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Expired Canadian patentCanada

Robotic television-camera dolly system

CA 2023619 C · Owner: Gordon, Gary B. · Inventors: Gordon, Gary B.; Gonnelli, Robert R.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A robotic camera dolly system includes a motorized dolly which rolls freely across a studio floor under computer control, the dolly carrying a camera. Targets are provided on the floor at various locations from which camera shots are to be taken. The dolly is moved from one target to the vicinity of another target according to a learned sequence of movements controlled by a remote dolly computer. The learned sequence of movements is taught with the aid of a joystick, and the motions are replayed based on dead reckoning. In order to correct translational and angular errors in the position of the dolly at the destination target, optosensors are provided on the dolly for use in detecting and …

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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 August 20, 1990 and granted December 28, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 20, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 20, 1990
GrantedDecember 28, 1993
Term endedAugust 20, 2010
Patent numberCA 2023619 C
Classification (IPC)G05D3/12 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedAug 20, 1990Patent grantedDec 28, 1993Term endedAug 20, 2010

Sources & verification

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