Samsung Electronics Co., Ltd.

Industry-University Cooperation Foundation Hanyang University

Kwan-Soo Lee

Seong-Taek Hwang

Yun-Je Oh

Jae-Hoon Lee

Yong-gyoo Kim

Seung-Pyo Hong

Chang-Sup Shim

Gyu-Woong Lee

Hanmin Jang

Dong Rip Kim

Je-Ik Kim

Heung Soo Lee

Youngjun Cho

Ho-Jin Eo

Ji-Seon Baek

Provided are a super water repellent polymer hierarchical structure, a heat exchanger having super water repellency, and a manufacturing method thereof A super water repellent polymer hierarchical structure can be simply and repeatedly manufactured by using only a method for utilizing a super water repellent hierarchical structure and mechanically molding a polymer material thereon. In addition, a heat exchanger having super water repellency can be provided by providing super water repellency on the fin surface of a heat exchanger by using a dip method and vacuum drying.

Super water repellent polymer hierarchical structure, heat exchanger having super water repellency, and manufacturing method therefor

A network system for interworking a Wireless Local Area Network (W-LAN) and a 3-Generation (3G) mobile communication network through a Radio-over-Fiber(RoF) link and an authentication method in interworking in the network system are provided. The network system includes a 3G mobile communication network and a W-LAN system. The 3G mobile communication network includes a voice signal processing network connected to a Public Switched Telephone Network (PSTN) for voice call processing with respect to a predetermined mobile terminal, a packet data network for data communication with the predetermined mobile terminal, and a terminal device for communication with the predetermined mobile terminal. The W-LAN system is connected to the packet data network of the 3G mobile communication network to provide a W-LAN service to the predetermined mobile communication terminal. The W-LAN system is implemented in a plurality of Base Transceiver Stations (BTSs) included in the 3G mobile communication network through the RoF link.

Network system for interworking W-LAN and 3G mobile communication network through RoF link and authentication method according to interworking in the network system

An optical transmitter for generating return-to-zero alternative-mark-inversion (RZ-AMI) optical signals and a method for generating the optical signals are provided. The optical transmitter includes a light source radiating at its output an intensity-modulated light beam based upon intensity of a first data, a precoder for precoding a second data having the information identical to the first data, and a Mach Zehnder modulator for phase-modulating the intensity-modulated light on basis of the precoded second data to generate a return-to-zero alternative-mark-inversion (RZ-AMI) optical signal.

Return-to-zero alternative-mark-inversion optical transmitter and method for generating return-to-zero alternative-mark-inversion optical signal using the same

A dual-port broadband light source with independently controllable output powers includes a broadband light source having a first gain medium pumped by an input pump light in order to output a first amplified spontaneous emission through both ends thereof. A second gain medium pumped by another input pump light in order to output a second amplified spontaneous emission through both ends thereof. A reflector disposed between the opposite ends of the first and second gain mediums to reflect the input first and second amplified spontaneous emissions. The first and second amplified spontaneous emissions output from the first and second gain mediums are then output to the outside through first and second output terminals.

Dual-port broadband light source with independently controllable output powers

Growing community of inventors

Seoul, South Korea

Kwan-Soo Lee