Time varying data permutation apparatus and methods
US9564926B2 · kind B2 · utility
5Cited by
7References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 13, 2014 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Dec 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0071
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Multiple data permutation operations in respective different dimensions are used to provide an overall effective data permutation using smaller blocks of data in each permutation than would be used in directly implementing the overall permutation in a single permutation operation. Data that has been permuted in one permutation operation is block interleaved, and the interleaved data is then permuted in a subsequent permutation operation. A matrix transpose is one example of block interleaving that could be applied between permutation operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.