Current controlled sigmoid neural circuit
US6664818B1 · kind B1 · utility
1Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2002 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Nov 13, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N3/065
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The current controlled sigmoid neural circuit is used for approximating sigmoid function and is simple constructed, current controlled and gain adjustable circuit with highly precision. The present invention comprises a voltage generator for converting a current input into a voltage, a pair of differential amplifier for generating sigmoid-like function and few pairs of current mirrors for providing reference currents. By using adjustable reference current and gain factor, the circuit has a large range and high noise immunity and can approximate sigmoid function with insignificant error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.