Method and apparatus for avoiding redundant data retrieval during video decoding
US6459737B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 1999 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | May 7, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for decoding compressed video in a system with a central processing unit (CPU) coupled to a graphics controller, the method arising from the following steps. First, decode a first portion of a first frame using the CPU to produce a first data. Next, generate a first signal. Then, perform motion compensation using the first data and the graphics controller in response to the first signal. Next, generate a second signal. Then, decode a second portion of the first frame using the CPU to produce a second data in response to the second signal. Next, generate a third signal. Then, perform motion compensation using the second data and the graphics controller in response to the third signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.