公开(公告)号：US07450282B2

公开(公告)日：2008-11-11

申请号：US11423328

申请日：2006-06-09

申请人： Jeremy G. Dunne

发明人： Jeremy G. Dunne

IPC分类号： G03H1/00

CPC分类号： G01S7/4813 ,  G01C3/08 ,  G01S7/481 ,  G01S7/51

摘要： A high precision, high performance optical system and beam pathway design for laser-based distance measuring, or range-finding, devices includes an etched, or etched and filled, aiming reticle in the image plane which does not require daytime use illumination, and only minimal auxiliary illumination during nighttime operation, thereby conserving available battery power. In a preferred embodiment, a low power consuming back-lit liquid crystal display provides high contrast distance or other operational information to a user superimposed upon a black-appearing field stop thereby further providing operational power savings.

摘要翻译： 用于基于激光的距离测量或测距装置的高精度，高性能光学系统和光束路径设计包括在图像平面中的蚀刻或蚀刻和填充的瞄准光罩，其不需要白天使用照明，并且仅仅 夜间操作时辅助照明最小，从而节省可用的电池电量。 在优选实施例中，低功耗背光液晶显示器向叠加在黑色出现的场停止上的用户提供高对比度距离或其他操作信息，从而进一步提供操作功率节省。

公开(公告)号：US07349073B2

公开(公告)日：2008-03-25

申请号：US10922572

申请日：2004-08-20

申请人： Jeremy G. Dunne

发明人： Jeremy G. Dunne

IPC分类号： G01C3/08

CPC分类号： G02B27/1066 ,  G01C15/002 ,  G01S7/4811 ,  G01S7/4813 ,  G02B23/105

摘要： An efficient optical system and beam transmission and reception pathway design of particular applicability in the implementation of a cost effective, compact laser-based range-finding instrument. The design is one in which the visual pathway may be made coincident with either the laser transmission or laser reception pathway and may conveniently be implemented in conjunction with a low cost liquid crystal display (LCD) aiming reticle and head up (HUD) information display or in conjunction with a light emitting diode (LED) element. In accordance with the present invention, relatively inexpensive plate mirrors may be used to replace more conventional and costly prism-based implementations.

摘要翻译： 一种高效的光学系统和光束传输和接收路径设计，特别适用于实现成本有效，紧凑的基于激光的测距仪器。 该设计是可以使视觉路径与激光传输或激光接收通道一致的设计，并且可以方便地与瞄准标线和头部（HUD）信息显示器的低成本液晶显示器（LCD）结合使用， 结合发光二极管（LED）元件。 根据本发明，可以使用相对便宜的平板反射镜来代替更传统和昂贵的基于棱镜的实现。

公开(公告)号：US06738148B2

公开(公告)日：2004-05-18

申请号：US09883677

申请日：2001-06-18

申请人： Jeremy G. Dunne ,  William R. Carr

发明人： Jeremy G. Dunne ,  William R. Carr

IPC分类号： G01B1102

CPC分类号： G01B5/0035 ,  G01B11/08

摘要： An upper stem diameter measurement (“USDM”) and basal area determination device for timber cruising operations incorporates a viewing window in which are projected variable, visual brackets for manual alignment by the user, or automatic setting under processor section control, with the left and right sides of a target tree stem or trunk. The device further includes a built-in inclinometer such that computations of height and stem diameter can be automatically adjusted depending on the user's line of sight with respect to a horizontal plane. In a preferred embodiment, a user actuatable keypad is provided for inputting data, such as a desired operational mode, a specified basal area factor and the like, a user viewable display as well as control buttons for adjusting the visual brackets and indicating an acceptance of various of the device parameters and operational characteristics.

