Method and system for managing image files in a hierarchical storage management system
US7836021B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jan 15, 2004 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Aug 9, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/913
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system evaluates file metadata for files maintained in the secondary storage of a host system to determine whether one or more image files are to be downgraded. The image files selected for downgrading are reduced in size by one or more downgrading operations. The resulting file is stored in secondary storage so an image file remains in secondary storage that does not require the memory space of the previous image file. The downgrade operations may include lossless compression, lossy compression, bit depth reduction, resolution reduction, color palette, binary imaging, or a combination of a plurality of downgrade operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.