公开(公告)号：US09817253B2

公开(公告)日：2017-11-14

申请号：US14747084

申请日：2015-06-23

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Robert C. Hoffman ,  Shizhuo Yin

IPC: H04B10/04 ,  G02F1/03 ,  G02F1/00 ,  G02B5/122

CPC classification number: G02F1/0327 ,  G02B5/122 ,  G02F1/0018 ,  G02F1/0311 ,  G02F1/0316

Abstract: An electro-optic modulator comprising at least one nanodisordered potassium tantalate niobate crystal; first and second conductors operatively connected to the nanodisordered potassium tantalate niobate crystal adapted to be connected to a voltage source to modulate light passing there through; whereby light is modulated by passing through the nanodisordered potassium tantalate niobate crystal. A method for modulating light comprising providing at least one at least one nanodisordered potassium tantalate niobate crystal; providing first and second conductors operatively connected to the nanodisordered potassium tantalate niobate crystal adapted to be connected to a voltage source to modulate light passing there through; providing an interrogating light beam striking at least one nanodisordered potassium tantalate niobate crystal; modulating light passing through the nanodisordered potassium tantalate niobate crystal; and receiving a modulated light beam.

公开(公告)号：US20170207858A1

公开(公告)日：2017-07-20

申请号：US15000556

申请日：2016-01-19

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Robert J. Drost ,  Michael Brodsky

IPC: H04B10/70

CPC classification number: H04B10/70

Abstract: A method for determining a network configuration for the delivery of entangled photons individually to a plurality of users, the network comprising a plurality of inputs, switches, and outputs operatively connected by optical fibers; the plurality of switches being switchable between two states; the method comprising: determining the minimum number of switches necessary to deliver entangled photon pairs from a predetermined number of sources to a predetermined number of users, minimizing the loss experienced by an entangled photon passing through the switches by minimizing the number of switches that any one photon passes through by selecting only nondominated switch configurations; determining the minimum number of equivalent network switch configurations and eliminating all but one of the equivalent network switch configurations; and selecting an optimum network configuration by which the plurality of inputs and the plurality of outputs are operatively interconnected using a minimum number of switches in any one route.

公开(公告)号：US09689966B2

公开(公告)日：2017-06-27

申请号：US15086125

申请日：2016-03-31

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Thyagaraju Damarla

IPC: G01S5/22 ,  H04R29/00 ,  H04R3/00

CPC classification number: G01S5/22 ,  H04R3/005 ,  H04R2499/13

Abstract: A system and method for identifying the location of gunfire from a moving object in which at least two spaced apart microphones are positioned on the moving object. The output from the microphones is decomposed into intrinsic mode functions by using empirical mode decomposition. A transient pulse is then identified in the intrinsic mode function representative of the gunfire. The location of the origin of the gunfire is then determined from the transient pulses through multilateration using time difference of arrival of the transient pulses by the microphones.

公开(公告)号：US20170090069A1

公开(公告)日：2017-03-30

申请号：US14866153

申请日：2015-09-25

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Stephen F. Kirby

IPC: G01W1/10 ,  H04W4/02

CPC classification number: G01W1/10 ,  H04W4/02 ,  Y02A90/14

Abstract: A method and system configured to provide a weather forecast for a selected zone is provided. The method and system is configured to receive meteorological reports and locally sensed measurements. The information is transmitted to a weather model preprocessor disposed on the device which generates an analysis field. This information is passed to the weather model which is an executable program also disposed on the device. The weather model processes the analysis field generated by meteorological reports, large-scale initialization data and in-situ sensor values to generate an initial weather forecast. The weather model updates the initial weather forecast with real-time, high-resolution atmospheric measurements to generate a weather forecast more representative of the user's zone than that available from Internet/media outlets. Furthermore, because the weather model is run on the mobile device itself, staleness of the forecast will no longer be an issue, as forecasts can be generated on demand.

公开(公告)号：US20170074609A1

公开(公告)日：2017-03-16

申请号：US15050756

申请日：2016-02-23

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Alexander E. Michlin

IPC: F41A3/46 ,  F41A21/48

CPC classification number: F41A3/46 ,  F41A3/26 ,  F41A21/482

Abstract: A breech assembly for an automatic weapon having a barrel extension aligned with and extending outwardly from the rifle bore. The barrel extension has a throughbore aligned with the rifle bore and a non-circular locking recess at a rear end of fee barrel extension. The barrel extension also includes an internal thread in the throughbore. An elongated bolt includes an external thread complementary to the infernal thread hi the barrel extension. The bolt is mounted to a bolt carrier that is longitudinally slidably mounted to the gun body. Longitudinal movement of the bolt carrier simultaneously longitudinally and rotatably drives the bolt so that the bolt thread is threaded into the barrel extension.

