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Method and system for online purchasing using coded marks

  • US 7,464,880 B2
  • Filed: 11/12/2002
  • Issued: 12/16/2008
  • Est. Priority Date: 05/25/1999
  • Status: Expired due to Fees
First Claim
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1. A method of enabling online purchasing via a printed form, said method comprising the steps of:

  • providing the printed form containing information relating to a purchasing transaction and coded data printed as a collection of tags, each tag identifying an identity of the form and the position of the tag on the form form, the coded data comprising a plurality of undifferentiated marks positioned relative to a set of predetermined nominal mark positions,operatively positioning an optically imaging pen relative to the form, said pen having a nib;

    sensing a tag on the form;

    computing the position of the nib from an observed perspective distortion on the sensed tag and a known spatial relationship between the pen'"'"'s physical axis and the pen'"'"'s optical axis, said axes being different from each other;

    transmitting, to a computer system, indicating data from the pen, said indicating data being indicative of the identity of the form and a position of the nib relative to the form;

    thereby enabling the computer system to;

    identify at least one parameter relating to the purchasing transaction using the indicating data; and

    initiate the online purchasing using the at least one parameter identified.

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