Patents by Inventor Wei Fan

Wei Fan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210020770
    Abstract: A semiconductor device includes a fin structure protruding from a first isolation insulating layer provided over a substrate, a gate dielectric layer disposed over a channel region of the fin structure, a gate electrode layer disposed over the gate dielectric layer, a base semiconductor epitaxial layer disposed over a source/drain region of the fin structure, and a cap semiconductor epitaxial layer disposed over the base semiconductor epitaxial layer. The cap semiconductor epitaxial layer has a different lattice constant than the base semiconductor epitaxial layer, and a surface roughness of the cap semiconductor epitaxial layer along a source-to-drain direction is greater than zero and smaller than a surface roughness of the base semiconductor epitaxial layer along the source-to-drain direction.
    Type: Application
    Filed: July 18, 2019
    Publication date: January 21, 2021
    Inventors: Wen-Hsien TU, Wei-Fan LEE
  • Publication number: 20210017027
    Abstract: A method for making a carbon nanotube field emitter is provided. A carbon nanotube film is dealed with a carbon nanotube film in a circumstance with a temperature ranged from 1400 to 1800° C. and a pressure ranged from 40 to 60 MPa to form at least one first carbon nanotube structure. The at least one first carbon nanotube structure is heated to graphitize the at least one first carbon nanotube structure to form at least one second carbon nanotube structure. At least two electrodes is welded to fix one end of the at least one second carbon nanotube structure between adjacent two electrodes to form a field emission preparation body. The field emission preparation body has a emission end. The emission end is bonded to form a carbon nanotube field emitter.
    Type: Application
    Filed: October 23, 2019
    Publication date: January 21, 2021
    Inventors: PENG LIU, DUAN-LIANG ZHOU, CHUN-HAI ZHANG, LI QIAN, YU-QUAN WANG, XUE-WEI GUO, LI-YONG MA, FU-JUN WANG, SHOU-SHAN FAN
  • Publication number: 20210017967
    Abstract: A field emission neutralizer is provided. The field emission neutralizer includes a bottom plate and a field emission cathode unit located on the bottom plate. The field emission cathode unit includes a substrate, a shell located on the substrate, a cathode emitter located inside the shell, a mesh grid insulated from the cathode emitter, and a shielding layer insulated from the mesh grid. The cathode emitter includes a cathode substrate and a graphitized carbon nanotube array. The graphitized carbon nanotube array is in electrical contact with the cathode substrate. The graphitized carbon nanotube array is fixed on a surface of the substrate body, and the carbon nanotubes of the graphitized carbon nanotube array are substantially perpendicular to the cathode substrate.
    Type: Application
    Filed: October 23, 2019
    Publication date: January 21, 2021
    Inventors: PENG LIU, DUAN-LIANG ZHOU, CHUN-HAI ZHANG, LI QIAN, YU-QUAN WANG, XUE-WEI GUO, LI-YONG MA, FU-JUN WANG, SHOU-SHAN FAN
  • Patent number: 10894717
    Abstract: A method for making a carbon nanotube field emitter is provided. A carbon nanotube film is dealed with a carbon nanotube film in a circumstance with a temperature ranged from 1400 to 1800° C. and a pressure ranged from 40 to 60 MPa to form at least one first carbon nanotube structure. The at least one first carbon nanotube structure is heated to graphitize the at least one first carbon nanotube structure to form at least one second carbon nanotube structure. At least two electrodes is welded to fix one end of the at least one second carbon nanotube structure between adjacent two electrodes to form a field emission preparation body. The field emission preparation body has a emission end. The emission end is bonded to form a carbon nanotube field emitter.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: January 19, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Peng Liu, Duan-Liang Zhou, Chun-Hai Zhang, Li Qian, Yu-Quan Wang, Xue-Wei Guo, Li-Yong Ma, Fu-Jun Wang, Shou-Shan Fan
  • Patent number: 10895641
    Abstract: A proximity sensing device which is disposed under the OLED panel and has an emitting module and a receiving module, is provided. The emitting module can emit an invisible light which has a peak wavelength not less than 1000 nm. The receiving module is disposed adjacent to the emitting module and can receive a reflecting light from the reflected invisible light. Therefore, the invisible light passing through the OLED panel will not cause a bright spot on the panel.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: January 19, 2021
    Assignee: Everlight Electronics Co., Ltd.
