Abstract: The disclosure relates to an error-compensated direct digital modulation device, including: a direct digital radio frequency modulator (DDRM), configured to generate a radio frequency (RF) signal based on a modulation of a digital baseband signal; an error estimator configured to determine an error signal resulting from a deviation based on the generated RF signal and a representation of the digital baseband signal; and an error compensator configured to subtract the error signal from the RF signal to provide an error compensated RF signal.

Abstract: A metal rear cover for the terminal (100) and a terminal are provided. The metal rear cover for the terminal (100) includes a base plate (10) provided with at least one micro-seam band (20), the micro-seam band (20) is provided with a plurality of micro-seams (21), and the at least one micro-seam band (20) divides the base plate (10) into at least two radiation parts (30). At least one of the at least two radiation parts (30) is configured to be coupled to a matching circuit (1) and to receive a feeding signal via the matching circuit (1).

Abstract: A device for providing audio data to a plurality of Bluetooth audio devices is provided. The device includes one or more Bluetooth transceivers for communicating with the plurality of Bluetooth audio devices, at least one network interface, one or more processors, and a memory for storing instructions executable by the one or more processors. The one or more processors may be configured to receive the audio data via the at least one network interface, decode the audio data for audio playing, and transmit the decoded audio data to the plurality of Bluetooth audio devices via the one or more Bluetooth transceivers.

Abstract: Method and apparatus are provided for reporting and receiving actual UL transmission power. In accordance with some implementation, a UE may send a first indication of power headroom to a base station. The UE may receive one or more resources allocation for a UL transmission. The UE then may determine actual transmission power to be used in the UL transmission. Upon determination, the UE may transmit the UL transmission and send an indication of the actual transmission power to the base station. The base station, in response to receiving an indication of actual transmission power of the first UL transmission, may adjust an estimate of the link quality based on the receive indication of actual transmission power.

Abstract: An apparatus is disclosed for range-based transmission parameter adjustment. In an example aspect, the apparatus includes a first antenna, a second antenna, and a wireless transceiver. The wireless transceiver is coupled to the first antenna and the second antenna. The wireless transceiver is configured to transmit a proximity detection signal via the first antenna. The wireless transceiver is also configured to receive a reflected proximity detection signal via the second antenna. The reflected proximity detection signal including a portion of the proximity detection signal that is reflected by an object. The wireless transceiver is additionally configured to adjust a transmission parameter based on the reflected proximity detection signal. The transmission parameter varies according to a range to the object. The wireless transceiver is further configured to transmit an uplink signal using the transmission parameter.

Abstract: A positioning system uses radio wave strengths of radio waves received from first and second wireless transmission terminals movable through an indoor space to locate positions of the terminals. The positioning system includes plural wireless receivers disposed in the indoor space, and a position estimating component that estimates the positions of the terminals based on positions of the receivers using first and second position estimation data in a limited range of the reception data generatable by the receivers. The receivers detect the radio wave strengths and can generate reception data including information relating to the radio wave strengths. At least one of the position estimating component and the receivers acquires the first and second position estimation data limited to first and second set regions suited to the first and second wireless transmission terminals from the reception data receivable relating to the first and second wireless transmission terminals, respectively.

Abstract: A method for automatic Bluetooth connection in a head unit of vehicle includes discovering an advertisement from a mobile device, based on a period of advertisement discovery, when at least one advertisement corresponding to the mobile device is discovered, changing the period of advertisement discovery, discovering the advertisement based on a changed period of advertisement discovery, and arranging a Bluetooth connection between a head unit and a mobile device corresponding to the discovered advertisement.

Abstract: A power amplifier (PA) system is provided for multi-mode multi-band operations. The PA system includes one or more amplifying modules, each amplifying module including one or more banks, each bank comprising one or more transistors; and a plurality of matching modules, each matching module being configured to be adjusted to provide impedances corresponding to frequency bands and conditions. A controller dynamically controls an input terminal of each bank and adjusts the matching modules to provide a signal path to meet specifications on properties associated with signals during each time interval.

Abstract: An information processing system is disclosed. A device conducts a predetermined process by sensing a neighboring radio signal state. An information processing apparatus is connected to the device. In the information processing apparatus, multiple sets of neighboring definition information in which a neighboring signal state is defined, is stored in a storage part. Neighboring definition information depending on a location indicated by location information is specified from among the multiple sets of neighboring definition information based on the location information received from the device. The specified neighboring definition information is sent to the device. In the device, the predetermined process using the neighboring information received from the information processing apparatus is conducted. Sensing information indicating a process result acquired by the predetermined process is generated.

Abstract: The invention provides a body area network. A first coil is configured to be worn on a body portion of a human, and the first coil is configured and positioned to use a body leveraged magnetic field. A transmitter drives the first coil to generate a magnetic body field through the first magnetic coil at a frequency selected such that the body leveraged magnetic field simultaneously includes near-field and far-field components and the far-field components are enhanced by a high dielectric constant of bodily tissue. A second coil couples to the signal transmitted via the first coil, and the second coil is configured and positioned to receive both of the near- and far-field components. A receiver receives the signal from the second coil.

