Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Sungkyunkwan University

Pohang University of Science and Technology Foundation

Jaesup Lee

Donghan Kim

Sungdo Choi

Kang Yoon Lee

Hong Jin Kim

Hyung Gu Park

Tae-Young Chung

Jae-Seung Lee

Sang-Gug Lee

Byung Kwan Kim

Jong-Sok Kim

Tsuyoshi Sugiura

Bum-Man Kim

Jongwon Yu

Seok-Kyun Han

KyungSik Lee

Dae-Chul Jeong

Seungtae Khang

Injune Hwang

An augmented reality (AR) system time-reverses a detection signal and a data signal based on a location detection signal, and outputs the time-reversed detection signal and data signal. Accordingly, data transmission efficiency may increase.

Augmented reality generating device, augmented reality display device, and augmented reality system

A processor-implemented robot control method includes: determining a target position from map information; estimating a candidate region for a current position in the map information based on information sensed by an inertial measurement unit (IMU) and first image information received from an image sensor; estimating the current position in the candidate region based on second image information received from either the image sensor or another image sensor; and controlling a movement of a vehicle charging robot based on the target position and the current position.

Robot with vehicle charging

A distance measuring method and apparatus are provided. The distance measuring apparatus emits a transmission signal while changing a frequency over time, receives a reception signal from an object in response to the transmission signal being reflected from the object, samples a beat frequency indicating a difference between a frequency of the transmission signal and a frequency of the reception signal in a sampling range that changes based on the beat frequency, and determines a distance to the object based on the sampling.

Method and apparatus for measuring distance

A radar image processing method includes acquiring captured images from radars synchronized to perform beamforming on a same point at a same time, synthesizing the captured images based on at least one overlapping area of the captured images, and generating a high-resolution image based on the synthesized images.

Radar image processing method, apparatus, and system

An object detection method and apparatus is disclosed, where the object detection method includes determining a weather condition based on a noise floor measured in an elevated direction, and detecting an object based on comparing a signal level of a target signal measured in a depressed direction and a threshold level corresponding to the determined weather condition.

Method and device to detect object

A method performed by an apparatus included in a vehicle to detect an object using a radar includes: propagating, in a normal mode period of an operating period for detecting objects, a normal mode transmission signal generated based on a default code sequence including at least two codes; receiving a normal mode reception signal in the normal mode period; detecting, in the normal mode period, an object based on the default code sequence and the normal mode reception signal; receiving a listening mode reception signal in a listening mode period of the operating period; acquiring a correlation between the listening mode reception signal and the default code sequence; and changing the default code sequence based on the correlation.

Method and apparatus for detecting object using radar of vehicle

A wireless power transmitter includes a signal generator for generating power signals, a modulator for modulating a phase of a power signal to be time reversed based on beacon signals received from the wireless power transmitter and modulating an amplitude of a power signal to be amplified, a controller for providing a phase and amplitude control algorithm to be performed by the modulator, and an antenna unit for transmitting the power signals and receiving the beacon signals. The wireless power transmitter controls the amplification of amplitudes by using the phase and amplitude control algorithm, thereby improving wireless power transmission efficiency. In addition, the wireless power transmitter includes a multiple polarization antenna to enable high-efficiency wireless power transmission, regardless of a direction of the power signals and a direction of polarization.

Wireless power transmitter utilizing phase and amplitude control algorithm and wireless power receiver

A transceiver may include a reception (Rx) radio frequency (RF) part configured to process a received signal, a transmission (Tx) RF part configured to process a transmitted signal, and a phase lock loop (PLL) configured to provide a reception frequency to the reception RF part and provide a transmission frequency to the transmission RF part. The PLL may be controlled according to whether the reception RF part or the transmission RF part is on. In addition, a transceiver may include quenching waveform generator (QWGs) to control quenching waveforms of the RF parts corresponding to a plurality of antennas. The quenching waveforms may be generated respectively by VCOs operating at a same frequency. The QWGs may control the VCOs such that the quenching waveforms do not overlap.

Transceiver using technique for improvement of phase noise and switching of phase lock loop (PLL)

A phase locked loop includes a signal receiver configured to generate a mixed signal based on the received signal and an oscillator signal, and a frequency control circuit configured to compare the mixed signal to a reference signal, and adjust the oscillator signal based on a result of the comparing.

Phase locked loop using received signal

A leakage current-based delay circuit is provided, wherein the delay circuit may include a first transistor circuit and a second transistor circuit, each transistor circuit may include a p-type transistor, an n-type transistor, an n-node between a drain node of the p-type transistor and a gate node of the n-type transistor, and a p-node between a gate node of the p-type transistor and a drain node of the n-type transistor. The p-node of the second transistor circuit may be charged based on a power source voltage through the first transistor circuit during a first time interval of an input signal, and the n-node of the second transistor circuit may be discharged based on a ground voltage through the first transistor circuit during the first time interval.

Growing community of inventors

Yongin-si, South Korea

Jaesup Lee