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Methods and apparatuses for controlling access to computer systems and for annotating media files

  • US 9,600,648 B2
  • Filed: 10/07/2013
  • Issued: 03/21/2017
  • Est. Priority Date: 01/23/2007
  • Status: Expired due to Fees
First Claim
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1. A method of digitizing media, comprising:

  • designating at least one first portion of an electronic representation of characters of a document as not having a known answer and using the at least one first portion designated as not having a known answer as a read part of a challenge, wherein the challenge includes a verify part for which an answer is known and the read part for which the answer is not known;

    presenting the challenge to multiple users;

    receiving an interpretation of the read part of the challenge from a plurality of the multiple users;

    comparing the received interpretations and establishing a confidence level for the interpretations;

    responsive to one of the interpretations reaching a predetermined level of confidence, establishing the interpretation as correct;

    using the interpretation established as correct to replace the first portion of the electronic representation of characters of the document; and

    designating the first portion of the electronic representation of characters of the document as having a known answer.

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