Method for privacy preserving hashing of signals with binary embeddings
US8837727B2 · kind B2 · utility
3Cited by
4References
18Claims
0Family size
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Key dates
| Filing date | Nov 8, 2011 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Aug 10, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04K1/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A hash of signal is determining by dithering and scaling random projections of the signal. Then, the dithered and scaled random projections are quantized using a non-monotonic scalar quantizer to form the hash, and a privacy of the signal is preserved as long as parameters of the scaling, dithering and projections are only known by the determining and quantizing steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.