发明名称 |
GRATING TRANSDUCER FOR ACOUSTIC TOUCHSCREEN |
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 th e gratings transducers (5a, 5b, 8a, 8b).
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申请公布号 |
CA2273956(C) |
申请公布日期 |
2002.04.30 |
申请号 |
CA19972273956 |
申请日期 |
1997.12.24 |
申请人 |
ELO TOUCHSYSTEMS, INC. |
发明人 |
KAMBARA, SHIGEKI;KENT, JOEL;ADLER, ROBERT;KANEDA, HIROSHI;MAXFIELD, BRUCE W.;TAKEUCHI, MASAO |
分类号 |
G06F3/043;G06F3/03;G06F3/033;G06F3/041;(IPC1-7):G08C21/00;G09G5/00 |
主分类号 |
G06F3/043 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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