Patents by Inventor David Y. Zhao

David Y. Zhao 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: 11666409
    Abstract: One variation of a method for monitoring needle consumption in a surgical space during a surgery includes: accessing a sequence of images captured by a camera facing an inventory field within the surgical space; scanning the sequence of images for needle packages and needles; in response to detecting entry of a needle package into the surgical space in a first image, logging entry of the needle package, labeled as sterile, into the inventory field at a first time and incrementing a sterile packaged needle counter for the needle package according to a first quantity of sterile needles associated with a type of the needle package; and, in response to detecting removal of a first needle from the inventory field in a second image, incrementing a deployed needle counter at a second time succeeding the first time and decrementing the sterile packaged needle counter.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: June 6, 2023
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Derek F. Amanatullah, Rahim Nazerali, David Y. Zhao, Albert Haque
  • Publication number: 20230031620
    Abstract: One variation of a method for monitoring needle consumption in a surgical space during a surgery includes: accessing a sequence of images captured by a camera facing an inventory field within the surgical space; scanning the sequence of images for needle packages and needles; in response to detecting entry of a needle package into the surgical space in a first image, logging entry of the needle package, labeled as sterile, into the inventory field at a first time and incrementing a sterile packaged needle counter for the needle package according to a first quantity of sterile needles associated with a type of the needle package; and, in response to detecting removal of a first needle from the inventory field in a second image, incrementing a deployed needle counter at a second time succeeding the first time and decrementing the sterile packaged needle counter.
    Type: Application
    Filed: October 7, 2022
    Publication date: February 2, 2023
    Inventors: Derek F. Amanatullah, Rahim Nazerali, David Y. Zhao, Albert Haque
  • Patent number: 11361764
    Abstract: Systems and methods for device naming-indicator generation are disclosed. Friendly names for accessory devices, such as smart-home devices, may be utilized to generate formatted text data that includes capitalization and/or punctuation for the friendly names. The formatted text data may be utilized to generate tag data indicating attributes of the friendly name. The tag data and/or contextual data indicating historical usage of the accessory device may be utilized to generate naming indicator(s) for the accessory device. The naming indicator(s) may be utilized, for example, during target inference and/or for communicating with a user about the accessory device.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: June 14, 2022
    Assignee: Amazon Technologies, Inc.
    Inventors: David Y Zhao, Akshay Kumar, William Evan Welbourne
  • Publication number: 20210000564
    Abstract: One variation of a method for monitoring needle consumption in a surgical space during a surgery includes: accessing a sequence of images captured by a camera facing an inventory field within the surgical space; scanning the sequence of images for needle packages and needles; in response to detecting entry of a needle package into the surgical space in a first image, logging entry of the needle package, labeled as sterile, into the inventory field at a first time and incrementing a sterile packaged needle counter for the needle package according to a first quantity of sterile needles associated with a type of the needle package; and, in response to detecting removal of a first needle from the inventory field in a second image, incrementing a deployed needle counter at a second time succeeding the first time and decrementing the sterile packaged needle counter.
    Type: Application
    Filed: July 17, 2020
    Publication date: January 7, 2021
    Inventors: Derek F. Amanatullah, Rahim Nazerali, David Y. Zhao, Albert Haque