公开(公告)号：US20130301633A1

公开(公告)日：2013-11-14

申请号：US13467987

申请日：2012-05-09

申请人： Thomas A. Brown ,  Thomas R. Halford ,  Mark L. Johnson

发明人： Thomas A. Brown ,  Thomas R. Halford ,  Mark L. Johnson

IPC分类号： H04J3/06

CPC分类号： H04J3/0652 ,  H04J3/0638 ,  H04J3/0641 ,  H04J3/0647

摘要： Systems and methods are presented for establishing network-wide time synchronization in a time-slotted barrage relay network. In the first phase, nodes obtain coarse, slot-level time synchronization by estimating the time-of-arrival (TOA) of a message that rapidly floods the network via the barrage relay mechanism. In the second phase, fine time synchronization is achieved via a messaging protocol that exchanges TOA information between neighboring nodes.

摘要翻译： 提出了系统和方法，用于在时间延长的拦阻中继网络中建立全网时间同步。 在第一阶段，节点通过估计通过拦阻中继机制迅速洪泛网络的消息的到达时间（TOA）来获得粗略的时隙级时间同步。 在第二阶段，通过在相邻节点之间交换TOA信息的消息传递协议来实现精细的时间同步。

公开(公告)号：US20130301471A1

公开(公告)日：2013-11-14

申请号：US13467999

申请日：2012-05-09

申请人： Thomas A. Brown ,  Thomas R. Halford ,  Mark L. Johnson

发明人： Thomas A. Brown ,  Thomas R. Halford ,  Mark L. Johnson

IPC分类号： H04L12/28

CPC分类号： H04W40/24 ,  H04W28/22 ,  H04W40/04 ,  H04W40/248 ,  H04W40/30

摘要： Systems and methods are presented for topology discovery in a multi-hop ad hoc network. The method operates on two time and distance scales. Nodes periodically transmit messages to their immediate neighbors that enable the discovery of their two-hop network topologies (i.e., within two hops). Less frequently, nodes broadcast messages network-wide that enable the discovery of the global network topology at all nodes. In multi-hop ad hoc network architectures that are characterized by efficient broadcast protocols—e.g., Barrage Relay Networks—the proposed method provides a particularly efficacious means for global topology discovery.

摘要翻译： 提出了在多跳自组织网络中进行拓扑发现的系统和方法。 该方法在两个时间和距离尺度上运行。 节点周期性地向其直接邻居发送消息，使得能够发现它们的两跳网络拓扑（即，在两跳内）。 节点广播消息不太频繁，可以在所有节点上发现全局网络拓扑。 在以跳频中继网络为特征的多跳自组织网络架构中，所提出的方法为全球拓扑发现提供了特别有效的手段。

公开(公告)号：US5842134A

公开(公告)日：1998-11-24

申请号：US535932

申请日：1995-09-28

申请人： Thomas A. Brown ,  Robert Canada

发明人： Thomas A. Brown ,  Robert Canada

IPC分类号： H04H20/67 ,  H04B7/005 ,  H04B7/01

CPC分类号： H04H20/67

摘要： In a wide band radio frequency (RF) simulcast communications system analog voice signals are distributed in a digitized form over high speed data channels and processed as high speed data. A conventional Ericsson, Inc. EDACS.TM. simulcast communications system is improved by altering the apparatus and manner by which "clear voice" (unencrypted analog voice) is distributed from a control point and "aligned" at multiple transmitter sites for simultaneous RF broadcasting. In the improved arrangement, the EDACS.TM. simulcast system inherent digital data stream alignment process produces the requisite time domain alignment for the digitized "clear voice" signals without the need for costly analog audio alignment procedures and equipment.

摘要翻译： 在宽带射频（RF）联播通信系统中，模拟语音信号以高速数据信道以数字化形式分布，并作为高速数据进行处理。 通过改变从控制点分发“清除语音”（未加密的模拟语音）并在多个发射机站“对准”同时进行RF广播的装置和方式来改进传统的爱立信公司EDACS TM联播通信系统。 在改进的布置中，EDACS TM联播系统固有的数字数据流对准过程为数字化的“清晰语音”信号产生必要的时域对准，而不需要昂贵的模拟音频对准过程和设备。

公开(公告)号：US5477539A

公开(公告)日：1995-12-19

申请号：US95858

申请日：1993-07-23

申请人： Thomas A. Brown

发明人： Thomas A. Brown

IPC分类号： H04B7/26 ,  H04J3/06 ,  H04L27/00 ,  H04W4/10 ,  H04W84/08 ,  H04B1/00 ,  H04B5/04 ,  H04J4/00

CPC分类号： H04W84/08 ,  H04J3/0629 ,  H04L27/0008 ,  H04W4/10 ,  H04W76/005

摘要： A "narrow band" public service trunking (PST) simulcast radio frequency transmission system having high-speed and low-speed digital data access capabilities in addition to analog voice operates in the 900 MHz frequency-range, as distinguished from a conventional "wide band" PST system that operates in the 800 MHz frequency range. In a narrow band PST simulcast system having digital access capabilities, the handling of low speed digital data must be accomplished differently than high speed data since it becomes unique to each channel. This would ordinarily require providing an additional data path for each channel, or a wider band width audio path neither of which is feasible or cost effective. Arrangements are therefore provided for the routing of low-speed data to each transmit site via the high-speed digital data channel path for each site and for holding the high-speed data resynchronization circuitry at each site at its previous latency during the transmission of low-speed data, which would otherwise cause erroneous triggering of the resynchronization circuitry.

