Method and apparatus for automatic oscilloscope calibration
    21.
    发明授权
    Method and apparatus for automatic oscilloscope calibration 失效
    自动示波器校准的方法和装置

    公开(公告)号:US4704558A

    公开(公告)日:1987-11-03

    申请号:US803685

    申请日:1985-12-02

    CPC分类号: G01R35/002

    摘要: A beam detection apparatus for sensing the position of an electron beam within a cathode ray tube is disclosed. The apparatus includes a photodetector for optically detecting the intersections of the electron beam with a graticule line on the faceplate of the cathode ray tube. In a second embodiment, an electrically conductive pattern of reference markers is applied to the graticule for intercepting the beam and a detector is coupled to the conductive pattern for detecting the interception. Calibration circuitry is also included to generate input signals to deflection amplifiers coupled to the cathode ray tube and to evaluate detection signals generated by the beam coinciding with a graticule line. The calibration circuitry compares the input signals to the input signal value represented by the graticule line and adjusts the deflection amplifiers of the cathode ray tube accordingly to cause the beam to coincide with a graticule line bearing a predetermined relationship to the input signal deflecting the beam.

    摘要翻译: 公开了一种用于感测阴极射线管内电子束位置的光束检测装置。 该装置包括用于光学检测电子束与阴极射线管面板上的刻线的交点的光电检测器。 在第二实施例中,参考标记的导电图案被施加到刻度线用于截取光束,并且检测器耦合到导电图案以检测截取。 还包括校准电路以产生耦合到阴极射线管的偏转放大器的输入信号,并评估由与刻度线重合的光束产生的检测信号。 校准电路将输入信号与由刻度线表示的输入信号值进行比较,并相应地调节阴极射线管的偏转放大器,使得该波束与与偏转光束的输入信号具有预定关系的格线相一致。

    Reed switch construction
    22.
    发明授权
    Reed switch construction 失效
    REED开关结构

    公开(公告)号:US3961970A

    公开(公告)日:1976-06-08

    申请号:US570250

    申请日:1975-04-21

    申请人: David W. Morgan

    发明人: David W. Morgan

    CPC分类号: C03C4/082 C03C3/085

    摘要: A reed switch construction is disclosed in which the glass envelope has thermal expansion characteristics matching those of the reeds below the glass setting point, has relatively high electrical resistivity and low devitrification tendencies, and is, in percent by weight, composed essentially of 53-59% SiO.sub.2, 3-7% Al.sub.2 O.sub.3, 20-25% Na.sub.2 O + K.sub.2 O with the K.sub.2 O:Na.sub.2 O ratio being greater than 1:1 on a weight basis, 7-10% BaO, 2-6% ZnO and 1-5% Fe.sub.2 O.sub.3.

    Heat absorbing glasses
    23.
    发明授权
    Heat absorbing glasses 失效
    吸热眼镜

    公开(公告)号:US3944352A

    公开(公告)日:1976-03-16

    申请号:US480108

    申请日:1974-06-17

    申请人: David W. Morgan

    发明人: David W. Morgan

    摘要: This invention relates to heat absorbing glass compositions exhibiting strain points in excess of 560.degree.C. and transmissions to visible radiations suitable for optical applications. Such glasses consist essentially of Fe.sub.2 O.sub.3, Na.sub.2 O, Al.sub.2 O.sub.3, SiO.sub.2, and P.sub.2 O.sub.5, wherein NH.sub.4 H.sub.2 PO.sub.4 constitutes an essential ingredient of the batch.

    摘要翻译: 本发明涉及显示超过560℃的应变点的热吸收玻璃组合物,以及适用于光学应用的可见光辐射。 这种玻璃基本上由Fe 2 O 3,Na 2 O,Al 2 O 3,SiO 2和P 2 O 5组成,其中NH 4 H 2 PO 4构成该批次的基本成分。

    Signal processing system employing charge transfer devices
    26.
    发明授权
    Signal processing system employing charge transfer devices 失效
    信号处理系统采用电荷转移装置

    公开(公告)号:US4527117A

    公开(公告)日:1985-07-02

    申请号:US434976

    申请日:1982-10-18

    摘要: A signal processing system employing charge transfer devices for fast-in slow-out operation is disclosed. A push-pull input analog signal is applied to two charge transfer devices, and the clock pulses applied thereto are shifted one-half clock cycle with respect to one another. The output signals from the two charge transfer devices are differentially summed, and thereby providing cancellation of dark current and clock related noise in the charge transfer device, and doubled sample rate.

