公开(公告)号：US20120140594A1

公开(公告)日：2012-06-07

申请号：US12958158

申请日：2010-12-01

Applicant: David M. Cook ,  Ran-Fun Chiu

Inventor： David M. Cook ,  Ran-Fun Chiu

IPC: G01V1/36

CPC classification number: G01V1/375

Abstract: Methods and apparatus are provided related to seismic sensor data. Seismic sensor signaling is digitally sampled in accordance with a local clock and without synchronization to standardized time. Timestamp data is used to synthesize data correspondent to an artificial stimulus waveform. Cross-correlation of the synthesized data with the seismic sensor data yields a correlation result. The correlation result can be scaled to an original starting time for the seismic data sampling. The scaled correlation result can be stored in computer-accessible media and subject to further processing or interpretation.

Abstract translation: 提供了与地震传感器数据相关的方法和装置。 地震传感器信号根据本地时钟进行数字采样，无需与标准化时间同步。 时间戳数据用于合成与人造刺激波形相对应的数据。 合成数据与地震传感器数据的相互关系产生相关结果。 相关结果可以缩放到地震数据采样的原始起始时间。 缩放的相关结果可以存储在计算机可访问的媒体中，并进行进一步的处理或解释。

公开(公告)号：US08653873B2

公开(公告)日：2014-02-18

申请号：US13384723

申请日：2010-02-19

Applicant: David M. Cook

Inventor： David M. Cook

IPC: H03H11/16 ,  H03K9/08

CPC classification number: H03K7/08 ,  H03K2005/00286

Abstract: One embodiment provides a system for generating a reference waveform. The system can include a first pulse-width modulation (PWM) channel configured to provide a first PWM waveform having a first duty cycle and a first frequency. A second PWM channel is configured to provide a second PWM waveform having a second duty cycle and the first frequency. Combinational logic is configured to combine the first PWM waveform and the second PWM waveform to generate a phase-shifted reference PWM waveform having the first frequency and a phase shift that is based on the first duty cycle and the second duty cycle.

Abstract translation: 一个实施例提供了一种用于产生参考波形的系统。 该系统可以包括被配置为提供具有第一占空比和第一频率的第一PWM波形的第一脉冲宽度调制（PWM）通道。 第二PWM通道被配置为提供具有第二占空比和第一频率的第二PWM波形。 组合逻辑被配置为组合第一PWM波形和第二PWM波形以产生具有基于第一占空比和第二占空比的第一频率和相移的移相参考PWM波形。

公开(公告)号：US08291991B1

公开(公告)日：2012-10-23

申请号：US12644335

申请日：2009-12-22

Applicant: David M. Cook

Inventor： David M. Cook

IPC: A01B45/00

CPC classification number: A01B45/02

Abstract: A walk-behind soil aerator includes an engine, a differential, and left and right tine assemblies driven by the first and second output shafts of the differential, and a variable speed drive means between the engine and the differential, as well as a control means accessible by an operator walking behind the aerator which allows the operator to make tight turns by gradually reducing the speed of the drive means to a desired slow speed in order for the driven tines to drive the aerator through the turn and then gradually increasing the speed of the drive means without having to change the engine speed.

Abstract translation: 步行式土壤曝气器包括由差速器的第一和第二输出轴驱动的发动机，差速器和左右齿梳组件，以及在发动机和差速器之间的变速驱动装置，以及控制装置 通过在曝气器后面行走的操作者进行操作，这允许操作者通过逐渐将驱动装置的速度降低到期望的慢速来进行紧密的转动，以便被驱动的齿通过转动驱动曝气器，然后逐渐增加速度 驱动装置而不必改变发动机转速。

公开(公告)号：US07426864B2

公开(公告)日：2008-09-23

申请号：US11360621

申请日：2006-02-23

Applicant: David M Cook

Inventor： David M Cook

IPC: G01P3/00

CPC classification number: G01P1/08 ,  B60K37/02 ,  B60K2350/1064 ,  B60K2350/203 ,  G01D11/28 ,  G01P1/04

Abstract: A gauge of a vehicle instrument cluster includes a gauge defining a dial. A pointer is rotatably mounted in the instrument cluster and movable to a plurality of positions relative to the dial. A first scale of numbers is arranged sequentially around the dial and corresponds to a first range of vehicle speed. A second scale of numbers is arranged sequentially around the dial and corresponds to a second range of vehicle speed. The second scale of numbers corresponds to vehicle speeds that are faster than the first range of vehicle speeds and have like units. The first scale and the second scale of numbers are arranged in a radially offset relationship.

Abstract translation: 车辆仪表板的量规包括定义表盘的表。 指针可旋转地安装在仪表盘中并可相对于表盘移动到多个位置。 数字的第一比例依次布置在表盘周围，并对应于车速的第一范围。 数字的第二比例依次布置在刻度盘周围，并对应于车速的第二范围。 数字的第二比例对应于比第一范围的车辆速度快的车辆速度，并且具有相似的单元。 数字的第一刻度和第二刻度以径向偏移关系布置。

公开(公告)号：US5150883A

公开(公告)日：1992-09-29

申请号：US634124

申请日：1990-12-31

Applicant: David M. Cook-Martin

Inventor： David M. Cook-Martin

IPC: F16J15/32 ,  F16K27/00 ,  F16K27/04

CPC classification number: F16K27/003 ,  F16J15/32 ,  F16K27/041

Abstract: The invention provides a variety of fluid mechanics devices such as fluid-flow valves; piston and cylinder devices; fluid-flow restrictors; fluid reservoirs and fluid-flow manifolds. The devices are build up from stacks of wafer-like components. Which preferably are transparent and in each case, at least one of those components comprises an axial port and a radial port communicating with the axial port, there being concentric annular recesses in the faces of the component to receive an outer "O" ring type static seal between two mating components, and an inner "O" ring dynamic seal which acts between the wafer component and a vale rod piston rod, spindle or like device extending through the aligned axial ports of all the wafer components. Beside provide the double seal (static and dynamic) the arrangement also permits of great versatility of assembly.

