Apparatus and method for selecting and outputting character...

Computer graphics processing and selective visual display system – Display peripheral interface input device

Reexamination Certificate

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C345S157000, C705S015000

Reexamination Certificate

active

07580028

ABSTRACT:
An apparatus and method for selecting and outputting characters by making a teeth clenching motion for disabled person are disclosed. The apparatus includes: an electromyogram signal obtaining unit including electromyogram sensors disposed at both sides for generating an electromyogram signal according to a predetermined muscle activated when a disabled person clenches teeth, and a ground electrode connected to a body of the disabled persons for providing a reference voltage; and an electromyogram signal processing unit for outputting a character by identifying a teeth clenching motion pattern of each block according to a side of teeth clenched, a duration of clenching teeth and consecutive clenching motions through analyzing the obtained electromyogram and selecting characters according to the identified teeth clenching motion pattern.

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patent: 2006/0184059 (2006-08-01), Jadidi
patent: 10-2002 0092880 (2002-12-01), None
patent: 10-2004 0079150 (2004-09-01), None

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