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公开(公告)号：US4739398A
公开(公告)日：1988-04-19
申请号：US859134
申请日：1986-05-02
申请人： William L. Thomas , Steven J. Sletten , John W. Mathews, Jr. , Jeffrey C. Swinehart , Michael W. Fellinger , John E. Hershey , George P. Hyatt , Robert F. Kubichek
发明人： William L. Thomas , Steven J. Sletten , John W. Mathews, Jr. , Jeffrey C. Swinehart , Michael W. Fellinger , John E. Hershey , George P. Hyatt , Robert F. Kubichek
CPC分类号： G06K9/00711 , G11B27/28 , H04H60/37 , H04H60/58 , H04H60/59
摘要： A method, apparatus and system are provided for recognizing broadcast segments, such as commercials, in real time by continuous pattern recognition without resorting to cues or codes in the broadcast signal. Each broadcast frame is parametized to yield a digital word and a signature is constructed for segments to be recognized by selecting, in accordance with a set of predefined rules, a number of words from among random locations throughout the segment and storing them along with offset information indicating their relative locations. As a broadcast signal is monitored, it is parametized in the same way and the library of signatures is compared against each digital word and words offset therefrom by the stored offset amounts. A data reduction technique minimizes the number of comparisons required while still maintaining a large database.
摘要翻译： 提供了一种方法，装置和系统，用于通过连续模式识别实时地识别诸如商业广告的广播片段，而无需诉诸广播信号中的提示或代码。 每个广播帧被参数化以产生数字字，并且通过根据一组预定义规则从整个段中的随机位置中选择一组单词并将其与偏移信息一起存储来构建用于要被识别的段的签名 指示他们的相对位置。 当广播信号被监视时，以相同的方式对其进行参数化，并且通过存储的偏移量将特征库与每个数字字和与其偏移的字进行比较。 数据缩减技术最大限度地减少了仍然维护大型数据库所需的比较数量。
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公开(公告)号：US08296037B2
公开(公告)日：2012-10-23
申请号：US12143420
申请日：2008-06-20
IPC分类号： F01D11/08
CPC分类号： F01D11/20 , F01D11/24 , F02C9/00 , F05D2270/07 , F05D2270/305
摘要： Methods, systems, and apparatus for controlling a turbine clearance in an aircraft engine are provided. A method includes activating a turbine clearance control based on a flight phase of an aircraft using the aircraft engine, and adjusting the turbine clearance based on a preselected turbine clearance value.
摘要翻译： 提供了用于控制飞机发动机中的涡轮间隙的方法，系统和装置。 一种方法包括基于使用飞行器发动机的飞行器的飞行阶段激活涡轮机间隙控制，以及基于预选的涡轮机间隙值来调节涡轮机间隙。
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公开(公告)号：US20100153419A1
公开(公告)日：2010-06-17
申请号：US12337090
申请日：2008-12-17
申请人： Wolfgang Daum , Ajith Kuttannair Kumar , Gerald Rose , Glenn Shaffer , Tom Otsubo , Gerald Hess, JR. , John E. Hershey
发明人： Wolfgang Daum , Ajith Kuttannair Kumar , Gerald Rose , Glenn Shaffer , Tom Otsubo , Gerald Hess, JR. , John E. Hershey
CPC分类号： G06F17/30575
摘要： Systems are provided for efficiently managing the effects of a change to a transportation system's state. One example system comprises a plurality of distributed data input and data output terminals, the distributed data input terminal configured to automatically generate data related to a first aspect of transportation system operation, at least one of a distributed database and a synchronized database configured to store data, a plurality of distributed computational engines configured to receive data from at least one database, and based on the data received, automatically manage operations of a second, different aspect of the transportation system operations, and a communications network linking the data input terminals, the data output terminals, the databases, and the computational engines, wherein the change to the transportation system's state is initiated by the data generated at the distributed input terminals.
