Patents by Inventor Charles Chow

Charles Chow 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).

  • System and method for keyword detection in a controlled-environment facility using a hybrid application
    Patent number: 7860722
    Abstract: A method for keyword detection in a controlled-environment facility comprises capturing a conversation within the controlled-environment facility and executing a hybrid keyword detection application for detecting a keyword spoken during the conversation. A system comprises an audio capture system operable to capture an audio signal within a controlled-environment facility and a hybrid keyword detection system connected to the audio capture system, where the hybrid keyword detection system is operable to detect a keyword.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: December 28, 2010
    Assignee: Securus Technologies, Inc.
    Inventor: Charles Chow