Method and apparatus for random sequence generator
US6188294A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1999 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Jul 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B29/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus having a white noise source which is coupled to a gain stage having an amplifier. The gain stage is coupled to a noise shaping stage which is also coupled to a decision circuit. Another apparatus having a white noise source which is differentially coupled to a gain stage that has a cascade of open loop amplifiers. The gain stage is differentially coupled to a noise shaping stage which is also differentially coupled to a decision circuit. A method that involves differentially coupling white noise into a gain stage. The white noise is differentially amplified with an amplifier which produces a first white noise signal. 1/f noise and offset voltage is substantially removed from said first white noise signal to produce a second white noise signal. A random sequence signal is produced by deciding whether the second white noise signal is a 1 or 0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.