Pulse width modulated signal amplifier with protective means
    11.
    发明授权
    Pulse width modulated signal amplifier with protective means 失效
    具有保护装置的脉宽调制信号放大器

    公开(公告)号:US4167710A

    公开(公告)日:1979-09-11

    申请号:US855389

    申请日:1977-11-28

    CPC分类号: H03F3/217 H03F1/523

    摘要: A pulse width modulated signal amplifier comprises a DC power supply for rectifying an AC input voltage to produce a pair of DC voltages of opposite polarity, a pulse width modulated signal amplifying circuit supplied with a pulse width modulated signal to produce a demodulated signal through a low pass filter, and a detecting circuit responsive to an abnormal level of the DC voltages to produce a detecting signal when a smoothing condenser of the DC power supply is overcharged by a current flowing through the low pass filter in one direction. Such detecting signal is desirably employed to prevent the appearance of the output signal from the pulse width modulated amplifying circuit.

    摘要翻译: 脉冲宽度调制信号放大器包括直流电源,用于整流交流输入电压以产生相反极性的一对直流电压;脉冲宽度调制信号放大电路,被提供脉冲宽度调制信号以通过低电平产生解调信号 以及响应于DC电压的异常电平的检测电路,当直流电源的平滑电容器由在一个方向上流经低通滤波器的电流过充电时产生检测信号。 期望采用这种检测信号来防止来自脉宽调制放大电路的输出信号的出现。

    Inverter radiation suppression
    12.
    发明授权
    Inverter radiation suppression 失效
    逆变器辐射抑制

    公开(公告)号:US4039921A

    公开(公告)日:1977-08-02

    申请号:US691826

    申请日:1976-06-01

    IPC分类号: H02M3/338 H04B15/02 H02M3/335

    CPC分类号: H02M3/3382 H04B15/02

    摘要: A transistor inverter includes at least a pair of switching transistors, a transformer with primary and secondary windings, a DC voltage source with a pair of output terminals and a voltage reference terminal, and a rectifying circuit connected to the secondary winding of the transformer. A collector electrode of one of the switching transistors is insulated from a chassis by an insulation means comprising a first insulating layer, a conductive layer such as a heat sink and a second insulating layer. The conductive layer is electrically connected to the voltage reference terminal of the DC voltage source so as not to produce an undesirable radiation through the chassis.

    Transistor amplifier
    13.
    发明授权
    Transistor amplifier 失效
    晶体管放大器

    公开(公告)号:US3968451A

    公开(公告)日:1976-07-06

    申请号:US578194

    申请日:1975-05-16

    CPC分类号: H03F3/3044 H03F1/306

    摘要: A transistor amplifier comprised of a transistor supplied with a first operating voltage and a field effect transistor having triode-type dynamic characteristics and supplied with a second operating voltage. The gate electrode of the field effect transistor is coupled to the transistor collector. In order to stabilize the field effect transistor bias current in the event of fluctuations in the second operating voltage, a voltage control circuit is responsive to such fluctuations to alter the first operating voltage so as to vary the gate voltage applied to the field effect transistor in a direction to stabilize the bias current.

    摘要翻译: 晶体管放大器由提供有第一工作电压的晶体管和具有三极管型动态特性并提供有第二工作电压的场效应晶体管构成。 场效应晶体管的栅电极耦合到晶体管集电极。 为了在第二工作电压发生波动的情况下稳定场效应晶体管偏置电流,电压控制电路响应于这种波动来改变第一工作电压,以便改变施加到场效应晶体管的栅极电压 稳定偏置电流的方向。

    Azodicarbonamide containing gas generating composition
    17.
    发明授权
    Azodicarbonamide containing gas generating composition 失效
    含偶氮二甲酰胺的气体发生组合物

    公开(公告)号:US5883330A

    公开(公告)日:1999-03-16

    申请号:US530379

    申请日:1995-10-12

    申请人: Tadao Yoshida

    发明人: Tadao Yoshida

    CPC分类号: C06B43/00 C06B29/00 C06D5/06

    摘要: A gas generating composition which is capable of significantly reducing the concentration of harmful gas components, particularly carbon monoxide, in the generated gas. Also a process for molding a gas generating composition in a suitable shape with high efficiency without a risk of explosion, fire or the like, the process being capable of producing a durable and firm molded gas generating composition.The gas generating composition of the invention contains an oxide-based catalyst comprising at least two members selected from the elements of Groups I, IV, V, VI, VII and VIII in the periodic table in addition to the nitrogen-containing organic compound and the oxygen-containing inorganic oxidizing agent both essentially incorporated in the gas generating composition. The invention also provides a process for molding a gas generating composition, the process comprising the steps of adding 5 to 20% by weight of water to a gas generating composition essentially containing a nitrogen-containing organic compound and an oxyhalogen acid salt and further containing an oxide-based catalyst to give a wet mixture, granulating the wet mixture into wet granules, drying the wet granules to provide a discrete preparation and compression-molding the discrete preparation.

