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11. 发明授权

US07304609B2 Hybrid wireless ranging system and associated methods 有权
标题翻译：混合无线测距系统及相关方法
公开(公告)号：US07304609B2
公开(公告)日：2007-12-04
申请号：US11090513
申请日：2005-03-25
申请人： Richard D. Roberts
发明人： Richard D. Roberts
IPC分类号： G01S1/24 , G01S13/08 , G01S5/04
CPC分类号： G01S11/02 , G01S11/06 , G01S13/76
摘要： A wireless ranging system includes a first wireless unit and a second wireless unit spaced therefrom. The first wireless unit may include a time-of-arrival (TOA) wireless transmitter, and a near-field electromagnetic (NFE) wireless transmitter having a settable operating frequency. The second wireless unit may include a TOA wireless receiver cooperating with the TOA wireless transmitter, a NFE wireless receiver cooperating with the NFE wireless transmitter, and a ranging processor cooperating with the TOA wireless receiver. The ranging processor may generate a range estimate between the first and second wireless units, and generate an estimated operating frequency for the NFE wireless transmitter based upon the range estimate. The ranging processor may also generate a range window for the TOA wireless receiver via the ranging processor cooperating with the NFE wireless receiver, and use the range window with the TOA wireless receiver to generate a range estimate between the first and second wireless units.
摘要翻译：无线测距系统包括与其间隔开的第一无线单元和第二无线单元。第一无线单元可以包括到达时间（TOA）无线发射机和具有可设置的工作频率的近场电磁（NFE）无线发射机。第二无线单元可以包括与TOA无线发射机协作的TOA无线接收机，与NFE无线发射机协作的NFE无线接收机以及与TOA无线接收机协作的测距处理器。测距处理器可以在第一和第二无线单元之间生成范围估计，并且基于范围估计生成NFE无线发射机的估计工作频率。测距处理器还可以经由与NFE无线接收机协作的测距处理器生成TOA无线接收机的范围窗口，并且使用与TOA无线接收机的范围窗口来产生第一和第二无线单元之间的范围估计。

12. 发明授权

US07042868B2 Method and system for performing ranging functions in an ultrawide bandwidth system 失效
标题翻译：在超宽带宽系统中执行测距功能的方法和系统
公开(公告)号：US07042868B2
公开(公告)日：2006-05-09
申请号：US10383256
申请日：2003-03-07
申请人： Paul R. Runkle , Richard D. Roberts
发明人： Paul R. Runkle , Richard D. Roberts
IPC分类号： H04B7/212
CPC分类号： G01S5/0221 , G01S5/0215 , G01S13/0209 , G01S13/765 , H04B1/7163 , H04B1/7172
摘要： A process is provided for determining the distance between two devices by sending ranging packets between them. The local device sends a first ranging packet, which the remote device sends holds for a first hold time before sending a second ranging packet in return. The local device also sends a third ranging packet, which the remote device sends holds for a second hold time before sending a fourth ranging packet in return. If the second hold time is twice the first hold time, then the propagation time for signals between the two devices can be determined solely by time measurements made by the local device. For received signals, these time measurements can be adjusted to provide accurate time estimates for a direct line of sight signal, which corresponds to a shortest transmission distance between the two devices. The propagation time can then be used to determine distance between the devices.
摘要翻译：提供了一种通过在它们之间发送测距分组来确定两个设备之间的距离的过程。本地设备发送第一测距分组，远程设备在发送第二测距分组之前发送保持第一保持时间。本地设备还发送第三测距分组，远程设备在发送第四测距分组之前发送保持第二保持时间。如果第二保持时间是第一保持时间的两倍，则两个设备之间的信号的传播时间可以仅由本地设备进行的时间测量来确定。对于接收到的信号，可以调整这些时间测量值以便为直接视线信号提供准确的时间估计，其对应于两个装置之间的最短传输距离。然后可以使用传播时间来确定设备之间的距离。

