Patent Yard Sign in
Expired Canadian patentCanada

Method and apparatus for real time image recognition

CA 1074014 A · Owner: Tasco S.P.A. · Inventors: Degasperi, Mario M.

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

Method for real time recognition of images by comparison with sample images. The image to be recognized is read and converted to analog signals of the luminance levels, then these discretioned signals are converted to digital signals according to a luminance level scale. A distribution function of the luminance level frequencies is determined then calculating the typical parameters of said function, which are then compared with a set of corresponding parametersof sample images determining the minimum comparison value on which a signal is generated for identifying the image when said minimum comparison value is below a predetermined threshold value.

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

  • Granted March 18, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 18, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMarch 18, 1980
Term endedMarch 18, 1997
Patent numberCA 1074014 A
Classification (IPC)G06K9/00 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedMarch 18, 1980Term endedMarch 18, 1997

Sources & verification

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