公开(公告)号：US06377037B1

公开(公告)日：2002-04-23

申请号：US08904706

申请日：1997-08-01

Applicant: Gordon R. Burns ,  Javier Adame ,  John T. Voisine ,  John P. Junker ,  Jeff Kotowski ,  Richard D. Davis

Inventor： Gordon R. Burns ,  Javier Adame ,  John T. Voisine ,  John P. Junker ,  Jeff Kotowski ,  Richard D. Davis

IPC: G01R2106

CPC classification number: G01R21/133

Abstract: A watt-hour meter employs a power factor compensation technique that inserts a delay into the digitized current or voltage sample stream. An exemplary embodiment of the present invention includes an electronic watt-hour meter comprising a voltage sensor, a current sensor, a conversion circuit, and a processing circuit: The voltage sensor generates a voltage measurement signal responsive to a voltage provided to a load. Similarly, the current sensor generates a current measurement signal responsive to a current provided to a load. The conversion circuit further comprises: a first converter connected to the voltage sensor for generating sampled voltage data stream based on said voltage measurement signal; a second converter connected to the current sensor for generating a sampled current data stream based on said current measurement signal, and a phase correction circuit. The phase correction circuit is connected to one of the first and second converters and inserts a delay into one of the sampled voltage data stream or the sampled current data stream. The processing circuit is operably connected to the first and second converters, and receives information indicative of the sampled voltage data stream and sampled current data stream subject to any delay inserted by the phase correction circuit. The processing circuit then generates power consumption data from the sampled voltage data and sampled current data.

Abstract translation: 电度表采用功率因数补偿技术，将延迟插入数字化电流或电压采样流。 本发明的一个示例性实施例包括一个包括电压传感器，电流传感器，转换电路和处理电路的电子电度表。电压传感器根据提供给负载的电压产生电压测量信号。 类似地，电流传感器响应于提供给负载的电流产生电流测量信号。 转换电路还包括：连接到电压传感器的第一转换器，用于基于所述电压测量信号产生采样的电压数据流; 连接到电流传感器的第二转换器，用于基于所述电流测量信号产生采样的当前数据流，以及相位校正电路。 相位校正电路连接到第一和第二转换器之一，并将延迟插入采样的电压数据流或采样的当前数据流之一。 处理电路可操作地连接到第一和第二转换器，并且接收指示采样的电压数据流的信息和经相位校正电路插入的任何延迟的采样的当前数据流。 处理电路然后从采样的电压数据和采样的当前数据产生功耗数据。

公开(公告)号：US5561660A

公开(公告)日：1996-10-01

申请号：US416614

申请日：1995-04-05

Applicant: Jeff Kotowski ,  Richard D. Davis

Inventor： Jeff Kotowski ,  Richard D. Davis

IPC: H03F1/30 ,  H03M3/02 ,  H03L7/00

CPC classification number: H03F1/303 ,  H03M3/324 ,  H03M3/34 ,  H03F2200/331 ,  H03M3/356 ,  H03M3/37 ,  H03M3/458

Abstract: The present invention discloses method and apparatus for offset and phase correction in multiplexed delta-sigma modulators. According to the invention, offsets and phases of input signals to multiplexed delta-sigma modulators are corrected by a simple and low cost method. The invention utilizes a novel switching technique during different sampling periods to eliminate the effect of DC offsets present in multiplexed input signals. The invention also uses a delay introduced by a FIFO or a shift register to individually correct for phase shifts present in individual multiplexed input signals. The invention accomplishes these objectives without introducing a significant quantization noise, and without requiring overlapping FIR filters.

