公开(公告)号：WO1994008299A1

公开(公告)日：1994-04-14

申请号：PCT/US1993009370

申请日：1993-09-29

Applicant: COMPAQ COMPUTER CORPORATION

Inventor： COMPAQ COMPUTER CORPORATION ,  MAYER, Dale, J. ,  LANDRY, John, A.

IPC: G06F13/24

CPC classification number: G06F13/24

Abstract: A computer system includes a filter at an interrupt request input for a microprocessor system. The interrupt signal filter suppresses any positive pulse that is shorter than 9 cylces of the host clock. Only signals that are asserted for at least 17 HCLK cycles are guaranteed passage to the interrupt controller to assert the interrupt request. In addition, any negative pulse on the IRQ signal is latched and extended for at least 9 cycles of the host clock. The filter thus suppresses noise to prevent unnecessary interrupts, and provides for enhanced detection of negative levels and rising edges for negative-going interrupt request signals.

Abstract translation: 计算机系统包括用于微处理器系统的中断请求输入端的滤波器。 中断信号滤波器抑制任何短于主机时钟的9个电平的正脉冲。 只有断言至少17个HCLK周期的信号才能保证通过中断控制器来断言中断请求。 此外，IRQ信号上的任何负脉冲被锁存并延长至少9个主机时钟周期。 滤波器因此抑制噪声以防止不必要的中断，并提供用于负向中断请求信号的负电平和上升沿的增强检测。

公开(公告)号：WO1994008289A1

公开(公告)日：1994-04-14

申请号：PCT/US1993009150

申请日：1993-09-24

Applicant: COMPAQ COMPUTER CORPORATION

Inventor： COMPAQ COMPUTER CORPORATION ,  BURCKHARTT, David, M. ,  PEREZ, Lazaro, D. ,  EMERSON, Theodore, F. ,  DOW, Randolph, O. ,  STIMAC, Gary, A.

IPC: G06F09/445

CPC classification number: G06F11/2294 ,  G06F9/4406 ,  G06F11/0757 ,  G06F11/1415 ,  G06F11/22 ,  G11C29/76

Abstract: A computer system includes a timer which times out if the operating system does not periodically reset the timer. When the system fails and no longer resets the timer, the timer times out, and the computer is reset. The system performs its power on program and checks the memory array for bad memory blocks, which are mapped out of the memory. Next, the system alerts the operator of the failure using a pager. The system then reboots itself from a hard drive having two separate bootable partitions, one for the operating system in the first partition, and one for a diagnostics program in the second partition, so that an operator may diagnose and remedy the problem. The operator may set an indication of which partition to use for booting. The system further provides for remote access so that the operator may interact with the diagnostics program from a remote location.

Abstract translation: 计算机系统包括定时器，如果操作系统不周期性地重置定时器，则该定时器超时。 当系统出现故障并且不再复位定时器时，定时器超时，计算机被复位。 系统执行程序的电源，并检查存储器阵列中是否存储器中映射的坏内存块。 接下来，系统使用寻呼机向操作者报告故障。 然后，该系统从具有两个单独可引导分区的硬盘驱动器重新启动，一个用于第一分区中的操作系统，另一个用于第二分区中的诊断程序，从而操作者可以诊断和补救该问题。 操作员可以设置用于引导的哪个分区的指示。 该系统进一步提供远程访问，使得操作者可以从远程位置与诊断程序交互。

公开(公告)号：WO1994001285A1

公开(公告)日：1994-01-20

申请号：PCT/US1993006173

申请日：1993-06-29

Applicant: COMPAQ COMPUTER CORPORATION

Inventor： COMPAQ COMPUTER CORPORATION ,  GOOD, Lowell, M.

IPC: B41J02/155

CPC classification number: B41J2/1632 ,  B41J2/155 ,  B41J2/1609 ,  B41J2/1623 ,  B41J2/1631 ,  B41J2/1634 ,  B41J2/1643 ,  B41J2/1646 ,  Y10T29/42

Abstract: A page wide ink jet printhead (2) employed in a printer for printing characters on a print medium. The print medium progresses in a path through the printer during printing. The page wide ink jet printhead (2) includes print nozzles (26) selectively aligned across the width of the print medium allowing the printhead to remaining stationary; a means for selectively ejecting ink through particular nozzles, which means is formed of a piezoelectric material (8), which has microgrooves (10) therein; ink residing in the microgrooves for ejection therefrom; sidewalls of the microgrooves which act as actuators to cause ink to be ejected from the microgrooves (10) in response to an electrical pulse supplied thereto; and electrical circuitry to appropriately direct the electrical pulse to create an electric field across particular microgrooves to obtain a desired print character formed from ink droplets ejected from the microgrooves.

