Communication device and method for deaf and mute persons
CA 2214243 C · Owner: Butnaru, Hanan · Inventors: Butnaru, Hanan; Krueger, Wesley O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The communication system for deaf, hearing impaired or mute persons, comprises a processor control system which makes use of a microphone and speech recognizer to receive and process audio data. The processor also has the ability to process other audio data (e.g. non-speech) to determine whether or not a dangerous situation exists within the environment surrounding the user. The system further comprises a key pad and/or stylus and tablet information input system to accommodate communication from the user to the persons in the surrounding environment and a display capability to transmit the information so acquired by way of a projection apparatus, or other means in the form of characters and …
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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 29, 1997 and granted February 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 29, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 29, 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.