Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Ji-hoon Lee

Jhun-mo Son

Jae-Hoon Kim

Jung-ho Kim

Jai-kwang Shin

Sang-Yeol Kim

Jong-hyun Choi

Thenmozhi Arunan

Ho-suk Kang

Hyuk-Soon Choi

Jin-han Kim

Byung-hee Sohn

Jong-Ho Bang

Hyung-su Jeong

Won-Jae Joo

Hye-yeon Yang

Youngtae Kim

Byoung-Joon Lee

Yong-cheol Choi

Su-myeon Kim

Soo-Hyoung Lee

Ki-soo Chang

Hong-jung Kim

Mun-hyun Do

Nam-young Lee

Gyeong-don Kim

In-cheol Hwang

Soo-hyoung Lee

Young-ju Ryu

Minsu Kim

Dong-bum Lee

Jae-jin Cho

Taikyeong Park

Seung-Woo Lyu

Daniel Ryou

Jungyi Yu

Ie Su Cho

Juseok Park

Min-kwon Cho

An electrode assembly includes: a first electrode including a first electrode coated region and a first electrode uncoated region at one side of the first electrode coated region; a separator overlapping the first electrode; a second electrode including a second electrode coated region and a second electrode uncoated region at one side of the second electrode coated region; and a foreign particle preventing member on at least one of the first electrode uncoated region and the second electrode uncoated region. The second electrode coated region overlaps the first electrode coated region with the separator therebetween, and the foreign particle preventing member is repeatedly wound about an axis together with the first electrode, the separator, and the second electrode.

Electrode assembly and rechargeable battery including the same

A motor is provided. The motor includes: a rotor; a stator inside which the rotor is rotatably disposed and including a plurality of teeth protruding toward the rotor; a plurality of insulating films disposed in respective slots formed between the plurality of teeth to insulate a coil wound around the plurality of teeth from the respective teeth; and insulating members covering upper and lower portions of the stator, respectively, wherein the plurality of insulating films are fixed by the plurality of teeth and the insulating members.

Motor

A cross-linkable polymer including 1,1'-binaphthyl repeating units linked through 6,6&#x2032;-arylene groups, a cross-linked material comprising the cross-linkable polymer, an organic light emitting device including the cross-linked material, and a method of preparing the organic light emitting device are each disclosed.

Cross-linkable polymer, cross-linked material of the cross-linkable polymer, organic light emitting device comprising the cross-linked material and method of preparing the organic light emitting device

A transistor includes a device portion and a collector layer. The device portion is in a first side of a semiconductor substrate, and includes a gate and an emitter. The collector layer is on a second side of the semiconductor substrate, which is opposite to the first side. The collector layer is an impurity-doped epitaxial layer and has a doping profile with a non-normal distribution.

Transistors and methods of manufacturing the same

Disclosed is a mobile network system based on ad hoc on-demand distance vector (AODV) routing algorithm, including: a destination node: a source node for transmitting a data packet to the destination node by following a communication path; and a mobile node for receiving the data packet from a plurality of intermediate nodes located on the communication path, checking hop count numbers for the plurality of intermediate nodes, and establishing a communication path with a first node having a least number of hops and a second node having a most number of hops. Therefore, an optimum changeable communication path is searched in consideration of mobility of the mobile node. In result, communication speed is increased and the lifespan of the network is extended.

Mobile network system for dynamically controlling communication path and method thereof

A method and apparatus for handover based on a dynamic beamforming scheme, which is adapted to a mobile communication system including a mobile node and a base station, is provided. The apparatus includes a mobile profile information processor configured to process mobile profile information based on a location of the mobile node, and to generate a beamforming control signal according to the mobile profile information; a handover indication message processor configured to generate a first handover indication message incorporating the mobile profile information in preparation for a handover of the mobile node; a transceiver configured to transmit the first handover indication message; and a beamforming controller configured to control beamforming for transmission of the transceiver according to the beamforming control signal.

