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Expired Canadian patentCanada

Multiprocessor type time varying image encoding system and image processor

CA 2016348 C · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Asano, Kenichi; Suzuki, Ryuta

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

A multiprocessor type time varying image encoding system having a plurality of digital signal processor (DSP) modules (DMM's) connected in parallel, each DMM having a DSP, a local memory and an interrupt control unit a plural-, ity of common memories for storing data which is being processed, parameters, etc. an input frame memory which enables reading and writing operations to be executed asynchronously, a combination of a task control unit and a task table for distributing tasks to the DMM's a plurality of, independent common buses and a combination of a bus control, unit and a bus control table for bus sharing control.

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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

  • Filed May 9, 1990 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 9, 1990
GrantedFebruary 5, 2002
Term endedMay 9, 2010
Patent numberCA 2016348 C
Classification (IPC)G06F13/16 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMay 9, 1990Patent grantedFeb 5, 2002Term endedMay 9, 2010

Sources & verification

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