公开(公告)号：WO1989007570A1

公开(公告)日：1989-08-24

申请号：PCT/US1989000532

申请日：1989-02-13

Applicant: UNISYS CORPORATION

Inventor： UNISYS CORPORATION ,  LEONARD, Antony, John ,  MacLEOD, Donald, Allan

IPC: B65H03/08

CPC classification number: B65H3/0891

Abstract: A document feeding apparatus feeds a document (18) from the endmost position (22) of a stack of documents (10) into a document path (34) using a vacuum suction head operating through an aperture (36) in a baseplate (16). A vacuum source (38) attracts a document (18) to the suction head (40) during a return stroke (50). No vacuum is applied during a forward stroke (48). The vacuum source (38) comprises a reciprocal air pump (54, 108) having a potential energy store (66, 90) used to power a rapid vacuum-creating return stroke despite a low-power drive source (44, 96) to power the forward stroke. A barrel-pump (54) or bellows device (108) can be used as the reciprocal air pump. The vacuum-creating return stroke can be initiated either by solenoid (78) release or by operation of a cam (98) beyond a first angular position.

Abstract translation: 文件馈送装置使用通过基板（16）中的孔（36）操作的真空吸头将文件（18）从文件堆叠（10）的最终位置（22）馈送到文件路径（34） 。 在返回行程（50）期间，真空源（38）将文件（18）吸引到吸头（40）。 在向前冲程期间没有施加真空（48）。 真空源（38）包括具有势能存储器（66,90）的往复式空气泵（54,108），所述势能存储器用于为快速真空产生返回冲程提供动力，尽管使用低功率驱动源（44,96）来供电 前进中风。 桶式泵（54）或波纹管装置（108）可用作往复式空气泵。 真空产生返回冲程可以由螺线管（78）释放或通过凸轮（98）的操作超出第一角度位置来启动。

公开(公告)号：WO1989007529A1

公开(公告)日：1989-08-24

申请号：PCT/US1989000334

申请日：1989-01-27

Applicant: UNISYS CORPORATION

Inventor： UNISYS CORPORATION ,  STEELE, David

IPC: B41J15/04

CPC classification number: B41J29/46 ,  B41J11/42

Abstract: A monitor (18, 26, 28) monitors movement of paper (12) through a printer (16). The paper movement sensors (18, 26) comprise one central wheel (70) or a pair of spaced edge wheels (158) each operating an individual photo-optic wheel (164, 76). By counting pulses from the photo-optic wheels (76, 164) monitor logic (28) determines conditions of jam, over-feeding and skew within the printer (16) both on an instantaneous and on a short term cumulative basis. The system self-calibrates through an initializing routine and later, continuously during operation. Paper movement sensors (18, 26) are provided in dust-protected housings which can be chained together to provide monitoring facilities at many points.

公开(公告)号：WO1989006885A1

公开(公告)日：1989-07-27

申请号：PCT/US1989000153

申请日：1989-01-17

Applicant: UNISYS CORPORATION

Inventor： UNISYS CORPORATION ,  BARNDT, Robert, Allan, Sr.

IPC: H04L25/49

CPC classification number: H04L25/4904 ,  H04L7/033

Abstract: Apparatus for use in a fiber optic transmission system having a variable bit rate and a variable duty cycle. The system senses data bit transitions of bi-phase encoded data, and provides a restored clock frequency corresponding to a clock encoded in the bi-phase data. Midbit zero data transmissions are distinguished from the transitions denoting the beginning and end of a data pulse to define the pulse duty cycle. A logic circuit transfers operation between high speed and low speed modes of operation.

公开(公告)号：WO1989004768A1

公开(公告)日：1989-06-01

申请号：PCT/US1988004109

申请日：1988-11-10

Applicant: UNISYS CORPORATION

Inventor： UNISYS CORPORATION ,  CHENEST, Gerard

IPC: B41J11/62

CPC classification number: B41J11/62

Abstract: A printer is provided with a band (44) attached to the printhead (54) to move to-and-fro across the line of printing, and around rollers (98, 110) allowing it to pass beneath a printing support bed (12) so that introduced documents and documents being printed are restrained from excessive separation from the printing support bed (12). The band (44) is supported in association with the printhead (54) by non-return cylinders (58, 64) capable only of uni-directional rotation. Each cylinder (58, 64) is provided with a rotary spring (76) which takes up any excess length developing in the band (44). Spring loaded rollers (98, 110) at either end of the printing path support the band (44). Electrical indication is provided when one, the other or both of the cylinders (58, 64) cease to take up excess length and when one, the other or both of the spring loaded rollers (98, 110) also cease to take up excess length in the band (44). Operation of the printer is inhibited when any selected one or group of electrical signals indicates exhaustion of tension in the band (44). A signal is provided triggered by intermittent operation of an electrical detector with movement of the head indicating imminent shut-down of the printer or exhaustion of tension.

