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    Circuit arrangement for activating an electric circuit by means of an instruction word
    43.
    发明授权
    Circuit arrangement for activating an electric circuit by means of an instruction word 失效
    用于通过指令字激活电路的电路装置

    公开(公告)号：US3405395A

    公开(公告)日：1968-10-08

    申请号：US54214766

    申请日：1966-04-12

    Applicant: ERICSSON TELEFON AB L M

    Inventor： SVEN-ERIK WALLIN

    IPC: G06F7/02 ,  G06F9/30 ,  G06F9/40

    CPC classification number: G06F9/30021 ,  G06F7/02 ,  G06F9/4425 ,  Y10S707/99933

    Abstract: 1,102,483. Instruction decoders. TELEFONAKTIEBOLAGET L. M. ERICSSON. 26 April, 1966 [27 April, 1965], No. 18320/66. Headings G4A and G4H. In an instruction word decoder all instruction words commencing with the same character, e.g. the letter T have a different character in a preselected word position, e.g. the sixth position, so that when the first character of an instruction word stored in a buffer BR is read out the character in the preselected position is consequentially fed to a comparator JK for comparison with all possible characters in that position. In the embodiment described the first character in the buffer register entered from a keyboard TB is read out to a diode matrix AK1 controlling a register REG3 and a magnetic core memory NT. The coded outputs from the memory MT which represent the address of the portion of a memory MA associated with the first character T of the input word are fed via a register REG1 and an address translator AK2 to cause read out of the first column of cores in the portion TF of the memory MA. This causes the character in the sixth position of the input word to be fed to a register TR. Clock pulses applied to the register REG1 each modify the address stored in it by one binary unit so that the remaining columns in the memory TL are sequentially fed to the comparator JK until coincidence is reached. An output pulse from the comparator is then applied to AND gates A01 . . . A0n, . . . T01 . . . TOn together with a pulse from register REG3 to the group of gates associated with the letter T and a pulse is also applied from a register REG2 indicating which column of the memory TF was being read out so that only one of the output leads ABS . . . TAS is energized. The apparatus may be used for controlling telephone systems or computers.

    Abstract translation: 1,102,483。 指令解码器 TELEFONAKTIEBOLAGET L. M. ERICSSON。 1966年4月26日[1965年4月27日]，第18320/66号。 标题G4A和G4H。 在指令字解码器中，以相同字符开始的所有指令字，例如 字母T在预选字位置具有不同的字符，例如 第六位置，使得当存储在缓冲器BR中的指令字的第一个字符被读出时，预选位置中的字符被随机地馈送到比较器JK以与该位置中的所有可能字符进行比较。 在所描述的实施例中，从键盘TB输入的缓冲寄存器中的第一个字符被读出到控制寄存器REG3和磁芯存储器NT的二极管矩阵AK1。 表示与输入字的第一字符T相关联的存储器MA的部分的地址的存储器MT的编码输出经由寄存器REG1和地址转换器AK2馈送以使得读出第一列的核 存储器MA的部分TF。 这使得输入字的第六位置的字符被馈送到寄存器TR。 施加到寄存器REG1的时钟脉冲各自修改存储在其中的一个二进制单元的地址，使得存储器TL中的剩余列被顺序馈送到比较器JK，直到达到一致。 然后将来自比较器的输出脉冲施加到与门A01。 。 。 A0n，。 。 。 T01。 。 。 TOn与从寄存器REG3到与字母T相关联的门组的脉冲一起从寄存器REG2施加一个脉冲，该寄存器REG2指示正在读出存储器TF的哪一列，使得只有一个输出引线ABS。 。 。 TAS通电。 该装置可以用于控制电话系统或计算机。

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