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Expired Canadian patentCanada

Disc player with program selection control

CA 1205192 A · Owner: Sony Corporation · Inventors: Inazawa, Yoshizumi

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

A disc player for reproducing program information recorded on a disc in a plurality of partitions together with address data for each partition includes a program selection control for selecting one of the partitions, representing a particular program. A program selecting key causes a pick-up to be positioned at the address identifying the start of a selected partition the same as or reversed from a present partition. Multiple manipulations of the program selecting key cause the selection of a partition multiply reversed from the present partition. A second program selecting key causes the selection of a partition advanced from the present partition.

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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 May 27, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 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 25, 1983
GrantedMay 27, 1986
Term endedMay 27, 2003
Patent numberCA 1205192 A
Classification (IPC)G11B25/04 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedFeb 25, 1983Patent grantedMay 27, 1986Term endedMay 27, 2003

Sources & verification

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