System for generating interface surface
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United States of America Patent
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May 10, 2011
Grant Date -
Aug 26, 2010
app pub date -
May 4, 2010
filing date -
Sep 17, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
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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