Correlated noise and spurious signal reduction
    71.
    发明授权
    Correlated noise and spurious signal reduction 有权
    相关噪声和杂散信号减少

    公开(公告)号:US07619548B1

    公开(公告)日:2009-11-17

    申请号:US12143637

    申请日:2008-06-20

    IPC分类号: H03M1/06

    摘要: Error introduced by analog to digital conversion of a set of laser pulses can be reduced by shifting the clock reference time associated with the firing of the laser pulse. A timing offset module shifts the timing reference of each laser pulse. Digital codes generated by the ADC from the received signals are realigned and summed eliminating systematic error introduced by clock driven operations of the ADC. A comparison of the total ADC output of detected laser pulses over a select number of clock intervals enables a return signal to be distinguishable over the systematic error.

    摘要翻译: 可以通过移动与激光脉冲的点火相关联的时钟参考时间来减少由一组激光脉冲的模数转换引起的误差。 定时偏移模块移动每个激光脉冲的定时参考。 由ADC从接收信号产生的数字代码被重新对齐并相加,消除了由ADC的时钟驱动操作引入的系统误差。 在选定数量的时钟间隔上比较检测到的激光脉冲的总ADC输出使得返回信号可以在系统误差上区分开。

    HIGH PRECISION OPTICAL SYSTEM AND BEAM PATHWAY DESIGN FOR A LASER-BASED DISTANCE MEASURING DEVICE
    72.
    发明申请
    HIGH PRECISION OPTICAL SYSTEM AND BEAM PATHWAY DESIGN FOR A LASER-BASED DISTANCE MEASURING DEVICE 有权
    基于激光的距离测量装置的高精度光学系统和光束路径设计

    公开(公告)号:US20060285233A1

    公开(公告)日:2006-12-21

    申请号:US11423328

    申请日:2006-06-09

    申请人: Jeremy Dunne

    发明人: Jeremy Dunne

    IPC分类号: G01C3/08 G02B5/04 G02B23/00

    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。

    Laser bow sight apparatus
    73.
    发明授权
    Laser bow sight apparatus 失效
    激光弓瞄准器

    公开(公告)号:US6073352A

    公开(公告)日:2000-06-13

    申请号:US44447

    申请日:1998-03-19

    摘要: A laser rangefinder bow sight adapted for use preferably with a conventional multi-pin bow sight having a frame and a plurality of sighting pins adjustably positioned on said frame. The laser rangefinder has a housing removably fastened to the bow sight frame. The housing supports a laser transmit section, a laser receive section, a precision timing section and a central processing unit (CPU) for measuring distance to a target coupled to an LCD display. The CPU also provides outputs to a plurality of range window indicator lights which are preferably LEDs. The indicator lights may be externally mounted to the bow sight pins or mounted within the rangefinder housing. In the latter case, a plurality of optical fibers are connected to the distance window lights in the housing. Each of the sighting pins is optically coupled to a separate one of the plurality of distance window lights via one of the optical fibers. The rangefinder is actuated via a remote trigger switch connected through the power supply in the housing to each of the sections. When the rangefinder is triggered, the CPU determines the target distance and activates one or more of the distance window LEDs for the range window or windows closest to the measured distance. Light is then transmitted via the optical fibers to the sighting pins, thus illuminating the one or two sighting pins corresponding to the measured distance. The display is held for a predetermined period of time or until the archer actuates the remote switch to take another distance measurement.

    摘要翻译: 一种激光测距仪弓形瞄准器,其优选地适用于具有可调节地定位在所述框架上的框架和多个瞄准杆的常规多针弓形瞄准镜。 激光测距仪具有可拆卸地紧固到弓形瞄准镜的壳体。 壳体支撑激光发射部分,激光接收部分,精密定时部分和用于测量到与LCD显示器耦合的目标的距离的中央处理单元(CPU)。 CPU还向多个范围窗口指示灯提供输出,优选地是LED。 指示灯可以外部安装到弓形瞄准镜或安装在测距仪外壳内。 在后一种情况下,多个光纤连接到壳体中的距离窗灯。 每个瞄准杆经由光纤之一光学耦合到多个距离窗灯中的单独的一个。 测距仪通过远程触发开关启动,通过外壳中的电源连接到每个部分。 当测距仪被触发时,CPU确定目标距离,激活距离测量距离最近的量程窗口或窗口的一个或多个距离窗口LED。 然后光经由光纤传输到瞄准销,从而照亮与测量距离对应的一个或两个瞄准销。 显示器被保持预定的时间段,或者直到弓箭手驱动远程开关以进行另外的距离测量。

