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    • 1. 发明授权
    • Downhole connector for production tubing and control line and method
    • 生产管道和控制线及方法的井下连接器
    • US06390193B1
    • 2002-05-21
    • US09713062
    • 2000-11-15
    • David G. MartinDamien Patton
    • David G. MartinDamien Patton
    • E21B4700
    • A61B5/0472A61B5/04286A61N1/3702E21B17/06E21B23/04E21B47/00
    • A connector is disclosed to facilitate the testing of a control line or lines adjacent a bottomhole assembly. A running tool is connected to a lower portion of the connector which is, in turn, connected to the bottomhole assembly. The running tool allows testing of the control line adjacent the bottomhole assembly and thereafter, the operation of components of the bottomhole assembly. The running tool is removed and the upper portion of the string, including the mating portion of the connector at its lower end, is inserted into the wellbore. The connector components are self-aligning and lock to each other downhole to complete the production tubing and the control line tubing to the surface. Multiple control lines are envisioned between the surface and the bottomhole assembly. Multiple connectors can be used in a given production string, and provisions can be made for operation of a multiplicity of downhole components from the control line system which extends along the production tubing.
    • 公开了一种连接器,以便于对靠近井底组件的控制线或线的测试。 运行工具连接到连接器的下部,该下部又连接到井底组件。 运行工具允许对靠近井下组件的控制线进行测试,然后测试井底组件的部件的操作。 移除运行工具,并且包括其下端处的连接器的配合部分的绳的上部插入到井筒中。 连接器部件是自对准的并且彼此锁定在井下,以将生产管道和控制管线完成到表面。 在表面和井底组件之间设想了多条控制线。 可以在给定的生产线中使用多个连接器,并且可以对沿着生产管道延伸的控制线系统的多个井下部件进行操作。
    • 2. 发明授权
    • Downhole connector for production tubing and control line and method
    • 生产管道和控制线及方法的井下连接器
    • US06186229B1
    • 2001-02-13
    • US09239879
    • 1999-01-29
    • David G. MartinDamien Patton
    • David G. MartinDamien Patton
    • E21B4700
    • A61B5/0472A61B5/04286A61N1/3702E21B17/06E21B23/04E21B47/00
    • A connector is disclosed to facilitate the testing of a control line or lines adjacent a bottomhole assembly. A running tool is connected to a lower portion of the connector which is, in turn, connected to the bottomhole assembly. The running tool allows testing of the control line adjacent the bottomhole assembly and thereafter, the operation of components of the bottomhole assembly. The running tool is removed and the upper portion of the string, including the mating portion of the connector at its lower end, is inserted into the wellbore. The connector components are self-aligning and lock to each other downhole to complete the production tubing and the control line tubing to the surface. Multiple control lines are envisioned between the surface and the bottomhole assembly. Multiple connectors can be used in a given production string, and provisions can be made for operation of a multiplicity of downhole components from the control line system which extends along the production tubing.
    • 公开了一种连接器,以便于对靠近井底组件的控制线或线的测试。 运行工具连接到连接器的下部,该下部又连接到井底组件。 运行工具允许对靠近井下组件的控制线进行测试,然后测试井底组件的部件的操作。 移除运行工具,并且包括其下端处的连接器的配合部分的绳的上部插入到井筒中。 连接器部件是自对准的并且彼此锁定在井下,以将生产管道和控制管线完成到表面。 在表面和井底组件之间设想了多条控制线。 可以在给定的生产线中使用多个连接器,并且可以对沿着生产管道延伸的控制线系统的多个井下部件进行操作。
    • 4. 发明授权
    • Voice response system
    • 语音应答系统
    • US5553121A
    • 1996-09-03
    • US467328
    • 1995-06-06
    • David G. MartinLawrence L. Porter
    • David G. MartinLawrence L. Porter
    • G06F3/16H04M3/493H04M3/50H04M3/00
    • H04M3/493
    • The present invention relates to system for varying the voice menus and segments presented to the user of a voice response system according to the competence of the user. The response time of a user to voice prompts is measured and an average response time is determined. It is assumed that the lower the average response time, the greater the competence of the user. The average response time is used as an index to a table of ranges of response times. Each range has respective voice segments associated therewith. The voice segments comprise oral instructions or queries for the user and vary according to the anticipated competence of the user. If the average response time changes such that the voice segments indexed are different to the current voice segments then a data base containing information relating to user competence is updated to reflect such a change. Accordingly, when the user next interacts with the voice response system a new set of voice segments more appropriate to the user's competence with be played.
