The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2009
Filed:
Apr. 20, 2006
Hyuk Jeong, Daejeon, KR;
Jong Sung Kim, Daejeon, KR;
Wookho Son, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
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.