One example discloses a near-field converter, including: a near-field magnetic antenna responsive to near-field magnetic signals; a near-field electric antenna responsive to near-field electric signals; wherein the converter is configured to, convert received near-field magnetic signals into and transmit as near-field electric signals; or convert received near-field electric signals into and transmit as near-field magnetic signals.

A method of a charging apparatus for controlling wireless charging is provided. The method includes detecting an electronic device, determining a charging method corresponding to the detected electronic device, and wirelessly charging the electronic device by selecting a coil corresponding to the determined charging method.

Provided is a wireless power transfer antenna core. In the wireless power transfer antenna core according to an exemplary embodiment of the present invention, a conductive member configured to serve as an antenna for transmitting or receiving wireless power is wound multiple times along a longitudinal direction. The wireless power transfer antenna core is made of a magnetic body and comprises: a first portion having a first cross-sectional area; and a second portion extending with a predetermined length from an end of the first portion and second cross-sectional area that is relatively larger than the first cross-sectional area, wherein the conductive member is wound multiple times on the first portion.

A magnetic resonance (MR) system, including at least one wireless radio-frequency (RF) coil comprising antennas for receiving induced MR signals and an antenna array comprising transmission and reception antennas; a base transmitter system (BTS) having an antenna array comprising a plurality of transmission and reception antennas configured to communicate with the RF coil using a selected spatial diversity (SD) method; and at least one controller to control the BTS and the RF coil to determine a number of transmission and/or reception antennas available, couple the transmission and reception antennas to form corresponding antenna pairings, and determine signal characteristic information (SCI) of the antenna pairings, select an SD transmission method based upon the determined number of antennas and the determined SCI for communication between the BTS and the RF coil, and establish a communication channel between the BTS and the RF coil in accordance with the selected SD transmission method.

An electronic device is provided. The electronic device includes a housing and a first coil disposed in the housing and wound around a space formed inside. The housing includes a front cover and a rear cover. The rear cover includes a hole located in a first region of the rear cover that corresponds to the space of the first coil, a first slit that extends from an edge of the rear cover to the hole, and a second slit spaced apart from the first slit and extending from the edge. One end of the second slit is located in a second region of the rear cover that corresponds to the first coil. In addition, various other embodiments recognized through the present specification are possible.

Systems, methods, and computer-readable media are disclosed for ring-shaped devices with combined Bluetooth and NFC antenna assemblies. In one embodiment, an example device may include an inner shell, an outer shell coupled to the inner shell, where the outer shell and inner shell together form a first side portion, a second side portion, and a lower portion of the ring-shaped device, a battery, and an antenna assembly that forms an upper portion of the ring-shaped device. The antenna assembly may include a metal substrate, a ferrite layer disposed on the metal substrate, and a metallic loop structure disposed on the ferrite layer.

A container arrangement (100) is disclosed, which is preferably destined for pharmaceutical products. The container arrangement includes a container body (110) and a first wireless communication systems (210) composed of a NFC system (210) including an NFC antenna (141). The container arrangement further includes a first and/or a second sensing-switching arrangement (143; 280) configured to include a preset status inhibiting a standardized operability of the first wireless communication system (210). The first sensing-switching arrangement (143) is configured to deregulate its preset status upon an initial opening event and the second sensing-switching arrangement (280) is configured to deregulate its preset status upon an unloading event.

According to one embodiment of the present specification, an NFC device can comprise: a loop antenna disposed on a first surface of a substrate and transmitting and receiving a wireless signal, wherein an antenna area defined by the outer perimeter or the inner perimeter of the loop antenna is positioned within a first area on the first surface; at least one input interface disposed on the first surface of the substrate, wherein the input interface is positioned within a second area on the first surface, and the first area and the second area are different from each other; and a processor connected to the loop antenna and the input interface. when a user input for the input interface is detected in a communication mode in which the processor can communicate with the external NFC device, the processor can transmit, to an external NFC device through the loop antenna, an RF response signal including control information for executing a function corresponding to the input interface.

A non-contact power receiving device is described which receives power from a non-contact power transmission device that transmits power using a power transmission coil, includes a power receiving coil, a power receiving circuit, and a power receiving control circuit. The power receiving coil is electromagnetically coupled to the power transmission coil. The power receiving circuit rectifies power that is generated in the power receiving coil. The power receiving control circuit temporarily increases a load that is connected to the power receiving circuit.

In an embodiment, a method for wirelessly transferring power through a low-e window includes: causing a first current to flow through a transmitter coil disposed in a first outer surface of the low-e window, the first current having a first frequency; inducing, with the first current, a second current to flow through a receiver coil disposed in a second outer surface of the low-e window, the low-e window having a metal or metal oxide layer having a first thickness; generating a voltage based on the second current; and powering an electronic device coupled to the receiver coil with the generated voltage, where the first frequency is associated with a first skin depth of the metal or metal oxide layer, and where the first skin depth is larger than the first thickness.