Speech processing system
CA 1294072 C · Owner: Newbridge Networks Corporation · Inventors: Carey, Michael John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a speech processing system having an encoder comprising means for receiving successive samples of PCM encoded speech signals, means for applying sequential groups of said PCM encoded speech signals as primary vector signals to an encoder code book memory for selecting code words stored in said memory most closely approximating said vector signals, means for outputting to an output line said selected code words at a first bit rate means for converting said selected code words to converted vector signals, means for comparing the primary vector signals and converted vector signals and for providing difference signals therefrom means, for quantizing the …
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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 January 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 7, 2009.
- 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.