Record carrier and method of labelling an article of value
    1.
    发明授权
    Record carrier and method of labelling an article of value 失效
    记录载体和标注物品的方法

    公开(公告)号:US06467691B1

    公开(公告)日:2002-10-22

    申请号:US09308577

    申请日:1999-09-22

    IPC分类号: G06K1900

    CPC分类号: G06K19/12

    摘要: A record carrier has a secure first data storage device storing a plurality of different identification numbers in a sequence and a further data storage device storing a further number. The identification numbers are successive integers, and the further number is the least significant digit of one of the successive integers. The secure data storage device preferably includes permanently structured magnetic tape. The further number is derivable in a predetermined way from only one of the identification numbers, thus identifying uniquely which one of the identification numbers is characteristic of the record carrier.

    摘要翻译: 记录载体具有在序列中存储多个不同识别号码的安全第一数据存储装置和存储另外的号码的另外的数据存储装置。 标识号是连续的整数,而另外的数字是连续整数之一的最低有效数字。 安全数据存储装置优选地包括永久结构的磁带。 只有一个识别号可以以预定的方式导出另外的号码,从而唯一地识别识别号码中哪一个是记录载体的特征。

    Method of identifying a data carrier
    2.
    发明授权
    Method of identifying a data carrier 有权
    识别数据载体的方法

    公开(公告)号:US06179211B2

    公开(公告)日:2001-01-30

    申请号:US09117336

    申请日:1998-12-08

    IPC分类号: G06K1906

    CPC分类号: G06K19/12

    摘要: A method of identifying a data carrier such as a credit card, benefit card, access control card, identity card or stored value card, carrying data in the form of a plurality of rational number in a sequence, successive numbers having a marker between them, comprises a) measuring the distance from a fixed point on the data carrier to a given part of a marker, b) dividing this distance by the distance between corresponding give parts of successive markers, thereby obtaining a rational number, and c) subtracting this rational number from the number in the sequence adjacent the marker in a given direction, thereby obtaining a further rational number which is capable of identifying the data carrier uniquely.

    摘要翻译: 识别以序列中多个有理数字形式携带数据的数据载体(诸如信用卡,利益卡,访问控制卡,身份证或存储卡)的方法,在它们之间具有标记的连续数字, 包括a)测量从数据载体上的固定点到标记的给定部分的距离,b)将该距离除以连续标记的相应给出部分之间的距离,从而获得有理数,并且c)减去该理性 从与给定方向相邻的序列中的序列中的数字编号,从而获得能够唯一地识别数据载体的另一有理数。

    Apparatus for coupling power into a body of gas
    3.
    发明授权
    Apparatus for coupling power into a body of gas 失效
    用于将动力耦合到气体中的装置

    公开(公告)号:US06320316B1

    公开(公告)日:2001-11-20

    申请号:US09700413

    申请日:2001-01-19

    IPC分类号: H01J6100

    摘要: Apparatus for coupling power into a body of gas by induction to provide a gas discharge, comprises a source of a/c power (3) coupled to a circuit arrangement having an inductor comprising two coils (1, 2), each constituted by a respective elongate conductor, the conductors each having one end coupled to the circuit arrangement at opposite respective sides of the inductor, and having the other end at a floating potential. The mutual capacitance between the coils, together with the inductance of the inductor as a whole, constitute a balanced self-resonant circuit having a resonant frequency which is greater than 1 MHz and less than 100 MHz. This arrangement can reduce temperature variations in the resonant frequency and can reduce unwanted r.f. emissions.

    摘要翻译: 用于通过感应将动力耦合到气体中以提供气体放电的装置包括耦合到具有包括两个线圈(1,2)的电感器的电路装置的一个/ c电源(3)的源,每个线圈由相应的 细长导体,每个导体的一端在电感器的相对的相对侧耦合到电路装置,并且另一端处于浮动电位。 线圈之间的互电容以及整个电感器的电感构成谐振频率大于1MHz且小于100MHz的平衡自谐振电路。 这种布置可以降低谐振频率的温度变化并且可以减少不期望的r.f。 排放。

    Electrochemical sensing circuits
    4.
    发明授权
    Electrochemical sensing circuits 有权
    电化学传感电路

