Abstract: According to one embodiment, a wireless communication device includes: a first transmitter configured to transmit a first frame to instruct transmission prohibition to a first wireless communication device, and to transmit a signal to a second wireless communication device during a period in which the transmission is prohibited; and a first receiver configured to receive power reception amount information corresponding to the signal after the signal is transmitted.

Abstract: A transmitting apparatus according to the present invention includes transmission antennas capable of forming a plurality of beams respectively directed to a plurality of terminals and a precoder unit that performs precoding on signals transmitted from the transmission antennas such that received power in the terminals excluding a desired terminal serving as a transmission destination of a transmission signal and two or more IUI terminals, which are the terminals other than the desired terminal, is equal to or smaller than a threshold.

Abstract: A method and system for measurement of a device under test (DUT) are provided. According to one aspect, a system includes a first positioner having a first antenna and a second positioner having a second antenna. The system also includes circuitry configured to cause the first antenna to radiate a test signal to the DUT and to implement one of a probing mode and an interference mode. The probing mode causes, for each of at least one position of the first antenna, the second antenna to receive a signal from the DUT at each of the second set of positions of the second antenna. The interfering mode causes, for each of at least one position of the first antenna, the second antenna to transmit an interfering signal to the DUT at each of the second set of positions of the second antenna.

Abstract: Systems and method are provided to facilitate predictive mitigation of noise. A vehicle may measure noise floor levels and transmit a noise floor signal to a noise signal aggregator. Based on the noise signal, the noise signal aggregator may update a noise floor map database. The noise floor map database may associate a plurality of geographic locations with noise floor levels for a plurality of cycle segments. Accordingly, the noise signal aggregator may update a noise floor level in the noise floor map database that corresponds to the location and time associated with the transmitted noise signal. The noise floor map database may then be queried to retrieve noise floor levels for locations further along a route traversed by a vehicle such that the vehicle may predictively tune one or more antennas to mitigate interference associated with the noise floor.

Abstract: A wireless communication system to control the transmit power for a wireless repeater chain. The method includes a wireless access point wirelessly exchanging data with User Equipment (UEs) over the wireless repeater chain. The method also includes the wireless access point determining interference levels for wireless access points in neighboring cells, and when the interference levels for at least one of the wireless access points in the neighboring cells exceeds an interference threshold, then the method includes the wireless access point decreasing the transmit power of the wireless repeater chain.

Abstract: A method of synchronous recording of audio is described.

Abstract: A radio-frequency switch includes a series field-effect transistor, a shunt field-effect transistor having a gate node, and shunt arm control circuitry configured to receive an internal regulator voltage and provide the internal regulator voltage to the gate node of the shunt field-effect transistor when the radio-frequency switch is in a stand-by mode of operation.

Abstract: Systems, devices, and methods for determining and establishing frequency-dependent gain compensation in wide bandwidth communication systems are disclosed. Variable frequency-dependent gain compensation circuits, or variable equalizers, have settings that configure them to establish discrete frequency-dependent gain compensation. The frequency-dependent gain compensation can include various types and levels of gain slope and/or ripple. The settings of the variable equalizers can be set by control signals established a control circuit in response to signals from an external computer. The variable equalizers are coupled to other circuits or devices and the frequency-dependent gain of the combined circuit are measured. The settings of the variable equalizer are then changed to establish an optimal frequency-dependent gain profile or frequency-dependent gain that is closest to a predetermined frequency-dependent target gain profile. The settings can then be saved in a memory or register.

Abstract: Methods and systems are provided for automatically pairing headset to gaming audio source based on proximity. A headset that is configurable to process audio may pair with a first audio basestation configured for communicating audio between the headset and a game console, the pairing comprising establishing one or more wireless links for communicating the audio between the first audio basestation and the headset, and pair with a second audio basestation, maintaining pairing with the first audio basestation after said pairing with the second audio basestation. The pairing may occur automatically when the headset comes within a certain distance of the first audio basestation or the second audio basestation. The distance may correspond to physical contact between the headset and the audio basestation. The physical contact may correspond to a tapping of the headset onto the audio basestation.

Abstract: A wide band radio frequency (RF) circulator is presented. The RF circulator includes at least one stage having four ports configured to circulate an input RF signal from a first port to a second port while isolating a third port, from the second port to the third port while isolating the first port, and from the third port to the first port while isolating the first port, wherein the fourth port is grounded; and wherein the at least one stage includes at least a pair of couplers connected via a delay line, wherein each coupler includes a main transmission line and a coupling transmission line disposed on distinct dielectric layers.

