Patents by Inventor Chunmao Zhang

Chunmao Zhang 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).

  • Blind detection of binauralized stereo content
    Patent number: 11929091
    Abstract: An apparatus and method of blind detection of binauralized audio. If the input content is detected as binaural, a second binauralization may be avoided. In this manner, the user experience avoids audio artifacts introduced by multiple binauralizations.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: March 12, 2024
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Chunmao Zhang, Lianwu Chen, Ziyu Yang, Joshua Brandon Lando, David Matthew Fischer, Lie Lu
  • BLIND DETECTION OF BINAURALIZED STEREO CONTENT
    Publication number: 20220366933
    Abstract: An apparatus and method of blind detection of binauralized audio. If the input content is detected as binaural, a second binauralization may be avoided. In this manner, the user experience avoids audio artifacts introduced by multiple binauralizations.
    Type: Application
    Filed: March 1, 2022
    Publication date: November 17, 2022
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Chunmao ZHANG, Lianwu CHEN, Ziyu YANG, Joshua Brandon LANDO, David Matthew FISCHER, Lie LU
  • Blind detection of binauralized stereo content
    Patent number: 11264050
    Abstract: An apparatus and method of blind detection of binauralized audio. If the input content is detected as binaural, a second binauralization may be avoided. In this manner, the user experience avoids audio artifacts introduced by multiple binauralizations.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: March 1, 2022
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Chunmao Zhang, Lianwu Chen, Ziyu Yang, Joshua Brandon Lando, David Matthew Fischer, Lie Lu
  • Blind Detection of Binauralized Stereo Content
    Publication number: 20210056984
    Abstract: An apparatus and method of blind detection of binauralized audio. If the input content is detected as binaural, a second binauralization may be avoided. In this manner, the user experience avoids audio artifacts introduced by multiple binauralizations.
    Type: Application
    Filed: April 24, 2019
    Publication date: February 25, 2021
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Chunmao ZHANG, Lianwu CHEN, Ziyu YANG, Joshua Brandon LANDO, David Matthew FISCHER, Lie LU
  • Audio signal interpolation method and audio signal interpolation apparatus
    Patent number: 8126162
    Abstract: An audio signal interpolation apparatus is configured to perform interpolation processing on the basis of audio signals preceding and/or following a predetermined segment on a time axis so as to obtain an audio signal corresponding to the predetermined segment. The audio signal interpolation apparatus includes a waveform formation unit configured to form a waveform for the predetermined segment on the basis of time-domain samples of the preceding and/or the following audio signals and a power control unit configured to control power of the waveform for the predetermined segment formed by the waveform formation unit using a non-linear model selected on the basis of the preceding audio signal when the power of the preceding audio signal is larger than that of the following audio signal, or the following audio signal when the power of the preceding audio signal is smaller than that of the following audio signal.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: February 28, 2012
    Assignee: Sony Corporation
    Inventors: Chunmao Zhang, Toru Chinen
  • Audio Signal Interpolation Method and Audio Signal Interpolation Apparatus
    Publication number: 20080056511
    Abstract: An audio signal interpolation apparatus is configured to perform interpolation processing on the basis of audio signals preceding and/or following a predetermined segment on a time axis so as to obtain an audio signal corresponding to the predetermined segment. The audio signal interpolation apparatus includes a waveform formation unit configured to form a waveform for the predetermined segment on the basis of time-domain samples of the preceding and/or the following audio signals and a power control unit configured to control power of the waveform for the predetermined segment formed by the waveform formation unit using a non-linear model selected on the basis of the preceding audio signal when the power of the preceding audio signal is larger than that of the following audio signal, or the following audio signal when the power of the preceding audio signal is smaller than that of the following audio signal.
    Type: Application
    Filed: May 23, 2007
    Publication date: March 6, 2008
    Inventors: Chunmao Zhang, Toru Chinen