Abstract translation: 本发明公开了用于多路复用Δ-Σ调制器中的偏移和相位校正的方法和装置。 根据本发明，通过简单且低成本的方法校正输入信号到多路复用Δ-Σ调制器的偏移和相位。 本发明在不同的采样周期中利用了一种新颖的开关技术来消除多路输入信号中存在的直流偏移的影响。 本发明还使用由FIFO或移位寄存器引入的延迟来单独校正存在于各个复用输入信号中的相移。 本发明实现了这些目标，而不引入显着的量化噪声，并且不需要重叠的FIR滤波器。

公开(公告)号：US5434800A

公开(公告)日：1995-07-18

申请号：US287065

申请日：1994-08-08

Applicant: Richard D. Davis ,  Jeff Kotowski

Inventor： Richard D. Davis ,  Jeff Kotowski

IPC: F02D13/02 ,  F02D45/00 ,  F02P5/15 ,  F02P7/067 ,  F02P7/077 ,  G01D5/244 ,  G01D5/249 ,  G01P3/489 ,  H03M1/28 ,  G01B7/14

CPC classification number: H03M1/28 ,  F02P7/0675 ,  F02P7/0775 ,  G01D5/24409 ,  G01D5/249 ,  G01P3/489 ,  F02D2041/0092

Abstract: A programmable system synchronizes the operation of an electronic angular position indicator with the angular displacement of a rotor. The system can synchronize operation with rotors with non-uniform mark spacing. A sensor provides the system with electronic pulse patterns corresponding to marks on the rotor. Pulse patterns are compared to patterns stored in memory to determine the instantaneous angular position of the rotor. The synchronization system provides the angular position indicator with parameters appropriate to the angular position of the rotor. The system obtains synchronization during initial rotations of the rotor and continually checks synchronization during subsequent rotation.

Abstract translation: 可编程系统使电子角位置指示器的操作与转子的角位移同步。 系统可以与转子同步操作，具有不均匀的标记间距。 传感器为系统提供与转子上的标记对应的电子脉冲图案。 将脉冲模式与存储在存储器中的模式进行比较，以确定转子的瞬时角位置。 同步系统为角位置指示器提供适合转子角位置的参数。 系统在转子的初始转动期间获得同步，并在随后的旋转期间持续检查同步。

公开(公告)号：US5317614A

公开(公告)日：1994-05-31

申请号：US935823

申请日：1992-08-26

Applicant: Richard D. Davis ,  Jeff Kotowski

Inventor： Richard D. Davis ,  Jeff Kotowski

IPC: G01D5/244 ,  G01D5/249 ,  G07C3/02

CPC classification number: G01D5/24404 ,  G01D5/2492

Abstract: A programmable, electronic, angular position indicator, based upon engineering units, estimates the angular displacement of a rotating rotor. The angular position indicator is programmed with the particular arrangement of teeth (or other markings) on the rotor. Intermediate angular displacements are interpolated between a limited number of positive angular displacement indications. Offsets, due to acceleration or deceleration of the rotor, are corrected at each positive angular displacement indication without skipping the output of each interpolated angular displacement. Angular displacement is determined in standard engineering units.

Abstract translation: 基于工程单位的可编程电子角位置指示器估计旋转转子的角位移。 角位置指示器通过转子上的齿（或其他标记）的特定排列来编程。 在有限数量的正角位移指示之间插入中间角位移。 由于转子的加速或减速而导致的偏移量在每个正角度位移指示下被校正，而不跳过每个内插的角位移的输出。 角位移以标准工程单位确定。

公开(公告)号：US08624658B1

公开(公告)日：2014-01-07

申请号：US13561529

申请日：2012-07-30

Applicant: Theron L. Jones ,  Richard D. Davis ,  James Imbornone ,  Xuejin Wang

Inventor： Theron L. Jones ,  Richard D. Davis ,  James Imbornone ,  Xuejin Wang

IPC: G01V3/02

CPC classification number: H03D7/1441 ,  H03D7/1458 ,  H03D2200/0023 ,  H03D2200/0043

Abstract: A frequency mixer having parallel mixer cores is described that is configured to heterodyne a signal. In an implementation, the frequency mixer includes a first mixer core and a second mixer core. A first balun is connected to the first mixer core and configured to furnish a LO signal occurring in a first range of frequencies to the first mixer core. The mixer includes a second balun coupled to the second mixer core, and the second balun is configured to furnish a LO signal occurring in a second range of frequencies during a second time interval. The mixer includes a first biasing voltage source that is center tapped to the first balun and a second biasing voltage source is center tapped to the second balun to further prevent operation of the at least substantially non-operational mixer core.

