Electronic memory devices for the blind
CA 1211217 A · Owner: Pathway Communications Limited · Inventors: Woolfson, Louis A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The device basically comprises a Braille keyboard, a memory for storing text entered on the keyboard, a text editor and a speech synthesiser. Braille coded information entered by the user by means of the keyboard is stored in the memory. The stored text may be subsequently converted to sighted language coded information by a translator and played back through the speech synthesiser to enable the user to interactively edit the stored text by means of the text editor in response to the speech output. The edited text may be outputted in sighted language form to a printer or in Braille form to an embosser to obtain a hard copy, or alternatively can be supplied to a cassette unit for long-term …
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
- Granted September 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 9, 2003.
- 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.