Abstract translation: 一种用于打印机中用于在打印介质上打印字符的页宽喷墨打印头（2）。 打印介质在打印过程中通过打印机的路径进行。 页面宽的喷墨打印头（2）包括选择性地在打印介质的宽度上对齐的打印喷嘴（26），允许打印头保持静止; 用于通过特定喷嘴选择性地喷射油墨的装置，该装置由在其中具有微槽（10）的压电材料（8）形成; 油墨位于微槽中以从中排出; 作为致动器的微槽的侧壁响应于供给其的电脉冲而使墨水从微槽（10）喷出; 以及用于适当地引导电脉冲以产生跨越特定微槽的电场以获得由从微槽排出的墨滴形成的期望打印字符的电路。

公开(公告)号：WO1993018502A1

公开(公告)日：1993-09-16

申请号：PCT/US1993001772

申请日：1993-02-26

Applicant: COMPAQ COMPUTER CORPORATION

Inventor： COMPAQ COMPUTER CORPORATION ,  KENNEDY, John, R. ,  ANDO, Kenshiro

IPC: G09G05/40

CPC classification number: G09G5/40

Abstract: A method and apparatus which allows U.S. software applications which write directly to the video text RAM area to run in a purely graphics mode operating system environment such as Japanese mode of DOS/V. Memory management software includes an option which reserves main memory at system initialization for receiving the text RAM area in IBM PC compatible systems. A software driver periodically checks to determine if anything has changed in the text RAM area using the ''dirty'' bits associated with the page table entries in the 386 paging mechanism. If new data has been written to this area, the driver converts the ASCII data written to this area to graphics based characters which are then displayed onto the computer screen.

Abstract translation: 允许直接写入视频文本RAM区域的美国软件应用程序在纯图形模式操作系统环境（例如DOS / V的日文模式）下运行的方法和装置。 内存管理软件包括一个选项，用于在系统初始化时保留主内存，以便在IBM PC兼容系统中接收文本RAM区域。 软件驱动程序定期检查使用与386页面寻呼机制中的页表项相关联的“脏”位来确定文本RAM区域中是否有变化。 如果新的数据已写入该区域，则驱动程序将写入该区域的ASCII数据转换为基于图形的字符，然后显示在计算机屏幕上。

公开(公告)号：WO1993015412A1

公开(公告)日：1993-08-05

申请号：PCT/US1993000372

申请日：1993-01-20

Applicant: COMPAQ COMPUTER CORPORATION

Inventor： COMPAQ COMPUTER CORPORATION ,  HESS, Randall, L. ,  COOPER, Patrick, R. ,  INTERIANO, Armando ,  FREIMAN, Joseph, F.

IPC: G01R31/36

CPC classification number: G01R31/3648 ,  G01R19/16542 ,  G01R31/006 ,  G01R31/361 ,  G01R31/3624 ,  G01R31/3655

Abstract: A battery charge controller and fuel gauge which accurately monitors the voltage, temperature, and charge and discharge current of a rechargeable battery, and calculates the battery's charge capacity and charge level. Each time the battery is fully discharged, any calculated charge level remaining is divided by two and subtracted from the previously calculated charge capacity. When the battery is fully charged, the charge level is set equal to the charge capacity. During subsequent charge and discharge, the current is converted to a coulomb count and added or subtracted from the charge level to maintain an accurate charge level. Fast charge inefficiency due to temperature is considered by subtracting a temperature proportional factor before the charge level of the battery is updated. The charge level, voltage and temperature are used to determine the optimal fast charge termination point to achieve full charge and prevent temperature abuse and overcharge. A fast charge is applied only if the battery is within proper voltage and temperature ranges. The charge controller includes a microcontroller circuit within the same battery pack as the battery, which is powered by the battery when AC power is unavailable. The microcontroller circuit consumes very little power, measures circuit errors to assure data accuracy, times periods of self-discharge and updates the charge level accordingly. The microcontroller circuit also includes memory to store the battery charge information and a communication port to provide the charge information to a computer system connected to the battery pack.

