Pen-shaped sensing device for sensing surface regions
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United States of America Patent
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Oct 4, 2011
Grant Date -
Jun 2, 2011
app pub date -
Feb 7, 2011
filing date -
May 25, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pen-shaped sensing device is provided for sensing coded data disposed which is substantially invisible to the average unaided human eye on a surface. The device has a region identity sensor configured to sense, when the sensing device is positioned or moved relative to a region of the surface, and using at least some of the coded data, region identity data indicative of an identity of the region, and a transmitter configured to transmit the sensed region identity data to the computer system to a computer system.
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