Patents by Inventor Chang Zhang

Chang Zhang 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: 20230333658
    Abstract: A portable computer includes a display portion comprising a display and a base portion pivotally coupled to the display portion. The base portion may include a bottom case and a top case, formed from a dielectric material, coupled to the bottom case. The top case may include a top member defining a top surface of the base portion and a sidewall integrally formed with the top member and defining a side surface of the base portion. The portable computer may also include a sensing system including a first sensing system configured to determine a location of a touch input applied to the top surface of the base portion and a second sensing system configured to determine a force of the touch input.
    Type: Application
    Filed: June 20, 2023
    Publication date: October 19, 2023
    Inventors: Christiaan A. Ligtenberg, Brett W. Degner, Ron A. Hopkinson, Asif Hussain, Dinesh C. Mathew, Mikael M. Silvanto, Chang Zhang, Zheng Gao, Robert Y. Cao, Keith J. Hendren, Bryan W. Posner, Simon R. Lancaster-Larocque, Alex J. Lehmann
  • Publication number: 20230297185
    Abstract: The embodiments of the present disclosure provide a chip on flex (COF), a touch assembly, and a display device. The chip on flex includes a flexible base provided with a first opening, the flexible base includes a bonding area provided with a plurality of metal bonding pads; on the flexible base, a spacing area with a preset range is provided between the first opening and the bonding area; wherein, the flexible base is provided with a reinforcement sheet thereon, the reinforcement sheet is located on a portion of the flexible base other than the first opening, the spacing area and the bonding area.
    Type: Application
    Filed: May 23, 2023
    Publication date: September 21, 2023
    Inventors: Xuerui GONG, Jiangsheng WANG, Yong YU, Chang ZHANG
  • Publication number: 20230279115
    Abstract: Provided are a single variable domain antibody targeting a human programmed death ligand 1 (PD-L1) and a derivative thereof. A single variable domain antibody 2-2F2 specific for human PD-L1 is identified and obtained by extracting PBMCs from a camel immunized with human PD-L1, constructing a phage surface displayed VHH antibody library, and screening said VHH antibody library. On said basis, a chimeric antibody chF2 and a humanized modified antibody hzF2 variant are prepared. The hzF2 variant possesses affinity comparable or even superior to that of the original single variable domain antibody 2-2F2, can block the binding of PD-1 to PD-L1 in vitro, and can inhibit tumor growth in an in vivo experiment on tumor-bearing mice.
    Type: Application
    Filed: April 21, 2021
    Publication date: September 7, 2023
    Inventors: Shuang WANG, Dadi ZENG, Shasha JIAO, Chang ZHANG, Rongjuan WANG
  • Patent number: 11720176
    Abstract: A portable computer includes a display portion comprising a display and a base portion pivotally coupled to the display portion. The base portion may include a bottom case and a top case, formed from a dielectric material, coupled to the bottom case. The top case may include a top member defining a top surface of the base portion and a sidewall integrally formed with the top member and defining a side surface of the base portion. The portable computer may also include a sensing system including a first sensing system configured to determine a location of a touch input applied to the top surface of the base portion and a second sensing system configured to determine a force of the touch input.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: August 8, 2023
    Assignee: APPLE INC.
    Inventors: Christiaan A. Ligtenberg, Brett W. Degner, Ron A. Hopkinson, Asif Hussain, Dinesh C. Mathew, Mikael M. Silvanto, Chang Zhang, Zheng Gao, Robert Y. Cao, Keith J. Hendren, Bryan W. Posner, Simon R. Lancaster-Larocque, Alex J. Lehmann
  • Publication number: 20230246165
    Abstract: A high compaction silicon carbon negative electrode precursor material with a saddle-like structure, a preparation method therefor and a silicon carbon negative electrode material prepared therefrom. The silicon carbon negative electrode precursor material is formed by compounding nano silicon and a carbon material, and the particles of the high compaction silicon carbon negative electrode precursor material have one or more recessed curved surfaces, and at least one of the curves constituting the curved surface is a parabola with a focus outside of the particles. The precursor material has high mechanical strength, and the particle structure keeps intact after rolling, and can be made into an electrode sheet with high compaction and high density.
    Type: Application
    Filed: April 14, 2021
    Publication date: August 3, 2023
    Inventors: Shifeng YANG, Xinlong CAO, Chang' an ZHANG, Xin XU, Mengyao XUE, Zhanyuan TIAN
  • Patent number: 11698695
    Abstract: The embodiments of the present disclosure provide a chip on flex (COF), a touch assembly, and a display device. The chip on flex includes a flexible base provided with a first opening, the flexible base includes a bonding area provided with a plurality of metal bonding pads; on the flexible base, a spacing area with a preset range is provided between the first opening and the bonding area; wherein, the flexible base is provided with a reinforcement sheet thereon, the reinforcement sheet is located on a portion of the flexible base other than the first opening, the spacing area and the bonding area.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: July 11, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuerui Gong, Jiangsheng Wang, Yong Yu, Chang Zhang
  • Publication number: 20230196968
    Abstract: A display module (10), including a drive IC (11) and a power management IC (12). The power management IC (12) comprises a first identification pin (121); the first identification pin (121) is connected to the drive IC (11); under the condition that the power management IC (12) is turned on, the power management IC (12) transmits identification information to the drive IC (11) by means of the first identification pin (121), so that the drive IC (11) identifies the power management IC (12) and is paired with the power management IC (12). A control method, a control apparatus (200), an electronic device (100) and a computer readable storage medium (40).
