Decoding method of picture image data and decoding circuit therefore
US5285275A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1992 |
| Grant date | Feb 8, 1994 |
| Priority date | — |
| Expiry date | Mar 25, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of and a circuit for decoding compressed picture image data wherein compressed picture image data of a variable length can be decoded at a fixed high rate. A buffer memory into which compressed picture image data are to be written has a capacity greater than an amount of object compressed picture image data for one frame. Before compressed picture image data are written into the buffer memory, it is checked as to whether or not the buffer memory has an empty space into which such compressed picture image data for one frame can be written. When the checking proves that the buffer memory has such empty space, the compressed picture image data are written into the buffer memory, but on the contrary if the buffer memory has no such empty space, the picture image data are abandoned and not written into the buffer memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.