DIRECTIONAL ACOUSTIC SENSOR
    32.
    发明申请

    公开(公告)号:US20220240005A1

    公开(公告)日:2022-07-28

    申请号:US17717920

    申请日:2022-04-11

    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.

    SYSTEM AND METHOD FOR MEASURING DISTANCE USING ACOUSTIC SIGNAL

    公开(公告)号:US20220099828A1

    公开(公告)日:2022-03-31

    申请号:US17187097

    申请日:2021-02-26

    Abstract: Provided is a distance measurement system, including: at least one sound source configured to generate an acoustic signal; an acoustic sensor including a plurality of directional acoustic sensors arranged to have directionalities different from one another; and at least one processor configured to: obtain a directionality of the acoustic signal in a particular direction based on at least one of a sum of output signals of the plurality of directional acoustic sensors or a difference between the output signals of the plurality of directional acoustic sensors, the at least one of the sum or the difference being based on applying a weight to at least one of the output signals; and determine a distance between the acoustic sensor and a reflection surface based on a time for the acoustic signal to arrive at the acoustic sensor in the particular direction after being generated and then reflected from the reflection surface.

    VOICE RECOGNITION SYSTEM AND DISPLAY DEVICE USING THE SAME

    公开(公告)号:US20210210087A1

    公开(公告)日:2021-07-08

    申请号:US16920894

    申请日:2020-07-06

    Abstract: Disclosed are a voice recognition system and a display device using the same. The disclosed voice recognition system includes a plate structure, a vibration sensor, and a voice recognition device. The plate structure vibrates based on propagation of a voice wave generated from a user, and the vibration sensor is provided in contact with the plate structure to detect the vibration of the plate structure. The voice recognition device recognizes voice of the user by receiving a signal output from the vibration sensor.

    NEURAL NETWORK APPARATUS AND METHOD OF PROCESSING VARIABLE-RESOLUTION OPERATION BY THE SAME

    公开(公告)号:US20200242454A1

    公开(公告)日:2020-07-30

    申请号:US16557182

    申请日:2019-08-30

    Abstract: A neural network apparatus that is configured to process an operation includes neural network circuitry configured to receive a first input of an n-bit activation, store a second input of an m-bit weight, perform a determination whether to perform an operation on an ith bit of the first input and a jth bit of the second input, output an operation value of an operation performed on the ith bit of the first input and the jth bit of the second input based on the determination, and produce an operation value of the operation based on the determination.

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