摘要翻译： 提供系统以有效地管理对交通系统状态变化的影响。 一个示例性系统包括多个分布式数据输入和数据输出终端，分布式数据输入终端被配置为自动产生与运输系统操作的第一方面有关的数据，分布式数据库和被配置为存储数据的同步数据库中的至少一个 多个分布式计算引擎，被配置为从至少一个数据库接收数据，并且基于所接收的数据，自动管理运输系统操作的第二个不同方面的操作，以及链接数据输入终端的通信网络， 数据输出终端，数据库和计算引擎，其中由分布式输入终端产生的数据启动对运输系统状态的改变。
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公开(公告)号：US5563906A
公开(公告)日：1996-10-08
申请号：US407560
申请日：1995-03-20
CPC分类号： H04B1/69
摘要： The present invention provides a novel Geometric Harmonic Modulation (GHM) method. The GHM method functions in two modes, a preamble mode and a traffic mode. During the preamble mode, n+1 frequencies are each offset by a predetermined phase in a transmit unit and passed through a channel to a receive unit. The set of phases is used as the spreading code in the transmit unit, and also acts as an `address` of intended receive units. The receive unit monitors preamble signals to determine the phases. When it recognizes a set of phases, or `address`, which pertains to itself, the receive unit stores the phases and uses these phases to despread and decode the appended message. After the preamble mode is finished, the GHM modulator enters the traffic mode and requests the message to be transmitted from the message source. A traffic carrier waveform is created by multiplying tones, each having its specific phase. An analog or binary message is encoded by modulating the traffic carder waveform. The receive unit detects a preamble carrier and recovers the particular preamble phases to be used as the despreading `key`. The receive unit then employs the phases in despreading the received signal to recover the transmitted binary message.
摘要翻译： 本发明提供了一种新颖的几何谐波调制（GHM）方法。 GHM方法在两种模式中起作用，即前导码模式和流量模式。 在前导码模式期间，n + 1个频率各自在发送单元中被预定的相位偏移并且通过信道被传送到接收单元。 该组相位被用作发送单元中的扩展码，并且还用作预期接收单元的“地址”。 接收单元监视前置信号以确定相位。 当它识别与本身相关的一组相位或“地址”时，接收单元存储相位并使用这些相位对所附加的消息进行解扩和解码。 在前导码模式完成之后，GHM调制器进入业务模式，并请求消息从消息源发送。 通过乘以每个具有其特定相位的音调来创建交通载波波形。 模拟或二进制消息通过调制业务量卡波形进行编码。 接收单元检测前同步码载波并恢复要用作解扩“密钥”的特定前同步码相位。 然后，接收单元采用解扩接收信号的相位来恢复发送的二进制消息。
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5.发明授权Motor current signal processor including phase locked and delta modulated loops 失效电机电流信号处理器包括锁相和增量调制环路
公开(公告)号：US5550879A
公开(公告)日：1996-08-27
申请号：US521501
申请日：1995-08-30
申请人： John E. Hershey
发明人： John E. Hershey
CPC分类号： H03L7/06
摘要： A signal processor includes a phase looked loop for estimating a largest sine wave component phase and frequency element of an incoming analog signal to provide a component signal and a delta-adjusted subtraction loop for removing a largest sine wave component of the incoming signal. The subtraction loop includes a gain adapter for monitoring an output signal and calculating a gain for minimizing the magnitude of the output signal, a multiplier for multiplying the gain by the component signal to provide a multiplied signal, and a subtractor for subtracting the multiplied signal from the incoming analog signal and supplying the output signal to the gain adapter. The gain adapter in one embodiment includes an algorithm capable of repeating the following sequence during a predetermined period of time: adapting a gain by adding a voltage limit; calculating a present maximum absolute value of a subtracted signal (the output signal) over a measurement cycle; comparing the present maximum absolute value with a previous maximum absolute value and, if the present maximum absolute value is greater, changing the sign of the voltage limit, and adapting the gain by adding the voltage limit; multiplying the voltage limit by a fraction having a value less than one; and changing the previous maximum absolute value to the present maximum absolute value.
