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Expired Canadian patentCanada

Teletext receiver

CA 1213360 A · Owner: Etat Francais, Represente Par Le Ministre Des P.T.T. (Centre National D'Etudes Des Telecommunications) (L') · Inventors: Sechet, Claude; Motsch, Roger

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The present invention is concerned with giving the teletext receivers means making it possible to simplify the tests, particularly by shortening the processing time and by minimizing the number of logic operations required. In the receiver is used apart from, the known members making it possible to acquire a desired page, means making it possible to acquire beforehand complementary articles making it possible for the user to restore a selected page. These means essentially consists of a circuit, called the acquisition decision circuit or CDA, which cooperates with the conventional receiver means, namely the informatics means able to manage the receiver members and the receiver memory, which …

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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 October 28, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 28, 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 21, 1984
GrantedOctober 28, 1986
Term endedOctober 28, 2003
Patent numberCA 1213360 A
Classification (IPC)H04N7/08 +1 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedFeb 21, 1984Patent grantedOct 28, 1986Term endedOct 28, 2003

Sources & verification

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