Image frame buffer management
US8638337B2 · kind B2 · utility
7Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2009 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Mar 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/63
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are methods and systems for tracking which data tiles have changed within an image frame. In an embodiment, each cell of a tile change list buffer may contain a frame number and updated when a tile is received from encoder. The frame number may be used as a base pointer for a particular frame buffer. When a frame is decoded, the contents of the tile change list buffer may be copied from the current tile change list buffer to the next buffer. This process may reduce memory traffic because the unchanged tile data does not have to be copied from frame to frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.