Patents by Inventor Li-Chun Wang

Li-Chun Wang 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).

  • Publication number: 20150205865
    Abstract: A method and system of performing high-throughput identifications of broadcast content is provided. A device can send a content identification query, which includes a sample of content being broadcast, to a server to request an identity of the content. The server will perform a computational identification of the content, return the result to the device, and store the result. For all subsequently received content identification queries requesting an identity of content being broadcast from the same source and in a time during which the content is still being broadcast from the source, the server will send the stored content identification in response to the subsequent queries. If a subsequent content identification query does not request the identity of content being broadcast from the same source or is not received during the time that the content is still being broadcast, the server will perform a computational identification of a content sample.
    Type: Application
    Filed: March 30, 2015
    Publication date: July 23, 2015
    Inventors: Avery Li-Chun Wang, Chee Wong, Jonathan Symons
  • Patent number: 9071371
    Abstract: A user (102) hears an audio program being broadcast and can record a sample of the audio. The sample is then conveyed to an analyzing means (106) to determine to which broadcast station the user is listening. The analyzing means monitors many broadcast channels. Thus, characteristics of the audio sample and samples taken from the broadcast channels can be compared to find a match. Broadcast information pertaining to the broadcast channel from which the match was found may then be reported back to the user, combined with an advertisement of a promotion, prize notification, discount offers, and other information specific for a certain radio station for example.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: June 30, 2015
    Assignee: Shazam Investments Limited
    Inventor: Avery Li-Chun Wang
  • Publication number: 20150132536
    Abstract: The high color rendering index (CRI) and high thermal properties of the red nitride phosphor are proposed in the invention. The phosphor would keep the original crystal phase and reduce the change of crystal volume by replacing different atoms. In addition, the red nitride phosphor can be excited by an incident light with wavelength ranging from 370 nm to 470 nm, and that shows the red phosphor of the present invention can be applied in white light emitting diodes. Moreover, the red nitride phosphor proposed by the present invention includes the potential application in main peak modulation and FWHM adjustment, and would be helpful to improve the thermal stability problem of white light emitting diodes.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Inventors: Yin-Chih Lin, Shin Mou Wu, Hao-En Hung, Yi-Ting Tsai, Chun-Che Lin, Mu-Huai Fang, Ru-Shi Liu, Li Chun Wang, Chi Hsing Hsieh
  • Patent number: 9009460
    Abstract: A data encryption method, adapted to a node computing device in a cloud server system comprises following steps. A primary data is received. A dimension of an encrypted matrix is computed. An encryption length is computed, and data segments matching the encryption length are extracted from the primary data sequentially according to the encryption length. A plurality of encrypted segments is obtained by encrypting the extracted data segments respectively through the encrypted matrix.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: April 14, 2015
    Assignees: Inventec (Pudong) Technology Corporation, Inventec Corporation
    Inventors: Yu-Jia Chen, Chen-Hung Liao, Li-Chun Wang, Chung-Chih Li, Ying-Chieh Liao
  • Patent number: 8996380
    Abstract: Systems and methods of synchronizing media are provided. A client device may be used to capture a sample of a media stream being rendered by a media rendering source. The client device sends the sample to a position identification module to determine a time offset indicating a position in the media stream corresponding to the sampling time of the sample, and optionally a timescale ratio indicating a speed at which the media stream is being rendered by the media rendering source based on a reference speed of the media stream. The client device calculates a real-time offset using a present time, a timestamp of the media sample, the time offset, and optionally the timescale ratio. The client device then renders a second media stream at a position corresponding to the real-time offset to be in synchrony to the media stream being rendered by the media rendering source.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: March 31, 2015
    Assignee: Shazam Entertainment Ltd.
    Inventors: Avery Li-Chun Wang, Rahul Powar, William Michael Mills, Christopher Jacques Penrose Barton, Philip Georges Inghelbrecht, Dheeraj Shankar Mukherjee
  • Publication number: 20140360343
    Abstract: Systems and methods of synchronizing media are provided. A client device may be used to capture a sample of a media stream being rendered by a media rendering source. The client device sends the sample to a position identification module to determine a time offset indicating a position in the media stream corresponding to the sampling time of the sample, and optionally a timescale ratio indicating a speed at which the media stream is being rendered by the media rendering source based on a reference speed of the media stream. The client device calculates a real-time offset using a present time, a timestamp of the media sample, the time offset, and optionally the timescale ratio. The client device then renders a second media stream at a position corresponding to the real-time offset to be in synchrony to the media stream being rendered by the media rendering source.