公开(公告)号：WO1989002643A1

公开(公告)日：1989-03-23

申请号：PCT/US1988003233

申请日：1988-09-21

Applicant: UNISYS CORPORATION

Inventor： UNISYS CORPORATION ,  CHIAO, James, L.

IPC: G11B20/10

CPC classification number: G11B20/10194

Abstract: Disclosed are disk drive recording techniques wherein a write data pattern is processed for ''write precompensation'' e.g., shifting bits time-wise relative to prescribed write clock pulses so that they may be read-back with less peak shift within a data window.

Abstract translation: 公开了一种磁盘驱动器记录技术，其中对“写入预补偿”进行写入数据模式的处理，例如相对于规定的写入时钟脉冲逐时移位位，使得它们可以在数据窗口内以较少的峰值移位被读回。

公开(公告)号：WO1989002125A1

公开(公告)日：1989-03-09

申请号：PCT/US1988002897

申请日：1988-08-26

Applicant: UNISYS CORPORATION

Inventor： UNISYS CORPORATION ,  KIM, Dongsun, Robert

IPC: G06F11/28

CPC classification number: G06F21/55 ,  G06F11/28

Abstract: A control store holding a large number of instruction words is accessed by a sequence of instruction addresses. An intercooperating system is provided whereby a test condition select logic unit and a next address select address logic unit are combined with address sequence error detection logic in order to develop an error flag signal should there be some error in the sequence of the actual instruction address data supplied to the control store.

Abstract translation: 存储大量指令字的控制存储器由指令地址序列访问。 提供了一种互操作系统，其中测试条件选择逻辑单元和下一个地址选择地址逻辑单元与地址序列错误检测逻辑组合，以便在实际指令地址数据的序列中存在一些错误时产生错误标志信号 提供给控制商店。

公开(公告)号：WO1988010463A2

公开(公告)日：1988-12-29

申请号：PCT/US1988001786

申请日：1988-05-31

Applicant: UNISYS CORPORATION

Inventor： UNISYS CORPORATION ,  CONWELL, Peter, Russell

IPC: G06F0

CPC classification number: G06N3/10

Abstract: A series of nodal processors (10, 20,...N) and each processor includes a nodal weight delay circuit (36), delay schedule (46), and decision algorithm circuit (56). Each nodal processor is cross-connected to every other processor by lines (19). Each nodal processor (10, 20, etc.) output is fed to the network history memory (18) which provides the ''status'' of each nodal processor on each machine cycle. The processor-controller (70) then senses when the outputs of the nodal processors have settled into a relative ''unchanging state'' indicating that system energy (E) has been minimized and represents an optimum state.

Abstract translation: 一系列节点处理器（10,20，... N）和每个处理器包括节点加权延迟电路（36），延迟调度（46）和判定算法电路（56）。 每个节点处理器通过线路（19）与每个其他处理器交叉连接。 每个节点处理器（10,20等）输出被馈送到在每个机器周期上提供每个节点处理器的“状态”的网络历史存储器（18）。 处理器控制器（70）然后感测节点处理器的输出何时已经建立成指示系统能量（E）已被最小化并且表示最佳状态的相对“不变状态”。

公开(公告)号：WO1988009828A1

公开(公告)日：1988-12-15

申请号：PCT/US1988001634

申请日：1988-05-23

Applicant: UNISYS CORPORATION

Inventor： UNISYS CORPORATION ,  ZELLER, Faith, Marie

IPC: C23C18/16

CPC classification number: H05K3/244 ,  H01L21/4846

Abstract: A module, for interconnecting integrated circuits which is comprised of a substrate (10), a layer of polyimide (11) disposed thereon, and a plurality of spaced apart copper conductors (12) on the layer of polyimide. This module is dipped into a solution of palladium chloride, thereafter it is dipped into a solution of sodium hydroxide, and thereafter it is dipped into an electroless plating solution for cobalt. As a result, a film of cobalt (14) is deposited on all exposed surfaces of the copper conductors, but no cobalt is deposited on the exposed polyimide surface between the conductors. This cobalt film protects the copper conductors from corrosion, and it does not short the conductors together.