13. 发明授权

US06994078B2 Apparatus for removing contaminants from crankcase emissions 失效
标题翻译：用于从曲轴箱排放物去除污染物的设备
公开(公告)号：US06994078B2
公开(公告)日：2006-02-07
申请号：US11044485
申请日：2005-01-27
申请人： Richard D. Roberts , James R. Brock , Edmund Loughran
发明人： Richard D. Roberts , James R. Brock , Edmund Loughran
IPC分类号： F02B25/06
CPC分类号： F01M13/04 , B01D19/0042 , F01M2013/0427 , F01M2013/0433 , F02M25/06 , Y02T10/121
摘要： A separator for separating liquids in a fluid stream generated by blow-by gases produced in a crankcase of an internal combustion engine wherein the fluid stream includes both gasses and liquids. The separator including an inlet in fluid connection with the engine for receiving the fluid stream and an outlet in fluid connection with the engine to return a gas stream to the engine. The separator further including a fluid path fluidly connecting the inlet to the outlet and a containment vessel in fluid connection with the fluid path. The separator having a fluid stream accelerator in the fluid path and the accelerator accelerating the fluid stream to at least partially separate the gasses from the liquids in the fluid stream. A deflector, which is also in the fluid path between the accelerator and the outlet, changes the direction of the liquid to direct at least part of the liquids in the fluid stream into a containment portion of the vessel and directs the gas stream to the outlet.
摘要翻译：一种用于分离由在内燃机的曲轴箱中产生的窜气产生的流体流中的液体的分离器，其中流体流包括气体和液体。分离器包括与发动机流体连接的用于接收流体流的入口和与发动机流体连接以将气流返回到发动机的出口。分离器还包括将入口流体地连接到出口的流体路径和与流体路径流体连接的容纳容器。所述分离器在流体路径中具有流体流加速器，加速器加速流体流以至少部分地将气体与流体流中的液体分离。也在加速器和出口之间的流体路径中的偏转器改变液体的方向以将流体流中的至少一部分液体引导到容器的容纳部分中，并将气流引导到出口。

14. 发明授权

US06678503B1 Apparatus for radio frequency processing with dual modulus synthesizer 失效
标题翻译：双模合成器射频处理装置
公开(公告)号：US06678503B1
公开(公告)日：2004-01-13
申请号：US09573782
申请日：2000-05-17
申请人： Eric C. Black , Richard D. Roberts
发明人： Eric C. Black , Richard D. Roberts
IPC分类号： H04B140
CPC分类号： H03D7/163 , H03D7/165
摘要： An apparatus for radio frequency processing includes a local oscillator synthesizer circuit having a voltage controlled oscillator that generates an oscillator signal f1. A divide-by-N circuit receives the oscillator circuit f1 and divides that signal to produce an f1/N oscillator signal. A dual modulus synthesizer is connected to the divide-by-N circuit and generates a quadrature modulus signal f1/N. A receiver circuit and a transmitter circuit are operatively connected to the local oscillator synthesizer circuit. Each of the receiver circuits and transmitter circuits has at least two mixer circuits for mixing and respectively down converting/up converting intermediate radio frequency signals. The local oscillator synthesizer provides local oscillation for each of the mixer circuits.
摘要翻译：一种用于射频处理的装置包括具有产生振荡器信号f1的压控振荡器的本地振荡器合成器电路。 N分频电路接收振荡器电路f1并分频该信号以产生f1 / N振荡器信号。双模合成器连接到N分频电路并产生正交模数信号f1 / N。接收机电路和发射机电路可操作地连接到本地振荡器合成器电路。每个接收机电路和发射机电路具有用于混合和分别下变频/上变频中间射频信号的至少两个混频器电路。本地振荡器合成器为每个混频器电路提供本地振荡。

15. 发明授权

US6006071A RF communications system operable in the presence of a repetitive interference source and related methods 失效
标题翻译： RF通信系统在存在重复干扰源和相关方法的情况下可操作
公开(公告)号：US6006071A
公开(公告)日：1999-12-21
申请号：US6071
申请日：1998-01-12
申请人： Richard D. Roberts , George R. Nelson
发明人： Richard D. Roberts , George R. Nelson
IPC分类号： G06F20060101 , H04B20060101 , H04B1/00 , H04B1/10 , H04B7/00 , H04B15/02 , H04B15/04 , H04L1/08 , H04Q7/00
CPC分类号： H04B15/00
摘要： An RF communication system is for operating in the presence of a repetitive RF interference source powered from an Alternating Current (AC) power line. The system uses redundant transmission synchronized to the power line to ensure accurate reception by at least one second device. The RF communication system includes a first device powered from an AC power line which also powers the repetitive RF interference source. The first device, in turn, preferably includes an RF transmitter for transmitting in a frequency band of the repetitive RF interference source, a power line sensor, and a data transmit controller. The data transmit controller generates a plurality of data packets with each data packet including an error detecting portion. The data transmit controller also operates the RF transmitter to produce repetitive first and second transmissions of a same data packet responsive to the power line sensor. Accordingly, at least one of the first and second transmissions occurs during an OFF period of the repetitive RF interference source. The second device also preferably includes a data receive controller for receiving the repetitive first and second transmissions of same data packets and selecting one based upon the error detecting portions thereof to thereby avoid interference from the repetitive RF interference source.
摘要翻译： RF通信系统用于在由交流（AC）电力线供电的重复RF干扰源的存在下操作。该系统使用与电力线同步的冗余传输，以确保至少一个第二设备的准确接收。 RF通信系统包括由交流电源线供电的第一设备，其也为重复RF干扰源供电。第一装置又优选地包括用于在重复RF干扰源的频带中传输的RF发射机，电力线传感器和数据发射控制器。数据发送控制器生成多个数据分组，每个数据分组包括错误检测部分。数据传输控制器还操作RF发射机以响应于电力线传感器产生相同数据分组的重复的第一和第二传输。因此，第一和第二传输中的至少一个发生在重复RF干扰源的OFF周期期间。第二设备还优选地包括数据接收控制器，用于接收相同数据分组的重复的第一和第二传输，并且基于其错误检测部分来选择一个，从而避免来自重复RF干扰源的干扰。

