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Expired Canadian patentCanada

Pulse width discriminator

CA 1105098 A · Owner: Honeywell Inc. · Inventors: Foreman, Donald S.

CIPO record

Overview

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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 gated pulse generator produces an output pulse for every period in which an input signal is continuously in a particular state for longer than a minimum gating interval. If the input signal changes state within the minimum gating interval, no output pulse is produced. The pulse generator circuit includes a first, second and third switch and a capacitor. The first switch produces an output pulse as an output signal from the pulse generator when a signal at its input terminal exceeds a threshold level. The capacitor is connected to the input terminal of the first switch. The second switch discharges the capacitor when its input signal is in a first input state and allows the capacitor to …

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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 July 14, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 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.
FiledDecember 24, 1976
GrantedJuly 14, 1981
Term endedJuly 14, 1998
Patent numberCA 1105098 A
Classification (IPC)H03K5/00 +2 more

Timeline

Timeline From CIPO dates

19771980198319861989199219951998Application filedDec 24, 1976Patent grantedJuly 14, 1981Term endedJuly 14, 1998

Sources & verification

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