Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Electronics and Telecommunications Research Institute

Samsung Electro-mechanics Co., Ltd.

Hyundai Electronics Industries Co. Ltd.

Regen Biotech Inc.

Yong Hoon Lee

Tae Kyung Kim

Chul Woo Lee

Kun Ho Cho

Jang Hoon Yoo

Chong Sam Chung

Pyong Yong Seong

Hyun Seob Choi

No Kyong Park

Eui Rim Jeong

Hee Jung Yu

Tae Soo Kwon

Dong Ho Cho

Young Chul Sung

Young Jun Ryu

Sung Ho Choi

Kyung Hun Jang

Chang Yong Shin

Seong Rag Kim

Jong Ok Ha

Young Seok Oh

Sang Il Lee

Ju Yong Lee

Dae Hee Park

Inhyoung Kim

Gye Tae Gil

Sang Min Oh

Soon Il Hong

Snag On Choi

In Ji Kim

Hyun-Jeong Kang

Sung-Hoon Kim

Young Jun Hong

Jeong-ho Park

Hyun Ho Choi

Soo In Lee

Cheul Soon Kim

Young-Ho Jung

Hyo Sun Hwang

Eung Sun Kim

Jong Woo Lee

Hak Soo Kim

Heung Mook Kim

Won Jae Shin

Yong Tae Lee

Sung Ik Park

Young-Doo Kim

Won Jong Noh

Heejung Yu

Jong Soo Lim

Ho Won Lee

In-Kyeong Choi

Seong-Jin Kim

Sae-Young Chung

Min Hyun Kim

Hyoung Soo Lim

Ho Min Eum

Seong Jin Kim

Jae Hyun Seo

Hong Kyun Yim

Won-Yong Shin

Woong Sup Lee

Min-Hyun Kim

Soon Chan Park

Jae Yong Eum

Jinho Choi

Han Young Yim

Young Bin Yoon

Gun Poong Kim

Jeung Rak Lee

Chang Bae Yoon

Sang On Choi

Seung Hyeok Ahn

Kun Pil Lee

Jin Hyun So

Young Ho Jung

Jak Heun Yang

Seung Won Keum

Seung Chul Hong

In Seok Hwang

Young Wook Sirl

Kwang Pyo Lee

A display apparatus including a display which displays content, a communicator configured to communicate with a remote controller and an external device, and a controller. The controller being configured to, upon receiving a control command from the external device, control operation of the display apparatus based on the received control command, control the received control command to be transmitted to the remote controller, and control the communicator to transmit the received control command to the external device through the remote controller.

Agent apparatus, electrical apparatus, and method of controlling agent apparatus

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

A high-frequency signal predistortion device includes a high-frequency signal estimator, a predistortion estimator, and a predistorter. The high-frequency signal estimator is configured to determine non-linear distortion characteristics of high-frequency signals transmitted by antennas. The predistortion estimator is coupled to the high-frequency signal estimator. The predistortion estimator is configured to determine a predistortion coefficient based on the non-linear distortion characteristics. The predistorter is coupled to the predistortion estimator. The predistorter is configured to distort a base signal of the high-frequency signals based on the predistortion coefficient.

High-frequency signal predistortion device and nonlinear distortion correcting device for power amplifier

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

An apparatus includes a first predistorter configured to calculate a first predistortion parameter and configured to distort an input signal using the first predistortion parameter to output a first distortion signal, a second predistorter configured to calculate a second predistortion parameter and configured to distort the first distortion signal using the second predistortion parameter to output a second distortion signal, a power supply configured to receive the first distortion signal to generate a first envelope signal, and configured to limit a bandwidth of the first envelope signal to obtain a second envelope signal to supply a source voltage, and a power amplifier configured to receive the source voltage and to output an output signal obtained by amplifying the second distortion signal.

Envelope tracking power amplifying apparatus and method

A display device, a remote control device for the display device, a method of controlling the display device, a method of controlling the remote control device, and a method of controlling a server includes collecting at least one piece of situation information or receiving at least one piece of situation information from a remote control device, determining a current state of a user based on the collected or received at least one piece of situation information, instructing the remote control device to output a notification signal corresponding to the current state of the user, and generating the control command according to the current state of the user and providing a sense-based image service to the user according to the control command.

