Abstract: A method for managing data in an electronic device including a first processor and a second processor, the method comprising: receiving data transmitted by a first external device by using the first processor; identifying, by the first processor, a service or content corresponding to the data; in response to detecting that the data corresponds to a first service or a first content, using the first processor to transmit at least a portion of the data to the second processor; and in response to detecting that the data corresponds to a second service or a second content, using the first processor to transmit at least a portion of the data to a second external device.

Abstract: A flexible multi-channel diversity wireless audio receiver system for routing, processing, and combining multiple radio frequency (RF) signals containing audio signals received on respective antennas is provided. The wireless audio receiver system provides flexible routing of multiple RF signals in different selectable modes, and low latency uninterrupted reception of signals in harsh RF environments by combining multiple RF signals to maximize signal-to-noise ratio. The audio output may be generated in an uninterrupted fashion and mitigate multipath fading, interference, and asymmetrical noise issues. Received RF signals may also be cascaded by the wireless audio receiver system to allow daisy chaining.

Abstract: An active antenna test system comprising an active antenna unit comprising: a test signal generator arranged to generate at least a first test signal and at least one second test signal; a plurality of transmitter modules operably coupled to the test signal generator wherein the plurality of transmitter modules are arranged to simultaneously process the first test signal and at least one second test signal to produce at least one radio frequency test signal therefrom; and at least one receiver module arranged to process one or more signals falling in at least one spectral band determined to be susceptible to intermodulation distortion products caused by the at least one radio frequency test signal being generated from the first test signal and at least one second test signal; and an intermodulation determination module operably coupled to the at least one receiver module and arranged to determine a first received intermodulation performance.

Abstract: A surface acoustic wave (SAW) filter that receives an aggregate circuit and outputs two or more sub-signals on outputs each of a different frequency band. The sub-signals are amplified by low noise amplifiers and, in one implementation, the amplified sub-signals can be summed. The outputs are connected via a switched passive network so that portions of the sub-signals on the outputs that are not in the selected frequency band are at least partially terminated.

Abstract: A transmit-and-receive module includes a duplexer, a power amplifier, and a low-noise amplifier. The duplexer includes a transmit filter and a receive filter. The power amplifier and the low-noise amplifier are integrated with each other. In a Smith chart, impedance in a receive band of the receive filter seen from a receive terminal intersects a line connecting a center point of noise figure circles and a center point of gain circles. The center point of the noise figure circles represents the impedance at which the noise figure of the low-noise amplifier is minimized. The center point of the gain circles represents the impedance at which the gain of the low-noise amplifier is maximized.

Abstract: A chip-to-chip signal transmission system including a first unit set and a second unit set arranged in a first direction is provided. The first unit set and the second unit are configured to perform the signal transmission between a first chip and a second chip. There is a shift between the first unit set and the second unit set in a second direction such that the first unit set and the second unit set are shifted in the second direction and an overlapping region is formed. By adjusting the size of the overlapping region, the signal noise and the signal attenuation due to the misalignment between the first chip and the second chip or the electromagnetic interference of the adjacent signals are reduced and the signal transmission quality is thus improved. Furthermore, a method for arranging chips is also provided.

Abstract: According to one embodiment, a radio communication device 1 includes a variable frequency divider 17 that divides a frequency of a reference clock REFCLK and outputs a frequency divided clock DCLK; a controller 15 that controls a frequency dividing ratio of the variable frequency divider 17 so that an integral multiple of a frequency of the frequency divided clock DCLK is not included in a frequency band of a high-frequency signal that has been received from outside by radio; and a DCDC converter 18 that performs a switching operation in synchronization with the frequency divided clock DCLK to generate an output voltage Vout obtained by stepping down an input voltage Vin.

Abstract: A system for measuring radio frequency power of an incoming radio frequency signal is described, with at least one radio frequency interface for receiving the radio frequency signal, a signal processing unit for processing the radio frequency signal, a frequency selection unit for separating at least two frequency bands of the incoming radio frequency signal, the frequency selection unit comprising several filters, at least one power detector for measuring the radio frequency power of at least one of the frequency bands processed by the at least one power detector. At least one of the several filters is connected with the at least one power detector. The frequency selection unit is configured to forward the incoming radio frequency signal to at least one of the filters wherein the frequency selection unit has at least a first operation state in which the incoming radio frequency signal is forwarded to more than one filter simultaneously or subsequently.

Abstract: A technique for determining a time alignment (TA) error in a circuitry is provided. One or few measurement cycles can be utilized for a closed-loop TA alignment, e.g., for envelope tracking in a transmitter. As to a method aspect of the technique, the amplitudes of a first signal and a second signal are determined. A first measure is computed that is indicative of a relative amplitude error, and a second measure is computed that is indicative of a variation of at least one of the amplitudes. The TA error is determined by correlating the first and second measures.

Abstract: A system and method for bridging user devices communicating according to a 3rd Generation (3G) communication protocol to a LTE wireless communication network, thereby enabling user devices that do not have sufficient signal strength for directly coupling to the LTE wireless communication network to nevertheless access such wireless communication systems and methods via a bridging system.

