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1. 发明授权

US4754260A Method of and apparatus for reducing quantizing noise in analog to digital converters 失效
标题翻译：降低模数转换器中量化噪声的方法和装置
公开(公告)号：US4754260A
公开(公告)日：1988-06-28
申请号：US78289
申请日：1987-07-27
申请人： Robert G. Nelson , Thomas F. Crandell
发明人： Robert G. Nelson , Thomas F. Crandell
IPC分类号： H03M1/06
CPC分类号： H03M1/0836 , H03M1/64
摘要： A system with improved signal-to-noise ratio for digitizing a representation of an analog condition comprises two oscillators for generating high frequency digital pulse signals, the frequencies of which are harmonically related one to the other. One of the oscillators responds to the analog condition to cause a shift in phase in its digital signal to cause phase differences between the digital pulse signals. The phase differences include quantizing errors having energy from D.C. to one half the frequency of said digital signals. A phase detector detects the phase differences. The detected phase differences are applied to a low-pass filter to produce a signal representative of phase error in a frequency band of interest. A phase modulator modulates the phase shifted digital signal in response to said signal representative of phase error to enhance the phase difference in said frequency band of interest. The phase modulated digital signal is compared with the other digital signal by a D flipflop to obtain a measure of the phase shift. The measure of the phase shift utilized to adjust the phase of the digital pulse signals toward an in-phase condition.
摘要翻译：用于数字化模拟条件表示的具有改善的信噪比的系统包括用于产生高频数字脉冲信号的两个振荡器，其频率彼此谐波相关。其中一个振荡器响应于模拟条件，导致其数字信号中的相位偏移，从而导致数字脉冲信号之间的相位差。相位差包括具有从D.C.的能量到所述数字信号的频率的一半的量化误差。相位检测器检测相位差。检测到的相位差被施加到低通滤波器以产生表示感兴趣的频带中的相位误差的信号。相位调制器响应于表示相位误差的所述信号来调制相移的数字信号，以增强所述感兴趣的频带中的相位差。通过D触发器将相位调制数字信号与其他数字信号进行比较，以获得相移的量度。相移的测量用于将数字脉冲信号的相位调整到同相状态。

2. 发明授权

US09686973B2 Methods, apparatus and compositions for abatement of bedbugs 有权
公开(公告)号：US09686973B2
公开(公告)日：2017-06-27
申请号：US12316007
申请日：2008-12-09
申请人： James Nolen , Robert G. Nelson
发明人： James Nolen , Robert G. Nelson
IPC分类号： A01M1/10 , A01M1/02
CPC分类号： A01M1/023 , A01M1/026 , A01M1/103 , Y02A50/374
摘要： The present invention is directed to an apparatus for monitoring or abatement of bedbugs, comprising: a base having a mounting portion and a control portion; a heating source positioned on the mounting portion; two capture channels positioned proximate to the heating source and adjacent to the base and each comprising a sloped portion; a horizontal portion connected to the sloped portion, the horizontal portion having a width ranging from about 8 to about 15 millimeters; and a channel portion connected to the horizontal portion by a curved portion having a radius of curvature ranging from about ⅛th inch to about ½ inch; an insect attractant source positioned on the heating source; a carbon dioxide source attached to the base and capable of emitting carbon dioxide proximate to the heating source, and a control circuit mounted in the control portion and in communication with the heating source and the carbon dioxide source to control operation of the apparatus, wherein the control circuit controls emission of the carbon dioxide and wherein the control circuit controls the heating source to maintain a temperature ranging from 90 to 125° F.