    Type: Application
    Filed: August 21, 2014
    Publication date: December 11, 2014
    Inventor: Avery Li-Chun Wang
  • Publication number: 20140323034
    Abstract: A user (102) hears an audio program being broadcast and can record a sample of the audio. The sample is then conveyed to an analyzing means (106) to determine to which broadcast station the user is listening. The analyzing means monitors many broadcast channels. Thus, characteristics of the audio sample and samples taken from the broadcast channels can be compared to find a match. Broadcast information pertaining to the broadcast channel from which the match was found may then be reported back to the user, combined with an advertisement of a promotion, prize notification, discount offers, and other information specific for a certain radio station for example.
    Type: Application
    Filed: July 10, 2014
    Publication date: October 30, 2014
    Inventor: Avery Li-Chun Wang
  • Publication number: 20140316787
    Abstract: A method for recognizing an audio sample locates an audio file that closely matches the audio sample from a database indexing a large set of original recordings. Each indexed audio file is represented in the database index by a set of landmark timepoints and associated fingerprints. Landmarks occur at reproducible locations within the file, while fingerprints represent features of the signal at or near the landmark timepoints. To perform recognition, landmarks and fingerprints are computed for the unknown sample and used to retrieve matching fingerprints from the database. For each file containing matching fingerprints, the landmarks are compared with landmarks of the sample at which the same fingerprints were computed. If a large number of corresponding landmarks are linearly related, i.e., if equivalent fingerprints of the sample and retrieved file have the same time evolution, then the file is identified with the sample.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 23, 2014
    Inventors: Avery Li-Chun Wang, Julius O. Smith, III
  • Publication number: 20140280265
    Abstract: Methods and systems for identifying information of a broadcast station and information of broadcasted content are provided. In one example, a method includes receiving at a client device media content rendered by a media rendering source, and the client device making an attempt to determine an identity of the media content based on information stored on the client device. The method also includes based on the attempt of the client device to determine the identity of the media content, determining an identity of the media rendering source. The method further includes based on the attempt of the client device to determine the identity of the media content and on determining the identity of the media rendering source, sending information indicative of the media content to a content recognition server to determine the identity of the media content.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: SHAZAM INVESTMENTS LTD.
    Inventor: Avery Li-Chun Wang
  • Patent number: 8837319
    Abstract: The invention provides a system that implements an algorithm for integrated link adaptation and power control to achieve specified error rates and to improve an overall throughput for real-time applications in wireless packet networks. The system initially divides wireless terminals into groups according to their signal path gains. Afterwards, the system can periodically adapt transmissions (i.e., link adaptations) based on the required error rates, actual error statistics and average transmission power for each wireless terminal group. Furthermore, transmission power can be adjusted by an enhanced Kalman-filter method to ensure successful reception.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: September 16, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Justin Che-I Chuang, Kin K. Leung, Li-Chun Wang
  • Patent number: 8816179
    Abstract: Systems and methods of synchronizing media are provided. A client device may be used to capture a sample of a media stream being rendered by a media rendering source. The client device sends the sample to a position identification module to determine a time offset indicating a position in the media stream corresponding to the sampling time of the sample, and optionally a timescale ratio indicating a speed at which the media stream is being rendered by the media rendering source based on a reference speed of the media stream. The client device calculates a real-time offset using a present time, a timestamp of the media sample, the time offset, and optionally the timescale ratio. The client device then renders a second media stream at a position corresponding to the real-time offset to be in synchrony to the media stream being rendered by the media rendering source.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: August 26, 2014
    Assignee: Shazam Entertainment Ltd.
    Inventor: Avery Li-Chun Wang
  • Patent number: 8811885
    Abstract: A user (102) hears an audio program being broadcast and can record a sample of the audio. The sample is then conveyed to an analyzing means (106) to determine to which broadcast station the user is listening. The analyzing means monitors many broadcast channels. Thus, characteristics of the audio sample and samples taken from the broadcast channels can be compared to find a match. Broadcast information pertaining to the broadcast channel from which the match was found may then be reported back to the user, combined with an advertisement of a promotion, prize notification, discount offers, and other information specific for a certain radio station for example.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 19, 2014
    Assignee: Shazam Investments Limited
    Inventor: Avery Li-Chun Wang
  • Publication number: 20140214532
    Abstract: A method and system for provides a user with an ability to capture a sample of an experiential environment and deliver that sample to an interactive service to trigger one or more predetermined events. In exemplary embodiments of the invention such triggered events include the delivery of information and services to the user, the execution of tasks and instructions by the service on the user's behalf, communication events; surveillance events and other control-oriented events that are responsive to the user's wishes. In other exemplary embodiments of the invention, the triggered events include transaction-oriented events, entertainment events, and events associated with enhancements to human ability or function.
    Type: Application
    Filed: March 31, 2014
    Publication date: July 31, 2014
    Applicant: Shazam Investments Limited
    Inventors: Christopher Jacques Penrose Barton, Philip Georges Inghelbrecht, Dheeraj Shankar Mukherjee, Avery Li-Chun Wang
  • Publication number: 20140214190
    Abstract: A method and system for content sampling and identification is presented. A data stream is recorded, and samples of the stream are identified. Samples can be initially taken at random for identification. Once a sample is identified and segmented within the data stream, the next time to sample may be calculated to be outside the time frame of the identified sample. Thus, the sampling period can be adaptively adjusted to be at times after identified tracks.
