Abstract: A determiner determines that the voice communication frequency of the voice band to be used by a subject station for a voice communication with a distant station is permitted to be changed to the voice communication frequency of a selected distant station, the voice communication frequency of the selected distant station being included in predetermined information disclosed by the selected distant station, when the predetermined information satisfies a predetermined condition set in the subject station. When an instruction to change the voice communication frequency to the voice communication frequency of the selected distant station is issued, a frequency change controller performs a control to change the voice communication frequency if the determiner determines that the voice communication frequency is permitted to be changed.

Abstract: A water-proof module including a covering structure and a switch component is provided. The covering structure includes an appearance surface and is adapted to be disposed on a casing. The switch component is rotatably disposed in the covering structure and includes at least one through hole. The through hole includes two ends opposite to each other. The switch component is adapted to rotate in the covering structure to a connect state such that the two ends are aligned with the appearance surface and an electrical element inside the casing respectively, and the through hole is connected between the appearance surface and the electrical element. The switch component is adapted to rotate in the covering structure to a water-proof state such that the two ends are misaligned with the appearance surface and the electrical element and the switch component obstructs a path between the appearance surface and the electrical element.

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: Embodiments herein include a method of controlling the total power with which a radio transmitter of a radio access node transmits a signal. The method entails inputting an input signal into a power amplifier of the radio transmitter to produce, as a function of the input signal, an output signal to be transmitted by the radio transmitter. The method further entails generating a feedback signal from the output signal at the radio transmitter, and measuring that feedback signal to obtain one or more performance metrics that characterize performance of the output signal. The method finally includes comparing the one or more performance metrics to one or more performance metric thresholds, and controlling a maximum permissible level of the total power of the input signal, based on that comparison.

Abstract: An electrical accessory for use with a portable electronic device and with a protective cover for the portable electronic device is provided. The electrical accessory includes a body, an electrical connector, and electrical circuitry. The body includes a back portion and a bottom portion. The back portion is slidably attachable to the back of the protective cover to removably affix the electrical accessory to the back of the protective cover. The bottom portion is adapted to be proximate the bottom of the protective cover when the electrical accessory is removably affixed to the protective cover. The electrical connector is affixed to the bottom portion of the body of the electrical accessory. The electrical connector is positioned to electrically interconnect to an electrical port of the portable electronic device when the electrical accessory is affixed to the protective cover and when the portable electronic device is installed in the protective cover.

Abstract: The present invention relates to a frequency region equalization method and an apparatus therefor in a cellular environment on the basis of a QAM-FBMC system. A method for receiving a signal by a receiver according to one embodiment of the present invention may include: performing channel estimation; comparing a minimum channel gain with a predetermined first threshold value; and performing layered detection when the minimum channel gain is smaller than the first threshold value. According to one embodiment of the present invention, a gain can be acquired in terms of a BER even while a structure of a symbol level equalizer is maintained.

Abstract: A system for tuning an impedance network for optimal signal strength is disclosed. The system includes a test tone generator, a radio frequency (RF) receiver, a received signal strength indicator (RSSI) coupled to the RF receiver and a controller coupled to the RSSI. The controller is configured to output a control signal based on a RSSI value measured by the RSSI.

Abstract: Disclosed is a mobile phone cover, comprising a protective plate, a middle frame body and a flexible rubber bottom cap, wherein the protective plate is sealed above the middle frame body; the middle frame body comprises a hard rubber frame, a flexible rubber frame and a shockproof belt; the flexible rubber frame is disposed on the outer sides of the hard rubber frame; the shockproof belt is disposed on the inner sides of the hard rubber frame and partly penetrates the hard rubber frame to be connected and fixed with flexible rubber frame; the hard rubber frame partly extends outs of the outer sides of the flexible rubber frame and forms an anti-skidding belt; and the flexible rubber bottom cap is provided with a sealing groove matched with the sealing flange. The present invention has waterproof, dust-proof and shockproof functions, and has a feature of high stability.

Abstract: An n input, radio frequency (RF) signal matrix is formed of a plurality of two-to-one RF signal routing units each including first, second, and third switching units selectively connecting either a first input to an output via a bypass conductive path while electrically isolating first and second signal combining conductive paths from the output or first and second inputs to the output via first and second signal combining conductive paths while electrically isolating the bypass conductive path from the output. The RF signal routing units are connected in at least two levels with outputs from a first level connected to inputs for a second level to form the n inputs for the RF signal matrix. Any number of the n inputs may be employed without unused inputs loading the output.

Abstract: In an embodiment, a radio communication device may be provided. The radio communication device may include a first receiver configured to receive from a first cell first data representing a content encoded using a first codec; a second receiver configured to receive from a second cell second data representing the content encoded using a second codec; and a combiner configured to combine the first data and the second data.

Abstract: Mount for an access point and an antenna includes a base for attachment to a support structure, the base for attaching thereto an access point; and a tray pivotably attached to the base, the tray for attaching thereto an antenna. The tray is disposed above the base and the tray is positionable at an angle relative to a reference plane.

