Method and apparatus for controlling force feedback interface systems utilizing a host computer
CA 2233136 C · Owner: Immersion Corporation · Inventors: Braun, Adam C.; Rosenberg, Louis B.; Levin, Mike D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (14) for controlling and providing force feedback using an interface device manipulated by a user and connected to a host computer system (12). A microprocessor (26) is provided local to the interface device and reads sensor data from sensors that describes the positioning of a user object moved by the user, such as a joystick. The microprocessor controls actuators (30) to provide forces on the user object. The host computer sends high level host commands to the local microprocessor and the microprocessor independently implements a local reflex process based on the high level command to provide force values to actuators using sensor data and other parameters. A host …
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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 September 25, 1996 and granted January 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2018.
- 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
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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.