Display device, remote control device to control display device, method of controlling display device, method of controlling server and method of controlling remote control device

A method and apparatus for operating an analog beam is provided. The apparatus includes a hybrid beam-forming structure having a small number of digital chains provided in a digital stage and a signal is transmitted and received in a Time Division Multiple Access (TDMA) scheme. The apparatus includes an analog beam-forming operating unit configured to change the analog beam for a counterpart device for which use of a next frame is to be permitted, upon receiving a request for using the next frame from at least one of multiple devices that transmit and receive signals in units of frames and a communication unit configured to transmit information indicating that the analog beam is changed to permit the use of the next frame by the counterpart device to the multiple devices.

Apparatus and method for operating analog beam in a beam division multiple access system

An agent apparatus to relay operation control information between at least one remote controller and at least one electrical apparatus, the agent apparatus includes a communication unit to receive operation control information, of the at least one electrical apparatus, transmitted from the remote controller and to transmit the operation control information to the at least one electrical apparatus, a controller to learn the received operation control information of the at least one of electrical apparatus to generate a macro and to control output of the generated macro, and a storage unit to store the operation control information of the at least one electrical apparatus and the generated macro.

Disclosed herein is a low-cost digital predistortion apparatus using envelope detection feedback. The low-cost digital predistortion apparatus includes a digital predistortion unit and an envelope detection feedback unit. The digital predistortion unit converts the output of a predistorter into analog signals, frequency-modulates the analog signals into a pass band signal, and amplifies the frequency-modulated signal via a power amplifier. The envelope detection feedback unit converts the difference between the input and output of the power amplifier of the digital predistortion unit and the output of the power amplifier into baseband signals, respectively, converts the baseband signals into digital signals, estimates the nonlinear distortion characteristic output of the power amplifier, calculates a predistortion parameter that is used to compensate for the estimated nonlinear distortion characteristic output of the power amplifier.

Low-cost digital predistortion apparatus and method using envelope detection feedback

According to the present invention, a digital pre-distortion device and method for use in a dynamic spectrum allocation system, which uses a breadband frequency range, such as a cognitive radio (CR) system, are implemented. Also, while as conventional pre-distortion device only enable the linearization of a signal of a fundamental frequency band, the digital pre-distortion device and method according to the present invention enable not only the linearization of a basic signal on frequency f, but also simultaneously enable the elimination of harmonic signals on the high frequencies of 2f, 3f, 4f, etc. The digital pre-distortion device for a broadband power amplifier according to a preferred embodiment of the present invention comprises: a nonlinear power amplifier; an equivalent amplifier model estimator; N pre-distorters; and a coefficient extractor for extracting the coefficients of the N pre-distorters.

Digital pre-distortion device and method for a broadband power amplifier

Provided is a method, and an apparatus and communication system to perform the method, of detecting a victim terminal and performing an interference coordination in a multi-cell environment. The multi-cell environment may include a heterogeneous cell environment including a small cell and a macro cell. The method includes determining whether a macro terminal is located within a cell coverage of a small base station, and adjusting the cell coverage according to the determination.

Communication system of detecting victim terminal and performing interference coordination in multi-cell environments

A method for adaptively allocating resource can be simply implemented for reducing degradation of performance by effectively separating operations of sub-channel and time slot allocation and selection of modulation method and sequentially processing each of operations. A method for adaptively allocating resource in a communication system to sequentially process sub-carrier/time slot allocation and modulation method selection efficiently includes the step of a) computing average channel gains of sub-carriers/time slots for each user by using channel gains of sub-carriers/time slots for each user; b) computing average numbers of bits for each user by using required data rates and average channel gains of sub-carriers/time slots for each user; c) computing the number of sub-carriers/time slots allocated to each user and allocating the sub-carriers/time slots to each user; and d) selecting a modulation method with respect to each sub-carrier/time slot.

Method for adaptively allocating resources in communication system

A method of performing relay communication in a next generation cellular communication system is disclosed. The next generation cellular communication system includes a base station and a plurality of terminals, and a communication target terminal which has not acquired a Line-Of-Sight (LOS) channel with the base station performs communication through the relay of a relaying terminal which has acquired a LOS channel. The base station determines the relaying terminal. The relaying terminal forms a relaying terminal group by determining one or more relaying assistant terminals. The communication target terminal forms a transmitting/receiving terminal group by determining one or more transmitting/receiving assistant terminals. The base station performs communication with the relaying terminal through the relaying terminal, relaying assistant terminals of the relaying terminal group and the transmitting/receiving assistant terminals of the transmitting/receiving terminal group.

Relay communication method of next generation cellular communication system

Growing community of inventors

Daejeon, South Korea

Yong Hoon Lee