&pgr;/2 phase shifter
    42.
    发明授权
    &pgr;/2 phase shifter 失效
    pi / 2移相器

    公开(公告)号:US06815993B1

    公开(公告)日:2004-11-09

    申请号:US10110203

    申请日:2002-04-17

    IPC分类号: H03H1116

    摘要: In a &pgr;/2 phase shifter, first and second signals and first and second inverted signals are produced based on input signals. The first and second signals have the same amplitude and are out of phase from each other, and the first and second inverted signals respectively correspond to the first and second signals with their respective phases inverted. A first output signal is produced by adding the first signal and the second signal, and a second output signal is produced by adding the first signal and the second inverted signal. Since the first and second signals have the same amplitude, the first output signal and the second output signal respectively correspond to diagonal lines of a rhombus formed by a vector representing the first signal and a vector representing the second signal. Accordingly, the phase difference between the first and second output signals of the &pgr;/2 phase shifter is accurately set to &pgr;/2 even when the phase difference between the first and second signals is not &pgr;/2.

    摘要翻译: 在π/ 2移相器中,基于输入信号产生第一和第二信号以及第一和第二反相信号。 第一信号和第二信号具有相同的幅度并且彼此异相,并且第一和第二反相信号分别对应于其相应相位反转的第一和第二信号。 通过将第一信号和第二信号相加来产生第一输出信号,并且通过将第一信号和第二反相信号相加来产生第二输出信号。 由于第一和第二信号具有相同的幅度,所以第一输出信号和第二输出信号分别对应于由表示第一信号的矢量和表示第二信号的矢量形成的菱形的对角线。 因此,即使当第一和第二信号之间的相位差不是pi / 2时,pi / 2移相器的第一和第二输出信号之间的相位差被精确地设置为pi / 2。

    Porous polyolefin film, process for producing same, and use thereof
    43.
    发明授权
    Porous polyolefin film, process for producing same, and use thereof 失效
    多孔聚烯烃膜,其制造方法及其用途

    公开(公告)号:US06767622B2

    公开(公告)日:2004-07-27

    申请号:US09926006

    申请日:2001-10-31

    IPC分类号: B32B300

    摘要: The present invention provides a porous polyolefin film abounding in air permeability and moisture permeability and having extremely high degree of light transmission and tear strength, a process for producing same and intended use thereof. This porous polyolefin film is produced, for example, by stretching an unstretched polyolefin film having a resin composition of 100 parts by weight of polyolefin, 50-150 parts by weight of an inorganic filler having a 50% median diameter of at least 2 &mgr;m but less than 7 &mgr;m measured according to the light-scattering method, and 2-20 parts by weight of a wax of polyolefin series in at least uniaxial direction at an area magnification of 1.1-1.5 times, and possesses physical properties of a water vapor transmission rate of at least 1000 g/m2·24 hrs., a light transmission of at least 65%, and a tear strength of at least 0.6 N.

    摘要翻译: 本发明提供一种多孔聚烯烃膜,其具有透气性和透湿性,并且具有极高的透光和撕裂强度,其制造方法及其用途。 该多孔聚烯烃膜例如通过拉伸具有100重量份聚烯烃的树脂组合物的未拉伸聚烯烃膜,50-150重量份的50%中值粒径至少为2μm的无机填料制成,但是 根据光散射法测定小于7μm,并且以至少单轴方向的2-20重量份的聚烯烃系列以1.1-1.5倍的面积放大倍数,并且具有水蒸汽透过率的物理性质 速率至少为1000g / m 2 .24小时,透光率至少为65%,撕裂强度至少为0.6N。

    High-frequency amplifier
    44.
    发明授权
    High-frequency amplifier 失效
    高频放大器

    公开(公告)号:US06750720B1

    公开(公告)日:2004-06-15

    申请号:US10149390

    申请日:2002-06-12

    IPC分类号: H03F304

    摘要: Between resistors 13, 14 and an NPN bipolar transistor 12 are interposed PNP bipolar transistors 21, 22 forming a current mirror 20 that uses a collector current of the NPN bipolar transistor 12 as a reference current, and determines a collector current of an NPN bipolar transistor 11. This makes possible to design a size ratio A of the PNP bipolar transistors 21, 22 so as to approximate a voltage drop &Dgr;Vb to a value close to zero, and to suppress the voltage drop &Dgr;Vb of the base voltage Vb accordingly to achieve a high power output and high efficiency when a high frequency input signal Pin increases and generates a base rectified current.

