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    • 2. 发明授权
    • Rotary switch type television tuner
    • 旋转开关式电视调谐器
    • US4305156A
    • 1981-12-08
    • US104443
    • 1979-12-17
    • Katsuo ItoBunjiro MurataYoji Maeda
    • Katsuo ItoBunjiro MurataYoji Maeda
    • H04B1/08H03J1/00H03J5/28H04B1/26H04N5/64H03J5/02
    • H03J5/28
    • 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.
    • 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。
    • 3. 发明授权
    • Television tuner circuit for selection of VHF and UHF/VHF converted
television signals
    • 用于选择VHF和UHF / VHF转换的电视信号的电视调谐器电路
    • US4112378A
    • 1978-09-05
    • US780112
    • 1977-03-22
    • Katsuo ItoBunjiro MurataYoji MaedaEiichi Hibino
    • Katsuo ItoBunjiro MurataYoji MaedaEiichi Hibino
    • H04B1/18H03J5/24H03J5/28H04B1/26H04B1/06
    • H03J5/24
    • 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.
    • 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。
    • 4. 发明授权
    • VHF Television tuner with easy/flexible access
    • US4157504A
    • 1979-06-05
    • US780109
    • 1977-03-22
    • Katsuo ItoBunjiro MurataYoji MaedaKazunori YoshimuraEiichi Hibino
    • Katsuo ItoBunjiro MurataYoji MaedaKazunori YoshimuraEiichi Hibino
    • H03J1/00H04B1/06
    • H03J1/00
    • 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.
    • 5. 发明授权
    • Structure for fixing feedthrough capacitor in high-frequency device and
manufacturing method of high-frequency device
    • 高频装置中的馈通电容器固定结构及高频装置的制造方法
    • US5097389A
    • 1992-03-17
    • US487840
    • 1990-03-05
    • Katsuo ItoKazunori KinoshitaKazuhiro Tsuji
    • Katsuo ItoKazunori KinoshitaKazuhiro Tsuji
    • H05K7/04H05K7/14H05K9/00
    • H05K9/006
    • A high frequency device having a shield casing with the interior divided into small sections by shield plates, and with circuit blocks of a high frequency circuit in the respective sections including substrates with circuit components on the upper surface with terminals extending through the substrate to a printed circuit on the lower surface. A feedthrough capacitor is mounted in the casing or in the shield plate, or both, in a level corresponding to the level of the substrate, such that the feedthrough terminal of the capacitor extends adjacent the printed circuit, and such that, when the device is immersed in solder to solder the terminals of the components to the printed circuit, the feedthrough terminal of the capacitor is also soldered to the printed circuit and the capacitor itself is also soldered to the casing or the shield plate. Further, steadying fingers are provided around the fixing hole portion in the casing or plate, and these are spaced around the periphery of the fixing hole portion so that the two fingers nearest the bottom edge of the casing or plate are a maximum distance from the edge, so as to maximize the resistance of the casing or plate to distortion when the fingers are bent laterally from within the fixing hole portion.
    • 具有屏蔽壳体的高频器件,其内部通过屏蔽板分成小部分,并且在各部分中具有高频电路的电路块,包括在上表面上具有电路部件的基板,端子通过基板延伸到印刷 电路在下表面。 馈通电容器安装在壳体或屏蔽板中,或者两者中,以与衬底的电平相对应的电平,使得电容器的馈通端子相邻于印刷电路延伸,并且使得当器件为 浸入焊料中以将部件的端子焊接到印刷电路,电容器的馈通端子也焊接到印刷电路,并且电容器本身也焊接到壳体或屏蔽板。 此外,在壳体或板中的固定孔部分周围设置稳定的指状物,并且这些指状物围绕固定孔部分的周边间隔开,使得最靠近壳体或板的底部边缘的两个指状物距离边缘的最大距离 以便当手指从固定孔部分中横向弯曲时,使壳体或板的阻力最大化。
    • 7. 发明授权
    • CATV System
    • 有线电视系统
    • US4507627A
    • 1985-03-26
    • US448372
    • 1982-12-09
    • Katsuo ItoBunjiro MurataKazunori Yoshimura
    • Katsuo ItoBunjiro MurataKazunori Yoshimura
    • H04N7/10H01F1/10
    • H04N7/104
    • 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.
    • 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。
    • 8. 发明授权
    • Capacitor combined shield case
    • 电容器组合屏蔽盒
    • US4329733A
    • 1982-05-11
    • US70601
    • 1979-08-29
    • Katsuo ItoBunjiro Murata
    • Katsuo ItoBunjiro Murata
    • H01G4/35H04B15/02H01G4/42
    • H01G4/35H04B15/02
    • 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.
    • 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。
    • 9. 发明授权
    • Toning shaft for a rotary switch
    • 旋转开关的调音轴
    • US4270394A
    • 1981-06-02
    • US912767
    • 1978-06-05
    • Katsuo ItoBunjiro MurataKazunori Yoshimura
    • Katsuo ItoBunjiro MurataKazunori Yoshimura
    • H03J5/28H05K5/04H05K9/00F16H35/18
    • H05K9/0018H03J5/28H05K5/04Y10S116/29Y10T428/2976Y10T74/2084
    • 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.
    • 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。
    • 10. 发明授权
    • Coaxial cable connector receptacle
    • 同轴电缆连接器插座
    • US4256935A
    • 1981-03-17
    • US66579
    • 1979-08-15
    • Katsuo ItoBunjiro MurataKazunori YoshimuraKenichi Yamaguchi
    • Katsuo ItoBunjiro MurataKazunori YoshimuraKenichi Yamaguchi
    • H01R24/46H01R13/70
    • H01R24/46H01R2103/00Y10T307/74
    • 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.
    • 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。