公开(公告)号：US4112378A

公开(公告)日：1978-09-05

申请号：US780112

申请日：1977-03-22

申请人： Katsuo Ito ,  Bunjiro Murata ,  Yoji Maeda ,  Eiichi Hibino

发明人： Katsuo Ito ,  Bunjiro Murata ,  Yoji Maeda ,  Eiichi Hibino

IPC分类号： H04B1/18 ,  H03J5/24 ,  H03J5/28 ,  H04B1/26 ,  H04B1/06

CPC分类号： H03J5/24

摘要： A VHF television tuner circuit for selection of a television signal through mechanical selection of inductance coils comprises a first terminal for receiving a VHF television signal comprising a high and low VHF channel signals; a second terminal for receiving a UHF/VHF converted television signal; a mechanical channel selection switch arrangement for selection of a plurality of channel positions by rotation of a channel selection shaft said mechanical channel selection switch arrangement comprising a radio frequency coil switching stage and an oscillation coil switching stage; a radio frequency coil means coupled to the radio frequency coil switching stage; an oscillation coil coupled to the oscillation coil switching stage; a radio frequency amplifier coupled to the radio frequency coil switching stage for selectively amplifying a desired radio frequency signal; a local oscillator coupled to the oscillation coil switching stage for providing a local oscillation frequency, the frequency of which is different by a given frequency difference from the selectively amplified radio frequency signal; and a mixer responsive to the radio frequency amplifier and the local oscillator for providing an intermediate frequency signal. The radio frequency coil switching stage comprises a first stage radio frequency coil switch for selectively grounding or disconnecting the transmission path from said first terminal and for selecting a radio frequency coil corresponding to each VHF channel, and a second stage radio frequency coil switch selectably connectable to the radio frequency coil selected by the first stage radio frequency coil switch for selectively connecting said second terminal to said radio frequency amplifier, and for selectively connecting various capacitors in various ways to form a resonance circuit for selecting a desired radio frequency.

摘要翻译： 用于通过电感线圈的机械选择来选择电视信号的VHF电视调谐器电路包括：用于接收包括高和低VHF信道信号的VHF电视信号的第一终端; 用于接收UHF / VHF转换的电视信号的第二终端; 机械通道选择开关装置，用于通过通道选择轴的所述机械通道选择开关装置的旋转来选择多个通道位置，所述机械通道选择开关装置包括射频线圈切换级和振荡线圈切换级; 耦合到射频线圈切换级的射频线圈装置; 耦合到振荡线圈切换级的振荡线圈; 耦合到所述射频线圈切换级的射频放大器，用于选择性地放大期望的射频信号; 耦合到振荡线圈切换级的本地振荡器，用于提供本地振荡频率，其频率与来自选择性放大的射频信号的给定频率差异; 以及响应于射频放大器和本地振荡器的用于提供中频信号的混频器。 射频线圈切换级包括：第一级射频线圈开关，用于选择性地接地或断开与所述第一端子的传输路径，并选择与VHF通道相对应的射频线圈;以及第二级射频线圈开关，其可选择地连接到 由第一级射频线圈开关选择的射频线圈，用于选择性地将所述第二端子连接到所述射频放大器，并且以各种方式选择性地连接各种电容器，以形成用于选择所需射频的谐振电路。

公开(公告)号：US4157504A

公开(公告)日：1979-06-05

申请号：US780109

申请日：1977-03-22

申请人： Katsuo Ito ,  Bunjiro Murata ,  Yoji Maeda ,  Kazunori Yoshimura ,  Eiichi Hibino

发明人： Katsuo Ito ,  Bunjiro Murata ,  Yoji Maeda ,  Kazunori Yoshimura ,  Eiichi Hibino