Abstract: A small form-factor pluggable (SFP) transceiver provided for being inserted into an electrical connection slot includes a housing, two electrical signal connectors, a circuit board, and two flexible assemblies. The housing defines an accommodating space. Each electrical signal connector has an inserting end arranged outside a front end of the housing and an opposite connecting end arranged in the accommodating space. The circuit board is fixed to the housing and is arranged in the accommodating space. Each flexible assembly has an end detachably connected to the circuit board and an opposite end detachably connected to the respective electrical signal connector. The SFP transceiver is configured to receive a signal, and the signal travels from the each electrical signal connector to the circuit board through the corresponding flexible assembly. Each flexible assembly, the corresponding electrical signal connector, and the circuit board are configured to be independently tested.

Abstract: Circuits, devices and methods for achieving fast changes in voltage regulator outputs are disclosed. In some embodiments, a voltage regulation system can include a voltage regulator configured to receive an input voltage Vin and generate an output voltage Vout at an output node, and a transition circuit coupled to the output node, the transition circuit including one or more voltage sources, each voltage source switchably coupled to the output node and configured to provide a respective voltage.

Abstract: Disclosed are a mobile terminal capable of implementing an always-on function with a lower power, based on a motion, and a motion-based low power implementing method thereof. The method includes sensing a motion of a user by using an acceleration sensor in a low-power always-on that only the acceleration sensor is activated; a selectively activating an always-on function according to the sensed motion and deactivating the always-on function when no motion is sensed in an always-on state and automatically entering to the low-power always-on function.

Abstract: Methods and systems for reducing and eliminating the effects of reference signal leakage in multi-module radio-frequency systems, particularly for radio-frequency integrated-circuit devices. Isolation is provided by frequency shifting, by binary phase-shift keying of reference signals to furnish different reference signals with unique signatures to enable separation and discrimination, and by backwards sending of reference signals from receiver to transmitter to avoid contamination of receiver signals by leakage of transmitter reference signals. In addition to improving calibration, methods of the present invention also provide noise reduction in certain multiple-module radio frequency systems.

Abstract: A method, network node, and user equipments for providing parameters to a first user equipment served by the network element, the parameters describing at least a second user equipment for the purpose of the first user equipment initiating a device to device proximity discovery service with the second user equipment, the method collecting information for user equipments desiring device to device proximity discovery; creating a candidate user equipment list for a candidate tier based on the collected information at the network element, wherein each candidate tier comprises one or more thresholds based on timing advance values in use at the first or the at least the second user equipment; and providing the parameters describing at least a second user equipment to the first user equipment.

Abstract: An inductive wireless power transfer device comprises a transmitter that comprises a transmit coil configured to generate a wireless power signal to a coupling region in response to an input voltage, and a modulator configured to modulate the wireless power signal and encode data with the wireless power signal to establish a back-channel communication link from the transmitter to a receiver. An inductive wireless power receiving device comprises a receiver that comprises a receive coil configured to generate a time varying signal in response to receiving a modulated wireless power signal from a transmitter in a coupling region, and a demodulator configured to demodulate the modulated wireless power signal from an established back-channel communication link from the transmitter to a receiver. Related inductive wireless power transfer systems and methods for back-channel communication from the transmitter to the receiver of an inductive wireless power transfer system are disclosed.

Abstract: The invention relates to a method for automatically adjusting one or more tunable passive antennas and a single-input-port and single-output-port tuning unit. The invention also relates to an apparatus for radio communication using this method, for instance a radio transceiver. An apparatus for radio communication of the invention comprises: a tunable passive antenna; a feeder; a single-input-port and single-output-port tuning unit having an input port and an output port; a sensing unit; a transmission and signal processing unit which applies an excitation to the input port, which delivers one or more antenna adjustment instructions, and which delivers one or more tuning unit adjustment instructions; and a control unit which delivers one or more antenna control signals to the tunable passive antenna, and one or more tuning control signals to the single-input-port and single-output-port tuning unit.

Abstract: Approaches, techniques, and mechanisms are disclosed for allowing multiple distinct and diverse wireless services (e.g., Wi-Fi, Bluetooth, Radio Frequency for Consumer Electronics (RF4CE), ZigBee, etc.) to share common frequencies while utilizing a single set of antennas. Among other potential benefits, the techniques may permit the sharing of common frequencies amongst multiple services with reduced (or no) interference amongst the services relative to conventional designs, which, depending on the embodiment, may increase performance, improving manufacturability, save design and material cost, and so forth. According to one embodiment, a multi-input directional coupler printed circuit may be implemented for multiple wireless services. This device may include a single directional coupler with reduced or no loss, placed in series with two combiners that provide high isolation for wireless signals.

Abstract: Embodiments of the system herein use a mobile device of a user to act as an onboard camera and capture video of the environment surrounding the user's vehicle and/or telematics data about the user's vehicle. The system can detect when a user has begun to operate the vehicle, for example based on mobile device power information and the proximity/connection of the mobile device to a device associated with the vehicle, and automatically begin onboard camera recording or prompt the user to begin onboard camera recording. The recorded videos and/or telematics data can be locally stored on the mobile device, or in some embodiments transferred to an outside server for storage.

Abstract: Provided is a method for forming a Wi-Fi Peer-to-Peer (P2P) group using Wi-Fi Direct. The method includes acquiring device information of other P2P device corresponding to a connection target by P2P devices that will form a Wi-Fi P2P group; checking a type of the other P2P devices based on the acquired device information; adjusting an intent value of a P2P device depending on the checked type of the other P2P devices; and forming a Wi-Fi P2P group based on the adjusted intent values of the P2P devices.