摘要翻译： 除了模拟语音之外，具有高速和低速数字数据访问能力的“窄带”公共业务中继（PST）联播射频传输系统在900MHz的频率范围内工作，与传统的“宽带 “PST系统在800 MHz频率范围内工作。 在具有数字访问能力的窄带PST联播系统中，低速数字数据的处理必须与高速数据不同，因为它对于每个通道变得独特。 这通常需要为每个通道提供附加的数据路径，或者更宽的带宽音频路径，这两者都不可行或成本有效。 因此，为每个站点经由高速数字数据通道路径将低速数据路由到每个发送站点，并且在低速传输期间将每个站点上的高速数据重新同步电路保持在其先前的等待时间 速度数据，否则会导致重新同步电路的错误触发。

公开(公告)号：US5236309A

公开(公告)日：1993-08-17

申请号：US693256

申请日：1991-04-29

申请人： Gary S. Van Heusden ,  Thomas A. Brown ,  Lloyd W. Smith ,  Ralph R. Barber ,  Robert M. Lloyd ,  Phillip R. Ratliff ,  Wilmott G. Brown ,  Albert F. Le Breton ,  David A. Lutz

发明人： Gary S. Van Heusden ,  Thomas A. Brown ,  Lloyd W. Smith ,  Ralph R. Barber ,  Robert M. Lloyd ,  Phillip R. Ratliff ,  Wilmott G. Brown ,  Albert F. Le Breton ,  David A. Lutz

IPC分类号： F01D5/26 ,  F01D5/30

CPC分类号： F01D5/323 ,  F01D5/26

摘要： A turbine blade assembly composed of a rotor which is rotatable about a turbine axis of rotation and a plurality of turbine blades supported by the rotor, each blade having a root and the rotor being provided with a groove shaped for holding each root in a manner such that the root and groove have mutually contacting surfaces which apply a radially inwardly directed restraining force to the root, the root further having a bottom facing the turbine axis and the groove having a base which is located radially inwardly of, and faces, the root bottom. The mutually contacting surfaces of the root and the groove are pressed together by means of at least one disc spring compressed between the root bottom and the groove base.

摘要翻译： 一种涡轮机叶片组件，其由围绕涡轮机转动轴线旋转的转子和由转子支撑的多个涡轮机叶片组成，每个叶片具有根部，转子设置有凹槽，该槽形成用于以这样的方式保持每个根部 根部和凹槽具有相互接触的表面，其向根部施加径向向内的约束力，根部还具有面向涡轮机轴线的底部，并且凹槽具有位于底部的径向内侧并面向根部底部的基部 。 根部和槽的相互接触的表面通过压缩在根底部和槽底部之间的至少一个盘簧被压在一起。

公开(公告)号：US5020135A

公开(公告)日：1991-05-28

申请号：US30743

申请日：1987-03-27

申请人： Kaspar Kasparian ,  John D. Ide ,  Thomas A. Brown ,  Aaron S. Rogers ,  John P. Fussell ,  Ming C. Hsu

发明人： Kaspar Kasparian ,  John D. Ide ,  Thomas A. Brown ,  Aaron S. Rogers ,  John P. Fussell ,  Ming C. Hsu

IPC分类号： H04L29/14 ,  H04B1/40 ,  H04W88/02

CPC分类号： H04W88/02

摘要： A Computerized Mobile Two-Way Radio System is provided having microprocessor enhanced capabilities and versatility for wide area/multiple region two-way radio networks with multiple categories of users and adaptability to multiple international standards and mobile radio equipment configurations. The main elements of the system consist of (1) a microprocessor-based Control Unit, (2) a Digital Serial Interface/Link and (3) a microprocessor-based Convertible Transceiver Unit. The Control Unit provides many facilities and capabilities for the operator and the system in compact form. The Interface/Link provides a two-way path for serial data consisting of digitized audio and digital command and status signals. The Transceiver Unit is designed for operation and control over the Digital Serial Interface/Link. The system allows the addition of many options, capabilities and peripheral/extenal devices including builtin front panel or remote programmability, built-in autodiagnostics, remote takeover of controls, remote memory-dump, remote diagnostics, program cloning capability, voting on all channels, 512 channel (expandable) programmability within 16 groups (expandable), triple levels of priority within each group (expandable), supreme over-ride channel, RS232C Interface Ports for data applications, phone patch for voice and for world-wide telephone linkable devices and other capabilities.

