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1. 发明授权

US6101214A Power line communications spread spectrum symbol timing and random phasing 失效
标题翻译：电力线通信扩频符号定时和随机定相
公开(公告)号：US6101214A
公开(公告)日：2000-08-08
申请号：US845867
申请日：1997-04-28
申请人： John Erik Hershey , Gary Jude Saulnier , Richard August Korkosz , Kenneth Brakeley Welles, II , Richard Charles Gaus, Jr.
发明人： John Erik Hershey , Gary Jude Saulnier , Richard August Korkosz , Kenneth Brakeley Welles, II , Richard Charles Gaus, Jr.
IPC分类号： H04B1/69 , H04B3/54 , H04B15/00 , H04K1/00 , H04L27/30 , H04M11/04
CPC分类号： H04B1/69 , H04B3/54 , H04B2203/5416
摘要： A system for spread spectrum power line communications employs a harmonic modulation (HM) transmitter coupled to the power line for transmitting message bits to an HM receiver. The spread spectrum accommodates a plurality of HM transmitters simultaneously occupying the same bandwidth. The spectrum of HM, in a frequency range above 60 Hz but below the maximum frequency that will carry through a distribution transformer, is ideal in combating carrier synchronous noise since it can be interleaved with the noise harmonics and therefore be effectively spectrally disjoint with the synchronous noise process spectrum.
摘要翻译：用于扩频电力线通信的系统采用耦合到电力线的谐波调制（HM）发射机，用于向HM接收机发送消息比特。扩展频谱容纳多个同时占据相同带宽的HM发射机。在频率范围高于60Hz但低于将通过配电变压器进行的最大频率的HM的频谱是对付载波同步噪声的理想选择，因为它可以与噪声谐波进行交织，并且因此与同步信号有效地频谱分离噪声过程谱。

2. 发明授权

US5844949A Power line communication system 失效
标题翻译：电力线通信系统
公开(公告)号：US5844949A
公开(公告)日：1998-12-01
申请号：US728020
申请日：1996-10-09
申请人： John Erik Hershey , Richard August Korkosz , Gary Jude Saulnier , Richard Charles Gaus, Jr. , Kenneth Brakeley Welles, II
发明人： John Erik Hershey , Richard August Korkosz , Gary Jude Saulnier , Richard Charles Gaus, Jr. , Kenneth Brakeley Welles, II
IPC分类号： H04B3/54 , H04L1/04 , H04L5/06 , H04B1/10 , H03D1/04 , H04L25/08
CPC分类号： H04L1/04 , H04B3/54 , H04L5/06 , H04B2203/5416 , H04B2203/5495
摘要： A system for communicating digital information over wires having a great deal of harmonic distortion, such as a power line, employs a transmitter which transmitter which creates a carrier wave for each of a plurality of signals to be sent. This carrier wave has frequency lobes positioned between the frequency lobes of the harmonic distortion. Each of the lobes of a single carrier signal is encoded with the same bit value during a given bit period. This signal is then mixed with any existing signal on the wire. At a remote receiver coupled to the wires, the signal is sensed, filtered, and Fourier transformed into coefficients. The signal-to-noise (S/N) ratio of each Fourier coefficient is determined by a novel S/N estimation technique. The coefficients are weighted based upon the S/N ratio estimation, and decoded, preferably by an inner product of the weighted Fourier coefficients. Additionally, the S/N ratio estimates could be time averaged before being used in the weighting and bit decoding.
摘要翻译：用于通过诸如电力线等大量谐波失真的电线传送数字信息的系统采用发射机，发射机为要发送的多个信号中的每一个产生载波。该载波具有位于谐波失真的频率瓣之间的频率瓣。在给定的位周期期间，单个载波信号的每个波瓣以相同的比特值进行编码。然后将该信号与电线上的任何现有信号混合。在耦合到导线的远程接收器处，信号被感测，滤波和傅里叶变换成系数。每个傅立叶系数的信噪比（S / N）通过新的S / N估计技术来确定。基于S / N比估计对系数进行加权，优选地通过加权傅里叶系数的内积来解码。此外，在加权和比特解码之前，S / N比估计可以是时间平均的。