    • 本发明涉及根据用户的能力改变呈现给语音应答系统的用户的语音菜单和段的系统。 测量用户对语音提示的响应时间,并确定平均响应时间。 假设平均响应时间越短,用户的能力越强。 平均响应时间用作响应时间范围表的索引。 每个范围具有与其相关联的相应语音段。 语音段包括对用户的口头指令或查询,并且根据用户的预期能力而变化。 如果平均响应时间改变,使得索引的语音片段与当前语音片段不同,则包含与用户能力有关的信息的数据库被更新以反映这种改变。 因此,当用户接下来与语音响应系统进行交互时,可以播放更适合用户能力的一组新的语音段。
    • 8. 发明授权
    • Fractional PLL employing a phase-selection feedback counter
    • 采用相位选择反馈计数器的小数PLL
    • US06526374B1
    • 2003-02-25
    • US09460169
    • 1999-12-13
    • David G. Martin
    • David G. Martin
    • G06F300
    • H03L7/18H03L7/0891H03L7/0996
    • A phase-locked loop (PLL) employs a ring oscillator for the voltage-controlled oscillator (VCO), and the ring oscillator comprises an odd number of inverting stages operating at a given frequency. The frequency of the ring oscillator is determined by the delay through each stage and the number of stages. The output signal of each stage has a phase determined by the number of stages, and each stage provides its output signal with a different phase. The VCO of the PLL selects phases of the ring oscillator to clock the counter of the feedback divider of the PLL. Each phase is selected by a multiplexer (mux) under the control of a finite state machine that monitors the output of the counter. When the counter completes a full count cycle on one phase of the ring oscillator, the finite state machine selects a different phase of the ring oscillator to clock the counter for the next count cycle. The phase selected advances or delays the start of the next count cycle by the delay of one or more stages of the ring oscillator. Thus, for a PLL having a three-stage ring oscillator and a mux selecting the phase from each stage sequentially (first to last) for every count cycle, the effective count of the counter is (V+⅓) or (N−⅓), as opposed to N, depending on whether the selected phase delays or advances the start of the next count cycle.
    • 锁相环(PLL)使用用于压控振荡器(VCO)的环形振荡器,并且环形振荡器包括以给定频率工作的奇数个反相级。 环形振荡器的频率由每个级的延迟和级数决定。 每级的输出信号具有由级数确定的相位,并且每个级提供具有不同相位的其输出信号。 PLL的VCO选择环形振荡器的相位来为PLL的反馈分频器的计数器提供时钟。 每个相位由多路复用器(多路复用器)选择,在有限状态机的控制下,监视计数器的输出。 当计数器在环形振荡器的一个相位上完成一个完整的计数周期时,有限状态机选择环形振荡器的不同相位来计数下一个计数周期。 所选择的相位延迟或延迟下一个计数周期的开始由环形振荡器的一个或多个阶段的延迟。 因此,对于具有三级环形振荡器和多路复用器的PLL,对于每个计数周期,从每个级顺序地(首先到最后)选择相位,计数器的有效计数为(V + 1/3)或(N- 1/3),与N相反,取决于所选择的相位是延迟还是推进下一个计数周期的开始。
    • 10. 发明授权
    • Low leakage tristatable MOS output driver
    • 低泄漏三态MOS输出驱动器
    • US6107829A
    • 2000-08-22
    • US52074
    • 1998-03-31
    • David G. Martin
    • David G. Martin
    • H03K19/003H03K19/00H03K19/0175H03K19/02H03K19/094
    • H03K19/00315
    • In accordance with the present invention there is provided a tristatable digital MOS output buffer/driver having a significantly reduced subthreshold leakage current. The buffer of the present invention comprises three P-channel transistor devices and three N-channel transistor devices. A reduced subthreshold leakage current is achieved by having the source of the output N-channel transistor device and the output P-channel transistor device connected to nodes having a variable voltage. This adjusts the source-to-body voltages of the output N-channel and P-channel transistor devices to be equal in magnitude to the voltage of the positive supply, resulting in the reduction of subthreshold leakage currents.
    • 根据本发明,提供了具有明显减小的亚阈值漏电流的可跟踪数字MOS输出缓冲器/驱动器。 本发明的缓冲器包括三个P沟道晶体管器件和三个N沟道晶体管器件。 通过使输出N沟道晶体管器件的源极和输出P沟道晶体管器件连接到具有可变电压的节点来实现减小的亚阈值漏电流。 这将调节输出N沟道和P沟道晶体管器件的源极到体电压的幅度与正电源的电压相等,导致亚阈值漏电流的减小。