IPC分类号： H03J1/00 ,  H04B1/06

CPC分类号： H03J1/00

摘要： A VHF television tuner for selection of a broadcasting television signal through mechanical switching selection of inductance coils, comprising; a tuner casing; a mechanical channel selection switch arrangement provided in said casing and including a rotatably mounted channel selection shaft for selection of inductance coils by rotation of said shaft; a radio frequency amplifier operatively coupled to the selected inductance coils for selectively amplifying a desired radio frequency signal; a local oscillator operatively coupled to said selected inductance coils for providing a local oscillation frequency signal, the frequency of which is different by a given frequency difference from said selectively amplified radio frequency signal; a mixer responsive to the radio frequency signal from said radio frequency amplifier and the local oscillation frequency signal from said local oscillator for providing an intermediate frequency signal; and an intermediate frequency tuned circuit for selectively withdrawing said intermediate frequency signal, said intermediate frequency tuned circuit comprising an intermediate frequency transformer, said intermediate frequency transformer comprising an intermediate frequency coil wound around a bobbin having a given axis and a magnetic core threadably inserted in said bobbin for adjustment of the inductance value of said intermediate frequency coil by rotation of said magnetic core about said axis of said bobbin, said intermediate frequency transformer being provided in said casing such that the axis of said bobbin is oriented in the direction substantially parallel to the axial direction of said channel selection shaft, said casing being formed of an aperture at the position in alignment with the axis of said bobbin, whereby access to said intermediate frequency transformer is allowed from the outside of said casing for adjustment of the inductance value of said intermediate frequency transformer.

公开(公告)号：US4747019A

公开(公告)日：1988-05-24

申请号：US806670

申请日：1985-12-09

申请人： Katsuo Ito ,  Bunjiro Murata ,  Yoji Maeda ,  Masao Uno ,  Kazunori Kinoshita ,  Kazuhiro Tsuji

发明人： Katsuo Ito ,  Bunjiro Murata ,  Yoji Maeda ,  Masao Uno ,  Kazunori Kinoshita ,  Kazuhiro Tsuji

IPC分类号： H04N5/205 ,  H05K3/34 ,  H05K9/00

CPC分类号： H05K9/006 ,  H05K3/3405 ,  H05K2201/09809 ,  H05K2201/10015 ,  H05K2201/10371 ,  H05K2201/10446 ,  Y10T29/49144

摘要： A feedthrough capacitor arrangement which comprises a frame having a first recess, printed circuit boards disposed in the vicinity of the frame, a feedthrough capacitor having an outer electrode and a central electrode placed in the first recess and a shield member for pressing the feedthrough capacitor placed in the first recess thereby to hold the feedthrough capacitor in association with the frame. In this arrangement, the outer electrode of the feedthrough capacitor is soldered to the frame and to the shield member while the central electrode is soldered to conductor patterns on the printed circuit boards.

摘要翻译： 馈通电容器装置，其包括具有第一凹部的框架，布置在框架附近的印刷电路板，具有设置在第一凹部中的外部电极和中心电极的穿通电容器和用于按压放电电容器的屏蔽构件 在第一凹部中，由此保持与框架相关联的穿通电容器。 在这种布置中，旁路电容器的外部电极被焊接到框架和屏蔽构件，同时中心电极被焊接到印刷电路板上的导体图案。

公开(公告)号：US4305156A

公开(公告)日：1981-12-08

申请号：US104443

申请日：1979-12-17

申请人： Katsuo Ito ,  Bunjiro Murata ,  Yoji Maeda

发明人： Katsuo Ito ,  Bunjiro Murata ,  Yoji Maeda

IPC分类号： H04B1/08 ,  H03J1/00 ,  H03J5/28 ,  H04B1/26 ,  H04N5/64 ,  H03J5/02

CPC分类号： H03J5/28

摘要： A television tuner comprises a rotary switching shaft, switching plates associated with the rotary switching shaft, and an input tuning portion, an interstage tuning portion and a frequency converting portion coupled to the switching plates and adapted for channel selection by means of the rotary switching shaft. An additional plate is provided between one switching plate associated with the interstage tuning portion and another switching plate associated with the frequency converting portion. The additional plate is provided with a surface acoustic wave device performing the function of a video intermediate frequency filter and with an integrated circuit including a video intermediate frequency amplifier and a video detector.

