发明公开
EP1529315A2 HANDHELD DEVICE HAVING ULTRASONIC TRANSDUCER FOR AXIAL TRANSMISSION OF ACOUSTIC SIGNALS
审中-公开
手形装置与声音信号的超声AXIALE传输HIKING
- 专利标题： HANDHELD DEVICE HAVING ULTRASONIC TRANSDUCER FOR AXIAL TRANSMISSION OF ACOUSTIC SIGNALS
- 专利标题（中）： 手形装置与声音信号的超声AXIALE传输HIKING
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申请号： EP03765907.5申请日： 2003-07-22
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公开(公告)号： EP1529315A2公开(公告)日： 2005-05-11
- 发明人: TODA, Minoru , THOMPSON, Mitchell, L. , PARK, Kyung, Tae
- 申请人： Measurement Specialties, Inc.
- 申请人地址： 80 Little Falls Road Fairfield, NJ 07004 US
- 专利权人： Measurement Specialties, Inc.
- 当前专利权人： Measurement Specialties, Inc.
- 当前专利权人地址： 80 Little Falls Road Fairfield, NJ 07004 US
- 代理机构： de Beaumont, Michel
- 优先权： US397579P 20020722; US453322P 20030310
- 国际公布： WO2004010592 20040129
- 主分类号： H01L41/04
- IPC分类号： H01L41/04
摘要：
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.
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