Patent Yard Sign in
Expired Canadian patentCanada

Display unit

CA 1212453 A · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Fukushima, Nobuo; Iwata, Shuji

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A display unit capable of simultaneously displaying motion pictures, still pictures and character data received in a multiplexed form on a single input terminal. A decoder distributes the motion picture data directly to a motion picture data memory without modification, while a processing device receives the still picture and character data from the decoder and processes it before applying it to a still picture and character data memory. The outputs of the two memories are ORed together, then applied to drive a cathode-ray tube

Read the whole patent

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 October 7, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 2003.
  • 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 27, 1985
GrantedOctober 7, 1986
Term endedOctober 7, 2003
Patent numberCA 1212453 A
Classification (IPC)H04N7/08 +2 more

Timeline

Timeline From CIPO dates

198619881990199219941996199820002002Application filedFeb 27, 1985Patent grantedOct 7, 1986Term endedOct 7, 2003

Sources & verification

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