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39 条记录 (耗时 0.043 秒)

    Automated Test Equipment Interface
    11.
    发明申请
    Automated Test Equipment Interface 有权
    自动测试设备接口

    公开(公告)号：US20090102457A1

    公开(公告)日：2009-04-23

    申请号：US11875627

    申请日：2007-10-19

    申请人： Vladimir Vayner ,  Brian Donovan

    发明人： Vladimir Vayner ,  Brian Donovan

    IPC分类号： G01R1/02

    CPC分类号： G01R31/2889 ,  G01R31/2887

    摘要： An automated test equipment interface system, e.g., for attaching a handler to a test head, includes a device interface board assembly. The device interface board assembly includes a stiffener frame having a frame body that is configured for attachment to a test head, alignment brackets connected to the frame body, and cam followers connected to the alignment brackets. The system also includes a docking device. The docking device includes a docking plate that is configured for attachment to a handler, pull-down ramps connected to the docking plate and movable between a retracted position and an extended position, an actuator operable to initiate movement of the pull-down ramps, and a coupling that translates movement of the actuator to corresponding movements of the pull-down ramps. The pull-down ramps can include cam surfaces that are configured to engage the cam followers of the device interface board assembly during movement between the retracted and extended positions to pull the device interface board assembly towards the docking plate.

    摘要翻译： 自动测试设备接口系统，例如用于将处理器附接到测试头，包括设备接口板组件。 设备接口板组件包括加强框架，该加强框架具有被配置为附接到测试头的框架主体，连接到框架主体的对准支架以及连接到对准支架的凸轮从动件。 该系统还包括对接装置。 对接装置包括配置成附接到处理器的对接板，连接到对接板并可在缩回位置和延伸位置之间移动的下拉斜面，可操作以启动下拉斜坡的移动的致动器，以及 将致动器的运动平移到下拉斜面的相应运动的联接器。 下拉斜面可以包括凸轮表面，凸轮表面构造成在缩回位置和延伸位置之间移动期间接合装置接口板组件的凸轮从动件，以将装置接口板组件拉向对接板。

    Dynamic multilevel task management method and apparatus
    12.
    发明授权
    Dynamic multilevel task management method and apparatus 失效
    动态多层次任务管理方法和装置

    公开(公告)号：US06920632B2

    公开(公告)日：2005-07-19

    申请号：US10227050

    申请日：2002-08-23

    申请人： Brian Donovan ,  Ray S. McKaig ,  William B. Dress

    发明人： Brian Donovan ,  Ray S. McKaig ,  William B. Dress

    IPC分类号： G06F9/48 ,  G05B13/02 ,  G05B19/18 ,  G06F9/00 ,  G06F9/38 ,  G06F9/46 ,  G06F15/16

    CPC分类号： G06F9/4881 ,  G06F9/3851

    摘要： A method for the orderly execution of multiple tasks in a data processing system and a circuit for implementing that method include a plurality of task modules which construct bids based upon the order of the task and its priority. The highest priority highest order number tasks are switched to available system execution resources. The system permits the orderly execution of round-robin task sets in an environment of dynamically changing priorities. When a round-robin task set is interrupted, the system is able to return to the round-robin task set after execution of the higher priority task at the exact point the interruption occurred.

    摘要翻译： 用于在数据处理系统中有序执行多个任务的方法和用于实现该方法的电路的方法包括：多个任务模块，其基于任务的顺序及其优先级构建投标。 最高优先级的最高订单号任务切换到可用的系统执行资源。 该系统允许在动态改变优先级的环境中有序地执行循环任务集。 当循环任务集中断时，系统能够在发生中断的确切点执行较高优先级任务后返回循环任务集。

    Digital to analog convertor
    13.
    发明授权
    Digital to analog convertor 有权
    数模转换器

    公开(公告)号：US06850177B2

    公开(公告)日：2005-02-01

    申请号：US10477684

    申请日：2002-05-13

    申请人： Brian Donovan ,  Ray S. McKaig

    发明人： Brian Donovan ,  Ray S. McKaig

    IPC分类号： H03M1/82 ,  H03M1/68

    CPC分类号： H03M1/68 ,  H03M1/822

    摘要： A method and circuit are provided for converting a digital signal to an analog signal in the form of a pulse width modulated (PWM) pulse (20). The PWM pulse is generated during an output cycle of a pulse generator to form a pulsetrain output of pulses at a fixed frequency whose widths are determined by dynamically changing digital input data. The method includes the steps of dividing the digital data signal into most significant bit (MSB) and least significant bit (LSB) portions. A PWM pulse is initiated at the beginning of an output cycle and continues while the MSB portion counts down in a counter (24). At the same time, the LSB portion of the digital data signal is converted to a precise phase delay signal which is a subcycle of an oscillator controlling the counter. This phase delay signal is generated after the termination of the MSB count, and halts the high period of the PWM pulse during the output cycle. When the output cycle ends, the process is repeated with the next digital signal.

