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Canadian application, no grantCanada

Method and circuit arrangement for limiting an output signal

CA 2070700 A1 · Owner: Siemens Aktiengesellschaft · Inventors: Martin, Raimund; Wolf, Herbert

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

In a method and circuit arrangement for limiting an output signal an aggregate, signal is formed from a base signal and from a triangular-shaped sampling signal and a, pulse-duration-modulated control signal is generated from the aggregate signal. Upon the occurrence of an upward transgression of a threshold potential additional pulses are, generated from the aggregate signal and are inserted into the pulse-duration-modulated control signal. The control signal is used to generate a demodulated useful output signal and the additional pulses in the control signal effect a limitation of the amplitude of the output signal only after amplification has already occurred. The amplified output …

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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

  • Filed June 8, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 8, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 8, 1992
GrantedNo grant recorded
Term endedJune 8, 2012
Patent numberCA 2070700 A1
Classification (IPC)H04R25/00 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJune 8, 1992Term endedJune 8, 2012

Sources & verification

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