Data processing method and apparatus using occupancy indications to reserve storage space for a stack

    公开(公告)号:US3878513A

    公开(公告)日:1975-04-15

    申请号:US22443572

    申请日:1972-02-08

    申请人: BURROUGHS CORP

    发明人: WERNER JOHN R

    摘要: While executing program code arranged in nested blocks, a data processing system accumulates words in a stack storage means comprising a pair of registers coupled to an arithmetic unit and supplying thereto operands for processing; a plurality of memory locations in a relatively large-capacity, low-speed memory; and a relatively small-capacity, high-speed memory having a plurality of addressable extension locations. Register means are set to associate the extension locations in one-to-one correspondence with a group of memory locations so as to define corresponding pairs of locations. Each pair is reserved for storing a different stack word and has four occupancy conditions. Before the actual accumulation of the stack word for which the pair is reserved, the pair is in a first condition wherein both locations of the pair are unoccupied. After actual accumulation, the pair is either in a second condition wherein only the extension is occupied, or in a third condition wherein only the memory location is occupied, or in a fourth condition wherein both locations are occupied. Preferably each extension location has occupied and copy indicating storage cells having four states each indicating one of the four possible conditions. Stack words forming the record of execution of a first program block are initially accumulated in the extension locations. When a second program block nested within the first program block is entered the record of execution of the first block is transferred to the presently corresponding memory locations and then the associating register means is set to associate the extension registers with a different group of memory locations so that the extension locations are available to store stack words for the second block. The stack includes a linked list of control words containing stack depth information indicating the number of stack words accumulated in executing each block. Upon a transfer of control from the second block back to the first block the stack depth information is used to set the associating register means so that the required number of extension locations are again reserved for storing the previously accumulated record of execution of the first block. Instead of indiscriminately transferring the record of execution of the first block back to such reserved extension locations, the occupancy and copy indicating storage cells for each such reserved extension location are set to indicate that only the respective memory location is occupied. Thus upon a further transfer of control to another block, the occupancy and copy indicating storage cells provide information used to eliminate unnecessary transfers of words to memory locations already storing the proper words.

    Actuated spring mechanism for positioning magnetic heads
    23.
    发明授权
    Actuated spring mechanism for positioning magnetic heads 失效
    用于定位磁头的驱动弹簧机构

    公开(公告)号:US3864749A

    公开(公告)日:1975-02-04

    申请号:US39647873

    申请日:1973-09-12

    申请人: BURROUGHS CORP

    IPC分类号: G11B5/54 G11B5/60

    CPC分类号: G11B5/54 G11B5/6005

    摘要: A spring actuated magnetic head positioning system mounted upon an arm extending over the surface of a rotatable magnetic disk is disclosed for advancing the magnetic head into its operating position adjacent the magnetic surface. The spring positioning mechanism is contained within a housing, one end of which resiliently supports the magnetic head. The other end of the housing supports a remotely controlled actuator for actuating the spring positioning mechanism. The spring positioning mechanism is preloaded and held within a fixed and predetermined compressed length when retracted. In its operating position, the spring is translated toward the magnetic disk and further compressed to provide the force necessary to hold the magnetic head in position against the opposing force produced by the air pressure existing between the magnetic head and the rotating magnetic disk.

    摘要翻译: 公开了一种弹簧驱动的磁头定位系统,其安装在延伸在可旋转磁盘表面上的臂上,用于将磁头推进到与磁性表面相邻的操作位置。 弹簧定位机构容纳在壳体内,其一端弹性支撑磁头。 壳体的另一端支撑用于致动弹簧定位机构的远程控制致动器。 弹簧定位机构在收回时被预加载并保持在固定和预定的压缩长度内。 在其操作位置,弹簧朝向磁盘转动并进一步压缩以提供将磁头保持在适当位置的力,以抵抗由磁头和旋转磁盘之间存在的空气压力产生的相反的力。

    Dot matrix display panel having a plurality of display registers
    24.
    发明授权
    Dot matrix display panel having a plurality of display registers 失效
    具有多个显示寄存器的DOT矩阵显示面板

    公开(公告)号:US3863088A

    公开(公告)日:1975-01-28

    申请号:US43653574

    申请日:1974-01-25

    申请人: BURROUGHS CORP

    IPC分类号: H01J17/49 H01J61/54

    CPC分类号: H01J17/494

    摘要: A display panel includes a plurality of dot-like display cells arrayed in rows and columns, with electrodes coupled to the cells in such a way that a plurality of rows or registers of characters can be displayed. Row and column electrodes are coupled to the rows and columns of cells to provide, in each register, a plurality of matrices of cells, each of which can be used to form a character. The panel is operated by selectively firing cells column-by-column, and, to facilitate this operation, the panel includes a column of reset cells positioned adjacent to the first column of cells in the panel and one or more keep-alive cells adjacent to the reset cells. The keep-alive cells are formed by separate anode electrodes and a common cathode electrode which is so constructed and positioned that it does not affect the other electrodes of the panel.

