Abstract: A communication apparatus includes a wireless module configured to execute communication with a communication terminal; a host system including a communication controller configured to control the communication with the communication terminal executed by the wireless module; an updater configured to update information used for the communication, at predetermined updating timings; and an operation status controller configured to control an operation state. The communication apparatus further includes a sub-system configured to send, to the operation status controller, a report indicating that an updating time period has elapsed from the updating timing of the information. The operation status controller causes the host system to return to a regular mode, upon receiving the report indicating that the updating time period has elapsed while the host system is in an energy saving mode.

Abstract: The present invention relates to a mobile phone holder including a base, the holder: providing a flexible sheet and a sliding device so as to allow the fingers to pass through the arch-shaped flexible sheet during one-handed operations; making one-handed operations easier so as to prevent the mobile phone from dropping during one-handed operations; and allowing the height of the flexible sheet provided in an arch shape to be adjusted, thereby enabling the mobile phone to be put directly on a loading surface and allowing a user to freely use both hands.

Abstract: A method for determining a calibration parameter of a zero intermediate frequency radio receiver, and a zero intermediate frequency radio receiver are provided. The method includes: obtaining a plurality of sub-band training signals, where a sum of the plurality of sub-band training signals is a fullband training signal; determining a sub-band calibration parameter corresponding to each of the plurality of sub-band training signals; determining a fullband calibration signal according to the plurality of sub-band training signals and the sub-band calibration parameter corresponding to each of the plurality of sub-band training signals; and performing coefficient fitting on the fullband training signal and the fullband calibration signal, to determine a fullband calibration parameter. Because sub-band calibration parameters are obtained according to a plurality of different sub-band training signals, aliasing between an image signal and a training signal is reduced.

Abstract: A bar-type mobile terminal can include antennas configured to transmit and receive radio signals; a metallic frame having a front side and a rear side, the metallic frame including an edge portion forming an appearance of the bar-type mobile terminal, an upper through hole, and a lower through hole; an upper non-metallic coupling disposed in the upper through hole of the metallic frame; a lower non-metallic coupling disposed in the lower through hole of the metallic frame; a window disposed on the front side of the metallic frame; a cover disposed on the rear side of the metallic frame; a printed circuit board including electronic devices; a display unit disposed between the window and the front side of the metallic frame; a first waterproof layer disposed between the window and the edge portion; and a second waterproof layer disposed between the cover and the edge portion of the metallic frame.

Abstract: A communication device may, in response to a wireless link via the first wireless interface being established with a terminal device while the communication device is a parent station state, receive a predetermined signal from the terminal device via the second wireless interface. If the predetermined signal is received from the terminal device, shifting communication device from the parent station state to a specific state where the communication device does not operate as a parent station. The communication device is maintained in the parent station state if the predetermined signal is not received from the terminal device even if the wireless link via the first wireless interface has been established with the terminal device. After shifting the communication device to the specific state, establishing a first wireless connection via the second wireless interface with the terminal device so as to participate in a second wireless network as a child station.

Abstract: Wireless power is provided to a WPP-compliant wireless device by generating a first radio frequency (RF) signal at a first frequency. The transmitter circuit is inductively coupled to the compliant wireless device using the first RF signal. A second RF signal is generated at a second frequency. The presence of a WPP-noncompliant wireless device is detected by detecting a third RF signal at a third frequency that is a harmonic of the second frequency. The non-compliant wireless device is protected by reducing, in response to detecting the third RF signal, a signal strength for the first RF signal.

Abstract: Systems and techniques are described for mitigating interference in wireless communication devices. In various examples, a device may determine a first energy level of a first received wireless signal and may determine that the first energy level is above a first threshold. The device may attenuate the first received wireless signal by a first amount. The device may filter the first received wireless signal with a band pass filter with a first passband frequency range. The device may be effective to program the band pass filter with the first passband frequency range based on the detected first energy level exceeding the first threshold.

Abstract: A front-end module includes a duplexer, a band pass filter, and a terminating circuit element. A first signal path connects an output terminal of a power amplifier and a transmit node of the duplexer. The band pass filter is disposed on a second signal path between a branch point and a ground. The second signal path branches off from the first signal path at the branch point. The band pass filter has frequency characteristics in which, among frequency components of a transmit signal output from the power amplifier, frequency components that overlap at least part of the pass band of a receive filter of the duplexer are allowed to pass through the band pass filter. The terminating circuit element is disposed on the second signal path between the band pass filter and the ground. The terminating circuit element attenuates a transmit signal passing through the band pass filter.

Abstract: A connector assembly having two ends respectively connected to a case and a main circuit board comprises a bracket, a bottom plate assembled on the bottom of the bracket and a flexible circuit board located between the bracket and the bottom plate. The bracket includes a mating surface attached to the case, a mounting surface opposite the mating surface, and a receiving cavity recessed inwardly from the mounting surface. The bracket includes a pair of openings extending through the mating surface thereof and communicating with the receiving cavity. A pair of chip modules are disposed on the flexible circuit board corresponding to the openings. One side of the flexible circuit board, which is farther away from the bracket, includes an electrical connector for mating with the main circuit board.

Abstract: A linearization circuit reduces intermodulation distortion in an amplifier that includes a first stage and a second stage. The linearization circuit receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency, generates an envelope signal based at least in part on a power level of the first signal, and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal, the first stage receives the adjusted signal, and the second stage does not receive the adjusted signal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation between the first frequency and the second frequency from the output of the amplifier.

