Mechanism for applying transforms to multi-part files
US7523221B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2003 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Sep 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/258
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Described is a system and method for applying transforms to multi-part files. A request is received to access a stream within a multi-part file. Upon receipt of the request, a list of transforms associated with the stream is identified. The list is also included within the multi-part file. The transforms specified in the list of transforms are performed on data before completing the request. If the request is a write, the transforms encode the data. If the request is a read, the transforms decode the data. The list of transforms is order dependent. The list of transforms includes a data structure having a first stream that includes a map that correlates the stream with a name for the list of transforms. A second stream that lists each of the transforms for the stream. A third stream for each of the transforms listed that identifies information associated with the transform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.