摘要翻译： 电视调谐器包括旋转切换轴，与旋转切换轴相关联的切换板，以及输入调谐部分，级间调谐部分和耦合到切换板的频率转换部分，并且适于通过旋转切换轴 。 在与级间调谐部分相关联的一个切换板和与频率转换部分相关联的另一切换板之间设置一个附加的板。 附加板设置有执行视频中频滤波器的功能的声表面波器件和具有视频中频放大器和视频检测器的集成电路。

公开(公告)号：US4507627A

公开(公告)日：1985-03-26

申请号：US448372

申请日：1982-12-09

申请人： Katsuo Ito ,  Bunjiro Murata ,  Kazunori Yoshimura

发明人： Katsuo Ito ,  Bunjiro Murata ,  Kazunori Yoshimura

IPC分类号： H04N7/10 ,  H01F1/10

CPC分类号： H04N7/104

摘要： A CATV system comprises two coaxial cables (11, 12) for transmitting information obtained from a center unit, a slide switch (1), and a CATV converter (30). As a slider (73) of the slide switch is slided in one direction with the same in contact with a common contact (101) connected to the CATV converter, the slider is placed in contact with a first fixed contact (104) connected to one coaxial cable while a first terminating contact (110) connected to a first terminating resistor (13) is separated from the first fixed contact. When the slider is slided in the other direction, the slider is placed in contact with a second fixed contact (107) connected to the other coaxial cable, while a second terminating contact (111) connected to the second terminating resistor (14) is separated from the second fixed contact. Accordingly, each of the coaxial cables is not opened through selection of the slide switch, whereby mixing of an image is prevented from occurring due to mismatching.

摘要翻译： CATV系统包括用于发送从中心单元，滑动开关（1）和CATV转换器（30）获得的信息的两个同轴电缆（11,12）。 当滑动开关的滑动件（73）沿与连接到CATV转换器的公共接点（101）相接触的一个方向滑动时，滑块被放置成与连接到CATV转换器的第一固定触头（104）接触 同时电缆，而连接到第一终端电阻器（13）的第一端接触头（110）与第一固定触头分离。 当滑块沿着另一个方向滑动时，滑块被放置成与连接到另一个同轴电缆的第二固定触点（107）接触，而连接到第二终端电阻器（14）的第二终端触头（111）被分离 从第二个固定的联系人。 因此，通过滑动开关的选择，不使各同轴电缆断开，从而防止由于不匹配而发生图像的混合。

公开(公告)号：US4329733A

公开(公告)日：1982-05-11

申请号：US70601

申请日：1979-08-29

申请人： Katsuo Ito ,  Bunjiro Murata

发明人： Katsuo Ito ,  Bunjiro Murata

IPC分类号： H01G4/35 ,  H04B15/02 ,  H01G4/42

CPC分类号： H01G4/35 ,  H04B15/02

摘要： A shield case having openings at both ends is fabricated by drawing a blank and the opening at one end of the shield case is formed at the periphery thereof as a flat annular receiving portion, with a portion intermediate the receiving portion and the case side surface curved with a gentle curvature. A capacitor including a doughnut shaped dielectric unit is disposed inside the shield case contiguous to the receiving portion and a metallic cylinder is provided extending through the aperture of the dielectric unit of the capacitor and the one end opening of the shield case. One electrode is formed on one main surface of the doughnut shaped dielectric unit, while the other electrode is formed on the other main surface of the unit and a lead out electrode is also formed around the aperture on the other main surface of the unit electrically isolated from the said other electrode. A resistor film is formed between the other electrode and the lead out electrode, and electrical connection is made between the metallic cylinder and the one electrode, and an electrical connection is also made between the metallic cylinder and the lead out electrode, while these are mechanically fixed.

摘要翻译： 通过绘制坯料制造出在两端具有开口的屏蔽壳体，屏蔽壳体的一端处的开口形成为平坦的环形容纳部分，其周边部分在容纳部分和壳体侧表面之间弯曲 有一个平缓的曲率。 包括环形介电单元的电容器设置在与接收部分相邻的屏蔽壳体的内部，并且提供延伸穿过电容器的电介质单元的孔和屏蔽壳的一端开口的金属圆筒。 一个电极形成在环形介质单元的一个主表面上，而另一个电极形成在该单元的另一个主表面上，并且引出电极也形成在该单元的另一个主表面上的孔上，其电隔离 从所述另一个电极。 在另一个电极和引出电极之间形成电阻膜，并且在金属圆筒和一个电极之间形成电连接，并且在金属圆筒和引出电极之间也形成电连接，而这些是机械 固定。

