Aac Acoustic Technologies (shenzhen) Co., Ltd.

Aac Technologies Pte. Ltd.

American Audio Components Inc.

Tsinghua University

Siemens Aktiengesellschaft

Huawei Technologies Co., Limited

Hon Hai Precision Industry Co., Ltd.

Triple Win Technology(shenzhen) Co.ltd.

Shenzhen Tcl New Technology Co., Ltd.

Fukui Precision Component (shenzhen) Co., Ltd.

Foxconn Advanced Technology Inc.

Aac Kaitai Technologies (wuhan) Co., Ltd

China Nuclear Power Engineering Company Ltd.

Boyan Technologies (shenzhen) Co., Ltd

China General Nuclear Power Corporation

Rui Guo Zhang

Lian Duan

Ting Kang

Jinyu Zhang

Zhiyuan Chen

Linlin Wang

Zhuanzhuan Zhao

Yao-Wen Bai

Hui Zhang

Cheng-Hsien Lin

Zhan Zhan

Zhenkui Meng

Wen-Chin Lee

Yang Bai

Yuwei Liu

Qiuyu Tan

Zhou Ge

Kai-Li Jiang

Chen Feng

Kun Li

Wei Wang

Chun Lan Chen

Xing Xing Wang

Kai Wang

Hui Fu Jiang

Chuan Chen

Long Zhang

Yu-Shuai Li

Youle Hu

Gang Xu

Oliver Schreck

Ding-Nan Huang

Yannick Pierre Kervran

Jiangtao Wen

Weihua Chen

Bin Yang

Shing-Tza Liou

Wenguang Chen

Yuxing Han

Zhengyu Shi

Xiaohui Zhong

Wei Qiu

Bei Tong

Li Zeng

Shi Zhang

Chen Yu

Yeh-Ching Chung

Jiawen Gu

Yanxin Chen

Hao Yang

Wenchao Xiao

Yanghao Li

Yajie Tian

Ji Shi

Jinyang Li

Huaqing Peng

Weijun Huang

Lin-lin Wang

Xiao-lin Zhang

Zheng-Kui Meng

Jia Jie Zhang

Yi-Lin Yan

Hai-Feng Li

Qiu-Yue Zhang

Hai Yan Zhou

Shaowu Hu

Yueming Hu

Wushuang Jiang

Chi Xu

Tianyou Li

Hanger assembly

The present disclosure provides a linear motor including: a housing body with a containment space; a vibrator assembly suspended in the containment space by an elastic member for vibrating along a vibration direction; a stator assembly fixedly connected to the housing body and having a magnetic axis along the vibration direction; and two magnets located on both sides of the magnetic axis and spaced from the stator assembly, including a first magnet section and a second magnet section located on both sides of the first magnet section. A magnetic field strength of the first magnet section along the magnetic axis is greater than a magnetic field strength of the second magnet section along the magnetic axis. The configuration of the invention can effectively reduce the static attraction force of the magnetic circuit, and increase the overall rigidity of the linear motor.

Mobile device including improved electro-acoustic conversion chip

The present disclosure provides a differential resonator and a MEMS sensor. The differential resonator includes a substrate, a first resonator, a second resonator and a coupling mechanism. The first resonator is connected with the second resonator through the coupling mechanism, and the first resonator and the second resonator are connected with the substrate and are able to be displaced relative to the substrate. The coupling mechanism includes a coupling arm, a support shaft, a first connecting piece and a second connecting piece. The coupling arm includes a first force arm, a second force arm and a coupling portion. The support shaft has one end connected with the substrate, and one other end connected with the coupling portion. The first force arm is connected with the first resonator through the first connecting piece, and the second force is connected with the second resonator through the second connecting piece.

Differential resonator and MEMS sensor

The present invention provides a MEMS microphone, including a substrate and a capacitive structure. The capacitive structure includes a back plate and a vibration diaphragm. The vibration diaphragm includes a main body and a plurality of supporting structures for supporting the main body. Each supporting structure includes a supporting beam and two spring structures. Each spring structure includes at least two beam arms extending along the extension direction of the peripheral edge of the main body, and the beam arm closest to the main body is spaced apart from the main body. The sensitivity of the MEMS microphone in the present invention is higher.

MEMS microphone

The present disclosure discloses a MEMS microphone including a printed circuit board, a shell assembled with the printed circuit board for forming a receiving space and provided with a sound hole communicating with the receiving space, a MEMS Die with a cavity accommodated in the receiving space and mounted on the shell for covering the sound hole, and an ASIC chip accommodated in the receiving space and mounted on the shell through a substrate. The cavity of the MEMS Die communicates with the sound hole. The MEMS Die electrically connects with the ASIC chip. The ASIC chip electrically connects with the substrate. The substrate electrically connects with the printed circuit board.

The present disclosure discloses a MEMS microphone including a substrate with a back cavity, and an electric capacitance system arranged on the substrate. The electric capacitance system includes a back plate and a diaphragm opposite to the back plate. The back plate includes a body part, a fixing portion connected to the substrate, and a connecting portion connecting the body part and the fixing portion. The diaphragm is fixed to the substrate and located at a side of the back plate close to the substrate. The fixing portion includes a first surface away from the substrate, the first surface includes a first arc surface connected with the body part, the first arc surface protrudes toward a direction away from the substrate. Compared with the related art, MEMS microphone disclosed by the present disclosure has a better reliability.

The present disclosure discloses a MEMS chip including a capacitance system and a substrate with a back cavity. The capacitance system includes a back plate and a membrane; the substrate is located on one side of the membrane away from the back plate, including a first surface opposite to the membrane, a second surface opposite to the first surface, and an inner wall connecting the first surface and the second surface and enclosing the back cavity; the inner wall includes a first opening close to the membrane, having a first width along a first direction perpendicular with a vibration direction of the membrane, and a second opening away from the membrane, having a second width smaller than the first width along the first direction. The resonance frequency of the MEMS chip has been effectively improved and the SNR is simultaneously high.