    摘要翻译: 在电阻器13,14和NPN双极晶体管12之间插入形成使用NPN双极晶体管12的集电极电流作为参考电流的电流镜20的PNP双极晶体管21,22,并且确定NPN双极晶体管的集电极电流 这使得可以设计PNP双极晶体管21,22的尺寸比A,以将电压降ΔVV近似为接近于零的值,并且相应地抑制基极电压Vb的电压降DeltaVb以实现 当高频输入信号Pin增加并产生基极整流电流时,高功率输出和高效率。

    Cathode ray tube and method of manufacturing conductive antireflection film
    45.
    发明授权
    Cathode ray tube and method of manufacturing conductive antireflection film 失效
    阴极射线管及制造导电抗反射膜的方法

    公开(公告)号:US06323592B1

    公开(公告)日:2001-11-27

    申请号:US09274206

    申请日:1999-03-23

    IPC分类号: H01J2992

    摘要: Disclosed is a conductive antireflection film comprising a laminate structure consisting of a conductive layer and an insulating covering layer covering the surface of the conductive layer and a conductive member connected at one end to the conductive layer and exposed at the other end to the outside. The conductive member is brought into contact with an electrolytic solution so as to control the state of the metal contained in the conductive layer, making it possible to prevent effectively an electromagnetic wave from leaking to the outside and to obtain a clear image of a high contrast.

    摘要翻译: 公开了一种导电性抗反射膜,其包括由导电层和覆盖导电层的表面的绝缘覆盖层构成的层压结构,以及导电构件,其一端连接到导电层并且在另一端暴露于外部。 导电部件与电解液接触,以控制包含在导电层中的金属的状态,使得可以有效地防止电磁波泄漏到外部并获得高对比度的清晰图像 。

    Method of using liquid feed for chicken containing glucose
    49.
    发明授权
    Method of using liquid feed for chicken containing glucose 失效
    使用含有葡萄糖的鸡的液体饲料的方法

    公开(公告)号:US5863572A

    公开(公告)日:1999-01-26

    申请号:US846227

    申请日:1997-04-28

    摘要: A liquid feed containing 1.about.10% by weight of monosaccharide alone or in combination with 0.1.about.1.0% by weight of sodium bicarbonate is fed to broiler chicks, layers or breeders in the summer season, thereby preventing reduction of body weight increase rate in broiler chicks as well as reduction of egg production yield in layers or breeders, and further preventing the mortality of broiler chicks, layers or breeders caused by heatstroke. In addition a liquid feed containing 1.about.10% by weight of monosaccharide alone or in combination with 0.1.about.1.0% by weight of sodium bicarbonate is fed to layers in a later stage at an ordinary temperature or at lower temperature thereby preventing production of extra large eggs which does not meet standard requirements.

    摘要翻译: 在夏季,将含有10%重量单糖或0.1%0.1%碳酸氢钠的单糖的液体饲料在夏季喂给肉鸡,鸡蛋或育种者,从而防止肉鸡体重增加率降低 小鸡以及降低鸡蛋产卵量,进一步防止中暑引起的肉鸡,鸡蛋,育种者的死亡率。 此外,在常温或较低温度下,将含有10%(重量)单糖单体或与0.1%(重量)碳酸氢钠组合的液体原料在后期进料到层中,从而防止产生特别大的 不符合标准要求的鸡蛋。

    Digital signal detection circuit
    50.
    发明授权
    Digital signal detection circuit 失效
    数字信号检测电路

    公开(公告)号:US5661709A

    公开(公告)日:1997-08-26

    申请号:US689130

    申请日:1996-07-30

    CPC分类号: G11B20/10009 G11B7/005

    摘要: A digital signal detection circuit includes a threshold value calculator calculating a threshold value from assumptive sampled values corresponding to various data patterns of a regenerated signal. The regenerated signal is obtained by regenerating data recorded on a recording medium by a regenerating head. The detection circuit also includes a Viterbi decoder carrying out Viterbi decoding of the regenerated signal with the threshold value determined by the threshold value calculator as a constant. The threshold value calculator variably controls the threshold value using a decoded output of the Viterbi decoder and a regenerated signal corresponding to the decoded output of the Viterbi decoder.

    摘要翻译: 数字信号检测电路包括阈值计算器,从对应于再生信号的各种数据模式的假设采样值计算阈值。 再生信号通过再生由再生头重新记录在记录介质上的数据而获得。 该检测电路还包括一个维特比解码器,其将由该阈值计算器确定的阈值的再生信号进行维特比译码,作为常数。 阈值计算器使用维特比解码器的解码输出和对应于维特比解码器的解码输出的再生信号来可变地控制阈值。