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Expired Canadian patentCanada

Method for an automated visual range measurement by means of a lidar system

CA 2219010 C · Owner: Streicher, Jurgen · Inventors: Streicher, Jurgen

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Abstract From the Canadian patent

For automated visual range measurement by a LIDAR system, a distance measuring range is first determined through repeated evaluation of a voltage level U(R) which indicates the intensity of a threshold value. After random initialization of a start value, the start value is then replaced each time with a new mean visual range resulting in, iterative improvements, and the mean visual range in the determined range is then displayed automatically as soon as the visual range lies within the measuring range of the LIDAR system. Using the Klett method, the accuracy can be determined with the aid of a breaking-off criterion in the form of a threshold value with respect to a deviation percentage …

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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 October 17, 1997 and granted January 30, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 17, 1997
GrantedJanuary 30, 2001
Term endedOctober 17, 2017
Patent numberCA 2219010 C
Classification (IPC)G01S17/08 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedOct 17, 1997Patent grantedJan 30, 2001Term endedOct 17, 2017

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