摘要翻译： 信号处理器包括用于估计输入模拟信号的最大正弦波分量相位和频率元素以提供分量信号的相位环路和用于去除输入信号的最大正弦波分量的增量调整减法环路。 减法回路包括增益适配器，用于监视输出信号并计算用于最小化输出信号的幅度的增益;乘法器，用于将增益乘以分量信号以提供相乘的信号;以及减法器，用于从 输入模拟信号并将输出信号提供给增益适配器。 一个实施例中的增益适配器包括能够在预定时间段内重复以下序列的算法：通过添加电压限制来适配增益; 在测量周期上计算减去的信号（输出信号）的当前最大绝对值; 将当前最大绝对值与先前最大绝对值进行比较，如果当前最大绝对值较大，则改变电压限制的符号，并通过加上电压限制来适应增益; 将电压极限乘以具有小于1的值的分数; 并将先前的最大绝对值改变为当前的最大绝对值。
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公开(公告)号：US5497397A
公开(公告)日：1996-03-05
申请号：US267346
申请日：1994-06-29
申请人： John E. Hershey , Gary J. Saulnier
发明人： John E. Hershey , Gary J. Saulnier
CPC分类号： H04L27/2602
摘要： Data words are transmitted over a radio channel with a novel modulation scheme which transmits data in parallel. An entire data word is modulated by separating a carrier frequency band into a number of discrete `tones`. Tone T.sub.1 is set to a zero phase shift in order to provide timing in synchronization of the signal. The remaining tones are phase shifted according to a predetermined convention, thereby encoding the bits of the data word. The phase shifts for all tones comprises a spectrum which is transmitted to a receiver simultaneously. A receiver monitors tone T.sub.1 for zero phase shifts to provide synchronization of the signal. The remaining tones are analyzed for their phase shift to provide bits which are assembled into a transmitted data word. Since the bits are transmitted in parallel as the data word, as opposed to conventional modulation schemes, the throughput is increased.
摘要翻译： 数据字通过无线电信道通过并行传输数据的新型调制方案传输。 通过将载波频带分离成多个离散的“音调”来调制整个数据字。 音调T1被设置为零相移，以提供信号同步的定时。 剩余的音调根据预定的约定相移，从而对数据字的比特进行编码。 所有音调的相移包括同时发送到接收机的频谱。 接收机监视音调T1用于零相移以提供信号的同步。 分析剩余的音调以进行相移，以提供组合成传输数据字的位。 由于与传统调制方案相反，这些比特作为数据字并行发送，因此增加了吞吐量。
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公开(公告)号：US5481535A
公开(公告)日：1996-01-02
申请号：US267348
申请日：1994-06-29
申请人： John E. Hershey
发明人： John E. Hershey
IPC分类号： H04L12/56
CPC分类号： H04W40/28 , H04L1/1877 , H04L2001/0093 , H04L45/32 , H04W4/06 , H04W8/26
摘要： A highly fault tolerant system for datagram communication of information in the form of a message packet employs a distributed network of transmitter/receivers `transceivers`, which interact with `bridge transceivers` which are transceivers connected to a wired network, and wired nodes each having a unique identification ("ID") number. An initiating unit, which may be a transceiver, bridge transceiver or wired node, creates a message packet having an ID of an intended destination unit. If initiated from a transceiver, the message packet finds its way to a wired network by broadcasting the message packet to local transceivers. The transceivers determine valid message packets which have not expired, not been received before and were transmitted without errors. If the message packet is valid and the transceiver ID does not match its internal ID, the transceiver broadcasts the valid message packet to other local transceivers. The transceivers which receive the message packet repeat the process. The message then finds its way to a bridge transceiver connected to a wired network. A `NODE LOC` is embedded in the message packet identifying a closest wired node. The message is routed through the wired network to the wired node and then transmitted as described above to a destination unit by radio signals.