Abstract translation: PCT No.PCT / GB89 / 00757 Sec。 371 1990年12月31日第 102（e）日期1990年12月31日PCT PCT 1989年7月5日PCT公布。 第WO90 / 00695号公报 1990年1月25日。本发明提供了各种流体力学装置，如流体流量阀; 活塞和气缸装置; 流体限流器; 流体储存器和流体流动歧管。 这些器件由晶片状部件的堆叠构成。 其优选地是透明的，并且在每种情况下，这些部件中的至少一个部件包括与轴向端口连通的轴向端口和径向端口，在部件的表面中具有同心的环形凹部，以接收外部“O”形环型静电 两个配合部件之间的密封，以及作用在晶片部件和延伸穿过所有晶片部件的对准的轴向端口的阀杆活塞杆，主轴或类似装置之间的内部“O”形环动态密封件。 旁边提供双重密封（静态和动态），安装也允许组装的多功能性。

公开(公告)号：US20130038358A1

公开(公告)日：2013-02-14

申请号：US13206754

申请日：2011-08-10

Applicant: David M. Cook ,  Andrew L. Van Brocklin

Inventor： David M. Cook ,  Andrew L. Van Brocklin

IPC: H03L7/00

CPC classification number: G04R20/30 ,  G01V1/26 ,  G01V2200/12 ,  G04R20/06

Abstract: Determining time latency at a sensor node in a mesh network. A beacon time is received at the sensor node from an upstream node, the beacon time offset from global time by the latency. The latency, the global time, and a corresponding local time are determined at the sensor node.

Abstract translation: 确定网状网络中传感器节点的时间延迟。 在传感器节点从上游节点接收信标时间，信标时间偏离全局时间延迟。 在传感器节点处确定等待时间，全局时间和相应的本地时间。

公开(公告)号：US07207117B1

公开(公告)日：2007-04-24

申请号：US11360622

申请日：2006-02-23

Applicant: David M Cook ,  Jagadeesh Krishnamurthy ,  Kevin Sockolosky ,  Steven Tononi

Inventor： David M Cook ,  Jagadeesh Krishnamurthy ,  Kevin Sockolosky ,  Steven Tononi

IPC: G01D11/28

CPC classification number: G01D11/28 ,  B60K37/02 ,  B60K2350/203 ,  G01D13/28 ,  Y10S116/05 ,  Y10S116/36

Abstract: A gauge of a vehicle instrument cluster includes a dial having indicia thereon. A pointer is rotatably mounted in the instrument cluster and movable to a plurality of positions relative to the dial. A light source is disposed in the gauge and adapted to direct light in a first direction. A light diverting member is disposed adjacent to the light source and receives light from the light source. The light diverting member includes a first and a second light exit areas. The first light exit area is adapted to direct a first portion of the light generally away from the dial. The second light exit area is adapted to direct a second portion of the light generally toward the dial.

Abstract translation: 车辆仪表盘的量规包括其上具有标记的表盘。 指针可旋转地安装在仪表盘中并可相对于表盘移动到多个位置。 光源设置在量规中并适于沿第一方向引导光。 光转向构件邻近光源设置并接收来自光源的光。 光转向构件包括第一和第二光出射区域。 第一光出射区域适于将光的第一部分通常远离表盘引导。 第二光出射区域适于将光的第二部分大致朝向表盘引导。

公开(公告)号：USD248982S

公开(公告)日：1978-08-15

申请号：US734982

申请日：1976-10-22

Applicant: David M. Cook

Designer： David M. Cook

公开(公告)号：USD252636S

公开(公告)日：1979-08-14

申请号：US814779

申请日：1977-07-11

Applicant: David M. Cook

Designer： David M. Cook

公开(公告)号：US4102987A

公开(公告)日：1978-07-25

申请号：US789311

申请日：1977-04-20

Applicant: David M. Cook ,  Douglas C. Gustafson

Inventor： David M. Cook ,  Douglas C. Gustafson

IPC: C01B17/45 ,  C01B7/24

CPC classification number: C01B17/4576 ,  C01B17/4561

Abstract: A product mixture resulting from the reaction of an anhydrous gaseous mixture of sulfur dioxide, chlorine and hydrogen fluoride in the presence of a catalyst is heated at a temperature of at least about 35.degree. C. under pressures up to about 65 psi to effect substantial conversion of undesired free chlorine in the resulting product mixture to sulfuryl chlorofluoride. The conversion of free chlorine to sulfuryl chlorofluoride allows the use of a completely anhydrous process from which uncontaminated sulfuryl fluoride and sulfuryl chlorofluoride products can readily be obtained. A method for the production of sulfuryl chlorofluoride from said gaseous mixture is also provided.

Abstract translation: 在催化剂存在下由二氧化硫，氯和氟化氢的无水气体混合物反应产生的产物混合物在至多约35℃的温度下加压至高达约65psi，以实现显着的转化 将所得产物混合物中的不需要的游离氯加到磺酰氯氟化物中。 游离氯转化为氟化磺酰氯允许使用完全无水的方法，可以容易地获得未被污染的硫酰氟和磺酰氯氟化物产物。 还提供了用于从所述气体混合物制备磺酰氯的方法。