公开(公告)号：WO1993014468A1

公开(公告)日：1993-07-22

申请号：PCT/US1993000622

申请日：1993-01-13

Applicant: COMPAQ COMPUTER CORPORATION

Inventor： COMPAQ COMPUTER CORPORATION ,  ALBERS, Thomas, M. ,  EBERST, John, V. ,  FONTENOT, Darwin ,  PYRA, Richard, L. ,  WELKER, Mark, W. ,  WOOD, Paul, B. ,  BRESENHAM, Jack, E.

IPC: G06F15/72

CPC classification number: G06T11/203

Abstract: Line draw circuitry receives parameters defining first and second endpoints of a line and calculates line parameters based on the first and second endpoints. The line parameters may be modified prior to drawing a line based on the calculated and modified parameters.

Abstract translation: 线绘制电路接收定义线的第一和第二端点的参数，并基于第一和第二端点计算线路参数。 在根据计算和修改的参数绘制线之前，可以修改线参数。

公开(公告)号：WO1993013475A1

公开(公告)日：1993-07-08

申请号：PCT/US1992011283

申请日：1992-12-18

Applicant: COMPAQ COMPUTER CORPORATION

Inventor： COMPAQ COMPUTER CORPORATION ,  NEUFELD, E., David

IPC: G06F03/06

CPC classification number: G06F11/1076 ,  G06F3/0601 ,  G06F2003/0692 ,  G06F2211/1026 ,  G11B20/1833

Abstract: A method and apparatus for improving disk performance in a disk array subsystem. A nonuniform mapping scheme is used wherein the disk array includes regions having varying sizes of data stripes. The disk array includes a region comprised of data stripes having a stripe size that corresponds to the size of the internal data structures frequently used by the file system, in addition to a region comprised of a number of data stripes having a larger stripe size which are used for general data storage. When a write operation occurs involving one of the data structures, the data structure is preferably mapped to the small stripe region in the disk array having a size which matches the size of the data structure. In this manner, whenever a file system data structure is updated, the operation is a full stripe write. This removes the performance penalty associated with partial stripe write operations.

Abstract translation: 一种用于提高磁盘阵列子系统中的磁盘性能的方法和装置。 使用不均匀的映射方案，其中盘阵列包括具有不同大小的数据条带的区域。 磁盘阵列除了包括具有较大条带大小的多个数据条带的区域之外，还包括由具有对应于文件系统频繁使用的内部数据结构的大小的条带大小的数据条带组成的区域。 用于一般数据存储。 当涉及其中一个数据结构的写入操作发生时，优选将数据结构映射到具有与数据结构大小相匹配的大小的磁盘阵列中的小区域。 以这种方式，每当更新文件系统数据结构时，操作是完整的条带写入。 这消除了与部分条带写入操作相关联的性能损失。

公开(公告)号：WO1996016367A3

公开(公告)日：1996-05-30

申请号：PCT/US1995015153

申请日：1995-11-21

Applicant: COMPAQ COMPUTER CORPORATION

Inventor： COMPAQ COMPUTER CORPORATION ,  MERKEL, Harold, S.

IPC: G06F01/16

公开(公告)号：WO1994027826A1

公开(公告)日：1994-12-08

申请号：PCT/US1994005520

申请日：1994-05-13

Applicant: COMPAQ COMPUTER CORPORATION

Inventor： COMPAQ COMPUTER CORPORATION ,  HAYES, Donald, J.

IPC: B41J02/16

CPC classification number: B41J2/14209 ,  B41J2/1609 ,  B41J2/1632 ,  Y10T29/42 ,  Y10T29/49401

Abstract: A high density ink jet printhead (10) is fabricated by first forming a body subassembly (12) comprising a piezoelectric main block (13) having metallic layers (22, 24) disposed on opposite first and second sides (14, 16) thereof, and piezoelectric sheets (26, 28) secured to front portions of the metallic layers. Using a precision dicing saw, a first spaced series of parallel grooves, longitudinally extending between the front and rear ends of the subassembly, are cut into the first side of the subassembly. The subassembly is then placed, groove side down, in a support fixture having mirrors secured thereto and positioned adjacent the opposite ends of the grooves. Reflections of opposite groove ends in the mirrors are then used as line-of-sight guides to position the saw which is then used to form a second series of grooves in the second subassembly side which are in precise lateral alignment with the first series of grooves. Covering blocks (34, 36) are then secured to the opposite piezoelectric sheets (26, 28) over the open outer sides of the grooves and form therewith interior ink receiving channels bounded along their lengths by piezoelectrically deflectable side wall segments of the printhead body. The rear ends of the channels are sealed off, ink supply conduits (64) are communicated with rear end portions of the channels, and a plate member (58) having first and second spaced series of ink discharge orifices (60, 62) respectively communicated with the front ends of the first and second series of interior channels is secured over the front end of the printhead body.

