Sungkyunkwan University

Skaichips Co., Ltd.

Samsung Electro-mechanics Co., Ltd.

Gct Semiconductor, Inc.

Samsung Electronics Co., Ltd.

University of Seoul Industry Cooperation Foundation

Skaichipsco., Ltd.

Intellectual Discovery Co., Ltd.

Silicon Mitus, Inc.

Kang Yoon Lee

Young Gun Pu

Jong Wan Jo

Hyung Gu Park

Young Jun Park

Hong Jin Kim

Kyeongho Lee

Dong In Kim

Yido Koo

Dong Soo Park

Jong Jin Park

Joonbae Park

Jae Bin Kim

Jeong-Woo Lee

Yun Gwan Kim

Jong Ho Moon

Joong Ho Choi

Jong Woo Lee

Chul Gyun Park

Dong Gyun Kim

Je Hyuk Ryu

Byung Joo Hong

Joo Young Chun

Chang Soo Kang

Min Young Kim

Jeongwoo Lee

Jaesup Lee

Eunseok Song

Young Jun Hong

Yoo Sam Na

Joo Hyung Lee

Yoo Hwan Kim

Jae Shin Lee

Seok Ju Yun

Seong Joong Kim

Jae Sup Lee

Kyung Duk Choi

Hyungki Huh

Joon Hong Park

Yeon Jae Jung

Seong Jin Oh

Byeong Gi Jang

Sang Yun Kim

Dong Gyu Kim

Jung Yeon Kim

Hyung Ki Huh

Dong Hyeon Seo

Sung June Byun

Joon Mo Yoo

Dong Soo Lee

Dae Hoon Han

Seo Hyung Kim

Keum Cheol Hwang

Youngoo Yang

Kyoungtae Kang

Ju Hyun Park

Imran Ali

Jae Hyung Jang

Jeong Ah Jang

Jongho Moon

Sung Jun Byun

Seok Kee Kim

Ho Jun Shin

Ii Kwon Jang

Hamed Abbasi Zadeh

Dae Young Choi

Dong Su Lee

Han Suk Seo

Joo Young Lee

Ali Imran

Qurat Ul Ain

Nak Young Ko

Kwan Tae Kim

Seung Ryung Ryu

Truong Thi Kim Nga

Muhammad Riaz Ur Rehman

Joonban Park

Jae Hyeong Jang

Ji Hun Kang

In Seong Kim

Reza Eftekhari Rad

Kwang Muk Choi

Provided is a power supply apparatus for self-powered device including a power module configured to supply first driving power, a sensor module configured to be operated by the first driving power, and an energy harvesting module configured to select energy power with a higher signal intensity from among energy power from energy sources and harvest energy using the selected energy power as second driving power.

Power supply apparatus for self-powered device and operation method thereof

Disclosed is technology related to a signal synthesis apparatus that corrects an offset between a closed loop and an open loop to output a frequency-modulated signal. The signal synthesis apparatus includes a VCO configured to output a frequency signal in response to an input voltage, an energy storage unit configured to output a voltage using stored energy, a VCO input selector configured to connect the VCO to input of the energy storage unit in the case of a closed loop mode and connect the VCO to output of the energy storage unit in the case of an open loop mode, and a digital controller configured to control an operation mode of the VCO input selector and transmit an offset control signal for adjusting an offset of a voltage output from the energy storage unit to the energy storage unit.

Device and method for signal synthesis compensating the frequency offset of open loop

Disclosed is technology related to a signal synthesis apparatus that corrects an offset between a closed loop and an open loop to output a frequency-modulated signal. The signal synthesis apparatus includes a VCO configured to modulate and output a frequency signal in response to an input voltage by including a modulation cap bank having a plurality of capacitors, an energy storage unit configured to output a voltage using stored energy, a VCO input selector configured to connect the VCO to input of the energy storage unit in the case of a closed loop mode and connect the VCO to output of the energy storage unit in the case of an open loop mode, and a digital controller configured to control an operation mode of the VCO input selector and transmit a modulation control signal for adjusting a connection state of the capacitors of the modulation cap bank to the VCO.

Signal synthesis apparatus and method capable of correcting frequency offset of open loop

Disclosed are an artificial intelligence algorithm-based wireless power transmitter, wireless power receiver, and wireless power charging system that are capable of high-speed response to environmental changes and that can optimize the power efficiency of a wireless power receiver, estimate a dynamic location from a signal received from the wireless power receiver using artificial intelligence technology, and dynamically transmit wireless power to a prioritized wireless power receiver according to a power state.

Artificial intelligence algorithm-based wireless charging system capable of high-speed response to environmental changes

Provided are a scalable analog passive intermodulation (PIM) module, a method of controlling analog PIM, a signal processing circuit, and a sensor device. The scalable analog PIM module includes a first plural number of digital-to-analog converters (DACs), a first plural number of static random access memory (SRAM) calculators connected to the first plural number of DACs, at least one analog-to-digital converter (ADC) connected to the first plural number of SRAM calculators and configured to convert an analog convolution result signal into digital convolution data, and an analog PIM controller configured to output an enable control signal for enabling a second number, which is equal to or less than first plural number, of SRAM calculators among the first plural number of SRAM calculators to the first plural number of SRAM calculators on the basis of the convolution data output from the ADC.

