
| Priority date | — |
| Expiry date | Mar 15, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A moving picture coding and/or decoding system includes a encoder for coding input image data, a divider for dividing a code string supplied from the encoder, into a plurality of code string, a reorderer for arranging at least one of the plurality of code string in the forward direction from the head to the end, and at least one of the other code string in the backward direction from the head to the end. A variable-length coding system includes a code-word table for storing a plurality of code words so that the code words correspond to source symbols, and an encoder for selecting a code word corresponding to the source symbol inputted from the code-word table and for outputting the selected code word as coded data. The plurality of code words can be decoded in either of the forward and backward directions. The plurality of code words are configured so that the pause between codes can be detected by a predetermined weight of the code word (in the case of a binary code, the number of "1" or "0" in the code word).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.