Digitizer tablet using relative phase detection
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United States of America Patent
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-
May 16, 1995
Grant Date -
N/A
app pub date -
Apr 8, 1993
filing date -
Apr 8, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a digitizer and method for laying out and using the tablet of the digitizer, wherein the tablet provides unambiguous binary code outputs. The digitizer may employe a cordless transducer and signal processing circuitry providing relative phase detection for determining coarse location of the transducer. An unambiguous binary code output is obtained with a grid layout which generates a set of unique binary codes, none of which is the the same or the binary inverse of any other member of the set.
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Cited Art Landscape
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