Sigmoid function in hardware and a reconfigurable data processor including same
US11327923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2019 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Dec 9, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/17
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A functional unit for a data processor comprises an input register to store a variable X; a first circuit, having an input connected to the input register and an output, to generate a value eX on its output; a second circuit, having an input connected to the input register and an output, to generate an output which is a value (tan h(X/2)+1)/2 on its output; a comparator, having an input connected to the input register and an output, to generate a line on its output based on a comparison between X and a constant; and a selector to select between inputs connected to the outputs of the first circuit and the second circuit, in response to the output of the comparator, and provide an output representing a value sigmoid(X).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.