    Inventors: Shih-Wen Lai, Yi-Ting Huang, Jing-Hong Lai, Chih-Hao Hsu, Chia-Wei Yang, Chih-Min Lin, Chieh-Yu Kang, Kuang-Mao Lu, Jian-Hong Fan
  • Publication number: 20210010173
    Abstract: The present invention discloses a method for preparing a halogen-free low-smoke intrinsic flame-retardant nylon 66 composite material, which is implemented according to a conventional preparation process by taking an organic acid-modified metal hydroxide as a flame retardant. According to the present invention, an organic acid containing flame-retardant elements such as P, N and S is used for carrying out reactive modification on the metal hydroxide, so that the agglomeration behavior of the metal hydroxide in a polymer is effectively reduced, the compatibility between the flame retardant and nylon 66 is improved. Meanwhile, a series of flame-retardant functional groups such as P, N and S are introduced, so that the flame retardancy of the nylon 66 is greatly improved, the smoke suppression effect is achieved to a certain extent. Therefore, the prepared intrinsic nylon 66 composite material has desirable flame retardancy (an oxygen index can reach 25.8) and low smoke effect.
    Type: Application
    Filed: January 15, 2020
    Publication date: January 14, 2021
    Inventors: Ziqiang Lei, Hui Fan, Xinyao Lv, Yaoxia Yang, Wei Zeng, Zhiwang Yang
  • Publication number: 20210008787
    Abstract: Disclosed are 3D printing equipment, a system, and a method for food design and production, belonging to the field of food technologies. A bipolar microwave heating antenna is disposed, to implement focused heating on a material in an extrusion nozzle. In addition, the bipolar microwave heating antenna breaks through a traditional multi-mode cavity heating method, thereby greatly reducing a volume of a heating cavity and facilitating integration with a desktop 3D printer. A microwave switch is controlled by using an extrusion instruction to achieve synchronization between extrusion and heating, and improve heating uniformity. Through joint operations of a 3D scanner, slicing software, and a 3D printer, processes of model making, slicing, and 3D printing are integrated.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 14, 2021
    Inventors: Daming FAN, Zilong ZHAO, Bowen YAN, Wenhua GAO, Jianlian HUANG, Huayu YANG, Hao ZHANG, Jianxin ZHAO, Wei CHEN
  • Publication number: 20210007706
    Abstract: Embodiments of the present disclosure provide a flow imaging processing method, which may include determining flow imaging parameters, where the flow imaging parameters include a sound speed for calculation, a center frequency of the transmitting pulse for exciting a probe and a imaging depth; obtaining a velocity measurement range; and determining the first target number of the different transmit angles according to the sound speed for calculation, the center frequency of the transmitting pulse, the imaging depth and the velocity measurement range. The embodiments of the present disclosure also provide an ultrasound imaging device.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 14, 2021
    Inventors: Yigang DU, Wei FAN, Lanxi XIANG, Yuan WANG, Yingying SHEN, Kai WANG, Donghai QIN
  • Patent number: 10891476
    Abstract: A method, system, and neural network for identifying direction of a document where the method comprises: extracting a text line in the document; calculating a first normal direction result indicative of the text line probably being in a normal direction and a first upside-down direction result indicative of the text line probably being in a direction upside-down with respect to the normal direction; calculating a second normal direction result indicative of the text line after being rotated by 180 degrees probably being in the normal direction and a second upside-down direction result indicative of the text line after being rotated by 180 degrees probably being in the direction upside-down with respect to the normal direction; and determining the direction of the document according to the first normal direction result, the first upside-down direction result, the second normal direction result and the second upside-down direction result.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: January 12, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Ruochen Wang, Wei Fan, Jun Sun
  • Publication number: 20210003489