Abstract translation: 一种用于自动武器的后枪组件，其具有与步枪孔对准并从其向外延伸的枪管延伸部。 筒形延伸部具有与步枪孔对准的通孔和在收费筒延伸的后端处的非圆形锁定凹部。 枪管延伸部还包括在通孔中的内螺纹。 细长的螺栓包括与枪管延伸部中的地狱螺纹互补的外螺纹。 螺栓安装到纵向可滑动地安装到枪体的螺栓托架上。 螺栓载体的纵向运动同时纵向和可旋转地驱动螺栓，使得螺栓螺纹拧入筒体延伸部。

公开(公告)号：US20170064580A1

公开(公告)日：2017-03-02

申请号：US14729452

申请日：2015-06-03

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： King F. Lee ,  Ronald G. Tobin ,  William A. Walsh ,  Peter H. Lawrence

IPC: H04W28/04 ,  H04W4/22 ,  H04W28/26

CPC classification number: H04W4/22 ,  H04W4/90 ,  H04W74/0816

Abstract: A system for wireless communication comprising a plurality of wireless stations; each station configured to receive and transmit communications on at least one channel, each station comprising at least one processor and at least one memory operatively connected to the at least one processor; the at least one processor being configured to sense communications on the at least one channel and to wait a predetermined number of units of delay before transmitting a communication on the channel; the predetermined number of units of delay before transmission of the next communication being operatively associated with communications by the respective units. A method for controlling access in a wireless communication system comprising providing a wireless network comprising a plurality of communication units configured to transmit and/or receive communications over a channel; each communication unit being operatively associated with a delay counter and a memory containing reservations for a communication unit to transmit.

Abstract translation: 一种用于包括多个无线站的无线通信系统; 每个站被配置为在至少一个信道上接收和发送通信，每个站包括至少一个处理器和至少一个可操作地连接到所述至少一个处理器的存储器; 所述至少一个处理器被配置为感测所述至少一个信道上的通信，并且在所述信道上发送通信之前等待预定数量的延迟单元; 在下一个通信的传输之前的延迟单元的预定数量与各个单元的通信可操作地相关联。 一种用于在无线通信系统中控制接入的方法，包括提供无线网络，所述无线网络包括被配置为通过信道发送和/或接收通信的多个通信单元; 每个通信单元可操作地与延迟计数器和包含用于通信单元进行发送的预留的存储器相关联。

公开(公告)号：US09581402B2

公开(公告)日：2017-02-28

申请号：US14295642

申请日：2014-06-04

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Michael A. Minnicino, II

IPC: F42B30/02 ,  F41A21/16

CPC classification number: F41A21/16 ,  F42B30/02

Abstract: A projectile for use with a tapered gun bore having a tapered bore section between the breech and the muzzle. The projectile includes an elongated body having a cylindrical bulkhead with a diameter substantially equal to the large caliber section of the gun bore. A tapered ogive extends from the bulkhead to a front end of the projectile while a tapered tail extends from a rear end of the projectile to the cylindrical bulkhead. A plurality of circumferentially spaced forward grooves extend forwardly from the bulkhead and to a point short of the front end while a plurality of circumferentially spaced rearward grooves extend rearwardly from said midsection and to a point short of a rear end of the body.

Abstract translation: 用于锥形枪孔的抛射体，其在后膛和枪口之间具有锥形孔部分。 抛射体包括具有圆柱形隔板的细长主体，其直径基本上等于枪孔的大口径部分。 锥形尾端从舱壁延伸到抛射体的前端，而锥形尾部从弹丸的后端延伸到圆柱形舱壁。 多个周向间隔开的前槽从隔板向前延伸到不足前端的点，而多个周向间隔开的后槽从所述中部向后延伸到与本体后端相对的点。

公开(公告)号：US20160349026A1

公开(公告)日：2016-12-01

申请号：US14454250

申请日：2014-08-07

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Luisa D. Fairfax ,  Frank E. Fresconi ,  James M. Maley

IPC: F42B10/26 ,  F41G7/00

CPC classification number: F42B10/26 ,  F41G7/006 ,  F41G7/008 ,  F41G7/36 ,  G01C21/165

Abstract: A method and apparatus is provided that provides accurate navigation for spin-stabilized projectiles in a GPS-denied environment using low cost measurement sensors, by application of flight dynamics in real-time state estimation algorithms.

