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1. 发明授权

US4637064A Local area network equalization system and method 失效
标题翻译：局域网均衡系统及方法
公开(公告)号：US4637064A
公开(公告)日：1987-01-13
申请号：US721974
申请日：1985-04-10
申请人： Richard D. Roberts , William D. Walker
发明人： Richard D. Roberts , William D. Walker
IPC分类号： H04B3/04 , H04L12/28 , H04B1/54 , H04B17/00
CPC分类号： H04B3/04 , H04L12/2801
摘要： A global network equalization system for equalizing all modem receivers and modem transmitters connected to a local area network. A calibration signal is injected over the local area network from a reference or common point and received by each of the receivers. A parameter of the received signal (e.g. amplitude, power, or spectral density) is compared to a reference value and the gain of the receiver is adjusted in response thereto. When each of the receivers has been equalized, each transmitter and the associated receiver is tuned to a common vacant frequency. The transmitter transmits a signal that is then received by the associated receiver via the reference point. The received signal is compared to another reference value and the transmitter gain is adjusted in response thereto. In this way each transmitter and each receiver is equalized to the reference point of the local area network, and completely equalized communications can occur between any transmitter and receiver connected thereto.
摘要翻译：全球网络均衡系统，用于均衡连接到局域网的所有调制解调器接收机和调制解调器发射机。校准信号从参考点或公共点注入局域网上，并由每个接收器接收。将接收信号（例如振幅，功率或频谱密度）的参数与参考值进行比较，并且响应于此调整接收机的增益。当每个接收机已被均衡时，每个发射机和相关联的接收机被调谐到一个共同的空闲频率。发射机发送一个信号，然后经相关接收机经由参考点接收信号。将接收的信号与另一个参考值进行比较，并响应于此调整发射机增益。以这种方式，每个发射机和每个接收机被均衡到局域网的参考点，并且可以在连接到其的任何发射机和接收机之间进行完全均衡的通信。

2. 发明授权

US09461752B2 Methods and arrangements for generating a waveform for frequency shift keying communications 有权
标题翻译：用于生成用于频移键控通信的波形的方法和装置
公开(公告)号：US09461752B2
公开(公告)日：2016-10-04
申请号：US13539351
申请日：2012-06-30
申请人： Richard D. Roberts , Praveen Gopalakrishnan , Mathys C. Walma
发明人： Richard D. Roberts , Praveen Gopalakrishnan , Mathys C. Walma
IPC分类号： H04L27/10 , H04B10/556 , H04B10/116
CPC分类号： H04B10/5563 , H04B10/116 , H04B10/502 , H04L27/04 , H04L27/12
摘要： Embodiments may provide a way of communicating via an electromagnetic radiator, or light source, that can be amplitude modulated such as light emitting diode (LED) lighting and receivers or detectors that can determine data from light received from the amplitude modulated electromagnetic radiator. Some embodiments may provide a waveform in the form of chips at a chipping clock frequency that switch a light source between on and off states to communicate via light sources that can be amplitude modulated such as LED lighting. Some embodiments may provide a method of transmitting the waveform via modulated LED lighting. Some embodiments are intended for indoor navigation via photogrammetry (i.e., image processing) using self-identifying LED light anchors. In many embodiments, the data signal may be communicated via the light source at amplitude modulating frequencies such that the resulting flicker is not perceivable to the human eye.
摘要翻译：实施例可以提供通过可以被调幅的电磁辐射器或光源（例如发光二极管（LED）照明）和可以从从调幅电磁辐射器接收的光确定数据的接收器或检测器进行通信的方式。一些实施例可以以切片时钟频率提供以切片时钟频率的芯片形式的波形，该光纤切换状态之间的光源通过可被调幅的光源（例如LED照明）进行通信。一些实施例可以提供通过经调制的LED照明来发送波形的方法。一些实施例旨在通过使用自识别LED光锚的摄影测量（即，图像处理）进行室内导航。在许多实施例中，可以以幅度调制频率通过光源传送数据信号，使得所得到的闪烁对人眼不能察觉。

