Patents by Inventor Frederick Choi

Frederick Choi 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).

  • Reduced genome lacking toxin-antitoxin genes
    Patent number: 11970725
    Abstract: Provided herein are E. coli host strains with improved capacity for producing recombinant proteins.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: April 30, 2024
    Assignee: Scarab Genomics LLC
    Inventors: Frederick R. Blattner, Robert E. Novy, David A. Frisch, Charles Landry, Hyunsic Choi, Eric A. Steffen, John Brandon
  • Active error detection and resolution for linguistic translation
    Patent number: 9710463
    Abstract: A two-way speech-to-speech (S2S) translation system actively detects a wide variety of common error types and resolves them through user-friendly dialog with the user(s). Examples include features including one or more of detecting out-of-vocabulary (OOV) named entities and terms, sensing ambiguities, homophones, idioms, ill-formed input, etc. and interactive strategies for recovering from such errors. In some examples, different error types are prioritized and systems implementing the approach can include an extensible architecture for implementing these decisions.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: July 18, 2017
    Assignee: Raytheon BBN Technologies Corp.
    Inventors: Rohit Prasad, Rohit Kumar, Sankaranarayanan Ananthakrishnan, Sanjika Hewavitharana, Matthew Roy, Frederick Choi
  • ACTIVE ERROR DETECTION AND RESOLUTION FOR LINGUISTIC TRANSLATION
    Publication number: 20140297252
    Abstract: A two-way speech-to-speech (S2S) translation system actively detects a wide variety of common error types and resolves them through user-friendly dialog with the user(s). Examples include features including one or more of detecting out-of-vocabulary (OOV) named entities and terms, sensing ambiguities, homophones, idioms, ill-formed input, etc. and interactive strategies for recovering from such errors. In some examples, different error types are prioritized and systems implementing the approach can include an extensible architecture for implementing these decisions.
    Type: Application
    Filed: December 6, 2013
    Publication date: October 2, 2014
    Inventors: Rohit Prasad, Rohit Kumar, Sankaranarayanan Ananthakrishnan, Sanjika Hewavitharana, Matthew Roy, Frederick Choi
  • Communication processor for a packet-switched network
    Patent number: 4979100
    Abstract: A packet switch receives data and processes it for assembly into packages. A bus allows communication between each of the data processing units of the switch and one or more storage units for storing the data packets. Arbitration for deciding which of the processing units will be granted access to the bus is performed by a system which selectively and alterably designates any of at least two different levels of priority of access to the bus for each of the processing units, and the relative percentages of time of access for the different priorty levels. The system assures greater access to the bus by those of the processing units having the higher level of priority. If communication is provided by two buses, the requests for access are alternated between them.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: December 18, 1990
    Assignee: Sprint International Communications Corp.
    Inventors: Perry Makris, Frederick Choi, Mark Klimek, James Mapp, Koji Munemoto, Jeff Nicoll, Mark Soderberg, James A. Moore