公开(公告)号：WO1988003682A1

公开(公告)日：1988-05-19

申请号：PCT/US1987002812

申请日：1987-10-29

Applicant: UNISYS CORPORATION

Inventor： UNISYS CORPORATION ,  PEACOCK, Richard, Browning ,  MURPHY, Philip, Arthur ,  MISSIMER, David, Ross

IPC: G06F09/46

CPC classification number: G06F9/4881 ,  G06F12/0866 ,  G06F13/126

Abstract: An I/O processor (22) and memory (12) where a number of queues or linked control blocks (IOCB 1 and IOCB 2) are maintained for each device connected to the I/O processor (22), there is a control block for every operation to be performed by a particular device. A device may be an I/O bus (13a), a controller unit (14) or a peripheral unit (15), the I/O processor (22) maintains a table (46) of different combinations of buses and peripheral controllers that may be used to access a given peripheral unit (15) and selects that combination with the least frequency of use. A portion of main memory (12) is assigned as a single cache so that when the I/O processor (22) accesses a data segment in one of many disk drives (15), the entire disk drive track (59a, b and c) being accessed is read into the assigned cache portion of main memory since following data requests would most likely be made therefrom. The I/O system (13) is provided with a Task Control Processor (21) which provides for the scheduling of the different central processors (10) for the highest priority processes to be run. When an initiate I/O operation is detected, the respective processor (10) is released from the process that it is currently running and can be assigned to the next highest priority process. When requested I/O operation has been completed, the Task Control Processor (13) is signalled so that the Task Control Processor (13) can put the requesting process back into the priority list of processes to be run by the main central processors (10).

Abstract translation: 其中为连接到I / O处理器（22）的每个设备维护多个队列或链接的控制块（IOCB 1和IOCB 2）的I / O处理器（22）和存储器（12），存在控制块 用于由特定设备执行的每个操作。 设备可以是I / O总线（13a），控制器单元（14）或外围单元（15），I / O处理器（22）维护总线和外围控制器的不同组合的表（46），其中， 可以用于访问给定的外围设备（15）并选择具有最少使用频率的组合。 主存储器（12）的一部分被分配为单个高速缓存，使得当I / O处理器（22）访问许多磁盘驱动器（15）中的一个的数据段时，整个磁盘驱动器轨道（59a，b和c ）被读取到主存储器的分配的高速缓存部分中，因为可能由此产生以下数据请求。 所述I / O系统（13）设置有任务控制处理器（21），其提供用于要运行的最高优先级进程的不同中央处理器（10）的调度。 当检测到启动I / O操作时，相应的处理器（10）从其当前正在运行的进程中被释放，并且可以被分配给下一个最高优先级进程。 当所请求的I / O操作已经完成时，信号通知任务控制处理器（13），使得任务控制处理器（13）能够将请求过程重新返回到由主中央处理器（10）运行的进程的优先级列表中 ）。

公开(公告)号：WO1998023075A2

公开(公告)日：1998-05-28

申请号：PCT/US1997021279

申请日：1997-11-20

Applicant: UNISYS CORPORATION

Inventor： UNISYS CORPORATION ,  CHAMPA, John, J. ,  WILSON, George, S.

IPC: H04M00/00

CPC classification number: H04M3/567 ,  H04M2203/2061 ,  H04N7/152

Abstract: A hub (4) for multimedia multipoint video teleconferencing includes having a plurality of input/output ports (22), each of which may be coupled to a communication channel (12) for interchanging teleconferencing signals with remote sites (2). The hub (2) includes a plurality of signal processing functions (30) that can be selectively applied to teleconferencing signals so that the signals distributed by the hub (4) are in a form desired by the recipients or required by their equipment. Signal processing may include video, data, graphics, and communication protocol or format conversion, and language translation. The hub (4) may generate data (82) relating to the use of its processing capabilities during a teleconference, so that accounting or billing for a teleconference may be based at least in part on which hub resources were used, the extent of their use, and the person desiring their use. The identification of a signal processing function (30) to be used during a teleconference may be automatically performed in response to the content of signals received at the hub (4) during the teleconference.

Abstract translation: 用于多媒体多点视频电话会议的集线器（4）包括具有多个输入/输出端口（22），每个端口可以耦合到通信信道（12），用于与远程站点（2）交换电话会议信号。 集线器（2）包括可以选择性地应用于电话会议信号的多个信号处理功能（30），使得由集线器（4）分配的信号是接收者所期望的形式或由他们的设备要求的。 信号处理可以包括视频，数据，图形和通信协议或格式转换和语言翻译。 集线器（4）可以在电话会议期间生成与其处理能力的使用相关的数据（82），使得电话会议的计费或计费可以至少部分地基于哪个集线器资源被使用，其使用的程度 ，以及想要使用的人。 可以响应于在电话会议期间在集线器（4）处接收的信号的内容来自动执行在电话会议期间使用的信号处理功能（30）的识别。