摘要翻译： 用于木材巡航操作的上杆直径测量（“USDM”）和基准面积确定装置包括观察窗口，其中是投影可变的，用户手动对准的视觉支架或处理器部分控制下的自动设置，左侧和 目标树干或树干的右侧。 该装置还包括内置倾斜计，使得可以根据用户相对于水平面的视线来自动调整高度和茎直径的计算。 在优选实施例中，提供用户可启动键盘，用于输入诸如期望的操作模式，指定的基准面积因子等的数据，用户可视显示器以及用于调整视觉括号并指示接受 各种设备参数及操作特点。

公开(公告)号：US06445444B1

公开(公告)日：2002-09-03

申请号：US09770853

申请日：2001-01-26

申请人： Jeremy G. Dunne

发明人： Jeremy G. Dunne

IPC分类号： G01C308

摘要： A highly precise range measurement instrument is made possible through the use of a novel and efficient precision timing circuit which makes use of the instruments internal central processing unit crystal oscillator. A multi-point calibration function includes the determination of a “zero” value and a “cal” value through the addition of a known calibrated pulse width thereby providing the origin and scale for determining distance with the constant linear discharge of capacitor.

公开(公告)号：US06377186B1

公开(公告)日：2002-04-23

申请号：US09552537

申请日：2000-04-19

申请人： Jeremy G. Dunne ,  Patrick J. Delohery

发明人： Jeremy G. Dunne ,  Patrick J. Delohery

IPC分类号： G08B2100

CPC分类号： B66C13/46

摘要： A sensor for determining the position of a movable object along a selected axis. The system includes a target positioned at a location aligned with the selected axis. An optical energy emitter is mounted on the movable object and has a beam dispersion greater than two degrees directed at the target. An optical energy receiver is mounted on the movable object and aligned to receive optical energy reflected by the target. The optical energy detector generates a receive signal indicating reception of the optical energy. A time of flight circuit coupled to the emitter and receiver generates a flight time signal indicating the elapsed time from emission of the optical energy to reception of reflected optical energy. A control circuit monitors the flight time signal and outputs a position signal indicating position of the movable object with respect to the target.

摘要翻译： 用于确定可移动物体沿选定轴线的位置的传感器。 该系统包括位于与选定轴对准的位置的目标。 光学能量发射器安装在可移动物体上，并且具有大于两度的光束偏离，指向目标。 光学能量接收器安装在可移动物体上并对准以接收目标反射的光能。 光能检测器产生指示接收光能的接收信号。 耦合到发射器和接收器的飞行时间电路产生指示从发射光能到接收反射光能的经过时间的飞行时间信号。 控制电路监视飞行时间信号并输出​​指示可移动物体相对于目标的位置的位置信号。

公开(公告)号：US06282803B1

公开(公告)日：2001-09-04

申请号：US09065873

申请日：1998-04-24

申请人： Jeremy G. Dunne

发明人： Jeremy G. Dunne

IPC分类号： G01C1730

CPC分类号： G01C17/38

摘要： A self calibrating zero compensation circuit for a fluxgate compass comprising a toroidal core; a drive winding coupled to said core, and at least one and preferably two secondary sensing windings coupled to said core comprises a continuously operating demodulator coupled to the sensing windings and an intermittently operated drive signal fed to the drive winding. A microprocessor is coupled to the demodulator output through an analog to digital converter. The microprocessor provides alternatingly to the drive winding a drive signal for a first period of time and prevents transmission of the drive signal for a second, preferably equal period of time. During the second period of time, the sensing windings and the demodulator provide an output signal to said microprocessor representing the zero signal reference. The demodulator output during the first period of time represents the magnetic field signal from the compass. The output signal during the second period of time is used by the microprocessor as a zero reference or base for processing the demodulated output signal during the first period of time to self correct for drift and internal changes within the compass sensor over time.

