Inventor

LEE SANG-GUG

KR46 patents

⚠️ This page may combine multiple inventors who share the name “LEE SANG-GUG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LEE SANG-GUG

KOREA ADVANCED INST SCI & TECH

Image sensing device and focal plane array device using frequency conversion for real-time terahertz imaging

Power management device for energy harvesting

Optimized battery charging method based on thermodynamic information of battery

Current mode hysteretic buck converter with auto-selectable frequency locking circuit

High-gain amplifier based on dual-gain boosting

Power management integrated circuit for harvesting energy and energy harvesting system including the same

Method and apparatus for modulating/demodulating an FSK signal

Antenna module for transmitting or receiving terahertz waves and focal plane array structure for real-time terahertz imaging

Method for high-frequency amplifier using power gain-boosting technique

UNIV INFORMATION & COMM

Current-reuse bleeding mixer

Source-injection parallel coupled LC-quadrature voltage controlled oscillator

Low power quadrature voltage controlled oscillator using back gate

Differential voltage controlled oscillator using complementary transistors cross-coupled in series, and transceiver using the same

Low voltage balun circuit

Heterodyne receiver for low noise and image frequency repression

SAMSUNG ELECTRONICS CO LTD

Low noise amplifier for ultra wide band

Harmonic rejection mixer and harmonic rejection mixing method

Low noise amplifier for ultra wide band

Apparatus and method generating multi RF tone signals in UWB communication system

Phase locked loop using received signal

Envelope detection apparatus dynamically controlled in response to input signal and envelope detection method thereof

KOREA ELECTRONICS TELECOMM

Automatically gain controllable linear differential amplifier using variable degeneration resistor

Switch, negative resistance cell, and differential voltage controlled oscillator using the same

Burst mode optical receiver for maintaining constant signal amplitude

Burst mode optical receiver considering characteristic of extinction ratio of received optical signal

Low voltage frequency synthesizer using boosting method for power supply voltage of charge pump

Direct conversion receiver including a charge area decimation filter

LEE SANG-GUG

GM-boosted differential drain-to-source feedback colpitts voltage controlled oscillator

Signal converting apparatus and receiving apparatus for supporting concurrent dual bands in wireless communication system

Frequency synthesizer, method of generating output frequency thereof and method of correcting conversion gain thereof

HARRIS CORP

Low voltage RF amplifier and mixed with single bias block and method

Method of making a reference current generator

SAMSUNG ELECTRO MECH

Variable gain amplifier with wide gain variation and wide bandwidth

Method of generating multi-channel local oscillation frequencies

KANG HO-YONG

Wake-up receiver and wake-up method using duty cycling and power off technique

Digital automatic gain control apparatus and method in burst mode optical receiver

JANG YEONG-SHIN

Digital feedforward sigma-delta modulator in analog-to-digital converter and modulation method thereof

INFORMATON AND COMM UNIVERSITY

Symmetric multi-layer spiral inductor for use in RF integrated circuits

INTERSIL CORP

Low voltage RF amplifier and mixed with single bias block and method

NEOREACH INC

Complementary voltage controlled oscillator

LEE YOUNG JAE

DC offset cancellation circuit

RES & IND COOPERATION GROUP

Offset local oscillator without using frequency divider

KANG HOYONG

Super regenerative receiver and method of saving power of the same

ULSAN NAT INST SCIENCE & TECH UNIST

Electromagnetic wave oscillator, plasma wave power extractor and electromagnetic wave detector

KIM JI HUN

Circuit and method for measuring capacitance value of touch screen

KIM SUN A

Apparatus for rejecting image in receiver