3. 发明授权

US5867489A Method and apparatus for TDMA slot synchronization with precision ranging 失效
标题翻译：用于具有精确测距的TDMA时隙同步的方法和装置
公开(公告)号：US5867489A
公开(公告)日：1999-02-02
申请号：US691964
申请日：1996-08-05
申请人： John Erik Hershey , Gary Jude Saulnier , Stephen Michael Hladik , Richard Charles Gaus, Jr. , Wayne Curtis Taft , Richard August Korkosz , Glen William Brooksby
发明人： John Erik Hershey , Gary Jude Saulnier , Stephen Michael Hladik , Richard Charles Gaus, Jr. , Wayne Curtis Taft , Richard August Korkosz , Glen William Brooksby
IPC分类号： G01S5/14 , G01S19/05 , G01S19/11 , G01S19/21 , G01S19/29 , G01S19/46 , H04B7/212 , H04J3/06 , H04J3/16
CPC分类号： H04B7/2125 , H04J3/0605 , G01S5/14
摘要： In a time division multiple access spacecraft communication system, each ground station determines when to send its information packets to arrive at the spacecraft at the beginning of a time slot. The calculation is based upon knowledge of the location of the spacecraft. A master ground station determines the location of the spacecraft by the use of the propagation delays between the various ground stations (including itself) and the spacecraft, together with knowledge of the locations of the ground stations. The spacecraft location is then transmitted back to the various ground stations. The determination of propagation delay by each ground station is performed in two major steps. The first step determines coarse time delay to within one bit interval by repeatedly transmitting a multibit unique word to the spacecraft, and counting bits until the next unique word is received from the spacecraft. To determine fine propagation delay, a high-frequency clock signal is counted from the time of transmission of each bit edge until the reception of the next bit edge. The sum of the coarse and fine delays, together with a plurality of frame intervals, establishes the range to the spacecraft.
摘要翻译：在时分多址航天器通信系统中，每个地面站确定在时隙开始时何时发送其信息分组到达航天器。计算基于对航天器位置的了解。主地面站通过使用各种地面站（包括其自身）和航天器之间的传播延迟以及地面站位置的知识来确定航天器的位置。然后将航天器的位置传送回各个地面站。每个地面站的传播延迟的确定在两个主要步骤中进行。第一步通过向航天器重复发送多位唯一字，并计数位，直到从航天器接收到下一个唯一字，确定在一个位间隔内的粗略时间延迟。为了确定精细的传播延迟，从每个位边沿的传输时间直到下一个位边沿的接收来计数高频时钟信号。粗略和精细延迟的总和以及多个帧间隔建立了航天器的范围。

4. 发明授权

US06668012B1 Identification of an identifiable code sequence in a received signal by correlation with summed different-phase replicas of the sequence 失效
标题翻译：通过与序列的相加不相位复制相关来识别接收信号中的可识别码序列
公开(公告)号：US06668012B1
公开(公告)日：2003-12-23
申请号：US09353655
申请日：1999-07-15
申请人： John Erik Hershey , Richard August Korkosz , Gary Jude Saulnier , Naofal Mohammed Wassel Al-Dhahir
发明人： John Erik Hershey , Richard August Korkosz , Gary Jude Saulnier , Naofal Mohammed Wassel Al-Dhahir
IPC分类号： H04L2730
CPC分类号： H04B1/70753 , H04B1/7077
摘要： A receiver for a unique word sequence or a spreading code sequence includes a memory which is preloaded with all possible phases of the code. The sequence in the received signal is correlated, in parallel, with sums of various ones of the different phases of the code. Thus, the received code is correlated with all possible phases of a replica of its own code. Consequently, one of the sums will exhibit a correlation peak, which indicates that the desired phase of the code is included in that particular sum. The other sums will not exhibit a correlation peak, and are is discarded. The different phases in the one sum which displayed correlation are divided into new sums, each having fewer phases, and the correlation is again performed. Again, those sums exhibiting no correlation are discarded, and the sum exhibiting correlation is divided into sums of fewer codes.
摘要翻译：用于唯一字序列或扩展码序列的接收机包括预先加载有代码的所有可能相位的存储器。并行地将接收信号中的序列与码的不同相位的和进行相加。因此，接收到的代码与其自己的代码的副本的所有可能的相位相关联。因此，总和中的一个将呈现相关峰值，这表示代码的期望相位被包括在该特定和中。其他总和将不会呈现相关峰值，并被丢弃。显示相关性的一个和中的不同相位被分成新的和，每个相位具有较少的相位，并且再次执行相关性。再次，表示没有相关性的那些和被丢弃，并且显示相关性的和被划分为较少代码的和。

