摘要 |
An acoustic touch sensing device, comprising a substrate, having a surface; and an acoustic wave transducer (11, 12), transducing a bulk wave in the substrate propagating through the substrate along an axis intersecting the surface, wherein energy of bulk wave is coupled to a wave having a converted wave mode with energy at the surface and propagating along the surface by the gratings transducers (5a, 5b, 8a, 8b).
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申请人 |
ELO TOUCHSYSTEMS, INC.;KAMBARA, SHIGEKI;KANEDA, HIROSHI;ADLER, ROBERT;KENT, JOEL;MAXFIELD, BRUCE, W.;TAKEUCHI, MASAO |
发明人 |
KAMBARA, SHIGEKI;KANEDA, HIROSHI;ADLER, ROBERT;KENT, JOEL;MAXFIELD, BRUCE, W.;TAKEUCHI, MASAO |