知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

303 条记录 (耗时 0.035 秒)

    Audio Communication Tokens
    12.
    发明申请
    Audio Communication Tokens 审中-公开

    公开(公告)号：US20200314654A1

    公开(公告)日：2020-10-01

    申请号：US16645319

    申请日：2018-06-15

    申请人： Google LLC

    发明人： Arjita Madan ,  Sumit Gwalani

    IPC分类号： H04W12/10 ,  H04W76/10 ,  H04H60/58 ,  H04H60/80 ,  H04W12/06

    摘要： A first device listens for a communication token across an audio bandwidth covering a transmit frequency one or more audio frequency broadcasting device. The first device receives at least one token broadcast from the one or more broadcasting devices. The first device demodulates and decodes each received token. One or more computing devices validates each decoded token. The first device determines, based on the validating, a broadcasting device of the broadcasting devices with which to establish a communications channel The one or more computing devices generates a response token based on the token received from the determined device. The first device broadcasts the generated response token in a response band of the determined device. The determined device demodulates decodes, and validates the token broadcast from the first device. Upon determining the token broadcast from the first device valid, the first device and the determined device establish a wireless communication channel.

    Synchronization device, method, program and system
    13.
    发明授权
    Synchronization device, method, program and system 审中-公开

    公开(公告)号：US10673609B2

    公开(公告)日：2020-06-02

    申请号：US15367989

    申请日：2016-12-02

    申请人： FUJITSU LIMITED

    发明人： Sven Van Den Berghe

    IPC分类号： H04H20/18 ,  H04L7/033 ,  H04L1/20 ,  H04L12/24 ,  H04L12/875 ,  H04H60/80

    摘要： A synchronization device, for use in a system of synchronization devices, to synchronize a received data stream with data streams received at other synchronization devices, and including a synchronization buffer receiving a data stream; an event detector detecting an event in the received data stream and to broadcast event information including an event detection time; and a delay computation element receiving, from each synchronization device, event information including the event detection time, to determine a delay time of a most delayed data stream, and to calculate a delay time to be applied to the received data stream to synchronize the received data stream with the most delayed data stream.

    Maintaining Coordination Following a Wireless Reset
    16.
    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.

    Zone Scene Management
    18.
    发明申请
    Zone Scene Management 审中-公开

    公开(公告)号：US20190239009A1

    公开(公告)日：2019-08-01

    申请号：US16383565

    申请日：2019-04-12

    申请人： SONOS, INC.

    发明人： Robert A. Lambourne

    IPC分类号： H04R27/00 ,  H04H60/80 ,  G06F3/0482 ,  G06F3/16 ,  H03G1/02 ,  G06F3/0484 ,  G05B15/02 ,  H03G7/00 ,  H04N21/436 ,  H04R3/12

    摘要： An example computing device in a media playback system receives a first request to create a first zone scene including a first preconfigured grouping of zones including a first zone and a second zone, and based on the first request, causes creation and storage of the first zone scene. The computing device receives a second request to create a second zone scene including a second preconfigured grouping of zones including the first zone and a third zone, and based on the second request, causes creation and storage of the second zone scene. While displaying a representation of the first zone scene and a representation of the second zone scene, the computing devices receives a third request to invoke the first zone scene, and based on the third request, causes the first zone scene to be invoked such that the first zone and the second zone become configured for synchronous playback of media.