Electronics and Telecommunications Research Institute

Samsung Electro-mechanics Co., Ltd.

Samsung Sdi Co., Inc.

Tae Joon Park

Cheol Sig Pyo

Seung Mo Lim

Chang Sub Shin

Dong Joon Oh

Hoyong Kang

Wun Cheol Jeong

In Hwan Lee

Wun-Cheol Jeong

Sung Min Cho

Se Han Kim

Ho Phil Jung

Kye Seon Lee

Kyo Yeol Lee

Sang Wook Lee

Hyun Ho Shin

Jong Suk Chae

Hai Joon Lee

Sang Kee Yoon

Byeong Cheol Choi

In Young Kang

Seong Soon Joo

Ho Yong Kang

Sung Wook Kim

Yun Hee Kim

Eun Hee Kim

Chang Soo Jang

Byeong Cheol Moon

Yong Sun Kim

Youn Suk Kim

Ki Joong Kim

Jang Yeol Lee

Jae Sun Cha

Won Jae Han

Dong Yoon Shin

Jun Goo Won

Yun Sung Kang

Kang Bok Lee

Nae-Soo Kim

Young Sub Jin

Jong Pil Lee

Jin Kyu Kim

Yeong Gyu Lee

Seung Hun Han

Heung Woo Park

Jeong Suong Yang

Young Jean Song

Geon Min Yeo

Je Hong Kyoung

Jeong Hoon Ryou

Jong Hyun Park

Sang Yeoun Lee

Hye Min Bang

Eun Su Park

Jung Hoon Oh

Jae Yong Lee

Hoe Sung Yang

Kyoung Ah Oh

Sang Kyun Im

Woong Do Jung

Hyo Chan Bang

Sang Gi Hong

So Young Kwon

Eun Hwan Jeong

Ri Ra Jung

Dong Beom Shin

Hyun Kee Lee

Mun Bo Ko

Jae Sang Lee

Kyo Hoon Son

Myung Nam Bae

Ki Yon Lee

Juderk Park

Jun Ho Chung

Myung Eun Kim

Jin Chul Choi

Sun Jin Kim

Joon Sung Kim

Su Yeon Lee

Eun-Hee Kim

Na Young Kim

Hye Sun Lee

Jong Suk Han

Shin Hyo Bae

Jin Kyu Park

Cheong Moon Lee

In Sik Jeon

Hyung Jae Park

Jin Joo Kim

Byung Chul Kim

In Hawn Lee

Keun Hyung Lee

Su Yeong Son

Mok Yun Jin

Kyohoon Son

Nguyen Trung Kien

Wu Cheol Jeong

An operation method of an access point (AP) and a terminal, in a wireless time sensitive network (WTSN), may comprise: receiving, by an AP, an uplink frame from a first terminal; generating compensation indication information for compensation to be performed in the first terminal according to channel information between the first terminal and the AP estimated based on the uplink frame; transmitting the compensation indication information to the first terminal through a downlink frame; and performing, by the first terminal, the compensation based on the compensation indication message transmitted through the downlink frame.

Frame structure and terminal synchronization method and apparatus in wireless communication system

Disclosed herein is a high thermal resistant polyolefin-based separator including a coating layer containing polyamic acid. Specifically, the separator includes a polyolefin-based substrate film, and a coating layer containing polyamic acid formed on one or both surfaces of the polyolefin-based substrate film, wherein the polyamic acid contains one or more functional groups selected from the group consisting of a sulfone group, a trifluoromethyl group, an alkyl group, and a phenyl ether group. Also, disclosed herein is an electrochemical battery having improved thermal stability by using the separator including a coating layer containing polyamic acid.

Separation membrane comprising coating layer, method of preparing same, and battery using same

A multilayer ceramic capacitor includes a body having a dielectric layer and internal electrodes disposed to be alternately exposed to the third and fourth surfaces with the dielectric layer interposed therebetween. External electrodes include connection parts respectively formed on opposing surfaces of the body, band parts formed to extend from the connection parts to portions of side surfaces of the body, and corner parts in which the connection parts and the band parts are contiguous. A thickness of each of the external electrodes may be 50 nm to 2 &#x3bc;m. The external electrodes may be formed using a barrel-type sputtering method. A ratio t2/t1 may satisfy 0.7 to 1.2, where t1 is a thickness of each connection part and t2 is a thickness of each band part. A ratio t3/t1 may satisfy 0.7 to 1.0, where t3 is a thickness of each corner part.

Multilayer ceramic capacitor

A multilayer capacitor includes a body including a stack structure in which a plurality of dielectric layers are stacked and a plurality of internal electrodes are stacked with the dielectric layers interposed therebetween, external electrodes formed on an external surface of the body to be connected to the internal electrodes, and including a first electrode layer covering a first surface of the body to which the internal electrodes are exposed, and a second electrode layer covering the first electrode layer, a first metal oxide layer disposed between the first and second electrode layers and having a discontinuous region, and a second metal oxide layer covering at least a portion of a surface of the body on which the external electrodes are not disposed and having a multilayer structure.

