Method and apparatus for re-ordering of a bit stream
US6801667B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2000 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Jan 25, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/64
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of selecting transform segments from a data stream (426), the stream comprising a plurality of blocks each comprising a plurality of transform segments, is disclosed. The selection reorders the transform segments in a block, and comprises, for each said block, steps of selecting a first set of transform segments (426-432) suitable for direct inverse transformation to form a first data segment, selecting a second transform segment (1612) which is directly inverse transformable given availability of the first set (426-432), identifying a third transform segment (1608, 1610) which is not directly inverse transformable given availability of the first set (426-432) and the second transform segment (1612), and selecting a fourth transform segment (1610, 1608) which is required to support direct inverse transformation of the third transform segment (1608, 1610).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.