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Expired Canadian patentCanada

Method and system for transmitting variable rate speech signal

CA 1331221 C · Owner: Suzuki, Toshiro · Inventors: Suzuki, Toshiro; Kondo, Kazuhiro

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Abstract From the Canadian patent

A speech signal transmission system for transmitting coded speech signals with variable bit rate is disclosed, which comprises a coder for analyzing digital speech signals inputted in a one-frame period and transforming them into coded data comprising a plurality of parameters indicating characteristics of the inputted speech signals, a data arranging circuit for arranging the coded data outputted by the coder in the order of the priority in the decoding of the speech signals and outputting them, and a bit stealer allowing a series of coded data outputted successively by the data arranging circuit to pass through only in a period of time determined by the transmission bit rate. The bit …

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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 August 2, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 2, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 15, 1988
GrantedAugust 2, 1994
Term endedAugust 2, 2011
Patent numberCA 1331221 C
Classification (IPC)G10L19/06

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedFeb 15, 1988Patent grantedAug 2, 1994Term endedAug 2, 2011

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