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Method and system for retrieving display data

  • US 8,035,850 B2
  • Filed: 03/30/2010
  • Issued: 10/11/2011
  • Est. Priority Date: 12/01/1999
  • Status: Expired due to Fees
First Claim
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1. A method of retrieving display data for a handheld display device, said method comprising the steps, in a server, of:

  • receiving interaction data from the handheld display device, said interaction data being generated by the device using image data acquired by imaging an area of a printed substrate containing printed content;

    identifying a page description corresponding to the interaction data;

    retrieving display data using the identified page description, said display data corresponding to at least some of the printed content imaged by the device; and

    sending the display data to the handheld display device, thereby causing the device to display display-information based on said display data so as to enable user interaction with the display-information via an opaque touch-sensitive display screen of the device, wherein, from a user'"'"'s perspective, the opaque screen has real-time virtual transparency through the opaque screen to the printed content underlying said screen to provide a virtual window to the printed content underlying said screen.

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