G - Physics – 07 – D
Patent
G - Physics
07
D
G07D 13/00 (2006.01) G07D 7/00 (2006.01) G07D 7/12 (2006.01) G07D 11/00 (2006.01) G09B 21/00 (2006.01)
Patent
CA 2257590
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 device to output the denomination. The portable reader is more compact, less expensive and more reliable than current readers, is easy to use by blind people, requires little maintenance and has an expected life of more than 10 years.
Bryenton Earl L.
Davey John C.
Brytech Inc.
Gowling Lafleur Henderson Llp
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