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Expired Canadian patentCanada

Fast analog sampler with great memory depth

CA 2445372 C · Owner: Breton, Dominique · Inventors: Breton, Dominique; Delagnes, Eric

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

The invention concerns an analog sampler (1) for recording analog data carried by a bus (5) comprising an array (10) of recording cells (2) arranged in rows (13) and columns (12). Each cell (2) has an analog input (3) coupled with the bus (5) via a switch (21a) having a toggle digital input (23). Said device is characterised in that it comprises a delay line (9) associated with each column (12) coupled with the shift register. Successive outputs (11) of the line (9) are coupled with each of the digital inputs (11-1) of the cells (2) of the column (12) such that at any time not more than one single recording switch is switched. Thus the signal is not perturbed by the noise.

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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 April 24, 2002 and granted March 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 24, 2002
GrantedMarch 5, 2013
Term endedApril 24, 2022
Patent numberCA 2445372 C
Classification (IPC)G11C27/02 +1 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedApril 24, 2002Patent grantedMarch 5, 2013Term endedApril 24, 2022

Sources & verification

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