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    电－机/声转换器及采用该转换器的电－机/声转换装置
    31.
    发明授权
    电－机/声转换器及采用该转换器的电－机/声转换装置 失效

    公开(公告)号：CN1177652C

    公开(公告)日：2004-12-01

    申请号：CN99801047.2

    申请日：1999-06-29

    Applicant: 松下电器产业株式会社

    Inventor： 榎本光高 ,  平田雅国 ,  福山敬则 ,  久世光一

    IPC: B06B1/04

    CPC classification number: G10K9/12 ,  B06B1/0246 ,  B06B1/0261 ,  B06B1/045 ,  B06B2201/53 ,  B06B2201/70 ,  H04M19/04 ,  H04R2400/03

    Abstract: 一种应用于移动电话之类的电-机/声转换器，包括：具有第一开口端部和第二开口端部的壳体；含有磁路的活动部件；将所述活动部件安装在靠近所述第一开口端部的所述壳体上，用以支承所述活动部件使之可活动的悬挂体；安装在靠近所述第二开口端部的所述壳体上的振动板，所述振动板远离所述活动部件设置；其顶部连接到所述振动板，其底部插入所述活动部件的磁隙内的音圈；以及绕制在所述壳体上并靠近所述活动部件设置的检测线圈，所述检测线圈通过所述活动部件的振动产生激励电压，且所述检测线圈检测所述活动部件的漏磁通。由此实现即便共振频率因环境温度之类的环境变化而改变时，也具有非常稳定的振动功能的电-机/声转换器。

    通知装置及具有该通知装置的无线通信装置
    36.
    发明公开
    通知装置及具有该通知装置的无线通信装置 失效 转让

    公开(公告)号：CN1285771A

    公开(公告)日：2001-02-28

    申请号：CN98812975.2

    申请日：1998-12-28

    Applicant: 三洋电机株式会社

    Inventor： 浜口俊英 ,  源野广和

    IPC: B06B1/04

    CPC classification number: B06B1/0284 ,  B06B1/045 ,  B06B2201/53 ,  B06B2201/70 ,  H04R2400/03

    Abstract: 在具有安装有用于接收驱动信号的供给而起共振的振动体的通知单元2、将驱动信号供给通知单元2的信号生成电路5的通知装置中,信号生成电路5生成频率在包含通知单元2的振动体的共振频率的一定范围内变动的驱动信号Dv,并供给通知单元2。在此,驱动信号的频率的变化幅度与由决定振动体的共振频率的参数的公差引起的共振频率偏移幅度对应而设定。另外,驱动信号具有矩形波或正弦波的交替波形,频率按1.37－2.98Hz周期性地变化。根据该通知单元,尽管振动体的共振频率有偏移,但仍可以得到充分的通知效果。

    Buzzer with Zener diode in discharge path
    39.
    发明授权
    Buzzer with Zener diode in discharge path 有权
    蜂鸣器在放电路径中具有齐纳二极管

    公开(公告)号：US6111497A

    公开(公告)日：2000-08-29

    申请号：US266792

    申请日：1999-03-12

    Applicant: Hakan Andersson ,  Bo Ekdahl

    Inventor： Hakan Andersson ,  Bo Ekdahl

    IPC: G10K9/12 ,  B06B1/02 ,  G08B3/10

    CPC classification number: G08B3/10 ,  B06B1/0238 ,  B06B2201/53 ,  B06B2201/70

    Abstract: A relatively high voltage is developed across a buzzer by placing a resistance in the discharge path of an buzzer, e.g., by shunting one or more Zener diodes or LEDs across a switching transistor, the switching transistor being connected in series with the buzzer between a voltage potential and ground. Alternatively, the buzzer is shunted with a resistive element, with or without series connected a reversed biased diode. The result is a higher audio output without a corresponding increase in power consumption.

    Abstract translation: 通过在蜂鸣器的放电路径中放置电阻，例如通过在开关晶体管上分流一个或多个齐纳二极管或LED，开关晶体管与蜂鸣器串联连接在一个电压 潜力和地面。 或者，蜂鸣器与电阻元件分流，有或没有串联连接反向偏置二极管。 结果是较高的音频输出没有相应的功耗增加。

    Elliptical vibratory apparatus
    40.
    发明授权
    Elliptical vibratory apparatus 失效

    公开(公告)号：US6044710A

    公开(公告)日：2000-04-04

    申请号：US46752

    申请日：1998-03-24

    Applicant: Yutaka Kurita ,  Yasushi Muragishi ,  Hitoshi Yasuda

    Inventor： Yutaka Kurita ,  Yasushi Muragishi ,  Hitoshi Yasuda

    IPC: B06B1/02 ,  B06B3/00 ,  G01M7/06 ,  B07B1/36

    CPC classification number: B06B1/0246 ,  B06B3/00 ,  B06B2201/53 ,  B06B2201/70

    Abstract: The invention disclosed is an elliptical vibratory apparatus including a first controller which includes at least a first phase shifter, a first high-gain amplifier and a first saturating element; a first power amplifier for amplifying an output of the first controller; a first vibratory exciter receiving an output of the first power amplifier for generating a horizontal vibrational force in a horizontal direction; a horizontal vibrational system of an elliptical vibratory machine receiving said horizontal vibrational force; a vibrational displacement detector for detecting a horizontal displacement of a movable part of the elliptical vibratory machine in the horizontal direction, the output of the vibrational detector being supplied to both the input of the first controller and the input of a second controller; the second controller including at least a second phase shifter, a second high-gain amplifier and a second saturating element; a second power amplifier for amplifying an output of the second controller; a second vibratory exciter receiving an output of the second power amplifier for generating a vertical vibrational force in a vertical direction; a vertical vibrational system of the elliptical vibratory machine receiving the vertical vibrational force; a closed loop being formed by the first controller, the first power amplifier, the first vibratory exciter, the horizontal vibrational system and the vibrational displacement detecting means, the output of the vibrational displacement means being negatively fed-back to the first controller in the closed loop; wherein a shift angle .alpha. of the first phase shifter is so predetermined that there is a phase difference of 180 degrees between the output terminal of the vibrational displacement detector and the input terminal of the first controller, when these terminals are cut off from each other, and a shift angle .beta. of the second phase shifter is so predetermined as to obtain a predetermined phase difference between phase difference between the vibrational displacements of the horizontal and vertical vibrational systems for the optimum condition of the elliptical vibratory machine, the horizontal vibrational system being self-excitedly vibrated at its resonant frequency and the vertical vibrational system being self-excitedly vibrated.

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