Multilayer capacitor

Method of manufacturing a multilayer ceramic capacitor

Disclosed are methods and apparatuses for relaying messages in LPWAN. An operation method of a terminal may comprise transmitting a first join request message to a base station without IQ inversion; when a number of failed transmissions of the first join request message is greater than or equal to a preconfigured threshold, transmitting an IQ-inverted second join request message to a relay; and receiving a join response message from the relay that is a response to the second join request message. Accordingly, the performance of the communication system can be improved.

Method for relaying messages in low power wide area network and apparatus therefor

A capacitor component includes: a semiconductor substrate including first and second portions, a trench penetrating through the substrate from one surface of the substrate to the other surface of the substrate to separate the first and second portions of the substrate from each other, a dielectric layer disposed in the trench and on the one surface of the substrate; a first pad electrode and a second pad electrode spaced apart from each other, and penetrating through the dielectric layer to be in contact with the first and second portions of the substrate, respectively, and a passivation layer disposed on the dielectric layer, covering portions of the first pad electrode and the second pad electrode, and exposing at least a portion of each of the first pad electrode and the second pad electrode.

Capacitor component

Provided are a polarizing plate for a light emitting display device and the light emitting display device including same, the polarizing plate for a light emitting display device having a first adhesive film, a second protective layer, a polarizer, and a first protective layer sequentially laminated therein. The polarizing plate includes a UV absorber; and an as value of the polarizing plate is about &#x2212;2.0 to about &#x2212;20.0, and a bs value of the polarizing plate is about 3.0 to about 30.0.

Polarizing plate for light emitting display device and light emitting display device including same

A capacitor component includes a porous body, a first electrode layer covering surfaces of pores of the porous body, a dielectric layer covering the first electrode layer, and a second electrode layer filling the pores of the porous body and covering the dielectric layer.

A method of controlling a wireless communication network, performed by a server, includes determining neighbor base stations adjacent to a target base station based on a connection relationship between a plurality of base stations; setting at least two reference base stations based on hop distances between the neighbor base stations; grouping terminals connected to the target base station into at least two groups based on information of the at least two reference base stations, and allocating a different time resource to each of the at least two groups.

Method for controlling wireless communication network and server therefor

An aerogel capacitor includes: a substrate including a capacitor structure including an aerogel, a dielectric layer and a conductive layer, and a support surrounding the capacitor structure; and an electrode unit including a first electrode and a second electrode provided on the substrate. The first electrode is connected to the aerogel and the second electrode is connected to the conductive layer.

Aerogel capacitor and method for manufacturing the same

A mobile ad-hoc routing apparatus includes a first communication module and a second communication module configured to transmit and receive data through a first communication band and a second communication band, respectively, a memory configured to store a program for transmitting and receiving the data, and a processor configured to execute the program stored in the memory, wherein when the program is executed, the processor receives first control information broadcast by one or more neighboring nodes via the first communication module and stores the first control information in the memory, wherein the first control information includes current position and communication status information of the neighboring node, the processor updates information on the neighboring node on the basis of the first control information, generates packet forwarding information which includes information on a node which currently allows packet data to be transmitted based on the updated information on the neighboring node, and stores the generated packet forwarding information in the memory, and the processor determines a subsequent node which allows the packet data to be transmitted to a destination node on the basis of the packet forwarding information and transmits the packet data to the subsequent node via the second communication module.

Mobile ad-hoc routing apparatus and method

A piezoelectric oscillator, and method of making the same, includes an oscillation substrate comprising an oscillating part and a surrounding part, wherein the surrounding part is thinner than the oscillating part, and oscillating electrodes disposed on an upper surface and a lower surface of the oscillating part. The oscillation substrate is configured according to H=400.59&#xd7;S+1.75&#xb1;1.5, wherein H=100&#xd7;(T/T) and S=T/(L&#x2212;L), wherein Lrepresents an entire length of the oscillation substrate, Lrepresents a length of the oscillating part, Trepresents a thickness of the oscillating part, and Trepresents a step height between the oscillating part and the surrounding part.

Piezoelectric oscillator and method of making the same

An operation method of a server in a communication network includes receiving a connection request message from each of a plurality of gateways connected to the server; identifying a service level of a terminal that has transmitted the connection request message based on information included in the connection request message; selecting a first gateway corresponding to the service level among the plurality of gateways as a gateway to which the terminal is to be connected; and transmitting a connection approval message, which is a response to the connection request message, to the terminal through the first gateway.

Access control method and apparatus based on service level

Growing community of inventors

Daejeon, South Korea

Tae Joon Park