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Canadian application, no grantCanada

Superresolution in periodic data storage media

CA 2431981 A1 · Owner: Siwick, Bradley · Inventors: Kraemer, Darren; Siwick, Bradley; Miller, R. J. Dwayne

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Abstract From the Canadian patent

This invention provides a method of acquisition of binary information that has been stored physically in a periodic storage medium. The method referred to , as matrix-method deconvolution (MMD) is useful for use with optical storage media using an optical addressing system that reads and writes binary information in a periodic array of nano-particles. With this MMD method the , density of existing memory systems can be boosted to between 10 and 100 Terabytes of data per cubic centimeter. This matrix-method deconvolution method compensates for the effects of the optical addressing system's point spread function. Prior knowledge of a system's point spread function and inter …

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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 December 14, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 14, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 2023.
  • 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 14, 2001
GrantedNo grant recorded
Term endedDecember 14, 2021
Patent numberCA 2431981 A1
Classification (IPC)G11B7/00 +2 more

Timeline

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2002200420062008201020122014201620182020Application filedDec 14, 2001Term endedDec 14, 2021

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