Patents by Inventor Wei Zhou

Wei Zhou 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).

  • IMAGE PROCESSING METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM
    Publication number: 20230245420
    Abstract: An image processing method and apparatus may be provided. The process may include, obtaining source compressed texture data of a target image by encoding the target image by using a source compressed texture format and determining a target compressed texture format adapted to the display card and a target compressed block size corresponding to the target compressed texture format. The process may also include obtaining a plurality of pieces of image texture data, based on decoding and aligning the source compressed texture data by using the target compressed block size, and obtaining target compressed texture data of the target image, based on transcoding each piece of the plurality of pieces of image texture data by using the target compressed texture format and the target compressed block size. The process may also include rendering the target image based on the target compressed texture data.
    Type: Application
    Filed: April 7, 2023
    Publication date: August 3, 2023
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Zhiqiang YUAN, Yandong Yang, Wenyan Li, Rongxin Zhou, Lei Liu, Xinda Zhao, Zhipeng Gong, Hao Yang, Chen Cao, Wei Zhou
  • GRINDABLE HEAT SINK FOR MULTIPLE DIE PACKAGING
    Publication number: 20230238300
    Abstract: A semiconductor package can include a semiconductor die stack including a top die and one or more core dies below the top die. The semiconductor package can further include a metal heat sink plated on a top surface of the top die and have a plurality of side surfaces coplanar with corresponding ones of a plurality of sidewalls of the semiconductor die stack. A molding can surround the stack of semiconductor dies and the metal heat sink, the molding including a top surface coplanar with an exposed upper surface of the metal heat sink. The top surface of the molding and the exposed upper surface of the metal heat sink are both mechanically altered. For example, the metal heat sink and the molding can be simultaneously ground with a grinding disc and can show grinding marks as a result.
    Type: Application
    Filed: January 24, 2022
    Publication date: July 27, 2023
    Inventors: Wei Zhou, Bret K. Street, Kyle K. Kirby
  • FIBER PRE-DISPERSING DEVICE FOR FIBER REINFORCED CONCRETE
    Publication number: 20230234260
    Abstract: A fiber pre-dispersing device for fiber reinforced concrete, comprising: a dispersing chamber, a feed inlet is installed on the upper side of a dispersing chamber, a hopper is installed in the feed inlet, a first dispersing device is installed in the dispersing chamber, a discharge outlet is installed at the bottom of the dispersing chamber, and connected with a second dispersing device, grooves are arranged at both sides of dispersing chamber, supporting legs are installed in the grooves.
    Type: Application
    Filed: December 12, 2022
    Publication date: July 27, 2023
    Inventors: Jianqiang Chen, Yutian Wang, Wei Zhou, Enbo Fan, Taiyan Liu, Lingbo Meng, Xun Wang, Zhen Xu, Junwei Liu, Xiaoyu Bai
  • Waveguide calibration
    Patent number: 11709325
    Abstract: A method for aligning the projection of a first light source with an in-coupler of a waveguide, the method including supplying a secondary light source through an optical path of the waveguide to exit at the in-coupler of the waveguide as an exit light; determining the concentricity of the exit light with respect to the first light source; and improving the concentricity of the exit light with respect to the first light source by adjusting the positioning of the first light source such that the exit light becomes concentric with the projection of the first light source.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: July 25, 2023
    Assignee: MLOptic Corp.
    Inventors: Jiang He, Wei Zhou, Wei Wang
  • ALGORITHM TO CORRECT CAMERA EARLY SATURATION FLOOR FOR AUTOEXPOSURE ALGORITHM
    Publication number: 20230232111
    Abstract: A method for controlling an autoexposure function of a camera to a gray level setting, the method including establishing a critical exposure time of an image sensing device of the camera, wherein the critical exposure time of the image sensing device of the camera is an exposure time at which a first sensed gray level of the image sensing device of the camera is disposed at a target gray level, the sensed gray level is disposed in a trend of decreasing sensed gray level values; exposing the image sensing device of the camera to light to obtain a second sensed gray level and comparing the second sensed gray level at the critical exposure time to the target gray level, if the second sensed gray level is disposed at least at the target gray level, limiting the exposure of the image sensing device of the camera to the critical exposure time.
