Abstract: The present invention relates to a transformer and a circuit board comprising same. One embodiment of the transformer according to the present invention comprises: a core part comprising a core lower portion and a core upper portion disposed on the core lower portion; and a coil part which comprises a first coil and a second coil and of which at least a portion is disposed in the core part, wherein the core lower portion has a closed region which overlaps the core upper portion in a first direction from the core lower portion toward the core upper portion, and an open region which extends from the closed region in a second direction perpendicular to the first direction and which is exposed to the outside of the closed area.

Abstract: A transformer, according to one embodiment, includes a core unit, a first coil unit and a second coil unit, and a terminal bobbin coupled to one side of the second coil unit in a first direction, wherein the first coil unit includes a first coil and a first bobbin, wherein the second coil unit includes a second coil and a second bobbin, wherein the terminal bobbin includes a plurality of first terminals disposed on one side of the terminal bobbin that is oriented in the first direction, and an opening formed in another side opposite the one side in the first direction to allow one side of the second coil unit to be inserted thereinto, and wherein two end portions of the first coil are led out from the first bobbin and are respectively connected to different first terminals among the plurality of first terminals of the terminal bobbin.

Abstract: A magnetic element according to an embodiment of the present invention a first core, a second core, a bobbin including a through-hole, the bobbin being at least partially disposed between the first core and the second core, a first coil unit and a second coil unit at least partially disposed on the bobbin, wherein at least one of the first coil unit or the second coil unit includes a plurality of conductive wires disposed around the through-hole, wherein the bobbin includes a first portion formed to allow the first end portion and the second end portion of each of the plurality of conductive wires to be disposed thereon and a second portion formed opposite the first portion in a horizontal direction, with the through-hole interposed therebetween, and wherein portions of the plurality of conductive wires overlap each other vertically on the second portion.

Abstract: A magnetic sheet according to an embodiment comprises: a first magnetic sheet portion comprising a first surface; a second magnetic sheet portion comprising a second surface that faces the first surface; and an attachment portion arranged between the first surface and the second surface, wherein the attachment portion may comprise a plurality of magnetic particles and a coating layer that is coated with the plurality of magnetic particles and comprises an organic material.

Abstract: Embodiments of the invention provide an ESL system using a smart phone and an operating method thereof. In accordance with at least one embodiment, the operating method of an ESL system using a smart phone includes listing purchase target product items and transmitting a product purchase item list through a smart phone of a user, and receiving the product purchase item list through a gateway, searching products of purchase items, and transmitting position information of each product to the smart phone, by an ESL server. The method further includes calculating an optimal path from a current position of the smart phone to a position of each product based on the position information of each product by the smart phone, and transmitting final position information of a corresponding product to the smart phone by the ESL server, when the smart phone approaches the corresponding product of a purchase target depending on a movement of the user based on the optimal path.

Abstract: An adaptive dual band Multiple-Input Multiple-Output (MIMO) wireless-fidelity (Wi-Fi) apparatus may include an application processor, an interface unit transmitting data and a control signal from the application processor, a first dual band wireless communications unit performing wireless communications using at least one of a first band and a second band; a second dual band wireless communications unit performing wireless communications using at least one of the first band and the second band upon being operated, a first selecting unit providing a first path between the first dual band wireless communications unit and a first antenna and providing a second path between the second dual band wireless communications unit and the first antenna, and a second selecting unit providing a first path between the second dual band wireless communications unit and the second antenna and providing a second path between the first dual band wireless communications unit and the second antenna.

Abstract: There is provided a wireless communications apparatus including a plurality of antennas transmitting data to and receiving data from a plurality of terminals; a reception unit connected to the plurality of antennas and receiving quality of service (QoS) type information and channel information with respect to the plurality of antennas from at least one of the plurality of terminals; a calculation unit calculating a signal-to-interference and noise ratio (SINR) value by using the channel information; an antenna distribution unit allocating an antenna to the at least one terminal by using the QoS type information and the SINR value; and a frequency allocation unit selectively allocating one of a plurality of pre-set frequency bandwidths to the antenna-allocated terminal by using at least one of the QoS type information and the channel information.

Abstract: Embodiments of the invention provide an ESL system using a smart phone and an operating method thereof. In accordance with at least one embodiment, the operating method of an ESL system using a smart phone includes listing purchase target product items and transmitting a product purchase item list through a smart phone of a user, and receiving the product purchase item list through a gateway, searching products of purchase items, and transmitting position information of each product to the smart phone, by an ESL server. The method further includes calculating an optimal path from a current position of the smart phone to a position of each product based on the position information of each product by the smart phone, and transmitting final position information of a corresponding product to the smart phone by the ESL server, when the smart phone approaches the corresponding product of a purchase target depending on a movement of the user based on the optimal path.