Patents by Inventor Christopher Y. Chang

Christopher Y. Chang 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: 20240116946
    Abstract: The present disclosure relates to compounds of Formula I: and pharmaceutically acceptable salts thereof, pharmaceutical compositions thereof, useful in the treatment of treating viral infections, for example, coronaviridae infections.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 11, 2024
    Inventors: Stephen E. Ammann, Xinpei Cai, Eda Y. Canales, Weng K. Chang, Gregory F. Chin, Henok H. Kinfe, Scott E. Lazerwith, Jessica L. McKinley, Michael R. Mish, Devan Naduthambi, Jason K. Perry, Kevin X. Rodriguez, Scott D. Schroeder, Christopher J. Swank, Joshua J. Van Veldhuizen
  • Publication number: 20240065779
    Abstract: Systems and methods for responding to faults in a robotic system are provided herein. In some embodiments, the system includes an elongate body having a proximal end and a distal end, a backend housing coupled to the proximal end of the elongate body, and a control system. The backend housing includes one or more actuators configured to manipulate the distal end of the elongate body. The control system is configured to control the robotic system by performing operations including: determining an operational state of the medical robotic system, detecting a fault in one or more components of the medical robotic system, classifying the fault according to one or more heuristics, and imposing a fault reaction state on the medical robotic system based on the one or more heuristics to mitigate the fault.
    Type: Application
    Filed: October 20, 2023
    Publication date: February 29, 2024
    Inventors: Federico Barbagli, Christopher R. Carlson, Samuel Y. Chang, Nicola Diolaiti, Vincent Duindam, Salomon J. Trujillo
  • Publication number: 20040167800
    Abstract: Methods and Systems for Searching, Displaying and Managing Medical Teaching Cases in a Medical Teaching Case Database. A method is provided for displaying relevant medical teaching cases in a medical teaching case database. The method can include providing a medical teaching case database comprising medical teaching cases including medical case text and image information. The method can also include one or more of the following steps: entering search criteria for relevant medical teaching cases in the medical teaching case database; searching the medical teaching case database based on the search criteria for identifying relevant medical teaching cases; and displaying at least a portion of the text or image information of at least one of the relevant medical teaching cases.
    Type: Application
    Filed: February 26, 2003
    Publication date: August 26, 2004
    Applicant: Duke University
    Inventors: Christopher Y. Chang, Gregory F. Hulka, Susan M. Kansagra, Linda G. Leithe
  • Patent number: 4947367
    Abstract: Apparatus and method for storing magnetic tape format data separately stores the tape data from the tape-related information, such as file markers and interblock gap signals. The data and data-related signals are stored in separate finite length buffer memories, which when filled to a predetermined capacity are transferred to a write-once read-many (WORM) optical disk, and stored in contiguous locations beginning at one end of the addressable space on the optical disk. A separately generated tape record map list, including the WORM optical disk address of the aforementioned tape data and tape-related signals is created and stored on the optical disk in sequentially contiguous locations corresponding to sequential tape reel numbers beginning at the opposite end of the addressable space on the optical disk. The data thus recorded on the WORM optical disk is recoverable in the original magnetic tape format by recomposing the data stored in the WORM optical disk in the original magnetic tape data format.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: August 7, 1990
    Assignee: EMC Corporation
    Inventors: Christopher Y. Chang, Leo C. Sherwin