公开(公告)号：US4270394A

公开(公告)日：1981-06-02

申请号：US912767

申请日：1978-06-05

申请人： Katsuo Ito ,  Bunjiro Murata ,  Kazunori Yoshimura

发明人： Katsuo Ito ,  Bunjiro Murata ,  Kazunori Yoshimura

IPC分类号： H03J5/28 ,  H05K5/04 ,  H05K9/00 ,  F16H35/18

CPC分类号： H05K9/0018 ,  H03J5/28 ,  H05K5/04 ,  Y10S116/29 ,  Y10T428/2976 ,  Y10T74/2084

摘要： A rotary type television tuner includes a chassis and a channel changing shaft extending through the chassis and having an operating knob mounted on the front end thereof for rotating the shaft. The channel changing shaft is made of a synthetic resin reinforced with glass fiber and is circular in cross-section over the greater part, the knob mounting section being formed with a flat portion and having a cross-section that is nearly semicircular. The root of the flat portion of the knob mounting section is rounded. A reinforcing rod assembly comprising a reinforcing rod made of a metal and a reinforcing rod made of a rigid synthetic resin which are connected together as by threads is embedded in the channel changing shaft including its knob mounting section. The length of the reinforcing rod of metal is such that when it is assembled as the tuner, it extends from the front end nearly to the chassis plate.

摘要翻译： 旋转式电视调谐器包括底座和延伸穿过底盘的通道改变轴，并且具有安装在其前端上的用于旋转轴的操作旋钮。 通道切换轴由玻璃纤维增​​强的合成树脂制成，并且在大部分上具有圆形的横截面，该旋钮安装部分形成有平坦部分并且具有接近半圆形的横截面。 旋钮安装部分的平坦部分的根部是圆形的。 包括由金属制成的加强杆的加强杆组件和由螺纹连接在一起的由刚性合成树脂制成的加强杆嵌入在包括其旋钮安装部分的通道改变轴中。 金属加强杆的长度使得当其作为调谐器组装时，其从前端几乎延伸到底板。

公开(公告)号：US4256935A

公开(公告)日：1981-03-17

申请号：US66579

申请日：1979-08-15

申请人： Katsuo Ito ,  Bunjiro Murata ,  Kazunori Yoshimura ,  Kenichi Yamaguchi

发明人： Katsuo Ito ,  Bunjiro Murata ,  Kazunori Yoshimura ,  Kenichi Yamaguchi

IPC分类号： H01R24/46 ,  H01R13/70

CPC分类号： H01R24/46 ,  H01R2103/00 ,  Y10T307/74

摘要： A coaxial cable connector receptacle comprises a cylindrical shield casing made of a metallic plate and having openings at both ends, and an inner casing made of an insulating material and housed inside the shield casing and having apertures at both ends corresponding to the openings of the shield casing. The inner casing is formed of a protruding portion at the side surface thereof, the protruding portion being formed of a groove communicating with the inside of the inner casing and receiving a contact of an external circuit. A contact member having a first and second contact is provided inside the inner casing and the first contact is positioned for receiving a center conductor of a coaxial cable at the position opposing one aperture of the inner casing, while the second contact is formed at the position opposing the groove of the protruding portion in the direction orthogonal to the longitudinal direction for receiving a contact of the external circuit. The center conductor of the coaxial cable is placed in contact with the first contact of the contact member through the opening of the shield casing and the aperture of the inner casing, while the contact from the external circuit is placed in contact with the second contact of the contact member through the groove of the protruding portion.

