Mouse-like input/output device with display screen and method for its use
CA 2276322 C · Owner: Rozenblum, Dmitri · Inventors: Rozenblum, Dmitri; Gouzman, Roman; Karasin, Igor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A computer mouse for blind users and a method for its use. The mouse has a display area on its upper surface in which a portion of the computer's screen display is, reproduced in tactile form for example by raising and lowering members of an array of, pins. A monochrome display is encoded by pin height. A color display may be encoded in various ways. Preferably, lightness is encoded as the range of vertical, motion of the pins and hue is encoded as pin motion frequency. A blind user scans the, screen display by moving the mouse around on a mouse pad and feeling the relative, heights and frequencies of the pins.
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 25, 1997 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 25, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 25, 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.