    Type: Application
    Filed: December 31, 2021
    Publication date: July 20, 2023
    Inventors: Wei Zhou, Nathan Yang, Wei Wang
  • D-xylulose 4-epimerase, mutants and uses thereof
    Publication number: 20230220433
    Abstract: The present disclosure relates to D-xylulose 4-epimerase, mutants thereof, and uses thereof. Specifically, the present disclosure relates to a polypeptide having D-xylulose 4-epimerase activity, a method for preparing said polypeptide, and use of said polypeptide in the preparation of L-pentose using D-xylose or D-xylulose as a raw material. Compared with the traditional preparation method in the prior art, the new method for preparing L-pentose discovered in the present disclosure has simpler production process and reduces the cost of producing L-pentose.
    Type: Application
    Filed: December 2, 2020
    Publication date: July 13, 2023
    Inventors: Yi-Heng Percival Zhang, Wei Zhou
  • METHODS, SYSTEMS, AND MEDIA FOR CONTEXT-AWARE ESTIMATION OF STUDENT ATTENTION IN ONLINE LEARNING
    Publication number: 20230222932
    Abstract: Methods, systems and media for context-aware estimation of student attention in online learning are described. An attention monitoring system filters or restricts the time periods in which student attention is monitored or assessed to those time periods in which student attention is important. These time periods of high attention importance may be determined by processing data from the teacher, such as audio data representing the teacher's voice and/or visual presentation data representing slides or other visual material being presented to the students. Various types of presenter data from the teacher and attendee data from the students may be used in assessing the importance of attention and each student's attention during each time period. The presenter may be provided with feedback in various forms showing student attention performance aggregated or segmented according to various criteria.
    Type: Application
    Filed: March 14, 2023
    Publication date: July 13, 2023
    Inventors: Wei ZHOU, Mona HOSSEINKHANI LOORAK, Sachi MIZOBUCHI, XIU YI, Juntao YE, Liang HU, Wei LI
  • VEHICLE REMINDING METHOD AND SYSTEM, AND RELATED DEVICE
    Publication number: 20230222914
    Abstract: A vehicle reminding method and system, and a related device are provided. The method includes: obtaining detection information, where the detection information includes related information that is of a target vehicle and that is collected by a sensor of an ego vehicle; performing collision analysis based on the detection information; and reminding the target vehicle of a collision risk.
    Type: Application
    Filed: March 13, 2023
    Publication date: July 13, 2023
    Inventors: Wei ZHOU, Bingxue WANG, Cunlian WANG
  • A RANDOM ACCESS REAL-TIME QUANTITATIVE POLYMERASE CHAIN REACTION (qPCR) REACTOR SYSTEM
    Publication number: 20230219095
    Abstract: The present random access PCR reactor for biological analysis, comprises of a number of PCR reactors held on a platform, and one optical system to be shared by all of the PCR reactors on the platform. The optical system is held on a traverse mechanism to move it over any one of the PCR reactors that are ready to be imaged. Other PCR reactors on the platform can be accesses and replaced. The optical system has a lightpipe and a lightguide that distributes a uniform light over all the samples held on the reactor. The lightguide of the present optical system has a set of light reflecting structures that are strategically located to uniformly reflect an incoming light towards all the samples held in the PCR reactor that is being tested.
    Type: Application
    Filed: May 19, 2020
    Publication date: July 13, 2023
    Applicant: MOLARRAY RESEARCH INC.
