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    TUNING CIRCUIT
    3.
    发明公开
    TUNING CIRCUIT 失效
    ABSTIMMSCHALTUNG

    公开(公告)号：EP0803981A4

    公开(公告)日：1998-04-01

    申请号：EP96900429

    申请日：1996-01-11

    Applicant: IKEDA TAKESHI

    Inventor： IKEDA TAKESHI ,  OHE TADATAKA ,  NAKANISHI TSUTOMU

    IPC: H03H7/01 ,  H03H11/12 ,  H03H11/20 ,  H03H11/48

    CPC classification number: H03H11/1217 ,  H03H11/1291 ,  H03H11/20 ,  H03H11/481 ,  H03H11/483 ,  H03H11/485 ,  H03H2210/012 ,  H03H2210/015 ,  H03H2210/026 ,  H03H2210/028

    Abstract: A tuning circuit which has a wide tuning bandwidth. The tuning bandwidth of the tuning frequency can be easily changed. The tuning circuit (1) is composed of two cascade-connected tuning amplifier sections (2 and 3). Each of the sections (2 and 3) is provided with cascade-connected phase-shifting circuits (10C and 30C), a voltage dividing circuit (60), and an adding circuit composed of a feedback resistor (70) and an input resistor (74). Prescribed tuning operation is performed by shifting the phase of a prescribed frequency by 360 DEG by means of the phase shifting circuits (10C and 30C) and setting the open loop gain of a feedback loop at less than (1) when the output of the voltage dividing circuit (60) is feedback. The resistance ratio between the feedback resistor (70) and input resistor (74) of each tuning amplifier section is adjusted in order that the maximum damping of each tuning amplifier section becomes smaller and the tuning bandwidth of each amplifier section becomes wider. Therefore, since the tuning amplifier sections are cascade-connected, the maximum damping is increased and the tuning bandwidth is widened as a whole.

    Abstract translation: 具有宽调谐带宽的调谐电路。 调谐频率的调谐带宽可以很容易地改变。 调谐电路（1）由两个级联连接的调谐放大器部分（2和3）组成。 每个部分（2和3）设置有级联连接的相移电路（10C和30C），分压电路（60）以及由反馈电阻器（70）和输入电阻器（70）组成的加法电路 74）。 规定的调谐操作是通过利用移相电路（10C和30C）将规定频率的相位移动360°并将反馈回路的开环增益设置为小于（1）当电压输出 除法电路（60）被反馈。 调节每个调谐放大器部分的反馈电阻器（70）和输入电阻器（74）之间的电阻比，以便每个调谐放大器部分的最大阻尼变得更小并且每个放大器部分的调谐带宽变得更宽。 因此，由于调谐放大器部分是级联连接的，因此最大阻尼增大，调谐带宽整体变宽。

    Laminate Type LC Element
    5.
    发明公开
    Laminate Type LC Element 失效
    Mehrschichtiges LC元素。

    公开(公告)号：EP0500103A1

    公开(公告)日：1992-08-26

    申请号：EP92102847.8

    申请日：1992-02-20

    Applicant: Ikeda, Takeshi

    Inventor： Ikeda, Takeshi ,  Okamoto, Akira

    IPC: H05K1/16

    CPC classification number: H01G4/40 ,  H01F17/0006 ,  H01F2017/0093 ,  H01F2027/2861

    Abstract: A laminate type LC element includes a laminate defined by a plurality of stacked insulating layers (22-1, .., 22-7). A first sheet-like conductor (42-1, ..., 42-7) is formed between each pair of adjacent insulating layers to continuously wind and extend from between the pair of adjacent insulating layers to between another pair of adjacent insulating layers, the first conductor forming a coil having a preselected number of turns. A second sheet-like conductor (62-1, ..., 67-7) is formed between each pair of adjacent insulating layers to continuously wind and extend from between the pair of adjacent insulating layers to between another adjacent pair of adjacent insulating layers, the second conductor being disposed in the face-to-face relationship relative to the first conductor through the insulating layers. The LC element has an increased capacitance and can reliably remove any external noise.