    Laser based speed and accident reconstruction measuring apparatus and
method
    75.
    发明授权
    Laser based speed and accident reconstruction measuring apparatus and method 失效
    基于激光的速度和事故重建测量装置及方法

    公开(公告)号:US5806020A

    公开(公告)日:1998-09-08

    申请号:US843577

    申请日:1997-04-16

    申请人: Blair J. Zykan

    发明人: Blair J. Zykan

    摘要: An apparatus is disclosed for determining, in a first speed mode of operation, speed and range of a moving object and, in a second survey mode of operation, determining direct distances to an object and automatically calculate horizontal and vertical component distances to the object. Also disclosed is a system and method for data entry and retroactive reconstruction of the relative position of features and objects, in particular with respect to scenes such as transitory occurrences, utilizing a signal transmitting and receiving speed, distance and tilt angle determining apparatus or device. In a particular embodiment, the apparatus disclosed has especial applicability to tactical situation use by law enforcement personnel and the system and method in the on-scene recordation and subsequent ex post facto reconstruction of crime and traffic accident scenes by law enforcement officers. The system and method may be readily and efficiently implemented in conjunction with a laser-based speed, distance and tilt angle determining device otherwise usable for vehicle speed traffic monitoring functions utilizing either triangulation or baseline/offset mensuration techniques.

    摘要翻译: 公开了一种用于在第一速度操作模式中确定移动物体的速度和范围的装置,并且在第二测量操作模式中,确定到物体的直接距离并自动计算到物体的水平和垂直分量距离。 还公开了一种用于数据输入和特征和对象的相对位置的追溯重建的系统和方法,特别是关于诸如暂时发生的场景,利用信号发送和接收速度,距离和倾斜角度确定装置或设备。 在具体实施例中,所公开的装置特别适用于执法人员的战术情况,以及执法人员在现场记录和事后重组犯罪和交通事故现场的系统和方法。 该系统和方法可以结合基于激光的速度,距离和倾斜角度确定装置而容易且有效地实现,该装置可用于使用三角测量或基线/偏移测量技术的车辆速度交通监控功能。

    Fog piercing ranging apparatus and method

    公开(公告)号:US5781147A

    公开(公告)日:1998-07-14

    申请号:US853609

    申请日:1997-05-09

    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.

    Voltage conversion circuit for a laser based distance measurement and
ranging instrument
    77.
    发明授权
    Voltage conversion circuit for a laser based distance measurement and ranging instrument 失效
    用于基于激光的距离测量和测距仪的电压转换电路

    公开(公告)号:US5780999A

    公开(公告)日:1998-07-14

    申请号:US702366

    申请日:1996-08-23

    申请人: Jeremy G. Dunne

    发明人: Jeremy G. Dunne

    IPC分类号: H02M3/155 G05F1/10

    CPC分类号: H02M3/155

    摘要: A voltage conversion circuit for transforming an input voltage level at an input voltage node to a relatively higher output voltage level at an output voltage node with respect to a common reference voltage node includes an inductor coupling the input voltage node to the output voltage node and a signal source, such as a linear timer integrated circuit ("IC") supplying an output signal having alternating first and second states thereof. A bipolar switch having first and second current carrying terminals and a control terminal thereof has its first current carrying terminal coupled to the output voltage node and its control terminal coupled to receive the output signal from the signal source. An MOS switch having first and second voltage carrying terminals and a gate terminal thereof, has its first voltage carrying terminal coupled to the common reference voltage node, its second voltage carrying terminal coupled to the second current carrying terminal of the bipolar switch and its gate terminal coupled to receive the output signal from the signal source. At least one diode couples the control terminal of the bipolar switch to the reference voltage node.

    摘要翻译: 用于将输入电压节点处的输入电压电平相对于公共参考电压节点在输出电压节点处相对较高的输出电压电平变换的电压转换电路包括将输入电压节点耦合到输出电压节点的电感器和 信号源,例如提供具有交替的第一和第二状态的输出信号的线性定时器集成电路(“IC”)。 具有第一和第二载流端子及其控制端子的双极开关具有耦合到输出电压节点的第一载流端子及其控制端子,以接收来自信号源的输出信号。 具有第一和第二电压承载端子及其栅极端子的MOS开关具有耦合到公共参考电压节点的第一电压承载端子,其第二电压承载端子耦合到双极开关的第二载流端子及其栅极端子 耦合以从信号源接收输出信号。 至少一个二极管将双极开关的控制端耦合到参考电压节点。