Abstract: An information service provides search and notifications to inform when certain people (e.g., friends, family, business contacts, etc.) are nearby so as to facilitate communications with those people. Users may define lists of people whose locations may be tracked by positioning equipment based on personal communications/computing devices carried by the people. The information service processes this people and place data to identify those of the listed people that are in the user's vicinity, and provide notifications and user-initiated search results informing the user such as via the user's personal communications/computing device.

Abstract: A profile switching method and a terminal, where the method includes sending, by a terminal, an enable instruction to an embedded universal integrated circuit card (eUICC), where the eUICC includes at least a first profile and a second profile, the terminal has accessed a network using the first profile, data of the first profile is stored in a cache of the terminal, and the enable instruction instructs the eUICC to disable the first profile and enable the second profile, and send a first instruction to the terminal, where the first instruction instructs the terminal not to restart the eUICC, and after receiving the first instruction, retaining, by the terminal, the data of the first profile in the cache, storing data of the second profile in the cache, and accessing a network using the second profile.

Abstract: A wireless communication system includes a first antenna, a second antenna with an orientation relative to the first antenna that is changeable around a predetermined axis, and a communication control unit that controls wireless communication based on electric field coupling between the first antenna and the second antenna. The first antenna includes a first electrode including a bored portion, where the predetermined axis passes through an inside of the bored portion. The first antenna also includes a second electrode located inside the bored portion The second antenna includes a third electrode that transmits an electric signal between the first electrode and the third electrode and a fourth electrode that transmits an electric signal between the second electrode and the fourth electrode.

Abstract: A mobile terminal and an antenna determining method are provided. The mobile terminal includes a housing, a processor, at least two antennas and at least two pressure sensors. The pressure sensors are configured to acquire values of pressures applied to a surface of the housing and send the acquired pressure values to the processor; the processor is configured to receive pressure values sent by the pressure sensors, to determine at least one contact position between a user and the mobile terminal based on pressure values sent by at least one of one or more first side pressure sensors and at least one of one or more second side pressure sensors, to determine an antenna to receive or send signals from the at least two antennas based on the at least one contact position.

Abstract: An analog receiver frontend includes a first amplification circuit coupled to receive an input signal. The first amplification stage is coupled to amplify a difference between the input signal and a threshold to generate the first signal. A second amplification circuit is coupled to receive the first signal from the first amplification circuit. The second amplification circuit is coupled to amplify the first signal to generate a second signal. An output circuit is coupled to receive the second signal from the second amplification circuit. The output circuit is coupled to output a recovered signal. The recovered signal is a pulse waveform of high and low sections. An input hysteresis circuit is coupled to the output circuit to receive the recovered signal and generate a hysteresis signal. One or both of the input signal and the threshold are level shifted by the hysteresis signal in response to the recovered signal.

Abstract: This disclosure provides a microwave radio transmitter for radio transmission to a microwave radio receiver. The microwave radio transmitter comprises an antenna arrangement and a baseband processing module connected to the antenna arrangement. The antenna arrangement comprises an antenna having a polarization. The baseband processing module is configured to receive a polarization misalignment indication from the microwave radio receiver. The polarization misalignment indication is indicative of a misalignment between the polarization of the antenna and a corresponding polarization of a receive antenna comprised in the microwave radio receiver. The baseband processing module is configured to compensate for polarization misalignment between the antenna and the receive antenna by adjusting the radio transmission based on the polarization misalignment indication.

Abstract: A transmission apparatus includes a communication unit, including input/output terminals and two coupling electrodes. An input/output circuit of the communication unit is configured to function interchangeably. The two coupling electrodes are arranged along the longitudinal direction of the transmission medium, when coupled to the transmission medium. When the length from one coupling electrode of the two coupling electrodes to one end of the transmission medium in the longitudinal direction thereof is an electrical length in a range of (2n·90±45)° of the electrical signal and the length from another coupling electrode of the two coupling electrodes to another end of the transmission medium in the longitudinal direction thereof is an electrical length in a range of ((2n+1)·90±45)° of the electrical signal while the two coupling electrodes are coupled to the transmission medium, the communication unit transmits and receives the electrical signal to and from another transmission apparatus.

Abstract: A radio communication device is provided with a VOX function. A reception completion state determination unit determines whether or not a reception unit is in a state of completing reception. A timer starts to measure a predetermined time when the reception completion state determination unit determines that the reception unit is in the state of completing the reception. A VOX level selection unit sets a VOX level at which the VOX function determines that transmission is made to a first VOX level after the timer finishes measuring the predetermined time, and sets the VOX level to a second VOX level smaller than the first VOX level while the timer is measuring the predetermined time.

Abstract: A linearization circuit that reduces intermodulation distortion in an amplifier output receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency. The linearization circuit generates an envelope signal based at least in part on a power level of the first signal and adjusts a magnitude of the difference signal based on the envelope signal. When the amplifier receives the first signal at an input terminal and the adjusted signal at a second terminal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation products that result from the intermodulation of the first frequency and the second frequency.

Abstract: A transmission apparatus (10) includes a communication device (30), comprising two input/output terminals (20a, 20b), and a terminal line (40) connected to the first input/output terminal (20a) and having an electrical length of substantially 90°. By the second input/output terminal (20b) electrically coupling with a transmission medium (50) comprising a conductor or a dielectric, a high frequency signal or electric power is transmitted to another transmission apparatus coupled electrically to the transmission medium (50).