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18 条记录 (耗时 0.021 秒)

    Visual inspection of automatically-mounted component in circuit board assembly processes
    3.
    发明申请
    Visual inspection of automatically-mounted component in circuit board assembly processes 审中-公开
    电路板组装过程中自动安装组件的目视检查

    公开(公告)号：US20070022326A1

    公开(公告)日：2007-01-25

    申请号：US11188087

    申请日：2005-07-22

    申请人： Tin-Lup Wong ,  Noboru Kodama ,  Anthony Corkell ,  Tadashi Kosuga

    发明人： Tin-Lup Wong ,  Noboru Kodama ,  Anthony Corkell ,  Tadashi Kosuga

    IPC分类号： G06F11/00

    CPC分类号： H05K3/3494 ,  H05K1/0269 ,  H05K2201/10204 ,  H05K2203/161 ,  H05K2203/163

    摘要： A component is mounted onto a circuit board and is visually inspected after the circuit board is subjected to heat to determine whether the component has undergone a notable change in appearance. The component is preselected to have indicative characteristics after being subjected to heat. While the component is subjected to a predetermined temperature for less than a first duration of time, the component undergoes little or no change in appearance, and while subjected to the predetermined temperature for more than a second duration of time, the component undergoes a notable change in appearance. The circuit board is removed from a manufacturing process if the component has undergone a notable change in appearance.

    摘要翻译： 将部件安装到电路板上，并在电路板经受加热后进行目视检查，以确定部件是否已经发生显着的外观变化。 该组件被预选为在受热后具有指示特性。 当组件经受预定温度小于第一持续时间时，组件在外观上经历很少或没有变化，并且在受到预定温度超过第二持续时间的情况下，组件经历显着变化 在外观上。 如果组件在外观上发生显着变化，则从制造过程中移除电路板。

    Electronic apparatus, specification identification method therefor and manufacturing method therefor
    4.
    发明授权
    Electronic apparatus, specification identification method therefor and manufacturing method therefor 失效
    电子仪器，其规格识别方法及其制造方法

    公开(公告)号：US06946862B2

    公开(公告)日：2005-09-20

    申请号：US10677343

    申请日：2003-10-03

    申请人： Tadashi Kosuga

    发明人： Tadashi Kosuga

    IPC分类号： H04B17/00 ,  H03J1/00 ,  H04B1/18 ,  H04B17/29 ,  G01R31/02

    CPC分类号： H03J1/0008

    摘要： An electronic apparatus includes a specific circuit component having a circuit constant included in a function circuit serving a specific circuit function, and a measurement terminal for measuring the circuit constant. The circuit constant has a value in accordance with a specification. The electronic apparatus can avoid a misidentification during an identification procedure of the specification.

    摘要翻译： 电子设备包括具有包括在用于特定电路功能的功能电路中的电路常数的特定电路部件和用于测量电路常数的测量端子。 电路常数具有符合规格的值。 电子设备可以避免在说明书的识别过程中的错误识别。

    Receiving circuit
    5.
    发明授权
    Receiving circuit 有权
    接收电路

    公开(公告)号：US06208847B1

    公开(公告)日：2001-03-27

    申请号：US09287974

    申请日：1999-04-07

    申请人： Tadashi Kosuga

    发明人： Tadashi Kosuga

    IPC分类号： H04B140

    CPC分类号： H04B1/44 ,  H04B1/18

    摘要： A receiving circuit includes: an antenna for receiving signal waves of two different frequency hands; a first receiving circuit for receiving a first receiving signal having a frequency; a second receiving circuit for receiving a second receiving signal having another frequency; a switch element for switching a signal path from the antenna to either one of the first receiving circuit and the second receiving circuit; a first diode; a second diode; and reverse bias voltage applying elements, each connected in parallel with one of the first diode and the second diode. The switch element is connected to a direct current power supply, and the switch element controls the connection of the direct current power supply such that the first diode and the second diode are biased in the forward direction when the first receiving signal is received and the first diode and the second diode are biased in the reverse direction when the second receiving signal is received.

