Foldable wireless electronic devices that communicate wirelessly are provided that can attenuate the cavity modes created when the devices are folded. The electronic devices may utilize prescribed housing dimensions, ohmic contacts, and capacitive coupling to attenuate the cavity modes. There may be minimal impact on the industrial design of the devices. The radiation efficiency and VSWR of the antennas of the electronic devices may not be degraded. Also, the frequency of the cavity modes may be controlled such that the cavity modes are resonated out of frequencies of interest, and the severity and occurrence of RF energy absorption may be attenuated or eliminated. Users of the foldable wireless electronic devices may have increased satisfaction as the devices may perform better while still having desirable aesthetics and appearance.

The system (4) is provided for managing at least one sub-assembly (2) of an electric battery. Each sub-assembly comprises a plurality of power storage cells (12). The system includes, for each power storage cell, a circuit (14) for managing the state of the cell and a communication circuit (16), which is configured such that it receives and transmits data relative to the cell. The communication circuit is configured such that it transposes, over a carrier frequency, the data to be received and transmitted, the value of said carrier frequency being greater than or equal to 1 GHz. The management system further includes, for each sub-assembly, a loss cable (18) connecting the power storage cells of said sub-assembly. The loss cable acts as a waveguide and is coupled by capacitive coupling to the communication circuit of each power storage cell.

In a power transmission unit, a first coil pattern group and a second coil pattern group are connected with each other with an upper layer outer pattern, located outside in an axial line direction and outside in the intersecting direction, connected with a lower layer inner pattern, located outside in the axial line direction and inside in the intersecting direction. Furthermore, the first coil pattern group and a second coil pattern group are connected with each other with a lower layer outer pattern, located inside in the axial line direction and outside in the intersecting direction, connected with an upper layer inner pattern, located inside in the axial line direction and inside in the intersecting direction.

Aspects of the subject disclosure may include, for example, a network termination includes a downstream channel modulator modulates downstream data into downstream channel signals to convey the downstream data via a guided electromagnetic wave that is bound to a transmission medium of a guided wave communication system. A host interface sends the downstream channel signals to the guided wave communication system and receives upstream channel signals corresponding to upstream frequency channels from the guided wave communication system. An upstream channel demodulator demodulates upstream channel signals into upstream data. Other embodiments are disclosed.

One example discloses a wireless device, including: a first near-field device, including a near-field receiver, configured to be coupled to a first surface; wherein the first near-field device is configured to receive a received near-field signal having a received signal strength (RSS); wherein the received near-field signal originates from a second near-field device having a near-field transmitter and configured to be coupled to a second surface; wherein the second near-field device is configured to generate a transmitted near-field signal having a transmitted signal strength (TSS); wherein the TSS of the transmitted near-field signal interacts with a third surface to transform into the RSS of the received near-field signal; and wherein the first near-field device is configured to translate a magnitude of the RSS to a distance of the first and/or second surfaces from the third surface.

A power feeding unit includes: a power feeding electrode configured to be coupled through an electric field with a power receiving electrode of a power receiving unit; a power feeding section configured to feed the power receiving unit with power through the power feeding electrode; and a power feeding side communication section configured to communicate with the power receiving unit through the power feeding electrode.

Embodiments of the present invention provide an antenna arrangement including a magnetic antenna and a tuning element. The magnetic antenna includes a loop interrupted one or several times and a tuning element for tuning the magnetic antenna. The tuning element is configured to provide a tuning signal (e.g., control signal) for tuning the magnetic antenna, and to control the tuning element with the tuning signal to tune the magnetic antenna.

Using inductive currents to wirelessly charge a device via a device connected to a power source. This inductive charging may result when a first mobile device recognizes a second mobile device via a wireless connection (e.g., Bluetooth, Bluetooth Low Energy (BLE), Near-Field Communication (NFC), or the like). An application stored on the first mobile device may recognize a second mobile device by transmitting an advertising packet when the first mobile device is connected to a power source. An advertising packet may be received by the second mobile device and the second mobile device may transmit a response to the advertising packet in order to generate a connection between the first and second mobile devices. The response may include data such as, connection strength, response time, connection preferences, and the like. Upon detection and connection, the second mobile device may be wirelessly charged by the first device via inductive charging.

One example discloses a first near-field electromagnetic induction (NFEMI) device, including: a controller configured to be coupled to an NFEMI antenna and to a structure; wherein the NFEMI antenna includes electric (E) near-field and magnetic (H) near-field generating and/or receiving portions; wherein the controller is configured to modulate a ratio of energy sent to and/or received from the electric and magnetic portions; wherein the controller is configured to receive a signal corresponding to whether the structure is between the first NFEMI device and a second NFEMI device; and wherein the controller is configured to decrease the ratio of energy sent to and/or received from the electric (E) portion as compared to energy sent to and/or received from the magnetic (H) portion if the structure is between the first and second NFEMI devices.

An authorization device having an activation module and a wireless interface is configured in a non-enabled mode. In the non-enabled mode, the wireless interface is configured to receive data, and the authorization device is configured to block a request received via the wireless interface to interact with the authorization device. The activation module detects an activation operation. In response to detecting the activation operation, the activation module configures the authorization device in an enabled mode. In the enabled mode, the authorization device is configured to process a request to re-configure the authorization device received via the wireless interface, and to transmit authorization information to a reader device via the wireless interface.