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랜덤 신호에 의한 Saccade 안구운동의 반응시간과 정확도
김남현,백남칠 대한의용생체공학회 1981 의공학회지 Vol.2 No.2
In this paper, the reaction time and the accuracy of saccade eye movement are measured by using random pulse and periodic pulse, random pulse step and periodic pulse step through the subject utilizing the infra-red method.
Implementation of Digital Hearing Aid Using Bluetooth Audio Digital Signal Processor
최미림,안태현,백남칠,권영만,임명재,정동근 한국인터넷방송통신학회 2017 International Journal of Internet, Broadcasting an Vol.9 No.2
The sound we hear is transmitted through the atmosphere. However, both the sound we want to hear and the surrounding sound are mixed, and noise is generated, and the sound is not clearly transmitted due to factors such as distance. In particular, in closed spaces like buildings, it is often difficult to hear sounds from outside because of the sound of reflection. People with hearing impairments, such as the elderly and the deaf, have a hard time hearing the sounds they want to hear. Thus, we are developing a hearing aid that can detect radio waves. To this end, we propose the development of a hearing aid that uses FM radio and Bluetooth. These devices are expected to be useful not only for the elderly and the deaf but also in situations where information is transmitted to a large number of people, such as students and tourists, in a large space. The main purpose of this device is to enable users to hear sound correctly without blind spots.