摘要翻译： 消息分组形式的信息的数据报通信的高度容错系统采用发射机/接收机收发机的分布式网络，其与作为连接到有线网络的收发器的“桥接收机”进行交互，每个有线节点具有 唯一身份证件（“ID”）号码。 可以是收发器，桥收发器或有线节点的发起单元创建具有预期目的地单元的ID的消息分组。 如果从收发器发起，消息包通过向本地收发器广播消息包来找到有线网络的方式。 收发器确定没有过期的有效消息分组，未被接收并且没有错误地传送。 如果消息包有效并且收发器ID与其内部ID不匹配，则收发器将有效的消息包广播到其他本地收发器。 接收消息包的收发器重复该过程。 然后，该消息找到连接到有线网络的桥收发器的方式。 “NODE LOC”嵌入在标识最近有线节点的消息包中。 消息通过有线网络路由到有线节点，然后通过无线电信号如上所述地传送到目的地单元。
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公开(公告)号：US5166953A
公开(公告)日：1992-11-24
申请号：US605714
申请日：1990-10-30
IPC分类号： H04B1/7136 , H04B1/715 , H04K3/00
CPC分类号： H04B1/7136 , H04B1/715 , H04K3/25 , H04K3/827 , H04B2001/71362 , H04B2001/7152
摘要： A countermeasure to a partial-band follower jammer for frequency hopping spread spectrum communication systems employs an M-ary orthogonal frequency shift keyed (FSK) signaling system having q frequency channels available for hopping. During each signaling interval, the transmitter and receiver operate in either a conventional or unconventional mode. The conventional mode is selected by the transmitter and the receiver with a pseudorandom probability p.sub.c. In this mode, the transmitter transmits one of r tones within the corresponding hop (i.e., within one of q channels), and log.sub.2 r information bits are conveyed, while the receiver comprises a dehopper followed by noncoherent matched filters. The unconventional mode is selected with probability 1-p.sub.c. In this mode, the transmitter randomly chooses one of the r tones and transmits it in one of r channels within each hop, where the r channels are selected pseudorandomly. In the unconventional mode, log.sub.2 r information bits are transmitted and the receiver comprises a bank of r radiometers.
摘要翻译： 用于跳频扩频通信系统的部分带跟随器干扰器的对策采用具有可用于跳频的q个频率信道的M进制正交频移键控（FSK）信令系统。 在每个信令间隔期间，发射机和接收机以常规或非常规模式工作。 常规模式由具有伪随机概率pc的发射机和接收机选择。 在该模式中，发射机在对应的跳频（即，在q个信道之一内）之间发送r个音调中的一个，并且传送log2r信息比特，而接收机包括后卫非相干匹配滤波器。 非常规模式以概率1-pc选择。 在这种模式下，发射机随机选择一个r个音调，并在每个跳频中的一个r个信道中发送，其中r个信道被伪随机地选择。 在非常规模式下，发送log2r信息位，并且接收器包括一组r辐射计。
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9.发明授权System, method and computer software code for remotely assisted operation of a railway vehicle system 有权铁路车辆系统的远程辅助操作的系统，方法和计算机软件代码公开(公告)号：US09120494B2
公开(公告)日：2015-09-01
申请号：US11566384
申请日：2006-12-04
IPC分类号： B61L3/12
CPC分类号： B61L3/127
摘要： A method for operating a train having at least one locomotive vehicle, the method including controlling operation of the train via a first crew member located on-board the locomotive unit, providing information that may be required for operation of the train to a second crew member located remote from the first crew member, and using the information to enable the second crew member to assist the first crew member in the controlling of the train.
摘要翻译： 一种用于操作具有至少一个机车的列车的方法，所述方法包括经由位于机车单元上的第一机组人员来控制列车的操作，提供列车运行所需的信息给第二机组人员 位于远离第一机组成员的位置，并且使用该信息使第二机组成员协助第一机组成员控制列车。
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10.发明授权公开(公告)号：US07140577B2
公开(公告)日：2006-11-28
申请号：US10820499
申请日：2004-04-08
IPC分类号： B61L7/00
CPC分类号： B61L27/0005 , B61L7/088
摘要： A system for remote control of an electrically operated railroad wayside equipment having a power supply for powering the wayside equipment. a central controller provides central control signals. A transmitter associated with the controller receives the control signals and transmits communications signals corresponding to the control signals. A remote equipment controller controls operation of the wayside equipment in response thereto.
摘要翻译： 一种用于远程控制电动铁路路边设备的系统，其具有用于向旁路设备供电的电源。 中央控制器提供中央控制信号。 与控制器相关联的发射器接收控制信号并发送与控制信号对应的通信信号。 远程设备控制器响应于此控制路边设备的操作。
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