    摘要翻译: PCT No.PCT / JP95 / 00192 Sec。 371 1995年10月12日第 102(e)日期1995年10月12日PCT提交1995年2月10日PCT公布。 WO95 / 21805 PCT公开号 日期1995年8月17日一种能够显着降低产生气体中有害气体组分,特别是一氧化碳浓度的气体发生组合物。 另外,也可以高效率地成型合适的形状的气体发生剂组合物,而不会发生爆炸,火灾等的制造方法,该方法能够生产耐久且牢固的模制气体产生组合物。 本发明的气体发生组合物除了含氮有机化合物以外,还含有包含选自元素周期表中第Ⅰ,Ⅳ,Ⅴ,Ⅵ,Ⅶ和Ⅷ族元素中的至少两种元素的氧化物基催化剂, 含氧无机氧化剂基本上并入气体发生组合物中。 本发明还提供了一种用于模制气体发生组合物的方法,该方法包括以下步骤:向基本上含有含氮有机化合物和卤代卤酸盐的气体发生组合物中加入5至20重量%的水,并进一步含有 氧化物基催化剂以产生湿混合物,将湿混合物制粒成湿颗粒,干燥湿颗粒以提供离散制备并压缩离散制剂。

    Recording medium, address recording method and apparatus, and
recording/reproducing method and apparatus for reducing crosstalk of
addressing signals
    19.
    发明授权
    Recording medium, address recording method and apparatus, and recording/reproducing method and apparatus for reducing crosstalk of addressing signals 失效
    记录介质,地址记录方法和装置,以及用于减少寻址信号的串扰的记录/再现方法和装置

    公开(公告)号:US5844882A

    公开(公告)日:1998-12-01

    申请号:US819427

    申请日:1997-03-17

    摘要: Edges on both sides of each groove on a disk 11 are wobbled to indicate the addresses of recording locations. A laser beam for detection of data is radiated to a land for recording data, forming a spot 51-1. Two laser beams for detection of a tracking error are radiated to edges on both sides of a groove in such a way that the middle between the two laser beams coincides with the center of the groove, forming spots 51-2 and 51-3. By using such a tracking-error detecting laser beam to read out address information, the laser beam can be radiated to only the edge on a predetermined side of a groove. As a result, an address can be read out with a reduced amount of crosstalk from another groove even if the track pitch is small. Address information is thus read out with a highly accurate degree even in the case of a small track pitch.

    摘要翻译: 在盘11上的每个凹槽的两侧上的边缘摆动以指示记录位置的地址。 用于检测数据的激光束被辐射到用于记录数据的焊盘,形成光点51-1。 用于检测跟踪误差的两个激光束辐射到凹槽两侧的边缘,使得两个激光束之间的中间与凹槽的中心重合,形成光斑51-2和51-3。 通过使用这种跟踪误差检测激光束来读出地址信息,激光束可以仅辐射到槽的预定侧上的边缘。 结果,即使轨道间距小,也可以从另一个沟槽减少的串扰量来读出地址。 因此,即使在小轨道间距的情况下,地址信息也以高度准确的程度读出。

    Air bag gas generating composition
    20.
    发明授权
    Air bag gas generating composition 失效
    气囊气体发生组合物

    公开(公告)号:US5827996A

    公开(公告)日:1998-10-27

    申请号:US849526

    申请日:1997-05-29

    CPC分类号: C06B45/22 C06D5/06

    摘要: A gas-generating composition for air bags, which provides low explosion risk and low toxicity, has at least one gas-generating base selected among urazol and metal salts thereof, as the active ingredient, and an oxidizing agent. Urazol and metal salts thereof can effectively generate gas at a low burning temperature when in combination with the oxidizing agent.

    摘要翻译: PCT No.PCT / JP96 / 02760 Sec。 371日期1997年5月29日 102(e)日期1997年5月29日PCT提交1996年9月24日PCT公布。 公开号WO97 / 12848 PCT 日期1997年04月10日具有低爆炸危险性和低毒性的气囊生成组合物具有至少一种选自其脲和金属盐作为活性成分的气体发生基和氧化剂。 当与氧化剂组合时,脲唑及其金属盐能够在低燃烧温度下有效地产生气体。