    Abstract: A split-type device for measuring rock mass deformation under high hydraulic pressure and a construction method and use thereof. Main components of the device include a metal measuring rod, a magnetic iron core, a shell, a waterproof coil framework, a coil, a tail accessory, a cable clamp, a cable, a signal processing bin, etc. Main electronic components are treated by adopting the all-metal shell and a vacuum particle sealing double-layer sealing process, and have hydraulic pressure resistance of 5 MPa or above. Measurement signals feature centralized processing, digitization and dual utilization of signals, i.e., after data of a plurality of sensors is processed in an electronic bin and then digitized signals are connected to an independent reader outside the bin or a centralized acquisition device for in-situ tests.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 7, 2021
    Inventors: Aiqing WU, Lei FAN, Qixiang FAN, Xiaoyu HAN, Zhiquan KE, Yihu ZHANG, Yuankun LIU, Zuowu ZHONG, Meiwan YU, Kun WU, Wei HU, Chong CHEN, Qian XIANG
  • Patent number: 10883882
    Abstract: A method for making blackbody radiation source is provided. A blackbody radiation cavity and a carbon nanotube array located on a substrate are provided. A black lacquer layer is coated on an inner surface of the blackbody radiation cavity. A pressure is applied to the carbon nanotube array to form a carbon nanotube paper on the surface of the substrate. The carbon nanotube paper is placed on the black lacquer layer. And then the substrate is peeled off to separate carbon nanotubes in the carbon nanotube paper from the substrate and bond to the black lacquer layer, the carbon nanotubes in the carbon nanotube paper vertically aligned and forms the carbon nanotube array under forces of the substrate and the black lacquer layer.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: January 5, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Guang Wang, Yang Wei, Shou-Shan Fan
  • Patent number: 10886640
    Abstract: An electrical connector comprises a housing having a receiving passage and a conductive terminal inserted and removably mounted in the receiving passage in an insertion direction. The conductive terminal includes a body portion having a first end and a second end opposite to the first end, a clamping portion disposed at the first end of the body portion and configured to clamp a wire of a cable, and a spring locking portion disposed on the body portion and obliquely extending from the body portion in a direction away from the body portion toward the second end. The locking portion is configured to engage a bottom wall of the receiving passage. The engagement of the locking portion with the bottom wall of the receiving passage is released by driving the locking portion with an external tool inserted in the insertion direction.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: January 5, 2021
    Assignee: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Wei Zhang, Ming Shi, Xiaozhi Fu, Dingbing Fan, Hongtao Jiang
  • Patent number: 10879063
    Abstract: A method of fabricating a high-crystalline-quality and high-uniformity AlN layer within a high electron mobility transistor (HEMT) device with a metalorganic chemical vapor deposition (MOCVD) technique, includes: raising a temperature of a substrate to an ultra-high growth temperature; and supplying an Al source and an N source in pulses over the substrate under the ultra-high growth temperature, wherein the ultra-high growth temperature is at least 1300° C. At least for a first predetermined period of time in each cycle of the pulses, the Al source is switched on when the N source is switched off.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: December 29, 2020
    Assignee: SUZHOU HAN HUA SEMICONDUCTOR CO., LTD.
    Inventors: Xianfeng Ni, Qian Fan, Wei He
  • Publication number: 20200404614
    Abstract: A positioning method includes: sending, by a base station, indication information to a plurality of UEs, where the plurality of UEs have an MDT function in a cell covered by a to-be-positioned RRU, and the indication information is used to indicate the plurality of UEs to periodically report location information; obtaining, by the base station within each of at least one time period, time-of-arrival ToA measurement values of N UEs, where the N UEs are some UEs that report the location information in the plurality of UEs, N?1, and N is an integer; and calculating, by the base station, a location of the to-be-positioned RRU based on M ToA measurement values obtained within the at least one time period and M pieces of location information that are in the received location information and that respectively correspond to the M ToA measurement values, where M?3, and M is an integer.