Method and apparatus for handover based on dynamic beamforming scheme

A server, terminal, and method for supporting mobility in a network are provided. A server includes a storage which stores a double chord lookup table including server search information based on identifiers and location information of terminals on a network, a controller which finds a server for providing an optimal routing path between a receiving terminal and a transmitting terminal for sending a packet to the receiving terminal, using the double chord lookup table, where a trigger including an identifier and location information for identifying the receiving terminal is received from the receiving terminal, and a communicator which reports the location of the found server to the receiving terminal and the transmitting terminal.

Server, terminal, and method for supporting mobility

A communication system capable of improving a TCP transmission efficiency includes a transmitter for transmitting data packets; a receiver connected to the transmitter, and for receiving the data packets and transmitting to the transmitter response signals with respect to the received data packets; and a multiplexer for multiplexing and transmitting to the transmitter the response signals transmitted from the receiver, and transmitting the transmitted data packets from the transmitter to a corresponding receiver, the multiplexer provided with a queue status monitor for monitoring queue statuses of the transmitted data packets and/or response signals, and a congestion control adjuster instructing the receiver to hold or compress the response signals based on the monitored queue status. Accordingly, the communication system can carry out efficient TCP congestion control by reducing a load of the TCP congestion control of the transmitters and receivers.

Communication system and method capable of improving data transmission efficiency of TCP in asymmetric network environments

A communication system having a source node, at least one mobile node, and a router that transmits data packets transmitted from the source node to a corresponding one of the at least one mobile node and multiplexes response signals to the data packets received from the corresponding one of the at least one mobile node to transmit the multiplexed response signals to the source node. The communication system includes: a link monitoring unit which calculates a capacity of a wireless link between the router and the corresponding one of the at least one mobile node; and a congestion control and adjustment unit which adjusts window field values in the response signals according to the calculated capacity. The router transmits the response signals, the response signals including the adjusted window field values to the source node, and the source node sequentially transmits the data packets on the basis of the adjusted window field values.

Communication system for improving data transmission efficiency of TCP in a wireless network environment and a method thereof

A method and a system for using the method are provided. The method and system allow a low power device having an asymmetric link to access a wireless network to exchange beacons with any one of a plurality of normal power devices in the wireless network. The method includes the steps of confirming whether the low power device has the asymmetric link with the normal power device, when the low power device receives a beacon of the low power device based on the received beacon; negotiating with at least one relay device so that the low power device requests a relay with respect to the asymmetric link, when the low power device has an asymmetric link with the normal power device; and at least one relay device noting a result of the negotiation to the low power device and a normal power device with which the low power device is intending to communicate, based on the result of the negotiation.

Method of beacon exchange between devices with asymmetric links and system using the method

A biphenyl derivative having an amino group with or without alkoxy substituent in the biphenyl backbone, and an organic electroluminescent device using the same.

Biphenyl derivatives and organic electroluminescent device employing the same

A blue electroluminescent compound and an organic electroluminescent device using the blue electroluminescent compound, which includes a 9,10-diphenyl anthracene unit in its backbone and has alkoxy groups and substituted or unsubstituted amino group introduced to the 2 and 5 positions on the phenyl group in the diphenyl anthracene unit.

Diphenyl anthracene derivatives and organic electroluminescent device employing the same

An optical fiber having a multi-step core structure, and a method of fabricating the same, are provided. The optical fiber includes a central core having a predetermined radius a,from an central axis and a refractive index n,, a first outer core having a radius a,and a refractive index n,smaller than the refractive index n,and surrounding the central core, a second outer core having a radius a,and a refractive index n,smaller than the refractive index n,and surrounding the first outer core, and a cladding having a radius a,and a refractive index n,smaller than the refractive index n,and surrounding the second outer core, i.e., a,<a,<a,<a,and n,>n,>n,>n,The diameter of the core is increased by making the refractive index distribution of the core multi-stepped, thus providing easy fabrication. The optical fiber has a low dispersion value in a 1550 nm wavelength, thus making superspeed long distance transmission possible.

Single mode optical fiber having multi-step core structure and method of fabricating the same

Growing community of inventors

Yongin-si, South Korea

Ji-hoon Lee