Unity power factor power supply
    1.
    发明授权
    Unity power factor power supply 失效
    Unity功率因数电源

    公开(公告)号:US4677366A

    公开(公告)日:1987-06-30

    申请号:US862593

    申请日:1986-05-12

    摘要: A unity power factor power supply which includes a boost converter connected to the alternating current line which is controlled to draw sinusoidal current from the line by operating as a current regulator having a current reference control signal which tracks the line voltage waveform, thereby to minimize the required input current for a given power output.

    摘要翻译: 一个单位功率因数电源,其包括连接到交流电源线的升压转换器,该升压转换器被控制以通过作为具有跟踪线路电压波形的电流参考控制信号的电流调节器从线路中抽取正弦电流,从而最小化 给定功率输出所需的输入电流。

    Programmable servo pattern generator
    2.
    发明授权
    Programmable servo pattern generator 失效
    可编程伺服模式发生器

    公开(公告)号:US4584619A

    公开(公告)日:1986-04-22

    申请号:US584107

    申请日:1984-02-27

    IPC分类号: G11B5/012 G11B5/56 G11B20/12

    摘要: A programmable servo pattern generator for use in a magnetic disc drive servowriter system. The servo pattern generator of the present invention stores a multiplicity of different servo patterns in a convenient user-oriented format, and it provides high frequency pulse trains of NRZ data representing the different servo patterns. These different servo patterns are derived from the pattern generator of the invention as required and in the particular formats to be written into the magnetic disc drives of the same or different manufacturers.

    摘要翻译: 一种用于磁盘驱动器伺服系统的可编程伺服模式发生器。 本发明的伺服模式发生器以方便的用户导向格式存储多种不同的伺服模式,并且提供表示不同伺服模式的NRZ数据的高频脉冲串。 这些不同的伺服模式从根据需要的本发明的模式发生器和要写入相同或不同制造商的磁盘驱动器的特定格式导出。

    Portable field test unit for computer data and program storage disc drive
    3.
    发明授权
    Portable field test unit for computer data and program storage disc drive 失效
    用于计算机数据和程序存储磁盘驱动器的便携式现场测试单元

    公开(公告)号:US4348761A

    公开(公告)日:1982-09-07

    申请号:US184811

    申请日:1980-09-08

    申请人: James K. Berger

    发明人: James K. Berger

    摘要: A portable, programmable, microprocessor-controlled, universal field test unit is provided which is capable of performing functional tests on most, if not all, of the better known present-day disc drives, including the 80, 160 and 300 megabyte types. The unit to be described will be termed herein as a programmable disc drive qualifier, and it is capable of carrying out a wide variety of special test programs, as well as standard diagnostic programs, and it may also be used to format disc packs with many different formats, including thirty-two and eighty-six sector formats. The qualifier may be internally set to count all data errors, or only uncorrectable errors. The qualifier, in the embodiment to be described, is controlled by a combination of twelve operation keys and twelve numeric keys. A complete instruction is generated by the actuation of one of the operation keys and one of the numeric keys. Individual instructions may be executed in the unit, or it may be run automatically under program control. Programs may be created by the actuation of the operation keys and numeric keys, or they may originate from a pre-programmed memory.

    摘要翻译: 提供了便携式,可编程的,微处理器控制的通用现场测试单元,其能够对大多数(如果不是全部)更好的已知的当前盘驱动器(包括80,160和300兆字节类型)进行功能测试。 要描述的单元在本文中将被称为可编程盘驱动限定器,并且其能够执行各种各样的特殊测试程序以及标准诊断程序,并且还可以用于格式化具有许多 不同的格式,包括三十二和八十六种扇区格式。 限定符可能内部设置为对所有数据错误进行计数,也可以仅计算不可纠正的错误。 在要描述的实施例中的限定符由十二个操作键和十二个数字键的组合来控制。 通过操作一个操作键和一个数字键来产生完整的指令。 单个指令可以在单元中执行,也可以在程序控制下自动运行。 可以通过操作键和数字键的启动来创建程序,或者它们可以来自预先编程的存储器。

