Patents by Inventor Baek S. Chang

Baek S. Chang 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).

  • Synchronization of multi-channel audio communicated over bluetooth low energy
    Patent number: 9712266
    Abstract: This document describes techniques for synchronizing rendering of multi-channel audio output. First audio data corresponding to a first audio channel and second audio data corresponding to a second audio channel may be received. The first and second audio data may be configured for simultaneous rendering. A transmission schedule for wirelessly transmitting audio data to each of first and second audio rendering devices may be configured, according to which the first audio data may be scheduled for transmission to the first audio rendering device after the second audio data is scheduled for transmission to the second audio rendering device by a first length of time. An indication may be wirelessly transmitted to the second audio rendering device to delay rendering audio data by the first length of time. The first and second audio data may be wirelessly transmitted to the first and second audio rendering devices according to the transmission schedule.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: July 18, 2017
    Assignee: Apple Inc.
    Inventors: Joakim Linde, Baek S. Chang, Renaud Lienhart
  • Synchronization of Multi-Channel Audio Communicated over Bluetooth Low Energy
    Publication number: 20140348327
    Abstract: This document describes techniques for synchronizing rendering of multi-channel audio output. First audio data corresponding to a first audio channel and second audio data corresponding to a second audio channel may be received. The first and second audio data may be configured for simultaneous rendering. A transmission schedule for wirelessly transmitting audio data to each of first and second audio rendering devices may be configured, according to which the first audio data may be scheduled for transmission to the first audio rendering device after the second audio data is scheduled for transmission to the second audio rendering device by a first length of time. An indication may be wirelessly transmitted to the second audio rendering device to delay rendering audio data by the first length of time. The first and second audio data may be wirelessly transmitted to the first and second audio rendering devices according to the transmission schedule.
    Type: Application
    Filed: November 8, 2013
    Publication date: November 27, 2014
    Applicant: Apple Inc.
    Inventors: Joakim Linde, Baek S. Chang, Renaud Lienhart