A wireless power transmission apparatus is disclosed. The wireless power transmission apparatus comprises: a first plate having a first polarity, a second plate spaced apart from the first plate and having a second polarity different from the first polarity, at least one wireless power transmission module disposed between the first plate and the second plate and connected to one side of the first plate and one side of the second plate, and a processor configured to control the wireless power transmission module, wherein the processor is configured to move the wireless power transmission module to a location corresponding to one area between the first plate and the second plate based on a wireless power receipt apparatus being identified in one area of another side of the second plate.

An electronic device includes a display, a conductive coil, a wireless charging circuit electrically connected to the conductive coil, a power management circuit, a battery; and a processor, wherein the processor may be configured to control the electronic device to: measure a current flowing from the power management circuit to the wireless charging circuit while power is transferred to an external device through the conductive coil, and adjust the power transferred to the external device through the conductive coil based on a part of a power amount preset in a signal requesting addition of power based on a value of the current being between a first threshold value and a second threshold value greater than the first threshold value.

An energy conversion device disposed in series with an RF driver circuit and an RF antenna, the energy conversion device being arranged to convert a portion of available RF power from the RF driver circuit into a different form of energy (direct current, thermal, or higher frequency electromagnetic waves such as light) which is converted, if needed, to DC and stored in an energy storage device coupled with the RF driver circuit for supplying recycled electrical energy thereto. The RF antenna may be an electrically small antenna and thus a antenna matching network may be provided between the RF driver circuit and the RF antenna. The energy conversion device may comprise, for example, (i) a transformer in combination with a rectifying circuit, (ii) a full wave rectifier, (iii) a half wave rectifier, (iv) a heat and/or light producing device, an energy converter (such as a generator) or a combination of the foregoing.

Methods and systems for a near-field communication. In one aspect, a method of fabricating a relay for a near-field communication system comprises the steps of providing a flexible substrate; and providing an electric circuit on the flexible substrate, wherein the electric circuit comprises a hub inductor pattern configured to receive and transmit via electro-magnetic induction; one or more terminal inductor patterns laterally spaced apart from the hub inductor pattern relative to a surface of the flexible substrate and configured to receive and transmit via electro-magnetic induction; and a connecting trace between the hub inductor and the one or more terminal inductors.

A biometric information measurement system and method are disclosed. A biometric information measurement system according to an embodiment of the present invention may comprise an implant device that is inserted into the human body so as to measure biometric information and an external device that transmits a signal to the implantable device while sweeping a frequency.

A wireless charging coil member and a wireless charging coil assembly. The wireless charging coil member comprises a first coil member, a second coil member, and a side coil member. The first coil member comprises a first coil and a first magnetic core. The first coil is winding around the first magnetic core in a first direction. The second coil member comprises a second coil and a second magnetic core. The second coil is winding around the second magnetic core in the first direction. The first coil member is disposed at one side of the second coil member. The side coil member comprises a side coil and a side magnetic core. The side coil is winding around the side magnetic core in a second direction. The second direction is perpendicular to the first direction. The side coil member is disposed between the first coil member and the second coil member.

A bicycle component is provided other than a rear derailleur and a drive unit. The bicycle component includes an electrical part, a rechargeable power source and a non-contact charging portion. The rechargeable power source is electrically connected to the electrical part. The non-contact charging portion is configured to wirelessly receive external electric power and to supply the external electric power to the rechargeable power source. A non-contact charging method is also provided for charging the rechargeable power source of the bicycle component.

Provided is an antenna structure configured to wirelessly charge, the antenna structure including an insulating substrate, a coil formed on a first surface of the insulating substrate in a winding structure, the coil being wound a certain number of times in a clockwise and/or a counterclockwise direction around an axis normal to the insulating substrate, a coating layer including a first magnetic material, the coating layer being disposed adjacent to and surrounding the coil in a winding structure corresponding to the winding structure of the coil, and a shielding sheet including a second magnetic material and facing the second surface of the insulating substrate.

A management system is configured to manage a power feed mat that wirelessly feeds power to a movable body. The power feed mat is configured to communicate while it is placed at a prescribed location. This management system includes a monitoring apparatus that monitors communication by the power feed mat and a processing apparatus that performs prescribed processing when the monitoring apparatus senses loss of the communication.

A wireless charging system may comprise a center console affixed in a vehicle. A layer assembly is attached to the center console. The layer assembly comprises a printed circuit board (PCB) that contains at least one amplifier, at least one filter, and at least one transmitting antenna. A power source is connected to the PCB and is activated at vehicle start or with the activation of a switch. The at least one transmitting antenna is oriented within 0 mm to 25.4 mm from an outer surface of the center console. The transmitting antenna produces a charging zone that emits power within an area that has a shape approximately equaling a cone and provides up to 25 watts of power to a mobile device that comprises a receiving antenna. The mobile device may be a cell phone, a wearable, a dongle, a wireless earbud, or a tablet.