Generating a hash value from a vector representing a data object
US8429216B2 · kind B2 · utility
5Cited by
6References
19Claims
0Family size
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Key dates
| Filing date | Sep 23, 2008 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Feb 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To generate at least one hash value for a feature vector that represents a data object, a discrete orthogonal transform is applied on a second vector produced from the feature vector. Applying the discrete orthogonal transform on the second vector produces a third vector. At least one value is selected from the third vector to produce the hash value. The at least one hash value is used to perform an action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.