> LAN administration.
> Analog/Digital Surveillance and Signal Processing Systems.
> CCTV Security and Access Control; Wireless Video/Audio/Data
> Transmission; and Audio/Video Surveillance Technologies.
> Engineering and Industrial Automation> Cyclic Digital-to-Analog Converter
> Sigma-Delta Analog - to - Digital Converter
> Preamplifier for Electret Microphones
> Digital Electret Microphones
> Low power, low voltage circuits
2006.03~2007.03: Internship at Siliconworks Company
> Study Cyclic Digital-to-Analog Converter for LCD Column Driver
Huy-Binh Le and Sang-Gug Lee, “A 1-V low power gain boosted self-cascoding current mirror OTA,” International Journal of Electronics, to be published.
Huy-Binh Le, Seung-Tak Ryu, Sang-Gug Lee, “A Fully On-chip Gm-Opamp-RC Based Preamplifier for Electret Condenser Microphones", IEICE Trans, Electron, VOL E92-C. No.4, Apr. 2009.
Le, H.B.; Nam, J.W.; Ryu, S.T.; Lee, S.G.;, “Single-chip A/D converter for digital microphones with on-chip preamplifier and time-domain noise isolation" IEE Electronics Letters, vol. 45, Issue.3, pp.151-153, Jan.29 2009.
Nguyen, H.-H.; Duong, Q.-H.; Le, H.-B.; Lee, J.-S.; Lee, S.-G.,"Low-power 42 dB-linear single-stage digitally-controlled variable gain amplifier,” IEE Electronics Letters, vol.44, Issue.13, Jun 19.2008.
Huy-Binh Le, Huy-Hieu Nguyen and Sang-Gug Lee, “ Double Speed Cyclic Digital-to Analog Converter,” HUT-ICCE 2008, Hoi an, Vietnam, June 4-6, 2008.
Huy-Binh Le, Jae-Won Nam, Seung-Tak Ryu and Sang-Gug Lee, “A CMOS Sigma-Delta Modulator for a Digital Electret Microphone with a High Input-Impedance Preamplifier,” The 15th Korean Conference on Semiconductors (KCS) 2008, 20-22 Feb. 2008 Pages: 741-742.
D.B. Yen Nguyen, Quan Le, Yong-Hun Oh, Huy-Binh Le, and Sang-Gug Lee, “A High Linearity, Efficient Bandwidth, and High Stability Transimpedance Amplifier,” 48th IEEE international Midwest Symposium on circuits & systems, Ohio, Aug. 2005.
Jae-Won Nam, Le Huy Binh, Seung-Tak Ryu, and Sang-Gug Lee “Digital microphone with high input impedance linear pre-amplifier,” Korea, Patent pending, Dec. 4. 2007.