5. 发明授权

US06621855B1 Scalable spread-spectrum signal detection and acquisition processor 有权
标题翻译：可扩展扩频信号检测和采集处理器
公开(公告)号：US06621855B1
公开(公告)日：2003-09-16
申请号：US09318853
申请日：1999-05-26
申请人： Nick Andrew Van Stralen , Richard August Korkosz , Gary Jude Saulnier , John Erik Hershey , Naofal Mohammed Wassel Al-Dhahir
发明人： Nick Andrew Van Stralen , Richard August Korkosz , Gary Jude Saulnier , John Erik Hershey , Naofal Mohammed Wassel Al-Dhahir
IPC分类号： H04B169
CPC分类号： H04B1/70752 , H04B1/708
摘要： A method allows determination of the presence of, the frequency of, and or the timing of a coded signal distributed in time, as for example a direct-sequence spread-spectrum signal or a signal having a coded header. According to the method, the received signal is correlated (16, 216, 316) with small sections of the spreading or header code, to produce partial correlations, as for example a 1024-chip spreading code is correlated in eight- or sixteen-chip portions. The result of each partial correlation is delayed (32, 232, 332/350) by an amount which results in temporal congruence or simultaneous occurrence of the partial correlations at a Doppler processor. The processor processes the simultaneous partial correlations, to produce signals which recur in the appropriate frequency bin at the recurrence rate of the spreading code. The frequency bin identifies the frequency of the received signals, and the time of the appearance of the signals at the bins is indicative of the time.
摘要翻译：一种方法允许确定在时间上分布的编码信号的存在，频率和/或定时，例如直接序列扩频信号或具有编码报头的信号。根据该方法，接收信号与扩展或报头代码的小部分相关（16,216,316），以产生部分相关性，例如1024个码片扩展码在八或十六个芯片中相关部分。每个部分相关的结果被延迟（32,232,332/350）一个量，这导致在多普勒处理器处的部分相关性的时间一致性或同时发生。处理器处理同时的部分相关，以产生以扩展码的复现速率在适当频率仓中重复的信号。频率仓识别接收到的信号的频率，并且信号在信息箱出现的时间表示时间。

6. 发明授权

US06424250B1 Communication system utilizing modified geometric harmonic modulation 有权
标题翻译：利用改进的几何谐波调制的通信系统
公开(公告)号：US06424250B1
公开(公告)日：2002-07-23
申请号：US09263582
申请日：1999-03-08
申请人： Charles McDonald Puckette, IV , Gary Jude Saulnier , Richard August Korkosz , John Erik Hershey
发明人： Charles McDonald Puckette, IV , Gary Jude Saulnier , Richard August Korkosz , John Erik Hershey
IPC分类号： H04B3/54 , H04L27/26
CPC分类号： H04B3/54 , H04B2203/5416 , H04B2203/5483 , H04L27/2614
摘要： A communication system for communicating a modified geometric harmonic modulated (GHM) signal on a power line is described. The system includes a transmitter for transmitting a GHM signal having a plurality of carriers, a highest frequency carrier being about 630 Hz, and a receiver for receiving the transmitted GHM signal.
摘要翻译：描述了用于在电力线上传送经修改的几何谐波调制（GHM）信号的通信系统。该系统包括用于发送具有多个载波的GHM信号的发射机，大约630Hz的最高频率载波，以及用于接收发送的GHM信号的接收机。

7. 发明授权

US06346875B1 GHM aggregator 有权
标题翻译： GHM聚合器
公开(公告)号：US06346875B1
公开(公告)日：2002-02-12
申请号：US09476821
申请日：2000-01-03
申请人： Charles McDonald Puckette , Gary Jude Saulnier , Richard August Korkosz , John Erik Hershey
发明人： Charles McDonald Puckette , Gary Jude Saulnier , Richard August Korkosz , John Erik Hershey
IPC分类号： H04M1104
CPC分类号： H04B3/54 , H04B2203/5416 , H04B2203/5433 , H04B2203/5441 , H04B2203/5483
摘要： The invention provides an aggregator for use in connection with a power distribution network including a power line. The aggregator comprises a receiver, a controller, and a data outbound link. The receiver is coupled to the power line and is configured to receive signals comprising messages, for example geometric harmonic modulation (GHM) signals, from the power line. The controller is coupled to the receiver and to the data outbound link. The controller is configured to provide messages received by the receiver to the data outbound link for transmission by radio frequency energy to a destination, for example a power control station.
摘要翻译：本发明提供了一种用于与包括电力线的配电网络结合使用的聚合器。聚合器包括接收器，控制器和数据出站链路。接收器耦合到电力线并且被配置为从电力线接收包括消息的信号，例如几何谐波调制（GHM）信号。控制器耦合到接收器和数据出站链路。控制器被配置为将接收器接收的消息提供给数据出站链路，以通过射频能量传送到目的地，例如功率控制站。

