公开(公告)号：US20190020367A1

公开(公告)日：2019-01-17

申请号：US15626688

申请日：2017-06-19

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.

Inventor： ANTHONY J. CRAWFORD ,  CHRISTOPHER N. PETERS ,  NATHANIEL J. CONWAY ,  KURT M. FOLEY ,  JOHN C. JOSEPH ,  MASON TREMBLAY ,  DANIEL W. GLASS

IPC: H04B1/16 ,  H04B1/26 ,  H03H7/32 ,  H03H11/04

CPC classification number: H04B1/1638 ,  H03H7/325 ,  H03H11/04 ,  H03K9/06 ,  H04B1/26

Abstract: An apparatus for monitoring radio frequency (RF) signals is disclosed. The apparatus includes an RF splitter, a set of track-and-hold circuits, a set of analog-to-digital circuits (ADC) and a frequency tracking module. The RF splitter splits a set of incoming RF signals into multiple RF signal paths. Each of the track-and-hold circuits, which is clocked at a different frequency than others, samples the incoming RF signals from a respective one of the RF signal paths. Each of the ADCs receives the sampled data from a respective one of the track-and-hold circuits. Each of the ADCs is also clocked at same frequency as a corresponding one of the track-and-hold circuits. The frequency tracking module determines a frequency of the incoming RF signals.

公开(公告)号：US20190020165A1

公开(公告)日：2019-01-17

申请号：US15962788

申请日：2018-04-25

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Richard E. Berkenbush ,  James W. Holley

IPC: H01R43/26 ,  B25G1/00 ,  B25B23/142 ,  B25B13/06 ,  B25B13/48 ,  B25B13/30

CPC classification number: H01R43/26 ,  B25B13/06 ,  B25B13/28 ,  B25B13/30 ,  B25B13/481 ,  B25B13/5016 ,  B25B23/142 ,  B25G1/005

Abstract: A cable connector wrench and method of operation that in one example has a shaft with a pair of asymmetrical jaws at one end and a handle coupled to the other end. The two jaws form an assembly in which the jaws are joined with a pivot. The fixed jaw is attachable to the shaft and the movable jaw is coupled to the fixed jaw. The movable jaw and the fixed jaw cooperate to engage a connector of a cabled assembly wherein the connector wrench is adapted for tightening or loosening the connector of the cabled assembly.

公开(公告)号：US20190003828A1

公开(公告)日：2019-01-03

申请号：US15781520

申请日：2016-10-31

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Michael J. Choiniere

IPC: G01B11/27 ,  G01C3/08

CPC classification number: G01B11/272 ,  G01C3/08 ,  G03B13/20

Abstract: The system and method of sensor imager and laser alignment. The system utilizes a DLP mirror array with a compact collimator to provide a real time, direct mapping of the laser energy from a LRF onto an imager (e.g., visible, SWIR, LWIR, or the like) by using a back scatter approach. This method eliminates the thermal and vibration/shock optical alignment issues by using a relative measurement approach significantly reducing the size, weight, and cost of the alignment system.

公开(公告)号：US10158999B2

公开(公告)日：2018-12-18

申请号：US15068085

申请日：2016-03-11

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Apurva N. Mody ,  Kenneth Carrigan ,  Jack Chuang ,  Alex Lackpour ,  Matthew J. Sherman ,  Alan M. Rosenwinkel

IPC: H04W16/14 ,  H04L5/00 ,  H04B1/06 ,  H04J13/00 ,  G01S7/02 ,  G01S7/00 ,  H04K3/00

Abstract: A spectrum sharing system includes an advanced beacon (e.g. a low latency RF link) as part of an information sharing subsystem. The advanced beacon signal carries radar spectrum transmission schedule in an obfuscated way such as not to reveal the geolocation of the radar. The information sharing subsystem directs nodes, such as cell phones, to share spectrum based on spectrum sharing instructions contained in the advanced beacon. The spectrum sharing system permits out-of-band sharing of spectrum white space, as well as sharing of in-band spectrum gray space.

公开(公告)号：US10158431B2

公开(公告)日：2018-12-18

申请号：US15496552

申请日：2017-04-25

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： John H Chongoushian

IPC: H04B7/14 ,  H04B15/00 ,  H04W24/10

Abstract: A method for mitigating the effect of a localized jamming attack on a secure, tactical wireless network implements a dynamic relay assignment (“DRA”) approach, whereby nodes are dynamically assigned to relay communications to “disadvantaged” nodes that are subject to the attack, the relay nodes being selected based on their communication reliability and their proximity to the disadvantaged nodes. In embodiments, the nodes share with each other performance statistics and, in embodiments, measured local noise levels. In various embodiments, each node provides data to a “strategy optimizer” which then dynamically makes relay assignments. In Link-16 embodiments support for a “DRA” relay mode is added, and the communication protocol is extended to support the required exchange of communication quality and local noise information via PPLI messages.