    System and method for reconstruction of the position of objects
utilizing a signal transmitting and receiving distance determining
device
    78.
    发明授权
    System and method for reconstruction of the position of objects utilizing a signal transmitting and receiving distance determining device 失效
    利用信号发射和接收距离确定装置重建物体位置的系统和方法

    公开(公告)号:US5696705A

    公开(公告)日:1997-12-09

    申请号:US520651

    申请日:1995-08-29

    申请人: Blair J. Zykan

    发明人: Blair J. Zykan

    摘要: A system and method for data entry and retroactive reconstruction of the relative position of features and objects, in particular with respect to scenes such as transitory occurrences, utilizing a signal transmitting and receiving distance determining device. In a particular embodiment, the system and method disclosed has especial applicability to the on-scene recordation and subsequent ex post facto reconstruction of traffic accident scenes by law enforcement officers and may be readily and efficiently implemented in conjunction with a commercially available laser-based speed and distance determining device otherwise usable for vehicle speed traffic monitoring functions utilizing either triangulation or baseline/offset mensuration techniques.

    摘要翻译: 一种用于数据输入和追溯重建特征和对象的相对位置的系统和方法,特别是关于诸如暂时发生的场景,利用信号发射和接收距离确定装置。 在一个具体实施例中,所公开的系统和方法特别适用于执法人员的现场记录和事后事后重建交通事故场景,并且可以与市售的基于激光的速度 以及距离确定装置,其可用于利用三角测量或基线/偏移测量技术的车辆速度交通监控功能。

    Automatic noise threshold determining circuit and method for a laser
range finder
    79.
    发明授权
    Automatic noise threshold determining circuit and method for a laser range finder 失效
    用于激光测距仪的自动噪声阈值确定电路和方法

    公开(公告)号:US5612779A

    公开(公告)日:1997-03-18

    申请号:US375810

    申请日:1995-01-19

    申请人: Jeremy G. Dunne

    发明人: Jeremy G. Dunne

    摘要: An automatic noise threshold circuit and method automatically sets an operating threshold for a signal receiving section of a laser pulse transmitting device such that a constant noise pulse firing rate is output from a detector to provide maximum return signal sensitivity and enable detection of the weakest possible laser pulse in order to obtain maximum performance out of a laser range finder. The circuit sets the noise pulse rate at that point at which, in conjunction with a firmware based process, the actual return signals from the target can be discrimintated from the accompanying noise.

    摘要翻译: 自动噪声阈值电路和方法自动设置激光脉冲发射装置的信号接收部分的操作阈值,使得从检测器输出恒定的噪声脉冲发射速率以提供最大的返回信号灵敏度,并且能够检测最弱的可能激光 脉冲,以获得激光测距仪的最大性能。 该电路设置在该点处的噪声脉冲率,其中结合基于固件的处理,来自目标的实际返回信号可以与伴随的噪声区分开。

    Dental laser apparatus and method for ablating non-metallic dental
material from a tooth
    80.
    发明授权
    Dental laser apparatus and method for ablating non-metallic dental material from a tooth 失效
    一种用于从牙齿上烧蚀非金属牙科材料的牙科激光设备和方法

    公开(公告)号:US5554029A

    公开(公告)日:1996-09-10

    申请号:US251135

    申请日:1994-05-31

    CPC分类号: A61C1/0046 A61B2018/2025

    摘要: A method of ablating non-metallic dental material from a tooth comprises the steps of generating radiation pulses having a predetermined wavelength, energy level, pulse repetition rate, and duration, and applying the radiation pulses to the non-metallic dental material in a tooth, whereby the non-metallic dental material is ablated from the tooth. The radiation may be generated by a frequency tripled Nd:YAG, an Er:YAG laser or an Er:YsGG laser and may have a wavelength of about 355 nanometers, 2.94 micrometers, and 2.79 micrometers respectively, for example.

    摘要翻译: 从牙齿消融非金属牙科材料的方法包括以下步骤:产生具有预定波长,能级,脉冲重复率和持续时间的辐射脉冲,以及将辐射脉冲施加到牙齿中的非金属牙科材料, 从而使非金属牙科材料从牙齿上烧蚀。 辐射可以由频率三倍的Nd:YAG,Er:YAG激光器或Er:YsGG激光器产生,并且可以分别具有例如约355纳米,2.94微米和2.79微米的波长。