发明名称 |
HANDHELD DEVICE HAVING ULTRASONIC TRANSDUCER FOR AXIAL TRANSMISSION OF ACOUSTIC SIGNALS |
摘要 |
A handheld stylus having an elongated housing, a writing and drawing implement disposed within the housing and including a tip extending through an opening at an end of the housing where ultrasonic waves radiate therefrom and are used for determining a position of the stylus; and at least one ultrasonic transducer disposed within the housing. The transducer may be a cylindrical piezoelectric transducer having a holder and a cylindrical piezoelectric film spanning between at least two spaced apart cylindrical surfaces of the holder, or a flat transducer having a diaphragm, and a piezoelectric material disposed on a surface of the diaphragm. |
申请公布号 |
EP1529315(A4) |
申请公布日期 |
2006.10.18 |
申请号 |
EP20030765907 |
申请日期 |
2003.07.22 |
申请人 |
MEASUREMENT SPECIALTIES, INC. |
发明人 |
TODA, MINORU;THOMPSON, MITCHELL, L.;PARK, KYUNG, TAE |
分类号 |
H04R17/00;A61B8/00;B06B1/06;G06F3/033;H01L41/04;H01L41/08;H01L41/09;H01L41/187;H01L41/193;H04B |
主分类号 |
H04R17/00 |
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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