摘要翻译： 用于包括环形铁芯的磁通门罗盘的自校准零补偿电路; 耦合到所述芯的驱动绕组以及耦合到所述芯的至少一个并且优选地两个次级感测绕组包括耦合到感测绕组的连续工作的解调器和馈送到驱动绕组的间歇操作的驱动信号。 微处理器通过模数转换器耦合到解调器输出端。 微处理器交替地向驱动绕组提供驱动信号第一时间段，并且防止驱动信号传输第二次，优选地等同的时间段。 在第二时段期间，感测绕组和解调器向所述微处理器提供表示零信号参考的输出信号。 在第一时间段期间的解调器输出表示来自罗盘的磁场信号。 第二时间段期间的输出信号由微处理器用作零参考或基准，用于在第一时间段内对解调的输出信号进行处理，以自动校正罗经传感器内随时间的漂移和内部变化。

公开(公告)号：US06226077B1

公开(公告)日：2001-05-01

申请号：US09513596

申请日：2000-02-25

申请人： Jeremy G. Dunne

发明人： Jeremy G. Dunne

IPC分类号： G01C308

CPC分类号： G01S7/497 ,  G01C3/08 ,  G01S7/483 ,  G01S17/10 ,  G01S17/105 ,  G04F10/10 ,  G04F10/105

摘要： A highly precise range measurement instrument is made possible through the use of a novel and efficient precision timing circuit which makes use of the instrument's internal central processing unit crystal oscillator. A multi-point calibration function includes the determination of a “zero” value and a “cal” value through the addition of a known calibrated pulse width thereby providing the origin and scale for determining distance with the constant linear discharge of capacitor.

摘要翻译： 通过使用一种新颖高效的精密定时电路，可以实现高精度量程测量仪器，该电路利用了仪器的内部中央处理单元晶体振荡器。 多点校准功能包括通过添加已知的校准脉冲宽度来确定“零”值和“校准”值，从而提供用于确定电容器的恒定线性放电距离的原点和标尺。

公开(公告)号：US6144308A

公开(公告)日：2000-11-07

申请号：US72286

申请日：1998-05-04

申请人： Jeremy G. Dunne

发明人： Jeremy G. Dunne

IPC分类号： G01C9/20 ,  G01C15/00 ,  G08B21/00

CPC分类号： G01C15/00 ,  G01C9/20

摘要： A tilt compensation method, circuit and apparatus utilizes a two axis tilt sensor or two single axis tilt sensors for alerting, a user and/or compensating a surveying instrument for off vertical alignment above a reference point when the instrument support is free to move about the reference point, e.g., when mounted on a monopod support. The sensor comprises a cell having a central electrode and four peripheral electrodes spaced 90 degrees apart around the central electrode. Fluid in the cell chamber changes the conductance of the electrodes with reference to the central electrode. The cell is mounted to the support or to the instrument itself. A microprocessor preferably provides a square wave drive signal selectively to alternate pairs of the opposing electrodes through tristate buffers while at the same time the microprocessor provides a channel select signal to the gate of the tristate buffers to float the idle electrodes. The signal on the central electrode is fed to an ADC and then to the microprocessor. The microprocessor preferably produces an alarm signal if the tilt is more than a user determined value. The microprocessor may use the sensed tilt magnitude and direction to automatically calculate corrections and compensate the distance measurement made by the distance measuring device such as a laser range finder for the off vertical orientation of the range finder.

摘要翻译： 倾斜补偿方法，电路和装置利用双轴倾斜传感器或两个单轴倾斜传感器进行报警，用户和/或补偿测量仪器，用于在仪器支架自由移动 参考点，例如，当安装在独脚架支架上时。 传感器包括具有中心电极和围绕中心电极间隔开90度的四个外围电极的电池。 电池室中的流体相对于中心电极改变电极的电导。 电池被安装到支架或仪器本身。 微处理器优选地通过三态缓冲器选择性地提供方向对的相对电极的方波驱动信号，同时微处理器向三态缓冲器的栅极提供通道选择信号以使空闲电极浮动。 中心电极上的信号被馈送到ADC，然后馈送到微处理器。 如果倾斜大于用户确定的值，则微处理器优选地产生报警信号。 微处理器可以使用所感测的倾斜幅度和方向来自动计算校正，并补偿距离测量装置例如激光测距仪对测距仪的垂直取向进行的距离测量。

