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    Wireless coordination of audio sources
    1.
    发明授权
    Wireless coordination of audio sources 有权

    公开(公告)号：US10649721B2

    公开(公告)日：2020-05-12

    申请号：US16266099

    申请日：2019-02-03

    Applicant: EVA Automation, Inc.

    Inventor： Gaylord Yu ,  Steven Stupp

    IPC: G06F3/16 ,  H04R27/00 ,  H04L7/02 ,  H04N21/43 ,  H04N21/436 ,  H04N21/81 ,  H04S7/00 ,  H04L29/06 ,  H04N21/8547 ,  G11B27/10 ,  H04W4/02 ,  H04W56/00 ,  G06F1/12 ,  H04R3/12

    Abstract: An audio/video (A/V) hub that coordinates playback of audio content is described. In particular, the A/V hub may calculate current time offsets between clocks in electronic devices and a clock in the A/V hub based on differences between transmit times of frames from the electronic devices and receive times when the frames were received. For example, the current time offsets may be calculated using wireless ranging by ignoring distances between the A/V hub and the electronic devices. Then, the A/V hub may transmit, to the electronic devices, one or more frames that include audio content and playback timing information, which may specify playback times when the electronic devices are to playback the audio content based on the current time offsets. Furthermore, the playback times of the electronic devices may have a temporal relationship so that the playback of the audio content by the electronic devices is coordinated.

    Acoustic coordination of audio sources
    3.
    发明授权
    Acoustic coordination of audio sources 有权

    公开(公告)号：US10649716B2

    公开(公告)日：2020-05-12

    申请号：US15790001

    申请日：2017-10-22

    Applicant: EVA Automation, Inc.

    Inventor： Gaylord Yu ,  Steven Stupp

    IPC: G06F17/00 ,  G06F3/16 ,  H04R27/00 ,  H04L7/02 ,  H04N21/43 ,  H04N21/436 ,  H04N21/81 ,  H04S7/00 ,  H04L29/06 ,  H04N21/8547 ,  G11B27/10 ,  H04W4/02 ,  H04W56/00 ,  G06F1/12 ,  H04R3/12

    Abstract: An audio/video (A/V) hub that coordinates playback of audio content is described. In particular, the A/V hub may calculate current time offsets between clocks in electronic devices (such as electronic devices that include speakers) and a clock in the A/V hub based on measured sound corresponding to one or more acoustic-characterization patterns, one or more times when the electronic devices output the sound and the one or more acoustic-characterization patterns. Then, the A/V hub may transmit, to the electronic devices, one or more frames that include audio content and playback timing information, which may specify playback times when the electronic devices are to playback the audio content based on the current time offsets. Moreover, the playback times of the electronic devices may have a temporal relationship so that the playback of the audio content by the electronic devices is coordinated.

    Coordination of acoustic sources based on location
    4.
    发明授权
    Coordination of acoustic sources based on location 有权

    公开(公告)号：US10552115B2

    公开(公告)日：2020-02-04

    申请号：US15790003

    申请日：2017-10-22

    Applicant: EVA Automation, Inc.

    Inventor： Gaylord Yu ,  Steven Stupp

    IPC: G06F17/00 ,  G06F3/16 ,  H04R27/00 ,  H04L7/02 ,  H04N21/43 ,  H04N21/436 ,  H04N21/81 ,  H04S7/00 ,  H04L29/06 ,  H04N21/8547 ,  G11B27/10 ,  H04W4/02 ,  H04W56/00 ,  G06F1/12 ,  H04R3/12

    Abstract: An audio/video (A/V) hub that calculates an estimated location is described. In particular, the A/V hub may calculate an estimated location of a listener relative to electronic devices (such as electronic devices that include speakers) in an environment that includes the A/V hub and the electronic devices based on: communication with another electronic device; sound measurements in the environment; and/or time-of-flight measurements. Then, the A/V hub may transmit, to the electronic devices, one or more frames that include audio content and playback timing information, which may specify playback times when the electronic devices are to playback the audio content based on the estimated location. Moreover, the playback times of the electronic devices may have a temporal relationship so that the playback of the audio content by the electronic devices is coordinated.

    Equalization based on acoustic monitoring
    5.
    发明授权
    Equalization based on acoustic monitoring 有权

    公开(公告)号：US10296287B2

    公开(公告)日：2019-05-21

    申请号：US15790013

    申请日：2017-10-22

    Applicant: EVA Automation, Inc.

