Shenzhen China Star Optoelectronics Technology Co., Ltd.

Hon Hai Precision Industry Co., Ltd.

Huawei Technologies Co., Limited

Leland Stanford Junior University

University of Toronto

Blinq Wireless Inc.

Samsung Electronics Co., Ltd.

Tsinghua University

Huawei Technologies Canada Co., Ltd.

Shenzhen Sunway Communication Co., Ltd.

Future Wei Technologies, Inc.

Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.

Foxconn Technology Co., Ltd.

Fu Zhun Precision Industry (shen Zhen) Co., Ltd.

Johnson Electric S.a.

Wei Yu

Yihong Qi

John Matthew Cioffi

Georgios Ginis

Chaohuang Zeng

Mohammadhadi Baligh

Taiwen Tang

Wen He

Jerry Chow

Hao-Yun Ma

Fan Zhang

Chang Yong Shin

Yun He

Lin Wang

Tae Soo Kwon

Kai Yang

Radu Bogdan Selea

Fujin Peng

Jianglei Ma

Peiying Zhu

Bo Lin

Lei Zhang

Jianhua Zheng

Kyung Hun Jang

Nick Lin

Yunfeng Sun

Liming Fang

Chan Soo Hwang

Jie Chen

Tao Zhang

Lei Wang

Bo Liu

Jong Bu Lim

Steve Andre Beaudin

Yi Lin

Dong Liu

Kuancheng Lee

Qunfang Lou

Jun Yuan

Huijun Liu

Penghui Shen

Hayssam Dahrouj

Jinfeng Lei

Haibo Xu

Jijun Wen

Xinjian Meng

Yuanyuan Nie

Ping Yang

Jin Zhao

Linjiang Cui

HaiJun Zhang

Yuhan Zhou

Shaohui Li

Longxian Zhang

Cheng-Hui Lin

Lo Ching Kwok

Gang Wei

Jing-Hao Li

Xue Bin Zhang

Jianhui Su

Qingchun Luo

Pengjie Xiao

Qingtian Xue

Min Wen

Chang Chengmr Lo

WeiFang Xi

Yijiang Hou

Seyed Arvin Ayoughi

XiaoLi Wu

Kaiming Shen

Reza Khosravi Farsani

Kefu Wang

HongJia Zhang

Weifang Xi

Hongjia Zhang

Hua-Yin Huang

Haibo Wang

XueBin Zhang

An auxiliary aiming device includes a main body, a digital sight with a digital rearsight, and a ballistic compensation system. The digital sight and the ballistic compensation system are arranged at the main body. The ballistic compensation system includes a range finder, a main control unit, an image processor, an image sensor and a display device. The range finder is configured to measure the target distance data of a shooting target and send the target distance data to the main control unit. The main control unit is configured to calculate a ballistic compensation based on the target distance data and a calibrated data scale, send the ballistic compensation to the image processor, and superimpose a recommended aiming position from the image processor onto a target image which is displayed on the display device. The image sensor is configured to obtain a target image.

Auxiliary aiming device

A method, an apparatus and a computer device for detecting an open circuit fault are provided. The sample data of the electrical signal at the primary side of the transformer in the CLLLC resonant bidirectional DC/DC converter is performed with spectrum analysis to obtain a first frequency, and whether an open circuit fault occurs in the CLLLC resonant bidirectional DC/DC converter can be determined according to the first frequency and an actual switching frequency.

Open-circuit fault detection method and apparatus, and computer device

Storage shelves

Embodiments of this application provide a data sending method, an apparatus, a device, and a readable storage medium. A server determines a first transmission point from a coordinated set, and determines a first downlink sending weight of the first transmission point. Then, the server determines a second downlink sending weight of a second transmission point based on the first downlink sending weight, and sends the second downlink sending weight to the second transmission point. When sending a data stream to an electronic device, the second transmission point determines a downlink sending weight corresponding to the data stream from a matrix, weights the data stream, and sends the weighted data stream to the electronic device.

Data sending method, apparatus, device, and readable storage medium

In the fault diagnosis method, apparatus, and computer device, the method includes acquiring line voltage values in real time according to a voltage collector connected to phase lines (S); according to the line voltage values and preset system parameters, obtaining a voltage peak balance degree and a phase angle offset of the three-phase power grid (S); and obtaining a fault diagnosis result according to the voltage peak balance degree and the phase angle offset (S). In such a way, a real-time diagnosis operation of whether a three-phase power grid is balanced can be implemented only by performing on-line calculation and analysis on line voltage values, which has simple analysis operation to reduce the system complexity; and only a voltage collector is added, and no other hardware costs are required, moreover high diagnosis reliability is obtained.

Fault diagnosis method for three-phase power grid, apparatus, and computer device

The present disclosure provides a method and system for testing wireless performance of a wireless terminal configured as a DUT having multiple transmitting antennas and placed in an anechoic chamber. The method includes: obtaining antenna pattern of the multiple transmitting antennas, and importing the antenna pattern into a channel emulator; selecting a same number of testing antennas in the anechoic chamber as a number of the transmitting antennas; the selected testing antennas receiving a signal from the transmitting antennas, and sending the signal to the channel emulator, the channel emulator processing the signal to generate an analog signal and sending the analog signal to an analog base station; and the analog base station receiving the analog signal and performing a throughput test to obtain an uplink wireless performance test of the DUT.

Method and system for testing wireless performance of wireless terminal

A method for testing radio frequency performance of a wireless device is provided. Power level reporting information of a device under test is obtained. A propagation matrix is obtained based on the power level reporting information. An inverse matrix is obtained based on the propagation matrix to form a virtual cable between an output port of an instrument and a receiver port of the device under test. A throughput test signal is transmitted through the virtual cable to perform a performance test on the device under test and to obtain a test result of the radio frequency performance.