    摘要翻译: 公开了一种使用电荷转移装置进行快速减速操作的信号处理系统。 推挽输入模拟信号被施加到两个电荷转移装置,并且施加到其上的时钟脉冲相对于彼此移位两个半个时钟周期。 来自两个电荷转移装置的输出信号被差分相加,从而提供了电荷转移装置中的暗电流和时钟相关噪声的消除,以及倍增的采样率。

    Synchronization of databases using filters
    27.
    发明授权
    Synchronization of databases using filters 有权
    使用过滤器同步数据库

    公开(公告)号:US07209911B2

    公开(公告)日:2007-04-24

    申请号:US09776452

    申请日:2001-02-02

    IPC分类号: G06F17/30

    摘要: A computer program is provided for synchronizing at least a first and a second database. A plurality of records of the first database fitting a selected criterion are identified. At least one of the identified records of the first database is then synchronized with a record of the second database. On a computer display, a record selection criteria input region may be displayed for a user to input the selected criterion.

    摘要翻译: 提供了一种用于同步至少第一和第二数据库的计算机程序。 识别适合所选择的标准的第一数据库的多个记录。 然后,第一数据库的所识别的记录中的至少一个与第二数据库的记录同步。 在计算机显示器上,可以显示记录选择标准输入区域以供用户输入所选择的标准。

    Ultraviolet absorbing glasses
    30.
    发明授权
    Ultraviolet absorbing glasses 失效
    紫外吸收眼镜

    公开(公告)号:US5322819A

    公开(公告)日:1994-06-21

    申请号:US134003

    申请日:1993-10-12

    摘要: A non-photochromic R.sub.2 O-B.sub.2 O.sub.3 -SiO.sub.2 glass containing a cuprous or cuprous-cadmium halide crystal phase, having a sharp spectral cutoff at about 400 nm, the glass composition consisting essentially of, in cation percent, 35-73% SiO.sub.2, 15-45% B.sub.2 O.sub.3, 0-12% Al.sub.2 O.sub.3, the Al.sub.2 O.sub.3 being less than 10% when the SiO.sub.2 is over 55%, 0-12% Li.sub.2 O, 0-20% Na.sub.2 O, 0-12% K.sub.2 O, the Li.sub.2 O+Na.sub.2 O+K.sub.2 O being 4.75-20%, 0-5% CaO+BaO+SrO, 0.125-1.0% Cu.sub.2 O, 0-1% CdO, 0-5% ZrO.sub.2, 0-0.75% SnO.sub.2, 0-1% As.sub.2 O.sub.3 and/or Sb.sub.2 O.sub.3, the glass containing 0-1.75%. Cl, 0-1.0% Br, 0.25-2.0% Cl+Br and 0-2% F by weight, and having an R-value, calculated in mole percent of 0.15-0.45, the R-value not exceeding 0.30, except as the glass composition meets at least one condition selected from the group: up to 12 cation % Li.sub.2 O, less than 10 cation % Al.sub.2 O.sub.3, at least 0.3 cation % Cu.sub.2 O and 0.50-2.0% Cl+Br.Also, a method of making the non-photochromic glass having a sharp spectral cutoff.

    摘要翻译: 含有亚锡或卤化镉结晶相的非光致变色R2O-B2O3-SiO2玻璃,在约400nm处具有尖锐的光谱截止值,玻璃组成基本上由阳离子%35-73%SiO 2, 45%B2O3,0-12%Al2O3,当SiO 2超过55%时,Al2O3小于10%,Li2O,0-20%Na2O,0-12%K2O,Li2O + Na2O + K2O为 4.75-20%,0-5%CaO + BaO + SrO,0.125-1.0%Cu2O,0-1%CdO,0-5%ZrO2,0-0.75%SnO2,0-1%As2O3和/或Sb2O3, 含0-1.75%的玻璃。 Cl,0-1.0%Br,0.25-2.0%Cl + Br和0-2%F,并且R值以0.15-0.45的摩尔百分比计算,R值不超过0.30,除了作为 玻璃组合物满足至少一种选自以下的条件:至多12阳离子%Li 2 O,小于10阳离子%Al 2 O 3,至少0.3阳离子%Cu 2 O和0.50-2.0%Cl + Br。 另外,使非光致变色玻璃具有尖锐的光谱截止的方法。