    摘要翻译： 接收电路包括：用于接收两个不同频率手的信号波的天线; 用于接收具有频率的第一接收信号的第一接收电路; 第二接收电路，用于接收具有另一频率的第二接收信号; 开关元件，用于切换从天线到第一接收电路和第二接收电路中的任一个的信号路径; 第一个二极管; 第二个二极管; 和反向偏置电压施加元件，每个与第一二极管和第二二极管中的一个并联连接。 开关元件连接到直流电源，并且开关元件控制直流电源的连接，使得当接收到第一接收信号时第一二极管和第二二极管在正向被偏置，并且第一 当接收到第二接收信号时，二极管和第二二极管被反向偏置。

    Signal attenuator
    6.
    发明授权
    Signal attenuator 失效
    信号衰减器

    公开(公告)号：US5126703A

    公开(公告)日：1992-06-30

    申请号：US636158

    申请日：1990-12-31

    申请人： Tadashi Kosuga

    发明人： Tadashi Kosuga

    IPC分类号： H04B1/16 ,  H03G3/10 ,  H03G3/20 ,  H03G3/30 ,  H03H7/25 ,  H04B1/18

    CPC分类号： H03H7/255

    摘要： A first PIN diode is connected to the input side of a tuner at the front end of an FM receiver, in an AC coupled fashion parallel to the tuner. A correction inductance is connected parallel to the first PIN diode in an AC coupled fashion. The tuner is connected, at its output side, parallel to a series-connected circuit of a correction capacitor and a second PIN didode. The anodes of the first and second PIN diodes are supplied with an automatic gain control (AGC) voltage. When the AGC voltage varies, the resistances of the first and second PIN diodes vary in a manner to adjust the degree to which the correction inductance and the correction capacitor affect the resonance in the tuner.

    Combination device having a magnetic recording and reproducing unit and an electronic tuning type receiver
    7.
    发明授权
    Combination device having a magnetic recording and reproducing unit and an electronic tuning type receiver 失效
    具有磁记录和再现单元和电子调谐型接收器的组合装置

    公开(公告)号：US4205353A

    公开(公告)日：1980-05-27

    申请号：US926347

    申请日：1978-07-20

    申请人： Masanao Okatani ,  Hiroshi Onishi ,  Yoshiaki Ishibashi ,  Reisuke Sato ,  Hisashi Suganuma ,  Tomohisa Yokogawa ,  Yoshiharu Ueki ,  Haruo Kama ,  Tadashi Kosuga ,  Tadashi Ogawa

    发明人： Masanao Okatani ,  Hiroshi Onishi ,  Yoshiaki Ishibashi ,  Reisuke Sato ,  Hisashi Suganuma ,  Tomohisa Yokogawa ,  Yoshiharu Ueki ,  Haruo Kama ,  Tadashi Kosuga ,  Tadashi Ogawa

    IPC分类号： H03J7/18 ,  G11B15/02 ,  G11B27/34 ,  G11B31/00 ,  H03J5/02 ,  H04B1/20 ,  H05C1/00 ,  G11B15/12

    CPC分类号： H03J5/0263 ,  G11B15/026 ,  G11B27/34 ,  G11B31/003 ,  H05C1/00

    摘要： A combination device having a magnetic recording and reproducing unit and an electronic tuning type receiver, where the channel presetting switches of the electronic tuning type receiver also can act as the operating switches of the magnetic recording and reproducing unit. The electronic tuning type receiver is of the type which is tuned by control signals provided to a tuning means by a plurality of channel selecting switches. A selection circuit is interposed between the tuning means and the plurality of channel selecting switches and provides the plurality of control signals to the tuning means when a selection switch is in a first binary state, and provides the plurality of control signals to a tape-control section when the selection switch is in a second binary state. The tape-control section, in response to the plurality of control signals, controls the mode of operation of the magnetic recording and reproducing unit, and also provides a signal indicating the mode of operation to a sensing circuit. The sensing circuit, in turn, provides mode signals to a digital display unit which can visually display the mode of operation when the magnetic recording and reproducing unit is being used, as well as can visually display the station frequency or the like of the selected station when the electronic tuning type receiver is being used.

