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Expired Canadian patentCanada

Voice-operated service

CA 1338613 C · Owner: Cisco Ravenscourt L.L.C. · Inventors: Cameron, Ian Ross

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

In a telephone banking service, initial log-on (before service has identified the user) must use speaker-independent recognition (ie the speech recognizer 2 operates in accordance with a word template drawn from the population at large). Once the speaker is identified the recognizer 2 employs a template specific to each individual speaker; this is much more accurate. The invention assists the log-on procedure by assigning each speaker a password consisting of a string of for example, 5 digits which uniquely identify him measuring the, clarity with which the speaker recites each digit compared to the standard template, and selecting his password from only those digits which he can clearly …

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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

  • Granted September 24, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 27, 1989
GrantedSeptember 24, 1996
Term endedSeptember 24, 2013
Patent numberCA 1338613 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedApril 27, 1989Patent grantedSep 24, 1996Term endedSep 24, 2013

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.