Current-mode based analog circuits for synthetic neural systems
US5206541A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1991 |
| Grant date | Apr 27, 1993 |
| Priority date | — |
| Expiry date | Apr 30, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N3/065
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A two transistor current-controlled current conveyor (C4) circuit is provided which exploits the translinear properties of the MOS transistor in subthreshold and uses unidirectional current signals. As a result, the circuits of the invention achieve high functionality and integration density with very low power dissipation. Two C4 circuits connected to and communicating through a bidirectional junction circuit of the invention permit the transmission of independent, bidirectional signals. These circuits are useful for implementing synthetic neural systems such as associative memories and silicon retinas, such as winner-takes-all and pyramidal neuron circuits and the outer-plexiform layer of a retina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.