Method and apparatus for generating hierarchical keys of digital assets
US7421081B2 · kind B2 · utility
7Cited by
5References
13Claims
0Family size
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Key dates
| Filing date | Apr 16, 2004 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | May 9, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for generating hierarchical keys of digital assets, the digital assets are arranged as at least one tree structure for management, a root node of the tree structure represents the complete set of the digital assets, other group nodes represents sub-sets in each level of the digital assets respectively, and the nodes in the lowest level are leaf nodes, said method includes: generating the key of the root node; and starting with the key of the root node, using the key of a father node to compute level by level the keys of its child nodes according to a predetermined function, through to leaf nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.