3. 发明申请

US20150016824A1 APPARATUS, SYSTEM AND METHOD OF COMMUNICATING POSITIONING TRANSMISSIONS 有权
标题翻译：装置，系统和通信定位传输方法
公开(公告)号：US20150016824A1
公开(公告)日：2015-01-15
申请号：US14129303
申请日：2013-07-10
申请人： Richard D. Roberts
发明人： Richard D. Roberts
IPC分类号： H04B10/116 , H04B10/556
CPC分类号： H04B10/116 , H04B10/1129
摘要： Some demonstrative embodiments include apparatuses, systems and/or methods of communicating positioning transmissions. For example, an apparatus may include a controller to control at least one light transmitter to transmit from a mobile object Intensity-Modulated (IM) optical signals including On-Off-Keying (OOK) signals of one or more positioning transmissions, the controller is to control the at least one light transmitter to transmit from the mobile object one or more first OOK signals over a first ranging frequency, and to transmit from the mobile object one or more second OOK signals over a second ranging frequency, the second ranging frequency is different from the first ranging frequency.
摘要翻译：一些演示实施例包括通信定位传输的装置，系统和/或方法。例如，设备可以包括控制器，用于控制至少一个光发射机从包括一个或多个定位传输的开 - 关键（OOK）信号的移动对象强度调制（IM）光信号发射，控制器是以控制所述至少一个光发射机在所述移动对象上通过第一测距频率发射一个或多个第一OOK信号，并且通过第二测距频率从所述移动对象发射一个或多个第二OOK信号，所述第二测距频率与第一测距频率不同。

4. 发明申请

US20140308048A1 METHODS AND ARRANGEMENTS FOR FREQUENCY SHIFT COMMUNICATIONS BY UNDERSAMPLING 有权
标题翻译：频谱移动通信的方法和安排
公开(公告)号：US20140308048A1
公开(公告)日：2014-10-16
申请号：US13977696
申请日：2011-11-14
申请人： Richard D. Roberts , Mathijs C. Walma , Praveen Gopalakrishnan
发明人： Richard D. Roberts , Mathijs C. Walma , Praveen Gopalakrishnan
IPC分类号： H04B10/556 , H04B10/524 , H04B10/50
CPC分类号： H04B10/116 , H04B10/502 , H04B10/524 , H04B10/5563 , H04B10/60 , H04L25/4902 , H04L27/02 , H04L27/10 , H04L27/12 , H04L27/144 , H04L27/2096 , H04L27/223
摘要： Embodiments may provide a way of communicating via an electromagnetic radiator, or light source, that can be amplitude modulated such as light emitting diode (LED) lighting and receivers or detectors that can determine data from light received from the amplitude modulated electromagnetic radiator. Some embodiments may provide a method of transmitting/encoding data via modulated LED lighting and other embodiments may provide receiving/decoding data from the modulated LED lighting by means of a device with a low sampling frequency such as a relatively inexpensive camera (as might be found in a smart phone). Some embodiments are intended for indoor navigation via photogrammetry (i.e., image processing) using self-identifying LED light anchors. In many embodiments, the data signal may be communicated via the light source at amplitude modulating frequencies such that the resulting flicker is not perceivable to the human eye.
摘要翻译：实施例可以提供通过可以被调幅的电磁辐射器或光源（例如发光二极管（LED）照明）和可以从从调幅电磁辐射器接收的光确定数据的接收器或检测器进行通信的方式。一些实施例可以提供通过经调制的LED照明来发送/编码数据的方法，并且其他实施例可以通过具有低采样频率的设备（例如相对便宜的照相机）提供来自经调制的LED照明的数据的接收/解码在智能手机中）。一些实施例旨在通过使用自识别LED光锚的摄影测量（即，图像处理）进行室内导航。在许多实施例中，可以以幅度调制频率通过光源传送数据信号，使得所得到的闪烁对人眼不能察觉。

5. 发明授权

US08718918B2 Determining relative positioning information 有权
标题翻译：确定相对定位信息
公开(公告)号：US08718918B2
公开(公告)日：2014-05-06
申请号：US13977671
申请日：2012-04-26
申请人： Richard D. Roberts
发明人： Richard D. Roberts
IPC分类号： G05D1/02 , B60W30/16 , G08G1/16 , G08G1/00
CPC分类号： B60W30/16 , B60Q1/0023 , B60W2550/143 , G01S5/16 , G01S11/12 , G05D1/024 , G05D1/0274 , G05D1/0278 , G05D2201/0213 , G08G1/16 , G08G1/163 , G08G1/22
摘要： A signal detecting unit configured to be associated with a first vehicle includes one or more signal sensors and one or more processors and is configured to receive one or more signals from one or more signal sources is associated with a second vehicle. A set of time values is determined based on arrival times of the signal(s), and a set of distance expressions is generated. A set of distance equations is generated based on the set of time values and the set of distance expressions, and the set of distance equations is solved to determine one or more positions associated with the first vehicle or the one or more signal sources within a defined coordinate system.
摘要翻译：配置为与第一车辆相关联的信号检测单元包括一个或多个信号传感器和一个或多个处理器，并且被配置为从一个或多个信号源接收与第二车辆相关联的一个或多个信号。基于信号的到达时间确定一组时间值，并生成一组距离表达式。基于一组时间值和一组距离表达式生成一组距离方程，并且解决距离方程组以确定与所定义的第一车辆或一个或多个信号源相关联的一个或多个位置坐标系。

