A control device includes a control portion that controls a power supply portion that supplies power to a load based on received power received by a power receiving portion from a power transmitting device. In the case where the power receiving portion, after receiving a signal having a first frequency and a first duty from the power transmitting device, receives a signal having a second frequency that is different from the first frequency or a signal having a second duty that is different from the first duty, the control portion specifies an issued command based on a length of a reception period of the signal having the second frequency or the signal having the second duty.

A display panel comprises a pixel array, multiple vertical driving lines, multiple parallel driving lines, and a first induction area. The pixel array comprises multiple pixels. One of the multiple parallel driving lines comprises a first driving line and a second driving line. The first induction area comprises part of the pixels, wherein magnetic field of a first RF antenna passes through the display panel via the first induction area, a first projection area is corresponding to a vertical projection of the first RF antenna on the display panel, and the first induction area is larger than the first projection area. The first driving line and the second driving line are configured to drive a first row of pixels among the part of the pixels, and the first driving line and the second driving line are electrically isolated from each other within the first induction area.

According to an aspect, a hearing device such as a bone conduction hearing aid is disclosed. The device includes an implantable prosthetic system comprising a receiver coil, and an external audio processor device. The audio processor device includes a microphone configured to transform a received sound into an electrical input signal, a signal processor configured to process the electrical input signal into a processed electrical data signal, a transmitter coil configured to inductively transmit data signals and/or power, across the skin of a hearing device user, to the receiver coil. The audio processor device further includes a detection device configured to detect if the external audio processor device is within a predefined distance from the implantable prosthetic system or to detect if a coupling coefficient between the transmitter coil and a receiver coil is within a predefined value range.

According to a first aspect of the present disclosed subject matter, a system for wirelessly charging a device, having a built-in coil, via a medium comprising: at least one relay adapted to inductively transfer power for charging the device; and a transmitter configured to inductively transmit to the at least one relay the power for charging the device, wherein the transmitter and the relay are separated by the medium and wherein the relay and the transmitter substantially face each other; wherein the transmitter further comprises a transmitter coil and a transmitter capacitor constituting a transmitter resonance circuit, wherein the relay further comprises a relay coil and a relay capacitor constituting a relay resonance circuit, and wherein a joint resonance frequencies (JRF) of both resonance circuits have a main resonance frequency (MRF); and wherein the transmitter operates at an operational frequency (OPF) selected from a range of OPFs, wherein the range of OPFs is substantially different than the MRF.

A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device may be a wireless charging mat or other device with coils for transmitting wireless power signals. The wireless power receiving device may be a cellular telephone or other device with coils for receiving the transmitted wireless power signals. The wireless power receiving device has adjustable rectifier circuitry coupled to a pair of coils. The pair of coils is coupled in series at a node. A transistor is coupled between ground and the node and is controlled by control circuitry. The state of the transistor can be changed to place the adjustable rectifier circuitry in either a first mode of operation in which the adjustable rectifier circuitry forms a full-bridge rectifier or a second mode of operation in which the adjustable rectifier circuitry forms a pair of parallel half-bridge rectifiers.

According to various embodiments of the present disclosure, an electronic device may include a housing, a conductive pattern that is arranged within the housing and is formed to generate a magnetic field, a plate that forms at least a part of a first surface of the housing and includes a material that at least partially transmits the magnetic field generated by the conductive pattern, and a communication circuit that is configured to transmit at least one transaction information to an external device by using the conductive pattern. The conductive pattern may include a first end that is electrically connected to the communication circuit, a second end that is electrically connected to the communication circuit, and a coil that is connected between the first end and the second end and includes a plurality of turns that are substantially parallel to a surface of the plate.

The present disclosure provides an array substrate and a display device for reducing the space occupied by the antenna inside the mobile phone, so as to reduce the thickness of the mobile phone and make the mobile phone thinner and lighter. The array substrate according to the present disclosure includes dummy signal lines and a conductive portion. The dummy signal lines and the conductive portion are disposed in different layers. An insulating layer is disposed between the dummy signal lines and the conductive portion. A via is disposed on the insulating layer. The dummy signal line is connected to the conductive portion through the via. The dummy signal line and the conductive portion are used to form an antenna.

According to one embodiment a circuit comprises a supply pin configured to receive a supply voltage, a non-volatile memory for storing one or more parameters, and a Near Field Communication (NFC) transceiver that is configured to receive data representing the one or more parameters. The circuit is configured to deactivate the NFC transceiver in response to receiving the supply voltage at the supply pin.

An apparatus for detecting the approach of a mobile device and for near-field communication with the device, includes an NFC antenna under a receiving surface, at least one matching component and an electronic control unit connected by a power supply line and capable of near-field communication with the mobile device. The detection apparatus includes: at least one conductive element; a selector, located on each side of the component and on each side of the conductive element, each having two positions: in a first position the component is connected to the power supply line and the conductive element is not; in a second position the conductive element is connected to the power supply line and the component is not; measuring a variation in an electrical parameter of the conductive element when the two selectors are in the second position to detect the approach of the mobile device toward the receiving surface.

A dual mode, passcode storage, wireless secure lock is disclosed. In one embodiment, a key is provided that includes a key coil, a first key data processing device (DPD), a second key DPD, and a key radio transceiver. The first key DPD is configured to receive a first authentication code (AC) from a lock via the key coil. The first key DPD is configured to compare the first AC with data in memory of the key DPD. The first key DPD is configured to activate the second key DPD in response to response to determining the first AC compares equally to data in memory of the first key DPD. The second key DPD is configured to transmit a second AC to the lock via the key radio transceiver after the second key DPD is activated.