Push-pull output neuron circuit
US6809558B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2003 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | May 29, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N3/063
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A neuron circuit generates a sigmoid transfer function and its derivative. The neuron circuit comprises an I-V converter that converts a current input signal into a voltage signal, a first output circuit having a first differential amplifier with a first current mirror as an active load, and a second output circuit having a second differential amplifier with a second current mirror as an active load, both the first and second output circuit being coupled to the voltage signal. While an output of one of the first and second output circuits is a sigmoid function of the current input, a difference between the two outputs of the two output circuits is a derivative of the sigmoid function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.