Tactile graphic-based interactive overlay assembly and computer system for the visually impaired
CA 2460836 A1 · Owner: Landau, Steven · Inventors: Landau, Steven; Gourgey, Karen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A computer-based system permitting a visually impaired user to interact with tactile graphic-based interactive software applications is provided. The system includes a host computer having a data processor and a drive for running the interactive software applications and a pressure sensitive work pad. The work pad has X and Y pressure sensitive members disposed in a grid array for providing unique location output signals corresponding to each different location on the grid array. The work pad is operatively connected to the host computer and an overlay comprising a sheet is placed over an upper surface of the work pad. The overlay having a work space which bears tactile indicia …
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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 17, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 17, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 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.