Handwriting Input System Based on Ultrasonic Transducers

A handwriting input system was developed using three collinear ultrasonic transducers. These collinear polyvinylidene fluoride （PVDF） transducers were specially designed for the handwriting input system to give a large writeable area with writing in any direction. Driver and detection circuits were...

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Bibliographic Details
Published inTsinghua science and technology Vol. 16; no. 3; pp. 290 - 294
Main Author 王宇峰 杨轶 孔祥明 廖文俊 王利刚 任天令 刘理天
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.06.2011
Tsinghua National Laboratory for Information Science and Technology, Institute of Microelectronics,Tsinghua University, Beijing 100084, China
Subjects
Circuits
collinear transducers
driver and detection circuit
Drivers
Electric potential
Handwriting
handwriting input system
Polyvinylidene fluorides
PVDF
Transducers
Voltage
低驱动电压
手写系统
手写输入系统
检测电路
聚偏二氟乙烯
超声换能器
超声波传感器
handwriting input system
driver and detection circuit
PVDF
collinear transducers
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Summary:A handwriting input system was developed using three collinear ultrasonic transducers. These collinear polyvinylidene fluoride （PVDF） transducers were specially designed for the handwriting input system to give a large writeable area with writing in any direction. Driver and detection circuits were developed for the handwriting system. This handwriting input system based on 2-dimensional position tracing has large writeable area （A4 paper）, low drive voltage （5 V）, and is independent of the handwriting pad or the pen.
Bibliography:A handwriting input system was developed using three collinear ultrasonic transducers. These collinear polyvinylidene fluoride （PVDF） transducers were specially designed for the handwriting input system to give a large writeable area with writing in any direction. Driver and detection circuits were developed for the handwriting system. This handwriting input system based on 2-dimensional position tracing has large writeable area （A4 paper）, low drive voltage （5 V）, and is independent of the handwriting pad or the pen.
11-3745/N
collinear transducers; PVDF; driver and detection circuit; handwriting input system
WANG Yufeng , YANG Yi , KONG Xiangming , LIAO Wenjun , WANG Ligang , REN Tianling, LIU Litian Tsinghua National Laboratory for Information Science and Technology, Institute of Microelectronics, Tsinghua University, Beijing 100084, China
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1007-0214
1878-7606
1007-0214
DOI:10.1016/S1007-0214(11)70042-6