Patents by Inventor Yifei Zhang

Yifei 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: 20250093652
    Abstract: One example provides a head mounted display (HMD) device comprising a projection system and left eye and right eye display optical paths configured to transmit left eye and right eye images for viewing. The projection system comprises left and right display image projectors. The HMD device further comprises a display alignment tracker (DAT) system comprising a DAT optical path comprising left side and right side DAT optical paths. The DAT system further comprises a camera coupled to an output of the DAT optical path, and a visible light filter located along the DAT optical path. The HMD device further comprises a controller configured to control the projection system to output a fiducial image comprising a visible color of light transmitted by the visible light filter and to blank the visible color of the fiducial image from a fiducial portion of both the left and right eye images.
    Type: Application
    Filed: September 19, 2023
    Publication date: March 20, 2025
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Lasse-Petteri LEPPANEN, Xiao Chuan ONG, Yarn Chee POON, Yifei ZHANG, Wyatt Owen DAVIS, Matthew David ELLIS, Algird Michael GUDAITIS, Akash ARORA
  • Publication number: 20250072184
    Abstract: An epitaxial wafer structure, an epitaxial function device, and manufacturing methods thereof are provided in the present disclosure. The epitaxial wafer structure is configured to be bonded to a driver substrate provided with a plurality of driver units including a plurality of non-defective driver units and a plurality of defective driver units. The epitaxial wafer structure includes a carrier substrate, a plurality of functional units disposed on the carrier substrate, and a plurality of placeholder units disposed on the carrier substrate. Each of the plurality of functional units on the carrier substrate is corresponding in position to one of the plurality of non-defective driver units on the driver substrate. Each of the plurality of placeholder units on the carrier substrate is corresponding in position to one of the plurality of defective driver units on the driver substrate.
    Type: Application
    Filed: December 18, 2023
    Publication date: February 27, 2025
    Inventors: Ying QIN, Yifei ZHANG, Lina CHEN
  • Publication number: 20250068557
    Abstract: The embodiments of the present disclosure provide a memory allocating method, an electronic device, and a computer-readable storage medium. The method includes: allocating a first memory space of a preset size to a first thread to be allocated memory, and configuring a first bitmap having a mapping relationship with the first memory space; consecutively allocating memory in the first memory space according to a size of each of objects to be allocated memory in the first thread, and identifying a memory starting address of each of the objects in the first bitmap based on the mapping relationship.
    Type: Application
    Filed: August 2, 2024
    Publication date: February 27, 2025
    Inventors: Yifei ZHANG, Chuansheng LU, Xiangdong JI, Deyu WANG
  • Patent number: 12238352
    Abstract: A studio control room including a first master control device, a master transmission route and a standby transmission route are provided. The first master control device is configured to transmit an audio/video broadcast control signal to a broadcast major structure through the master transmission route and the standby transmission route. The embodiment of the present disclosure further provides a broadcast major structure including a master broadcast control route and a standby broadcast control route. The master broadcast control route and the standby broadcast control route each are configured to receive the audio/video broadcast control signal sent by the studio control room and play the audio/video file according to the audio/video broadcast control signal. The embodiment of the present disclosure provides a broadcast control system including above studio control room and broadcast major structure. The studio control room is coupled to the broadcast major structure.
    Type: Grant
    Filed: January 30, 2022
    Date of Patent: February 25, 2025
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yifei Zhang, Enhui Guan
  • Patent number: 12237427
    Abstract: A tuning method for active metamaterials using IGZO Schottky diodes, wherein the IGZO Schottky diode comprises a substrate, a Schottky electrode, amorphous IGZO active layer, and an ohmic electrode from the bottom up. The method comprises steps as follows: (1) Metamaterials are used as the Schottky electrodes, and amorphous IGZO active layers are used to fully cover the capacitive gap structures in the metamaterials; such capacitive structures in the metamaterials are bonded to the amorphous IGZO active layers to form Shottky barriers; (2) The resulting IGZO Schottky diodes from step (1) are used to tune the metamaterials dynamically.
