Method and apparatus for reducing system overhead in a motion detector for a touch screen device in a multi-tasking computer system
CA 2076517 A1 · Owner: Zetts, John M. · Inventors: Zetts, John M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for efficiently distinguishing between different types of input signals simulated by a pointing device coupled to a multi-tasking computer system. The pointing device may be a stylus, finger or other device that moves across the surface of a touch screen or the like to generate positional information. Depending on the response of a delay timer, the motion of the pointing device is recognized by software application programs as input information either from a mouse or from a gesture or a handwriting input mode. If motion cessation across the screen is detected with a predetermined time-delay period, the system accepts the input information in a mouse-emulating mode. If …
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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, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 2014.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.