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Expired Canadian patentCanada

Counter circuit for counting high frequency pulses

CA 1193333 A · Owner: Electronique Marcel Dassault · Inventors: Geesen, Michel

CIPO record

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Abstract From the Canadian patent

Counter circuit for counting high frequency pulses. The counter circuit is adapted to counting high frequency pulses and to being read while counting said pulses. It comprises a plurality of pulse counting stages of increasing numerical significance, and read means for reading the states of said stages. Said plurality of pulse counting stages comprises lower significance stages (101 to 104) connected as a synchronous counter (10) and higher significance stages (121 to 12n) connected as a ripple counter (12). The synchronous counter is so connected that it counts the high frequency pulses (H) directly, and that any change of state required in any of its stages on counting a pulse occurs …

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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 September 10, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 10, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 20, 1981
GrantedSeptember 10, 1985
Term endedSeptember 10, 2002
Patent numberCA 1193333 A
Classification (IPC)H03K23/00 +2 more

Timeline

Timeline From CIPO dates

1982198519881991199419972000Application filedOct 20, 1981Patent grantedSep 10, 1985Term endedSep 10, 2002

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