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    Monitoring status of railyard equipment using wireless sensing devices
    61.
    发明授权
    Monitoring status of railyard equipment using wireless sensing devices 失效
    使用无线传感设备监控雷达设备的状态

    公开(公告)号：US07388483B2

    公开(公告)日：2008-06-17

    申请号：US11317570

    申请日：2005-12-23

    申请人： Kenneth Brakeley Welles ,  Rahul Bhotika ,  David Michael Davenport ,  John Erik Hershey ,  Robert James Mitchell ,  Emad Andarawis Andarawis

    发明人： Kenneth Brakeley Welles ,  Rahul Bhotika ,  David Michael Davenport ,  John Erik Hershey ,  Robert James Mitchell ,  Emad Andarawis Andarawis

    IPC分类号： G08B1/08 ,  B60R25/10 ,  B60Q1/00 ,  B61L5/20 ,  G08B3/00

    CPC分类号： B61L5/107 ,  B61L5/02 ,  B61L5/125 ,  B61L17/023

    摘要： A wireless position sensing device is provided for monitoring railyard equipment status. The device comprises a gravity sensing mechanism for sensing an angular displacement with respect to a substantially vertical line, and for generating a displacement signal upon sensing a change in angular displacement exceeding approximately 40 degrees. A processing mechanism, operatively coupled to the gravity sensing mechanism, receives the displacement signal. A radio frequency transmitter, responsive to the processing mechanism, transmits a data signal indicative of the angular displacement. The processing mechanism is programmed to activate the radio frequency transmitter upon receipt of the displacement signal. The gravity sensing mechanism is affixed, attached, or mechanically coupled to railyard equipment comprising at least one of a manually operated rail switch or a safety indicator.

    摘要翻译： 提供了一种无线位置检测装置，用于监视设备状态。 该装置包括重力感测机构，用于感测相对于基本上垂直的线的角位移，并且用于在感测到角位移的变化超过大约40度时产生位移信号。 可操作地耦合到重力感测机构的处理机构接收位移信号。 响应于处理机构的射频发射器发送指示角位移的数据信号。 处理机构被编程为在接收到位移信号时激活射频发射器。 重力感测机构被固定，附接或机械地联接到包括手动操作的轨道开关或安全指示器中的至少一个的railyard设备。

    Ultra-wideband communications system
    64.
    发明授权
    Ultra-wideband communications system 失效
    超宽带通信系统

    公开(公告)号：US06810087B2

    公开(公告)日：2004-10-26

    申请号：US09753443

    申请日：2001-01-03

    申请人： Ralph Thomas Hoctor ,  Harold Woodruff Tomlinson, Jr. ,  Kenneth Brakeley Welles, II ,  John Erik Hershey

    发明人： Ralph Thomas Hoctor ,  Harold Woodruff Tomlinson, Jr. ,  Kenneth Brakeley Welles, II ,  John Erik Hershey

    IPC分类号： H04L2700

    CPC分类号： H04B1/71632 ,  H04B1/71637 ,  H04B1/7172 ,  H04B2001/6908 ,  H04B2201/71636 ,  H04L25/4902 ,  H04L27/0004

    摘要： An ultra-wideband (UWB) communications system combines the techniques of a transmitted reference (TR) and a multiple access scheme called delay hopping (DH). Combining these two techniques using UWB signaling results in a penalty in signal-to-noise ratio (SNR) over conventional pulse position modulation (PPM) techniques but avoids the synchronization difficulties associated with conventional approaches. The signaling pulse waveforms are designed to insure that their power spectral densities, after any frequency translation to the center of an operating band, are essentially spectrally disjoint with frequencies that must be protected. This TR technique is combined with the DH multiple access technique to create a UWB communications scheme that has a greater multiple access capacity than does the UWB TR technique by itself.

    摘要翻译： 超宽带（UWB）通信系统结合了传输参考（TR）和称为延迟跳变（DH）的多址方案的技术。 结合使用UWB信令的这两种技术相比传统脉冲位置调制（PPM）技术导致信噪比（SNR）的损失，但是避免了与常规方法相关的同步困难。 信号脉冲波形被设计成确保在对工作频带的中心进行任何频率转换之后它们的功率谱密度与必须被保护的频率基本上是光谱不相交的。 这种TR技术与DH多址接入技术相结合，以创建具有比UWB TR技术本身更大的多接入容量的UWB通信方案。

    Optimization of television reception by selecting among or combining multiple antenna inputs
    65.
    发明授权
    Optimization of television reception by selecting among or combining multiple antenna inputs 有权
    通过选择或组合多个天线输入来优化电视接收

