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Document reading apparatus having a function of determining effective document region based on a detected data

  • US 5,377,019 A
  • Filed: 12/01/1992
  • Issued: 12/27/1994
  • Est. Priority Date: 12/02/1991
  • Status: Expired due to Term
First Claim
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1. A document reading apparatus comprising:

  • means for imaging a document placed on a document holder from above;

    detecting means for detecting a position of a hand or a finger other than a document placed on the document holder based on an output from the imaging means; and

    processing means for processing the output from the imaging means based on an output from the detecting means.

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