Identifying a person by computer graphics
CA 2451647 A1 · Owner: Bai, Li Kun · Inventors: Bai, Li Kun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system for identifying a computer system's user allows for having a very difficult to guess and easily remembered authentication drawing. The method uses a computer-generated drawing as the authentication code making the code much easy to be memorized and hard to guess. The system comprises a computer terminal with graphic user interface to assist a user to regenerate his/her authentication drawing and a controller with a drawing database coded by user IDs and passwords. The controller compares the stored drawing associated with the use's user ID and password in its database with the one redrawn by the user on the terminal screen to see if there is a match to identify the user. …
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 December 1, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 1, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2025.
- 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.