    公开(公告)号：US06577353B1

    公开(公告)日：2003-06-10

    申请号：US09422445

    申请日：1999-10-21

    申请人： Kenneth Brakeley Welles, II ,  Mark Lewis Grabb ,  John Erik Hershey

    发明人： Kenneth Brakeley Welles, II ,  Mark Lewis Grabb ,  John Erik Hershey

    IPC分类号： H04N500

    CPC分类号： H04B7/0871 ,  H04B7/0814 ,  H04N5/211 ,  H04N5/4401 ,  H04N5/46 ,  H04N21/426 ,  H04N21/42638 ,  H04N21/44209

    摘要： In a system for optimizing television reception by a television receiver receiving a diversity of input signals from a plurality of antennas, one of a plurality of combiners and television tuners selects the strongest combination of input signals for viewing and another scans the various combinations of input signals searching for a combination significantly stronger than the combination being viewed. A plurality of multiplexers selects the output signal of one combiner and transmits the selected signal to one of the tuners. A signal evaluation module evaluates the strength of the combinations of input signals and compares the strength of each combination of input signals to the strength of the viewing signal, looking for a superior signal. A control processor controls the combination of input signals selected by the combiners and the combiner output signal selected by the multiplexers. The control processor converts any superior signal found into the signal being viewed, at which time the process starts over and repeats.

    摘要翻译： 在用于通过接收来自多个天线的多种输入信号的电视接收机优化电视接收的系统中，多个组合器和电视调谐器中的一个选择用于观看的输入信号的最强组合，并且另外扫描输入信号的各种组合 寻找一种显着强于组合的组合。 多个复用器选择一个组合器的输出信号，并将所选择的信号发送到调谐器之一。 信号评估模块评估输入信号的组合的强度，并将输入信号的每个组合的强度与观看信号的强度进行比较，寻找优越的信号。 控制处理器控制由组合器选择的输入信号和由多路复用器选择的组合器输出信号的组合。 控制处理器将发现的任何优秀信号转换成正在观看的信号，此时该过程开始并重复。

    Receiver for detecting an amplitude modulated signal insinuated on an GHM signal
    66.
    发明授权
    Receiver for detecting an amplitude modulated signal insinuated on an GHM signal 有权
    用于检测在GHM信号上暗示的幅度调制信号的接收器

    公开(公告)号：US06430210B1

    公开(公告)日：2002-08-06

    申请号：US09285664

    申请日：1999-04-05

    申请人： Donald Thomas McGrath ,  Kenneth Brakeley Welles, II ,  John Erik Hershey

    发明人： Donald Thomas McGrath ,  Kenneth Brakeley Welles, II ,  John Erik Hershey

    IPC分类号： A61F206

    CPC分类号： H04L27/28

    摘要： A receiver for enabling one-way communications in a GHM network which does not interfere with or reduce the capability of the GHM network. The receiver detects a small modulation factor signal present on the GHM signal normally transmitted by the GHM transmitter. If the frequency of the modulated signal corresponds to a pre-defined frequency, then the receiver generates a command signal to, for example, a relay, annunciator, or other external device. More particularly, and in one embodiment, the receiver includes a filter which partially isolates the GHM energy from the lower 60 Hz harmonics. The receiver also includes a envelope detector coupled to filter. The envelope detector is coupled to a frequency detector. The frequency detector is coupled to a command decoder. The command decoder determines whether a plurality of AM modulation frequencies are present on the received signal. If the AM modulation signal is a specified frequency the decoder generates a signal which, in turn, causes signal generator to generate a command signal for transmission to an external device.

    摘要翻译： 用于在GHM网络中实现单向通信的接收机，其不干扰或降低GHM网络的能力。 接收机检测由GHM发射机正常发送的GHM信号上存在的小调制因子信号。 如果调制信号的频率对应于预先定义的频率，则接收机向例如继电器，信号器或其他外部设备产生命令信号。 更具体地，在一个实施例中，接收器包括将GHM能量与较低的60Hz谐波部分隔离的滤波器。 接收机还包括耦合到滤波器的包络检测器。 包络检测器耦合到频率检测器。 频率检测器耦合到命令解码器。 命令解码器确定接收信号上是否存在多个AM调制频率。 如果AM调制信号是指定频率，则解码器产生一个信号，该信号又使得信号发生器产生用于发送到外部设备的命令信号。

    Modulation of pilot tone amplitude in DTV broadcast for faster channel acquisition
    67.
    发明授权
    Modulation of pilot tone amplitude in DTV broadcast for faster channel acquisition 有权
    调制DTV广播中的导频音振幅，以实现更快的信道采集

    公开(公告)号：US06417890B1

    公开(公告)日：2002-07-09

    申请号：US09422442

    申请日：1999-10-21

    申请人： Kenneth Brakeley Welles, II ,  John Erik Hershey ,  Mark Lewis Grabb

    发明人： Kenneth Brakeley Welles, II ,  John Erik Hershey ,  Mark Lewis Grabb

    IPC分类号： H04N521

    CPC分类号： H04N5/211

    摘要： The existing ATSC broadcast standard is modified to improve both the speed at which the periodically transmitted training sequence is found after channel selection by a viewer and the speed at which synchronization is achieved to a continuous wideband overlay signal used for equalization of the decoded signal. The modification involves slight amplitude modulation of the pilot signal in a manner synchronized with the transmission of the training sequences. The modulation of the pilot signal is sufficiently small to be ignored by existing ATSC receivers; that is, it is backwards compatible. Properly equipped receivers can detect, more quickly than receivers not so equipped, transmission of the training sequence by decoding this pilot signal modulation, thereby being capable of providing a decoded image to a viewer more quickly after a channel change than a receiver not so equipped. Additionally, the time required to synchronize to a continuous wideband overlay signal which has been provided for equalization is reduced, as by varying the modulation slightly to correspond to the start of a particular phase portion of the periodic sequence such as an m-sequence used for the overlay.

