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Expired Canadian patentCanada

Tape editing system

CA 1069614 A · Owner: Sony Corporation · Inventors: Shigeta, Yasuo

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

In a tape editing system having a first or master VTR operable in a playback mode for reproducing video signals recorded on a first tape, and a second or slave VTR selectively operable in a playback mode for reproducing video signals previously recorded on a second tape or in a record mode for replacing a portion of such previously recorded signals with a portion of the video signals being simultaneously reproduced from the first tape; an editing control apparatus or unit is provided for precisely selecting the portion of the video signals on the first tape to be recorded on the second tape and the portion of the video signals on the second tape to be replaced by the selected video signals …

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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 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJanuary 8, 1980
Term endedJanuary 8, 1997
Patent numberCA 1069614 A
Classification (IPC)H04N5/78 +1 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJan 8, 1980Term endedJan 8, 1997

Sources & verification

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