Patent Yard Sign in
Canadian application, no grantCanada

Fuzzy logic controller

CA 2136281 A1 · Owner: Csem Centre Suisse D'Electronique Et De Microtechnique Sa - Recherche Et Developpement · Inventors: Landolt, Olivier

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

This fuzzy logic controller of the analog type enables the implementing of a set of fuzzy rules for which the output values are polynomial functions of the input variables. The controller functions by determining initially the weights of the different rules then, estimating a global value for each of the coefficients of the polynomials delivering the output values under the different rules. Finally the controller deliveres a global output value determined by evaluating the value of a polynomial for which the coefficients are the global values evaluated beforehand.

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed November 21, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 21, 1994
GrantedNo grant recorded
Term endedNovember 21, 2014
Patent numberCA 2136281 A1
Classification (IPC)G05B24/02 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedNov 21, 1994Term endedNov 21, 2014

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.