Abstract: An apparatus and a method are provided. The solution includes controlling the reception of a signal; dividing the received signal into a predetermined number of signal streams including the same information; applying a linear process to each signal stream, the processes having different frequency characteristics for each stream; applying a shared interference rejection over the signal streams.

Abstract: Communications receivers and devices are disclosed. A communications receiver includes a low noise amplifier; a multi-band transmit blocking filter having a first port connected to an output of the low noise amplifier, and an RF analog-to-digital converter having an input connected to a second port of the multi-band transmit blocking filter. The multi-band transmit filter passes the receive frequencies of a group of two or more LTE bands, where a first receive frequency range of a first band in the group and a second receive frequency range of a second band in the group are disjoint and not subsets of a receive frequency range of a third band in the group, and attenuates the transmit frequencies of at least some bands in the group by at least twenty dB.

Abstract: Various embodiments of an invention for pairing a plurality of wireless devices using wireless communications is disclosed. A method for pairing a plurality of devices comprises attenuating a pairing signal emitted from a wireless device within a pairing enclosure during a pairing procedure. A power level of the pairing signal that is emitted through the pairing enclosure is received at a pairing signal receiver. The pairing procedure is permitted to continue when the power level of the pairing signal is less than a predetermined power level.

Abstract: A SIM card connector includes a base, signal spring, a detection apparatus, and a controller. The detection apparatus is configured to cooperate with one side of a SIM card, and includes a fixed contact and a detection spring, where an action of the SIM card can be detected by separation or union between the fixed contact and the detection spring. The controller can disconnect a power supply of the signal spring before the SIM card is separated from the signal spring, and can switch on the power supply of the signal spring after the SIM card presses against the signal spring, which effectively prevents the SIM card from being burned out by a momentary electric arc generated between the SIM card and the signal spring when the SIM card is being inserted or removed.

Abstract: An improved system architecture for making spectrum information available to one or more devices and for providing and using the spectrum information at a device. The improved architecture employs an arrangement of software processes that interact to provide a flexible and highly-configurable technique for controlling access to spectrum information. To that end, a spectrum information server executes a server process having a library of spectrum-related functions including, for example, functions for retrieving spectrum data from spectrum data sources and/or for processing retrieved spectrum data. The spectrum information server also executes one or more device host processes configured to communicate with at least one compatible device process executing on a spectrum-aware (SA) device. In an illustrative embodiment, a device process on the SA device may request spectrum information from a device host process on the spectrum information server.

Abstract: A smartphone holding device of a vehicle includes: a holder configured to hold a smartphone; a main body configured to receive the holder such that the holder is extendable from the main body; an actuator configured to generate a drive force causing vertical movement of the holder; and a vertical feeding member installed between the actuator and the holder and configured to vertically move the holder by the drive force from the actuator.

Abstract: A structure comprises a plurality of first turns of a coil and a plurality of second turns of the coil having a similar shape as the plurality of first turns of the coil, wherein the plurality of first turns of the coil and the plurality of second turns of the coil have a similar center position and a current flowing through the plurality of first turns of the coil and a current flowing through the plurality of second turns of the coil are in opposite directions.

Abstract: The present disclosure provides a control method of an Audio Video Navigation (AVN) system for vehicles. The control method may include: connecting the AVN system to a terminal through a wired connection based on a first protocol, transmitting an activation signal to the terminal through the wired connection, receiving address information and acceptance information of the terminal for wireless connection with the terminal based on a second protocol through a specific application in the terminal activated based on the activation signal, automatically executing wireless connection with the terminal based on the acceptance information, and automatically requesting specific information to the terminal and receiving the specific information through wireless connection based on the acceptance information.

Abstract: The subject technology discloses configurations for determining, at a first computing device, if a second computing device is within a predetermined distance of the first computing device. The subject technology then establishes, at the first computing device, a wireless near field communication (NFC) connection with the second computing device. Information for configuring a wireless tethering connection with the second computing device is then transmitted over the wireless NFC connection. Further, the subject technology receives, over the wireless NFC connection, confirmation that the wireless tethering connection has been configured.

Abstract: Synchronized media streaming in a device chain including first, second and third Bluetooth media device having a controller and time synchronization algorithm. The first device formats a first media packet including received media data, second device address, and synchronization information including packet start time including a delay time and cumulative clock drift counted thus far. The second device receives the first packet and formats a second packet including the media data, third device address, updated synchronization information including the second packet's play start time, local clock time, clock drift, and a cumulative clock drift counted thus far. The second device transmits the second packet to the third device. The synchronization algorithms begin synchronized playing of the media data including the first device playing after the delay time, second device playing after the first packet's play start time, and the third device playing after the second packet's play start time.