Microphone arrays and communication systems for directional reception

    公开(公告)号:US09851938B2

    公开(公告)日:2017-12-26

    申请号:US15139238

    申请日:2016-04-26

    Inventor: Martin Kessler

    Abstract: Disclosed herein are microphone arrays for directional reception, along with related system, devices, and techniques. For example, a four-microphone array for directional signal reception may include first, second, and third microphones arranged such that projections of the first, second, and third microphones in a plane provide corners of a triangle in the plane. In some embodiments, a fourth microphone may be arranged such that a projection of the fourth microphone in the plane is disposed in an interior of the triangle. In other embodiments, the fourth microphone may be arranged such that the projection of the fourth microphone in the plane is disposed outside the interior of the triangle, and a distance between the first microphone and the second microphone is different from a distance between the first microphone and the third microphone.

    Two-wire communication protocol engine
    23.
    发明授权
    Two-wire communication protocol engine 有权
    双线通信协议引擎

    公开(公告)号:US09448959B2

    公开(公告)日:2016-09-20

    申请号:US14063886

    申请日:2013-10-25

    Abstract: In an example embodiment, a two-wire communication protocol engine manages control and data transmissions in a bi-directional, multi-node bus system where each node is connected over a twisted wire pair bus to another node. Some embodiments include a state machine that allows for synchronized updates of configuration data across the system, a distributed interrupt system, a synchronization pattern based on data coding used in the system, and data scrambling applied to a portion of the data transmitted over the twisted wire pair bus. The multi-node bus system comprises a master node and a plurality of slave nodes. The slave nodes can be powered over the twisted wire pair bus.

    Abstract translation: 在示例实施例中,双线通信协议引擎管理双向多节点总线系统中的控制和数据传输,其中每个节点通过双绞线总线连接到另一节点。 一些实施例包括允许跨系统同步更新配置数据的状态机,分布式中断系统,基于系统中使用的数据编码的同步模式,以及应用于通过绞线传输的数据的一部分的数据加扰 对公车。 多节点总线系统包括主节点和多个从节点。 从节点可以通过双绞线对总线供电。

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