Scalable analog PIM module, method of controlling analog PIM, signal processing circuit, and sensor device

The present invention relates to an integrated circuit for processing biosignals, a biosignal processing apparatus, and a biosignal processing system, and the integrated circuit includes: a digital conversion unit for converting an analog biosignal input through a biosignal input terminal into digital biodata; and an AI block for processing a plurality of biodatas converted through the digital conversion unit according to an artificial intelligence processing flow, and outputting a result data according to processing of the plurality of biodatas.

Biosignal processing apparatus based on intelligent control

A power management apparatus, includes an artificial intelligence (AI) controller configured to monitor a user pattern, based on frequency band selection information of all users using a base station, to predict the user pattern, and a DC-DC converter configured to output a supply voltage based on the predicted user pattern.

Power management apparatus based on user pattern and method

As inputs of a controller of a direct current (DC)-DC converter are sampled for a predetermined time and thus two-dimensional state information in which one axis is an input physical quantity and the other axis is a time is generated, the two-dimensional state information is processed by a convolutional neural network to determine and output one of a plurality of control signals. An artificial intelligence control part may operate in accordance with a plurality of operation conditions or dynamically determined operation conditions by applying different artificial intelligence engines according to operation modes.

DC-DC converter with intelligent controller

Provided is a maximum power point tracking (MPPT) apparatus for an energy harvesting system and an MPPT control method. A count value of the time for an output voltage of a direct current (DC)-DC converter to reach a high reference voltage is used to change and output a control parameter of the DC-DC converter for maximum power.

Maximum power point tracking apparatus for energy harvesting system and maximum power point tracking control method

A current sensor automatically adjusting an offset voltage, includes an input corrector, upon receiving a first voltage, a second voltage, and a control signal, configured to correct either one or both of the first voltage and the second voltage to reduce an absolute value of a difference between the first voltage and the second voltage based on the control signal, and output a correction result; an input amplifier configured to amplify a voltage output from the input corrector; an output amplifier configured to generate an output voltage when a voltage amplified by the input amplifier is input; a controller including a switch connected to one of voltages amplified by the input amplifier to be grounded when a difference between the first voltage and the second voltage is larger than a first threshold value; and a correction circuit controller configured to generate the control signal to input to the input corrector.

Current sensor capable of automatic adjustment of offset voltage

Disclosed is a power supply apparatus including a DC-DC converter implemented as one integrated circuit. A duty of a switching pulse of a DC-DC conversion unit is controlled according to a phase difference between a feedback clock signal and a reference clock signal having a frequency proportional to an output voltage of the DC-DC conversion unit. The duty of the switching pulse may be controlled from an output of a charge pump to be charged and discharged according to the phase difference signal between the feedback clock signal and the reference clock signal.

Power supply apparatus with dynamic scaling feature of switching frequency

The present invention provides a technique for a power supply, and particularly, a buck-boost DC-DC converter which is advantageous for energy harvesting from a low voltage. An LC resonant unit generates a pair of clock type signals having phases opposite to each other from an input signal. These signals are supplied to the clock input terminals of the Dickson charge pumps connected in series and converted into power signals having an amplified voltage so as to match the rated input specification of the buck-boost DC-DC converter of a post-stage.

Buck-boost DC-DC converter

A technology related to an electronic circuit, specifically, a phase locked loop or a frequency synthesizing apparatus, is disclosed. The frequency synthesizing apparatus includes an injection locked frequency divider and a replica frequency divider having the same circuit configuration as the injection locked frequency divider. A control value required for self-oscillating at a target frequency using the replica frequency divider is determined. When the injection locked frequency divider fails injection locking on a first attempt, the injection locking may be attempted using the determined control value. On the first attempt, the control value of the injection locked frequency divider may be determined and stored in advance according to a temperature and a supply voltage.

Low power frequency synthesizing apparatus

A method of performing adaptive mode switching in a transmitter of a dual mode simultaneous wireless information and power transmission (SWIPT) system, incudes receiving received power of a receiver in a channel; comparing the received power with a predetermined threshold value; selecting one of a single tone mode or a multi-tone mode as a single/multi-tone mode based on the comparison result; selecting a modulation index based on the selected single/multi-tone mode and the received power; and transmitting the selected single/multi-tone mode, the selected modulation index, and a duty cycle to the receiver. The duty cycle is determined based on at least one of power consumed for decoding a single tone signal, power consumed for decoding a multi-tone signal, and power harvested during the channel by the receiver.

Receiver control apparatus and method for simultaneous wireless information and power transmission operating in dual mode

A receiver that receives a simultaneous wireless information and power transfer (SWIPT) signal is provided. The receiver comprises an antenna configured to receive a SWIPT signal including a power signal and an information signal; an energy harvester configured to receive the SWIPT signal from the antenna when a communication mode is an energy harvesting (EH) mode; and an information decoder configured to receive the SWIPT signal from the antenna when the communication mode is an information decoding (ID) mode.

SWIPT signal receiver and SWIPT signal receiving method

Growing community of inventors

Seoul, South Korea

Kang Yoon Lee