Cache memory with hit predictive logic
    111.
    发明公开
    Cache memory with hit predictive logic 失效
    具有预测逻辑的高速缓存存储器

    公开(公告)号:EP0283891A3

    公开(公告)日:1990-07-18

    申请号:EP88103991.1

    申请日:1988-03-14

    发明人: Fiacconi, Claudio

    IPC分类号: G06F12/08

    CPC分类号: G06F12/0862 G06F2212/6026

    摘要: A cache memory, when receiving an operand read request and the operand address from a central processing unit, responds with a signal indicative of operand available in the cache, before having checked if such operand is effectively in the cache, if in a previous operand request the effective operand presence in the cache had occurred, or starts a memory read operation, before having checked if such operand is effectively not present in the cache, if in a previous operand request, the effective absence of the operand from the cache has occurred. The decision among the two alternatives is determined by a state logic which stores the previously occurred HIT condition (requested operand present in the cache) or MISS condition (requested operand absent from the cache) and the state of which is updated in the course of a current read operation if a predicted HIT is followed by an effective MISS or if a predicted MISS is followed by an effective HIT.

    Apparatus and method for clogging prevention in paper feeding devices of computer printers
    112.
    发明公开
    Apparatus and method for clogging prevention in paper feeding devices of computer printers 失效
    用于防止在计算机的打印机的文档供给的干扰的方法和装置。

    公开(公告)号:EP0372318A1

    公开(公告)日:1990-06-13

    申请号:EP89121741.6

    申请日:1989-11-24

    发明人: Fare', Carlo

    IPC分类号: B41J15/18 B41J11/48

    CPC分类号: B41J11/48 B41J15/18

    摘要: Apparatus and method for clogging prevention in computer printers where a tractor pair (2) pushes a multiple copy continuous form (11) towards a printing position along a path which causes a relative offsetting of the module copies, comprising counting means (26) for detecting that the form (11) has been fed forward of a first predetermined amount and control means responsive to such detection for controlling the tractor pair (2),first in order to feed back the form of another predetermined amount, lesser than the first amount, then in order to feed forward again the form of the same other amount, the control means then resetting the counting means.

    摘要翻译: 装置和用于计算机的打印机堵塞防止方法,其中一台拖拉机一对(2)推压多拷贝连续形式(11)朝向沿路径的打印位置,这导致相对于模块拷贝的偏移,其特征在于计数装置(26),用于检测 DASS模具形式(11)已被前馈的第一预定量和控制装置,响应于搜索检测用于控制所述牵引车一对(2)中,首先为了反馈另一预定量的形式,比第一量较小, 然后为了再次前馈相同量的其它的形式中,控制装置则重新设置计数装置。

    Multiprocessor system having distributed shared resources and deadlock prevention
    113.
    发明公开
    Multiprocessor system having distributed shared resources and deadlock prevention 失效
    Multiprozessorsystem mit verteilten gemeinsamen Betriebsmitteln und mit Verklemmungsverhinderung。

    公开(公告)号:EP0369264A2

    公开(公告)日:1990-05-23

    申请号:EP89120432.3

    申请日:1989-11-04

    IPC分类号: G06F15/16 G06F13/36

    摘要: In a data processing multiprocessor system having distributed shared resources where each system processor (7) is provided with at least a local memory (8) to which it get access through a local bus (11), and with an interface unit (10) for connection of the local bus (11) to a system bus (5) and wherein each of the system processors may have access the local memory of another processor through its own local bus, its own interface unit, the system bus and the local bus of the other processor, deadlock is prevented by providing a bypass unit (40) of the interface unit (10) for enabling access from the system bus to the local bus through the bypass unit, a block (9) connected between the local bus and the interface unit (10) for latching system bus access requests received from an agent processor on the local bus, and a block (12) for isolation of the agent processor outputs from local bus, so that each agent processor may post read/write operations in the related latching block(9) for latching bus access requests and thereafter release its own local bus without waiting completion of the operation, whereby the local bus is available to receive access requests received from the system bus through the bypass unit (40), the operation pending in the latching block (9) being completed, if a read operation, by reconnection of the agent processor (7) and the latching block (9) to the local bus.

    摘要翻译: 在具有分布式共享资源的数据处理多处理器系统中,其中每个系统处理器(7)至少设置有通过本地总线(11)访问的本地存储器(8),并且具有用于 本地总线(11)连接到系统总线(5),并且其中每个系统处理器可以通过其本地局部总线,其自身的接口单元,系统总线和本地总线访问另一个处理器的本地存储器 通过提供接口单元(10)的旁路单元(40)来防止死锁,以使得能够通过旁路单元从系统总线访问本地总线;连接在本地总线和本地总线之间的块(9) 接口单元(10),用于锁存从本地总线上的代理处理器接收到的系统总线访问请求,以及用于从本地总线隔离代理处理器输出的块(12),使得每个代理处理器可以将读/写操作 相关的锁定块(9) 暂停总线访问请求,然后释放其本地总线,而不用等待操作完成,由此本地总线可用于接收通过旁路单元(40)从系统总线接收的访问请求,在锁存块(9) )通过将代理处理器(7)和锁存块(9)重新连接到本地总线而完成读取操作。

