Huawei Technologies Co., Limited

Shenzhen China Star Optoelectronics Technology Co., Ltd.

Tianma Micro-electronics Co., Ltd.

Shanghai Avic Opto Electronics Co., Ltd.

Tencent Technology (shenzhen) Company Limited

Sz Dji Technology Co., Ltd.

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

Chongqing University of Posts and Telecommunications

O-net Communications (shenzhen) Limited

Weiwei Zhang

Rui Xu

Li Wei Wang

Jingming Wu

Hongqing Huang

Xiaobo He

Honghui Zhu

Jun Li

Tianxiang Wang

Xu Li

Meilin Wang

Zhongyu Qin

Yibo Lv

Guoliang Nie

Rongdao Yu

Hongyuan Xu

Yu Huang

Jun Huang

Dongyu Geng

Zeqin Wang

Jungmao Tsai

Junjie Huang

Hong Xie

Huifang Duan

Jiabin Liang

Sheng Huang

Quan Liu

Xueli Ao

Kaiqiang Deng

Yinzhuo Wang

Bofang Zheng

Zhangqun Fan

Li Guo

Dongming Su

Jiaojiao Shi

Junwei Ge

Qingling Wang

Yuyan Cui

A signal receiving apparatus and method are provided. When a baseband signal is restored, an orthogonal polarization state of light does not need to be precisely controlled. This is easy to implement and can reduce system costs. The apparatus includes an optical splitter configured to split a first polarization multiplexing optical signal into at least two second polarization multiplexing optical signals, and input the two second polarization multiplexing optical signals into at least two optical signal processing modules. An optical signal processing module is configured to couple the second polarization multiplexing optical signal, and input a coupled optical signal to a photoelectric detector configured to convert the coupled optical signal into an analog signal. An analog-to-digital converter is configured to convert the analog signal into a digital signal, and input the digital signal to a digital signal processor configured to process the digital signal to obtain a baseband signal.

Signal receiving apparatus and method

A radio over fiber (RoF) system and a nonlinear compensation method, where the RoF system includes a BBU and an RRU, the RRU includes an electrical component, and the BBU includes a downlink and a feedback link. A predistortion module and an optical component are disposed on the downlink, an input end of the feedback link is connected to an output end of the optical component, and the feedback link is configured to feed back, to the predistortion module, a nonlinear signal output by the optical component. The RoF system further includes a temperature detection module configured to detect a temperature value of the electrical component, and transmit the temperature value to the predistortion module. The predistortion module is configured to perform digital predistortion DPD on a baseband signal based on the temperature value and the nonlinear signal.

Radio over fiber system and nonlinear compensation method

This application provides decompression circuits. An example decompression circuit includes a plurality of sub-circuits. The sub-circuit includes a plurality of cellular automaton (CA) circuits and a phase shifter. Each of the plurality of CA circuits includes a first XOR circuit and a register. The first XOR circuit includes a first input end, a second input end, and an output end. A data input end of the register is coupled to the output end of the first XOR circuit. A data output end of the register is coupled to the first input end of the first XOR circuit and an input end of the phase shifter. The data output end of the register is further coupled to the second input end of the first XOR circuit in a different CA circuit. The phase shifter is configured to output a test signal.

Decompression circuit, circuit generation method, and IC chip

A control method and device for an unmanned aerial vehicle, and a non-transitory computer readable storage medium are provided. The control method may include: acquiring shooting control information, the shooting control information including a height of a shooting target object, a mission height, and an overlapping ratio; determining the target flight route and a shooting interval based upon the shooting control information; and controlling an unmanned aerial vehicle to fly according to the target flight route and to photograph the shooting target object according to the shooting interval by using a photographing device during the flight. The mission height may be a distance between a plane where a target flight route is located and a plane where the shooting target object is located, and a starting plane for computing the overlapping ratio may be the plane where the shooting target is located.

Control method and device for unmanned aerial vehicle, and computer readable storage medium

An array substrate and a display panel are provided. The array substrate includes a plurality of data lines and scan lines intersecting to form a plurality of subpixel units. Each of the subpixel units includes a substrate, a common electrode layer, and an active layer. The active layer includes at least a first active layer and at least a second active layer. The first active layer is located in a thin-film transistor included in the array substrate, and at least one of the second active layers is not located at a position where the common electrode layer and the data line overlap.

Array substrate and display panel

A driving circuit, an array substrate and a display device are provided. The driving circuit includes a plurality of cascaded shift registers. Each shift register includes a plurality of transistors and at least one capacitor, and a channel width-to-length ratio of at least one transistor is determined by a preset number of pixels in a pixel row driven by the corresponding shift register.

Driving circuit, array substrate and display device

Aspects of the disclosure provide a method for display control. The method includes capturing, by a camera in a terminal device that is in use by a user, a first face image and a second face image of the user, extracting a first face fiducial of a characteristic point on a face of the user from the first face image and a second face fiducial of the characteristic point on the face of the user from the second face image, determining a face location offset value based on the first face fiducial and the second face fiducial, determining, based on the face location offset value, a display location offset value of content to be displayed on a display screen of the terminal device, and performing a display control of the content on the display screen according to the display location offset value.

