Huawei Technologies Co., Limited

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

Tencent America LLC

Zte Corporation

Shenzhen Mindray Bio-medical Electronics Co., Ltd.

Shaanxi University of Science and Technology

Mgi Tech Co., Ltd.

Shenzhen Mindray Scientific Co., Ltd.

Tencent Technology (shenzhen) Company Limited

Chinese Academy of Sciences

Shenzhen Goodix Technology Co., Ltd.

Honor Device Co., Ltd.

Huawei Digital Power Technologies Co., Ltd.

Xi'an Jiaotong University

Schneider Electric (australia) Pty Ltd

Bo Wang

Fanglu Lyu

Songrun Liu

Lei Li

Lei Zhu

Jun Zhao

He Huang

Radoje Drmanac

Hui Fu Jiang

Wenwei Zhang

Li Chen

Hua Zhang

Jinfeng Liu

Xin Zhao

Yong Yang

Senbao Guo

Yu Liu

Dong Wang

Haiyang Sun

Jing Liu

Ming Gong

Cong Wang

Li Zhu

Hui Ma

Wei Zhang

Longfei Cong

Yuan Jiang

Xia Zhao

Tianshu Zhang

Ke Sun

Bing Wang

Yonggang Wang

Jianjun Yang

Dahai Zhang

Jie Zou

Chunhui Zhu

Gongbin Tang

Xingxin Zhang

Qi Liu

Qilian Du

Chaojun Deng

Wenxin Wu

Yinzhong Tang

Jiayin Lu

Huan Liu

Ken Chin

Xiuping Jiang

Wu Li

Yinjun Han

Feng Tang

Yaofeng Tu

Chunhui Le

Peiguo Liu

Zhenhua Zhang

Xiaolei Shan

Bo Yang

Yue Qin

Fengxian Li

Chunying Li

Yunsheng Wen

Jian Lu

Jian Lv

Jixian Dong

Yongmei Du

Sheng Han

Wenbin Sun

Lanping Gong

Yuanyuan Li

Qiaoling Li

Zhengxing Wang

Shijun Wang

Tao Li

Zhi Li

Delong Tang

Yu Cheng

Zhijun Hao

RuiBin Huang

Lihua Wu

Shiquan Wu

Guibao Li

Wei Mao

Xiya Guo

Hong Gao

Zhongshan Tian

Zhicheng Yang

Xiaohua Hu

Sunjie Wang

Bingrui Chen

Jian Zhao

Xufeng Chen

Qiaoming Zhang

Liangyun Kang

Guoqi Yan

Changqun Yang

Qingyong Chen

Xin Fan

Jie Fang

Miao Li

Xinhao Zhu

Xiaoan Hou

A voltage conversion apparatus, a control method, and a power supply device. The voltage conversion apparatus includes a control circuit. The control circuit is configured to: obtain a first sampling voltage and a second sampling voltage; detect a resonant period based on the second sampling voltage when it is determined, based on the first sampling voltage, that a voltage range of an output voltage of the voltage conversion apparatus changes and a voltage threshold is exceeded; and output a drive signal based on the detected resonant period. The drive signal is used to control turn-on and turn-off of a first switching transistor and a second switching transistor.

Voltage conversion apparatus, control method, and power supply device

Embodiments of the present disclosure provide an opening and closing mechanism and a leakage protection device. The opening and closing mechanism comprises: a stationary contact and a movable contact, which contacts the stationary contact at ON-position and separates from the stationary contact at OFF-position; a first magnetic assembly; and a second magnetic assembly that is integrally rotatable about an axis, the second magnetic assembly comprising: an electric conductor onto which the movable contact is mounted; and a magnetic body comprising at least one magnetic portion configured to rotate about the axis under a magnetic force from the first magnetic assembly, to correspondingly drive the movable contact to rotate between the ON-position and the OFF-position, wherein a distance from each of the at least one magnetic portion to the axis is smaller than a distance from the movable contact to the axis. In accordance with embodiments of the present disclosure, the transmission efficiency within the opening and closing mechanism may be boosted, and the movable and stationary contacts are separated faster and by a longer distance, so as to improve the performance of the opening and closing mechanism.

Opening and closing mechanism and leakage protection device

Kids' electric vehicle

An acoustic wave device includes a piezoelectric substrate and an interdigital transducer disposed on the piezoelectric substrate, the interdigital transducer including a center region, first and second edge regions, and first and second gap regions, a temperature compensation layer covering the interdigital transducer, and a floating metal layer buried in the temperature compensation layer or disposed on top of the temperature compensation layer. The floating metal layer includes a plurality of floating metal blocks spaced apart from each other and overlapping at least the first and second edge regions of the interdigital transducer.

Surface acoustic wave device

An ultrasound image acquisition method, comprising: according to a first collection instruction, determining a working mode of an ultrasound image acquisition system to be a first mode; in the first mode, transmitting a first ultrasound wave to interior of a to-be-detected object; obtaining a first ultrasound echo signal based on the first ultrasound wave that is returned from the interior of the to-be-detected object, and combining beams thereof to obtain first basic ultrasound wave images; according to the first basic ultrasound images, acquiring a first reference direction and the contour of a reference to-be-detected sub-object; according to the first reference direction and the contour of the reference to-be-detected sub-object, acquiring first spatial position information of the interior of the to-be-detected object; according to the first spatial position information, generating and displaying a first stereoscopic ultrasound image and/or a first planar ultrasound image based on the interior of the to-be-detected object.

