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    Method and apparatus for multichannel voting
    4.
    发明授权
    Method and apparatus for multichannel voting 失效
    多通道投票的方法和装置

    公开(公告)号：US3863056A

    公开(公告)日：1975-01-28

    申请号：US37498873

    申请日：1973-06-29

    Applicant: COULTER ELECTRONICS

    Inventor： KLEIN ROBERT IVAN

    IPC: G01N15/12 ,  G01N33/49 ,  G01R19/00 ,  G08C25/00 ,  H04L25/02 ,  G06F7/38 ,  G01N15/00 ,  G06G7/12

    CPC classification number: G01R19/0038 ,  G01N15/1227

    Abstract: Apparatus and method for voting out a malfunctioning channel in a system of channels carrying electric pulses. The pulses may be produced by particles passing through a sensing zone. The pulses are conducted through comparison and exclusion stages. A device for producing mean size values of the pulses is placed ahead of the comparison stage so that comparison and exclusion are performed on the basis of the mean size values of the pulses. In another embodiment, channels for counting the pulses are provided with count threshold circuits of the counting channels being positioned ahead of the devices for producing the mean size values of the pulses.

    Abstract translation: 用于表示携带电脉冲的通道系统中的故障信道的装置和方法。 脉冲可以由穿过感测区域的颗粒产生。 脉冲通过比较和排除阶段进行。 用于产生脉冲平均尺寸值的装置位于比较级之前，从而基于脉冲的平均尺寸值进行比较和排除。 在另一个实施例中，用于计数脉冲的通道设置有计数通道的计数阈值电路位于装置的前方，用于产生脉冲的平均尺寸值。

    CONTROL METHOD AND APPARATUS FOR A PARTICLE ANALYZER
    6.
    发明专利
    CONTROL METHOD AND APPARATUS FOR A PARTICLE ANALYZER 未知

    公开(公告)号：GB1254891A

    公开(公告)日：1971-11-24

    申请号：GB207869

    申请日：1969-01-14

    Applicant: COULTER ELECTRONICS

    Inventor： HOGG WALTER ROBERT ,  KLEIN ROBERT IVAN ,  HAYES CARL BURGESS

    IPC: G01N15/12 ,  G01N33/49

    Abstract: 1,254,891. Counting particles. COULTER ELECTRONICS Ltd. 14 Jan., 1969 [15 Jan. 1968], No. 2078/69. Heading G4D. [Also in Division G1N] Analysis of particle.bearing liquid, e.g. by Coulter apparatus, is improved by passing the liquid through parallel channels A, B, C and accumulating pulse counts separately, comparing the counts. so as to discard any count which differs markedly from the others, and averaging the counts which are not discarded. Pulse count accumulators 24, 26, 28 apply potentials increasing with count to comparator amplifiers 80, 90, 100 where each channel is compared with another to give a differential output to threshold devices 84, 94, 104. At the same time the outputs of each pair are added and computed to an allowable standard deviation in parabolic networks 124, 136, 148 which control the threshold devices. Assuming a trouble-free operation the line 64, Fig. 2, shows how voltage increases with time between allowable voltages 208, 210. If, however, one channel is blocked so that its voltage follows the line 66 then the average count voltage follows the line 214. When this voltage crosses the lower limit line 210 then the related threshold device operates. A voting logic network 88 comprises three AND gates, one of which then opens to open the switch 42, 44 or 46 corresponding to the blocked channel so that the averaging network 54 discards the unwanted count. In a modification (Fig. 6, not shown) the allowable deviation is computed from all the channels the counts in which are compared individually with the accumulated average. The threshold devices are therefore individual to the channels. A matrix (231) permits one defective channel to be discarded but if a second channel becomes defective the test is voided.

    8.
    发明专利
    未知

    公开(公告)号：DE2429204A1

    公开(公告)日：1975-01-16

    申请号：DE2429204

    申请日：1974-06-18

    Applicant: COULTER ELECTRONICS

    Inventor： KLEIN ROBERT IVAN

    IPC: G01N15/12 ,  G01N33/49 ,  G01R19/00 ,  G08C25/00 ,  H04L25/02 ,  H03K5/20 ,  G06M11/04

    Abstract: Apparatus and method for voting out a malfunctioning channel in a system of channels carrying electric pulses. The pulses may be produced by particles passing through a sensing zone. The pulses are conducted through comparison and exclusion stages. A device for producing mean size values of the pulses is placed ahead of the comparison stage so that comparison and exclusion are performed on the basis of the mean size values of the pulses. In another embodiment, channels for counting the pulses are provided with count threshold circuits of the counting channels being positioned ahead of the devices for producing the mean size values of the pulses.

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