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Method of representing binary data

  • US 5,541,396 A
  • Filed: 07/22/1994
  • Issued: 07/30/1996
  • Est. Priority Date: 07/19/1991
  • Status: Expired due to Term
First Claim
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1. A method for graphically representing binary data in a condensed, high-density, machine-readable form, comprising the steps offorming a pattern of information-carrying graphic elements defining a geometric reference system, the reference system including a substantially continuous frame having a selected width and a plurality of synchronization lines within the frame defining boundaries of at least one data field;

  • placing a plurality of machine-readable marks within the width of the frame identifying the pattern as a data-field reference system and providing information about data to be included in the system, andsubstantially filling the at least one data field with a plurality of binary data-transmission elements each characterized by the presence or absence of a machine-readable mark at each of a plurality of contiguous binary data element locations, each binary data element location having a known geometric relationship to the reference system so that coordinates of each of the plurality of individual binary data elements can be accurately determined.

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