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Expired Canadian patentCanada

Biphase coded signal including synchronizing pattern transmission method

CA 1249357 A · Owner: Telefunken Fernseh Und Rundfunk G.M.B.H. · Inventors: Scholz, Werner

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

For the transmission of synchronizing information for a PCM signal transmitted in biphase code a synchronizing, pattern is provided which is composed of a biphase signal that has been shifted by one-half bit period.

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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 24, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 24, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 29, 1984
GrantedJanuary 24, 1989
Term endedJanuary 24, 2006
Patent numberCA 1249357 A
Classification (IPC)H04L7/00 +2 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedAug 29, 1984Patent grantedJan 24, 1989Term endedJan 24, 2006

Sources & verification

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