Sound presentation device
    5.
    发明授权
    Sound presentation device 有权
    声音演示设备

    公开(公告)号:US09554206B2

    公开(公告)日:2017-01-24

    申请号:US14809308

    申请日:2015-07-27

    CPC classification number: H04R1/2888 H04R1/10 H04R1/1091 H04R1/28 H04R2460/13

    Abstract: A sound presentation device including: a casing; an electroacoustic transducer that is installed in such a way that a space inside the casing is divided into a first empty chamber and second empty chamber that are acoustically isolated, and that receives an electrical signal and vibrates; and a vibration plate that makes contact with a body surface of a human body when the sound presentation device is mounted on the body surface, and causes vibration of the electroacoustic transducer to be propagated to the human body via the first empty chamber, the second empty chamber suppressing sound waves produced by the vibration of the electroacoustic transducer from being emitted to outside of the sound presentation device via the second empty chamber.

    Abstract translation: 一种声音呈现装置,包括:壳体; 一种电声换能器,其以这样的方式安装,使得壳体内的空间被分成声隔离的第一空腔和第二空腔,并且接收电信号并振动; 以及当所述声音呈现装置安装在所述身体表面上时与所述人体表面接触的振动板,并且使所述电声换能器的振动经由所述第一空腔传播到人体,所述第二空 通过电声换能器的振动产生的室抑制声波经由第二空腔发射到声音呈现装置的外部。

    Infrared detection apparatus
    9.
    发明授权

    公开(公告)号:US11204282B2

    公开(公告)日:2021-12-21

    申请号:US16596208

    申请日:2019-10-08

    Abstract: A lens allows infrared light to pass therethrough. An infrared sensor includes infrared detection elements arranged in two or more columns. The infrared sensor is rotated around a scan rotation axis that passes through part of the lens to scan a detection range, and outputs an output signal indicating a thermal image of the detection range. At least two infrared detection elements in the infrared sensor are located at positions displaced from each other with respect to the scan rotation axis. Among the infrared detection elements, the number of first infrared detection elements having a smaller half-width of a point spread function in a scan direction than that in the direction of the scan rotation axis is larger than the number of second infrared detection elements having a larger half-width of a point spread function in the scan direction than that in the direction of the scan rotation axis.

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