公开(公告)号：US20150016573A1

公开(公告)日：2015-01-15

申请号：US14324026

申请日：2014-07-03

申请人： Verint Systems Ltd.

发明人： Benjamin Imanilov

IPC分类号： H04B7/08 ,  H04L27/00 ,  H04L27/26

CPC分类号： H04L27/0002 ,  H04L27/10 ,  H04L27/265

摘要： Methods and systems for passive monitoring and analysis of large numbers of cellular communication channels. The processing functions of a monitoring system are split between a front-end processor and a host that communicate over an interface. The front-end processor may comprise a signal-processing board installed in the computer, and the interface comprises a Peripheral Component Interconnect Express (PCIe) bus. A Radio Frequency (RF) receiver receives and down-coverts one or more RF bands of interest, which comprise a large number of communication channels. The front-end processor digitizes the received signals and produces a plurality of single-channel digital signals. In order to avoid high data rates, the front-end processor generates and sends to the host multi-channel digital signals instead of single-channel digital signals for processing. Each multi-channel digital signal comprises a respective set of communication channels (e.g., four channels), which are distributed over frequency.

摘要翻译： 用于被动监测和分析大量蜂窝通信信道的方法和系统。 监控系统的处理功能在前端处理器和通过接口进行通信的主机之间分开。 前端处理器可以包括安装在计算机中的信号处理板，并且该接口包括外围部件互连Express（PCIe）总线。 射频（RF）接收机接收并下载一个或多个感兴趣的RF频带，其包括大量的通信信道。 前端处理器将接收的信号数字化并产生多个单通道数字信号。 为了避免高数据速率，前端处理器生成并发送给主机多通道数字信号，而不是单通道数字信号进行处理。 每个多通道数字信号包括通过频率分布的相应的一组通信信道（例如，四个信道）。

公开(公告)号：US08934532B2

公开(公告)日：2015-01-13

申请号：US13776505

申请日：2013-02-25

申请人： Itron, Inc.

发明人： Danny Ray Seely

IPC分类号： H04B1/66 ,  H04B15/00 ,  H03K9/10

CPC分类号： H04L27/0008 ,  H04L5/06 ,  H04L27/10

摘要： A multichannel radio receiver is configured to define at least two channel plans, each channel plan having at least one channel. The channel plans may differ due to channel bandwidths, channel locations, channel number and/or channel spacings. At least a portion of a radio spectrum may be common to at least two of the channel plans. At least two decoders may operate simultaneously to decode different modulation schemes on each of the at least two channel plans. In one example, two channel plans overlap portions of the radio spectrum. Two different and complementary modulation schemes are used on the two channel plans, respectively. The complementary modulation schemes reject signals associated with the other. Accordingly, portions of the radio spectrum are used simultaneously by at least two channel plans and at least two modulation schemes, respectively.

摘要翻译： 多通道无线电接收机被配置为定义至少两个信道计划，每个信道方案具有至少一个信道。 信道计划可能因信道带宽，信道位置，信道号和/或信道间隔而不同。 无线电频谱的至少一部分对于至少两个信道规划可能是共同的。 至少两个解码器可以同时操作以解码至少两个信道计划中的每一个上的不同调制方案。 在一个示例中，两个信道计划与无线电频谱的部分重叠。 两个不同的和互补的调制方案分别用于两个信道计划。 互补调制方案拒绝与另一个相关联的信号。 因此，无线电频谱的部分分别由至少两个信道计划和至少两个调制方案同时使用。

公开(公告)号：US08913701B2

公开(公告)日：2014-12-16

申请号：US13776476

申请日：2013-02-25

申请人： Itron, Inc.

发明人： Danny Ray Seely

IPC分类号： H04B1/10 ,  H03K7/02

CPC分类号： H04L27/0008 ,  H04L5/06 ,  H04L27/10 ,  H04L2027/0095

摘要： A radio may define a channel plan to include one or more channels, and each channel may include a plurality of overlapping filters. Each filter may overlap at least one other filter, such as by an expected bandwidth of an incoming signal. The overlapping filters may extend over a frequency range based in part on an expected frequency error of the incoming signal. Due in part to the overlapping nature of the filters, the incoming signal will be within at least one of the filters. Since only one of the filters must receive the incoming signal, the filters may be narrower than might otherwise be the case, particularly in an application that includes frequency error. Accordingly, the filters may be narrower than their respective channels, and therefore receive less noise and interference. This improves signal-to-noise and improves the quality of the link and range.

