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Canadian application, no grantCanada

Adaptive drive waveform for reducing crosstalk effects in electro-optical addressing structures

CA 2106843 A1 · Owner: Ilcisin, Kevin J. · Inventors: Prince, Dennis W.; Ilcisin, Kevin J.

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

Abstract of the Disclosure, Crosstalk in reduced in any type of active matrix electro-optical display system (10) by applying a compensating signal, the value of which is dependent upon multiple data drive signals. In a preferred embodiment a, single compensating signal, equal to the inverse weighted average of all of the data drive signals applied during a row address period, can be applied to all data electrodes (20) after the data drive signals are stored in display reduces side-to-side crosstalk and front-to-back crosstalk to levels previously achievable for only type of crosstalk at a time.

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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 September 23, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 23, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 23, 1993
GrantedNo grant recorded
Term endedSeptember 23, 2013
Patent numberCA 2106843 A1
Classification (IPC)G09G3/20 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedSep 23, 1993Term endedSep 23, 2013

Sources & verification

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