Korea Advanced Institute of Science and Technology

Samsung Electronics Co., Ltd.

Lg Electronics Inc.

Lg Chem, Ltd

Lg Energy Solution, Ltd.

Ju Yong Lee

Dong Ho Cho

Gye Tae Gil

Yong Hoon Lee

Dae Hee Park

Han Young Yim

Sang Min Oh

Hyun-Jeong Kang

Tae-Young Kim

Tae Soo Kwon

Jong Bu Lim

Hyun Gi Ahn

Nak Hee Choi

Jeong Ae Ahn

Tae-Soo Kwon

Jungkeun Park

Dongho Cho

Sungwon Hong

Chung Hee Lee

Kyungmee Lee

Junghyun Song

Woo Geun Ahn

Gye-Tae Gil

Chang Bae Yoon

Daehee Park

Changbae Yoon

Gu Ho Jung

Seung Won Keum

Dang-Oh Kim

A wireless power transmission device can include a plurality of transmission coil units, in which each of the plurality of transmission coil units includes a plurality of antenna coils arranged on different three-dimensional planes, and the plurality of antenna coils are configured to generate a magnetic field passing through at least one or more of the different three-dimensional planes to transfer transmission power to a wireless power reception device.

Wireless power transmission device

An apparatus for automatically collecting gas generated in a secondary battery which is being developed as an energy source for vehicle battery cells, mobile devices, power tools, etc., and automatically injecting the gas into an analysis apparatus so that the gas can be analyzed. The automated apparatus includes a plurality of battery holders in which a plurality of secondary batteries are capable of being mounted, respectively, a battery holder tray in which the plurality of battery holders are placed, a collecting unit which moves in the direction perpendicular to the surface of a secondary battery to be analyzed among the plurality of secondary batteries; and a punching unit which moves in the direction perpendicular to the surface of the secondary battery to punch the surface of the secondary battery The battery holder tray is capable of rotating such that the surface of the secondary battery can face the collecting unit.

Apparatus and method for collecting gas

Provided are an orbital angular momentum (OAM)-based transmitter, receiver, and communication method employing a radial concentric uniform circular array (UCA). The OAM-based communication method includes transmitting, by a transmitter, OAM multimode signals through a UCA-based transmitting antenna and receiving, by a receiver, the OAM multimode signals through a radial concentric UCA structure antenna including a plurality of UCA antennas. The plurality of UCA antennas each have the same number of antenna elements, and antenna elements having the same sequence number in the plurality of UCA antennas are on the same radial line in the radial concentric UCA structure antenna.

Orbital angular momentum-based transmitter, receiver, and communication method

In an N-port pattern/polarized antenna device, two-type antenna elements are configured to have a radiation pattern to use a spherical vector wave mode with at least N orders, the antenna elements being arranged at intervals not larger than a half wavelength between them. The antenna elements comprise electric field antennas with a radiation pattern distributed in an even mode among the spherical vector wave mode, and magnetic field antennas with a radiation pattern distributed in an odd mode, the electric field antennas and the magnetic field antennas being integrated to face a different direction, each other.

Pattern/polarized antenna device and beamforming method

A massive antenna-based pattern/polarization beam division multiple access method and an apparatus performing the same are provided. The massive antenna-based pattern/polarization beam division multiple access method includes generating a plurality of beam sectors for each antenna array by using a plurality of pattern/polarization antenna arrays and performing MIMO transmission in each of the plurality of beam sectors, wherein the plurality of pattern/polarization antenna arrays each have a different radiation pattern.

Massive antenna-based pattern/polarization beam division, multiple access method, and apparatus performing the same

Provided is a joint pattern beam sectorization method and apparatuses for performing the same, wherein the joint pattern beam sectorization method including generating, in a service target region, a pattern sector corresponding to an antenna array including antennas having an identical radiation pattern by using the antenna array and generating pattern beam sectors in the pattern sector through a beamforming using the antennas.

Joint pattern beam sectorization method and apparatuses performing the same

A method and apparatus for improving a mobile problem caused by a narrow handover region in a boundary region between virtual cells constructed by a plurality of small base stations are provided. A plurality of Virtual Cells (VCs) include a plurality of Distributed Base Stations (DBSs) whose VCs cooperatively communicate with each other. An Intermediate Distributed Base Station (I-DBS) is located in a region where adjacent at least two VCs among the plurality of VCs are superimposed, and belongs to a different VC according to a time division scheme.

Method and apparatus for seamless handover operation in a wireless communication system

Provided is a communication method of a base station and a target terminal. Resources used for a channel feedback may be reduced by determining a wireless resource based on information about a channel and information about a mobility of the target terminal in each of at least one route, and by feeding back channel state information.

Communication method of base station and target terminal

Growing community of inventors

Daejeon, South Korea

Ju Yong Lee