FEEDBACK SYSTEM FOR IMAGER EXPOSURE RATE CONTROL

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United States of America Patent

APP PUB NO 20170214834A1
SERIAL NO

15008335

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Abstract

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Systems and methods for extracting information from a scanned item having a plurality of regularly spaced row marks along at least part of a length of the scanned item are disclosed herein. The system can include a line scan camera that can generate a line of pixels of a portion of the scanned item in an imaging area; a feed device coupled to the line scan camera; and a timing circuit. The feed device can move at least a portion of the scanned item through the imaging area, and the timing circuit can provide a plurality of capture signals to the line scan camera. The timing circuit can vary a time interval between capture signals based on a number of pixels between adjacent row marks along at least a portion of the length of the scanned item.

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Patent Owner(s)

Patent OwnerAddress
PEARSON EDUCATION INC5601 GREEN VALLEY DRIVE BLOOMINGTON MN 55437

International Classification(s)

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  • 2016 Application Filing Year
  • H04N Class
  • 18761 Applications Filed
  • 14708 Patents Issued To-Date
  • 78.40 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20162017201820192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
DOWNING, Michael S Marion, US 2 2

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  • 1 Citation Count
  • H04N Class
  • 18.14 % this patent is cited more than
  • 8 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1278443673927813173402313772001 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +02505007501000125015001750200022502500275030003250350037504000425045004750

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