Patents by Inventor Christina Zhang

Christina 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: 11960832
    Abstract: Machine learning, artificial intelligence, and other computer-implemented methods are used to identify various semantically important chunks in documents, automatically label them with appropriate datatypes and semantic roles, and use this enhanced information to assist authors and to support downstream processes. Chunk locations, datatypes, and semantic roles can often be automatically determined from what is here called “context”, to wit, the combination of their formatting, structure, and content; those of adjacent or nearby content; overall patterns of occurrence in a document, and similarities of all these things across documents (mainly but not exclusively among documents in the same document set).
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: April 16, 2024
    Assignee: Docugami, Inc.
    Inventors: Andrew Paul Begun, Steven DeRose, Taqi Jaffri, Luis Marti Orosa, Michael B. Palmer, Jean Paoli, Christina Pavlopoulou, Elena Pricoiu, Swagatika Sarangi, Marcin Sawicki, Manar Shehadeh, Michael Taron, Bhaven Toprani, Zubin Rustom Wadia, David Watson, Eric White, Joshua Yongshin Fan, Kush Gupta, Andrew Minh Hoang, Zhanlin Liu, Jerome George Paliakkara, Zhaofeng Wu, Yue Zhang, Xiaoquan Zhou
  • Patent number: 11960745
    Abstract: Aspects of the present disclosure configure a system component, such as memory sub-system controller, to perform empty page scan operations. The controller selects a portion of the set of memory components that is empty and ready to be programmed. The controller reads one or more signals from the selected portion of the set of memory components. The controller generates an error count value representing whether the portion of the set of memory components is valid for programming based on a result of reading the one or more signals from the selected portion. The controller updates a scan frequency for performing the empty page scan operations for the portion of the set of memory components based on the error count value.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: April 16, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Peng Zhang, Murong Lang, Christina Papagianni, Zhenming Zhou
  • Publication number: 20240079607
    Abstract: A fuel cell includes a gas diffusion layer (GM) situated between a catalyst layer of the fuel cell and a flow field plate of the fuel cell. The GM has a first region and a second region along a thickness direction of the fuel cell. The first region is adjacent to the catalyst layer and has a first thermal conductivity. The second region is adjacent to the flow field plate and has a second thermal conductivity lower than the first thermal conductivity.
    Type: Application
    Filed: January 22, 2021
    Publication date: March 7, 2024
    Inventors: Lei Cheng, Xiaobai Li, Christina Johnston, Bicheng Chen, Rikiya Yoshida, Shinichi Makino, Xu Zhang, John F. Christensen
  • Publication number: 20240071514
    Abstract: A controller of a memory device may identify a plurality of word line groups, included in a block of a memory of the memory device, that include erased pages of the block. The controller may identify a subset of word line groups, of the plurality of word line groups, for a NAND detect empty page (NDEP) scan operation. The controller may perform, based on identifying the subset of word line groups, the NDEP scan operation for the subset of word line groups. A voltage threshold for the NDEP scan may be based on an offset voltage that can be adaptive based on parameters such as quantity of program-erase cycles, memory cell type, and/or operating temperature, among other examples.
    Type: Application
    Filed: August 29, 2022
    Publication date: February 29, 2024
    Inventors: Christina PAPAGIANNI, Murong LANG, Peng ZHANG, Zhenming ZHOU
  • Patent number: 9486358
    Abstract: A vitrectomy apparatus is provided, including a pressure source, a cut valve connected to the pressure source, the cut valve configured to be turned on and off to provide pressure to selectively extend and retract a vitrectomy cutting device, a sensor configured to sense pressure provided from the cut valve, and a controller configured to control operation of the cut valve based on pressure sensed by the sensor.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: November 8, 2016
    Assignee: Abbott Medical Optics Inc.
    Inventors: Fred C Lee, James B. Gerg, Kyle E Lynn, Christina Zhang, Lauren M Hickey
  • Patent number: 9341094
    Abstract: A muffler assembly for a vehicle includes a housing at least partially defining an internal cavity and having an inlet and an outlet. The muffler assembly includes an outlet pipe that has an inlet end open to the internal cavity and an outlet end open at the outlet of the housing. A siphon tube is in the internal cavity and has an inlet opening adjacent an inner surface of the housing and an outlet opening in fluid communication with the outlet pipe between the inlet end and the outlet end of the outlet pipe. The siphon tube is configured to remove condensate from the internal cavity when a predetermined pressure differential is established between the inlet opening and the outlet opening.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: May 17, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Christina Zhang, Bert Mohlmann, Wenshui Wang, Charu S. Hayes, Qiu Er Chen
  • Patent number: 9271867
    Abstract: A vitrectomy apparatus is provided, including a pressure source, a cut valve connected to the pressure source, the cut valve configured to be turned on and off to provide pressure to selectively extend and retract a vitrectomy cutting device, a sensor configured to sense pressure provided from the cut valve, and a controller configured to control operation of the cut valve based on pressure sensed by the sensor. The controller is configured to monitor an amount of dwell time the vitrectomy cutting device remains open and monitor aspiration rate, and control a rate of material processed by the vitrectomy cutting device based on amount of dwell time and aspiration rate.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: March 1, 2016
    Assignee: Abbott Medical Optics Inc.
    Inventors: Kyle E Lynn, James Gerg, Fred C Lee, Lauren M Hickey, Christina Zhang
  • Publication number: 20140171991
    Abstract: A vitrectomy apparatus is provided, including a pressure source, a cut valve connected to the pressure source, the cut valve configured to be turned on and off to provide pressure to selectively extend and retract a vitrectomy cutting device, a sensor configured to sense pressure provided from the cut valve, and a controller configured to control operation of the cut valve based on pressure sensed by the sensor. The controller is configured to monitor pressures encountered and alter cut valve timing based on pressure conditions previously encountered.
    Type: Application
    Filed: December 17, 2012
    Publication date: June 19, 2014
    Inventors: Fred C. Lee, James B. Gerg, Kyle E. Lynn, Christina Zhang, Lauren M. Hickey
  • Publication number: 20140054101
    Abstract: A muffler assembly for a vehicle includes a housing at least partially defining an internal cavity and having an inlet and an outlet. The muffler assembly includes an outlet pipe that has an inlet end open to the internal cavity and an outlet end open at the outlet of the housing. A siphon tube is in the internal cavity and has an inlet opening adjacent an inner surface of the housing and an outlet opening in fluid communication with the outlet pipe between the inlet end and the outlet end of the outlet pipe. The siphon tube is configured to remove condensate from the internal cavity when a predetermined pressure differential is established between the inlet opening and the outlet opening.
    Type: Application
    Filed: August 22, 2012
    Publication date: February 27, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christina Zhang, Bert Möhlmann, Wenshui Wang, Charu S. Hayes, Qiu Er Chen