Korea University Research and Business Foundation

Skhynix Inc.

Lg Electronics Inc.

Bioinfra Life Science Inc.

Hynix Semiconductor Inc.

Bioinfra Inc.

Samsung Electro-mechanics Co., Ltd.

Korea University Industrial Academic Collaboration Foundation

Planet System Co., Ltd.

Biotrion Co., Ltd.

Chul Woo Kim

Hyun Su Park

Jong Chern Lee

Choong Hwan Lee

Jung Moon Kim

Sang Geun Bae

Chung Ha Park

Min Seob Shim

Jun Young Maeng

Dong-Suk Shin

Yong Ju Kim

In Hwa Jung

Dong Hee Park

Jong Ho Won

Dong Yoon Kim

Ho Sang Shin

Yong Dai Kim

Kyung Nam Kang

Hea Ry Oh

Oh Ran Kwon

Yong-Sung Shin

Yoon Jae Choi

Hyun Soo Chae

Jun Won Jung

Hyun Woo Lee

Jong Hwan Kim

Hyun Jin Kim

Chul Gyun Park

Dae Han Kwon

Ki Han Kim

Chan Yong Jeong

Young Woong Do

Baik Lin Seong

Soo Bin Lim

Sang Su Lee

Se Jin Park

Ji Young Jang

In Ho Park

Min Young Song

Won Jin Kim

Jin Woo Jeon

Jin Cheol Sim

Sang Duk Kim

Kyung Hwan Kim

Jung Su Jin

Sung Jun Moon

Moung Seok Baek

Byoung-Kwon Kim

Yong Sung Shin

Sung Jun Park

Yun Soo Park

Kil Hyon Lee

Ju Sang Lee

Syng-Yup Ohn

Young Ho Kwak

Seong-Il Choi

Jun Won Jeong

Seong Hoe Jeong

Hang Cheol Shin

Seong Hun Kang

Ki-Sun Ryu

Hyoung Nam Lim

Eun Hee Yeon

Se Wook Hwang

Yeon Ho Lee

Pil Je Park

Yong Jin Yang

Kyoung Sim Han

Ho Kyu Lee

Mi Young Han

Byung Hee Kim

Han Ju Oh

Disclosed are a method for increasing the viability of cells by ultrasound irradiation and an ultrasound irradiation apparatus using same. The method comprises: applying a drug and an epidermal drug delivery system onto the epidermis of a subject; and, with ultrasound parameters each being preset within a certain range, an ultrasound irradiation apparatus irradiating ultrasound onto the epidermis of the subject through an ultrasound generation unit placed within a critical range from the epidermis of the subject, wherein the epidermal drug delivery system induces the formation of cavities, i.e., cavitation around the epidermis of the subject when the ultrasound is irradiated, the ultrasound parameters at least include an ultrasound pressure and an ultrasound duty percentage, the ultrasound pressure is 0.5-1 MPa, and the ultrasound duty percentage is 1-5%.

Method for increasing cell viability by using drug delivery system and ultrasound irradiation, and ultrasound irradiation apparatus using same

Disclosed are a method for increasing the viability of a cell by irradiating the cell with ultrasonic waves, and an ultrasound irradiation apparatus using same, wherein in a state where each of ultrasonic parameters is preconfigured in a predetermined range, the ultrasonic irradiation apparatus places an ultrasonic generation unit within a threshold range from the epidermis of an object to irradiate the epidermis of the object with ultrasonic waves, the ultrasonic parameters include at least a pressure of ultrasonic waves and a duty percentage of the ultrasonic waves, the pressure of the ultrasonic waves is 0.5 MPa to 1 MPa, and the duty percentage of the ultrasonic waves is 1% to 5%.

Method for increasing viability of cell by irradiating cell with ultrasonic waves and ultrasonic irradiation apparatus using same

Disclosed is a digital LDO regulator capable of performing asynchronous binary search using a binary-weighted PMOS array. The digital LDO regulator includes a PMOS array unit including a binary-weighted PMOS array and that binary searches the PMOS array asynchronously, and a mode determining unit that operates in at least one of a fine mode, a coarse mode, and a medium mode, based on an output voltage of the PMOS array unit.

Digital LDO regulator for performing asynchronous binary search using binary-weighted PMOS array and operation method thereof

A computing device of the present invention estimates an unknown parameter &#x3b2; of a model formula when distributed sample data is acquired, wherein when an estimated quantity of &#x3b2; is acquired, a function g is estimated using a random forest model, such that when an estimated quantity of g is acquired, the estimated quantity of g and the estimated quantity of &#x3b2; are used so as estimate a function G as a prediction formula for new data corresponding to a specific item such that an estimated quantity of G is acquired, and thus new data xis received, thereby enabling the class of the specific item to be classified from the calculated value.