Abstract translation: 提供了一种方法和装置，其通过在实时状态估计算法中应用飞行动力学，在使用低成本测量传感器的GPS拒绝环境中为旋转稳定的射弹提供准确的导航。

公开(公告)号：US20160341814A1

公开(公告)日：2016-11-24

申请号：US15175886

申请日：2016-06-07

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Lam H. Nguyen ,  Trac D. Tran

IPC: G01S7/02 ,  G01S13/90

CPC classification number: G01S7/023 ,  G01S13/0209 ,  G01S13/90 ,  H04B1/71632 ,  H04B17/345 ,  H04L25/03305 ,  H04L27/0004

Abstract: A system for reception of electromagnetic waves in a spectrum in which interference with radio frequencies of other electronics devices occurs comprising a transmitter; at least one receiver configured to receive the received signal; each received signal organized into a digital vector; at least one memory portion configured to store a plurality of received signals in a vector form; the vectors being combined into a matrix, each vector of the matrix being a digital data record representing a received signal; at least one processor operatively connected to the at least one memory portion; the at least one processor configured to estimate that portion of the received signal attributable to noise; the at least one processor operating to jointly estimate a minimal number of distinctive noise patterns and minimize the simplicity of the data of interest; the at least processor operating to process the noise and data of interest separately.

Abstract translation: 一种在其中发生与其他电子设备的射频的干扰的频谱中接收电磁波的系统，包括发射机; 至少一个接收器，被配置为接收所接收的信号; 每个接收到的信号组织成一个数字矢量; 至少一个存储器部分被配置为以矢量形式存储多个接收信号; 所述矢量被组合成矩阵，所述矩阵的每个矢量是表示接收信号的数字数据记录; 至少一个处理器可操作地连接到该至少一个存储器部分; 所述至少一个处理器被配置为估计归因于噪声的所述接收信号的所述部分; 所述至少一个处理器操作以共同估计最小数量的特征噪声模式并使感兴趣的数据的简单化最小化; 该至少处理器分别操作以处理感兴趣的噪声和数据。

公开(公告)号：US20160300973A1

公开(公告)日：2016-10-13

申请号：US15180397

申请日：2016-06-13

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Paul Shen ,  Lee Ellen Rodak ,  Chad Stephen Gallinat ,  Anand Venktesh Sampath ,  Michael Wraback

IPC: H01L31/107 ,  H01L31/0304 ,  H01L31/0296 ,  H01L31/0352 ,  H01L31/0336 ,  H01L31/18

CPC classification number: H01L31/1075 ,  H01L31/0296 ,  H01L31/03044 ,  H01L31/0336 ,  H01L31/035272 ,  H01L31/03529 ,  H01L31/18

Abstract: A photodiode comprising a substrate; first semiconducting region; first contact; second region comprising an absorption region for the photons having a predetermined energy range; the second region being formed of a semiconductor having a high surface or interface recombination velocity; a third semiconducting region transparent at the predetermined photon energy range suitable for making an operative connection to a second contact; the second and third regions forming a second interface; the first and second regions forming a first interface; the second region being configured such that biasing the photodiode results in depletion of the second region from the first interface to the second interface or at least one of the absorption depth and the sum of the absorption depth and diffusion length from the second interface; the depletion resulting in the creation of an electric field whereby photogenerated carriers are collected by drift and a method of making the foregoing.

Abstract translation: 包括基板的光电二极管; 第一半导体区; 第一次接触 第二区域包括具有预定能量范围的光子的吸收区域; 所述第二区域由具有高表面或界面复合速度的半导体形成; 在预定的光子能量范围内透明的第三半导体区域，其适于进行与第二接触件的操作连接; 所述第二和第三区域形成第二界面; 所述第一和第二区域形成第一界面; 所述第二区域被配置为使得偏置所述光电二极管导致所述第二区域从所述第一界面到所述第二界面的耗尽或所述吸收深度和所述第二界面的吸收深度和扩散长度的总和中的至少一个; 导致产生电场的耗尽，由此通过漂移收集光生载流子，以及制造上述方法。