Samsung Electronics Co., Ltd.

Snu Rdb Foundation

Korea Advanced Institute of Science and Technology

Industry-university Cooperation Foundation Hanyang University

Postech Academy-industry Foundation

Seong Joong Kim

Seok Ju Yun

Jae Sup Lee

Young Jun Hong

Sang Joon Kim

Joonseong Kang

Su Min Yun

Sang Wook Nam

Yong Kyu Kim

Jae Seung Lee

Sang Wook Kwon

Nam Yun Kim

Ki Young Kim

Ui Kun Kwon

Chul Kyu Kim

Yun Kwon Park

Chang Soon Park

Jin Sung Choi

Dong Zo Kim

Hyo Sun Hwang

Duck Hwan Kim

Chang Wook Yoon

Jea Shik Shin

Kang Yoon Lee

In Sang Song

Keum Su Song

Jong Pal Kim

Chisung Bae

Chang Sik Yoo

Sang Gug Lee

Tae Young Chung

Young Jin Moon

Yong Seong Roh

Hyung Gu Park

Hankyu Lee

Bum Man Kim

Han-Kyu Lee

Dae-Chul Jeong

Sok Kyun Han

A current stimulator includes a first current generation circuit configured to generate a first current, injectable into a cranial nerve cell, through a current mirroring based on a plurality of transistor pairs; and a second current generation circuit, driven by a clock, configured to generate a second current smaller than the first current by controlling a charge rate based on a voltage difference between terminals of a capacitor. A first output impedance of the first current generation circuit and a second output impedance of the second current generation circuit have a magnitude greater than or equal to a predetermined ratio to a load impedance corresponding to the cranial nerve cell.

Current stimulator for recording cranial nerve signals and operation method of current stimulator

A device with wireless communication includes: an input receiver configured to receive an input signal having a carrier frequency; a delay circuit configured to generate a delayed signal by delaying the input signal; and a clock generator configured to generate a clock signal having a clock frequency based on the delayed signal and the input signal.

Device and method with wireless communication

A near field communication (NFC) transceiver includes a receiver, a transmitter, and a clock recovery circuit. The receiver is configured to recover a reception (RX) frame encoded with power supply information and information transmitted from a reader to a tag. The transmitter is configured to recover a transmission (TX) frame by a subcarrier load modulation scheme for information transmitted from the tag to the reader. The clock recovery circuit is configured to recover a carrier signal of the TX frame as a baseband clock signal of the NFC transceiver through a rail-to-rail boosting.

Near field communication method and transceiver with clock recovery

A clock frequency supply device includes: a frequency tuner configured to receive an input signal with a carrier frequency, and tune an oscillation frequency of an oscillator based on the carrier frequency; an injector configured to inject the input signal directly into the oscillator after the tuning of the oscillation frequency is completed; and an oscillator configured to generate a reference clock signal with a reference clock frequency based on the injected input signal.

Device and method with clock frequency supply

A frequency calibration device includes an input signal generator configured to generate an input signal based on an oscillation signal and an external signal, an envelope detector configured to detect an envelope signal corresponding to the input signal, and a frequency tuner configured to tune an oscillation frequency of the oscillation signal based on an envelope frequency corresponding to the envelope signal.

Device and method to calibrate frequency

Provided is a receiver including an oscillator (OSC) configured to generate an oscillation signal based on a radio signal, a clocked envelope detector (ED) configured to detect an envelope of the oscillation signal and hold a peak value of the envelope during a time interval, and an analog-to-digital converter (ADC) configured to convert the peak value of the envelope into a digital signal.

Receiver

An antenna having a broad bandwidth and a high radiation efficiency is provided. The antenna includes a conductor, and a dielectric substrate disposed on the conductor. The antenna further includes a slot portion formed on the dielectric substrate, and a cavity formed in the dielectric substrate that corresponds to the slot portion.

Antenna having broad bandwidth and high radiation efficiency

A super-regenerative receiver (SRR) circuit includes an amplifier configured to amplify an input injection signal and output the amplified injection signal to an oscillator; and a feed-forwarding unit configured to feed-forward, to the oscillator, a filtered signal obtained by filtering the injection signal after converting a frequency of the injection signal to another frequency; wherein the oscillator is configured to receive an input of a signal in which the filtered signal is applied to the injection signal.

Super-regenerative receiving method and super-regenerative receiver (SRR) circuit with high frequency selectivity

An antenna is described including a slot formed in a cavity, a substrate configured to cover a portion of the cavity and the slot, and a first port and a second port configured to supply power to the antenna using a first feeding line and a second feeding line. Each of the feeding line and the second feeding line is connected to the slot in a vertical direction and disposed to be separate from one another. A first input impedance of the antenna from the first port differs from a second input impedance of the antenna from the second port.

2-port antenna having optimum impedances of a transmitter and a receiver

An inductor is provided. The inductor includes first and second bonding pads on a semiconductor substrate, a lead pin on a board trace, a first bonding wire being configured to connect the first bonding pad and the lead pin, and a second bonding wire configured to connect the second bonding pad and the lead pin, the second bonding wire being connected to the first bonding wire in parallel.

Inductor

A super-regenerative receiver (SRR) includes a super-regenerative oscillator (SRO), and an active channel filter disposed at a front end of the SRO, and configured to filter out an interferer in a signal received by the SRR.

Super-regenerative receiver (SRR) and super-regenerative reception method with increased channel selectivity

A reception apparatus having a dual reception structure includes a first receiver having a first quality (Q) factor and configured to receive a signal in a predetermined band in response to the first receiver being selected by a reception controller; a second receiver having a second Q factor greater than the first Q factor and configured to receive the signal in the predetermined band in response to the second receiver being selected by the reception controller; and a reception controller configured to select one of the first receiver and the second receiver based on interference information associated with an adjacent band adjacent to the predetermined band.

Reception apparatus having dual reception structure, and method of receiving signal using dual reception structure

A sliding intermediate frequency (IF) receiver and a sliding IF reception method are provided. A first local oscillation signal and a second local oscillation signal may be generated, based on a division ratio of a frequency of the first local oscillation signal to a frequency of the second local oscillation signal that is determined in advance so that an amount of power to be consumed or an error rate of the sliding IF receiver is optimized. A received input signal may be converted to a first IF signal, based on the first local oscillation signal, and the first IF signal may be converted to a second IF signal, based on the second local oscillation signal.

Sliding intermediate frequency (IF) receiver with adjustable division ratio and sliding IF reception method

An apparatus and a method for wireless power reception are provided. A wireless power receiver includes a receiving unit configured to wirelessly receive a power. The wireless power receiver further includes a power consuming unit configured to consume the power, until a voltage applied to a load reaches a predetermined value, so that an amount of a power transferred from the receiving unit to the load is less than or equal to an initial accommodation power amount of the load.

Apparatus and method for wireless power reception

A power circuit for reducing a leakage power using a negative voltage is provided. The power circuit includes a current source including a transistor including a gate. The power circuit further includes a current source control circuit connected to the gate of the transistor, and configured to apply a positive voltage to the gate of the transistor if the current source is to operate in an active mode, and apply the negative voltage to the gate of the transistor if the current source is to operate in an inactive mode.

Growing community of inventors

Hwaseong-si, South Korea

Seong Joong Kim