Two-class classification method for predicting class to which specific item belongs, and computing device using same

A sub-sampling phase-locked loop includes a first phase output unit sub-sampling an output clock of a digitally-controlled oscillator and outputting a sign bit corresponding to a voltage-domain phase and a second phase output unit outputting a gain bit corresponding to a time-domain phase based on a pulse width set according to the output clock and a threshold time set according to the reference clock.

Dual-domain sub-sampling phase-locked loop

A test apparatus may include transceivers and a global de-skew circuit. In a training mode, the transceivers provide first timing information obtained by delaying a first data signal in the range of up to a preset unit interval based on a clock signal and receive second timing information corresponding to timing differences between a slowest transceiver and the remaining transceivers. In an operation mode, the transceivers provide compensation data to a plurality of DUTs (Devices Under Test) substantially simultaneously. The compensation data may be obtained by delaying a second data signal by multiples of the preset unit interval in response to the second timing information. In the training mode, the global de-skew circuit receives the first timing information, calculates, using the first timing information, the timing differences between the slowest transceiver and the remaining transceivers, and provides the second timing information corresponding to the timing differences to the transceivers.

Test apparatus

A delay locked loop includes a main delay circuit including a plurality of unit delay lines that generate a plurality of internal clocks by delaying an input clock, delay amounts of the plurality of unit delay lines being adjusted in response to code signals; a sub-delay circuit including a plurality of sub-delay lines that generate a plurality of phase clocks by respectively delaying the input clock and the plurality of internal clocks; a phase detector configured to compare phases of the plurality of phase clocks and provide a phase detection signal according to a result of the comparison; and a digital circuit configured to update the code signals corresponding to the plurality of unit delay lines one by one at a time when the phase detection signal is provided to the digital circuit.

Delay locked loop

Embodiments disclose a delay locked loop. The delay locked loop including a main delay circuit configured to generate initial clocks by delaying an internal clock, and sub-delay lines configured to generate phase clocks having a phase difference corresponding to a desired initial delay by respectively delaying the internal clock and the initial clocks. The phase difference among the phase clocks may be adjusted according to delay values of the sub-delay lines.

An optical receiver includes a transimpedance amplifier that converts a current signal corresponding to an optical signal into a voltage signal. The transimpedance amplifier includes an input terminal receiving the current signal, an output terminal outputting the voltage signal, an inverting circuit including a pull-up device that pull-up drives the voltage signal of the output terminal according to the current signal, and a pull-down device that pull-down drives the voltage signal of the output terminal according to the current signal, a feedback resistor electrically connected between the input and output terminals, a first resistor electrically connected between the input terminal and the pull-up device, and a second resistor electrically connected between the input terminal and the pull-down device.

Optical receiver

An image sensing device and a method for forming the same are disclosed. The image sensing device includes a substrate including one or more photoelectric conversion elements, and a grid structure disposed over the substrate. The grid structure includes an air layer, a support film formed over the air layer, and a capping film formed at side surfaces of the air layer and the support film and at a top surface of the support film.

Image sensing device and method for forming the same

An optical transceiver includes an optical transmitter and an optical receiver. The optical transmitter includes a laser diode configured to convert a current signal into an optical signal; a main driver comprising first and second output terminals that have a differential structure, the main driver configured to drive the first and second output terminals in response to differential input signals and to provide the current signal to the laser diode through the first output terminal; and an impedance balancer configured to match impedances of the first and second output terminals by adjusting the impedance of the second output terminal according to signal states of the first and second output terminals.

Optical transceiver

A method for diagnosing lung cancer in a subject by using a complex biomarker group is provided. The method includes steps of: (a) a computing system (1) acquiring a model M by using expression level data by individual biomarkers in the complex biomarker group and then (2) acquiring expression level data by the individual biomarkers measured from a biological specimen of the subject or their processed data B; and (b) the computing system determining whether lung cancer is detected in the subject by using the acquired data of the subject by referring to the model M; wherein the complex biomarker group includes CEA, HE4, ApoA2, TTR, sVCAM-1 and RANTES.

Method for using information on complex biomarker group to diagnose lung cancer in a subject and diagnostic kit and computing system using the same

Provided is a power detection circuit for tracking a maximum power point of a solar cell. The power detection circuit includes: an average voltage extracting unit which extracts an average voltage Vfrom an external voltage Vinput from an external energy source; a ripple voltage extracting unit which extracts a ripple voltage including current information of the external voltage Vfrom the external voltage V; a voltage-time converter which generates a ramp voltage Vchanging at a predetermined rate and converts the average voltage Vand the ripple voltage into corresponding time information &#x394;tand &#x394;tbased on the ramp voltage V; a time-digital converter which converts the time information &#x394;tfor the ripple voltage into a digital code t[n:0]; and a time multiplier which multiplies the digital code t[n:0] and the time information &#x394;tfor the average voltage Vto output a specific voltage value.

Power detection circuit for tracking maximum power point of solar cell and method thereof

Growing community of inventors

Seoul, South Korea

Chul Woo Kim