3. 发明授权

US4758821A Methods and apparatus for analog-to-digital conversion 失效
标题翻译：用于模数转换的方法和装置
公开(公告)号：US4758821A
公开(公告)日：1988-07-19
申请号：US2513
申请日：1987-01-12
申请人： Robert G. Nelson , Onkar S. Modgil
发明人： Robert G. Nelson , Onkar S. Modgil
IPC分类号： H03M1/06
CPC分类号： H03M1/60
摘要： An analog-digital converter includes a source of high frequency pulses comprising a variable frequency oscillator having an output frequency f which is a function of an analog condition. Also included is a source of a reference signal, preferably pulses, having a fixed frequency whose value is a fraction of the value of the frequency of the variable frequency oscillator. The first named souce also includes a counter-divider to which the output of the variable frequency oscillator is applied. The counter-divider has an output which is either f/N or f/N-M where N and M are whole integers and M is less than N. A phase comparator is responsive to the reference signal and to the output from the counter-divider for measuring the phase difference between the reference signal and the output pulses from the counter-divider. The dividing ratio of the counter-divider is under control of means responsive to the measure of phase difference such that the counter-divider is adjusted to bring the pulses from the counter-divider toward an in-phase relationship with the reference signal as seen at the phase comparator. The selection of the dividing ratio is carried out by a logic means which responds to the output of the variable frequency oscillator and the output of the source of the reference signal to provide for a selection of the counter-divider division ratio for each cycle of the reference signal. The output or measure of phase difference is in the form of a single-bit digital function and this function is applied to a digital low-pass filter to produce a binary word.
摘要翻译：模拟数字转换器包括高频脉冲源，包括具有作为模拟条件的函数的输出频率f的可变频率振荡器。还包括具有固定频率的参考信号的源，优选地是脉冲，其值是可变频率振荡器的频率值的一部分。第一个命名的souce还包括一个反分频器，可变频率振荡器的输出被施加到该分频器上。该分频器具有f / N或f / NM的输出，其中N和M是整数，M小于N.相位比较器响应参考信号和来自反分频器的输出测量参考信号和来自反分频器的输出脉冲之间的相位差。分频器的分频比由响应于相位差测量的装置控制，使得调节分频器以使来自反分频器的脉冲与参考信号成为同相关系，如相位比较器。分频比的选择由对可变频率振荡器的输出和参考信号源的输出作出响应的逻辑装置进行，以提供对于每个周期的分频器分频比的选择参考信号。相位差的输出或测量是单位数字功能的形式，该功能被应用于数字低通滤波器以产生二进制字。

4. 发明授权

US4683456A Methods and apparatus for analog to digital conversion 失效
标题翻译：用于模数转换的方法和装置
公开(公告)号：US4683456A
公开(公告)日：1987-07-28
申请号：US566314
申请日：1983-12-28
申请人： Robert G. Nelson
发明人： Robert G. Nelson
IPC分类号： H03M1/06 , G01P15/08
CPC分类号： H03M1/64
摘要： Methods and apparatus are described for generating a digital representation of an analog condition. In one method high-frequency digital signals are generated with the frequency of each signal being constant and the frequencies bearing a harmonic relationship one to the other. A representation of the analog condition is applied to cause a shift in phase in at least one of the digital signals. The digital signals are then compared to obtain a measure of the phase shift which is utilized to adjust the phase of the phase shifted signal toward its original phase condition. As a result of the measure of phase shift, there is generated a single weighed digital function which is representative of the amplitude of the adjustment utilized to return the phase shifted signal toward its original phase shifted condition. The single weighed digital function is applied to a low-pass digital filter to produce a multi-bit digital word representative of the instantaneous value of the analog condition.Apparatus of invention comprises a pair of oscillators whose frequencies are constant, harmonically related to one another and whose outputs are time spaced digital pulses. An analog condition responsive means has applied thereto the aforesaid pulses to effect a relative phase shift between the digital pulses and a phase comparator measures the relative phase shift. Means are provided responsive to the measure of the relative phase shift to return the digital pulses toward an in-phase relationship, and in so doing, there is produced a single weighed digital function representative of the measure of the relative phase shift.A new and improved geophone is described.
摘要翻译：描述了用于产生模拟条件的数字表示的方法和装置。在一种方法中，产生每个信号的频率恒定的频率数字信号和具有谐波关系的频率彼此。应用模拟条件的表示以在至少一个数字信号中引起相位偏移。然后将数字信号进行比较以获得用于将相移信号的相位调整到其原始相位条件的相移的度量。作为相移测量的结果，产生单个称重的数字功能，其表示用于将相移信号朝向其初始相移条件返回的调整幅度。单个称重数字功能被应用于低通数字滤波器以产生表示模拟条件的瞬时值的多位数字字。本发明的装置包括一对振荡器，其频率恒定，彼此谐波相关，并且其输出是时间间隔的数字脉冲。模拟条件响应装置对其施加上述脉冲以实现数字脉冲之间的相对相移并且相位比较器测量相对相移。响应于相对相移的测量来提供装置以将数字脉冲返回到同相关系，并且在这样做时，产生表示相对相移的量度的单个称重数字函数。描述了一种新的和改进的地震检波器。

