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    • 3. 发明授权
    • In-building CATV system, down-converter, up-converter and amplifier
    • 建筑内CATV系统,下变频器,上变频器和放大器
    • US07047555B1
    • 2006-05-16
    • US09621527
    • 2000-07-21
    • Mitsuhiko InagumaShigemitsu ToriyamaYasuo Nakayama
    • Mitsuhiko InagumaShigemitsu ToriyamaYasuo Nakayama
    • H04N7/16H04N7/18H04N7/173
    • H04N7/17309H04N7/102H04N7/106H04N21/42676
    • In order to correctly perform frequency conversion without using a pilot signal from an external system in a CATV system in which an upward signal is converted to a high frequency in-building upward signal using an up-converter and the in-building upward signal is converted to the original upward signal using a down-converter, there is proposed a down-converter provided with a reference oscillation circuit for generating a reference signal with a frequency lower than that of a downward signal or the in-building upward signal. The in-building upward signal is frequency-converted using the reference signal and the reference signal is transmitted to a transmission line of the terminal side. A bi-directional amplifier on the transmission line can not only amplify the downward signal and the in-building upward signal bi-directionally but also transmit the reference signal to an up-converter of the terminal side. The transmitted reference signal is extracted in the up-converter and the upward signal is frequency-converted to the in-building upward signal.
    • 为了在不使用来自CATV系统中的外部系统的导频信号的情况下正确地执行变频,其中使用上变频器将向上信号转换为高频建筑内向上信号,并且建筑内向上信号被转换 使用下变频器的原始上行信号,提出了一种具有参考振荡电路的下变频器,用于产生频率低于下行信号或建筑内向上信号的参考信号。 建筑内向上信号使用参考信号进行频率转换,参考信号被发送到终端侧的传输线。 传输线上的双向放大器不仅可以双向放大向下信号和建筑内向上信号,而且可以将参考信号发送到终端侧的上变频器。 在上变频器中提取发送的参考信号,并将向上信号频率转换为建筑内向上信号。
    • 5. 发明授权
    • Method for soldering two kinds of parts on one-side printed board
    • 在单面印刷电路板上焊接两种零件的方法
    • US5070604A
    • 1991-12-10
    • US629140
    • 1990-12-18
    • Mitsuyuki BanbaHideki MatsuoYasuo NakayamaHideo Suzuki
    • Mitsuyuki BanbaHideki MatsuoYasuo NakayamaHideo Suzuki
    • H05K3/30H05K3/34
    • H05K3/306H05K3/3415H05K2203/1484H05K2203/1572H05K3/305H05K3/3447H05K3/3484Y02P70/613Y10T29/49139Y10T29/49144
    • The present invention relates to a method for soldering two kinds of parts, parts with leads and chip parts, on one-side printed board, comprising coating a cream solder on a plurality of points of a wiring pattern surface of one-side printed board and coating an adhesive for adhering parts with leads on a non-wiring pattern, adhering parts with leads to said non-wiring pattern surface by said adhesive, passing leads of the parts with leads through lead insert holes of said one-side printed board to insert the same into one cream solder on the wiring pattern surface from the side of the non-wiring pattern surface, mounting chip parts on the other cream solder on said wiring pattern surface, thereafter heating at once the whole cream solder on the wiring pattern to simultaneously reflow-solder the parts with leads and chip parts whereby the parts with leads and the chip parts can be simultaneously soldered by a single reflow soldering step.