Abstract translation: 通过首先形成包括设置在其相对的第一和第二侧（14,16）上的金属层（22,24）的压电主块（13）的主体子组件（12）来制造高密度喷墨打印头（10） 以及固定到金属层的前部的压电片（26,28）。 使用精密切割锯，在子组件的前端和后端之间纵向延伸的第一间隔开的一系列平行凹槽切割成子组件的第一侧。 然后将该子组件向下放置在具有固定到其上并且邻近凹槽的相对端定位的镜子的支撑固定件中。 然后将反射镜中相对的凹槽端部的反射用作定位导轨，以定位锯，然后将其用于在第二子组件侧中形成与第一系列凹槽精确横向对准的第二系列凹槽 。 然后，覆盖块（34,36）固定在凹槽的开放的外侧上的相对的压电片（26,28）上，并与其形成沿其长度限定的内部油墨接收通道，该压缩片通过打印头主体的可压电偏转的侧壁段。 通道的后端被密封，供墨管道（64）与通道的后端部分连通，并且具有分别连通的第一和第二间隔的一系列喷墨孔（60,62）的板件（58） 其中第一和第二系列内部通道的前端固定在打印头主体的前端上。

公开(公告)号：WO1994026524A1

公开(公告)日：1994-11-24

申请号：PCT/US1994005132

申请日：1994-05-04

Applicant: COMPAQ COMPUTER CORPORATION

Inventor： COMPAQ COMPUTER CORPORATION ,  STORTZ, James, L. ,  WALLACE, David, B.

IPC: B41J02/045

CPC classification number: B41J2/14209 ,  B41J2/04541 ,  B41J2/04581 ,  B41J2/04588

Abstract: A digital driver (12, 54) for an ink jet printhead (10) and an associated method for selectively applying voltage to a piezo-electric sidewall actuator (34) of the ink jet printhead. The digital driver (54) includes positive (V+) and negative voltage sources (V-), a first switching element (56) having a first control input (60), a first voltage supply input (62) connected to the positive voltage source (V+), and a first ouput (64), and a second switching element (58) having a second control input (61), a second voltage supply input (63) connected to the negative voltage source (V-), and a second output (65) connected to the first output (64) to provide a single output (28) connected to the piezoelectric sidewall actuator (34). By asserting the first control input (66) for a first time period, the first switching element (56) generates a positive voltage pulse (70) at the single output to displace the sidewall actuator (34) from a rest position to a first position. Next, by simultaneously deasserting the first control input (66) and asserting the second control input (68), the second switching element (58) generates a negative voltage pulse (74) at the single output to displace the sidewall actuator (34) from the first position, past the rest position, to a second position. Next, by deasserting the second control input (68), the sidewall actuator (34) passively returns to the rest position. The return to the rest position may be assisted by discharging the printhead (10) after deassertion of the second control input (68), by re-applying the first voltage for a second, shorter, time period to actively drive the sidewall actuator (34) towards the rest position, or by both.

Abstract translation: 一种用于喷墨打印头（10）的数字驱动器（12,54）和用于选择性地向喷墨打印头的压电侧壁致动器（34）施加电压的相关方法。 数字驱动器（54）包括正（V +）和负电压源（V-），具有第一控制输入（60）的第一开关元件（56），连接到正电压源的第一电压供应输入 （V +）和第一输出（64）以及具有第二控制输入（61）的第二开关元件（58），连接到负电压源（V-）的第二电压供给输入端（63） 第二输出（65）连接到第一输出端（64），以提供连接到压电侧壁致动器（34）的单个输出（28）。 通过在第一时间段内确定第一控制输入（66），第一开关元件（56）在单个输出处产生正电压脉冲（70），以使侧壁致动器（34）从静止位置移动到第一位置 。 接下来，通过同时解除第一控制输入（66）和断言第二控制输入（68），第二开关元件（58）在单个输出处产生负电压脉冲（74），以使侧壁致动器（34）从 第一个位置，通过休息位置，到第二个位置。 接下来，通过解除第二控制输入（68），侧壁致动器（34）被动地返回到静止位置。 可以通过在第二个较短的时间周期之后重新施加第一电压来主动驱动侧壁致动器（34）来辅助通过在第二控制输入端（68）解除驱动之后将打印头（10） ）朝向休息位置，或由两者。