    摘要翻译： 修改现有的ATSC广播标准，以改善观众频道选择之后发现周期性发送的训练序列的速度和实现同步的速度到用于解码信号的均衡的连续宽带覆盖信号。 该修改涉及以与训练序列的传输同步的方式对导频信号进行轻微的幅度调制。 导频信号的调制足够小，可以被现有的ATSC接收机忽略; 也就是说，它是向后兼容的。 正确配备的接收机可以比没有配备的接收机更快地检测到通过解码该导频信号调制的训练序列的传输，从而能够在频道改变之后更快地向观看者提供解码图像，而不是没有配备的接收机。 此外，与已经提供用于均衡的连续宽带覆盖信号同步所需的时间被减少，如通过稍微改变调制以对应于周期性序列的特定相位部分的开始，例如用于 覆盖层。

    Generalized division free duplexing techniques for decreasing rendevous time
    68.
    发明授权
    Generalized division free duplexing techniques for decreasing rendevous time 有权
    用于减少会合时间的广义分割自由双工技术

    公开(公告)号：US08379584B2

    公开(公告)日：2013-02-19

    申请号：US12761129

    申请日：2010-04-15

    申请人： Michael James Hartman ,  John Erik Hershey ,  Richard Louis Zinser ,  John Anderson Fergus Ross ,  Michael J. Dell'Anno

    发明人： Michael James Hartman ,  John Erik Hershey ,  Richard Louis Zinser ,  John Anderson Fergus Ross ,  Michael J. Dell'Anno

    IPC分类号： H04B7/00 ,  H04W4/00

    CPC分类号： H04L27/0006 ,  H04L5/1423 ,  H04L5/1461

    摘要： Provided are methods and systems of using division-free duplexing (DFD) to reduce rendezvous time between two or more cognitive radio devices. The cognitive radio devices may opportunistically use available frequency spectra by communicating over available channels. To communicate, a first device may rendezvous with a second device by transmitting a beaconing signal over a frequency on which the second device is listening. DFD techniques may enable each of the devices to listen to a channel while concurrently transmitting beacon signals over the same channel. As periods of listening and periods of transmitting over the same channel need not be separated due to the transmitter cancelling approach used in DFD techniques, rendezvous time may be significantly reduced. Further, embodiments include a generalized DFD (GDFD) approach wherein devices listen to a broad band of frequencies, thus further reducing rendezvous time.

    摘要翻译： 提供了使用无分割双工（DFD）来减少两个或更多个认知无线电设备之间的会合时间的方法和系统。 认知无线电设备可以通过在可用信道上通信来机会地使用可用的频谱。 为了通信，第一设备可以通过在第二设备正在收听的频率上发送信标信号而与第二设备进行会合。 DFD技术可以使得每个设备能够收听信道，同时在同一信道上发送信标信号。 由于在DFD技术中使用的发射机消除方法，因此通过同一信道的收听周期和周期不需要分离，会合时间可能会显着降低。 此外，实施例包括广义DFD（GDFD）方法，其中设备收听宽频带，从而进一步减少会合时间。

    Augmented distribution transformer and method of making same
    70.
    发明授权
    Augmented distribution transformer and method of making same 有权
    增强配电变压器及其制造方法

    公开(公告)号：US08102148B2

    公开(公告)日：2012-01-24

    申请号：US12751098

    申请日：2010-03-31

    申请人： John Erik Hershey ,  Michael James Hartman ,  Robert Dean King ,  Richard Louis Zinser ,  John Anderson Fergus Ross ,  Michael Joseph Dell'Anno

    发明人： John Erik Hershey ,  Michael James Hartman ,  Robert Dean King ,  Richard Louis Zinser ,  John Anderson Fergus Ross ,  Michael Joseph Dell'Anno

    IPC分类号： H02J7/00

    CPC分类号： H01F27/40 ,  Y10T29/4902

    摘要： A method, system, and apparatus including a distribution transformer having a communication module. The distribution transformer is configured to convert a first high voltage electricity from a high voltage distribution line to a first low voltage electricity and convert a second low voltage electricity from a low voltage power line to a second high voltage electricity. The communication module is programmed to provide time data representing time of day information along the low voltage power line to an electrical device and provide location data representing location information along the low voltage power line to the electrical device. The location information includes a geographic location of the distribution transformer.

    摘要翻译： 一种包括具有通信模块的配电变压器的方法，系统和装置。 配电变压器被配置为将来自高压配电线路的第一高压电力转换为第一低电压电力，并将来自低压电力线路的第二低压电力转换为第二高压电力。 通信模块被编程为将表示沿着低压电力线的时间信息的时间数据提供给电气设备，并且将表示沿着低压电力线的位置信息的位置数据提供给电气设备。 位置信息包括配电变压器的地理位置。