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    Headset
    121.
    外观设计
    Headset 有权

    公开(公告)号：USD573139S1

    公开(公告)日：2008-07-15

    申请号：US29272488

    申请日：2007-02-08

    Applicant: Johan Birger

    Designer： Johan Birger

    Headset
    123.
    外观设计
    Headset 有权

    公开(公告)号：USD566695S1

    公开(公告)日：2008-04-15

    申请号：US29269944

    申请日：2006-12-12

    Applicant: Klaus Rath

    Designer： Klaus Rath

    Headset with adjustable microphone boom
    125.
    发明授权
    Headset with adjustable microphone boom 有权
    耳机与可调麦克风吊杆

    公开(公告)号：US07181037B2

    公开(公告)日：2007-02-20

    申请号：US10471928

    申请日：2002-03-13

    Applicant: Ole Birch

    Inventor： Ole Birch

    IPC: H04R25/00

    CPC classification number: H04R1/1058 ,  H04M1/05 ,  H04R1/08 ,  H04R2201/107 ,  H04R2420/07

    Abstract: A headset with an adjustable microphone boom which can be adjusted to and from a position near the mouth of a user and is mounted in a housing by a friction part being coupled to a flexible friction coupling which is configured in a plate in that co-operating plates are stamped out of the plate and are connected to the plate by means of flexible arms. The friction part has a shaft which can be accommodated in a bearing defined by recesses which are configured partly in the inside of the housing and partly in the plate. The microphone boom, the housing and the plate with friction coupling are held together by means of a locking ring. In this way a stable, adjustable microphone boom is provided which does not become loose with time, understood in the way that no matter in which position and regardless of how frequently the position is changed, the microphone boom will remain secured with a sufficient force in the friction coupling.

    Abstract translation: 具有可调节麦克风吊杆的耳机，其可以被调节到靠近使用者嘴部的位置，并且通过摩擦部件安装在壳体中，所述摩擦部件被联接到柔性摩擦联接器，所述柔性摩擦联接器被配置在板中， 板从板上冲压并通过柔性臂连接到板上。 该摩擦部件具有可容纳在由凹部限定的轴承中的轴，该凹部部分地构造在壳体的内部并且部分地构造在板中。 麦克风吊杆，外壳和带有摩擦联轴器的盘片通过锁定环保持在一起。 以这种方式，提供了一种稳定的，可调节的麦克风臂，其不会随着时间变得松动，以无论在哪个位置以及不管位置变化的频率如何的方式被理解，麦克风臂将以足够的力保持固定 摩擦耦合。

    Headset
    126.
    外观设计
    Headset 有权

    公开(公告)号：USD530307S1

    公开(公告)日：2006-10-17

    申请号：US29238301

    申请日：2005-09-13

    Applicant: Klaus Rath

    Designer： Klaus Rath

    Audio frequency signal compressing system
    129.
    发明授权
    Audio frequency signal compressing system 失效
    音频信号压缩系统

    公开(公告)号：US5303308A

    公开(公告)日：1994-04-12

    申请号：US909896

    申请日：1992-07-07

    Applicant: Leo Larsen ,  Jens Madsen

    Inventor： Leo Larsen ,  Jens Madsen

    IPC: H04M1/60 ,  H03G7/00 ,  A61F11/06 ,  H03G3/00 ,  H04B1/64

    CPC classification number: H04M1/6016

    Abstract: An audio frequency compressing system for amplifying an input signal to produce a power output signal while removing high-level signals which could harm a listener. Gain control in the feedback path of an amplifier includes both a gain controller circuit for supplying a constant feedback impedance and a plurality of resistors which can be coupled to the gain controller circuit to increase or decrease the feedback impedance. Coupling of the resistors to the gain controller circuit is controlled by a feedback control circuit having both an automatic gain control circuit and a continuous high-level protection circuit.

    Abstract translation: 一种音频压缩系统，用于放大输入信号以产生电力输出信号，同时去除可能损害听众的高电平信号。 放大器的反馈路径中的增益控制包括用于提供恒定反馈阻抗的增益控制器电路和可以耦合到增益控制器电路以增加或减少反馈阻抗的多个电阻器。 电阻器与增益控制器电路的耦合由具有自动增益控制电路和连续高电平保护电路的反馈控制电路控制。

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