    • 本发明涉及在一侧印刷电路板上焊接两种部件,引线和芯片部件的部件的方法,包括在一侧印刷电路板的布线图形表面的多个点上涂覆膏状焊膏,以及 涂布粘合剂用于以非布线图案的引线粘合部件,用引线将部件与引线粘合到所述非布线图案表面上,所述粘合剂将引线通过引线穿过所述单面印刷板的引线插入孔插入 在非布线图案表面侧的布线图案表面上形成一个膏状焊膏,将芯片部分安装在所述布线图案表面上的另一个膏状焊料上,然后同时加热布线图案上的整个奶油焊料 用引线和芯片部件回流焊接部件,由此可以通过单个回流焊步骤同时焊接引线部分和芯片部件。
    • 7. 发明授权
    • Light measuring circuit
    • 光测电路
    • US4400087A
    • 1983-08-23
    • US262895
    • 1981-05-12
    • Yasuo Nakayama
    • Yasuo Nakayama
    • G03B7/081G01J1/46G03B7/083G03B15/05H05B41/32H05B41/14
    • H05B41/325G01J1/46
    • A light measuring element which is provided with a pulse signal generator for generating pulse signals the duty ratio of which varies in accordance with a coefficient related to the exposure for photographing, a switching element which is driven by the output pulse signals from the pulse signal generator, and a light integrating circuit which includes a photo detector and an integrating capacitor and provides the voltage across the integrating capacitor as a light measure output. The light integrating circuit performs an intermittent light integrating operation by the action of the switching element. The integration period of the light integrating circuit is varied by varying the duty ratio of drive signals to the switching element which are supplied from a pulse signal generator, which duty ratio varies with a coefficient related to the proper exposure for photographing.
    • 一种光测量元件,其设置有用于产生脉冲信号的脉冲信号,所述脉冲信号的占空比根据与用于拍摄的曝光有关的系数而变化;开关元件,其由来自脉冲信号发生器的输出脉冲信号驱动 以及包含光检测器和积分电容器的光积分电路,并且将积分电容器两端的电压提供为光测量输出。 光积分电路通过开关元件的动作进行间歇光积分动作。 通过改变从脉冲信号发生器提供的对开关元件的驱动信号的占空比来改变光积分电路的积分周期,该占空比随与用于拍摄的适当曝光相关的系数而变化。
    • 8. 发明授权
    • Automatic flash unit
    • 自动闪光灯组件
    • US4298826A
    • 1981-11-03
    • US87469
    • 1979-10-22
    • Yasuo Nakayama
    • Yasuo Nakayama
    • H05B41/32
    • H05B41/325
    • A series control type automatic flash unit which is capable of achieving completely controlled flashing by controlling electrical energy supplied from a main capacitor to a discharge lamp by means of a first switching element connected in series with the discharge lamp. A series circuit of a second switching element conducted by a light control signal derived from light control means and a commutation capacitor is connected in parallel with the series circuit of the discharge lamp and the first switching element, and the commutation capacitor is charged by charging means in a predetermined polarity. This charging is performed at least prior to the state of commutation, and upon conduction of the second switching element by the light control signal, stored charges of the commutation capacitor are applied via the second switching element to the first switching element to place it in a reverse biased condition. As a consequence, the first switching element is turned OFF to stop lighting of the discharge lamp. Since the second switching element which still remains conductive at that time is connected in parallel with the discharge lamp, no unnecessary discharge current flows in the discharge lamp immediately after turning OFF of the first switching element; thus, the quantity of light emitted by the discharge lamp can be controlled with high precision.
    • 一种串联控制型自动闪光单元,其能够通过与通过与放电灯串联连接的第一开关元件控制从主电容器提供给放电灯的电能来实现完全控制的闪光。 通过由光控制装置和换向电容器导出的光控制信号传导的第二开关元件的串联电路与放电灯和第一开关元件的串联电路并联连接,并且换向电容器由充电装置 以预定的极性。 该充电至少在换向状态之前进行,并且在通过光控制信号导通第二开关元件时,通过第二开关元件将换向电容器的存储电荷施加到第一开关元件以将其置于 反向偏置状态。 结果,第一开关元件被断开以停止放电灯的点亮。 由于此时仍然保持导通的第二开关元件与放电灯并联连接,因此在第一开关元件断开之后立即不会在放电灯中流过不必要的放电电流; 因此,可以高精度地控制由放电灯发出的光量。