Ultrasound image acquisition method, system and computer storage medium

Provided are a metadata processing method and apparatus, and a computer-readable storage medium. In the metadata processing method, a management server obtains metadata to be processed, wherein the metadata to be processed includes a directory structure and file attributes; and according to a load condition of at least one first node for storing the file attributes and based on a rule that file attributes of a same directory are stored in a same first node, the management server stores, in the at least one first node, the file attributes of directories in the directory structure in a distributed manner.

Metadata processing method and apparatus, and a computer-readable storage medium

A method includes displaying a first user interface, displaying a first simulated operating state of a smart home device in a status display area in response to selecting a first control, receiving an association success notification, displaying a second user interface, and sending a control instruction to the smart home device in response to selecting a second control. The first user interface includes the first control for controlling the smart home device and a status display area of the smart home device. The second user interface includes the second control for controlling the smart home device and the status display area of the smart home device. The control instruction instructs the smart home device to enter a first operating state according to the selecting the second control, and displaying a second simulated operating state of the smart home device in the status display area of the second user interface.

Device control page display method, related apparatus, and system

An ultrasound image processing device and a method for quantitative analysis of cardiac motion are provided. The device comprises: a display; and a processor configured to: obtain an ultrasound presentation, wherein the ultrasound presentation comprises one of an ultrasound image and an ultrasound video; perform a motion tracking on at least one region of interest according to the ultrasound presentation to obtain a tracking result of the at least one region of interest; determine a tracking quality of the tracking result of the at least one region of interest; and control the display to display the tracking quality of the at least one region of interest, wherein the tracking quality is a confidence of the tracking result of the corresponding region of interest and indicates a credibility of the tracking result of the corresponding region of interest.

Ultrasound image processing device and method, and computer-readable storage medium

A camera module structure is provided which includes a mainboard, a first camera module, a second camera module, and a TOF device. The TOF device is located between the first camera module and the second camera module, which are respectively mounted to a first mounting portion and a second mounting portion that are hollowed-out via the brackets. The mainboard includes a spacing portion for separation between the first mounting portion and the second mounting portion. The TOF device is disposed on an upper surface of an auxiliary circuit board; the auxiliary circuit board is greater than the spacing portion in width; the auxiliary circuit board is located on an upper surface of the mainboard, and the auxiliary circuit board is connected to the mainboard and at least partially overlapped with the spacing portion; and the auxiliary circuit board is provided with a material removal portion on a lower surface.

Camera module structure and electronic device

An internal-reflective telecentric lens system includes a first lens assembly, a reflector, and a second lens assembly. The first lens assembly includes a first lens. The second lens assembly includes a second lens, a third lens, and a fourth lens, that are disposed in sequence along a light path. The first lens assembly is configured to receive and output one or more light beams towards the reflector. The reflector is configured to reflect the light beams towards the second lens assembly. The second lens assembly is configured to receive and converge the light beams reflected by the reflector at a diaphragm between the second lens and the third lens, and transmit the light beams past the diaphragm through the third and the fourth lenses for imaging.

Internal-reflective telecentric lens system

A quantitative analysis method for cardiac motion, and an ultrasonic system, said method comprising: emitting an ultrasonic wave to a target heart; receiving an ultrasonic echo returned from the target heart; determining an ultrasonic image of the target heart according to the ultrasonic echo; acquiring an area of interest in the ultrasonic image; and tracking the motion of the area of interest, so as to acquire torsion parameters of the target heart and the confidence of the torsion parameters. The present invention performs quantitative analysis on the torsion motion of the heart, and also provides the confidence of the analysis result, that is, quantitative evaluation is also performed on the analysis result, assisting the physician in making a more accurate cardiac function evaluation.

Quantitative analysis method for cardiac motion, and ultrasonic system

Provided are an adaptor element in a bubble shape, a method of constructing a sequencing library with such an adapter element. The adaptor element is a hybrid formed with a long-chain nucleic acid A and a short-chain nucleic acid B. The hybrid is in the bubble shape with paired regions at two terminals and a non-paired region in the middle.

Bubble-shaped adaptor element and method of constructing sequencing library with bubble-shaped adaptor element

An electronic apparatus performs a method of representing a 3D shape that includes: dividing a 3D space enclosing the 3D shape into a plurality of 3D spaces with a hierarchical octree structure; generating local implicit functions, and each of the local implicit functions corresponds to a respective 3D space of the plurality of 3D spaces; and reconstructing a representation of the 3D shape from the local implicit functions with the hierarchical octree structure. In some embodiments, the 3D space is recursively subdivided into the child octants according to the surface occupancy and richness of the geometry of the 3D shape, and a respective local implicit function is generated corresponding to a geometry of a part of the surface.

Systems and methods of hierarchical implicit representation in octree for 3D modeling

The present invention discloses a device for measuring dynamic evolution of a three-dimensional disturbed stress under mining disturbance, comprising an outer steel cylinder. Three three-direction sensing units are arranged on the outer steel cylinder. Any two of three stress measurement directions of each three-direction sensing unit are perpendicular to each other. Nine stress measurement directions of the three three-direction sensing units are different. The present invention also discloses a method for measuring dynamic evolution of a three-dimensional disturbed stress under mining disturbance. In the present invention, stresses are measured from three perpendicular directions which are inclined, so the difficulty in measuring a three-dimensional stress in a borehole is overcome; and a spatial stress value is measured by three three-direction sensing units, and thus the size and direction of a disturbed principal stress in the borehole are calculated.

Device and method for measuring dynamic evolution of three-dimensional disturbed stress under mining disturbance

Protective cover for tablets

Growing community of inventors

Shenzhen, China

Bo Wang