Abstract: An RF receiver comprising: an RF signal processing unit for receiving an RF signal, wherein the RF signal processing unit comprises a dynamically reconfigurable RF filter for filtering the RF signal; an analog-to-digital converter for converting the filtered RF signal to a digital signal; and a digital signal processing unit for processing the digital signal to provide at least one channel; wherein the digital signal processing unit is adapted to adjust a respective transfer function of at least one said channel when the RF filter is reconfigured, to at least partially compensate a change in the transfer function of the RF filter.

Abstract: A computing device and method for remotely waking sleeping subsystems of the computing device are disclosed. The method includes monitoring a plurality of hardware subsystems on the computing device to detect when at least one of the hardware subsystems goes into an idle state and initiating a remote-start advertisement in response to the at least one of the hardware subsystems going into an idle state. A wireless low energy module of the computing device is monitored for a remote start signal from a remote device, and the at least one of the hardware subsystems that is in an idle state is powered up in response to receiving a remote start signal from a remote device. The remote-start advertisement is then ended in response to the at least one of the hardware subsystems powering up.

Abstract: Mount for an access point and an antenna includes a base for attachment to a mounting structure, the base for attaching thereto an access point; and a tray pivotably attached to the base, the tray for attaching thereto an antenna. The tray is disposed above the base and the tray is positionable at an angle relative to a reference plane.

Abstract: Apparatus and methods for envelope shaping in power amplifier systems are provided. In certain implementations, a power amplifier system includes a modulator for generating a RF signal, a power amplifier for amplifying the RF signal, a gain control circuit for controlling the gain of the power amplifier, and an envelope tracking system for controlling a voltage level of the power amplifier's supply voltage based on an envelope signal corresponding to the RF signal's envelope. The gain control circuit includes a gain adjustment table, and the envelope tracking system includes an envelope shaping circuit including an isodistortion table. The isodistortion table can be used to map the envelope signal to a shaped envelope signal so as to maintain a substantially constant distortion in the system's transmit and/or receive bands across the envelope signal's range.

Abstract: Systems and methods for modulating a telepowering signal in a downlink communication. Embodiments of the present invention provide a fingerprint module to generate a fingerprint signal that can be modulated with a telepowering signal for communication by a transmission module in a downlink communication. The fingerprint signal is reflected by a wayside equipment module and received by the transmission module to enable an additional communication other than the downlink communication and an uplink communication.

Abstract: A method for providing a cognitive alert control framework for a mobile device, wherein the mobile device includes an alert mechanism is provided. The method may include detecting, by a processor, a call being initiated by a caller using a first mobile device to a recipient using a second mobile device. The method may also include determining a cognitive state of the caller. The method may further include determining a cognitive state of the recipient. The method may include analyzing a relationship between the caller and the recipient based on the determined cognitive state of the caller and the determined cognitive state of the recipient. The method may also include determining a level of alert associated with second mobile device based on the analyzed relationship. The method may include invoking a ringtone characteristic on the second mobile device based on the determined level of alert.

Abstract: A system for transmitting signals, including a device for transmitting data between a movable and stationary portion of a windmill, to be installed on either portion, and including: connection elements for connecting at least one wireline to a plurality of groups to receive a plurality of respective data flows, each flow coming from a corresponding apparatus installed on the mobile portion or stationary portion; elements for processing the received streams, configured to assign a priority parameter value to each received stream, and in the event of concomitant reception of multiple streams, to compare the values of the priority parameter that are associated with the received streams and transmit by priority to a module for transceiving the radiofrequency signals, with a view to a radiofrequency transmission to the other of mobile or stationary portion, the stream associated with the value of the priority parameter corresponding to the highest degree of priority.

Abstract: In one implementation, a voltage boost assembly including a boost converter having a capacitive element arranged at an output, and an inductive element connectable to an electrical supply. The voltage boost assembly also includes a sensor assembly provided to generate a quick-start enable signal in response to detecting that an electrical condition relative to an electrical output of the boost converter has breached a first threshold. The voltage boost assembly further includes a quick-start module responsive to the quick-start enable signal, and configured to drive the boost converter at a relatively high duty-cycle and so that the boost converter delivers an output current that satisfies a second threshold in order to charge the capacitive element arranged at the output.

Abstract: Apparatus and methods for analog-to-digital conversion of quadrature receive signals are provided herein. In certain implementations, a transceiver system includes at least a first pair of analog-to-digital converters (ADCs) associated with a first quadrature receiver channel and a second pair of ADCs associated with a second quadrature receiver channel. The first and second pairs of ADCs can provide analog-to-digital conversion of the same receive signal, but can have different noise profiles relative to one another, such as a low pass noise profile and a band pass noise profile. The transceiver system can further include a reconstruction filter for combining the outputs of at least the first and second pairs of ADCs to generate output signals associated with a lower overall noise profile relative to that of either pair of ADCs alone.