    摘要翻译: 显示面板包括排列成行和列的多个点状显示单元,电极以与多个行或字符寄存器一起显示的方式耦合到单元。 行和列电极耦合到单元的行和列,以在每个寄存器中提供多个单元格矩阵,每个单元可以用于形成字符。 面板通过逐列选择性地烧制单元来操作,并且为了便于该操作,面板包括与面板中的第一列单元相邻定位的一列复位单元,以及与该单元相邻的一个或多个保持活体单元 复位单元。 保持电池由独立的阳极电极和共同的阴极电极形成,该阴极电极被构造和定位成不影响面板的其它电极。

    Automatic cash dispenser and system and method therefor
    25.
    发明授权
    Automatic cash dispenser and system and method therefor 失效
    自动提款机及其系统及方法

    公开(公告)号:US3862716A

    公开(公告)日:1975-01-28

    申请号:US43339974

    申请日:1974-01-14

    申请人: BURROUGHS CORP

    摘要: An automatic cash dispenser in which the security feature of a system is enhanced by providing the bank or other institution controlling the operation of the machine with the ability to periodically modify the security features of the machine. This flexibility in the security system for the cash dispensing machine includes the provision of the cryptographic input of the cash dispensing system which may be changed by the bank either periodically or as described.

    摘要翻译: 一种自动提款机,其中通过向控制机器操作的银行或其他机构提供定期修改机器的安全特征的能力来增强系统的安全特征。 现金分发机的安全系统中的这种灵活性包括提供可由银行周期性地或如所描述的现金分配系统的密码输入。

    Sample peak and hold with dual current source
    26.
    发明授权
    Sample peak and hold with dual current source 失效
    样品峰值并保持双电流源

    公开(公告)号:US3862437A

    公开(公告)日:1975-01-21

    申请号:US39388673

    申请日:1973-09-04

    申请人: BURROUGHS CORP

    发明人: ROSSELL ALLEN J

    IPC分类号: G01R19/04 G11C27/02 H03K17/00

    CPC分类号: G11C27/026 G01R19/04

    摘要: A sample peak and hold circuit comprising a dual current source biased by two comparator-driven transistor switches to initially provide a high charging current to a storage capacitor until the capacitor charges to a predetermined percentage of the input signal peak voltage; and then to complete the charging of the capacitor with a lower charging current, until the capacitor charge reaches a magnitude proportional to the input signal peak voltage amplitude. Another transistor switching network is used to discharge the capacitor and an emitter-follower in the output stage prevents premature discharging of the capacitor. Digital logic drives the transistor switches in providing the necessary control functions for charging or discharging the capacitor, or for placing the circuit in a holding condition, as is required within and without successive sampling periods.

    摘要翻译: 一种采样峰值保持电路,包括由两个比较器驱动晶体管开关偏置的双电流源,以初始地向存储电容器提供高充电电流,直到电容器充电到输入信号峰值电压的预定百分比为止; 然后以较低的充电电流完成对电容器的充电,直到电容器电荷达到与输入信号峰值电压幅度成正比的幅度。 另一晶体管开关网络用于放电电容器,输出级中的发射极跟随器可防止电容器过早放电。 数字逻辑驱动晶体管开关提供用于对电容器进行充电或放电所必需的控制功能,或者用于将电路置于保持状态下,如同在连续采样周期内和不连续采样周期所要求的。

    Form feed device with variable split
    27.
    发明授权
    Form feed device with variable split 失效
    具有可变分割的形式进给装置

    公开(公告)号:US3850355A

    公开(公告)日:1974-11-26

    申请号:US38609473

    申请日:1973-08-06

    申请人: BURROUGHS CORP

    发明人: DOWNIE J PRAKASH V

    摘要: Form feed device for bookkeeping machines and the like which allows the spacing of two forms of equal or of different width which are positioned side by side, with the spacing of both forms occurring simultaneously or of either one of the two forms alone, and with provisions for making the split variable by the operator when form sizes are to be changed.

