System and method for data transmission over arbitrary media using physical encryption
US8315387B2 · kind B2 · utility
38Cited by
1References
34Claims
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Key dates
| Filing date | Jun 10, 2009 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Sep 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for a secure communication network using AlphaEta quantum encryption is provided. A polarization insensitive optical receiver based on a 90 degrees hybrid coupler is used for the detection and digitization of optically encrypted signals. Once digitized, such signals can be decrypted, stored, or re-transmitted over arbitrary media such as using RF wireless means. Alternatively, the signal can be generated directly for transmission over RF wireless nodes. The system may include nodes for retransmitting the signal without decrypting it, allowing for secure communication among specific users.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.