摘要翻译： 无线电可以定义包括一个或多个信道的信道规划，并且每个信道可以包括多个重叠的过滤器。 每个滤波器可以与至少一个其他滤波器重叠，例如与输入信号的期望带宽重叠。 重叠滤波器可以部分地基于输入信号的预期频率误差而在频率范围上延伸。 部分由于滤波器的重叠性质，输入信号将在至少一个滤波器内。 由于只有一个滤波器必须接收输入信号，所以滤波器可能比其他情况更窄，特别是在包含频率误差的应用中。 因此，滤波器可能比其相应的信道更窄，因此接收到更少的噪声和干扰。 这提高了信噪比，提高了链路和范围的质量。

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。

公开(公告)号：US20140218206A1

公开(公告)日：2014-08-07

申请号：US14239542

申请日：2012-09-11

申请人： Theodorus Tjhang ,  Yuichi Kobayashi ,  Takeaki Nakayama ,  Motohiro Nakanouchi ,  David Santoso

发明人： Theodorus Tjhang ,  Yuichi Kobayashi ,  Takeaki Nakayama ,  Motohiro Nakanouchi ,  David Santoso

IPC分类号： E21B47/12

CPC分类号： E21B47/12 ,  E21B47/122 ,  H04L1/0003 ,  H04L1/0041 ,  H04L5/1446 ,  H04L5/1453 ,  H04L12/40136 ,  H04L12/40169 ,  H04L25/4904 ,  H04L25/4908 ,  H04L27/0008 ,  H04L27/10

摘要： A multi-scheme downhole tool bus system is provided. The system may comprise a tool bus master and a number tool bus slaves coupled together via a communications link The communications link may include an uplink communication and a downlink communication. The uplink communication and the downlink communication may include a number of communication schemes or data rates.

摘要翻译： 提供了一种多方案井下工具总线系统。 该系统可以包括通过通信链路耦合在一起的工具总线主机和数字工具总线从机。通信链路可以包括上行链路通信和下行链路通信。 上行链路通信和下行链路通信可以包括多个通信方案或数据速率。

公开(公告)号：US20140213202A1

公开(公告)日：2014-07-31

申请号：US13752716

申请日：2013-01-29

申请人： MEDTRONIC, INC.

发明人： Yu Wang ,  George C. Rosar

IPC分类号： H04B7/005

CPC分类号： H04B1/00 ,  H03B5/326 ,  H03C3/20 ,  H04L27/00 ,  H04L27/10 ,  H04L27/12 ,  H04L27/18 ,  H04L27/20

摘要： A medical device communication system transmitter may include a resonator coupled to a local oscillator for stabilizing an operating frequency of the local oscillator. A control device of the transmitter receives an open-loop control signal, and the local oscillator and the control device are configured to generate a direct modulated radio frequency transmission signal in response to the open-loop control signal.

摘要翻译： 医疗设备通信系统发射机可以包括耦合到本地振荡器的谐振器，用于稳定本地振荡器的工作频率。 发射机的控制装置接收开环控制信号，并且本地振荡器和控制装置被配置为响应于开环控制信号而产生直接调制的射频发射信号。

公开(公告)号：US20140169437A1

公开(公告)日：2014-06-19

申请号：US13927088

申请日：2013-06-25

申请人： Ronny Hadani ,  Salim Shlomo Rakib

发明人： Ronny Hadani ,  Salim Shlomo Rakib

IPC分类号： H04B7/005 ,  H04L27/01

CPC分类号： H04L5/0005 ,  H04B7/005 ,  H04L5/0016 ,  H04L5/0044 ,  H04L23/02 ,  H04L25/03834 ,  H04L27/01 ,  H04L27/10 ,  H04L27/2634 ,  H04L27/2649 ,  H04L27/265 ,  H04L27/2655 ,  H04L27/2697

摘要： A method for modulating data for transmission within a communication system. The method includes establishing a time-frequency shifting matrix of dimension N×N, wherein N is greater than one. The method further includes combining the time-frequency shifting matrix with a data frame to provide an intermediate data frame. A transformed data matrix is provided by permuting elements of the intermediate data frame. A modulated signal is generated in accordance with elements of the transformed data matrix.

