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16 条记录 (耗时 0.021 秒)

    Maintaining coordination following a wireless reset
    1.
    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

    申请人： EVA Automation, Inc.

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

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

    摘要： 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.

    Wireless Coordination of Audio Playback
    2.
    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

    申请人： EVA Automation, Inc.

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

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

    摘要： 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
    3.
    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

    申请人： EVA Automation, Inc.

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

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

    摘要： 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.

    Maintaining Coordination Following a Wireless Reset
    4.
    发明申请
    Maintaining Coordination Following a Wireless Reset 审中-公开

    公开(公告)号：US20190272146A1

    公开(公告)日：2019-09-05

    申请号：US16416188

    申请日：2019-05-18

    申请人： EVA Automation, Inc.

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

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

    摘要： 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.

    Wireless inter-room coordination of audio playback
    7.
    发明授权
    Wireless inter-room coordination of audio playback 有权

    公开(公告)号：US10901684B2

    公开(公告)日：2021-01-26

    申请号：US16369285

    申请日：2019-03-29

    申请人： EVA Automation, Inc.

    发明人： David Bryant ,  Vanshil Shah ,  Leo Lay ,  Gaylord Yu

    IPC分类号： G06F3/16 ,  H04W56/00 ,  H04R27/00 ,  H04R5/04 ,  H04S7/00

    摘要： An electronic device may exchange packets with a second electronic device. These packets may include transmit times, based on a given clock in a given electronic device when the packets were transmitted. Moreover, when the packets are received by the electronic device, the electronic device may store associated receive times based on a clock in the electronic device. Using minimum time differences between the transmit and receive times, the electronic device may calculate a time offset between the electronic device and the second electronic device, which may then be used to determine future times in a clock domain of the second electronic device. Moreover, the electronic device may provide additional packets to the second electronic device, where a given additional packet includes audio data, and a playback time, corresponding to a given future time, when the audio data is to be played back by the second electronic device.

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

    公开(公告)号：US10255033B2

    公开(公告)日：2019-04-09

    申请号：US15678069

    申请日：2017-08-15

    申请人： EVA Automation, Inc.

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

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

    摘要： 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.

    Software-based wireless coordination of audio playback
    10.
    发明授权
    Software-based wireless coordination of audio playback 有权

    公开(公告)号：US10120642B2

    公开(公告)日：2018-11-06

    申请号：US15678087

    申请日：2017-08-15

    申请人： EVA Automation, Inc.

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

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

    摘要： A processor in an electronic device may coordinate an interface clock in the electronic device with a second interface clock in a second electronic device based on time-coordination information received in packets from the second electronic device. Then, the processor captures timing information associated with the interface clock provided by an interface clock circuit to increase a resolution of a system clock. Moreover, the processor may track, using the timing information, relative drift as a function of time between the system clock and the interface clock, and may determine, based on the relative drift, an estimated time offset between the interface clock and the system clock at the future time. Next, the processor modifies a future time when the electronic device is to perform the playback operation based on the estimated time offset to determine a corrected future time, and may perform the playback operation at the corrected future time.