    摘要翻译： 具有磁记录和再现单元和电子调谐型接收器的组合装置，其中电子调谐型接收器的通道预设开关也可以用作磁记录和再现单元的操作开关。 电子调谐型接收机是由多个通道选择开关提供给调谐装置的控制信号进行调谐的类型。 当选择开关处于第一二进制状态时，选择电路插在调谐装置和多个通道选择开关之间，并将多个控制信号提供给调谐装置，并将多个控制信号提供给磁带控制 当选择开关处于第二二进制状态时。 磁带控制部分响应于多个控制信号来控制磁记录和再现单元的操作模式，并且还向感测电路提供指示操作模式的信号。 感测电路又向数字显示单元提供模式信号，该数字显示单元可以在使用磁记录和再现单元时可视地显示操作模式，并且可以可视地显示所选择的站的站频率等 当使用电子调谐型接收器时。

    Electrostatic destruction preventing circuit and receiving apparatus having the same
    8.
    发明授权
    Electrostatic destruction preventing circuit and receiving apparatus having the same 失效
    防静电电路及其接收装置

    公开(公告)号：US5576920A

    公开(公告)日：1996-11-19

    申请号：US433525

    申请日：1995-05-02

    申请人： Tadashi Kosuga ,  Kazuhiko Takahashi ,  Yoshimi Tsuboi

    发明人： Tadashi Kosuga ,  Kazuhiko Takahashi ,  Yoshimi Tsuboi

    IPC分类号： H02H9/04 ,  H03F1/52 ,  H03G11/02 ,  H04B1/18 ,  H02H9/00

    CPC分类号： H03F1/52 ,  H03G11/02

    摘要： An electrostatic destruction preventing circuit for a receiving apparatus, is provided with: a first Zener diode coupled to a receiving terminal of the receiving apparatus; a second Zener diode coupled to a ground terminal of the receiving apparatus, and connected to the first Zener diode in series and in reverse polarities to each other; a first resistor connected in parallel to the first Zener diode; and a second resistor connected in parallel to the second Zener diode.

    摘要翻译： 一种用于接收装置的静电破坏防止电路设置有：耦合到接收装置的接收端的第一齐纳二极管; 耦合到所述接收装置的接地端子的第二齐纳二极管，并且彼此串联连接到所述第一齐纳二极管并以相反的极性连接; 与第一齐纳二极管并联连接的第一电阻器; 以及与第二齐纳二极管并联连接的第二电阻器。

    Center-tapped coil-based tank circuit for a balanced mixer circuit
    9.
    发明授权
    Center-tapped coil-based tank circuit for a balanced mixer circuit 失效
    用于平衡混合器电路的基于卷绕线圈的电路

    公开(公告)号：US5140705A

    公开(公告)日：1992-08-18

    申请号：US537958

    申请日：1990-06-13

    申请人： Tadashi Kosuga

    发明人： Tadashi Kosuga

    IPC分类号： H03D7/12 ,  H03D7/14 ,  H04B1/26

    CPC分类号： H03D7/1441 ,  H03D2200/0023 ,  H03D2200/0043 ,  H03D7/125

    摘要： An RF tank circuit includes a coil with a center tap, the RF tank circuit being for receving an input RF signal, and for providing a balanced mixer circuit by being arranged in one of: a) receiving a local signal through second and third capacitors at first and second coil ends, respectively, with the center tap grounded; and, b) receiving a local signal at the center tap. An impedance is connected between the first and second coil ends of the RF tank circuit, the impedance providing low impendance for a predetermined intermediate frequency signal, and high impedance for a predetermined high frequency signal and a local signal. A bias resistor is connected between a middle connecting point of the impedance and ground. The coil of the RF tank cicuit can be one of a primary and second winding of an isolation transformer, with a remaining one of the primary and secondary windings being connected to an RF signal source, the isolation transformer being for preventing a leakage of a local signal to the RF signal source.

    摘要翻译： RF电路包括具有中心抽头的线圈，所述RF振荡电路用于接收输入RF信号，并且用于通过布置在以下之一中来提供平衡混频器电路：a）通过第二和第三电容器接收本地信号 第一和第二线圈端分别与中心抽头接地; 并且b）在中心抽头处接收本地信号。 阻抗连接在RF振荡电路的第一和第二线圈端之间，为预定的中频信号提供低阻抗的阻抗，以及用于预定的高频信号和本地信号的高阻抗。 阻抗和接地的中间连接点之间连接有偏置电阻。 RF箱电路的线圈可以是隔离变压器的主绕组和第二绕组之一，其中一个和第二绕组的另一个连接到RF信号源，隔离变压器用于防止局部 信号到RF信号源。