公开(公告)号：US10158416B1

公开(公告)日：2018-12-18

申请号：US15827408

申请日：2017-11-30

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： David A Cooper ,  John H Chongoushian ,  Bruce M Eteson ,  Jeffrey P Pincus ,  John A Tranquilli, Jr.

IPC: H04B15/00 ,  H04B7/14 ,  H04W12/02 ,  H04L25/02

Abstract: An unattended apparatus and method for isolating and relaying secure communications under adverse circumstances without awareness of encryption keys uses known and/or inferred characteristics of received transmissions to identify, isolate, and retransmit only friendly communications without decryption or re-encryption, and in embodiments also without awareness of applicable TRANSEC algorithms and keys. A channelizer digitizes energy received within a bandwidth of interest, which is then analyzed to detect chip timing, identify and demodulate pulses, and assemble secure messages for retransmission. In embodiments, the retransmissions use the original frequencies and TRANSEC parameters, and/or otherwise adhere to applicable TRANSEC and MSEC constraints so that the relayed messages are accepted by intended recipients. Embodiments provide interoperability with existing secure communications such as Link 16 and CDL. In embodiments relay nodes communicate via an out-of-band transport to determine which link has the best reception and which should retransmit a message.

公开(公告)号：US10135443B1

公开(公告)日：2018-11-20

申请号：US15668094

申请日：2017-08-03

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.

Inventor： Jason F. Ross

IPC: H03K19/003 ,  H03K17/0814 ,  H03K19/177 ,  H03K19/00 ,  H03K19/0185

Abstract: An off chip driver circuit includes a bias circuit and a driver sub-cell circuit. The bias circuit and off chip driver sub-cell circuit are in electrical communication with each other. The bias circuit includes two serially aligned diodes which are in an off-state when the driver sub-cell is in a functional mode and which are in an on-state when the driver sub-cell is in a cold spare mode. The arrangement of the diodes enables the off chip driver circuit to handle similar voltage signals in both the functional mode and the cold spare mode.

公开(公告)号：US10097199B1

公开(公告)日：2018-10-09

申请号：US15893895

申请日：2018-02-12

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： Lawrence J. Kushner ,  Mark E. Stuenkel ,  Steven E. Turner

IPC: H03M1/66 ,  H03M1/74 ,  G06F9/22 ,  H03F3/45

Abstract: A digital to analog converter (DAC) circuit is disclosed which employs isolation providing cascode devices to reduce data dependent signal distortion. A DAC circuit configured according to an embodiment includes a current source associated with each bit of a digital word that is to be converted. Each current source is coupled to a current switch that is controlled by the associated bit. The DAC also includes a cascode device coupled to each of the current switches through a feed line. The DAC further includes a summing junction configured to generate an analog output signal corresponding to the digital word based on a sum of currents provided by the current sources, through the current switches and the feed lines. The cascode devices provide impedance matching and isolation between the feed lines and the summing junction to reduce signal reflections between the current switches and the summing junction to improve conversion performance.

公开(公告)号：US10057356B2

公开(公告)日：2018-08-21

申请号：US14523172

申请日：2014-10-24

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.

Inventor： Matthew J. Sherman

IPC: G06F15/173 ,  H04L29/08 ,  H04L29/06 ,  H04L12/24

CPC classification number: H04L67/16 ,  H04L41/0866 ,  H04L41/0893 ,  H04L63/20

Abstract: A method and a system of managing a policy managed system that includes a policy managed element. The method restricts the policy managed element so that internal configurations and actions of the policy managed element do not violate any policy rules generated external to the policy managed element. The method also prevents the policy managed element from generating policy that exit the policy managed element. The method, at a policy executive element (PEE) located remote from the policy managed element, restricts internal configurations and actions of the PEE so that the PEE does not violate any policy rules generated external to the PEE. The PEE includes a policy generation point (PGP) that the method allows to generate new policy rules that do not violate any existing policy and provides the new policy rules to the policy managed element.

公开(公告)号：US20180231738A1

公开(公告)日：2018-08-16

申请号：US15374475

申请日：2016-12-09

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： Philip R. Staver

IPC: G02B7/10 ,  H04N5/232 ,  G02B15/16 ,  G02B27/64 ,  G03B13/34

CPC classification number: G02B7/102 ,  G02B15/02 ,  G02B15/16 ,  G02B27/646 ,  G03B13/34 ,  H04N5/23248 ,  H04N5/23296

Abstract: A zoom lens having unpowered optical elements changeably inserted between conventional powered optical zoom elements enables ultra-fast and mechanically stable stepped changes in zoom state.