Voltage sensing type of matrix multiplication method for neuromorphic computing system
US10635398B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Apr 17, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2213/79
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device for generating sum-of-products data includes an array of variable resistance cells, variable resistance cells in the array each including a transistor and a programmable resistor connected in parallel, the array including n columns of cells including strings of series-connected cells and m rows of cells. Control and bias circuitry are coupled to the array, including logic for programming the programmable resistors in the array with resistances corresponding to values of a weight factor Wmn for the corresponding cell. Alternatively, the resistances can be programmed during manufacture. Input drivers are coupled to corresponding ones of the m rows of cells, the input drivers selectively applying inputs Xm to rows m. Column drivers are configured to apply currents In to corresponding ones of the n columns of cells. Voltage sensing circuits operatively coupled to the columns of cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.