Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Paul Lapstun0
Kia Silverbrook0
Date of Patent
May 10, 2011
0Patent Application Number
127736730
Date Filed
May 4, 2010
0Patent Primary Examiner
Patent abstract
A system for generating an interface surface is provided having a code generator for generating machine-readable coded data and a printer for printing the generated coded data onto a surface to generate an interface surface. The coded data is generated to be arranged in accordance with a layout having n-fold rotational symmetry about a center of rotation, where n is at least two, the layout including n identical sub-layouts rotated 1/n revolutions apart about the center of rotation. Each sub-layout defines the position of data elements and includes rotation-indicating data that distinguishes that sub-layout from at least one other sub-layout.
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