Display control method and apparatus

A time check method and a base station are provided. The base station receives an authentication interaction message sent by an authentication interaction device; extracts time information in the authentication interaction message; and uses the time information to check local time. Before an Internet Key Exchange (IKE) connection is set up between the base station and a security gateway, relatively accurate time is obtained from an external authentication interaction device and is used for aligning the local time. Therefore, the cost of installing a clock component and a battery is saved, the time on the base station is trustworthy, and the security gateway is authenticated securely.

Time check method and base station

A device and method for measuring concentration of etchant, the device comprises a concentration measuring mechanism and an acid mist elimination mechanism connected with the concentration measuring mechanism, the acid mist elimination mechanism is configured to eliminate acid mist inside the concentration measuring mechanism, and the concentration measuring mechanism is configured to receive etchant in real time, measure absorbance of each kind of acid of the etchant in a non-acid mist environment, and calculate concentration of each kind of acid of the etchant according to the absorbance. It can overcome the interference of the acid mist on concentration measurement of the acid of the acid mixture etchant. In this way, the concentration of each kind of acid of the acid mixture etchant can be online measured rapidly and accurately, and the desiccative gas can be recycled, which achieves the effect of resource conservation.

Device and method for measuring concentration of etchant

An array substrate and a display panel are provided. The array substrate includes a non-display region and a display region including a plurality of pixel unit rows arranged in a first direction and extended in a second direction. Each pixel unit row includes at least one first-pixel unit having a first width in the first direction and a second width in the second direction. At least one pixel unit row includes at least one second-pixel unit having a third width in the first direction and a fourth width in the second direction, and the at least one second-pixel unit is disposed at one end or both ends of the pixel unit row. The second width is larger than or equal to the fourth width.

Array substrate and display panel thereof

A cleaning equipment of sample bottle for chromatography analysis comprising: a base; a support frame vertically fixed to the base; a horizontal column having two ends, wherein one of the ends is disposed at the support frame through an adjustment knob; a rotary drive device fixed to the other end of the horizontal columns; a rotation disk which can rotate through driving of the rotary drive device, and a side edge of the rotation disk provides with multiple placing holes for receiving and fixing sample bottles; a cleaning agent recycling tank disposed below the rotation disk, wherein a side wall of it provides with an ejector pipe connected with a water pump; and a control unit for controlling on/off and rotation speed of the rotary drive device, and on/off of the water pump. The invention also provides a cleaning method of sample bottle for chromatography analysis.

Cleaning equipment of sample bottle for chromatography analysis and cleaning method thereof

The present invention provides a base film of modified polyvinyl alcohol as well as a method for preparing the base film of modified polyvinyl alcohol and a polarizer made from the base film. The method includes steps of: (1) executing surface graft modification of nano-silicon dioxide particles with fluorinated silane to obtain a modified nano-silicon dioxide powder; (2) adding the modified nano-silicon dioxide powder obtained from the step (1) to an aqueous solution of polyvinyl alcohol polymer, in order to prepare a composite solution of polyvinyl alcohol polymer; and (3) pouring the composite solution of polyvinyl alcohol polymer prepared from the step (2) onto a surface of a casting substrate to obtain a base film of modified polyvinyl alcohol (PVA). The present invention enhances the heat and humidity resistances and the stability of the PVA base film, and improves its mechanical performance and sticking-resistance.

Method for preparing a base film of modified polyvinyl alcohol polymer

The present application relates to a colorimeter measurement method and a colorimeter for implementing the method. The method includes the following steps: placing a measured sample on a sample platform; shooting a current image of the sample; determining an intersection angle &#x3b8; between the sample and a moving direction of the sample platform; adjusting a position of a scanning light spot of a colorimeter according to the angle &#x3b8;, so that the sample coincides with the moving direction of the sample platform; using the colorimeter to scan the measured sample. By implementing the colorimeter measurement method and the colorimeter of the present application, the sample can be placed optionally when it is measured. Specially, when a design value of a measured sample is approximately equal to a size of the measuring light spot, much time can be saved and manpower waste is avoided.

Colorimeter measurement method and colorimeter for implementing the method

The present invention discloses a pixel unit, a pixel array structure and a display device, to solve the problem that horizontal stripes may occur between adjacent rows in a conventional pseudo dual-domain pixel display. The pixel unit of the present invention comprises a first pixel unit and a second pixel unit arranged adjacent to each other and have a shape of a parallelogram. A long edge direction of the first pixel unit is consistent with a short edge direction of the second pixel unit, or a short edge direction of the first pixel unit is consistent with a long edge direction of the second pixel unit. The first pixel unit and the second pixel unit are driven by different thin film transistors, so that electrode domain inclination directions of the pixel units in adjacent rows are alternate to avoid the occurrence of horizontal stripes when the pseudo dual-domain display is performed.

Pixel unit, pixel array structure and display device

Growing community of inventors

Shenzhen, China

Weiwei Zhang