Abstract: A multiway switch, a radio frequency system, and an electronic device are provided. The multiway switch is applicable to an electronic device being operable in a single-frequency single-transmit mode. The electronic device includes the multiway switch, a radio frequency circuit and an antenna system. The antenna system includes 2n antennas. The multiway switch includes four T ports and 2n P ports. The four T ports are configured to be coupled with the frequency circuit. The 2n P ports are configured to be coupled with the antenna system. The four T ports include one first T port coupled with all of the 2n P ports. The multiway switch is configured to be coupled with the radio frequency circuit and the antenna system to implement a preset function of transmitting a sounding reference signal (SRS) through the 2n antennas corresponding to the 2n P ports in turn.

Abstract: A device for implement localization on an agricultural tractor includes a first tractor-side transponder and a second tractor-side transponder. The first tractor-side transponder includes a first transmission and reception region corresponding with a first mechanical implement interface located on the agricultural tractor, and the second tractor-side transponder includes a second transmission and reception region corresponding with a second mechanical implement interface located on the agricultural tractor. An implement-side transponder is in communication with the first and second tractor-side transponders. Each of the first and second tractor-side transponders transmits a separate position identifier to the implement-side transponder via one of the first or second transmission and reception region, and the position identifier is transmitted back to the respective first or second tractor-side transponder.

Abstract: Device authentication may be provided. A mobile computing device may read a device ID from a dispensing device (e.g., a beverage dispenser, kiosk, ATM, etc.) wirelessly when the mobile computing device is placed in close proximity to the dispensing device. The mobile computing device may send the device ID along with a user ID to a server in a notification from the mobile computing device. Using the user ID, the server may look up user preferences from a table on the server. User preferences may be sent from the mobile computing device to the server. The server may send the user preferences to the dispensing device that corresponds to the device ID. In response, the dispensing device may display a customized user interface based upon the user preferences.

Abstract: A system for communicating with a wireless device including a base including a front surface; a plurality of communication coils disposed on the front surface and arranged in a matrix, the coils being tuned to a near-field communication frequency; a selector coupled to the coils; at least one memory storing instructions; and at least one processor coupled to the selector and executing the instructions to perform operations. The operations include at least receiving a plurality of feedback signals associated with the coils; identifying a selected one of the coils associated with a strongest one of the feedback signals; and causing the selector to couple the selected coil with a wireless communication module.

Abstract: Exemplary embodiments provide a simple, inexpensive, and easy-to-operate color capture device that can capture color information and transmit the captured color information to an interface device such as smartphone, where the captured color information is optionally processed and is then transmitted to a remote server for subsequent production of the customized cosmetic.

Abstract: A wireless device configured to selectively enable and disable functionality when another wireless device that is paired to it is set to enable and disable functionality is provided. The wireless device can mirror the settings of a paired device such that when the paired device is set to airplane mode, the wireless device can automatically be set to airplane. Furthermore, when the airplane mode is disabled in the paired device, the wireless device can automatically disable its own airplane mode.

Abstract: In response to receiving an acquisition request for acquiring wireless connection information from an external apparatus, it is determined whether or not a sensor for detecting a nearby object has detected an object. If it is determined that the sensor has detected an object, the wireless connection information is transmitted to the external apparatus. If it is determined that the sensor has not detected an object, the wireless connection information is not transmitted to the external apparatus.

Abstract: Systems and methods are disclosed for improved linearity performance of a mixer. An example mixer includes switching circuit elements configured to be switched on and switched off based at least partly on a local oscillator signal and capacitors including a respective capacitor in parallel with each of the switching elements. The mixer is configured to mix the input signal with the local oscillator signal to thereby frequency shift the input signal.

Abstract: An apparatus and method for beam-forming communication in a mobile wireless backhaul network. The apparatus included in a base station includes: an antenna unit radiating a beam according to predetermined beam characteristics and transmitting a signal of the base station to a mobile terminal in a high speed moving body; a position searching unit detecting a distance, a speed, and a direction of movement between the base station and the mobile terminal; a beam setting unit grouping one or more beams according to the detected distance between the base station and the mobile terminal and setting the number of beam search groups in which a beam search is to be performed and a beam search period according to the detected speed and direction of movement; and a beam searching unit searching for the beam of the mobile terminal based on beam setting values set by the beam setting unit.

Abstract: A network control system configured to manage radio communication devices for a Spectrum Access System (SAS) shared spectrum wireless network is disclosed. The network control system may include a receiver to receive an estimate of a proximity to a Priority Access License (PAL) radio communication device for a plurality of user terminals. The estimate may be based on measurements of signals transmitted by the PAL radio communication device. The network control system may also include a processor configured to cause a user terminal to be configured to perform measurements based on the estimate of the proximity to the PAL radio communication device. The performed measurements may include an interference measurement indicative of interference to the PAL radio communication device from a General Authorized Access (GAA) radio communication device.