Samsung Electronics Co., Ltd.

Seoul National University

Other

Hyundai Motor Company

Kia Motors Corporation

Seong-Cheol Kim

Won-sik Kang

Seong-Wook Lee

Byeong-Ho Lee

Jong-Ho Lee

Dae-Hyun Kim

Jae-Hak Chung

Seung-Hoon Nam

Sang-Wook Lee

Jong-Kon Bae

Chan-Soo Hwang

Chong-Min Lee

Young-Ho Ryu

Jae-hyuck Woo

Kyu-Young Chung

Chul Jun Choi

Sung Wook Lee

Jung-Yong Lee

Do-Young Kwak

Joo Hyun Park

Young-jun Yoon

Sung-jin Jang

Jae-Choong Han

Wanjei Cho

Heon-Kyo Sim

A method for predicting a structure of an indoor space using radio propagation channel analysis through deep-learning is disclosed. Channel data of radio signals are collected for various indoor spaces, and radio channel parameter data such as PDP, AoA, and AoD are extracted therefrom. A large amount of propagation channel parameter data is input to an artificial neural network together with vertex coordinate data of the corresponding indoor space and deep-learning is performed in advance. The propagation channel parameter data are extracted from the indoor space to be predicted, the best matching indoor space is detected based on the trained artificial neural network. The best matching indoor space is predicted as the structure of the indoor space.

Method for predicting structure of indoor space using radio propagation channel analysis through deep learning

A method and an apparatus for estimating direction of arrival of radar reception signal using antenna array extrapolation. Obtained is a transformation matrix representing a relationship between phases of reception signals received through ito (N−2+i)antennas and a phase of a reception signal received through (N−1+i)antenna in a ULA antenna unit including N actual antennas. A phase of a virtual reception signal received through a new (N+i)virtual antenna is generated by multiplying values corresponding to phases of the reception signals received through (i+1)to (N−1+i)antennas by the transformation matrix. A magnitude of the virtual reception signal received through the (N+i)virtual antenna is obtained by averaging magnitudes of the reception signals received through ito (N−1+i)antennas.

Method and apparatus for estimating direction of arrival of radar reception signal using antenna array extrapolation

An allophone inspection device and inspection method thereof are provided. An allophone inspection device includes an array microphone unit in which a plurality of array microphones are disposed at predetermined intervals, and a controller configured to build reference data by quantifying analyzed allophone by collecting sound signals generated from surrounding based on a position where the array microphone unit is installed in advance and measure a surrounding sound signal through the array microphone unit to estimate whether or not noise is generated and a position of the sound source where the noise is generated based on the reference data.

Allophone inspection device and inspection method thereof

A wireless power transmitter configured to wirelessly transmit power to an electronic device is provided. The wireless power transmitter includes a power transmission antenna including a plurality of patch antennas for wirelessly transmitting power, a sensor, and a processor, wherein the processor may be configured to create a first clutter map representing a reflection characteristic of an object positioned around the wireless power transmitter based on, at least, first data obtained by the sensor during a first period, store the first clutter map, compare a difference between the first clutter map and second data obtained by the sensor during a second period with data contained in the first clutter map, create a second clutter map corresponding to the second period based on a result of the comparison, determine a position of an organism using the second data and the second clutter map, and control the power transmission antenna such that a magnitude of the RF wave is less than a predetermined value based on the position of the organism.

Wireless power transmitter and method for controlling the same

A display driver integrated circuit (IC) that stores an output mode of driving circuit control signal in a non-volatile memory and a method of outputting the driving circuit control signal, wherein the display drive IC fixes the driving circuit control signal values using fixation wire disposed on top layers of the display driver IC, and a method of manufacturing the display driver IC. The display driver IC includes a plurality of driving circuits, which operate a display panel; a driving circuit control signal output unit, which outputs a plurality of driving circuit control signal values, which control the driving circuits, received from an external device in a test mode, or outputs the plurality of driving circuit control signal values, which control the driving circuits that are internally set to a plurality of fixed values in a production mode; and a non-volatile memory, which stores a mode selection value indicating the test mode or the production mode, wherein the driving circuit control signal output unit operates in the test mode or the production mode in response to the mode selection value stored in the non-volatile memory. In the display drive IC, which stores an output mode of a driving circuit control signal in a non-volatile memory, and a method of outputting the driving circuit control signal, whether to fix a driving circuit control signal value or not can be changed after the display driver IC is assembled into a module.

Display driver integrated circuit which stores output mode of driving circuit control signal in non-volatile memory and method of outputting the driving circuit control signal

A data error correction circuit includes a plurality of one-bit registers, a data error detection unit and a data error correction unit. The data error detection unit detects whether all the data values stored in the plurality of the registers are equal. The data correction unit determines a correct data value based upon each of the stored data values, and corrects each of the data values into the determined correct data value if the data values are not equal. Therefore, the data error correction circuit may correct a data error due to electrostatic discharge (ESD) or electromagnetic interference (EMI).

Data error correction circuit, integrated circuit for data error correction, and method of performing data error correction

Provided is a liquid crystal display panel having gate drivers. The LCD panel includes a gate line shift circuit setting a gate line scanning order such that the gate lines are sequentially scanned in units of n gate lines with k&#x2212;1 gate lines between each pair of adjacent gate lines in each unit according to an interleaving method in response to a gate line-on signal received from a timing control unit outside the LCD panel, wherein the LCD panel reproduces source data output from a source driver outside the LCD panel in the gate line scanning order set by the gate line shift circuit. The LCD panel inverts the polarity of a common voltage for every unit of n gate lines, instead of every gate line, thereby reducing power consumption. In addition, since every kgate line is scanned according to the interleaving method, deterioration of image quality such as a flickering phenomenon can be prevented, which is an advantage of a line inversion driving method.

LCD panel including gate drivers

A apparatus and method for estimating a sequence of transmitted quadrature amplitude modulation (QAM)-modulated signals and space-time block coded signals using an optimal expectation-maximization (EM)-based iterative estimation algorithm in a multiple-input and multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) mobile communication system. An initial sequence estimation value is produced on the basis of a predetermined initial value using a pilot sub-carrier contained in each of OFDM signals received by a receiving side. A normalized value of a received signal on a channel-by-channel basis is produced by a predetermined equation using orthogonality between the OFDM signals received by the receiving side. At least one subsequent sequence estimation value is produced using the initial sequence estimation value and the normalized value of the received signal on the channel-by-channel basis. If the subsequent sequence estimation value converges to a constant value after an operation of producing the subsequent sequence estimation value is iterated the predetermined number of times, the converged subsequent sequence estimation value is designated as a final sequence estimation value.

Method and apparatus for estimating a signal sequence in a MIMO-OFDM mobile communication system

A diaphragm pump having a simple structure for effectively preventing pulsation of liquid being discharged, which includes an air chamber connected to a head-side discharge hole of the diaphragm pump and having a discharge-side discharge hole, and thereby pipes are kept from being damaged by preventing the pulsation of the liquid, and the level of noisy can be reduced to a very adequate level.

Diaphragm pump

Growing community of inventors

Seoul, South Korea

Seong-Cheol Kim