    Type: Application
    Filed: September 8, 2020
    Publication date: December 24, 2020
    Inventors: Wei Dong, Hua Fan, Xiaojie Li, Fei Jiao
  • Patent number: 10874000
    Abstract: A display device includes a display computing module coupled to a signal source and configured to receive an audio/video signal from the signal source; an audio computing module coupled to the display computing module, the audio computing module configured to receive the audio/video signal from the display computing module and to obtain a sound information including orientation data, the audio computing module outputting the sound information to enable the display computing module to generate a control signal based on the sound information; and a light source device coupled to the display computing module, the light source device including multiple light-emitting areas corresponding to the orientation data, the light source device configured to control a light-emitting status of at least one light-emitting area according to the control signal.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: December 22, 2020
    Assignee: Qisda Corporation
    Inventors: Tse-Wei Fan, Fu-Tsu Yen
  • Publication number: 20200396854
    Abstract: In an example, a movable standoff may include or be attached to a bracket having a post opening, and a post insertable into the post opening. The post may include a low shoulder portion disposed at a first end and a high shoulder portion. Further, the movable standoff may include a nut to fasten to a second end of the post, the first end being opposite from the second end. The high shoulder portion may be disposed in between the first end and the second end. The movable standoff may additionally include a bias member disposed in between the nut and the bracket.
    Type: Application
    Filed: March 6, 2018
    Publication date: December 17, 2020
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Yao-Wen Fan, Yu Wei Tan, Sheng-Lung Liao
  • Publication number: 20200383625
    Abstract: A method and user device for providing a unified Parkinson's disease rating scale (UPDRS) value by a user device includes generating, by a sensor of the user device, sensor data based on a user of the user device manipulating the user device. The UPDRS value is determined based on the sensor data and a deep neural network (DNN) model. The UPDRS value is provided to permit an evaluation of the user based on the UPDRS value.
    Type: Application
    Filed: June 5, 2019
    Publication date: December 10, 2020
    Applicant: TENCENT AMERICA LLC
    Inventors: Lianyi HAN, Hui TANG, Yusheng XIE, Shih-Yao LIN, Qian Zhen, Zhimin HUO, Wei FAN
  • Patent number: 10859872
    Abstract: A system comprising a display, a display cover, a plurality of sensors disposed between the display and the display cover and a lighting control system coupled to the display and the plurality of sensors, the lighting control system configured to receive one or more signals from the plurality of sensors and to reduce a backlight level of a subgroup of lighting elements associated with the one or more sensors associated with the one or more signals, wherein the subgroup of lighting elements is one of a plurality of subgroups of lighting elements of the display.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: December 8, 2020
    Assignee: DELL PRODUCTS L.P.
    Inventors: Ching-Feng Chen, Meng-Feng Hung, Yu-Lung Lin, Yi-Fan Wang, Wei-Sung Lin
  • Patent number: 10862532
    Abstract: A computer-implemented method for communication includes obtaining power data associated with a plurality of channels of a frequency band, predicting an error rate for each of the plurality of channels based at least in part on the power data, and selecting a hopset of channels for frequency hopping from the plurality of channels based at least in part on the predicted error rates for the plurality of channels.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: December 8, 2020
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Wei Fan, Naibo Wang
  • Publication number: 20200381533
    Abstract: An integrated enhancement/depletion mode high electron mobility transistor (HEMT) includes a substrate, a first buffer layer, a first barrier layer, a first channel layer, a first source, a first drain, a first gate, a second buffer layer, a second barrier layer, a second channel layer, a second source, a second drain, and a second gate. The first buffer layer is on the substrate. The first barrier layer is on a first area of the first buffer layer, the first channel layer is on the first barrier layer, and the first source, the first drain, and the first gate are on the first channel layer. The second buffer layer is on a second area of the first buffer layer, the second bather layer is on the second buffer layer, the second channel layer is on the second barrier layer, and the second source, the second drain, and the second gate are on the second channel layer.
    Type: Application
    Filed: August 5, 2020
    Publication date: December 3, 2020
    Applicant: SUZHOU HAN HUA SEMICONDUCTOR CO., LTD.
    Inventors: Xianfeng Ni, Qian Fan, Wei He