Method and apparatus for identifying documents using a handheld device

  • US 7,856,474 B2
  • Filed: 07/20/2007
  • Issued: 12/21/2010
  • Est. Priority Date: 03/27/2001
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • storing a plurality of reference documents in a memory device, including storing reference data for each reference document of the plurality of reference documents, wherein the reference data comprises data representing human-readable content from an associated reference document of the plurality of reference documents;

    receiving over a wireless connection, document data at a data processing system from a handheld device, wherein the document data corresponds to content of one of the reference documents of the plurality of reference documents, and wherein the document data comprises data captured from human-readable content in a document when scanned by the handheld device, wherein the human-readable content comprises originally published content of the document;

    extracting at least a portion of the received document data as scanning data, wherein the scanning data comprises data representing human-readable content from the document;

    retrieving from the memory device the reference data for at least one reference document of the plurality of reference documents;

    comparing the scanning data with the retrieved reference data, wherein comparing comprises a comparison of (a) the scanning data corresponding to the human-readable content of the document, and (b) the retrieved reference data for the at least one reference document of the plurality of reference documents comprising human-readable content of the at least one reference document as originally published; and

    identifying, when the step of comparing the scanning data with the retrieved reference data indicates the scanning data matches at least a portion of the retrieved reference data, one or more reference documents associated with said matched reference data as the reference documents corresponding to the document data received from the handheld device.

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