US PATENT SUBCLASS 345 / 177
.~.~ Including surface acoustic detection

Current as of: June, 1999
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345 /   HD   COMPUTER GRAPHICS PROCESSING, OPERATOR INTERFACE PROCESSING, AND SELECTIVE VISUAL DISPLAY SYSTEMS

156  DF  DISPLAY PERIPHERAL INTERFACE INPUT DEVICE {8}
173  DF  .~ Touch panel {5}
177.~.~ Including surface acoustic detection

DEFINITION

Classification: 345/177

Including surface acoustic detection:

(under subclass 173) Subject matter wherein the touch panel includes surface acoustical transducers for determining the position of a touch.

SEE OR SEARCH CLASS

367, Communications, Electrical: Acoustic Wave Systems and Devices, appropriate subclasses for acoustical transducers in general.