Computer input device and controller therefor
CA 2309689 A1 · Owner: Hennessy, Michael T. · Inventors: Hennessy, Michael T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A computer input device, such as a mouse and a method of operating the same. , Initially the location of the cursor (15) at various times on the screen (11) is detected. From these various positions a path of travel and a rate of travel of the cursor (15) are computed. Display objects such as buttons (16, 17) which exist along or near the path of travel are identified and designated as potential targets. The rate of change in the rate of travel is also computed. This information is used to decide if a user is slowing down in approach of a specific screen display object. If certain deceleration criteria are met, then that target which the user is approaching is designated as the …
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
- Filed November 12, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 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.
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.