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Networked computer system with wireless pen interface

  • US 7,864,166 B2
  • Filed: 02/25/2008
  • Issued: 01/04/2011
  • Est. Priority Date: 05/25/1999
  • Status: Expired due to Fees
First Claim
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1. A networked computer system comprising:

  • a printer configured to print visible graphic data and invisible coded data tags on print media and to receive transmitted sensed data associated with the data tags;

    a pen-type device including an image sensor configured to sense the data tags on the print media and wirelessly transmit the sensed data to the printer; and

    one or more servers interfaced to the printer via a network, and configured to receive the sensed data from the printer and process the sensed data,wherein each data tag includes;

    a detection ring for allowing the image sensor to detect the data tag; and

    an orientation axis located within the detection ring and for allowing the image sensor to determine a planar orientation of the tag.

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