MEMS chip

The present disclosure discloses a MEMS chip which includes a substrate, a back plate fixed on the substrate, and a membrane fixed on the substrate and located above the back plate. A sealed space is formed between the membrane and the back plate. A support pillar is received in the sealed space. Two ends of the support pillar along a vibration direction of the membrane are separately fixed on the membrane and the back plate. As a result, when decreasing the volume of the back cavity, the resonance frequency of the MEMS chip has been effectively improved and the SNR is simultaneously high. Furthermore, the support pillar can effectively improve the reliability and crack resistance of the membrane.

The present disclosure provides a differential resonator and a MEMS sensor. The differential resonator includes a substrate, a first resonator, a second resonator and a coupling mechanism. The first resonator is connected with the second resonator, and the first resonator and the second resonator are movably connected with the substrate. The coupling mechanism includes a first guide beam, a second guide beam, a first coupling beam, a second coupling beam, a first connecting piece and a second connecting piece. The first guide beam and the second guide beam are arranged on two opposite sides of a direction perpendicular to a vibration direction of the first resonator or the second resonator. The first coupling beam is connected with the first guide beam, the second guide beam and the first resonator. The second coupling beam is connected with the first guide beam, the second guide beam and the second resonator.

A method for tracking target object, storage medium and electronic device, which relate to the field of an image processing technology. The method includes: receiving at least one target image captured by a single photon avalanche diode (SPAD) camera before present moment; for each target image, inputting the target image and a preset template image into a pre-trained siamese network to acquire a position of a target object in the target image output by the siamese network, wherein the template image includes the target object; and determining a position of the target object in an image to be predicted based on the position of the target object in each target image, wherein the image to be predicted is an image captured by the SPAD camera at the present moment.

Method for tracking target object

The disclosure relates to a 3D reconstruction method based on an on-site edge-cloud collaboration for a cultivated land. An edge-cloud collaborative computing architecture is used, such that the edge computing device performs advance calculations after image data is acquired. The edge computing device measures performances of itself and a cloud data center, and arranges and deploys multiple 3D reconstruction containers in the cloud data center for the 3D reconstruction. Multiple reconstruction containers in the cloud data center perform reconstruction tasks in parallel to quickly obtain 3D reconstruction results, and provide them to the edge computing device for retrieval and download. This method is mainly oriented to agricultural project monitoring scenes, to reduce reconstruction time and a data transmission amount of 3D models, in order to improve a response speed and a quality of 3D reconstruction results, for large-scale on-site monitoring, acceptance, and review purposes of agricultural projects.

3D reconstruction method based on on-site edge-cloud collaboration for cultivated land

A camera module includes a mounting frame defining a first through hole, a filter installed in the first through hole, and a circuit board including a first surface and a second surface. The mounting frame is on the first surface. An air escaping channel is recessed from the second surface, an air escaping hole penetrates the first surface and the second surface and communicates with the air escaping channel. The circuit board, the mounting frame, and the filter cooperate with each other to form a first cavity, the first cavity communicates with the air escaping hole. The air escaping channel includes a first channel portion and a second channel portion, an angle is formed between the first channel portion and the second channel portion. The air escaping hole communicates with the first channel portion, the second channel portion extends to an edge of the circuit board to form an opening.

Camera module and electronic device having the camera module

A comb-like capacitive microphone includes a substrate penetrated by a cavity having an upper part provided with a step, stationary electrodes equally spaced on the step, and a diaphragm received in the step and including a vibrating portion and a connecting portion connected to the vibrating portion. Movable electrodes protrude from a periphery of the vibrating portion, and an end of the connecting portion away from the vibrating portion is connected to the substrate. The stationary electrodes are arranged in a comb shape and directly etched on the substrate, and the movable electrodes are arranged in a comb shape. The stationary electrodes are spatially separated from the movable electrodes, each stationary electrode is corresponding to each movable electrode. Such structure of the comb-like capacitive microphone offers a relatively large displacement, to decrease the acoustic noise and to offer a high sensitivity, and eventually a sound transducer with high performances.

Comb-like capacitive microphone

A piezoelectric MEMS microphone is disclosed. The microphone includes a base having a cavity; a piezoelectric diaphragm; a fixation beam connecting with the piezoelectric diaphragm; and a support beam connecting with the base and the fixation beam. The piezoelectric diaphragm has a number of diaphragm sheets fixed by the fixation beam, each diaphragm sheet having a fixed end and a free end. The fixed end is connected with the fixation beam, and the free end extends from the fixed end to two sides and is suspended above the cavity. Compared with the related art, mechanical strength of the diaphragm sheet is improved, and the output intensity of the signal is improved.

Piezoelectric MEMS microphone

The invention provides a piezoelectric micro-electromechanical system (MEMS) microphone includes a base with a cavity and a piezoelectric diaphragm arranged on the base. The base has a ring base and a support column. The piezoelectric diaphragm includes a plurality of diaphragm sheets. Each diaphragm sheet has a fixing end connected with the support column and a free end suspended above the cavity. The widths of the diaphragm sheets are gradually increased from the fixing ends to the free ends. According to the piezoelectric MEMS microphone provided by the invention, under sound pressure, the free ends vibrate, wide free ends drive short fixing ends, and the diaphragm sheets close the fixing ends generate greater deformation to generate more charge. Therefore, the sensitivity can be further improved.

Growing community of inventors

Wuhan, China

Rui Guo Zhang