    公开(公告)号:US06277255B1

    公开(公告)日:2001-08-21

    申请号:US09403522

    申请日:1999-12-17

    IPC分类号: G01N2726

    CPC分类号: G01N27/4045

    摘要: An electrochemical cell sensing circuit for an electrochemical cell having a working electrode, a counter electrode and a reference electrode in an electrolyte, which in use, when a gas to be analysed is introduced into the cell, generating a current between the counter electrode and the working electrode, and a potential at a position in the electrolyte is sensed by the reference electrode. The circuit comprising power supply means (12, 13, 14, 15, 16, R4, R5, D1) for applying an offset voltage to the counter electrode (c) relative to the working electrode (w), an amplifier means (A3, A5) for monitoring the voltage difference between the reference electrode (r) and the working electrode (w) and operable in use to feed back a current to the working electrode (w) through a feed back loop, and thereby tend to maintain the working electrode (w) at substantially the same potential as the reference electrode (r), the circuit includes measuring means (15, 16, 17, S1, R3, C2, A3) for measuring the current feed back by the amplifier (A2, A3) to the working electrode (w) as a measure of the cell current flowing between the working electrode (w) and the counter electrode (c).

    摘要翻译: 一种用于电化学电池的电化学电池感测电路,其具有电解质中的工作电极,对电极和参比电极,当将待分析的气体引入电池时,在使用中,在对电极和对电极之间产生电流 工作电极,并且电极中的位置处的电位被参考电极感测。 该电路包括用于相对于工作电极(w)向对置电极(c)施加偏移电压的电源装置(12,13,14,15,16,R4,R5,D1),放大器装置(A3, A5),用于监视参考电极(r)和工作电极(w)之间的电压差,并且在使用中可操作以通过反馈回路将电流反馈到工作电极(w),从而倾向于保持工作 电极(w)处于与参考电极(r)基本相同的电位,电路包括用于测量放大器(A2,A3)的电流反馈的测量装置(15,16,17,S1,R3,C2,A3) )作为在工作电极(w)和对电极(c)之间流动的电池电流的量度的工作电极(w)。

    Drive circuit for ferroelectric liquid crystal shutter
    5.
    发明授权
    Drive circuit for ferroelectric liquid crystal shutter 失效
    铁电液晶快门驱动电路

    公开(公告)号:US06175350B1

    公开(公告)日:2001-01-16

    申请号:US08894635

    申请日:1997-08-25

    IPC分类号: G09G336

    摘要: In order to overcome problems with residual d.c. offset, and input signals with arbitrary timing, a drive circuit for a ferroelectric liquid crystal device includes a counter arranged for counting between first and second predetermined values in response to an input signal. The counter is designed so as to count in a first direction in response to a positive edge of the input signal and in a second direction in response to a negative edge of the input signal. Gating and latching circuits are responsive to the counting of the counter and the direction of count so as to provide appropriate positive or negative output voltage pulses for driving a ferroelectric liquid crystal device. An output stage comprising a bridge circuit is coupled via a step up transformer to the display device.

    摘要翻译: 为了克服残留d.c.的问题。 偏移和输入信号,用于铁电液晶装置的驱动电路包括响应于输入信号而在第一和第二预定值之间进行计数的计数器。 计数器被设计为响应于输入信号的上升沿而在第一方向上计数,并响应于输入信号的下降沿而在第二方向上计数。 选通和闭锁电路响应于计数器的计数和计数方向,以便提供用于驱动铁电液晶器件的适当的正或负输出电压脉冲。 包括桥接电路的输出级通过升压变压器耦合到显示装置。

    Device for reading an elongate magnetic data carrier
    7.
    发明授权
    Device for reading an elongate magnetic data carrier 失效
    读取细长磁性数据载体的装置

    公开(公告)号:US06600313B1

    公开(公告)日:2003-07-29

    申请号:US10088802

    申请日:2002-07-01

    IPC分类号: G06K708

    摘要: A device for reading an elongate magnetic data carrier attached to or embedded in an article, having an active read head adapted to have a lateral extent greater than the width of the data carrier, preferably four times greater, such that the magnetic field produced by the read head results in a signal from the data carrier which has an amplitude which varies by less than 50% for head to data carrier spacings of from 0 to 60 microns. A wide read head can also make the reading of data more reproducible when reading narrow tracks using swipe readers, where precise alignment is difficult to achieve.