摘要翻译： 同轴电缆连接器插座包括由金属板制成并且在两端具有开口的圆柱形屏蔽壳体和由绝缘材料制成并且容纳在屏蔽壳体内部的内壳体，并且在两端具有对应于屏蔽开口的孔 套管。 内壳由其侧面的突出部形成，突出部由与内壳的内部连通并且接收外部电路的触点的槽形成。 具有第一和第二触点的接触构件设置在内壳体的内部，并且第一触点被定位成用于在与内壳的一个孔相对的位置处接收同轴电缆的中心导体，而第二触点形成在位置 在与纵向垂直的方向上与突出部分的槽相对，以接收外部电路的接触。 同轴电缆的中心导体通过屏蔽壳体的开口和内壳的开口与接触构件的第一触点接触，而外部电路的触点与第二触点的第二触点接触 所述接触构件通过所述突出部分的所述凹槽。

公开(公告)号：US4249790A

公开(公告)日：1981-02-10

申请号：US66561

申请日：1979-08-15

申请人： Katsuo Ito ,  Bunjiro Murata ,  Kazunori Yoshimura

发明人： Katsuo Ito ,  Bunjiro Murata ,  Kazunori Yoshimura

IPC分类号： H01R13/04 ,  H01R9/05 ,  H01R17/04

CPC分类号： H01R9/0521

摘要： A coaxial cable is electrically connected to a connector receptacle by means of a coaxial cable connector plug. The coaxial cable connector plug comprises a clip which acts as an elastic pressure contact connected to a central conductor of the coaxial cable, and a plug pin electrically connected to the clip and adapted to be inserted into a receptacle opening of the connector receptacle. The clip and the plug pin are integrally formed in a single metallic plate. The clip is formed by folding the metallic plate at one end portion, while the plug pin is formed at the other end portion of the metallic plate by curling the same, with engaging portions being formed at the joint portion of the clip and the plug pin and protruding in the direction orthogonal to the longitudinal direction. The clip is housed in an insulating inner casing, while the pin is guided outward extending therefrom. The inner casing is covered with a shield casing. The inner casing is formed with an aperture for insertion of a center conductor of a coaxial cable at the position corresponding to the clip and the shield casing is formed with an aperture for insertion of an inner insulation of the coaxial cable at the corresponding portion. An outer conductor of the coaxial cable is pressure fixed to the side surface of the shield casing.

摘要翻译： 同轴电缆通过同轴电缆连接器插头电连接到连接器插座。 同轴电缆连接器插头包括用作连接到同轴电缆的中心导体的弹性压力触点的夹子和电连接到夹子并适于插入连接器插座的插座开口中的插头销。 夹子和插头销一体地形成在单个金属板中。 夹子通过在金属板的一个端部处折叠而形成，同时通过使金属板的另一端部弯曲形成在插塞销的另一端部，其中接合部形成在夹子的接合部分处，插头销 并且在与长度方向正交的方向上突出。 夹子被容纳在绝缘内壳中，而销被向外引导延伸。 内壳被屏蔽罩覆盖。 内壳形成有用于将同轴电缆的中心导体插入对应于夹子的位置处的孔，并且屏蔽壳体形成有用于在相应部分处插入同轴电缆的内绝缘体的孔。 同轴电缆的外导体压力固定在屏蔽外壳的侧面。

公开(公告)号：US4206326A

公开(公告)日：1980-06-03

申请号：US907849

申请日：1978-05-19

申请人： Katsuo Ito ,  Kazunori Yoshimura ,  Kazuo Kontani ,  Bunjiro Murata

发明人： Katsuo Ito ,  Kazunori Yoshimura ,  Kazuo Kontani ,  Bunjiro Murata

IPC分类号： H01H19/08 ,  H01H19/02

CPC分类号： H01H19/08

摘要： The present invention relates to a rotary switch which is an improved stator provided with a plurality of projections extending outwardly from its edges to confront the corresponding surfaces of an improved chassis or the like to which the stator is to be secured. The improved chassis is formed, in positions corresponding to the positions of the projections of the stator, with openings or cutout portions each having a claw which can be deformed or bent. By bending the claws toward the projections after inserting the projections into the openings in the chassis, the projections of the stator are firmly held between the chassis and the claws and rigidly secure the stator to the chassis.

摘要翻译： 旋转开关技术领域本发明涉及一种旋转开关，其是改进的定子，其设置有从其边缘向外延伸的多个突起，以面对将被固定到该定子的改进的底盘或类似物的对应表面。 改进的底盘形成在与定子的突起的位置相对应的位置，每个开口或切口部分都具有可以变形或弯曲的爪。 通过在将突起插入底架的开口中之后将爪弯曲成突起，定子的突起牢固地保持在底座和爪之间，并将定子刚性地固定到底架上。