    Type: Grant
    Filed: June 28, 2020
    Date of Patent: February 25, 2025
    Assignee: SHAN DONG UNIVERSITY
    Inventors: Yifei Zhang, Aimin Song, Haotian Ling, Qingpu Wang
  • Patent number: 12189219
    Abstract: Reversible phase-change materials (PCMs) can be added to or incorporated into meta-lenses, wave plates, waveguides, gratings, and other optical components to form active optical devices with controllable and adjustable optical characteristics. Local heating can be used to induce solid-state phase changes and large refractive index changes in the PCMs. The phase and index changes can provide large changes in the device's optical characteristics. Optical devices with PCM can be used for imaging applications, orbital angular momentum control, photonic integrated circuits and optical communication systems, beam steering, and other application.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: January 7, 2025
    Assignee: Massachusetts Institute of Technology
    Inventors: Juejun Hu, Tian Gu, Yifei Zhang, Carlos Andres Rios Ocampo, Mikhail Shalaginov, Xiaoming Qiu
  • Publication number: 20240426837
    Abstract: The present invention provides a recombinant thyroid stimulating hormone receptor protein, a preparation method therefor and an application thereof. The recombinant thyroid stimulating hormone receptor protein comprises a TSHR protein extracellular segment and a TSHR protein intracellular segment. The C-terminus of the TSHR protein extracellular segment is linked to the N-terminus of the TSHR protein intracellular segment. The protein achieves extracellular soluble expression, and is high in purity, high in activity and good in stability.
    Type: Application
    Filed: June 30, 2022
    Publication date: December 26, 2024
    Applicants: XIAMEN INNOBIOMAX BIOTECHNOLOGY CO., LTD., XIAMEN INNODX BIOTECH CO., LTD.
    Inventors: Haihong WANG, Qishen KE, Mengwen ZOU, Cuizhen ZHUANG, Lihua LI, Huiping LI, Weibin CHEN, Shaojun KE, Yifei ZHANG, Qiumin LIN, Liuwei SONG, Junhui XIONG
  • Publication number: 20240402493
    Abstract: Optical filters are disclosed for reducing leakage of light used for virtual images from a mixed-reality head-mounted display (HMD) device having a waveguide combiner. The optical filters include spectral-sensitive wideband and narrowband reflectors comprising triple-notch filters or single-notch filters that reflect forward-propagating virtual image light back to a user's eyes. The optical filters further include light deflectors having planar and curved configurations comprising volume Bragg gratings (VBGs), liquid crystal Bragg gratings, and partially-reflective mirror arrays. A light deflector steers forward-propagating virtual image light to impart an angular change in propagation direction. The steered light is absorbed and/or diffused by structures in the HMD device and/or deflected to prevent the outward appearance of virtual image overlay with the HMD device user's eyes.
    Type: Application
    Filed: May 31, 2023
    Publication date: December 5, 2024
    Inventors: Yarn Chee POON, Mark T. BOLAS, Ishan CHATTERJEE, Bernard C. KRESS, Yifei ZHANG
  • Publication number: 20240383500
    Abstract: A method of managing a condition of a shared ride provided using an autonomous vehicle (AV) is described and includes determining individual preferences for the condition expressed by passengers participating in the shared ride; determining a consensus preference for the condition based on the individual preferences; and applying the consensus preference for the condition for at least a portion of the shared ride, wherein the applying the consensus preference for the condition comprises managing settings of the AV, including settings of a cabin of the AV.
    Type: Application
    Filed: May 17, 2023
    Publication date: November 21, 2024
    Applicant: GM Cruise Holdings LLC
    Inventors: Jennifer Devar McKnew, Alexander Willem Gerrese, Spencer Lee James, Yifei Zhang
  • Publication number: 20240321648
    Abstract: A method for manufacturing wafers is provided, including: forming, according to a first control parameter, a first oxidation layer on each wafer of a first batch of wafers under a first atmospheric pressure; in response to receiving a process request corresponding to a second batch of wafers: detecting a second atmospheric pressure in the process tube; determining an atmospheric pressure change between the second atmospheric pressure and the first atmospheric pressure; selecting, according to a corresponding ratio of each of multiple process recipes, an acceptable process recipe among the process recipes; determining a thickness difference between the second thickness and the first thickness; generating a second control parameter according to the atmospheric pressure change, the thickness difference, and the first control parameter; and forming a second oxidation layer on each wafer of the second batch of wafers under the second pressure according to the second control parameter.