16. 发明授权

US5425052A High impedance directional signal separator for extracting and separating respective signalling components of a wireline full-duplex digital data link 失效
标题翻译：高阻抗定向信号分离器，用于提取和分离有线全双工数字数据链路的各个信令分量
公开(公告)号：US5425052A
公开(公告)日：1995-06-13
申请号：US930728
申请日：1992-08-14
申请人： Mark A. Webster , Richard D. Roberts , Keith R. Baldwin
发明人： Mark A. Webster , Richard D. Roberts , Keith R. Baldwin
IPC分类号： H04B3/23 , H04B3/46
CPC分类号： H04B3/23 , H04L25/0266 , H03H2021/0034
摘要： A wireline bridge tap device and an associated signal processing mechanism are capable of successfully extracting and recovering the respective signalling components of a full-duplex wireline digital data link without having to disturb the link during its use (e.g. as by interrupting service to sever the link in order to install a line coupling device, such as a modem or attenuator pad to signal monitoring equipment). The full-duplex wireline bridge device comprises a signal characteristic monitoring device that is capable of monitoring the link and providing respective output signals representative of the respective unidirectional signal components being transmitted simultaneously in opposite directions along the link. A directional signal separator, comprised of a voltage probe and a current probe, each of which can be coupled to the link without severing the link or otherwise disrupting ongoing communications, couples the signal characteristic monitoring device to the link. The signal processing device is operative to controllably combine the outputs of the voltage and current probes and provides respective output signals that are representative of the desired unidirectional signal components. The communications link may be either a single wire transmission line or a two wire balanced transmission line. In the latter instance individual probes of pairs of voltage and current probes are coupled to respective portions of the two wire balanced transmission line.
摘要翻译：有线线路分接装置和相关联的信号处理机制能够成功地提取和恢复全双工有线数字数据链路的各个信令分量，而不必在其使用期间干扰链路（例如，通过中断服务来切断链路以便安装诸如调制解调器或衰减器垫的线耦合装置来信号监测设备）。全双工有线电桥装置包括信号特征监测装置，其能够监测链路并提供表示沿着链路沿相反方向同时传输的相应单向信号分量的相应输出信号。定向信号分离器，包括电压探头和电流探头，每个可以耦合到链路而不中断链路或以其他方式中断正在进行的通信，将信号特征监测装置耦合到链路。信号处理装置可操作地组合电压和电流探头的输出，并提供表示期望的单向信号分量的相应的输出信号。通信链路可以是单线传输线路或二线平衡传输线路。在后一种情况下，电压和电流探针对的单个探针耦合到两线平衡传输线的相应部分。

17. 发明申请

US20180098215A1 DATA PROCESSING AND AUTHENTICATION OF LIGHT COMMUNICATION SOURCES 审中-公开
公开(公告)号：US20180098215A1
公开(公告)日：2018-04-05
申请号：US15282328
申请日：2016-09-30
申请人： Richard D. Roberts , Parmoon Seddighrad , Javier Perez-Ramirez , Roni Abiri
发明人： Richard D. Roberts , Parmoon Seddighrad , Javier Perez-Ramirez , Roni Abiri
IPC分类号： H04W12/06 , H04B10/116 , G06K9/00 , H04N7/18
CPC分类号： H04W12/06 , G06K9/00496 , G06K9/00671 , G06K9/00825 , H04B10/116 , H04N7/183
摘要： Various systems and methods for identifying and performing authentication of visible light communications using optical camera communication techniques are described. In an example, an electronic processing system to authenticate a particular light emitting source includes electronic operations for: detecting, from image data, modulated light data emitted from a light emitting object, where the image data depicts the light emitting object, and where the image data is captured with an image sensor (e.g., of a camera); identifying, from the image data, the light emitting object as a source of the modulated light data; receiving an indication to select the light emitting object as an authenticated source of the modulated light data; and performing a command to process the modulated light data from the authenticated source, with the command performed in response to the indication to select the light emitting object as the authenticated source of the modulated light data.

