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Expired Canadian patentCanada

Sampling clock pulse generator

CA 1252156 A · Owner: Kabushiki Kaisha Toshiba · Inventors: Tanabe, Toshiyuki; Noguchi, Minoru

CIPO record

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

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Abstract From the Canadian patent

A sampling clock pulse generator for sampling a data signal which is transmitted subsequently to a clock-run-in signal, the clock pulse generator comprising detection section being responsive to the clock-run-in signal and a plurality of clock signals for detecting a specific phase portion of the clock-run-in signal, the detection section generating a first output when the phase portion is detected, counter section for counting the first output for a given period the, counter section generating a second output corresponding to the content thereof, and selector section coupled to the counter section for selecting one of the clock signals as the sampling clock pulse according to the second …

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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 April 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 4, 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.
FiledMay 22, 1985
GrantedApril 4, 1989
Term endedApril 4, 2006
Patent numberCA 1252156 A
Classification (IPC)H04N7/08 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedMay 22, 1985Patent grantedApril 4, 1989Term endedApril 4, 2006

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