Soundwave position digitizer
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United States of America Patent
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-
Sep 20, 1988
Grant Date -
N/A
app pub date -
Dec 1, 1983
filing date -
Dec 1, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sound wave position digitizer has a pair of sound wave beam transducers, each spaced a predetermined distance from the edges of a data surface such that the beams intersect on the data surface at substantially orthogonal angles. The beams are folded by reflectors to achieve compactness and, to further improve the form factor, the beams are coupled to the folding reflectors by acoustic horns which intersect and have a common section.
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