    Multiprocessor system featuring global data duplication
    114.
    发明公开
    Multiprocessor system featuring global data duplication 失效
    多处理器系统特征全局数据重复

    公开(公告)号:EP0320607A3

    公开(公告)日:1990-05-16

    申请号:EP88118058.2

    申请日:1988-10-29

    发明人: Zulian, Ferruccio

    IPC分类号: G06F15/16

    CPC分类号: G06F15/161

    摘要: Multiprocessor computing system wherein a plurality of processors are connected each other through a system bus, each processor comprising a processing unit, a local memory and an interface unit, and wherein the processing unit of any processor has access to both its own local memory and the local memory of any other processor (through the interface unit and the system bus) for concurrently writing into all the local memories an information identified by a destination code as a global data to be concurrently written in all local memories.

    Belt stretcher for serial printer
    116.
    发明公开
    Belt stretcher for serial printer 失效
    Seilspannvorrichtungfürseriellen Drucker。

    公开(公告)号:EP0349814A1

    公开(公告)日:1990-01-10

    申请号:EP89111076.9

    申请日:1989-06-19

    发明人: Faré, Carlo

    IPC分类号: B41J19/00 F16H7/12

    CPC分类号: B41J19/005 F16H7/1263

    摘要: Belt stretcher for serial printer wherein a spring (14) imparts a predetermined pull to a driving belt (2) by applying a predetermined force to a slide (8) on which a belt return idle pulley (10) is mounted, and wherein slide offsets from a working point and in the direction opposite to the one of the force exerted by the spring (14) are minimized by a stop pad (18), preferably resilient and position adjustable, or automatically changeable in position owing to belt elongations occurring during operation.

    摘要翻译: 一种用于串行打印机的带式担架,其中弹簧(14)通过对安装有皮带返回空转滑轮(10)的滑块(8)施加预定的力来向传动带(2)施加预定的拉力,并且其中滑动偏移 由工作点和与弹簧(14)施加的力的方向相反的方向通过止动垫(18)最小化,该止动垫(18)优选地是弹性的和位置可调节的,或者由于操作期间发生皮带伸长而在位置上自动变化 。

    Memory system having predictive module selection
    118.
    发明公开
    Memory system having predictive module selection 失效
    Speicheranordnung mit Vorhersage der Bausteinauswahl。

    公开(公告)号:EP0332910A2

    公开(公告)日:1989-09-20

    申请号:EP89103357.3

    申请日:1989-02-25

    IPC分类号: G06F12/02 G06F12/06

    CPC分类号: G06F12/0215

    摘要: Memory system comprising a plurality of memory modules, wherein the selection of one among the memory modules is performed in preselection as to the memory activation for a memory access operation , on the basis of the previously performed selection of the same module for a preceding memory access operation and wherein, in case the performed preselection is not the appropriate one, the appropriate selection is first performed and then the memory access operation is "retried".

    摘要翻译: 存储器系统,包括多个存储器模块,其中,基于先前执行的用于先前存储器访问的相同模块的选择,存储器模块之一的选择在关于存储器访问操作的存储器激活的预选中被执行 并且其中,在所执行的预选不适当的情况下,首先执行适当的选择,然后“重试”存储器存取操作。

    Selective grounding device for electronic equipment
    119.
    发明公开
    Selective grounding device for electronic equipment 失效
    WählbareErdungsvorrichtungfürelektronische Anlagen。

    公开(公告)号:EP0332909A2

    公开(公告)日:1989-09-20

    申请号:EP89103356.5

    申请日:1989-02-25

    发明人: Salvagno, Elvio

    IPC分类号: H05K9/00

    CPC分类号: H05K9/0039

    摘要: Selective grounding device for electronic equipment comprising a printed circuit board fastened to a grounding frame by a fastening screw inserted in an opening of the board comprising a first conductive pad surrounding the opening and located on the board side contacting the frame, a second and a third conductive pads, insulated from each other surronding the opening on the opposite side of the board, the second pad being electrically connected to the first one, the third pad being electrically connected to the DC ground of the equipment, a washer selectively conductive or insulating, overlaying the second and third pad and clamped on said pads by the fastening screw, so that the DC ground is selectively connected or insulated form the frame ground depending on the washer being conductive or insulating, without need to differentiate, to this purpose, the printed circuit board.

    摘要翻译: 一种用于电子设备的选择性接地装置,包括通过插入该板的开口中的紧固螺钉固定在接地框架上的印刷电路板,该紧固螺钉包括围绕该开口并位于与该框架相接触的板侧的第一导电焊盘,第二和第三 导电焊盘,彼此绝缘缠绕在板的相对侧上的开口,第二焊盘电连接到第一焊盘,第三焊盘电连接到设备的DC接地,选择性地导电或绝缘的垫圈, 覆盖第二和第三焊盘并通过紧固螺钉夹紧在所述焊盘上,使得DC接地根据垫圈导电或绝缘而选择性地连接或绝缘,从而不需要区分印刷 电路板。