    Type: Application
    Filed: April 24, 2023
    Publication date: September 26, 2024
    Applicants: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., TSMC China Company Limited
    Inventors: Xiaoguang LI, Yifei Zhang, Jinping WU
  • Patent number: 12094345
    Abstract: A fleet management system coordinates multiple autonomous vehicles (AVs) to transport a group of passengers from one location to another. A single user can submit a request to the fleet management system to provide a ride for the group, the request specifying the number of passengers and the pickup location. The fleet management system determines a number of AVs to transport the group based on the number passengers, and dispatches this number of AVs to the pickup location. The AVs pick up the passengers at the pickup location, drive the passengers to a destination, and drop the passengers off at the destination.
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: September 17, 2024
    Assignee: GM Cruise Holdings LLC
    Inventors: Jeffrey Brandon, Alexander Willem Gerrese, Yifei Zhang, Jeremy Stephen Juel
  • Patent number: 12093168
    Abstract: The present disclosure relates to a conditional branch coverage calculation method and device, computer apparatus, storage medium and computer program product. The method includes: acquiring code types of uncovered conditional branch code lines in target code, and acquiring comment information corresponding to the uncovered conditional branch code lines according to the code type; acquiring coverage parameter corresponding to the uncovered conditional branch code lines according to the comment information corresponding to the uncovered conditional branch code lines; and calculating a conditional branch coverage corresponding to the target code according to the coverage parameters corresponding to the uncovered conditional branch code lines and a total number of conditional branch code lines in the target code.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: September 17, 2024
    Assignee: Glenfly Tech Co., Ltd.
    Inventors: Liwen Zhou, Guanfang Xiang, Yunfeng Zhou, Yifei Zhang
  • Publication number: 20240291293
    Abstract: The power consumption management circuit receives an activation signal, and controls at least one switch transistor to be turned on, so that the auxiliary source is powered on, and the auxiliary source supplies power to the main control chip. After the auxiliary source is powered on, the main control chip sends a maintenance signal to the power consumption management circuit, and the power consumption management circuit controls at least one switch transistor to be turned on, so that the auxiliary source continuously operates. When determining that an energy equalization requirement is completed or determining that a low power consumption mode needs to be entered, the main control chip sends a cut-off signal to the power consumption management circuit, and the power consumption management circuit controls at least one switch transistor to be turned off, so that the auxiliary source stops operating.
    Type: Application
    Filed: March 21, 2024
    Publication date: August 29, 2024
    Inventors: Yihong Wu, Haibin Guo, Yifei Zhang, Huajia Li
  • Patent number: 12075506
    Abstract: A method for rejoining a network after network disconnection of a mobile terminal and related devices are provided. The method includes: a gateway determining whether to disconnect from a target mobile terminal; if yes, feeding back network disconnection information of the target mobile terminal to a server; receiving a supplementary broadcast frame instruction sent by the server; and the gateway sending a supplementary broadcast frame according to the supplementary broadcast frame instruction.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: August 27, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Wei Deng, Yifei Zhang, Kai Zhao
  • Publication number: 20240283990
    Abstract: The embodiment of the present disclosure provides a studio control room including a first master control device, a master transmission route and a standby transmission route. The first master control device is configured to transmit an audio/video broadcast control signal to a broadcast major structure through the master transmission route and the standby transmission route. The embodiment of the present disclosure further provides a broadcast major structure including a master broadcast control route and a standby broadcast control route. The master broadcast control route and the standby broadcast control route each are configured to receive the audio/video broadcast control signal sent by the studio control room and play the audio/video file according to the audio/video broadcast control signal. The embodiment of the present disclosure provides a broadcast control system including above studio control room and broadcast major structure. The studio control room is coupled to the broadcast major structure.
