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    Environmental characterization based on a change condition
    1.
    发明授权
    Environmental characterization based on a change condition 有权

    公开(公告)号：US10956114B2

    公开(公告)日：2021-03-23

    申请号：US15790000

    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 selectively determines one or more acoustic characteristics of an environment that includes the A/V hub is described. In particular, the A/V hub may detect, using wireless communication, an electronic device (such as a speaker) in the environment. Then, the A/V hub may determine a change condition, such as when the electronic device was not previously detected in the environment and/or a change in a location of the electronic device. In response to determining the change condition, the A/V hub may transition into a characterization mode. During the characterization mode, the A/V hub may: provide instructions to the electronic device to playback audio content at a specified playback time; determine one or more acoustic characteristics of the environment based on acoustic measurements in the environment; and store the one or more acoustic characteristics and/or a location of the electronic device in memory.

    Wireless Coordination of Audio Sources
    2.
    发明申请
    Wireless Coordination of Audio Sources 审中-公开

    公开(公告)号：US20200264838A1

    公开(公告)日：2020-08-20

    申请号：US16868473

    申请日：2020-05-06

    Applicant: EVA Automation, Inc.

    Inventor： Gaylord Yu ,  Steven Stupp

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

    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.

    Maintaining coordination following a wireless reset
    3.
    发明授权
    Maintaining coordination following a wireless reset 有权

    公开(公告)号：US10509625B2

    公开(公告)日：2019-12-17

    申请号：US16416188

    申请日：2019-05-18

    Applicant: EVA Automation, Inc.

    Inventor： Leo Lay ,  Adrian Harold Chadd ,  Haisong Wang ,  Shiwei Zhao ,  Li Li ,  Gaylord Yu

    IPC: H04J3/06 ,  G06F3/16 ,  H04R27/00 ,  H04L7/00 ,  H04L7/033 ,  H04R3/12 ,  H04L29/06 ,  H04N21/43 ,  H04N21/233 ,  H04H60/80 ,  H04M1/725 ,  H04N21/81

    Abstract: An electronic device that reduces relative drift is described. In particular, an interface circuit in the electronic device may calculate, based on differences between transmit times when packets were transmitted by a second electronic device and receive times of the packets, relative drift as a function of time between a clock in the interface circuit and a second clock in the second electronic device. Then, the interface circuit may adjust, based on the relative drift, a clock circuit that provides the clock to eliminate the relative drift, and may store the adjustments to the clock circuit. Furthermore, when a wireless reset occurs, the interface circuit may adapt the clock circuit based on the stored adjustments to reduce the relative drift while the interface circuit restores frequency lock with the second clock based on additional packets with additional transmit times that are received from the second electronic device.

    User interface based on device-state information
    4.
    发明授权
    User interface based on device-state information 有权

    公开(公告)号：US10452332B2

    公开(公告)日：2019-10-22

    申请号：US15593287

    申请日：2017-05-11

    Applicant: EVA Automation, Inc.

    Inventor： Gaylord Yu

    IPC: G06F3/14 ,  H04N21/414 ,  G06F1/16 ,  G06F3/038 ,  G08C17/02 ,  H04M1/725 ,  H04N5/44 ,  H04N21/41 ,  H04N21/422 ,  H04N21/431 ,  H04N21/436 ,  H04N21/4363 ,  H04N21/472 ,  H04N21/482 ,  G06F3/0488 ,  H04M1/22

    Abstract: A portable electronic device with a touch-sensitive display (such as a cellular telephone) provides a wireless remote control for an entertainment device (such as a consumer-electronic device). Based on device-state information that specifies a current state of the entertainment device (which is received from an audio/video (A/V) hub that communicates with the entertainment device) and one or more related states of the entertainment device, the portable electronic device may generate a user interface that includes one or more virtual command icons. Note that the one or more related states are related to the current state in a state diagram by corresponding operations that transition the entertainment device from the current state to the one or more related states. Then, the portable electronic displays the user interface on the touch-sensitive display. In this way, the portable electronic device dynamically adapts the user interface.

    Wireless Coordination of Audio Playback
    5.
    发明申请
    Wireless Coordination of Audio Playback 审中-公开

    公开(公告)号：US20190171412A1

    公开(公告)日：2019-06-06

    申请号：US16266101

    申请日：2019-02-03

    Applicant: EVA Automation, Inc.