摘要翻译： 一种用于在通信系统内调制用于传输的数据的方法。 该方法包括建立尺寸N×N的时间 - 频移矩阵，其中N大于1。 该方法还包括组合时频移位矩阵与数据帧以提供中间数据帧。 通过置换中间数据帧的元素来提供经变换的数据矩阵。 根据变换数据矩阵的元素生成调制信号。

公开(公告)号：US08660168B2

公开(公告)日：2014-02-25

申请号：US13689586

申请日：2012-11-29

申请人： Broadcom Corporation

发明人： Ahmadreza Rofougaran ,  Maryam Rofougaran

IPC分类号： H04B3/36

CPC分类号： H04L27/10 ,  H04B7/15542

摘要： Aspects of a method and system for communicating via a spatial multilink repeater are provided. In this regard, a received signal may be frequency shifted to generate a plurality of repeated signals, wherein each repeated signal may be shifted by a different frequency with respect to the received signal. Each repeated signal may comprise one or more signal components and a phase and/or amplitude of each of the components may be controlled to control a directivity of the repeated signals. Each of the repeated signals may be generated by quadrature down-converting said received signal by mixing the received signal with a first LO signal pair, up-converting the down-converted signal by mixing it with a second LO signal pair, and adding or subtracting an in-phase portion and a quadrature-phase portion of the up-converted signal.

摘要翻译： 提供了一种通过空中多链路中继器进行通信的方法和系统的方面。 在这点上，接收信号可以被频移以产生多个重复的信号，其中每个重复的信号可以相对于接收的信号被移位不同的频率。 每个重复信号可以包括一个或多个信号分量，并且可以控制每个分量的相位和/或幅度以控制重复信号的方向性。 可以通过将接收信号与第一LO信号对混合来对所接收的信号进行正交降频转换来产生每个重复信号，通过将下变频信号与第二LO信号对进行混合，将下变频信号进行上变频，以及加法或减法 上变频信号的同相部分和正交相位部分。

公开(公告)号：US08594138B2

公开(公告)日：2013-11-26

申请号：US13184752

申请日：2011-07-18

申请人： Michael Hirano

发明人： Michael Hirano

IPC分类号： H04J3/12

CPC分类号： H04L27/10 ,  H04L65/80 ,  H04M3/5116 ,  H04M11/066

摘要： Improvements are disclosed for in-band signaling, i.e., transmission of data in a voice channel of a digital wireless network during a voice call session. A family of narrow-band signaling methods, some employing tapered waveforms, is disclosed to successfully pass data-carrying signals through the low-bit rate modes of the EVRC-B vocoder commonly used in CDMA wireless channels. These features can be used in cell phones or other wireless communication devices, including automotive applications.

摘要翻译： 公开了用于带内信令的改进，即在语音呼叫会话期间数字无线网络的语音信道中的数据传输。 公开了一些采用锥形波形的窄带信令方法，以便通过CDMA无线信道中通常使用的EVRC-B声码器的低比特率模式成功传送数据携带信号。 这些功能可用于手机或其他无线通信设备，包括汽车应用。

公开(公告)号：US08583067B2

公开(公告)日：2013-11-12

申请号：US12561136

申请日：2009-09-16

申请人： Ramakrishna S. Budampatl ,  Arun V. Mahasenan ,  SrinivasaRao Katuri ,  Sharath Babu Malve ,  Guhapriyan Thanikachalam

发明人： Ramakrishna S. Budampatl ,  Arun V. Mahasenan ,  SrinivasaRao Katuri ,  Sharath Babu Malve ,  Guhapriyan Thanikachalam

IPC分类号： H04B1/06 ,  H04B7/00

CPC分类号： H04B7/0885 ,  H04L25/0204 ,  H04L25/03019 ,  H04L25/49 ,  H04L27/0014 ,  H04L27/10 ,  H04L2027/003

摘要： An apparatus includes a transceiver configured to transmit wireless signals to and receive wireless signals from wireless nodes associated with an industrial process. The apparatus also includes a controller configured to initiate transmission of the wireless signals and to process data contained in the received wireless signals. The transceiver includes a diversity receiver configured to process the wireless signals from the wireless nodes. The transceiver may be further configured to perform beam-shaping in order to transmit a directional beam to at least one of the wireless nodes. Also, the controller may be configured to perform spatial routing by identifying a target of a wireless transmission and to initiate transmission of the directional beam towards a known or estimated location associated with the identified target.

摘要翻译： 一种装置包括：收发器，被配置为向与工业过程相关联的无线节点发送无线信号并从无线信号接收无线信号。 该装置还包括控制器，其被配置为启动无线信号的传输并处理包含在所接收的无线信号中的数据。 收发器包括被配置为处理来自无线节点的无线信号的分集接收机。 收发器还可以被配置为执行波束整形，以便向至少一个无线节点发送定向波束。 此外，控制器可以被配置为通过识别无线传输的目标来执行空间路由，并且启动定向波束朝向与所识别的目标相关联的已知或估计位置的传输。