Samsung Electronics Co., Ltd.

Electronics and Telecommunications Research Institute

Seoul National University

Soongsil University

Kyung-Won Park

Yong-Soo Cho

Sang-Il Park

Do-Young Kim

Kyoung-Hoon Kim

Sung-Chul Kim

Jae-Young Ahn

Je-Kook Kim

Young-woo Lee

Sung-Eun Lee

Jae-Hyun Ahn

Je-ik Kim

Kyung-Hi Chang

Hyo-Jin Lee

Yun-Hee Kim

Yu-Dong Bae

Jeong-Hun Seo

Dong-Rak Shin

Seung-Bae Lee

Kyoung-Won Kim

Joon-Yung Park

Kyu-Jin Lee

Kang-Jun Ko

Jung-Man Lim

Hyo-Jin Ahn

Jong-Ik Won

Geon-Hyoung An

Eun-Hwan Lee

In-Geol Lee

Jung-In Sohn

Se-Il Kim

Sang-Beom Han

A-Ra Ko

Min-Gi Kim

An electronic device and a method for sensing moisture in an electronic device are provided. The method for sensing moisture in an electronic device includes sensing moisture introduced into a connector of the electronic device in a state where one or more functions executable by connection of the connector with an external electronic device are activated. Further, the method includes deactivating the one or more functions based on the sensing; determining whether the introduced moisture is removed in a state where the one or more functions are deactivated; and activating the one or more functions if the moisture is removed.

Electronic device and method for sensing moisture in an electronic device

The present invention relates to a non-platinum catalyst for an oxygen reduction electrode, in which iron nanoparticles are dispersed in nitrogen-doped mesoporous carbon nanofibers, and the surfaces of the iron nanoparticles are at least partially exposed to the outside. In addition, the present invention relates to a method for producing a non-platinum catalyst for an oxygen reduction electrode using electrospinning and hydrogen activation reactions.

Catalyst for oxygen reduction electrode and method for manufacturing same

A user terminal device for controlling a volume of an external audio output device and a control method thereof are provided. The method of controlling the user terminal device for changing the volume of the external audio output device includes receiving an input corresponding to a user command for changing state information of the external audio output device, receiving the state information of the external audio output device from the external audio output device, and changing a state of a device, which is to be changed based on the user command, based on state information of the user terminal device and the state information of the external audio output device.

User terminal device and control method thereof

A display module includes a display panel, a driver integrated circuit, a flexible printed circuit (FPC), a drive signal wiring and a power wiring. The driver integrated circuit applies power and a drive signal to the display panel. The FPC is electrically connected between the driver integrated circuit and a PCB. The drive signal wiring is extended from the FPC to the display panel through the driver integrated circuit and may transmit the drive signal to the display panel. The power wiring transmits the power to the display panel. The power wiring includes a first power line extended from the FPC to the driver integrated circuit, and a second power line extended from the first power line to the display panel. The second power line does not intersect the drive signal wiring, and a ground slit is not generated.

Display module with dual power lines

Provided is a fuel cell including an anode electrode, a cathode electrode, and an electrolyte/ion exchange membrane between the anode electrode and the cathode electrode. The cathode electrode uses an iron redox couple as an oxidizer. The iron redox couple is regenerated by an oxidizing substance. The fuel cell does not need a noble metal catalyst, is thus economical in manufacturing costs, and has high power density, thereby improving energy conversion efficiency. Furthermore, the fuel cell is capable of decomposing an oxidizing substance, such as NO, Cl, Br, or O.

Fuel cell including cathode electrode using iron redox couple

Provided are a virtual multi-antenna method for an orthogonal frequency division multiplexing (OFDM) system and an OFDM-based cellular system. The virtual multi-antenna method includes grouping sub-carriers in a frequency domain of an OFDM symbol and generating at least one group including G sub-carriers; and regarding the G sub-carriers included in the at least one group as multiple channels used in a multi-antenna technique and virtually applying the multi-antenna technique to the transmission and reception of the OFDM symbol. The virtual multi-antenna method can effectively reduce an interference signal and obtain the effects of a spatial division multiple access (SDMA) technique without physically using multiple antennas.

Virtual multi-antenna method for OFDM system and OFDM-based cellular system

Disclosed is a transmitting and receiving method for reducing a time-varying channel distortion in an orthogonal frequency division multiplex (OFDM) system. In the present invention, the transmitter defines M sub-channels in one data group, mathematically analyzes a change of channel for each path causing a time-varying channel distortion in a high-speed mobile environment by approximation, calculates a weight value based on the mathematical analysis and assigns the calculated weight value to transmit data of each sub-channel. Subsequently, the receiver combines the signals of these M sub-channels and demodulates the combined signals. Accordingly, the present invention greatly reduces a distortion caused by the time-varying channel to improve a bit error rate and a channel estimation performance.

Transmitting and receiving method for reducing distortion caused by a time-varying channel in an orthogonal frequency division multiplex system

A voice mailing system and a service method for additionally processing fax mail while intactly maintaining the voice mail in order to save memory requirement and simplify the mail management structure. The voice mail system where a corresponding profile box is accessed by a profile number to perform a voice mail service, contains a memory having a plurality of data cells for storing fax data, transactions for storing index of the data cells, a storing date and time, a storing mail format, and page classifying information for each fax mail; and a plurality of mailboxes for storing index information of the fax mail.

Voice mailing system for performing fax mail service and service method

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Seoul, South Korea

Kyung-Won Park