Samsung Electronics Co., Ltd.

Yonsei University

Kt Corporation

Young Joong Yoon

Young-Eil Kim

Dae-hyun Ban

Ick-jae Yoon

Sung-won Han

Young-hwan Kim

SeongSoo Lee

Hyungrak Kim

Yongjin Kim

Soon Ik Jeon

Soon Young Eom

Hong-uk Woo

Jung-kyuen Lee

Young Bae Jung

Sang-ho Shin

Cheol Woo Kim

Dong-hyeok An

Eun-ho Heo

Yohan Lim

Kihun Chang

Gwang Ju Seo

Kyoo Tae Ryoo

Ji Hwan Yoon

Jang Hwan Bae

Jong Oun Jang

Jihwan Ahn

The present embodiments provide a dual band antenna which divides a feed signal into two levels by a feed layer in which two layers are stacked and disposes an antenna slot in an antenna layer connected to a feed layer in a dual mode to minimize a space for an antenna.

Dual band antenna

A terminal, a cloud apparatus, a method of analyzing, by a terminal, activities of a user, and a method of analyzing, by a cloud apparatus, activities of a user. The terminal includes a communication interface that communicates with an external apparatus over a network; a controller that obtains data used to predict activities of a user and anonymize a portion of the obtained data, and transmit the anonymized data and a remaining portion of the data, which is not anonymized, to the external apparatus through the communication interface; and a display that displays notification information related to the activities of the user based on activity prediction data received from the external apparatus, the activity prediction data being generated based on an analysis of the transmitted data.

Terminal, cloud apparatus, driving method of terminal, method for processing cooperative data, computer readable recording medium

An image display device, a method for driving the same, and a computer readable recording medium are provided. The image display device includes a speech acquirer configured to acquire a speech query associated with a query created by a user, a display configured to display a query list composed of candidate queries having the same as or similar semantic as the acquired speech query, and an operation performer configured to perform an operation related to the query selected from the displayed query list.

Image display device, method for driving the same, and computer readable recording medium

An artificial magnetic conductor includes a conductor layer, a ground layer, and a via. The conductor layer is formed in a first direction and includes a plurality of grid cells. The ground layer is formed in a second direction that is opposite to the first direction and generates a lower frequency than that of an artificial magnetic conductor including a plurality of grid cells having the same size as that of the plurality of grid cells of the conductor layer and a conductor plate having a form that is not modified. The via is formed between the conductor layer and the ground layer to electrically connect the conductor layer and the ground layer.

Artificial magnetic conductor

An ultra wide band receiver system comprising a ultra wide band antenna and an active circuit. The ultra wide band antenna including a power feed operable to receive electromagnetic energy. The ultra wide band antenna further includes a radiator operable to be excited by the electromagnetic energy fed through the power feed to radiate an electromagnetic wave. The radiator has a metal layer. The active circuit includes a pair of parallel coupled lines arranged on a first side of the radiator. The pair of parallel coupled lines is operable to block DC current. The active circuit further includes at least one defected ground structure formed on a second side of the radiator. The defected ground structure is formed on an etched out part of the metal layer.

Receiver system for ultra wideband

An antenna having an extended operation frequency bandwidth that includes: a feed, and a plurality of radiators which are connected to the feed to receive current and divided at the feed. Accordingly, the RFID radio signals and the mobile communication radio signals can be transmitted and received via the single antenna because the frequency bandwidth is expanded. Therefore, the efficiency of the antenna can be improved and the mobile communication terminal can be miniaturized. Furthermore, since the antenna obtains the increased gain, the communication quality of the antenna can be enhanced and the power consumption can be reduced.

Antenna having extended operation frequency bandwidth

A DC block with a band-notch characteristic using a defected ground structure (DGS), includes a pair of coupled lines for being formed parallel to each other on one surface of a dielectric and blocking a flow of a DC, and at least one DGS for being formed on an area of the rear surface of the dielectric corresponding to each coupled line and comprising an etched region formed by etching a part of a ground surface bonded to the dielectric and a metal region formed in the etched region. Accordingly, the stop band of the desired bandwidth in the desired communications band can be formed and the size of the communications system can be reduced.

DC block with band-notch characteristic using DGS

The present invention relates to a satellite IP multicasting system and method for constructing an IP multicast network by a unit of internet node having a router for subscriber connection or a switch, and for transmitting a multicasting packet transmitted from a content provider into a local IP multicast network via a satellite. The satellite IP multicasting system features a backbone network, a content provider, a satellite network and a local network. The local network, which is interworked with the backbone network, is configured to multicasting protocol at a router or a switch, performs reverse path forwarding by static multicasting routing setup on a router or a switch connected to the satellite network via Ethernet and on a subscriber router or by IP designation of the same sub-net with source address of IP header of the multicast packet to an output port of a satellite data receiver and a port of a router connected to the satellite data receiver, and transmits the multicast packet into a terminal client.

Satellite IP multicasting system and method

Growing community of inventors

Seoul, South Korea

Young Joong Yoon