DEVICE DESIGN FOR THE NOVEL HANDWRITING RECOGNITION SYSTEM

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Abstract:

A microelectromechanical systems-based handwriting system device was designed. We proposed an ominidirectional acoustical sensor microarray which can offer isotropic directional sensitivity with a high radiation acoustic power when it as a transmitter and a high array spatial gain (AG) when it as a receiver. It has been designed for use in the novel handwriting recognition system to attain a large writeable scale and to write in any direction. The proposed array device based on novel ferroelectric thin film has excellent performance, miniature size and high reliability, and could be fabricated with conventional integrated circuit process.

Keywords: AG; PZT; directivity; handwriting recognition system; omnidirectional array; power

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/10584580802543276

Affiliations: Institute of Microelectronics, Tsinghua University, Beijing, China,Tsinghua National Laboratory for Information Science and Technology, Beijing, China

Publication date: January 1, 2008

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