    Portable tester (qualifier) for evaluating and testing SCSI interface
magnetic disc drives in accordance with ANSI SCSI-A and SCSI-2
definitions
    4.
    发明授权
    Portable tester (qualifier) for evaluating and testing SCSI interface magnetic disc drives in accordance with ANSI SCSI-A and SCSI-2 definitions 失效
    用于根据ANSI SCSI-A和SCSI-2定义评估和测试SCSI接口磁盘驱动器的便携式测试仪(限定器)

    公开(公告)号:US5361346A

    公开(公告)日:1994-11-01

    申请号:US820912

    申请日:1992-01-15

    IPC分类号: G06F11/267 G06F11/00

    CPC分类号: G06F11/2221

    摘要: A programmable menu driven qualifier designed to make the abstract nature of small computer system interface (SCSI) definition easier to understand and work with. The qualifier is intended for testing and evaluating direct access and sequential access SCSI devices, such as disc drives and tape drives connected to the qualifier by an SCSI bus, the testing being carried out in accordance with ANSI SCSI-1 and ANSI SCSI-2 definitions. The qualifier is completely menu driven, and all commands are executed with a single keystroke of the keyboard. The qualifier uses a simple built-in concept which allows an operator quickly to become familiar with an SCSI protocol and command structure.

    摘要翻译: 一个可编程的菜单驱动限定器,旨在使小型计算机系统接口(SCSI)定义的抽象性质更容易理解和使用。 限定词旨在测试和评估直接访问和顺序访问SCSI设备,例如通过SCSI总线连接到限定词的磁盘驱动器和磁带驱动器,测试根据ANSI SCSI-1和ANSI SCSI-2定义进行 。 限定符是完全菜单驱动的,所有命令都是通过键盘的单键击执行的。 限定符使用简单的内置概念,允许操作员快速熟悉SCSI协议和命令结构。

    Servowriter system for magnetic disc drives
    5.
    发明授权
    Servowriter system for magnetic disc drives 失效
    磁盘驱动器伺服系统

    公开(公告)号:US4531167A

    公开(公告)日:1985-07-23

    申请号:US526485

    申请日:1983-08-25

    申请人: James K. Berger

    发明人: James K. Berger

    摘要: A portable servowriter system for writing a closed clock track and servo tracks on one or more of the fixed discs of a fixed disc magnetic disc drive without the aid of a mechanical head positioner; and which is also capable of writing a closed clock track and servo tracks (either on a dedicated disc surface or of the embedded form) on one or more of the discs of a rotating disc magnetic disc drive with the aid of a mechanical positioner.

    摘要翻译: 一种便携式伺服驱动器系统,用于在固定盘式磁盘驱动器的一个或多个固定盘上,无需机械头部定位器的帮助下,将封闭的时钟轨道和伺服轨迹写入; 并且其还能够借助于机械定位器在旋转盘式磁盘驱动器的一个或多个盘上写入闭合时钟轨道和伺服轨迹(在专用盘表面上或嵌入形式上)。

    Propulsion method using catalytic decomposition of hydrazine
    6.
    发明授权
    Propulsion method using catalytic decomposition of hydrazine 失效
    使用催化分解氢化物的推进方法

    公开(公告)号:US3673801A

    公开(公告)日:1972-07-04

    申请号:US3673801D

    申请日:1968-09-23

    发明人: GOLDBERGER MAX

    IPC分类号: C06D5/04

    CPC分类号: C06D5/04

    摘要: A method is provided for decomposing fuel comprising substantially hydrazine in which the hydrazine is brought in contact with a catalyst consisting essentially of solid porous Raney cobalt. The catalyst may be adheringly supported onto a substrate, such as a foraminous nickel substrate, which has particular use in a propulsion system wherein fuel injected into a propulsion chamber is caused to contact the catalyst, whereby to decompose said fuel and effectively produce propulsion.