公开(公告)号：US6064330A

公开(公告)日：2000-05-16

申请号：US072565

申请日：1998-05-05

申请人： Scott Elliott ,  Eric A. Miller ,  Jeremy G. Dunne

发明人： Scott Elliott ,  Eric A. Miller ,  Jeremy G. Dunne

IPC分类号： G01S7/00 ,  G01S13/60 ,  G01S13/86 ,  G01S13/87 ,  G01S13/93 ,  G01S17/10

CPC分类号： G01S13/60 ,  G01S13/865 ,  G01S13/874 ,  G01S13/9307 ,  G01S17/10 ,  G01S17/107 ,  G01S7/003

摘要： An apparatus and method for accurately determining a target distance in adverse weather conditions utilizing both LASER and RADAR is disclosed. The radar signals are used to determine an approximate range which is then used as a gating window for the determination of which laser reflection is from the actual target as opposed to a reflection from the atmospheric interference. The method basically comprises the steps of initiating a radar pulse in the direction of a target and receiving a reflection, transmitting a laser signal and receiving a plurality of reflections, determining an approximate range based on the radar signals, and using this approximate range to ascertain which of the laser reflections is from the target. This determination is preferably made by generating a gating signal and gate width from the radar signals and passing the set of laser range signals through the gate to eliminate the false signals and select the signal that survives the gate as the accurate target range.

摘要翻译： 公开了一种使用激光雷达和雷达雷达来精确地确定恶劣天气条件下的目标距离的装置和方法。 雷达信号用于确定近似范围，然后将其用作确定来自实际目标的激光反射的门控窗口，而不是来自大气干扰的反射。 该方法基本上包括以下步骤：在目标方向发射雷达脉冲并接收反射，发射激光信号并接收多个反射，基于雷达信号确定近似范围，并使用该近似范围确定 哪个激光反射来自目标。 该确定优选通过从雷达信号产生门控信号和门宽度并且将激光范围信号集合通过门来进行，以消除假信号，并选择作为准确目标范围的门的信号。

公开(公告)号：US6055490A

公开(公告)日：2000-04-25

申请号：US123054

申请日：1998-07-27

申请人： Jeremy G. Dunne

发明人： Jeremy G. Dunne

IPC分类号： G01S7/497 ,  G01S17/88 ,  G01S13/86

CPC分类号： G01S17/88 ,  G01S7/497

摘要： An apparatus and method for measuring coefficients of retroreflectance of retroreflective surfaces such as road signs involves use of a modified light based range finder. The apparatus includes a power attenuation factor data base which relates pulse width of received pulses to power attenuation of the transmitted pulses. The range finder calculates target range based on time of flight of light pulses. The apparatus automatically calculates the absolute coefficient of retroreflectance for an unknown reflective surface being measured by comparison of the measurement to a reading with the same instrument of a known reflectance standard. The method involves either recalling a stored standard reference reflectance factor or determining a reflectance factor via the range finder for a sample of retroreflective material with a predetermined coefficient of retroreflectance, and then measuring the distance to an unknown target, determining a power attenuation factor from the received pulse width from the unknown target and then calculating the absolute coefficient of retroreflectance based upon these determined values of power attenuation factor, distance and the reference reflectance factor.

摘要翻译： 用于测量诸如道路标志的回射表面的后向反射系数的装置和方法涉及使用经修改的基于光的测距仪。 该装置包括功率衰减因子数据库，其将接收到的脉冲的脉冲宽度与所发射的脉冲的功率衰减相关联。 测距仪根据光脉冲的飞行时间计算目标范围。 该装置通过使用已知反射率标准的相同仪器将测量值与读数进行比较，自动计算所测量的未知反射面的反射率的绝对系数。 该方法涉及召回存储的标准参考反射系数或通过测距仪确定具有预定反向回射系数的回射材料样品的反射系数，然后测量到未知目标的距离，从 从未知目标接收到的脉冲宽度，然后基于功率衰减因子，距离和参考反射系数的这些确定值来计算反射率的绝对系数。