Composite system course control method and apparatus
CA 2109363 C · Owner: Canon Kabushiki Kaisha · Inventors: Itoh, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High-speed, high-precision course control can be performed without increasing the loop gain of each control system. A target value for moving a controlled object as a reality axis by a desired amount is produced. A virtual target value for moving a virtual controlled object as a virtual axis based on the reality axis is also produced. A control input and a virtual control input which optimize a predetermined first evaluation function are calculated upon reception of the produced virtual target value the produced target value, a virtual state amount from the virtual controlled object a state amount from the controlled object a first disturbance signal with respect to the virtual controlled …
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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 27, 1993 and granted February 25, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 27, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.