Multi-function acoustic sensor
    14.
    发明授权

    公开(公告)号:US12250504B2

    公开(公告)日:2025-03-11

    申请号:US18303228

    申请日:2023-04-19

    Abstract: A multi-function acoustic sensor may include a plate structure having a plurality of open spaces that are spaced apart from each other; a plurality of sensors provided on the plate structure, the plurality of sensors including a plurality of sensor elements respectively provided to overlap the plurality of open spaces; and a case having an inner space in which the plurality of sensors are provided, the case including: a first case surface on which the plurality of sensors are provided, the first case surface having at least one first hole, and a second case surface opposite to the first case surface, the second case surface having at least one second hole, wherein the at least one first hole and the at least one second hole form at least one path along which sound is transmitted and sensed through at least one of the plurality of open spaces of the plate structure.

    Two-dimensional array-based neuromorphic processor and implementing method

    公开(公告)号:US11663451B2

    公开(公告)日:2023-05-30

    申请号:US16274547

    申请日:2019-02-13

    CPC classification number: G06N3/063 G06F7/50 G06F7/523 G06F2207/4824

    Abstract: A 2D array-based neuromorphic processor includes: axon circuits each being configured to receive a first input corresponding to one bit from among bits indicating n-bit activation; first direction lines extending in a first direction from the axon circuits; second direction lines intersecting the first direction lines; synapse circuits disposed at intersections of the first direction lines and the second direction lines, and each being configured to store a second input corresponding to one bit from among bits indicating an m-bit weight and to output operation values of the first input and the second input; and neuron circuits connected to the second direction lines, each of the neuron circuits being configured to receive an operation value output from at least one of the synapse circuits, based on time information assigned individually to the synapse circuits, and to perform a multi-bit operation by using the operation values and the time information.

    Directional acoustic sensor
    19.
    发明授权

    公开(公告)号:US11317197B2

    公开(公告)日:2022-04-26

    申请号:US17003357

    申请日:2020-08-26

    Abstract: A compact directional acoustic sensor having an improved signal-to-noise ratio is disclosed. The disclosed directional acoustic sensor includes a first sensing device configured to generate different output gains based on different input directions of external energy, and configured to generate at least one first output signal having a first polarity based on external energy received from an input direction; a second sensing device configured to generate different output gains based on different input directions of external energy, and configured to generate at least one second output signal having a second polarity, that is different than the first polarity, based on the external energy received from the input direction; and at least one signal processor configured to generate at least one final output signal based on the at least one first output signal and the at least one second output signal.

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