    Abstract translation: 叠层型LC元件包括由多个堆叠的绝缘层（22-1，...，22-7）限定的层压体。 第一片状导体（42-1，...，42-7）形成在每对相邻的绝缘层之间，以从一对相邻的绝缘层之间连续地卷绕并延伸到另一对相邻的绝缘层之间， 形成具有预选匝数的线圈的第一导体。 在每对相邻的绝缘层之间形成第二片状导体（62-1，...，67-7），以从一对相邻的绝缘层之间连续地卷绕并延伸到另一相邻的绝缘层对 第二导体通过绝缘层相对于第一导体以面对面的关系设置。 LC元件具有增加的电容，并可以可靠地消除任何外部噪声。

    Laminated LC element and method for manufacturing the same
    6.
    发明公开
    Laminated LC element and method for manufacturing the same 失效
    Laminiertes LC-Element和sein Herstellungsverfahren。

    公开(公告)号：EP0435230A2

    公开(公告)日：1991-07-03

    申请号：EP90125295.7

    申请日：1990-12-21

    Applicant: Ikeda, Takeshi

    Inventor： Ikeda, Takeshi

    IPC: H01F17/00 ,  H01G4/40

    CPC classification number: H01F17/0006 ,  H01F2017/0093 ,  H01L21/702

    Abstract: A laminated LC element comprises a laminate including a plurality of bonded insulating layers (32-1, 32-2 ...), a first conductor (40) including conductive elements (44-1, 44-2 ...) which continuously extend around the insulating layers so as to form a coil having a predetermined number of turns; and a second conductor (50) including second conductive elements (54-1, 54-2 ...) which extend around the insulating layers, facing the first conductor via said insulating layers, and producing a capacitance with the first conductor. The LC element can eliminate firmly noises from external sources.

    Abstract translation: 层压LC元件包括层压体，其包括多个接合绝缘层（32-1,32-2 ...），包括导电元件（44-1,44-2 ...）的第一导体（40），其连续地 围绕绝缘层延伸以形成具有预定匝数的线圈; 以及包括第二导电元件（54-1,54-2 ...）的第二导体（50），所述第二导电元件围绕所述绝缘层延伸，经由所述绝缘层面对所述第一导体，并且与所述第一导体产生电容。 LC元件可以消除外部来源的牢固的噪音。

    LC noise filter
    7.
    发明公开
    LC noise filter 失效
    LC噪声滤波器

    公开(公告)号：EP0393644A3

    公开(公告)日：1991-04-10

    申请号：EP90107380.9

    申请日：1990-04-18

    Applicant: Ikeda, Takeshi

    Inventor： Ikeda, Takeshi

    IPC: H03H1/00 ,  H01L27/01

    CPC classification number: H03H1/0007 ,  H01F17/0006 ,  H01F27/2804 ,  H01F2017/065 ,  H03H2001/0085 ,  H03H2001/0092

    Abstract: A distributed constant type LC noise filter includes a swirl-like induction conductor (12) forned on a substrate (10) at one side, and at least one grounding block conduc­tor (50) formed on the substrate (10) at the other side in a position opposed to a portion of the induction conductor providing an improved attenuation throughout a widened range of frequency.

    TUNING AMPLIFIER
    9.
    发明授权
    TUNING AMPLIFIER 失效
    可调谐放大器

    公开(公告)号：EP0860942B1

    公开(公告)日：2006-08-02

    申请号：EP96905001.2

    申请日：1996-03-06

    Applicant: Ikeda, Takeshi

    Inventor： OHE, Tadataka

    IPC: H03F3/191

    CPC classification number: H03H11/20 ,  H03F3/191 ,  H03F3/195 ,  H03H11/1217

    Abstract: A tuning amplifier (1) is provided with two cascade-connected phase-shifting circuits (10C and 30C) and an adding circuit composed of a feedback resistor (70) and input resistor (74). The circuit (10C) is constituted of an operational amplifier (12), a resistor (18) one end of which is connected to the inversion input terminal of the amplifier, a resistor (20) connected between the inversion input terminal and the output terminal of the amplifier (12), a series circuit which comprises a capacitor (14) and a variable resistor (16) and one end of which is connected to the other end of the resistor (18). The fluctuation of the output amplitude of the circuit (10C) is suppressed when the tuning frequency of the circuit (10C) is changed because the resistance values of the resistors (18 and 20) are equal to each other. When the signal inputted to a voltage dividing circuit composed of resistors (21 and 23) is taken out as an output, the amplifier (1) itself has a gain and the amplitude of the signal is amplified simultaneously with the tuning operation. The phase-shifting circuit (30C) has the same structure as that of the circuit (10C), and total phase shift by the circuits (10C and 30C) is 360 DEG at a prescribed frequency. Therefore, the amplifier (1) outputs only a signal having a prescribed frequency as a tuning signal.

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