Banknote reader system
CA 2257590 A1 · Owner: Brytech Inc. · Inventors: Davey, John C.; Bryenton, Earl L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable banknote reader for use by blind individuals is adapted to receive a, banknote. The reader audibly or by other means announces the denomination of the note. The, reader requires currency which is coded with special code markings. In order to read the note, the reader transmits infrared (IR) light through the note from one side and senses the intensity, of light passing through the note on the other side. The reader converts intensity readings into, a series of signals representative of the presence or absence of codes on the note, compares, the series of signals against known codes to determine the denomination of the note and then, activates a voice synthesizer or other …
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 29, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 29, 2020.
- 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.