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Expired Canadian patentCanada

Image sensor

CA 2244276 C · Owner: Kurosawa, Toshiro · Inventors: Noguchi, Syun; Kurosawa, Toshiro

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A Time Delay Integration technique is applied to an image sensor of this invention. A sensor part is constructed in such a way that diagonally-arranged photo-sensors are arranged periodically lengthwise and widthwise. The signal charge read from the photo-sensors of each line is transferred vertically to horizontal CCD shift registers. Each horizontal CCD shift register is provided on each line of the diagonallyarranged , photo-sensors, and the horizontal CCD shift register outputs the signal charge to an A/D converter, which converts the signal charge into a digital signal. Thus, one A/D converter processes only a small amount of data, and the object can be scanned at high speed.

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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 10, 1998 and granted May 8, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 10, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2020.
  • 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 10, 1998
GrantedMay 8, 2001
Term endedSeptember 10, 2018
Patent numberCA 2244276 C
Classification (IPC)H04N5/34 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedSep 10, 1998Patent grantedMay 8, 2001Term endedSep 10, 2018

Sources & verification

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