Radio frequency performance testing method and apparatus of wireless device, and tester

The disclosure provides a method for measuring a power of a non-constant envelope modulated signal, an electronic device, and a computer readable storage medium. The method includes: sampling baseband I/Q data transmitted by a device under test to obtain sample data, in which a sampling duration is less than a length of a cycle of the non-constant envelope modulated signal; calculating a sample power within the sampling duration based on the sample data; matching in predetermined baseband I/Q data in the cycle based on the sample data to obtain a target baseband I/Q data segment; obtaining a power calibration value corresponding to the target baseband I/Q data segment; and obtaining an actual power of the non-constant envelope modulated signal in the cycle based on the power calibration value corresponding to the target baseband I/Q data segment and the sample power within the sampling duration.

Method for measuring power of non-constant envelope modulated signal, and electronic device

Disclosed are a method and apparatus for measuring wireless performance of a receiver of a wireless terminal, and a non-transitory computer readable storage medium. The method includes the following. A measured signal of a receiver to be measured is determined. Measured signals of other receivers except the receiver to be measured are zero. Multiple transmitted signals are determined based on the measured signals. The multiple transmitted signals are transmitted through multiple measurement antennas. When a bit error rate of the receiver to be measured does not equal a preset bit error rate, the measured signal is adjusted, determining the multiple transmitted signals based on the updated measured signal. When the bit error rate equals the preset error rate, a power of the measured signal is determined as the radiant sensitivity of the receiver to be measured.

Method and apparatus for measuring wireless performance of receiver of wireless terminal

The present disclosure provides a method and a device for measuring a radiation pattern of an antenna array. The method includes: obtaining a plurality of array radiation patterns corresponding to a plurality of array elements and a plurality of center positions corresponding to the plurality of array radiation patterns; feeding a preset port excitation to the antenna array; obtaining a plurality of sets of measurement data of the antenna array at a plurality of corresponding measurement points in a far field of the antenna array; obtaining an aperture field excitation based on the plurality of array radiation patterns, the plurality of center positions, positions of the plurality of measurement points and the plurality of sets of measurement data; and obtaining a radiation pattern of the antenna array at a target position based on the aperture field excitation, the plurality of array radiation patterns and the plurality of center positions.

Method and device for measuring radiation pattern of antenna array, and computer readable storage medium

Disclosed is a method for producing algae-derived polyunsaturated fatty acids, comprising the steps of a) contacting dry algae with ethanol; b) removing ethanol to obtain crude oil; c) subjecting the crude oil to a transesterification reaction with a lower alcohol to generate fatty acid alkyl esters; d) extracting the fatty acid alkyl esters to result in a phase containing fatty acid alkyl esters; e) collecting the phase containing fatty acid alkyl esters; and f) contacting the collected phase with silica gel. Also disclosed is a method for effectively removing impurities, including chlorophyll, fucoxanthin and beta-carotene, from crude algal fatty acid alkyl esters, comprising contacting the crude algal fatty acid alkyl esters with silica gel in hexane.

Production of algae-derived polyunsaturated fatty acids

Methods for harvesting microalgae, comprise providing water containing microalgae, providing flocculant in an amount to form flocs of microalgae when mixed with the water, generating a mixture of the water and the flocculant and separating the flocs from the mixture.

Methods for harvesting microalgae

A microgrid system and method of controlling same, the microgrid system comprising a storage battery (), an energy storage converter (), a monitoring circuit and a controllable switch (). When the microgrid system is in grid-connected mode, the energy storage converter outputs steady power under the control of an inner current loop unit (); in grid-connected mode, an outer voltage loop unit () does not participate in control, but remains in an operating state, and on the basis of four outer voltage loop unit input signals, estimates in advance a specified current loop signal (U) for handover from grid-connected mode to island mode. When the microgrid system hands over from grid-connected mode to island mode, the outer voltage loop unit goes into operation, and the inner current loop unit controls a steady output voltage and frequency from the energy storage converter according to the pre-estimated specified current loop signal output by the outer voltage loop unit. The outer voltage loop unit controls the outputted specified current loop signal to be identical before and after mode handover, and can realize seamless handover between grid-connected and island modes for the microgrid system.

Microgrid system and method of controlling same

In accordance to embodiments, a base station may transmit to a first user equipment (UE) a downlink control information (DCI) message for uplink (UL) scheduling of a second UE. The DCI message may indicate resources for sending a UL message by the second UE to the base station such that the first UE can at least partially decode the UL message based on the information in the DCI message. The base station may receive the UL message from the second UE. The base station may send a downlink (DL) message to the first UE. The UL message and the DL message may overlap at least partially in time and frequency. If the DL UE cannot successfully decode the UL message, the base station may send a helper message for the UL message to help the DL to decode the UL message.

Full-duplex assisted communications with interference mitigation

Control of a digital communication system having a plurality of communication lines on which signals are transmitted and received is implemented using a variety of methods and systems. According to one embodiment of the present invention, a method is implemented where the signals are affected by interference during transmission and each of the communication lines has at least one transmitter and at least one receiver. A model is created of the interference characteristics due to the signals carried on the communication lines. Interference characteristics for a line are determined based on the model and actual signals carried on other communication lines different from the line for which the characteristics are being determined. Actual interference is compensated for on the communication line using the determined interference characteristics.

Dynamic digital communication system control

Growing community of inventors

Shenzhen, China

Wei Yu