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Expired Canadian patentCanada

Dropout compensator with proportional duration dropout detector

CA 1107854 A · Owner: Rca Corporation · Inventors: Thomas, Robert G.; Sadashige, Koichi

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 signal defect compensator is provided which develops a replacement video signal for use during a signal dropout. The compensator includes a dropout pulse detector for the generation of a stretched dropout control pulse interval proportional to the duration of the signal dropout.

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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 August 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 24, 1978
GrantedAugust 25, 1981
Term endedAugust 25, 1998
Patent numberCA 1107854 A
Classification (IPC)H04N5/76 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedNov 24, 1978Patent grantedAug 25, 1981Term endedAug 25, 1998

Sources & verification

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