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    Sense threshold amplifier for high density memory
    1.
    发明授权
    Sense threshold amplifier for high density memory 失效
    用于高密度存储器的感应阈值放大器

    公开(公告)号：US3911293A

    公开(公告)日：1975-10-07

    申请号：US45283174

    申请日：1974-03-20

    Applicant: BURROUGHS CORP

    Inventor： SHAFER PHILIP E

    IPC: H03K5/02 ,  H03K5/20

    CPC classification number: H03K5/02

    Abstract: A sense threshold amplifier for use in high density memories, providing fast recovery from large noise signals and discrimination between analog sense signals to produce a logic level output. The sense amplifier comprises a pair of differentially driven emitter-followers for linearly amplifying the sense signals and for cutting off noise signals having amplitudes greater than the amplitude of the sense signals; a resistor-capacitor-diode network for coupling negative going sense signals representing a digital ONE and positive going sense signals representing a digital ZERO from the output of one of the emitter-followers to the base of an input transistor of a transistor amplifier, and for bypassing high level noise from the transistor amplifier to prevent false outputs; a resistorcapacitor network for coupling sense signals, equal in amplitude and opposite in polarity to the sense signals inputted at any given time to the resistor-capacitor-diode network, from the output of the other emitter-follower to the emitter of the input transistor of the amplifier, and a threshold detector, capacitively coupled to the output of an emitter-follower driven by the transistor amplifier, for outputting a pulse whenever the amplitude of the amplified sense signal exceeds a predetermined threshold level set by a resistor-diode network.

    Abstract translation: 用于高密度存储器的感测阈值放大器，提供从大噪声信号的快速恢复和模拟感测信号之间的区别，以产生逻辑电平输出。 感测放大器包括一对差分驱动的发射器 - 跟随器，用于线性放大感测信号并切断具有大于感测信号幅度的幅度的噪声信号; 一个电阻电容二极管网络，用于将表示数字1的负向感测信号和表示数字零点的正向感测信号从发射极跟随器之一的输出端耦合到晶体管放大器的输入晶体管的基极，并用于 绕过来自晶体管放大器的高电平噪声以防止误输出; 电阻 - 电容网络，用于将在任何给定时间输入的感测信号的振幅等于振幅和极性相反的感测信号耦合到电阻 - 电容 - 二极管网络，从另一个射极跟随器的输出到输入的发射极 放大器的晶体管和电容耦合到由晶体管放大器驱动的发射极跟随器的输出的阈值检测器，用于仅当放大的感测信号的幅度超过由电阻 - 二极管网络设置的预定阈值电平时输出脉冲 。

    Traveling main wall memory system apparatus
    2.
    发明授权
    Traveling main wall memory system apparatus 失效
    旅行主墙记忆体系装置

    公开(公告)号：US3582914A

    公开(公告)日：1971-06-01

    申请号：US3582914D

    申请日：1969-07-10

    Applicant: BURROUGHS CORP

    Inventor： SHAFER PHILIP E

    IPC: G11C11/14 ,  G11C19/08 ,  G11C5/04 ,  G11C7/02

    CPC classification number: G11C11/14 ,  G11C19/08

    Abstract: The present application discloses a memory system apparatus such as might be utilized to store binary digital information in a digital processing system. The apparatus includes means for utilizing the travel of a magnetic domain wall through a magnetic medium to thereby provide a memory replacement for revolving magnetic medium drums and discs as well as for rotating magnetic tapes. The present apparatus provides the basic capability of these earlier devices while eliminating all mechanical movement. Further, it accomplishes this feat with a memory system apparatus which has removable magnetic media.

    Traveling domain wall memory system apparatus
    3.
    发明授权
    Traveling domain wall memory system apparatus 失效
    旅行域内存系统设备

    公开(公告)号：US3566380A

    公开(公告)日：1971-02-23

    申请号：US3566380D

    申请日：1969-07-10

    Applicant: BURROUGHS CORP

    Inventor： SHAFER PHILIP E

    IPC: G11C8/00 ,  G11C19/08 ,  G11B5/00

    CPC classification number: G11C19/085 ,  G11C8/005

    Abstract: THE PRESENT APPLICATION DISCLOSES A MEMORY SYSTEM APPARATUS SUCH AS MIGHT BE UTILIZED TO STORE BINARY DIGITAL INFORMATION IN A DIGITAL PROCESSING SYSTEM. THE APPARATUS INCLUDES MEANS FOR UTILIZING THE TRAVEL OF A MAGNETIC DOMAIN WALL THROUGH A MAGNETIC MEDIUM TO THEREBY PROVIDE A MEMORY REPLACEMENT FOR REVOLVING MAGNETIC MEDIUM DRUMS AND DISKS AS WELL AS FOR ROTATING MAGNETIC TAPES. THE PRESENT APPARATUS PROVIDES THE BASIC CAPABILITY OF THESE EARLIER DEVICES WHILE ELIMINATING ALL MECHANICAL MOVEMENT. FURTHER, IT ACCOMPLISHES THIS FEAT WITH A

    MEMORY SYSTEM APPARATUS WHICH HAS REMOVABLE MAGNETIC MEDIA.

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