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Expired Canadian patentCanada

Binary waveform shaping apparatus

CA 2279680 C · Owner: Horvat, Dion · Inventors: Horvat, Dion; Jelea, Florin

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

The present disclosure discloses an apparatus for generating a shaped waveform derived from a binary input signal. The apparatus receives a binary input signal and a sample clock signal. The sample clock signal changes the state of an up/down counter. The binary input signal controls the counting direction of the counter. The counter addresses a lookup table containing stored, values. Also disclosed is the apparatus in which the lookup table output is converted to an analog signal by a digital-to-analog converter. The lookup table, can be programmed such that the circuit output is equivalent to a filtered version, of the binary input signal. The apparatus may optionally be enabled or …

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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 August 5, 1999 and granted November 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 5, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 5, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 5, 1999
GrantedNovember 26, 2002
Term endedAugust 5, 2019
Patent numberCA 2279680 C
Classification (IPC)H03K5/01 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedAug 5, 1999Patent grantedNov 26, 2002Term endedAug 5, 2019

Sources & verification

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