6. 发明申请

US20140003817A1 TRANSMIT AND RECEIVE MIMO PROTOCOLS FOR LIGHT ARRAY COMMUNICATIONS 有权
标题翻译：发射和接收用于轻阵列通信的MIMO协议
公开(公告)号：US20140003817A1
公开(公告)日：2014-01-02
申请号：US13538888
申请日：2012-06-29
申请人： Richard D. Roberts , Jing Zhu , Mathys C. Walma
发明人： Richard D. Roberts , Jing Zhu , Mathys C. Walma
IPC分类号： H04B10/10 , H04B10/00 , H04J14/00
CPC分类号： H04B10/11 , H04L1/0625
摘要： A Multiple-Input-Multiple-Output (MIMO) data transmit-receive protocol that can be used with an arbitrary light array, including one or more lights, that transmits light to a light receiver having an image sensor, including a large number of light sensing pixels. The protocol supports two primary protocol or coding modes in which the light array may transmit: spatial coding and space-time coding. The protocol is constructed upon the use of efficient start-frame-delimiters (SFDs) and data-delimiters (DDs). The lights may be implemented to transmit the SFDs, the data delimiters, and data bits as modulated light. The light may be modulated in accordance with a modulation technique referred to as frequency shift on-off keying (FSOOK).
摘要翻译：一种多输入多输出（MIMO）数据发送 - 接收协议，其可以与包括一个或多个光的任意光阵列一起使用，所述光阵列将光传输到具有图像传感器的光接收器，所述光接收器包括大量的光感测像素。该协议支持光阵列可以传输的两种主要协议或编码模式：空间编码和时空编码。该协议是使用高效的起始帧分隔符（SFD）和数据分隔符（DD）构建的。灯可以被实现为将SFD，数据定界符和数据位作为调制光传输。可以根据称为频移开关键控（FSOOK）的调制技术来调制光。

7. 发明申请

US20090075615A1 DEVICE, SYSTEM, AND METHOD OF PHASED-ARRAY CALIBRATION 有权
标题翻译：装置，系统和相位阵列校准方法
公开(公告)号：US20090075615A1
公开(公告)日：2009-03-19
申请号：US11856100
申请日：2007-09-17
申请人： Richard D. Roberts
发明人： Richard D. Roberts
IPC分类号： H04B7/00 , H01Q21/00
CPC分类号： H01Q3/267 , H04B7/0613 , H04B7/0837 , H04B17/21
摘要： Device, system and method of phased-array calibration. In some demonstrative embodiments, a wireless communication device may include an array of antenna elements; a calibration element located at a predefined location relative to the antenna elements; and an antenna controller capable of calibrating at least one beam forming weight of at least one antenna element of the array of antenna elements based on a detected phase of a calibration signal transmitted via one of the calibration element and the antenna element and received via another of the calibration element and the antenna element. Other embodiments are described and claimed
摘要翻译：相控阵校准装置，系统及方法。在一些演示实施例中，无线通信设备可以包括天线元件阵列; 位于相对于天线元件的预定位置的校准元件; 以及天线控制器，其能够基于经由所述校准元件和所述天线元件中的一个发送的校准信号的检测相位来校准所述天线元件阵列中的至少一个天线元件的至少一个波束形成权重并经由另一个校准元件和天线元件。描述和要求保护其他实施例

8. 发明申请

US20080165039A1 SYSTEM AND METHOD FOR COMMUNICATING AT LOW SIGNAL-TO-NOISE RATIO USING INJECTED TRAINING SYMBOLS 有权
标题翻译：使用注射训练符号在低信噪比下进行通信的系统和方法
公开(公告)号：US20080165039A1
公开(公告)日：2008-07-10
申请号：US11620893
申请日：2007-01-08
申请人： Richard D. Roberts , Terry Tabor
发明人： Richard D. Roberts , Terry Tabor
IPC分类号： H03M7/20
CPC分类号： H04B7/2628
摘要： A system and method for communicating includes a transmitter that transmits a communication signal having a plurality of successive frames, with each frame formed with alternatively arranged N known data symbols and M unknown data symbols such that the N known data symbols as training symbols. The communications signals are received within a receiver. The N known data symbols are synchronized at the receiver by correlating and time averaging the N known data symbols.
摘要翻译：用于通信的系统和方法包括发送具有多个连续帧的通信信号的发射机，其中每个帧由备选地布置的N个已知数据符号和M个未知数据符号形成，使得N个已知数据符号作为训练符号。在接收机内接收通信信号。通过对N个已知数据符号进行相关和时间平均，N个已知数据符号在接收机处被同步。

9. 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。

10. 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。

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