Neural processor with holographic optical paths and nonlinear operating means
US5004309A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1989 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Jun 13, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N3/067
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical apparatus for simulating a highly interconnected neural network is disclosed as including a spatial light modulator (SLM), an inputting device, a laser, a detecting device, and a page-oriented hologaphic component. The inputting device applies input signals to the SLM. The holographic component optically interconnects N.sup.2 pixels defined on the spatial light modulator to N.sup.2 pixels defined on a detecting surface of the detecting device. The interconnections are made by N.sup.2 patterns of up to N.sup.2 interconnection weight encoded beams projected by N.sup.2 planar, or essentially two-dimensional, holograms arranged in a spatially localized array within the holographic component. The SLM modulates the encoded beams and directs them onto the detecting surface wherein a parameter of the beams is evaluated at each pixel thereof. The evaluated parameter is transformed according to a nonlinear threshold function to provide transformed signals which can be fed back to the SLM for further iterations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.