Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Simon Robert Walmsley0
Kia Silverbrook0
Paul Lapstun0
Date of Patent
December 21, 2010
0Patent Application Number
121383860
Date Filed
June 12, 2008
0Patent Primary Examiner
Patent abstract
A data structure is printed on a photograph using infra-red ink. The data structure includes a two dimensional array of data blocks. Each adjacent pair of data blocks is separated by a gap and each of the data blocks has a data region holding encoded data. Each data region is confined by clock-marks and borders to facilitate location of the data region and recovery of data from within the data region.
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