公开(公告)号：US4796167A

公开(公告)日：1989-01-03

申请号：US130150

申请日：1987-12-08

申请人： Thomas A. Brown ,  Kirk A. Martin

发明人： Thomas A. Brown ,  Kirk A. Martin

IPC分类号： F21V31/00 ,  F21V33/00 ,  G08B5/36 ,  G08B5/38

CPC分类号： G08B5/002 ,  B63C9/21 ,  G08B5/38 ,  B63B2209/02 ,  Y10S116/07

摘要： A water activated locus identifying device for attachment to articles apt to be lost in a body of water wherein the water activation serves to operate an electric light thereby making the locus of the article more easily identified.

摘要翻译： 水活化基因座识别装置，用于附着到易于在水体中损失的物品，其中水活化用于操作电光，从而使得物品的轨迹更容易识别。

公开(公告)号：US4464607A

公开(公告)日：1984-08-07

申请号：US305653

申请日：1981-09-25

申请人： William Peil ,  Thomas A. Brown ,  James E. Harris

发明人： William Peil ,  Thomas A. Brown ,  James E. Harris

IPC分类号： H05B41/18 ,  H05B35/00 ,  H05B41/288 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36

CPC分类号： H05B41/46 ,  H05B35/00 ,  H05B41/2885 ,  Y02B20/202 ,  Y10S315/05 ,  Y10S315/07

摘要： An energy efficient lighting unit is described designed for functional similarity to the incandescent light used in the home. The light unit utilizes a metal vapor arc lamp as the main source of light supplemented by a standby filamentary light source. The lighting unit includes means for converting 60 hertz ac to dc, and a dc energized operating network comprising an inverter operating at above audible frequencies (e.g. 30-40 KHz). The operating network produces a sequence for the arc lamp and the standby filamentary light source appropriate to each operating state of the arc lamp.

摘要翻译： 描述了一种设计用于与家用白炽灯功能相似的节能照明单元。 灯单元使用金属蒸汽弧灯作为补充有备用丝状光源的主要光源。 照明单元包括用于将60赫兹交流转换为直流的装置，以及包括在上述可听频率（例如30-40KHz）下工作的逆变器的直流通电操作网络。 操作网络产生适用于弧光灯的每个操作状态的弧光灯和备用丝光源的顺序。

公开(公告)号：US4453094A

公开(公告)日：1984-06-05

申请号：US393696

申请日：1982-06-30

申请人： William Peil ,  Thomas A. Brown ,  Marc A. Dissosway

发明人： William Peil ,  Thomas A. Brown ,  Marc A. Dissosway

IPC分类号： H03F3/345 ,  H03F3/34 ,  H03F3/347 ,  H03K5/08 ,  H03K19/003 ,  G11C27/00 ,  H03K17/04 ,  H03K19/017

CPC分类号： H03K5/08

摘要： The present invention relates to a threshold amplifier suited to integrated circuit fabrication of a process employing CMOS technology. The threshold amplifier is designed to sense current producing a first or a second logic level as a function of a current threshold. The amplifier comprises a p-channel device and a n-channel device serially connected across the bias supply. The gate to source voltages of the two devices are respectively controlled by a diode connected p-channel device similarly serially connected across the bias supply with a diode connected n-channel device, the source of the latter being returned to ground via a current carrying resistance also in the second series path. The output level which is taken at the drain inter-connection between the devices in the first series path depends on the relative conductivity of the two devices which is in turn affected by the induced voltage drop in the source connected resistance in the second series path. The threshold voltage may be controlled by the geometry ratio between the n-channel devices, and the current setting in the second series path.

摘要翻译： 本发明涉及适用于采用CMOS技术的工艺的集成电路制造的阈值放大器。 阈值放大器被设计为感测产生作为电流阈值的函数的第一或第二逻辑电平的电流。 放大器包括串行连接在偏置电源上的p沟道器件和n沟道器件。 两个器件的栅极到源极电压分别由二极管连接的p沟道器件控制，二极管连接的p沟道器件类似地串联连接在偏置电源上，并连接有二极管连接的n沟道器件，后者的源极通过载流电阻返回到地 也在第二个系列路径。 在第一串联路径中的器件之间的漏极互连处的输出电平取决于两个器件的相对电导率，这两个器件又受第二串联路径中的源极连接电阻中的感应电压降的影响。 阈值电压可以通过n沟道器件之间的几何比率和第二串联路径中的当前设置来控制。

公开(公告)号：US4036095A

公开(公告)日：1977-07-19

申请号：US549305

申请日：1975-02-12

申请人： Joseph B. Huber ,  Thomas A. Brown

发明人： Joseph B. Huber ,  Thomas A. Brown

IPC分类号： B26D7/26

CPC分类号： B26D7/2614 ,  Y10T83/9399 ,  Y10T83/9447 ,  Y10T83/9471 ,  Y10T83/9478 ,  Y10T83/9486 ,  Y10T83/97

摘要： The present invention concerns anarrangement for shearing blades employing cemented hard carbide material inserts for use in shearing machines of both the rotary and guillotine type.

摘要翻译： 本发明涉及使用用于旋转和闸门式剪切机的硬质合金材料插入件的剪切刀片的安排。