An electronic device according to an embodiment of the present invention is configured to wirelessly receive electric power from a wireless electric power transfer device. A power reception unit of the electronic device comprises: a core having a predetermined length and having magnetic flux concentration portions formed at lengthwise side portions thereof; and a coil wound along an outer periphery of the core to form magnetic flux density in the magnetic flux concentration portions, the magnetic flux density having a magnitude equal to or larger than a predetermined value.

An electronic wireless communication device is provided, comprising: a wireless communication means for communicating with a wireless communication initiating device; means for monitoring a communication signal received by the wireless communication means; means for sending at least a first characteristic value relating to the communication signal received by the wireless communication means to at least one other electronic wireless communication device; means for receiving at least a further characteristic value relating to a communication signal received by the at least to one other electronic wireless communication device; and processing means for carrying out a comparison based on the first characteristic value and the further characteristic value, wherein the electronic wireless device is configured to selectively activate communication with the wireless communication initiating device based on the result of the comparison. A system and method is also provided for communicating between an electronic wireless communication device of a plurality of electronic wireless communication devices and a wireless communication initiating device that can read one of the electronic wireless communication devices.

A device includes a first circuit that includes a near-field emission circuit, a second circuit, and a hardware connection linking the first circuit to the second circuit. The hardware connection is dedicated to a priority management between the first circuit and the second circuit. In addition, priority management information can be communicated between a near-field emission circuit and a second circuit. The communicating occurs between a dedicated hardware connection connecting the near-field emission circuit to the second circuit.

Certain aspects of the present disclosure are generally directed to apparatus and techniques for protecting electronic devices that may be prone to damage by wireless charging fields. For example, the apparatus may include a wireless charging circuit configured to selectively generate a wireless charging field and an impedance detection circuit coupled to the wireless charging circuit and configured to detect an impedance change corresponding to the wireless charging field. In this case, a proximity detection circuit may selectively detect proximity of one or more electronic devices that are prone to damage by the wireless charging circuit. In some aspects, detecting the proximity of the one or more electronic devices is activated based on detecting the impedance change, and wherein generating the wireless charging field comprises reducing a transmit power of the wireless charging field based on detecting the impedance change.

A method of communicating between a first electronic communication device of a plurality of electronic communication devices and a wireless communication initiating device for reading the first electronic communication device. The method comprises receiving, at the first electronic communication device, a communication signal from the wireless communication initiating device and determining a first characteristic value relating to the communication signal. The method further comprises receiving at least a second characteristic value relating to a communication signal received by at least a second electronic communication device that is connected to the first electronic communication device and initiating communication with a reading device based on the first and second value.

A switch pack for a vehicle and systems comprising the same. One system includes the switch pack and a control unit mechanically coupled to the vehicle. The control unit includes a first antenna coil electrically coupled to an electrical system of the vehicle. The first antenna coil receives a current from the electrical system and produces a magnetic field. The switch pack includes a second antenna coil, at least one user-actuated device, and a wireless transmitter electrically coupled to the second antenna coil. The second antenna coil is positioned within the magnetic field and receives an induced current from the magnetic field. The wireless transmitter receives the induced electrical current from the second antenna, uses the induced electrical current to determine a state of the at least one user-actuated device, and uses the induced electrical current to wirelessly transmit the state of the at least one user-actuated device.

A communication terminal includes a close-proximity communication coil, a power transmission coil, and a metal plate. The close-proximity communication coil is configured to be used in a close-proximity communication system. The power transmission coil is configured to be used in a contactless power transmission system. At least a portion of the metal plate is disposed between the close-proximity communication coil and the power transmission coil. The close-proximity communication coil and the power transmission coil are disposed in non-overlapping locations when viewed from a direction perpendicular or substantially perpendicular to a main surface of the metal plate. At least one of the close-proximity communication coil and the power transmission coil electromagnetically couples with the metal plate.

An electronic device of the present disclosure is provided. The electronic device includes a housing having a first plate facing a first direction, a second plate facing a second direction, and at least one side part, between the first plate and the second plate, facing a third direction, a first conductive pattern comprising a first coil having a first axis substantially extending in the first direction or the second direction, a second conductive pattern comprising a second coil having a second axis substantially extending in the third direction, and a communication circuit connected with the first conductive pattern and the second conductive pattern.

A near field communication (hereinafter, referred to as “NFC”) antenna matching network system connected to an NFC transceiver is provided. The NFC antenna matching network system includes a matching circuit connected to first and second antenna terminals and to the NFC transceiver; and a plurality of NFC antennas connected in parallel and physically with the first and second antenna terminals, wherein each of the NFC antennas comprises a source coil connected between the first antenna terminal and the second antenna terminal; and a resonance coil physically separated from the source coil.

Disclosed are a wireless power transfer apparatus and a method of controlling the same. The wireless power transfer apparatus in one example can include a power transmission circuit including a plurality of coils and configured to transfer power through the plurality of coils, and a controller, wherein the controller is configured to calculate a data value of a coil with respect to each of the plurality of coils, and determine a position of an object in a charge region corresponding to the plurality of coils in a charge region based on a comparison result obtained by comparing the data value calculated for each of the plurality of coils.