18. 发明授权

US09891318B2 Location detection system 有权
公开(公告)号：US09891318B2
公开(公告)日：2018-02-13
申请号：US13976989
申请日：2011-11-30
申请人： Richard D. Roberts
发明人： Richard D. Roberts
IPC分类号： G01C3/08 , G01S17/06 , G01S17/00 , G01S17/42 , G01S3/784
CPC分类号： G01S17/06 , G01S3/784 , G01S17/003 , G01S17/42
摘要： Various embodiments are directed to a location detection system. The location detection system may utilize one or more light sources in a fixed and known position capable of emitting modulated light. The location detection system may utilize one or more light receivers in a fixed and known position operative to detect light emitted by the light sources that has been reflected back off an object. The location detection system may utilize a processor circuit that may be communicatively coupled with the light receiver and the light sources. The processor circuit may be operative to receive signals indicative of the detected reflected emitted light from the light receiver. The processor circuit may also be operative to process the signals to determine a location of the object that reflected the emitted light.

19. 发明授权

US09148250B2 Methods and arrangements for error correction in decoding data from an electromagnetic radiator 有权
标题翻译：解码来自电磁辐射器的数据的纠错方法和装置
公开(公告)号：US09148250B2
公开(公告)日：2015-09-29
申请号：US13539354
申请日：2012-06-30
申请人： Richard D. Roberts , Praveen Gopalakrishnan , Mathys C. Walma , Lei T. Yang
发明人： Richard D. Roberts , Praveen Gopalakrishnan , Mathys C. Walma , Lei T. Yang
IPC分类号： H03M13/00 , H04L1/00 , H03M13/09
CPC分类号： H04L1/0045 , H03M13/09
摘要： Embodiments may communicate via an electromagnetic radiator, or light source, that can be amplitude modulated such as light emitting diode lighting via receivers that can determine data from light received from the radiator. Some embodiments decode data of a packet transmitted from modulated lighting by means of a device with a low sampling frequency such as a relatively inexpensive camera. Many embodiments determine locations of start frame delimiters in packets. Several embodiments implement repeat decoding on packets of the same data to reduce packet error rates. Some embodiments are intended for indoor navigation via photogrammetry using self-identifying light anchors. In many embodiments, the data signal may be communicated via the light source at frequencies causing flicker that is not perceivable to the human eye.
摘要翻译：实施例可以经由可以通过接收器进行幅度调制的电磁辐射器（例如发光二极管照明）进行通信，所述接收器可以从从散热器接收的光确定数据。一些实施例通过具有低采样频率的设备（例如相对便宜的照相机）解码从调制照明发射的分组的数据。许多实施例确定分组中起始帧分隔符的位置。几个实施例对相同数据的分组实施重复解码以减少分组错误率。一些实施例旨在通过使用自识别光锚的摄影测量来进行室内导航。在许多实施例中，数据信号可以以导致人眼不可感知的闪烁的频率经由光源传送。

20. 发明申请

US20140270799A1 METHOD AND SYSTEM FOR CAMERA ENABLED ERROR DETECTION 审中-公开
标题翻译：用于摄像机启用的错误检测的方法和系统
公开(公告)号：US20140270799A1
公开(公告)日：2014-09-18
申请号：US14210390
申请日：2014-03-13
申请人： Richard D. Roberts , Selvakumar Panneer
发明人： Richard D. Roberts , Selvakumar Panneer
IPC分类号： H04B10/116
CPC分类号： H04B10/116 , H04B10/1141
摘要： The disclosure generally relates to a method and apparatus for decoding optical signals form a device. An exemplary method includes the steps of receiving, at a device, a plurality of optical frames, each optical frame having an encoded optical signal with an optical signal frequency; recording the plurality of optical frames to obtain a recorded optical image, the recorded optical image having a first frame per second (FPS) recording rate; processing the recorded optical image to obtain a digital signal corresponding to the encoded optical signal contained in at least one of the plurality of optical frames; and decoding the digital signal to obtain decoded information.
摘要翻译：本发明一般涉及一种从设备中解码光信号的方法和装置。一种示例性方法包括以下步骤：在设备处接收多个光学帧，每个光学帧具有具有光信号频率的经编码的光信号; 记录多个光学帧以获得记录的光学图像，所记录的光学图像具有第一帧/秒（FPS）记录速率; 处理所记录的光学图像以获得与包含在所述多个光学帧中的至少一个中的所述编码光信号相对应的数字信号; 并解码数字信号以获得解码的信息。

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