Method and apparatus for generating random numbers from a communication signal
US6430170B1 · kind B1 · utility
94Cited by
8References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1999 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | May 27, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for generating random numbers in a wireless communication network is presented. The noise present in the signal received by a wireless receiver is extracted to form random numbers. Wireless transmitters typically are identified by a synchronization signal. In acquiring the synchronization signal, a wireless receiver generates a plurality of psuedorandom sequences, despreads an incoming signal, integrates the resulting signal, and performs an energy computation to calculate an energy measure. One or more energy measures are collected in a pool of bits, and the bits are hashed to extract random numbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.