[NPE] Cochlear implant – Electrode
Elements and functions they replace 1. Sound collection & mechanical amplification microphone, automatic gain control
Read More[BME] Cochlear implant – Physiology
Physiology Middle ear – Ossicles malleus incus stapes Tympanic membrane and 3 ossicles that enhances
Read More[BME] Biopotentials (ECG, EMG, EEG)
Biopotentials Broadband Neural Siganl = Spikes(High frequency) + Local field potential(LFP, Low frequency) Electrogram 1.
Read More[BME] Neural interface modeling
Neural Recording Situation Nerve cell과 Electrode 사이의 저항을 R_{spread} 라고 표현했을 때 이 값을 줄이는
Read More[BME] Instrumentation amplifier
Instrumentation amplifier 1. The Operation Amplifier (op amp) 연산 증폭기 Ideal operational amplifier 하나가 아닌
Read MoreBasic anatomy and physiology of neural system
1. Cells in nervous system Nerve cells(neurons) Send and receive signals Glial cells(neuroglia) support and
Read More[Neural Prosthetic] Retinal Prosthesis
1. Retinal structure Retina의 Photoreceptor(시각수용체, 시각세포)은 빛을 받아들인다. Rod cell, Cone cell 두 종류가 있으며
Read More[Neural Prosthetic] Principle of Cochlear implant
Choclear implant – principle Structure of Cochlear 달팽이관의 가운데 부분을 가로지르는 basilar membrane에서는 주파수 분석이
Read More[DSP 07] z변환과 이산시간 시스템의 해석
z변환 1. Introduction CT 시스템 해석 CTFT: 주파수 영역 해석 한계: 불안정 시스템은 주파수 응답이
Read More[DSP 06] DTFT의 성질과 LTI System
DTFT (2) 1) DTFT의 성질 Periodicity X(\Omega + 2\pi) = X(\Omega) Linearity ax_1[n]+bx_2[n] \leftrightarrow aX_1(\Omega)
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