Abstract translation: 描述了具有并行混频器核的混频器，其被配置为外差信号。 在一个实现中，混频器包括第一混频器核心和第二混频器核心。 第一平衡 - 不平衡转换器连接到第一混频器核心并且被配置为向第一混频器核心提供在第一频率范围内出现的LO信号。 混频器包括耦合到第二混频器核心的第二平衡 - 不平衡变压器，并且第二平衡 - 不平衡变压器被配置为在第二时间间隔期间提供在第二频率范围内出现的LO信号。 混合器包括中心抽头到第一平衡 - 不平衡转换器的第一偏置电压源，并且第二偏压电压源被中心抽头到第二平衡 - 不平衡变换器，以进一步防止至少基本上不可操作的混频器核心的操作。

公开(公告)号：US5277632A

公开(公告)日：1994-01-11

申请号：US18261

申请日：1993-02-16

Applicant: Richard D. Davis

Inventor： Richard D. Davis

IPC: B63H20/34 ,  B63H5/12

CPC classification number: B63H5/165 ,  B63H20/34 ,  Y10T29/49718

Abstract: An outboard motor replacement skeg which is thin and flat and has a cavity formed in one of its edges is disclosed. The replacement skeg is slid over the stub which remains after the original skeg is broken off, and is fastened to the skeg stub with silicone sealant and rivets. As an alternative, the replacement skeg may be part of an original design to replace a specific breakaway skeg having a particular mounting structure.

Abstract translation: 公开了一种薄而扁平的并具有形成在其一个边缘上的空腔的舷外马达更换阀。 更换的skeg在原始skeg断裂后残留的短棒上滑动，并用硅酮密封胶和铆钉固定在skeg短棒上。 作为替代方案，替换塞克可以是原始设计的一部分，以替换具有特定安装结构的特定分离塞。

公开(公告)号：US09002308B1

公开(公告)日：2015-04-07

申请号：US13488267

申请日：2012-06-04

Applicant: Andrew G. Zocher ,  Richard D. Davis ,  Theron L. Jones ,  Luiz A. Razera, Jr. ,  Robert R. Rotzoll

Inventor： Andrew G. Zocher ,  Richard D. Davis ,  Theron L. Jones ,  Luiz A. Razera, Jr. ,  Robert R. Rotzoll

IPC: H04B1/06 ,  H04B7/00 ,  H04B10/60 ,  H04B1/62

CPC classification number: H04N13/398 ,  H03G3/3078 ,  H04B1/62 ,  H04N13/167 ,  H04N13/172 ,  H04N13/332 ,  H04N13/341 ,  H04N2213/008

Abstract: A system is disclosed that may include an Automatic Gain Control (AGC) module configured to automatically adjust the gain of a receiver, which is configured to receive a signal. The signal includes a number of commands, which have a characteristic command length and a characteristic command interval. The command length may have a substantially shorter duration than the command interval. The system may also include a slicer configured to interface to a command processor. The system includes a command processor communicatively coupled with the AGC module and/or the slicer for providing a notification to the AGC module and/or the slicer associated with the ends of the commands. The AGC module is configured to adjust the gain of the receiver and the slicer threshold voltage is updated when the notification is received from the command processor.

Abstract translation: 公开了一种可以包括自动增益控制（AGC）模块的系统，该自动增益控制（AGC）模块被配置为自动调整被配置为接收信号的接收机的增益。 信号包括多个具有特征指令长度和特征指令间隔的命令。 命令长度可以具有比命令间隔更短的持续时间。 系统还可以包括配置成与命令处理器接口的限幅器。 该系统包括与AGC模块和/或限幅器通信耦合的命令处理器，用于向AGC模块和/或与命令的末端相关联的限幅器提供通知。 AGC模块被配置为调整接收机的增益，并且当从命令处理器接收到通知时，限幅器阈值电压被更新。