5. 发明申请

US20110030267A1 Biting insect trap 审中-公开
标题翻译：咬昆虫陷阱
公开(公告)号：US20110030267A1
公开(公告)日：2011-02-10
申请号：US12660453
申请日：2010-02-26
申请人： James A. Nolen , Robert G. Nelson , Daniel L. Kline
发明人： James A. Nolen , Robert G. Nelson , Daniel L. Kline
IPC分类号： A01M1/08 , A01M1/10
CPC分类号： A01M1/023 , A01M1/06 , A01M2200/012
摘要： The present invention is directed to a biting insect trap, comprising a base; a lower housing attached to the base and including a source of carbon dioxide disposed within the lower housing; a central housing attached to the lower housing and comprising, an induction fan, a fan discharge port, and an insect collection tray; an upper housing attached to the central housing and comprising a heating source disposed around the upper housing portion, the heating source having a heating element arranged in a pattern resembling veins and arteries; one or more insect capture ports, and an emitter disposed to emit carbon dioxide; a source of insect attractant disposed adjacent the heating element, such that the insect attractant is heated by the heating element; and a control panel comprising a controller positioned on the central housing, the controller controlling all the electronic functions of the device, as well as operation of the emitter so as to control emission of the carbon dioxide.
摘要翻译：本发明涉及一种叮咬昆虫捕获器，其包含基底; 附接到所述基座并且包括设置在所述下壳体内的二氧化碳源的下壳体; 附接到下壳体的中央壳体，包括感应风扇，风扇排出口和昆虫收集盘; 附接到所述中央壳体并包括围绕所述上壳体部分设置的加热源的上壳体，所述加热源具有以类似于静脉和动脉的图案布置的加热元件; 一个或多个昆虫捕获端口和设置成排放二氧化碳的发射器; 昆虫引诱剂的来源布置在加热元件附近，使得昆虫引诱剂被加热元件加热; 以及控制面板，其包括位于所述中央壳体上的控制器，所述控制器控制所述设备的所有电子功能以及所述发射器的操作，以便控制二氧化碳的排放。

6. 发明授权

US5521549A Stabilization of closed-loop power controllers 失效
标题翻译：闭环功率控制器的稳定
公开(公告)号：US5521549A
公开(公告)日：1996-05-28
申请号：US277246
申请日：1994-07-19
申请人： Robert G. Nelson
发明人： Robert G. Nelson
IPC分类号： H03F1/08 , H03F3/217 , H03M3/02 , H03F3/38
CPC分类号： H03M3/432 , H03F1/083 , H03F3/217 , H03M3/438
摘要： A closed-loop power control system includes an analog input and an analog output. An analog signal applied to the analog input is summed with an analog signal derived from the analog output to produce a difference signal representative of the polarity of the difference between the analog input signal and the derived analog output signal. A digital signal is produced representative of the polarity of the difference signal. The system includes at least two switching networks, having high energy outputs, and which are responsive to the digital signal to reduce the levels of the difference signal in a frequency band of interest at the source of the digital signals. A low-pass filter is included between the high energy outputs and the means to produce the digital signal to attenuate high frequency noise. The phase lag created by a low-pass passive filter at the output of the high energy outputs is, in one embodiment, reduced by a high-pass filter to maintain stability. Instability that may occur in the presence of large amplitude signals is avoided by the use of a clipping circuit.
摘要翻译：闭环功率控制系统包括模拟输入和模拟输出。施加到模拟输入的模拟信号与从模拟输出导出的模拟信号相加，以产生表示模拟输入信号和导出的模拟输出信号之间的差的极性的差分信号。产生代表差分信号的极性的数字信号。该系统包括具有高能量输出的至少两个开关网络，并且其响应于数字信号以降低在数字信号源处的感兴趣频带中的差信号的电平。高能量输出与产生数字信号的装置之间包括一个低通滤波器来衰减高频噪声。在一个实施例中，在高能量输出的输出处的低通无源滤波器产生的相位滞后通过高通滤波器减小以保持稳定性。在存在大幅度信号的情况下可能发生的不稳定性通过使用限幅电路来避免。

