SYNAPTIC ARRAY DEVICE AND ARTIFICIAL NEURAL NETWORK LEARNING METHOD USING IT

    公开(公告)号:US20240220784A1

    公开(公告)日:2024-07-04

    申请号:US18381273

    申请日:2023-10-18

    CPC classification number: G06N3/063

    Abstract: A synaptic array device according to one embodiment of the present disclosure comprises a first synaptic array representing weight values, a second synaptic array receiving the error gradient of the weights of the first synaptic array and representing gradient values refined in row units, and a third synaptic array receiving the gradient values refined in row units from the second synaptic array and passing the portion of the received gradient values exceeding a threshold to the first synaptic array, wherein the third synaptic array derives a moving average value by averaging accumulated values of the gradient values received from the second synaptic array and passes the derived moving average value to the second synaptic array.

    Apparatus and method for measuring bio-signal

    公开(公告)号:US11986271B2

    公开(公告)日:2024-05-21

    申请号:US17677059

    申请日:2022-02-22

    CPC classification number: A61B5/0095 A61B5/02416

    Abstract: An apparatus for measuring a bio-signal includes: a light source configured to emit light; an ultrasonic transducer configured to obtain a photoacoustic signal generated from an object; a photoacoustic coupler disposed in contact with the ultrasonic transducer and configured to direct the light transmitted from the light source to a scanner and to direct the photoacoustic signal generated from the object to the ultrasonic transducer; the scanner configured to reflect the light incident from the photoacoustic coupler to the object, and reflect the photoacoustic signal generated from the object to the photoacoustic coupler; a scanner controller configured to adjust a light incident position on the object by controlling the angle of the scanner; a light detector configured to obtain a light signal by detecting the light scattered or reflected from the object; and a processor configured to obtain bio-information based on the light signal and the photoacoustic signal.

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