HEADPHONE USING PASSIVE FILTER
    111.
    发明公开

    公开(公告)号:US20240171898A1

    公开(公告)日:2024-05-23

    申请号:US17992633

    申请日:2022-11-22

    Applicant: Juan A. Ovalle

    Inventor: Juan A. Ovalle

    CPC classification number: H04R1/24 H04R1/28

    Abstract: A headphone set includes a novel passive filter for processing an audio signal. The filter circuit uses three major sections. A parallel resistor and capacitor in series with the speaker, a series capacitor and resistor in parallel with the speaker, and a series inductor and capacitor in parallel with the speaker, with values changing relative to the combined impedance of the first two sections. The first section serves as a controlled high pass filter and the second section serves as a controlled low pass filter. The third section reduces overall impedance in order to reduce differences between the lowest and highest impedance on the spectrum established by the first two sections in order to maintain a consistent response across amplifiers which would otherwise have a more drastic effect on the filter values due to highly variable impedance being affected by an amplifiers output load.

    Earphone
    113.
    发明公开
    Earphone 审中-公开

    公开(公告)号:US20240121538A1

    公开(公告)日:2024-04-11

    申请号:US18304380

    申请日:2023-04-21

    CPC classification number: H04R1/02 H04R1/10 H04R1/28 H04R17/00

    Abstract: An embodiment of the present disclosure provides an earphone, which includes a housing with a cavity, a first speaker housed in the cavity for producing low-frequency sounds, a second speaker, and a sound damping mesh for producing mid to high frequency sounds. The housing includes a sound outlet penetrating therethrough, and the cavity is connected with the outside through the sound outlet. The second speaker is fixed to the sound damping mesh. The sound damping mesh completely separates the first speaker from the second speaker. The low-frequency sound emitted by the first speaker is to transmitted to the sound outlet through the sound damping mesh. Compared with the related art, the acoustic performance of the earphone of the present disclosure is good.

    LOUDSPEAKER APPARATUS
    115.
    发明公开

    公开(公告)号:US20230396915A1

    公开(公告)日:2023-12-07

    申请号:US18451136

    申请日:2023-08-17

    Abstract: The present disclosure discloses a loudspeaker apparatus. The loudspeaker apparatus comprises a core housing for accommodating the earphone core; a circuit housing for accommodating a control circuit that drives the earphone core to vibrate to generate a sound, wherein the sound includes at least two resonance peaks; an ear hook for connecting the core housing and the circuit housing; a key arranged at a keyhole on the circuit housing, wherein the key moves relative to the keyhole to generate a control signal for the control circuit; and an elastic pad arranged between the key and the keyhole, wherein the elastic pad hinders a movement of the key towards the keyhole. In the present disclosure, by providing an elastic pad between the key and the keyhole, the waterproof effect of the loudspeaker apparatus may be improved, and the space occupied by the key may be reduced.

    HEADPHONE TYPE SOUND COLLECTOR
    116.
    发明公开

    公开(公告)号:US20230362533A1

    公开(公告)日:2023-11-09

    申请号:US18245300

    申请日:2021-08-16

    Applicant: Hideki WADA

    Inventor: Hideki WADA

    CPC classification number: H04R1/28 H04R1/1008

    Abstract: The present invention addresses the problem of obtaining a headphone type sound collector capable of selectively amplifying frequencies of sounds that are difficult for people with weak hearing to hear. As the means for solving the above-mentioned problem, the headphone type sound collector 1 of the present invention is a headphone type sound collector equipped with a sound collecting device 100a or 100b on at least either of the left and right sides thereof, the sound collecting device comprising: a sound collecting cover 110a or 110b having a sound collecting face in a parabolic shape for collecting sound; a base member 120 for pivotally supporting the sound collecting cover; and a microphone 130 for detecting sound collected by the sound collecting cover.

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