    Type: Application
    Filed: March 17, 2014
    Publication date: July 31, 2014
    Applicant: Shazam Investments Limited
    Inventor: Avery Li-Chun Wang
  • Patent number: 8744014
    Abstract: A FFR (fractional frequency reuse)-based network MIMO (multiple-input multiple-output) transmission architecture in a cellular system that employs cell sectoring using directional antennas. Each cell is sectorized into three outer sectors using three directional antennas which transmit in three different directions using three different frequency subbands. The cell sectors are arranged based on a frequency partition scheme so that three sectors in three neighboring cells form a coordinated group for network MIMO transmission. A regular and a rearranged frequency partition are described. Further, a practical implementation of SON (self organizing network)-based three-cell FFR-based network MIMO for a wireless OFDM system is described.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: June 3, 2014
    Assignee: Mediatek Inc.
    Inventors: Chu-Jung Yeh, Li-Chun Wang, I-Kang Fu
  • Patent number: 8725829
    Abstract: A method and system is described which allows users to identify (pre-recorded) sounds such as music, radio broadcast, commercials, and other audio signals in almost any environment. The audio signal (or sound) must be a recording represented in a database of recordings. The service can quickly identify the signal from just a few seconds of excerption, while tolerating high noise and distortion. Once the signal is identified to the user, the user may perform transactions interactively in real-time or offline using the identification information.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: May 13, 2014
    Assignee: Shazam Investments Limited
    Inventors: Avery Li-Chun Wang, Christopher Jacques Penrose Barton, Dheeraj Shankar Mukherjee, Philip Inghelbrecht
  • Publication number: 20140122896
    Abstract: A data encryption method, adapted to a node computing device in a cloud server system comprises following steps. A primary data is received. A dimension of an encrypted matrix is computed. An encryption length is computed, and data segments matching the encryption length are extracted from the primary data sequentially according to the encryption length. A plurality of encrypted segments is obtained by encrypting the extracted data segments respectively through the encrypted matrix.
    Type: Application
    Filed: March 13, 2013
    Publication date: May 1, 2014
    Applicants: INVENTEC CORPORATION, INVENTEC (PUDONG) TECHNOLOGY CORPORATION
    Inventors: Yu-Jia Chen, Chen-Hung Liao, Li-Chun Wang, Chung-Chih Li, Ying-Chieh Liao
  • Patent number: 8700407
    Abstract: A method for recognizing an audio sample locates an audio file that closely matches the audio sample from a database indexing a large set of original recordings. Each indexed audio file is represented in the database index by a set of landmark timepoints and associated fingerprints. Landmarks occur at reproducible locations within the file, while fingerprints represent features of the signal at or near the landmark timepoints. To perform recognition, landmarks and fingerprints are computed for the unknown sample and used to retrieve matching fingerprints from the database. For each file containing matching fingerprints, the landmarks are compared with landmarks of the sample at which the same fingerprints were computed. If a large number of corresponding landmarks are linearly related, i.e., if equivalent fingerprints of the sample and retrieved file have the same time evolution, then the file is identified with the sample.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: April 15, 2014
    Assignee: Shazam Investments Limited
    Inventors: Avery Li-Chun Wang, Julius O. Smith
  • Patent number: 8686271
    Abstract: Systems and methods of synchronizing media are provided. A client device may be used to capture a sample of a media stream being rendered by a media rendering source. The client device sends the sample to a position identification module to determine a time offset indicating a position in the media stream corresponding to the sampling time of the sample, and optionally a timescale ratio indicating a speed at which the media stream is being rendered by the media rendering source based on a reference speed of the media stream. The client device calculates a real-time offset using a present time, a timestamp of the media sample, the time offset, and optionally the timescale ratio. The client device then renders a second media stream at a position corresponding to the real-time offset to be in synchrony to the media stream being rendered by the media rendering source.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: April 1, 2014
    Assignee: Shazam Entertainment Ltd.
    Inventors: Avery Li-Chun Wang, Rahul Powar, William Michael Mills, Christopher Jacques Penrose Barton, Philip Georges Inghelbrecht, Dheeraj Shankar Mukherjee
  • Patent number: 8688248
    Abstract: A method and system for content sampling (106) and identification is presented. A data stream is recorded, and samples of the stream are identified. Samples (106) can be initially taken at random for identification. Once a sample (106) is identified and segmented within the data stream, the next time to sample (106) may be calculated to be outside the time frame of the identified sample (106). Thus, the sampling period can be adaptively adjusted to be at times after identified tracks.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: April 1, 2014
    Assignee: Shazam Investments Limited
    Inventor: Avery Li-Chun Wang