Patents by Inventor Katherine Knill

Katherine Knill 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).

  • Selective multi-pass speech recognition system and method
    Patent number: 7555430
    Abstract: Method and apparatus for multi-pass speech recognition. An input device receives spoken input. A processor performs a first pass speech recognition technique on the spoken input and forms first pass results. The first pass results include a number of alternative speech expressions, each having an assigned score related to the certainty that the corresponding expression correctly matches the spoken input. The processor selectively performs a second pass speech recognition technique on the spoken input according to the first pass results. Preferably, the second pass attempts to correctly match the spoken input to only those expressions which were identified during the first pass. Otherwise, if one of the expressions identified by the first pass is assigned a score higher than a predetermined threshold (e.g., 95%), the second pass is not performed.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: June 30, 2009
    Assignee: Nuance Communications
    Inventors: Hy Murveit, Ashvin Kannan, Ben Shahshahani, Chris Leggetter, Katherine Knill
  • Adaptive multi-pass speech recognition system
    Patent number: 7401017
    Abstract: Method and apparatus for multi-pass speech recognition. An input device receives spoken input. A processor performs a first pass speech recognition technique on the spoken input and forms first pass results. The first pass results include a number of alternative speech expressions, each having an assigned score related to the certainty that the corresponding expression correctly matches the spoken input. The processor selectively performs a second pass speech recognition technique on the spoken input according to the first pass results. Preferably, the second pass attempts to correctly match the spoken input to only those expressions which were identified during the first pass. Otherwise, if one of the expressions identified by the first pass is assigned a score higher than a predetermined threshold (e.g., 95%), the second pass is not performed.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: July 15, 2008
    Assignee: Nuance Communications
    Inventors: Hy Murveit, Ashvin Kannan, Ben Shahshahani, Chris Leggetter, Katherine Knill
  • Adaptive multi-pass speech recognition system
    Publication number: 20060184360
    Abstract: Method and apparatus for multi-pass speech recognition. An input device receives spoken input. A processor performs a first pass speech recognition technique on the spoken input and forms first pass results. The first pass results include a number of alternative speech expressions, each having an assigned score related to the certainty that the corresponding expression correctly matches the spoken input. The processor selectively performs a second pass speech recognition technique on the spoken input according to the first pass results. Preferably, the second pass attempts to correctly match the spoken input to only those expressions which were identified during the first pass. Otherwise, if one of the expressions identified by the first pass is assigned a score higher than a predetermined threshold (e.g., 95%), the second pass is not performed.
    Type: Application
    Filed: April 4, 2006
    Publication date: August 17, 2006
    Inventors: Hy Murveit, Ashvin Kannan, Ben Shahshahani, Chris Leggetter, Katherine Knill
  • Adaptive multi-pass speech recognition system
    Publication number: 20060178879
    Abstract: Method and apparatus for multi-pass speech recognition. An input device receives spoken input. A processor performs a first pass speech recognition technique on the spoken input and forms first pass results. The first pass results include a number of alternative speech expressions, each having an assigned score related to the certainty that the corresponding expression correctly matches the spoken input. The processor selectively performs a second pass speech recognition technique on the spoken input according to the first pass results. Preferably, the second pass attempts to correctly match the spoken input to only those expressions which were identified during the first pass. Otherwise, if one of the expressions identified by the first pass is assigned a score higher than a predetermined threshold (e.g., 95%), the second pass is not performed.
    Type: Application
    Filed: April 4, 2006
    Publication date: August 10, 2006
    Inventors: Hy Murveit, Ashvin Kannan, Ben Shahshahani, Chris Leggetter, Katherine Knill
  • Speech recognition system to selectively utilize different speech recognition techniques over multiple speech recognition passes
    Patent number: 7058573
    Abstract: Method and apparatus for multi-pass speech recognition. An input device receives spoken input. A processor performs a first pass speech recognition technique on the spoken input and forms first pass results. The first pass results include a number of alternative speech expressions, each having an assigned score related to the certainty that the corresponding expression correctly matches the spoken input. The processor selectively performs a second pass speech recognition technique on the spoken input according to the first pass results. Preferably, the second pass attempts to correctly match the spoken input to only those expressions which were identified during the first pass. Otherwise, if one of the expressions identified by the first pass is assigned a score higher than a predetermined threshold (e.g., 95%), the second pass is not performed.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: June 6, 2006
    Assignee: Nuance Communications Inc.
    Inventors: Hy Murveit, Ashvin Kannan, Ben Shahshahani, Chris Leggetter, Katherine Knill