7. 发明授权

US4390161A Winch drive and brake mechanism 失效
标题翻译：绞车驱动和制动机构
公开(公告)号：US4390161A
公开(公告)日：1983-06-28
申请号：US240096
申请日：1981-03-03
申请人： Robert G. Nelson
发明人： Robert G. Nelson
IPC分类号： B66D1/20 , B66D5/14 , B66D1/00
CPC分类号： B66D5/14 , B66D1/20
摘要： A winch drive and brake mechanism is disclosed featuring a load compensating brake. The brake includes a fixed member and first and second rotary brake members. The first and second brake members are coaxially mounted on a drive shaft in alignment with a cable drum. The first brake member is fixed on the drive shaft. The second brake member is supported on the drive shaft between the first brake member and the fixed member for free rotation and movement axially of the drive shaft toward and away from braking engagement with the fixed member. The first brake member is engageable with the second brake member for axially moving it toward the fixed member into brake engaged position and releasing the second brake member for movement axially away from the fixed member toward a brake released position respectively in response to rotation of the first brake member relative to the second brake member in opposite angular directions. The first brake member is continuously urged by cable load on the drum in one angular direction such that when power is interrupted under any conditions, whatsoever, to the drive shaft, the first brake member rotates relative to the second brake member and axially moves it into engagement with the fixed member to automatically effect brake locking engagement under cable load.
摘要翻译：公开了一种具有负载补偿制动器的绞盘驱动和制动机构。制动器包括固定构件和第一和第二旋转制动构件。第一和第二制动构件同轴地安装在与电缆滚筒对准的驱动轴上。第一制动构件固定在驱动轴上。第二制动构件被支撑在第一制动构件和固定构件之间的驱动轴上，用于随着驱动轴的轴向自由旋转并且朝向和远离与固定构件的制动接合而移动。第一制动构件可与第二制动构件接合，用于使其朝向固定构件轴向移动到制动器接合位置，并且分别响应于第一制动构件的旋转而释放第二制动构件以使轴向远离固定构件朝制动器释放位置移动制动构件相对于第二制动构件在相反的角度方向上。第一制动构件通过电缆负载在一个角度方向上被连续地推压在鼓上，使得当在任何条件下，在任何条件下中断动力时，第一制动构件相对于第二制动构件旋转并将其轴向移动到与固定构件接合以在电缆负载下自动实现制动器锁定接合。

8. 外观设计

USD255259S Adjustable fishing pole holder 失效
公开(公告)号：USD255259S
公开(公告)日：1980-06-03
申请号：US857872
申请日：1977-12-05
申请人： Robert G. Nelson
设计人： Robert G. Nelson

9. 发明申请

US20110033514A1 Semiochemical emission device 审中-公开
标题翻译：半化学发光装置
公开(公告)号：US20110033514A1
公开(公告)日：2011-02-10
申请号：US12660452
申请日：2010-02-26
申请人： James A. Nolen , Robert G. Nelson
发明人： James A. Nolen , Robert G. Nelson
IPC分类号： A01N25/34 , A01N59/04 , A01N59/00 , A01N31/02 , A01N37/00
CPC分类号： A01N25/006 , A01N25/04 , A01N25/34 , A01N31/02 , A01N35/06 , A01N37/02 , A01N37/36 , A01N59/00 , A01N59/04
摘要： The present invention is directed to a chemical lure, comprising an enclosed container having a top, the top having one or more orifices; a gel matrix contained within the container, the matrix comprising a active ingredient and a carrier; and a headspace between the gel matrix and the top. The emission rate of the active ingredient from the orifices allows the invention to emit volatilized active ingredient for about 60 days.
摘要翻译：本发明涉及一种化学诱剂，其包括具有顶部的封闭容器，顶部具有一个或多个孔口; 包含在容器内的凝胶基质，所述基质包含活性成分和载体; 以及凝胶基质和顶部之间的顶部空间。来自孔的活性成分的排放率允许本发明发挥挥发的活性成分约60天。

10. 发明授权

US5352986A Closed loop power controller 失效
标题翻译：闭环功率控制器
公开(公告)号：US5352986A
公开(公告)日：1994-10-04
申请号：US7521
申请日：1993-01-22
申请人： Onkar S. Modgil , Robert G. Nelson , Margaret S. Reif
发明人： Onkar S. Modgil , Robert G. Nelson , Margaret S. Reif
IPC分类号： H03F1/08 , H03F3/217 , H03M3/02 , H03F3/38 , H03F1/36
CPC分类号： H03M3/432 , H03F1/083 , H03F3/217 , H03M3/438
摘要： A power controller includes a closed-loop system having a summer to sum an input signal with a derived output signal to produce a difference signal. A comparator compares the difference signal with a reference signal to produce a digital signal representative of the polarity difference between the difference signal and the reference signal. Two switching networks respond to the digital signal to produce high energy outputs representative of the digital signal which are used to reduce the level of the difference signal in a frequency band of interest at the comparator. A low pass filter between the high energy outputs and the comparator attenuates high-frequency noise. A low-pass filter of at least the third order, connected in the closed loop, enhances the signal-to-noise ratio. In a specific application the power controller is a power amplifier and the input signal is in the audio frequency range.
摘要翻译：功率控制器包括具有加法器的闭环系统，用于将输入信号与导出的输出信号相加以产生差分信号。比较器将差信号与参考信号进行比较，以产生表示差分信号和参考信号之间的极性差的数字信号。两个开关网络响应于数字信号以产生代表数字信号的高能量输出，该数字信号用于降低比较器中感兴趣的频带中的差分信号的电平。高能量输出和比较器之间的低通滤波器会衰减高频噪声。连接在闭环中的至少三阶的低通滤波器增强了信噪比。在具体应用中，功率控制器是功率放大器，输入信号处于音频范围。

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