    Type: Application
    Filed: January 30, 2022
    Publication date: August 22, 2024
    Inventors: Yifei ZHANG, Enhui GUAN
  • Patent number: 12024871
    Abstract: A mechanical control logic actuator for a vacuum toilet includes: a pneumatic valve assembly configured to control an air path of the vacuum toilet and a sewage tank; a vacuum tank configured to provide vacuum compensation for the sewage tank; a first pressure tank configured to provide a power source for the pneumatic valve assembly; a second pressure tank configured to feed gas into the sewage tank; and a sewage pipe configured to discharge sewage in the sewage tank; wherein the first pressure tank controls the air path to be in a circulation state or in a cut-off state through the pneumatic valve assembly, the vacuum tank provides vacuum compensation for the sewage tank, the sewage in the toilet is pumped into the sewage tank, the second pressure tank feeds gas into the sewage tank, the sewage tank is pressurized and the sewage is discharged through the sewage pipe.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: July 2, 2024
    Assignee: CHINA JILIANG UNIVERSITY
    Inventors: Jiadi Lian, Jing Xu, Bifeng Chen, Jiayu Lian, Yifei Zhang
  • Patent number: 11984974
    Abstract: A method for transmitting data includes: sending, by a server, a first message to a target terminal in response to determining that target data corresponding to the target terminal is long data, wherein the first message is intended to instruct the target terminal to enable a long data transmission mode before a first moment, and the long data is data untransmittable between a terminal and a gateway within one time slot; and sending, by the server, a second message to a first gateway, wherein the second message is intended to instruct the first gateway to enable the long data transmission mode before the first moment to receive the target data from the server, and the target data is sent to the target terminal from the first moment.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: May 14, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Deng, Yifei Zhang, Hongtao Guan
  • Patent number: 11984700
    Abstract: A display system includes an integrated laser and modulator device and a display assembly. The integrated laser and modulator device includes a laser component configured to facilitate light emission responsive to applied current and a modulator component configured to selectively modulate light responsive to applied signal. The modulator component is integrally coupled to the laser component via a bridging structure that intervenes between the laser component and the modulator component. At least a portion of the bridging structure facilitates power reflectivity into a laser cavity of the laser component. The bridging structure facilitates transmission of light emitted by the laser component into the modulator component for modulation by the modulator component to provide modulated light. The display assembly is configured to direct the modulated light provided by the integrated laser and modulator device to illuminate pixels to form an image.
    Type: Grant
    Filed: October 5, 2022
    Date of Patent: May 14, 2024
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Yifei Zhang, Thomas Hamish Barter
  • Publication number: 20240118468
    Abstract: A rainbow artifact mitigation system includes an angular dependent filter configured to receive light and to transmit light according to one or more angular transmission functions. The one or more angular transmission functions define light transmission as a function of incident angle for the angular dependent filter, The angular dependent filter is configured to at least partially mitigate transmission of light for at least some incident angles above 40°. The angular dependent filter comprises a plurality of nanostructures, and the nanostructures of the plurality of nanostructures are arranged in an array with one or more sub-wavelength periods. The one or more angular transmission functions comprise at least two different angular transmission functions for different regions of the angular dependent filter.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 11, 2024
    Inventors: Yifei ZHANG, Yarn Chee POON, Mathew David WATSON
  • Publication number: 20240120707
    Abstract: A display system includes an integrated laser and modulator device and a display assembly. The integrated laser and modulator device includes a laser component configured to facilitate light emission responsive to applied current and a modulator component configured to selectively modulate light responsive to applied signal. The modulator component is integrally coupled to the laser component via a bridging structure that intervenes between the laser component and the modulator component. At least a portion of the bridging structure facilitates power reflectivity into a laser cavity of the laser component. The bridging structure facilitates transmission of light emitted by the laser component into the modulator component for modulation by the modulator component to provide modulated light. The display assembly is configured to direct the modulated light provided by the integrated laser and modulator device to illuminate pixels to form an image.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 11, 2024
    Inventors: Yifei ZHANG, Thomas Hamish BARTER