公开(公告)号：US4997566A

公开(公告)日：1991-03-05

申请号：US457031

申请日：1989-12-26

Applicant: Richard D. Davis

Inventor： Richard D. Davis

IPC: B01D29/05

CPC classification number: B01D29/05

Abstract: A structure placed in a stream of liquids, carrying undissolved solids, that separates the solids from the liquid and disposes of the solids. Two channels or conduits for carrying the liquid are positioned at different elevations and the structure is angularly disposed between the two channels or conduits to interconnect them. The structure includes plural interleaved plate members, one set of which is downwardly inclined at a first angle and a second set of which is downwardly inclined at a second, lesser angle. The solids collect atop the top edges of the plates inclined at the lesser angle as those plates gradually evolve from the other plates along their extent. A conveyor member at the bottom of the lesser inclined plate members carries the collected solids away.

Abstract translation: 放置在液体流中的结构，其携带未溶解的固体，其将固体与液体分离并处置固体。 用于承载液体的两个通道或导管定位在不同的高度处，并且该结构被角度地设置在两个通道或管道之间以将它们互连。 该结构包括多个交错板构件，其一组以第一角度向下倾斜，第二组以第二较小角度向下倾斜。 这些固体收集在倾斜于较小角度的板的顶部边缘上，因为这些板沿着它们的程度从其他板逐渐放出。 位于较小倾斜板构件底部的传送构件将收集的固体带走。

公开(公告)号：US12179946B2

公开(公告)日：2024-12-31

申请号：US18210159

申请日：2023-06-15

Applicant: Richard D. Davis

Inventor： Richard D. Davis

IPC: B64U10/13 ,  A61C17/22 ,  B64U20/87 ,  B64U50/30 ,  B64U101/30

Abstract: Systems and methods for effective brushing and performing activities on a communication device without limiting the person's movement are disclosed. As aspect of the system comprises an electric drone system which provides a platform for placing an electric toothbrush and a communication device. The drone system and the electric toothbrush are connected via a communication network and the drone is operated via the electric toothbrush. The electric toothbrush and the mobile device are also connected via a communication network. The bushing and gaming activities are displayed and operated on the communication device placed on the drone system which moves along the person performing brushing activity with the electric toothbrush.

公开(公告)号：US5551137A

公开(公告)日：1996-09-03

申请号：US355941

申请日：1994-12-12

Applicant: Richard D. Davis

Inventor： Richard D. Davis

IPC: B01D33/04 ,  E02B8/02 ,  B23P6/00 ,  B01D33/056

CPC classification number: E02B8/026 ,  B01D33/04 ,  Y10T29/49716 ,  Y10T29/4984

Abstract: A method for assembling an apparatus that removes solid waste material from a stream of water. The apparatus sits in a channel within which the water containing waste material flows. A plurality of vertically oriented, laterally spaced apart, rotating screens are driven by sprocket segments and provide a filtering function. The screens are formed by plural loops of articulated links. Each link includes a horizontally-extending part that lifts solid matter from the stream as the screens rotate. The assembly method includes placing the links on shafts in a predetermined pattern that creates a frusto-conical space bordered by links. The frusto-conical space provides ample clearance space for each sprocket segment and ensures that the sprocket segments will not rub against the links which in turn prevents the parts of the apparatus from becoming misaligned with respect to one another so that the apparatus may operate for extended periods of time without requiring adjustment.

Abstract translation: 一种用于组装从水流中去除固体废物的装置的方法。 该设备位于含有废水的水流中。 多个垂直取向的横向隔开的旋转筛网由链轮段驱动并提供过滤功能。 屏幕由多个关节连杆的环形成。 每个链接包括水平延伸部分，当屏幕旋转时，该部分从流中提取固体物质。 组装方法包括以预定图案将链节放置在轴上，该预定图案产生由链节邻接的截头圆锥形空间。 截头圆锥形空间为每个链轮段提供充足的间隙空间，并确保链轮段不会摩擦连杆，这又会阻止装置的部件相对于彼此偏移，从而使装置可以延长 一段时间而不需要调整。