    Inventors: Hsin-Chin LEE, Kai On NG, Frank Wei ZHOU, Yuan Min WU
  • Wireless single-phase AC-to-AC conversion circuit based on 2.4G microwave
    Patent number: 11700025
    Abstract: A wireless single-phase AC-to-AC conversion circuit based on a 2.4G microwave includes a receiving antenna unit, a RF switch unit, a positive voltage rectification unit, a negative voltage rectification unit and an AC synthesis unit. An output port of the receiving antenna unit is connected to the common input port of the RF switch unit. A first microwave output end of the RF switch unit and a second microwave output end of the RF switch unit are correspondingly connected to a microwave input end of the positive voltage rectification unit and a microwave input end of the negative voltage rectification unit, respectively. A DC output end of the positive voltage rectification unit and a DC output end of the negative voltage rectification unit are correspondingly connected to a positive voltage input port of the AC synthesis unit and a negative voltage input port of the AC synthesis unit, respectively.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: July 11, 2023
    Assignee: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Xiaoning Li, Wei Zhou, Zidong Zhang, Xin Fang, Shijun Shen, Dawei Gong, Dejie Li
  • METHOD AND SYSTEM FOR RECOGNIZING GEOMETRIC REGULARITY IMAGE OF HONEYCOMB STRUCTURE
    Publication number: 20230214987
    Abstract: The present invention discloses a method and system for recognizing a geometric regularity image of a honeycomb structure. The method includes the steps of image acquisition, image processing, vertex extraction, cell reconstruction, and quality evaluation, wherein a step of binaryzation is set between the step of image processing and the step of vertex extraction, and is to set a pixel value of a background in the image to be 0 and set a pixel value of a honeycomb skeleton in the image to be 1 to form a binary image, and the step of quality evaluation is to calculate angular deviation values of all the cells and an average thereof as well as linear deviation values and an average thereof based on the reconstructed cell image, and determine whether the honeycomb structure is qualified or not by comparing with a set tolerance zone.
    Type: Application
    Filed: August 18, 2020
    Publication date: July 6, 2023
    Inventors: Zhonggang WANG, Xifeng LIANG, Chong SHI, Wei ZHOU, Can CUI, Wei XIONG, Xinxin WANG
  • PRMT5 INHIBITOR COMPOUNDS
    Publication number: 20230212143
    Abstract: A series of PRMT5 inhibitor compounds are described. The compounds are useful as PRMT5 inhibitor compounds and in the treatment of PRMT5 mediated diseases, disorders, and symptoms thereof.
    Type: Application
    Filed: March 27, 2020
    Publication date: July 6, 2023
    Applicant: University of Florida Research Foundation, Incorporated
    Inventors: Chenglong Li, Xiaozhi Yang, Wei Zhou
  • Flexible Optical Apparatus To Extend Effective Aperture Of Collimator For AR/VR Binocular Alignment
    Publication number: 20230213759
    Abstract: A system for extending the effective aperture of an optical output in a direction parallel to the optical axis of the optical output, the system including a beam splitter configured for receiving an output beam of the optical output along the optical axis of the optical output, the beam splitter configured for splitting the output beam into two light beams; a central mirror for receiving and directing a first of the two light beams from the beam splitter; and a pair of motorized mirrors each motorized mirror including a mobility mechanism and a mirror functionally connected to the mobility mechanism, each of the motorized mirrors is configured to be movable in a direction orthogonal to the optical axis, wherein the optical output is extended to the two light beams separated by a pupil distance adjustable by controlling at least a mobility mechanism of one of the pair of motorized mirrors.
    Type: Application
    Filed: December 30, 2021
    Publication date: July 6, 2023
    Inventors: Wei Zhou, Jiang He, Siyuan Liang, Huayu Gu
  • Tensile testing device including a tensile testing fixture for improved specimen tensile stress accuracy
    Patent number: 11692917
    Abstract: A tensile testing fixture and a tensile testing device with improved specimen tensile stress accuracy are provided. The fixture includes a base, an adjusting mechanism disposed on the base, a floating mechanism disposed on and connected to the adjusting mechanism, a lower head disposed on and connected to the floating mechanism, and an upper head disposed above the lower head. The floating mechanism is configured to transmit a pulling force of the lower head to the adjusting mechanism. The adjusting mechanism is configured to adjust a position of the floating mechanism in a horizontal direction under the pulling force. The floating mechanism is further configured to adjust a position of the lower head in the horizontal direction, causing the lower head and the upper head to be coaxial in a vertical direction.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: July 4, 2023
    Assignee: TRIPLE WIN TECHNOLOGY (SHENZHEN) CO. LTD.
