System and method of pen-based data input into a computing device
CA 2448738 A1 · Owner: Ho, Kenneth Kee · Inventors: Leung, Paul Chung Po; Tam, Kiffin Kin Fong; Ho, Kenneth Kee
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved system and method for pen-based handwritten and keystroke data input into a computer system is disclosed. The system and method receives pen~based data entry (52) from multiple related input boxes (30 32, 34) , within a handwriting area on a digitizer pad. Thread based processing allows each input box or group of input boxes to be separately evaluated providing , for continuous character recognition. Character strokes entered into each input box or group of input boxes are saved and interpreted together (58 38) , to allow more complete recognition of naturally written characters. Improvements on keyboard layouts are also disclosed.
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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 May 31, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 31, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2024.
- 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.