    Inventor： Gaylord Yu ,  Steven Stupp

    IPC: H04S7/00 ,  G06F3/16 ,  H04R27/00 ,  H04L7/02 ,  H04L29/06 ,  H04N21/8547 ,  G11B27/10 ,  H04W4/02 ,  H04W56/00 ,  H04N21/43 ,  H04N21/436 ,  H04N21/81

    Abstract: An audio/video (A/V) hub may measure the sound, corresponding to audio content, output by electronic devices. Then, the A/V hub may compare the measured sound to a desired acoustic characteristic at a first location in the environment based on the first location, a second location of the A/V hub, and an acoustic transfer function of the environment in at least a band of frequencies. For example, the comparison may involve calculating the acoustic transfer function at the first location based on the acoustic transfer function at other locations in the environment and correcting the measured sound based on the calculated the acoustic transfer function at the first location. Moreover, the A/V hub may determine equalized audio content based on the comparison and the audio content.

    Schedule-based coordination of audio sources
    7.
    发明授权
    Schedule-based coordination of audio sources 有权

    公开(公告)号：US10649722B2

    公开(公告)日：2020-05-12

    申请号：US16266100

    申请日：2019-02-03

    Applicant: EVA Automation, Inc.

    Inventor： Gaylord Yu ,  Steven Stupp

    IPC: G06F3/16 ,  H04R27/00 ,  H04L7/02 ,  H04N21/43 ,  H04N21/436 ,  H04N21/81 ,  H04S7/00 ,  H04L29/06 ,  H04N21/8547 ,  G11B27/10 ,  H04W4/02 ,  H04W56/00 ,  G06F1/12 ,  H04R3/12

    Abstract: An audio/video (A/V) hub that coordinates playback of audio content is described. In particular, the A/V hub may calculate current time offsets between clocks in electronic devices and a clock in the A/V hub based on differences between receive times when frames are received from electronic devices and expected transmit times of the frames. For example, the expected transmit times may be based on coordination of clocks in the electronic devices and a clock in the A/V hub at a previous time and a predefined transmit schedule of the frames. Then, the A/V hub may transmit, to the electronic devices, one or more frames that include audio content and playback timing information, which may specify playback times when the electronic devices are to playback the audio content based on the current time offsets.

    Wireless coordination of audio sources
    8.
    发明授权
    Wireless coordination of audio sources 有权

    公开(公告)号：US10255032B2

    公开(公告)日：2019-04-09

    申请号：US15678043

    申请日：2017-08-15

    Applicant: EVA Automation, Inc.

    Inventor： Gaylord Yu ,  Steven Stupp

    IPC: G06F3/16 ,  H04L7/02 ,  H04S7/00 ,  H04W4/02 ,  G11B27/10 ,  H04L29/06 ,  H04N21/43 ,  H04N21/81 ,  H04R27/00 ,  H04W56/00 ,  H04N21/436 ,  H04N21/8547

    Abstract: An audio/video (A/V) hub that coordinates playback of audio content is described. In particular, the A/V hub may calculate current time offsets between clocks in electronic devices and a clock in the A/V hub based on differences between transmit times of frames from the electronic devices and receive times when the frames were received. For example, the current time offsets may be calculated using wireless ranging by ignoring distances between the A/V hub and the electronic devices. Then, the A/V hub may transmit, to the electronic devices, one or more frames that include audio content and playback timing information, which may specify playback times when the electronic devices are to playback the audio content based on the current time offsets. Furthermore, the playback times of the electronic devices may have a temporal relationship so that the playback of the audio content by the electronic devices is coordinated.

    Schedule-based coordination of audio sources
    9.
    发明授权
    Schedule-based coordination of audio sources 有权

    公开(公告)号：US10241748B2

    公开(公告)日：2019-03-26

    申请号：US15678048

    申请日：2017-08-15

    Applicant: EVA Automation, Inc.

    Inventor： Gaylord Yu ,  Steven Stupp

    IPC: G06F3/16 ,  H04L7/02 ,  H04S7/00 ,  H04W4/02 ,  G11B27/10 ,  H04L29/06 ,  H04N21/43 ,  H04N21/81 ,  H04R27/00 ,  H04W56/00 ,  H04N21/436 ,  H04N21/8547

    Abstract: An audio/video (A/V) hub that coordinates playback of audio content is described. In particular, the A/V hub may calculate current time offsets between clocks in electronic devices and a clock in the A/V hub based on differences between receive times when frames are received from electronic devices and expected transmit times of the frames. For example, the expected transmit times may be based on coordination of clocks in the electronic devices and a clock in the A/V hub at a previous time and a predefined transmit schedule of the frames. Then, the A/V hub may transmit, to the electronic devices, one or more frames that include audio content and playback timing information, which may specify playback times when the electronic devices are to playback the audio content based on the current time offsets.

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