Neural networks
US5428466A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1992 |
| Grant date | Jun 27, 1995 |
| Priority date | — |
| Expiry date | Jun 11, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/544
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A neural network has inputs formed by square array of optical modulators M.sub.ij and outputs by optical detectors D.sub.ij coupled to threshold comparators. A holographic plate includes a spatial modulator whose elements are controlled by a controller to form an array of optical beams from a coherent optical source. Each optical beam optically interconnects a modulator M.sub.ij with a respective detector D.sub.ij. The weight values of the neural network are provided by the intensities of the optical beams. This obviates the need for an optical weighting mask between an array of light emitting diodes and a detector array allowing a higher density of lower power consumption components and reprogrammability of the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.