    Type: Application
    Filed: June 8, 2021
    Publication date: June 22, 2023
    Inventors: Chang ZHANG, Yong YU, Yuanyuan CHAI
  • Patent number: 11651722
    Abstract: The present disclosure provides a method for driving a display device and a driver. The method includes obtaining image data, determining whether the image pixels are detail pixels according to the image data, determining a plurality of screen pixel groups, and driving the screen pixels for display.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: May 16, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qun Jia, Chang Zhang
  • Publication number: 20230095682
    Abstract: Disclosed are an indoor navigating system and an indoor navigating method based on vision. The indoor navigating method comprises capturing a material channel image; segmenting the material channel image to obtain a material pushing machine and a walkable area from the material channel image, and determining boundaries of the material pushing machine and boundaries of the walkable area; obtaining a distance between a left boundary of the material pushing machine and a left rail of a material channel and/or a distance between a right boundary of the material pushing machine and a right rail of the material channel; obtaining a lateral deviation distance of the material pushing machine, and determining a course angle; and adjust an actual moving direction of the material pushing machine according to the course angle.
    Type: Application
    Filed: May 19, 2020
    Publication date: March 30, 2023
    Inventors: Di Wu, WEN-QUAN ZHAO, LIANG CHEN, QI-CHANG ZHANG, WEN-FANG XIAO, ZHI YANG, Yuan Yao
  • Publication number: 20230078889
    Abstract: The present disclosure generally relates to engaging in cross device interactions. The method includes at a first device with a first display, while a second device having a second display is placed over a first region of the first display, detecting, via input devices of the first device, a first input. In response to detecting the first input and in accordance with a determination that the first input occurred while focus was directed to the second device, the method includes causing a response to the first input to be displayed on the second display. In response to detecting the first input and in accordance with a determination that the first input occurred while focus was directed to the first device, the method includes displaying, on the first display, a response to the first input without causing a response to the first input to be displayed on the second display.
    Type: Application
    Filed: August 22, 2022
    Publication date: March 16, 2023
    Inventors: Tianjia SUN, Chang ZHANG, Paul X. WANG, Aaron WANG
  • Publication number: 20230038549
    Abstract: In a method for measuring brain free water content, in response to an RF excitation field generated on the basis of a magnetic resonance fingerprinting sequence and applied to the brain, an equilibrium magnetization mixed term (M0) signal is acquired from radiation emitted by each excited voxel of the brain, to obtain an M0 value of each voxel of the brain; a receive coil sensitivity (RP) value of each voxel of the brain is acquired; the M0 value of each voxel of the brain is divided by the RP value of the corresponding voxel to obtain a proton density (PD) value of each voxel of the brain; a PD value of cerebrospinal fluid is taken to be a reference PD value; and the PD value of each voxel of the brain is divided by the reference PD value to obtain the free water content of each voxel of the brain. The method advantageously increases the speed and accuracy of measurement of brain free water content.
    Type: Application
    Filed: July 29, 2022
    Publication date: February 9, 2023
    Applicants: Siemens Healthineers Ltd., Henan Provincial People's Hospital
    Inventors: Mei Yun Wang, Xian Chang Zhang, Yan Bai, Rui Zhang, Ru Shi Chen
  • Patent number: 11574589
    Abstract: Disclosed are a driving circuit for a display panel, a display module, a compensation method of the display module, and a display device. According to the present disclosure, a TCON circuit board provided with a plurality of sets of reference voltage outputs is used to independently input a reference voltage to each driver chip through a corresponding set of reference voltage input lines, that is, each driver chip receives an independent reference voltage signal, in this way, the reference voltages output by the TCON circuit board corresponding to each driver chip can be adjusted, the reference voltages received by all driver chips are made to be the same voltages.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: February 7, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yong Yu, Zhenwen Hu, Wenhong Liu, Chang Zhang
  • Publication number: 20230029049
    Abstract: A system may include electronic devices that communicate wirelessly. When positioned so that a pair of devices overlap or are adjacent to one another, the devices may operate in a linked mode. During linked operations, devices may communicate wirelessly while input gathering and content displaying operations are shared among the devices. One or both of a pair of devices may have sensors. A capacitive sensor or other sensor may be used to measure the relative position between two devices when the two devices overlap each other. Content displaying operations and other linked mode operations may be performed based on the measured relative position between the two devices and other information.
