Analog W.T.A. circuit reject signal
US6362662B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2001 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | May 4, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/24
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A winner-take-all (WTA) circuit apparatus for comparing two current inputs from a WTA circuit to a threshold current to create a reject signal, to assist in the decision criteria of a winner-take-all network. The circuit compares the two input currents from the WTA circuit by using NMOS transistors which perform electrical mathematical functions by manipulating the currents. The end result is that the difference of the two currents is compared with a reference current and a voltage level is outputted. The reference current is adjustable, and the invention also provides a WTA circuit with weighted inputs, and the ability to select between a 1-WTA, and a 2-WTA configuration. The invention therefore solves the problems of prior art by being capable of properly selecting current levels or rejecting current levels which are too close in value, with a voltage reject signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.