Patents by Inventor Zelin Zhang

Zelin 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).

  • Patent number: 11842436
    Abstract: Techniques are disclosed relating to arbitration for computer memory resources. In some embodiments, an apparatus includes queue circuitry that implements multiple queues configured to queue requests to access a memory bus. Control circuitry may, in response to detecting a first threshold condition associated with the queue circuitry, generate a first snapshot that indicates numbers of requests in respective queues of the multiple queues at a first time. The control circuitry may generate a second snapshot that indicates numbers of requests in respective queues of the multiple queues at a second time that is subsequent to the first time. The control circuitry may arbitrate between requests from the multiple queues to select requests to access the memory bus, where the arbitration is based on snapshots to which requests from the multiple queues belong. Disclosed techniques may approximate age-based scheduling while reducing area and power consumption.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: December 12, 2023
    Assignee: Apple Inc.
    Inventors: Winnie W. Yeung, Leela Kishore Kothamasu, Zelin Zhang, Guanlan Xu, Eddie M. Robinson
  • Patent number: 11630926
    Abstract: The present invention discloses an optimization method for a screen surface dynamic load of a vibrating screen. The method includes the following steps: step 1. selecting design variables, and establishing an experimental matrix; step 2. performing a response curved surface experiment; step 3. establishing two double-objective optimization models and solving the same to obtain two groups of Pareto solution sets, wherein the solution sets respectively represent screening efficiency optimization paths of the vibrating screen under the conditions of a high screen surface dynamic load and a low screen surface dynamic load; and step 4. calculating an optimization space for a screen surface dynamic load under a high screening efficiency. According to the method of the present invention, the screen surface dynamic load can be directly reduced, and the service life of the screen surface and the whole vibrating screen is prolonged.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: April 18, 2023
    Assignee: Wuhan University of Science and Technology
    Inventors: Lei Wang, Yuyao Guo, Zelin Zhang, Xuhui Xia, Jie Long, Xiang Liu, Weimin Jing, Xuguo Yan, Baotong Chen, Tong Wang, Jianhua Cao, Huan Zhang, Jinliang Zhou, Wu Guo
  • Publication number: 20230077394
    Abstract: The present invention discloses an optimization method for a screen surface dynamic load of a vibrating screen. The method includes the following steps: step 1. selecting design variables, and establishing an experimental matrix; step 2. performing a response curved surface experiment; step 3. establishing two double-objective optimization models and solving the same to obtain two groups of Pareto solution sets, wherein the solution sets respectively represent screening efficiency optimization paths of the vibrating screen under the conditions of a high screen surface dynamic load and a low screen surface dynamic load; and step 4. calculating an optimization space for a screen surface dynamic load under a high screening efficiency. According to the method of the present invention, the screen surface dynamic load can be directly reduced, and the service life of the screen surface and the whole vibrating screen is prolonged.
    Type: Application
    Filed: July 21, 2022
    Publication date: March 16, 2023
    Applicant: Wuhan University of Science and Technology
    Inventors: Lei WANG, Yuyao GUO, Zelin ZHANG, Xuhui XIA, Jie LONG, Xiang LIU, Weimin JING, Xuguo YAN, Baotong CHEN, Tong WANG, Jianhua CAO, Huan ZHANG, Jinliang ZHOU, Wu GUO
  • Publication number: 20220375161
    Abstract: Techniques are disclosed relating to arbitration for computer memory resources. In some embodiments, an apparatus includes queue circuitry that implements multiple queues configured to queue requests to access a memory bus. Control circuitry may, in response to detecting a first threshold condition associated with the queue circuitry, generate a first snapshot that indicates numbers of requests in respective queues of the multiple queues at a first time. The control circuitry may generate a second snapshot that indicates numbers of requests in respective queues of the multiple queues at a second time that is subsequent to the first time. The control circuitry may arbitrate between requests from the multiple queues to select requests to access the memory bus, where the arbitration is based on snapshots to which requests from the multiple queues belong. Disclosed techniques may approximate age-based scheduling while reducing area and power consumption.
    Type: Application
    Filed: August 1, 2022
    Publication date: November 24, 2022
    Inventors: Winnie W. Yeung, Leela Kishore Kothamasu, Zelin Zhang, Guanlan Xu, Eddie M. Robinson
  • Patent number: 11443479
    Abstract: Techniques are disclosed relating to arbitration for computer memory resources. In some embodiments, an apparatus includes queue circuitry that implements multiple queues configured to queue requests to access a memory bus. Control circuitry may, in response to detecting a first threshold condition associated with the queue circuitry, generate a first snapshot that indicates numbers of requests in respective queues of the multiple queues at a first time. The control circuitry may generate a second snapshot that indicates numbers of requests in respective queues of the multiple queues at a second time that is subsequent to the first time. The control circuitry may arbitrate between requests from the multiple queues to select requests to access the memory bus, where the arbitration is based on snapshots to which requests from the multiple queues belong. Disclosed techniques may approximate age-based scheduling while reducing area and power consumption.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: September 13, 2022
    Assignee: Apple Inc.