    Type: Application
    Filed: October 3, 2022
    Publication date: January 26, 2023
    Inventors: Paul X. Wang, Tianjia Sun, Chang Zhang, Dominic P. McCarthy, Eric Shyr, John B. Morrell, John P. Ternus
  • Publication number: 20230027802
    Abstract: A display apparatus and an electronic device. The display apparatus includes a flexible display panel, a plurality of driver integrated circuits, a logic board, and a circuit board. The driver integrated circuits are disposed on a first surface of the flexible display panel and on a peripheral region; and the circuit boards is electrically connected to the driver integrated circuits and the logic board, respectively. A first bendable section of the circuit board is configured to be bent to a second surface of the flexible display panel along a first side edge; a second bendable section of the circuit board is configured to be bent at a side where the second surface is disposed, such that the logic board protrudes from the first side edge; and a third bendable section of the circuit board is configured to bypass a hinge shaft of the electronic device.
    Type: Application
    Filed: May 12, 2021
    Publication date: January 26, 2023
    Inventors: Weihong Wu, Shuang Zhang, Yong Yu, Chang Zhang
  • Publication number: 20230015526
    Abstract: An input device for an electronic device includes an enclosure and a top member defining an input surface having multiple differentiated input regions. The input device further includes a first force sensing system associated with a first area of the top member and including a first group of the differentiated input regions, and a second force sensing system associated with a second area of the top member and including a second group of the differentiated input regions. The input device further includes a touch sensing system configured to determine which input region from the first group of the differentiated input regions corresponds to the first force input and to determine which input region from the second group of the differentiated input regions corresponds to the second force input.
    Type: Application
    Filed: September 22, 2022
    Publication date: January 19, 2023
    Inventors: Alex J. Lehmann, Chang Zhang, Dayu Qu, Kenneth M. Silz, Paul X. Wang, Qiliang Xu, Zheng Gao, Scott J. McEuen, Reza Nasiri Mahalati
  • Patent number: 11545542
    Abstract: A display panel, a display device, and a method for manufacturing a display panel are disclosed. The display panel includes a first power bus and a first power line. A display region of the display panel includes a first region and a second region, the first region and the second region include a plurality of first pixel units, respectively, the first power bus is between the first region and the second region, and the first power line is electrically connected to the first power bus and extends from the first power bus to the first region and the second region, respectively, so as to supply power to the plurality of first pixel units in the first region and the second region, respectively.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: January 3, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Yong Yu, Chang Zhang, Lixia Shen, Qun Jia, Xuerui Gong
  • Patent number: 11533812
    Abstract: The disclosure provides a bonding method, the bonding method includes: bonding first areas of a plurality of flexible printed circuit boards on a substrate, the plurality of flexible printed circuit boards being sequentially arranged along a direction parallel to a first side of the substrate, and a second area of each of the flexible printed circuit boards exceeds the first side; cutting at least one of the flexible printed circuit boards to enable second sides of all the flexible printed circuit boards to be flush and parallel to the first side, wherein each of the second sides is a side of the second area away from the first area; and bonding second areas of the flexible printed circuit boards with a connection circuit board.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: December 20, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing BOE Technology Development Co., Ltd.
    Inventors: Yong Yu, Chang Zhang, Lixia Shen
  • Publication number: 20220367328
    Abstract: The present disclosure relates to a flip-chip and a chip packaging structure. The flip-chip includes: a driver chip having a package surface facing a wiring substrate; and a plurality of conductive connectors. Any one of the plurality of conductive connectors includes a conductive bump connected to the package surface and a conductive extension portion on a side of the conductive bump away from the driver chip.
    Type: Application
    Filed: May 20, 2021
    Publication date: November 17, 2022
    Inventors: YONG YU, Xuerui GONG, Chang ZHANG
  • Patent number: 11500538
    Abstract: An input device for an electronic device includes an enclosure and a top member defining an input surface having multiple differentiated input regions. The input device further includes a first force sensing system associated with a first area of the top member and including a first group of the differentiated input regions, and a second force sensing system associated with a second area of the top member and including a second group of the differentiated input regions. The input device further includes a touch sensing system configured to determine which input region from the first group of the differentiated input regions corresponds to the first force input and to determine which input region from the second group of the differentiated input regions corresponds to the second force input.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: November 15, 2022
    Assignee: Apple Inc.
    Inventors: Alex J. Lehmann, Chang Zhang, Dayu Qu, Kenneth M. Silz, Paul X. Wang, Qiliang Xu, Zheng Gao, Scott J. McEuen, Reza Nasiri Mahalati
  • Publication number: 20220326777
    Abstract: A portable computer includes a display portion comprising a display and a base portion pivotally coupled to the display portion. The base portion may include a bottom case and a top case, formed from a dielectric material, coupled to the bottom case. The top case may include a top member defining a top surface of the base portion and a sidewall integrally formed with the top member and defining a side surface of the base portion. The portable computer may also include a sensing system including a first sensing system configured to determine a location of a touch input applied to the top surface of the base portion and a second sensing system configured to determine a force of the touch input.
    Type: Application
    Filed: June 17, 2022
    Publication date: October 13, 2022
    Inventors: Christiaan A. Ligtenberg, Brett W. Degner, Ron A. Hopkinson, Asif Hussain, Dinesh C. Mathew, Mikael M. Silvanto, Chang Zhang, Zheng Gao, Robert Y. Cao, Keith J. Hendren, Bryan W. Posner, Simon R. Lancaster-Larocque, Alex J. Lehmann