Bae Systems Information and Electronic Systems Integration Inc.

Other

Michael J Weber

Phong C Khuu

Brian D Loop

Reza Ghanadan

Jessica Y Hsu

Gregory S Sadosuk

Carl Nelson

Darrel W Haynes

Vu T Le

Lex M Cowsert

Jacqueline R Wyatt

John Gu

Kevin M McNeill

Robert B Ross

Tim McNevin

Matvey Yutin

Robert S Gray

Qui M Le

Elena E Novikova

Techniques are provided for actively controlling a communications bus to mitigate threats, including cyber-attacks. A methodology implementing the techniques according to an embodiment includes detecting a threat in a message that is being transmitted between nodes on the communications bus. The message comprises one or more message frames and the threat detection is based on analysis of an initial portion of the message frame. The method further includes actively controlling the bus, based on the threat detection, to prevent the remaining portion of the message frame from delivering the threat to one or more of the nodes on the bus. Actively controlling the bus includes isolating nodes from the bus and/or overwriting data in the remaining portion of the message frame to invalidate the message frame or to remove the threat from the message frame.

Active control of communications bus for cyber-attack mitigation

An anomaly detection system is disclosed. In an embodiment, the anomaly detection system includes an anomaly detection module and a warning indicator module. The anomaly detection module includes one or more auto-encoders that receive sensor data from a plurality of sensors. Each of the one or more auto-encoders receives sensor data from at least three different sensors of the plurality of sensors. By receiving data output from at least three of the sensors, the auto-encoder can recognize expected inter-related patterns from the sensor output. The warning indicator module compares an output of a given auto-encoder of the plurality of auto-encoders to an input of the given auto-encoder to obtain an error value, and then compares that error value against an error threshold. In response to the error value exceeding the error threshold, the warning indicator module issues a warning signal associated with the sensor data received by the given auto-encoder.

Auto-encoders for anomaly detection in a controller area network (CAN)

A Taint Modeling Function (TMF) finds abstract patterns and uses them to automate the malware detection process. TMF involves the process of statically analyzing a sequence of assembly language instructions and abstracting complex relationships among instruction inputs and outputs into a mathematical function containing a set of algebraic expressions. The set of expressions support fully automating semantic pattern detection in binary code. It deterministically generates outputs given inputs determining code block outputs, for given inputs, without executing the code. It detects code patterns automatically to spot bad coding patterns directly from the binary used to detect bugs statically in the entire application space.

Automated reverse engineering

The present invention relates to a system and method for providing channel access synchronization in a time division multiple access (TDMA) multi-hop network employing a plurality of time slots defined within a frame structure which repeats. The system and method includes nodes which have local clock variables. The local clock variables generate an expected arrival time of signals from other nodes in the network. Each node then determines whether the local clock variable needs adjusting after receiving a transmission and comparing the expected arrival time with the actual arrival time. Thus, time synchronization across the network is distributed and updated locally at each node. Networks may be merged by casting out nodes in one network and joining those cast out nodes with the other network. Newly joined nodes are thereafter time synchronized into their new network by comparing actual and expected arrival times and updating their clock accordingly.

System and method to provide channel access synchronization without time-stamp exchange in time division multiple access (TDMA) multi-hop networks

A node in a wireless communication network comprises a processor that receives information regarding a first plurality of packets to be transmitted in an epoch, a first path of nodes for the first plurality of packets, and a first flow rate. The processor receives information regarding a second plurality of packets to be transmitted in the epoch, a second path of nodes for the second plurality of packets, and a second flow rate. The processor determines weights for the paths based on the flow rates. The processor assigns pipelines for the paths and creates groups of pipelines based on the weights. The groups may be assigned to a schedule.

System and method for assigning time slots for transmission of packets in a wireless communication network utilizing knowledge of a data path

A method and apparatus is provided for using a distributed multi-path QoS-aware routing scheme that considers basic MANET characteristics to meet transport service requirements of real-time applications and makes use of multiple discovered paths to calculate a next-hop decision. The QoS Routing scheme superimposes distributed neighborhood congestion, neighborhood density, and link stability and delay information over the multiple discovered paths when the next-hop decision is calculated.

Integrating local congestion and path interference into QoS routing for wireless mobile AD HOC networks

Antisense compounds, compositions and methods are provided for modulating the expression of MP-1. The compositions comprise antisense compounds, particularly antisense oligonucleotides, targeted to nucleic acids encoding MP-1. Methods of using these compounds for modulation of MP-1 expression and for treatment of diseases associated with expression of MP-1 are provided.

Antisense modulation of MP-1 expression

A prosthetic cement spacer for controlling the thickness of cement applied between a prosthetic insert and a support member, such as an acetabulum, includes a generally cylindrical standoff body portion fabricated from acrylic bone cement and a pointed wire concentric with said standoff body and outwardly extending from one end a sufficient length to anchor into the acetabulum bone surface. The method of use of these prosthetic cement spacers involves preparation of the acetabulum so that there is sufficient clearance space for the prosthetic cement spacers and then to insert the pointed wires into the acetabulum bone surface in an equilateral triangular arrangement thereby providing three points of contact for the prosthetic insert, such as an acetabular cup. By selecting three prosthetic cement spacers all having substantially the same standoff body height, the clearance region between the acetabulum bone surface and the acetabular cup is controlled and provides a uniform cement thickness throughout thereby providing an improved bonding arrangement.

Growing community of inventors

Warrenton, VA, United States of America

Michael J Weber