    摘要翻译： 提供一种方法和电路，用于将数字信号转换成脉冲宽度调制（PWM）脉冲（20）形式的模拟信号。 在脉冲发生器的输出周期期间产生PWM脉冲以形成固定频率的脉冲的脉冲串输出，其宽度通过动态地改变数字输入数据来确定。 该方法包括将数字数据信号分成最高有效位（MSB）和最低有效位（LSB）部分的步骤。 PWM脉冲在输出周期开始时启动，并在MSB部分在计数器（24）中向下计数时继续。 同时，数字数据信号的LSB部分被转换为精确的相位延迟信号，该相位延迟信号是控制计数器的振荡器的子周期。 该相位延迟信号在MSB计数结束后产生，并在输出周期中停止PWM脉冲的高电平周期。 当输出周期结束时，使用下一个数字信号重复该过程。

    Reciprocating combustion engine
    15.
    发明申请
    Reciprocating combustion engine 有权
    往复式内燃机

    公开(公告)号：US20120272645A1

    公开(公告)日：2012-11-01

    申请号：US13544004

    申请日：2012-07-09

    申请人： Ray McKaig ,  Brian Donovan

    发明人： Ray McKaig ,  Brian Donovan

    IPC分类号： F02B75/18 ,  F02B33/32 ,  F02B37/00 ,  F02B33/00

    CPC分类号： F02B75/282 ,  F01B3/04 ,  F01B9/06 ,  F02B33/12 ,  F02B75/24 ,  F02B75/32

    摘要： Methods and apparatus are described for a reciprocating combustion engine. A method includes operating a dual-piston engine including introducing a gas into a pair of combustion chambers; introducing a fuel into the pair of combustion chambers; compressing the gas; combusting the gas and the fuel; and exhausting combusted gases. Each of the pistons drives a reciprocating crankshaft that protrudes through a cylinder wall and cooperatively rotate a pair of rotors by engaging substantially sinusoidal cam tracks on the rotors. An apparatus includes a cam driven, concentric drive rotary-valve dual-piston engine.

    摘要翻译： 描述了用于往复式内燃机的方法和装置。 一种方法包括操作包括将气体引入一对燃烧室的双活塞式发动机; 将燃料引入所述一对燃烧室; 压缩气体; 燃烧气体和燃料; 并排出燃烧的气体。 每个活塞驱动一个往复的曲轴，其通过汽缸壁突出并且通过接合转子上的大致正弦的凸轮轨道协同地旋转一对转子。 一种装置包括凸轮驱动的同心驱动旋转阀双活塞式发动机。

    Reciprocating combustion engine
    16.
    发明授权
    Reciprocating combustion engine 有权

    公开(公告)号：US08215270B2

    公开(公告)日：2012-07-10

    申请号：US12319900

    申请日：2009-01-12

    申请人： Ray McKaig ,  Brian Donovan

    发明人： Ray McKaig ,  Brian Donovan

    IPC分类号： F02B75/18

    CPC分类号： F02B75/282 ,  F01B3/04 ,  F01B9/06 ,  F02B33/12 ,  F02B75/24 ,  F02B75/32

    摘要： Methods and apparatus are described for a reciprocating combustion engine. A method includes operating a dual-piston engine including introducing a gas into a pair of combustion chambers; introducing a fuel into the pair of combustion chambers; compressing the gas; combusting the gas and the fuel; and exhausting combusted gases. Each of the pistons drives a reciprocating crankshaft that protrudes through a cylinder wall and cooperatively rotate a pair of rotors by engaging substantially sinusoidal cam tracks on the rotors. An apparatus includes a cam driven, concentric drive rotary-valve dual-piston engine.

    Pressure compensated fuel injector
    19.
    发明授权
    Pressure compensated fuel injector 有权
    压力补偿燃油喷射器

    公开(公告)号：US08870091B2

    公开(公告)日：2014-10-28

    申请号：US13373827

    申请日：2011-12-01

    申请人： Ray McKaig ,  Brian Donovan

    发明人： Ray McKaig ,  Brian Donovan

    IPC分类号： B05B1/30 ,  F02M57/02

    CPC分类号： F02M61/167 ,  F02M51/061 ,  F02M53/06 ,  F02M57/027

    摘要： A method of operating a pressure compensated fuel injector includes: filling a fuel chamber with a charge of fuel by closing an injector valve and circulating a fuel from a fuel source through a plurality of recirculating valves and a cap valve; then isolating the fuel chamber and the charge of fuel from the fuel source; then equalizing a pressure within the fuel chamber to a rising pressure outside the fuel chamber by reducing a volume of the isolated fuel chamber; and then activating a solenoid that is coupled to the injector valve, opening the injector valve; and then further reducing the volume of the isolated fuel chamber to apply an over pressure within the chamber, pumping fuel from the fuel chamber through the injection orifice.

    摘要翻译： 一种操作压力补偿燃料喷射器的方法包括：通过关闭喷射器阀并通过多个循环阀和盖帽使来自燃料源的燃料循环来填充燃料室的燃料; 然后从燃料源隔离燃料室和燃料的装料; 然后通过减小隔离燃料室的体积来将燃料室内的压力均衡到燃料室外的上升压力; 然后激活耦合到所述喷射阀的螺线管，打开所述喷射器阀; 然后进一步减小隔离燃料室的体积以在室内施加过压，从燃料室抽取燃料通过喷射孔。