A low complexity, low power, programmable QRS detector based on wavelet transform for Implantable Pacemaker IC. - Thanh-Tung Hoang; Jong-Pil Son; Yu-Ri Kang; Chae-Ryung Kim; Hae-Young Chung; Soo-Won Kim (SoCC, 2006)

A 2.5-V 4-µW Low-Power Delta-Sigma Modulator for Implantable Cardiac Pacemaker with Periodic Bias Current Reduction Technique. - Chae-Ryung Kim; Yu-Ri Kang; Young-Jae Min; Soo-Won Kim (ISCAS, 2007)