Patents by Inventor Xia Lou

Xia Lou 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).

  • Patent number: 10073516
    Abstract: Inertial sensors within a head mounted display are used to track movement of the head mounted display. The tracked movement of the head mounted display is correlated to an action within a virtual reality scene that is currently displayed to a user wearing the head mounted display. The action within the virtual reality scene is based on a context of the virtual reality scene that is currently displayed. The detected movement of the head mounted display can be combined with other sensor data, such as gaze detection data, to determine the action within the virtual reality scene. In this manner, movements of the user as detected using the inertial sensors within the head mounted display are used as inputs to cause actions within the current context of the virtual reality scene as displayed within the head mounted display to the user.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: September 11, 2018
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Eric Larsen, Frederick Umminger, Xiaoyong Ye, Noam Rimon, Jeffrey Roger Stafford, Xia Lou
  • Publication number: 20160240210
    Abstract: Systems and methods are provided for enhancing speech signal intelligibility and for bettering performance of automatic speech recognition processes, for a speech signal in a noisy environment. Some typical application environments include a media device such as a smart TV. An acoustically coupled loudspeaker signal and signals from one or more microphones can be employed to enhance a near end user speech signal. Some processing can be application-specific, such as specific to applications wherein cleaned speech is employed for human voice communication and/or specific to applications employing Automatic Speech Recognition (ASR) processing. A formant emphasis filter and a spectrum band reconstruction process can be employed to enhance speech quality and/or to improve ASR recognition rate performance. A speech signal can be characterized and the characterization can be employed to improve ASR performance. Some systems and methods apply to devices having a foreground microphone and a background microphone.
    Type: Application
    Filed: February 18, 2016
    Publication date: August 18, 2016
    Inventor: Xia Lou
  • Publication number: 20160187969
    Abstract: Inertial sensors within a head mounted display are used to track movement of the head mounted display. The tracked movement of the head mounted display is correlated to an action within a virtual reality scene that is currently displayed to a user wearing the head mounted display. The action within the virtual reality scene is based on a context of the virtual reality scene that is currently displayed. The detected movement of the head mounted display can be combined with other sensor data, such as gaze detection data, to determine the action within the virtual reality scene. In this manner, movements of the user as detected using the inertial sensors within the head mounted display are used as inputs to cause actions within the current context of the virtual reality scene as displayed to the user within the head mounted display.
    Type: Application
    Filed: June 19, 2015
    Publication date: June 30, 2016
    Inventors: Eric Larsen, Frederick Umminger, Xiaoyong Ye, Noam Rimon, Jeffrey Roger Stafford, Xia Lou
  • Publication number: 20140025374
    Abstract: The present invention provides a system and method to enhance speech intelligibility and improve the detection rate of automatic speech recognizer in noisy environments. The present invention reduces an acoustically coupled loudspeaker signal from a plurality of microphone signals to enhance a near end user speech signal. A decision unit checks a system configuration parameter to determine if the cleaned speech is intended for human communication and/or Automatic Speech Recognition (ASR). A formant emphasis filer and a spectrum band reconstruction unit are used to further enhance the speech quality and improve the ASR recognition rate. The present invention can also apply to devices which has a foreground microphone(s) and a background microphone(s).
    Type: Application
    Filed: July 21, 2013
    Publication date: January 23, 2014
    Inventor: Xia Lou
  • Patent number: 8140331
    Abstract: Characteristic features are extracted from an audio sample based on its acoustic content. The features can be coded as fingerprints, which can be used to identify the audio from a fingerprints database. The features can also be used as parameters to separate the audio into different categories.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: March 20, 2012
    Inventor: Xia Lou
  • Publication number: 20090012638
    Abstract: Characteristic features are extracted from an audio sample based on its acoustic content. The features can be coded as fingerprints, which can be used to identify the audio from a fingerprints database. The features can also be used as parameters to separate the audio into different categories.
    Type: Application
    Filed: July 4, 2008
    Publication date: January 8, 2009
    Applicant: Xia Lou
    Inventor: Xia Lou
  • Publication number: 20030033010
    Abstract: The invention relates to an improved keratoprosthesis comprising a keratoprosthesis prepared with such properties and radii that when implanted into a patient it assumes the optic radii of curvature for a desirable refractive outcome.
    Type: Application
    Filed: June 12, 2002
    Publication date: February 13, 2003
    Inventors: Celia R. Hicks, Traian V. Chirila, Geoffrey J. Crawford, Xia Lou