8. 发明授权

US06522243B1 Geometric harmonic modulation signaling and detection 有权
标题翻译：几何谐波调制信号和检测
公开(公告)号：US06522243B1
公开(公告)日：2003-02-18
申请号：US09892358
申请日：2001-06-28
申请人： Gary Jude Saulnier , Ralph Thomas Hoctor , John Erik Hershey , Richard Charles Gaus, Jr.
发明人： Gary Jude Saulnier , Ralph Thomas Hoctor , John Erik Hershey , Richard Charles Gaus, Jr.
IPC分类号： H04M1104
CPC分类号： H04B3/542 , H04B2203/5416 , H04L12/2803 , H04L2012/2843
摘要： A communication system includes a transmitter configured to pulse shape a GHM signal to confine the frequency spectrum of the GHM signal within a predefined frequency range. A receiver is also included that receives the transmitted GHM signal. The receiver includes a processor for maximizing the GHM signal to noise ratio and minimizing the bit error rate. The GHM signals are also synchronized to establish a relative time for correct interpretation of bit positions.
摘要翻译：通信系统包括：发射机，被配置为脉冲形成GHM信号，以将GHM信号的频谱限制在预定义的频率范围内。还包括接收发送的GHM信号的接收机。接收机包括用于使GHM信噪比最大化并使误码率最小化的处理器。 GHM信号也被同步，以建立相对时间来正确解释位位置。

9. 发明授权

US06498627B1 Use of wideband DTV overlay signals for brevity signaling and public safety 有权
标题翻译：使用宽带数字电视覆盖信号进行简洁信号和公共安全
公开(公告)号：US06498627B1
公开(公告)日：2002-12-24
申请号：US09422441
申请日：1999-10-21
申请人： John Erik Hershey , Mark Lewis Grabb , Kenneth Brakeley Welles, II
发明人： John Erik Hershey , Mark Lewis Grabb , Kenneth Brakeley Welles, II
IPC分类号： H04N521
CPC分类号： H04N21/8146 , H04L27/28 , H04N5/211 , H04N5/44508 , H04N7/08 , H04N21/4432 , H04N21/478 , H04N21/814
摘要： A brevity signaling module for a digital television (DTV) receiver enables the reception of emergency broadcast messages. The overlay signal received at the receiver front end is squared in a squaring loop, producing spectral lines at DC and twice the overlay signal frequency, or 2&ohgr;, where &ohgr;=2&pgr;f and f is the center frequency of the overlay signal. The squared signal is passed through a narrow band filter having a bandwidth sufficient to pass a spectrum containing a plurality of tones 2&ohgr;, 2&ohgr;1, 2&ohgr;2, . . . , 2&ohgr;n, where 2&ohgr;1, 22, . . . , 2&ohgr;n are different frequency tones assigned to different auxiliary functions. The detected tone is used by a control module to determine whether normal multipath processing should be performed or whether this processing should be suppressed and auxiliary functions performed, including turning on the DTV receiver power in order that an emergency broadcast message might be conveyed to persons in the vicinity of the DTV receiver.
摘要翻译：用于数字电视（DTV）接收机的简洁信号模块能够接收紧急广播消息。在接收机前端接收的覆盖信号在平方环中平方，产生DC和两倍叠加信号频率的频谱线，或2omega，其中ω= 2pif，f是叠加信号的中心频率。平方信号通过具有足以通过包含多个音调2omega，2omega1，2omega2的频谱的带宽的窄带滤波器。。。，2omegan，其中2omega1,22。。。，2omegan是分配给不同辅助功能的不同频率音调。检测到的音调由控制模块用于确定是否应执行正常的多路径处理，还是应该抑制该处理和执行辅助功能，包括接通DTV接收机的功率，以便将紧急广播消息传送给 DTV接收机附近。

10. 发明授权

US06417805B1 Three-dimensional channel sounder for DTV receivers 有权
标题翻译：用于DTV接收机的三维通道发声器
公开(公告)号：US06417805B1
公开(公告)日：2002-07-09
申请号：US09422443
申请日：1999-10-21
申请人： John Erik Hershey , Mark Lewis Grabb , Kenneth Brakeley Welles, II
发明人： John Erik Hershey , Mark Lewis Grabb , Kenneth Brakeley Welles, II
IPC分类号： G01S302
CPC分类号： G01S13/003 , H04N5/211 , H04N5/44 , H04N17/00
摘要： A digital television (DTV) receiver is provided with a sounder comprising a wideband transmitter and a plurality of wideband receivers having separately located receiving antennas, so that the sounder is, in effect, a bistatic radar system for any given channel, in order to characterize a significant nearby, indoor reflector. A microprocessor receives the timing information generated by the wideband transmitter impulses and the reflected impulse returns to each of the receiving antennas, and calculates a multipath model representing the three-dimensional location of a significant, nearby scatterer.
摘要翻译：数字电视（DTV）接收机设置有包括宽带发射机和具有单独定位的接收天线的多个宽带接收机的发声器，使得发声器实际上是用于任何给定信道的双基地雷达系统，以便表征一个重要的附近的室内反射器。微处理器接收由宽带发射机脉冲产生的定时信息，并且反射的脉冲返回到每个接收天线，并且计算表示重要的附近散射体的三维位置的多径模型。

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