    Inventors: Winnie W. Yeung, Leela Kishore Kothamasu, Zelin Zhang, Guanlan Xu, Eddie M. Robinson
  • Publication number: 20210241178
    Abstract: Embodiments discussed herein facilitate determination of risk of relapse of AML post-transplant. One example embodiment is a method, comprising: accessing a digital whole slide image (WSI) comprising a post-transplant bone marrow aspirate from a patient that has acute myeloid leukemia (AML); segmenting one or more myeloblasts on the digital WSI; extracting one or more features from the segmented one or more myeloblasts; providing the one or more features extracted from the segmented one or more myeloblasts to a trained machine learning model; and receiving, from the trained machine learning model, an indication of a risk of relapse of the AML.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 5, 2021
    Inventors: Anant Madabhushi, Sara Arab Yarmohammadi, Zelin Zhang, Patrick Leo, Leland Metheny, Howard Meyerson
  • Patent number: 10555866
    Abstract: A collapsible wheeled walker with two side frames and two height adjustable upper body supports. The apparatus includes a plurality of wheel direction locks each coupled to a wheel and adapted to lock the wheel in fixed moving direction or to release the wheel to turn freely. The apparatus may include a seat that is slidably attached to the two side frames and is movable between a front position for walking inside the frames and a rear position sitting. The apparatus may be converted to a transport chair by locking front wheel and releasing the rear wheels, and sliding the movable seat to the rear position. It may include an X-folder that facilitates collapsing the walker to a small footprint. It may also include two forearm gutters as part of the upper body supports that give the user an upright walking posture for health benefits.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: February 11, 2020
    Assignee: ProtoStar, Inc., a Delaware Corporation
    Inventors: Yichuan Pan, Peter James Fellingham, Zelin Zhang, David Allen Purcell, David Michael Petersen, Scott Allen Rieger
  • Patent number: 10434031
    Abstract: A collapsible wheeled walker with two side frames and two height adjustable upper body supports. The apparatus includes a seat that is slidably attached to the two side frames and is movable between a front position to facilitate an ample walking space inside the frames and a rear position for a user to sit. The apparatus may include an X-folder that facilitates collapsing the walker to a small footprint for storage and transportation. It may also include a left forearm gutter and a right forearm gutter as part of the upper body supports that give the user an upright walking posture for health benefits.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 8, 2019
    Assignee: ProtoStar, Inc., a Delaware Corporation
    Inventors: Yichuan Pan, Peter James Fellingham, Zelin Zhang, Craig Timothy Shugert, David Michael Petersen
  • Publication number: 20190247266
    Abstract: A collapsible wheeled walker with two side frames and two height adjustable upper body supports. The apparatus includes a seat that is slidably attached to the two side frames and is movable between a front position to facilitate an ample walking space inside the frames and a rear position for a user to sit. The apparatus may include an X-folder that facilitates collapsing the walker to a small footprint for storage and transportation. It may also include a left forearm gutter and a right forearm gutter as part of the upper body supports that give the user an upright walking posture for health benefits.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Applicant: ProtoStar, Inc., a Delaware Corporation
    Inventors: Yichuan Pan, Peter James Fellingham, Zelin Zhang, Craig Timothy Shugert, David Michael Petersen
  • Patent number: 10307321
    Abstract: A collapsible wheeled walker with two side frames and two height adjustable upper body supports. The apparatus includes a seat that is slidably attached to the two side frames and is movable between a front position to facilitate an ample walking space inside the frames and a rear position for a user to sit. The apparatus may include an X-folder that facilitates collapsing the walker to a small footprint for storage and transportation. It may also include a left forearm gutter and a right forearm gutter as part of the upper body supports that give the user an upright walking posture for health benefits.
    Type: Grant
    Filed: January 20, 2018
    Date of Patent: June 4, 2019
    Assignee: ProtoStar, Inc., a Delaware Corporation
    Inventors: Yichuan Pan, Peter James Fellingham, Zelin Zhang, Craig Timothy Shugert, David Michael Petersen
  • Publication number: 20190105221
    Abstract: A collapsible wheeled walker with two side frames and two height adjustable upper body supports. The apparatus includes a seat that is slidably attached to the two side frames and is movable between a front position to facilitate an ample walking space inside the frames and a rear position for a user to sit. The apparatus may include an X-folder that facilitates collapsing the walker to a small footprint for storage and transportation. It may also include a left forearm gutter and a right forearm gutter as part of the upper body supports that give the user an upright walking posture for health benefits.
    Type: Application
    Filed: January 20, 2018
    Publication date: April 11, 2019
    Applicant: ProtoStar, Inc., a Delaware Corporation
    Inventors: Yichuan Pan, Peter James Fellingham, Zelin Zhang, Craig Timothy Shugert, David Michael Petersen
  • Publication number: 20190105220
    Abstract: A collapsible Wheeled Walker with two side frames and two height adjustable upper body supports. The apparatus includes a plurality of wheel direction locks each coupled to a wheel and adapted to lock the wheel in fixed moving direction or to release the wheel to turn freely. The apparatus may include a seat that is slidably attached to the two side frames and is movable between a front position for walking inside the frames and a rear position sitting. The apparatus may be converted to a transport chair by locking front wheel and releasing the rear wheels, and sliding the movable seat to the rear position. It may include an X-folder that facilitates collapsing the Walker to a small footprint. It may also include two forearm gutters as part of the upper body supports that give the user an upright walking posture for health benefits.
    Type: Application
    Filed: January 15, 2018
    Publication date: April 11, 2019
    Applicant: ProtoStar, Inc., a Delaware Corporation
    Inventors: Yichuan Pan, Peter James Fellingham, Zelin Zhang, David Allen Purcell, David Michael Petersen, Scott Allen Rieger
  • Patent number: D874351
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: February 4, 2020
    Assignee: Protostar, Inc., A Delaware Corporation
    Inventors: Peter James Fellingham, Zelin Zhang, Yichuan Pan, Craig Timothy Shugert