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System for facilitating searches for data stored on a network

  • US 7,590,622 B2
  • Filed: 11/05/2004
  • Issued: 09/15/2009
  • Est. Priority Date: 06/30/1999
  • Status: Expired due to Fees
First Claim
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1. A system for facilitating searches for data stored on a network, the system comprisinga computer system forming a node on the network and having a database of electronic documents, each of which are associated with at least one resource description;

  • a printer connected to the network, said printer being configured to;

    receive first print instructions from the computer system;

    print a first document representing a first electronic document, said first printed document containing graphical information relating to the search to be carried out and coded data printed as a collection of tags, each tag identifying an identity of the first printed document and a location of the tag on the first printed document, said coded data being printed with said graphical information by said printer;

    receive data from an optically imaging pen reading the first coded data, said data being indicative of the identity of the printed document and a position of a nib of the pen, the position of the nib being calculated using a first position determined from decoding an imaged tag, a perspective distortion observed on the imaged tag and a known spatial relationship between an optical axis and the nib, wherein the first position is different from the nib position;

    receive second print instructions from the computer system in response to the received data; and

    print a second document containing information identified by the computer system.

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