Method of managing storage and retrieval of data objects
US7979394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2006 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Feb 25, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/30
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A technique for managing storage of a data object in a storage device involves receiving the data object (A) to store in the storage device, where the data object has an indicator bit pattern (P). Successive compression data transformations are applied to data object A to obtain respective corresponding compressed data objects, and one of these compressed data objects is selected, such that the selected compressed data object (C) has the shortest length with respect to the remaining compressed data objects. Compression information (I) is then associated with the compression data transformation used to generate data object C, and a threshold value T is calculated at least partly from the length of compression information I. If length (C)+T≧length (A), then the indicator bit pattern of data object A is reset and the data object A is written to the storage device. If length (C)+T<length (A), then the indicator bit pattern of data object C is set, compression information I is incorporated into data object C, and data object C is written to the storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.