Partial rasterization of web page tiles
US9904665B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2015 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | May 23, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/122
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and device for rasterizing content includes partitioning a webpage into webpage tiles that are associated with a front buffer and a back buffer. A rasterized version of each of the tiles may be stored in the associated front buffer, and each may include new content. If a previous copy of the at least one tile is found in memory, the new content is rasterized onto the previous copy. If a previous copy is not found, and if the proportion of the new content of the at least one tile is less than a threshold, the new content is rasterized onto the front buffer. If the proportion of the new content is above the threshold, and if unchanged content in the at least one tile is complex, then the unchanged content is copied to the back buffer and the new content is rasterized onto the associated back buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.