Author:
Koichi Kuzume
Affiliation:
Yuge National College of Maritime Technology, Japan
Keyword(s):
Disabled persons, Tooth-touch sound, Expiration signal, Signal detection, Mouse.
Related
Ontology
Subjects/Areas/Topics:
Applications and Services
;
Computer Vision, Visualization and Computer Graphics
;
Enterprise Information Systems
;
Human and Computer Interaction
;
Human-Computer Interaction
Abstract:
Presented is a mouse interface device for disabled persons using tooth-touch sound and expiration signals. It enables disabled persons to operate a personal computer easily using a mouse driven by their tooth-touch and expiration. A bone conduction microphone was used to detect the tooth-touch sound and the piezo film sensors to sense the expiration. Both sensors had superior features including being easy to handle, light weight, user-friendly, and inexpensive making the device practical as a mouse interface for disabled persons. First, we describe the novel method for detecting the tooth-touch sound in conjunction with Dyadic Wavelet Transform to improve the performance of tooth-touch sound detection. The device consists of sensor units that can sense the tooth-touch sound and the expiration signals, an individual adaptive circuit, and an output interface to connect directly with a mouse and Environmental Control System (ECS). Next, we designed the device using Hardware Description
Language (VHDL) and realized a prototype of mouse interface with a Field Programmable Gate Array (FPGA) in practice. Finally, we confirmed the basic operation of the mouse.
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