    Inventors: Wei Zhou, Hai-Ping Wang, Yu-Mei Deng
  • Methods and systems of display edge interactions in a gesture-controlled device
    Patent number: 11693483
    Abstract: Method and systems for controlling a display device, including detecting a mid-air gesture using a sensing device; mapping the detected mid-air gesture to locations of an interaction region, the interaction region including an on-screen region of the display device and an off-screen region that is located outside an edge of the on-screen region; and performing a display device control action upon detecting an edge interaction based on the mapping of the detected mid-air gesture to locations that interact with the edge of the on-screen region.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: July 4, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Gaganpreet Singh, Wei Zhou, Pourang Polad Irani, Wei Li
  • Systems and methods for controlling virtual widgets in a gesture-controlled device
    Patent number: 11693482
    Abstract: A gesture-controlled device and a method thereon are provided. The method includes capturing a plurality of video frames of a user's body and processing the plurality of video frames to allow detecting a portion of the user's body and to allow recognizing hand gestures. In response to detecting the portion of the user's body, the method includes generating at least one widget interaction region corresponding to the portion of the user's body. The method further includes recognizing, a mid-air hand gesture in the at least one widget interaction region, mapping the mid-air hand gesture to at least one virtual widget on the gesture-controlled device, and manipulating the at least one virtual widget based on the mid-air hand gesture. The method and device allow manipulation of virtual widgets using mid-air gestures on a gesture-controlled device.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: July 4, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Mona Hosseinkhani Loorak, Wei Zhou, Gaganpreet Singh, Xiu Yi, Wei Li
  • Methods and systems for providing feedback for multi-precision mid-air gestures on a gesture-controlled device
    Patent number: 11693551
    Abstract: Devices and methods for providing feedback for a control display (CD) gain of a slider control on a gesture-controlled device are described. The method includes detecting a speed of a dynamic dragging gesture, determining the CD gain for the slider control based on the speed, and generating an auditory feedback or a visual feedback for the CD gain. A gesture-controlled device, which carries out the method, may have an image-capturing device, a processor, and a memory coupled to the processor, the memory storing machine-executable instructions for carrying out the method. Advantageously, providing feedback for CD gain of a slider control facilitates accurate adjustment of a system parameter associated with the slider control. The devices and methods may be used in industrial applications, vehicle control among other applications.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: July 4, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Wei Zhou, Sachi Mizobuchi, Gaganpreet Singh, Ghazaleh Saniee-Monfared, Sitao Wang, Futian Zhang, Wei Li
  • Electromagnetic wave-trapping device
    Patent number: 11694819
    Abstract: An electromagnetic wave-trapping device including two surfaces, each disposed in a plane, the two surfaces disposed at a first angle with respect to one another to form an opening, one of the two surfaces is configured to be orientated such that an incident electromagnetic ray through the opening, is disposed at a second angle with respect to the one of the two surfaces.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: July 4, 2023
    Assignee: MLOptic Corp.
    Inventors: Pengfei Wu, Wei Zhou
  • NOVEL PRISM TO ENABLE LARGE FOV HIGH RESOLUTION SAMPLING WITH SMALLER FOV IMAGING SYSTEM
    Publication number: 20230204831
    Abstract: A prism module for enabling a large field of view high resolution sampling of incoming rays, the prism module including a plurality of elongated prisms disposed about a central axis, each of the prisms including a fore surface; an aft surface; and a reflecting surface connected on a first edge to the fore surface and connected on a second edge to the aft surface, wherein the fore surface is configured to receive the incoming light rays orthogonally disposed with respect to the fore surface, the reflecting surface configured to reflect the incoming light rays to cause outgoing light rays to exit at a right angle through the aft surface to form an image with a maximum distortion not recognizable by a human eye.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 29, 2023
    Inventors: Pengfei Wu, Wei Zhou, Jiang He, Siyuan Liang
  • THREE-ELECTRODE BATTERY AND ENERGY STORAGE SYSTEM
    Publication number: 20230207893
    Abstract: A three-electrode battery (10) and an energy storage system are disclosed. The three-electrode battery (10) includes a battery management unit (14), a housing (11), and a reference electrode (13) and a battery cell (12) that are disposed in the housing (11). A detection part (131) of the reference electrode (13) is located in the battery cell (12). A reference electrode tab (132) is located outside the battery cell (12). The battery management unit (14) is connected to the reference electrode tab (132) and a negative electrode tab (122) of the battery cell (12), so that a voltage between the reference electrode (13) and a negative electrode of the battery cell (12) can be collected in real time, and a charging current of the battery (10) is controlled based on the negative electrode potential, so that the charging current can be optimized and adjusted in real time.
    Type: Application
    Filed: March 2, 2023
    Publication date: June 29, 2023
    Applicant: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Yezheng Zhang, Weihong Xia, Bin Le, Guanghui Zhang, Wei Zhou, Xue Qin