    摘要翻译: 用于记账机等的成型进给装置,其允许并排定位的两种形式的相同或不同宽度的间隔,两种形式的间距同时发生,或者两种形式中的任一种单独发生,并且具有规定 用于在要更改表单大小时由操作员创建拆分变量。

    Multiple position display panel having spurious glow suppressor
    28.
    发明授权
    Multiple position display panel having spurious glow suppressor 失效
    多个位置显示面板有SPURIOUS GLOW SUPPRESSOR

    公开(公告)号:US3849694A

    公开(公告)日:1974-11-19

    申请号:US43461474

    申请日:1974-01-18

    申请人: BURROUGHS CORP

    发明人: HARVEY E LEVINE J

    IPC分类号: H01J17/49 H01J61/66

    CPC分类号: H01J17/491

    摘要: Display devices adapted to display one or more characters sideby-side in one or more rows and including several groups of display cathode segments positioned in a row, with corresponding segments in each group connected in common, an anode electrode associated with each group of the display segments, and an auxiliary electrode partially surrounding and electrically isolating each group of display segments. The cathode segments, together with an anode, can be selectively energized to display a character at any desired cathode group or position. The auxiliary electrode can be energized to inhibit electrical discharge between the display cathode segments and any other than the associated anode.

    摘要翻译: 显示装置,其适于在一行或多行中并排显示一个或多个字符,并且包括定位在一行中的几组显示阴极段,每组中的对应段共同连接,与每组相关联的阳极电极 显示部分和辅助电极部分地围绕并电隔离每组显示部分。 阴极段与阳极一起可以选择性地通电以在任何所需的阴极组或位置显示字符。 可以对辅助电极进行通电,以阻止显示阴极段与相关阳极之间的放电。

    Multiple memory unit controller
    29.
    发明授权
    Multiple memory unit controller 失效
    多个存储单元控制器

    公开(公告)号:US3840864A

    公开(公告)日:1974-10-08

    申请号:US43322774

    申请日:1974-01-14

    申请人: BURROUGHS CORP

    发明人: CHANG H AGGARWAL S

    IPC分类号: G06F12/06 G06F13/00

    CPC分类号: G06F12/06

    摘要: A memory control unit for determining the actual physical location of an instruction address in one of a plurality of memory units in a digital computer wherein the instruction address and the memory addresses are both in a block, track and word hierarchy, where the instruction address may not correspond to the memory address due to differences in the number of available blocks for recording program instructions from memory unit to memory unit, utilizing: a block address register for storing the block portion of the instruction address; a shift register associated with each memory unit wherein the number of available blocks for each memory unit is stored; a flip flop for bit by bit comparison of the contents of the block address register with the contents of selected shift registers; a counter for shifting from one to another of the shift registers when the contents of the block register exceeds the contents of the selected shift register, and an adder for decrementing the contents of the block address register by an amount equal to the number contained in the previously selected shift register. The memory control unit also includes another flip flop responding to the bit by bit serial comparison of the block address register and the selected shift register for detecting whether the instruction address starts in the last available block in a memory unit, and a circuit for evaluating the track and word portion of the address of each word of the instruction being executed for determining when the last word of an instruction has been executed by the computer.

    Electro-mechanical printer
    30.
    发明授权
    Electro-mechanical printer 失效
    电子机械打印机

    公开(公告)号:US3839957A

    公开(公告)日:1974-10-08

    申请号:US36959073

    申请日:1973-06-13

    申请人: BURROUGHS CORP

    发明人: DELEUZE B RAGOT J

    IPC分类号: G06C11/04 B41J7/94

    CPC分类号: G06C11/04

    摘要: A printing apparatus is provided comprising a plurality of laterally disposed type bars vertically arranged and translatably mounted on a rockable type-bar carrying frame in front of a platen. The type bars are parallel to each other and spaced apart along the length of the platen. A cyclically controlled, driven splined member is laterally disposed and transversely positioned in front of the rockable type-bar carrying frame and below the platen, spanning all of the type bars. On the opposite side of the type bars is a plurality of like number of electrically controlled armature levers, variably timed, for coupling selected ones of the type bars with the splined member thereby to raise the selected type bars into a printing position, following which a pair of cams is operable to tilt the rockable type-bar carrying frame toward the platen to cause the selected type bars to strike against printable material positioned therebetween.

    摘要翻译: 提供一种打印装置,其包括垂直布置的多个横向设置的类型的条,并且可平移地安装在压板前面的可摇动的类型的承载框架上。 类型的杆彼此平行并且沿着压板的长度间隔开。 循环控制的驱动花键构件横向设置并横向地定位在可摇动的类型 - 承载框架的前面并且在压板下方跨越所有类型的杆。 在类型条的相对侧上是多个相同数量的电控电枢杆,可变定时,用于将所选类型的杆与花键构件联接,从而将所选择的类型杆升高到打印位置,随后将 一对凸轮可操作以将可摇动型杆承载框架朝向台板倾斜,以使所选择的类型的杆撞击位于其间的可打印材料。