发明名称 |
HANDHELD DEVICE HAVING ULTRASONIC TRANSDUCER FOR AXIAL TRANSMISSION OF ACOUSTIC SIGNALS |
摘要 |
<p>A handheld stylus (200) having an elongated housing (210), a writing and drawing implement (230) disposed within the housing and including a tip (242) 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 (110) disposed within the housing. The transducer (110) 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.</p> |
申请公布号 |
KR20050035869(A) |
申请公布日期 |
2005.04.19 |
申请号 |
KR20057001221 |
申请日期 |
2005.01.21 |
申请人 |
MEASUREMENT SPECIALTIES, INC. |
发明人 |
PARK, KYUNGTAE;THOMPSON, MITCHELL, L;TODA, MINORU |
分类号 |
H04R17/00;A61B8/00;B06B1/06;G06F3/033;H01L41/04;H01L41/08;H01L41/09;H01L41/187;H01L41/193;H04B;(IPC1-7):A61B8/00 |
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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