Patents by Inventor Hongchang Bao

Hongchang Bao 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).

  • Feature extraction apparatus and method and pattern recognition apparatus and method
    Patent number: 7509256
    Abstract: It is intended to increase the recognition rate in speech recognition and image recognition. An observation vector as input data, which represents a certain point in the observation vector space, is mapped to a distribution having a spread in the feature vector space, and a feature distribution parameter representing the distribution is determined. Pattern recognition of the input data is performed based on the feature distribution parameter.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: March 24, 2009
    Assignee: Sony Corporation
    Inventors: Naoto Iwahashi, Hongchang Bao, Hitoshi Honda
  • Pattern recognizing device and method, and providing medium
    Patent number: 7280961
    Abstract: The silence-acoustic-model correcting division generates a silence acoustic model that is used for recognizing the silent section Ts which exists in the beginning of the speech recognition section, on the basis of the environment noise that is included in the noise observation section Tn.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: October 9, 2007
    Assignee: Sony Corporation
    Inventor: Hongchang Bao
  • Feature extraction apparatus and method and pattern recognition apparatus and method
    Patent number: 7117151
    Abstract: It is intended to increase the recognition rate in speech recognition and image recognition. An observation vector as input data, which represents a certain point in the observation vector space, is mapped to a distribution having a spread in the feature vector space, and a feature distribution parameter representing the distribution is determined. Pattern recognition of the input data is performed based on the feature distribution parameter.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: October 3, 2006
    Assignee: Sony Corporation
    Inventors: Naoto Iwahashi, Hongchang Bao, Hitoshi Honda
  • Feature extraction apparatus and method and pattern recognition apparatus and method
    Publication number: 20050171772
    Abstract: It is intended to increase the recognition rate in speech recognition and image recognition. An observation vector as input data, which represents a certain point in the observation vector space, is mapped to a distribution having a spread in the feature vector space, and a feature distribution parameter representing the distribution is determined. Pattern recognition of the input data is performed based on the feature distribution parameter.
    Type: Application
    Filed: March 29, 2005
    Publication date: August 4, 2005
    Inventors: Naoto Iwahashi, Hongchang Bao, Hitoshi Honda
  • Feature extraction apparatus and method and pattern recognition apparatus and method
    Publication number: 20050171773
    Abstract: It is intended to increase the recognition rate in speech recognition and image recognition. An observation vector as input data, which represents a certain point in the observation vector space, is mapped to a distribution having a spread in the feature vector space, and a feature distribution parameter representing the distribution is determined. Pattern recognition of the input data is performed based on the feature distribution parameter.
    Type: Application
    Filed: March 29, 2005
    Publication date: August 4, 2005
    Inventors: Naoto Iwahashi, Hongchang Bao, Hitoshi Honda
  • Feature extraction apparatus and method and pattern recognition apparatus and method
    Patent number: 6910010
    Abstract: A feature extraction and pattern recognition system in which an observation vector forming input data, which represents a certain point in the observation vector space, is mapped to a distribution having a spread in the feature vector space, and a feature distribution parameter representing the distribution is determined. Pattern recognition of the input data is performed based on the feature distribution parameter.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: June 21, 2005
    Assignee: Sony Corporation
    Inventors: Naoto Iwahashi, Hongchang Bao, Hitoshi Honda
  • FEATURE EXTRACTION APPARATUS AND METHOD AND PATTERN RECOGNITION APPARATUS AND METHOD
    Publication number: 20020010583
    Abstract: It is intended to increase the recognition rate in speech recognition and image recognition. An observation vector as input data, which represents a certain point in the observation vector space, is mapped to a distribution having a spread in the feature vector space, and a feature distribution parameter representing the distribution is determined. Pattern recognition of the input data is performed based on the feature distribution parameter.
    Type: Application
    Filed: October 28, 1998
    Publication date: January 24, 2002
    Inventors: NAOTO IWAHASHI, HONGCHANG BAO, HITOSHI HONDA