    Inventor： Leo Lay ,  Adrian Harold Chadd ,  Haisong Wang ,  Shiwei Zhao ,  Li Li ,  Gaylord Yu

    IPC: G06F3/16 ,  H04M1/725 ,  H04N21/233 ,  H04R27/00 ,  H04L29/06 ,  H04H60/80 ,  H04N21/43 ,  H04L7/00 ,  H04L7/033 ,  H04N21/81

    Abstract: An electronic device that coordinates a playback operation is described. In particular, an interface circuit in the electronic device may calculate, based on differences between transmit times when packets were transmitted by a second electronic device and receive times of the packets, relative drift as a function of time between a clock in the interface circuit and a second clock in the second electronic device. Then, the interface circuit may adjust, based on the relative drift, a clock circuit that provides the clock to eliminate the relative drift, and may determine a remaining time offset between the clock and the second clock. Next, the interface circuit may modify a future time when the electronic device is to perform the playback operation based on the remaining time offset to determine a corrected future time, and the electronic device may perform the playback operation at the corrected future time.

    Source coordination of audio playback
    6.
    发明授权
    Source coordination of audio playback 有权

    公开(公告)号：US10296285B2

    公开(公告)日：2019-05-21

    申请号：US15678072

    申请日：2017-08-15

    Applicant: EVA Automation, Inc.

    Inventor： Leo Lay ,  Adrian Harold Chadd ,  Haisong Wang ,  Shiwei Zhao ,  Li Li ,  Gaylord Yu

    IPC: G06F17/00 ,  G06F3/16 ,  H04R27/00 ,  H04L7/00 ,  H04L7/033 ,  H04H60/80 ,  H04L29/06 ,  H04M1/725 ,  H04N21/233 ,  H04N21/81 ,  H04N21/43 ,  H04R3/12

    Abstract: An electronic device that coordinates a playback operation is described. In particular, an interface circuit in the electronic device may calculate, based on differences between transmit times when packets were transmitted by a second electronic device and receive times of the packets, relative drift as a function of time between a clock in the interface circuit and a second clock in the second electronic device. Then, the interface circuit may adjust, based on the relative drift, a clock circuit that provides the clock to eliminate the relative drift, and may determine a remaining time offset between the clock and the second clock. Next, the interface circuit may modify a future time when the second electronic device is to perform the playback operation based on the remaining time offset to determine a corrected future time, and may transmit information to the second electronic device specifying the corrected future time.

    User interface based on device-state information
    7.
    发明授权
    User interface based on device-state information 有权

    公开(公告)号：US10296276B2

    公开(公告)日：2019-05-21

    申请号：US15593282

    申请日：2017-05-11

    Applicant: EVA Automation, Inc.

    Inventor： Gaylord Yu

    IPC: G06F3/048 ,  G06F3/14 ,  G06F3/0481 ,  G06F3/0488 ,  H04N21/414 ,  G06F1/16 ,  G06F3/038 ,  G08C17/02 ,  H04M1/725 ,  H04N5/44 ,  H04N21/41 ,  H04N21/422 ,  H04N21/431 ,  H04N21/436 ,  H04N21/4363 ,  H04N21/472 ,  H04N21/482

    Abstract: A portable electronic device with a touch-sensitive display (such as a cellular telephone) provides a wireless remote control for an entertainment device (such as a consumer-electronic device). Based on device-state information that specifies a current state of the entertainment device (which is received from an audio/video (A/V) hub that communicates with the entertainment device) and one or more related states of the entertainment device, the portable electronic device may generate a user interface that includes one or more virtual command icons. Note that the one or more related states are related to the current state in a state diagram by corresponding operations that transition the entertainment device from the current state to the one or more related states. Then, the portable electronic displays the user interface on the touch-sensitive display. In this way, the portable electronic device dynamically adapts the user interface.

    Redundant links for reliable communication
    8.
    发明授权
    Redundant links for reliable communication 有权

    公开(公告)号：US10200892B2

    公开(公告)日：2019-02-05

    申请号：US15663821

    申请日：2017-07-31

    Applicant: EVA Automation, Inc.

    Inventor： Gaylord Yu

    IPC: H04W24/04 ,  H04W76/18 ,  H04W76/15 ,  H04W84/12 ,  H04W36/28

    Abstract: In order to maintain performance during wireless communication, a transmitting electronic device may concurrently and independently communicate redundant information to a receiving electronic device. In particular, information associated with a data stream may be communicated to the receiving electronic device using one or more channels by two radios using one or more wireless local area network communication protocols. The packets transmitted by the radios may preferentially include the same information. Moreover, the transmitting electronic device may attempt to maintain the redundant communication if a performance metric associated with the one or more channels degrades. For example, the transmitting electronic device may transfer communication to a different channel or may compress the information in the packets in the one or more channels if the throughput drops below a threshold value. Furthermore, the concurrent communication may allow the transmitting electronic device determine link quality without disrupting the communication of the information.

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