    摘要翻译: 用于读取附接到或嵌入在物品中的细长磁性数据载体的装置,其具有适于具有大于数据载体的宽度的横向范围的有效读取头,优选地为四倍以上, 读取头导致来自数据载体的信号,其具有从0到60微米的头对数据载体间隔变化小于50%的幅度。 当使用滑动读取器读取窄轨迹时,宽的读取头也可以使数据的读取更加可重现,这样难以实现精确的对准。

    Apparatus for reading permanently structured magnetic records
    8.
    发明授权
    Apparatus for reading permanently structured magnetic records 失效
    用于读取永久性结构磁记录的装置

    公开(公告)号:US06523747B1

    公开(公告)日:2003-02-25

    申请号:US09403528

    申请日:2000-01-27

    IPC分类号: G06K708

    CPC分类号: G06K7/087 G06K19/12

    摘要: An apparatus for reading permanently structured magnetic records having a first coercivity, comprising an oscillator having an inductive read head that is coupled to a circuit arrangement. At least one side of the read head sees an impedance that is larger than the impedance of the read head over the range of frequencies of interest, such that the read head provides an electrical signal in response to magnetic records having a second coercivity that is higher than the first coercivity (typically 2,000 to 5,000 oersteds). The electrical signal is derived from the voltage across the read head, which is preferably detected by a differential integrator that subtracts the voltages on either side of the read head to give a voltage difference, and integrates this difference over time.

    摘要翻译: 一种用于读取具有第一矫顽力的永久结构的磁记录的装置,包括具有耦合到电路装置的感应读头的振荡器。 读取头的至少一侧看到在感兴趣的频率范围内大于读取头的阻抗的阻抗,使得读取头响应于具有更高的第二矫顽力的磁记录提供电信号 比第一矫顽力(通常为2,000至5,000奥斯特)。 电信号源自读头的电压,优选地由差分积分器检测,该差分积分器减去读头的任一侧上的电压以产生电压差,并且随时间积分该差值。

    Glow discharge apparatus having direct production of visible light from neon or xenon
    9.
    发明授权
    Glow discharge apparatus having direct production of visible light from neon or xenon 失效
    辉光放电装置可直接从氖或氙产生可见光

    公开(公告)号:US06242868B1

    公开(公告)日:2001-06-05

    申请号:US09202353

    申请日:1999-03-25

    IPC分类号: H05B3700

    摘要: Glow discharge apparatus comprises a light-transmissive body (101) defining a cavity (102) containing neon or xenon gas. The glow discharge is powered by one or more electrodes (103) external to the cavity. The apparatus also comprises a secondary light source (104) for illuminating the neon gas to provide electrons in the cavity, thereby assisting discharge initiation in intermittent use, for example when controlled by a pulse time modulation drive circuit (107).

    摘要翻译: 辉光放电装置包括限定包含氖气或氙气的空腔(102)的透光体(101)。 辉光放电由腔外部的一个或多个电极(103)供电。 该装置还包括用于照亮氖气以在空腔中提供电子的辅助光源(104),从而例如当由脉冲时间调制驱动电路(107)控制时,辅助间歇使用中的放电启动。

    Composite image arrangement
    10.
    发明授权
    Composite image arrangement 失效
    复合图像排列

    公开(公告)号:US5851032A

    公开(公告)日:1998-12-22

    申请号:US619551

    申请日:1996-03-27

    IPC分类号: B41M3/14 B42D15/00 G09F19/14

    CPC分类号: G09F19/14 B41M3/148 B42D25/29

    摘要: This invention relates to a composite image arrangement, comprising a pattern and a further pattern, substantially parallel to the first pattern, each comprising a plurality of visually contrasting regions, the patterns being in fixed positions relative one to the other on either side of a light transmissive lamina.

    摘要翻译: PCT No.PCT / GB94 / 02150 Sec。 371日期:1996年3月27日 102(e)1996年3月27日PCT 1994年10月4日PCT PCT。 第WO95 / 09731号公报 日期1995年04月13日本发明涉及一种合成图像布置,其包括基本上平行于第一图案的图案和另一图案,每个图案包括多个视觉对比区域,所述图案彼此相对地固定在 透光层的任一侧。