An antenna includes a self-supporting electrically conductive wire having a width (W) and extending longitudinally along a length and between first and second ends of the conductive wire. The conductive wire forms one or more loops and comprises an electrically conductive layer disposed on and aligned with an adhesive layer. A width and a length of each of the conductive and adhesive layers are substantially co-extensive with the width and the length of the conductive wire.

A power transfer device is a power transmitter (201) or a power receiver (205) conducting power transfer using an electromagnetic power transfer signal employing a repeating time frame comprising a power transfer time interval and an object detection time interval. A power transfer circuit (303, 307) comprises a power transfer coil (203, 207) receiving or generating the power transfer signal during the power transfer time intervals. A communicator (315, 323) communicates with the other device via an electromagnetic communication signal. A communication resonance circuit (317, 321) comprises a communication antenna (319, 325) for transmitting or receiving the electromagnetic communication signal. During the communication, the communication resonance circuit (317, 321) provides a resonance at a first resonance frequency to the communicator (315, 323). A controller (333, 335) adapts the communication resonance circuit to not provide the resonance at the first resonance frequency to the communicator during object detection time intervals. The approach may provide improved detection of resonance objects, such as smart cards (e.g. NFC cards).

A method of radio communication of a slave device with a master device, the method comprising steps of: receiving (202) by the slave device of a connection request sent by the master device comprising first communication parameters for communicating with the master device, the communication parameters being indicative of a sequence of frequency channels to be used during successive periods to communicate with the master device, during one of the periods, implementing by the slave device of a processing capable of causing the master device to send a connection update comprising second parameters for communicating with the master device to be used in place of the first communication parameters, the processing comprising an action (210) on one of the frequency channels capable of causing the master device to detect a degradation in communication quality on the frequency channel.

Disclosed herein are a number of embodiments for wireless and non-conductive transfers of power and data to electronic devices. These technological advances can be implemented in retail security products (e.g., merchandising display positions for devices such as smart phones, tablet computers, wearables (e.g., smart watches), digital cameras, etc.) as well as docking systems for tablet computers.

A system may include an electronic device that includes an enclosure having a transparent cover. The electronic device may also include a display positioned below the transparent cover and configured to display a first graphical user interface and a second graphical user interface different from the first graphical user interface, and a touch sensor positioned below the transparent cover and configured to detect touch inputs applied to the transparent cover. The system may also include a protective case that includes a shell defining a cavity and configured to at least partially cover the enclosure of the electronic device when the electronic device is positioned in the cavity, and a near-field wireless communication antenna coupled to the shell and detectable by the electronic device. In response to detecting the near-field wireless communication antenna, the electronic device may be configured to switch from the first graphical user interface to the second graphical user interface.

A method for operating a wireless power transmission system includes providing, a driving signal for driving a transmission antenna. The method further includes receiving, by at least one transistor of an amplifier, the driving signal at a gate of the at least one transistor and inverting a direct current (DC) input power signal to generate an AC wireless signal. The method further includes determining an operating mode for signal damping during transmission or receipt of wireless data signals by selecting one of a switching mode and an activation mode for the operating mode and determining damping signals based on the operating mode. The damping signals are configured for switching the damping transistor to control signal damping during transmission or receipt of wireless data signals. The method further includes selectively damping, by the damping circuit, the AC wireless signals, during transmission of the wireless data signals based on the damping signals.

Described are systems, methods, apparatuses, and computer program products for wireless in-ear-monitoring (IEM) of audio. A system includes transmitter(s) configured to map orthogonal sub-carriers of a digital signal to narrowband receivers to form receiver-allocated audio channels, modulate the digital signal, and transmit the signal as an ultra-high frequency (UHF) analog carrier wave comprising the orthogonal sub-carriers to the nearby receiver. A narrowband receiver is configured to demodulate and sample the sub-carriers allocated to the receiver. Sub-carriers can be positioned orthogonal to one another in adjacent sub-bands of the frequency domain and beacon symbols and pilot signals can be iteratively provided in the same portion of the frequency domain for each channel. The receiver can use non-data-aided and data-aided approaches for synchronization of the time domain and frequency domain waveforms of the received signal to the transmitted signal prior to sampling the allocated sub-carriers.

Systems, apparatuses, and methods are provided for enhancing users' overall experiences with physical items by supplementing their physical experiences with digital experiences. According to an embodiment, a user uses an electronic device to scan a smart tag associated with an item to obtain an item identifier of the item. The electronic device sends the item identifier to a server, which selects digital content related to the item and sends the selected digital content to the user's electronic device for display.

A communication method includes: receiving out-of-band communication modes supported by a power transmitter (PTX) and transmitted by the PTX via a first communication mode, wherein the first communication mode comprises an enhanced in-band communication mode; matching the out-of-band communication modes supported by the PTX with out-of-band communication modes supported by a power receiver (PRX); and when the out-of-band communication modes supported by the PTX and the out-of-band communication modes supported by the PRX share an identical out-of-band communication mode, using the identical out-band communication mode to return data to the PTX or to return a result of the matching between the out-of-band communication modes to the PTX. Embodiments of the present disclosure can be used to achieve compatibility with multiple communication modes and to support high-speed communication in a wireless charging system.

A wireless communication device includes a base sheet in a folded state, a first conductor pattern disposed on a first principal surface of the base sheet, a second conductor pattern disposed on a second principal surface of the base sheet opposite to the first principal surface, an RFIC chip disposed on the base sheet so as to electrically connect to the first conductor pattern, and a sheet-shaped connection conductor coupled to a turning part of the base sheet so as to partially overlap with an end portion of the first conductor pattern near the turning part and an end portion of the second conductor pattern near the turning part.