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    • 1. 发明申请
    • Electronic apparatus with jack
    • 带插孔的电子设备
    • US20060216974A1
    • 2006-09-28
    • US11385766
    • 2006-03-22
    • Toshio NishigakiYoshiaki Takahashi
    • Toshio NishigakiYoshiaki Takahashi
    • H01R4/66
    • H01R13/6485H01R9/0527H01R24/50
    • A grounding wire is formed by bending a conductive wire. The grounding wire includes a winding portion formed on a horizontal portion so as to be smaller in diameter than a cylindrical portion of a jack, a horizontal proximal portion in parallel to a circuit board, and a connection end bent from an end of the horizontal proximal portion and connected to a ground pattern. The winding portion of the grounding wire is expanded and outwardly engaged to the cylindrical portion of the jack, and elastically and closely attached to the cylindrical portion of the jack by an elastic restoring force of the winding portion. The connection end is then inserted into a hole formed in the circuit board and soldered onto the ground pattern of the circuit board. Static electricity, with which the jack is charged, is discharged from the grounding wire to the ground pattern.
    • 通过弯曲导线形成接地线。 接地线包括形成在水平部分上的直径小于插座的圆筒部分的平行近端部分和与电路板平行的连接端部的连接端部, 部分并连接到地面图案。 接地线的缠绕部分被膨胀并向外接合到千斤顶的圆柱形部分,并且通过卷绕部分的弹性恢复力弹性且紧密地附接到千斤顶的圆柱形部分。 然后将连接端插入形成在电路板中的孔中并焊接到电路板的接地图案上。 插座充电的静电从接地线放电到接地图案。
    • 2. 发明授权
    • Electronic apparatus with jack
    • 带插孔的电子设备
    • US07201588B2
    • 2007-04-10
    • US11385766
    • 2006-03-22
    • Toshio NishigakiYoshiaki Takahashi
    • Toshio NishigakiYoshiaki Takahashi
    • H01R13/648
    • H01R13/6485H01R9/0527H01R24/50
    • A grounding wire is formed by bending a conductive wire. The grounding wire includes a winding portion formed on a horizontal portion so as to be smaller in diameter than a cylindrical portion of a jack, a horizontal proximal portion in parallel to a circuit board, and a connection end bent from an end of the horizontal proximal portion and connected to a ground pattern. The winding portion of the grounding wire is expanded and outwardly engaged to the cylindrical portion of the jack, and elastically and closely attached to the cylindrical portion of the jack by an elastic restoring force of the winding portion. The connection end is then inserted into a hole formed in the circuit board and soldered onto the ground pattern of the circuit board. Static electricity, with which the jack is charged, is discharged from the grounding wire to the ground pattern.
    • 通过弯曲导线形成接地线。 接地线包括形成在水平部分上的直径小于插座的圆筒部分的平行近端部分和与电路板平行的连接端部的连接端部, 部分并连接到地面图案。 接地线的缠绕部分被膨胀并向外接合到千斤顶的圆柱形部分,并且通过卷绕部分的弹性恢复力弹性且紧密地附接到千斤顶的圆柱形部分。 然后将连接端插入形成在电路板中的孔中并焊接到电路板的接地图案上。 插座充电的静电从接地线放电到接地图案。
    • 10. 发明授权
    • Differential amplifier
    • 差分放大器
    • US07868695B2
    • 2011-01-11
    • US12091417
    • 2006-08-02
    • Kazuhisa IshiguroYoshiaki Takahashi
    • Kazuhisa IshiguroYoshiaki Takahashi
    • H03F3/45
    • H03F3/45183H03F2203/45364
    • A differential amplifier circuit at the input stage is configured with a twin differential type having a first differential amplifier circuit (11) and a second differential amplifier circuit (12), respective outputs of which are received by a first and a second source-grounded amplifier (M5, M10). The second source-grounded amplifier (M10) is connected to a current mirror circuit (M11, M12), which is driven by the drain current of the second source-grounded amplifier (M10). With this configuration, the dynamic range for the upper half portion of an alternating signal output from an output terminal (OUT) is determined by the current supply capability of the first source-grounded amplifier (M5) and the dynamic range for the lower half portion is determined by the current supply capability of the second source-grounded amplifier (M10). This eliminates the need of a constant current circuit of a large current for generating a signal having lower half portion in which the waveform distortion is improved.
    • 输入级的差分放大器电路配置有具有第一差分放大器电路(11)和第二差分放大器电路(12)的双差分型,其各自的输出由第一和第二源极接地放大器 (M5,M10)。 第二源极接地放大器(M10)连接到由第二源极接地放大器(M10)的漏极电流驱动的电流镜电路(M11,M12)。 利用这种配置,从输出端子(OUT)输出的交流信号的上半部分的动态范围由第一源极接地放大器(M5)的电流供应能力和下半部分的动态范围 由第二源极接地放大器(M10)的电流供应能力确定。 这消除了用于产生具有其中波形失真提高的下半部分的信号的大电流的恒流电路的需要。