A mobile telephone in accordance with some implementations has a mobile telephone upper edge unit including a right-ear cartilage conduction unit, a left-ear cartilage conduction unit, and a linking unit linking the right-ear cartilage conduction unit and the left-ear cartilage conduction unit, the units being exposed at the mobile telephone surface; and a cartilage-conduction vibration source for transmitting vibration to the mobile telephone upper edge unit. The mobile telephone can include: a sound source unit for outputting a sound signal; an acoustic processing unit for applying correction to the sound signal output from the sound source unit, doing so on the basis of the vibration frequency characteristics of ear cartilage; a cartilage-conduction vibration source vibrated by the sound signal corrected by the acoustic processing unit; and a detection unit for detecting pressing of the mobile telephone against the ear cartilage. When the output of the detection unit is at or above a predetermined level, the acoustic processing unit performs correction to boost the gain at the high end within a frequency band in which the cartilage-conduction vibration source is vibrated to a level higher than the gain when the external auditory meatus is in an unoccluded state.

A coil device for transmitting wireless power includes at least one switch, a first coil, a second coil configured to be physically connected to the first coil through the at least one switch, a third coil configured to be physically connected to the first coil through the at least one switch, and a logic circuit configured to control the at least one switch. In a first mode, the logic circuit is configured to control the at least one switch so that an inductance of the first coil is a first inductance and control the at least one switch so that the first coil and the second coil are connected to each other and the first coil and the third coil are not connected to each other. In a second mode, the logic circuit is configured to control the at least one switch so that the inductance of the first coil is a second inductance and control the at least one switch so that the first coil and the third coil are connected to each other and the first coil and the second coil are not connected to each other.

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.

The present specification discloses an incoming/outgoing-talk unit having an ear-hook unit, a cartilage conduction vibration unit that makes contact with ear cartilage in a state where the hook unit is hooked to the ear, an outgoing-talk unit, and a unit for performing short-range wireless communication with the mobile telephone. Further disclosed is an incoming-talk unit having an ear-hook unit, and a cartilage conduction vibration unit for transmitting cartilage conduction from outside of ear cartilage in a state where the hook unit is hooked to the ear. Also disclosed is an incoming-talk unit having a three-dimensional viewing adjustment unit, a temple having a unit for adjusting contact of eyesight-adjusting eyeglasses with the temple when the unit is superposedly mounted on the eyesight-adjusting eyeglasses; and an audio information output unit provided to the temple.

In this non-contact power feeding system that is capable of transmitting power from a power transmitting device (1) to a power receiving device (2) by a magnetic field resonance scheme, the power transmitting device (1) is provided with first to n-th resonant circuits (TT[1]-TT[n]) which are provided with coils (T.sub.L) that are different in size, respectively, and which have a resonant frequency set to a prescribed reference frequency. Prior to power transmission, test magnetic fields are generated in sequence in the first to n-th resonant circuits to detect the amplitude of current flowing through the coils of respective resonant circuits, and the presence/absence of a foreign object is determined on the basis of the obtained first to n-th amplitude detected values, to control execution of the power transmission.

An antenna system and method is provided for communicating with a medical device implanted in a patient. Upper and lower shells join to form an antenna tunnel there between. At least one of the upper or lower shells includes an opening along an edge thereof to form a passage to the antenna tunnel. The upper shell includes an outer patient engaging surface configured to abut against the patient. An antenna assembly includes a substrate and an inductive RF antenna provided on the substrate. The antenna assembly is movable within the antenna tunnel. The substrate includes a stem projecting through the passage. A handle is joined to the stem and is located outside of the antenna tunnel. The antenna assembly is movable within the antenna tunnel in response to adjustment of the handle relative to the upper and lower shells. An electronics circuit is electrically coupled to the antenna and is configured to transmit and receive inductive RF signals to and from the medical device implanted in a patient.

The technology provides for a system for determining wireless charging alignment. In this regard, one or more processors may receive motion data from one or more sensors of a computing device indicating a motion of the computing device. The one or more processors may also receive charging data related to a state of an energy storage of the computing device or a state of energy transfer between a wireless charger and the computing device. Based on the motion data and the charging data, a reference vector associated with at least two charging rates may be determined. An alignment vector between the computing device and the wireless charger may then be determined based on the reference vector and the associated charging rates. Based on the alignment vector, an output may be generated guiding movement of the computing device to align with the wireless charger.

An NFC interface with an energy management function. The NFC interface has an independent energy antenna, and the NFC interface comprises an energy management module and an energy storage module, wherein the energy management module is electrically connected to the energy storage module; and the energy management module is used for charging the energy storage module according to electric energy collected by the energy antenna, and is further used for cutting off charging to the energy storage module when the energy storage module pulls down a voltage collected by the energy antenna to a first voltage threshold value. By means of adding an energy management module to dynamically manage collected energy, the present invention can greatly improve the energy receiving power of an NFC interface, and also carries out storage management on the electric energy, thereby allowing an apparatus with such an NFC interface to collect more energy; and can output more NFC energy to the outside, so that the NFC interface has more extensive use.

A power transmitter is configured to transfer power to a power receiver using a wireless inductive power signal. The power transmitter includes a power signal generator configured to drive an inductor to provide the power signal to an inductor of the power receiver. A power loop control is employed by the power receiver for providing power control error messages to the power transmitter, which also includes a query message processor configured to detect a query message from the power receiver using load modulation of the power signal. A modification processor of the power receiver is configured to modify a response of the power loop controller to the power control error messages dependent on the query message. The power receiver is configured to detect the modifications to the operation of the power control and interpret this as a response from the power transmitter to the query message from the power receiver.

An inductive power transmitter comprising a transmission circuit having a coil, the transmission circuit tuned, adapted or optimised at or about a first frequency for inductive power transfer or object detection; an inverter operable to drive the transmission circuit at the first frequency; and a controller arranged to control the inverter to drive the transmission circuit at a second higher frequency, and to modulate a signal at the second higher frequency according to a predetermined handshake signal in order to generate a response from a predetermined non-authorised device proximate the coil.