Stephen F Bush

US Patent:

6498968, Dec 24, 2002

Filed:

Nov 27, 2001

Appl. No.:

09/994448

Inventors:

Stephen Francis Bush - Latham NY

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

G06F 700

US Classification:

701 3, 701 1, 701 36, 701 66

Abstract:

A real-time distributed model-based predictive control method having a time maintenance mechanism that solves all state synchronization problems. Method steps include generating a message that predicts a system value corresponding to a future time, and executing a control process using the system value contained within said message, resulting in a process state. The process state is then stored in a state queue. The local process time is rolled back to the latest valid local process time prior to said message if the message precedes the current process state time. Rolling back comprises retrieving the system state values at that latest valid local process time from said state queue and re-executing the control process, using the system value contained within the message, and storing the new state in the state queue. The method also includes rolling back if, upon receiving a message containing an observed system value, said observed system value differs from its predicted value by more than a predetermined tolerance. The method is carried out on a distributed processor control system.

US Patent:

6697762, Feb 24, 2004

Filed:

Nov 9, 1999

Appl. No.:

09/436149

Inventors:

Stephen Francis Bush - Latham NY
John Erik Hershey - Ballston Lake NY
Kirby Gannett Vosburgh - Schenectady NY
Brock Estel Osborn - Niskayuna NY

Assignee:

General Electric Company - Niskayuna NY

International Classification:

G05D 2320

US Classification:

702182, 700 31

Abstract:

The invention provides a computer implemented tool for analyzing the brittleness of a system with respect to at least one system performance measure. The tool comprises a statistical analyzer configured to receive at least one operating parameter input, o, and to provide at least one performance function output, f. The performance function output f provides an indication of system performance as a function of system operating parameter input o. A brittleness analyzer is coupled to the performance function output and is configured to provide a brittleness output based upon the performance function output f.

US Patent:

7113493, Sep 26, 2006

Filed:

Jun 2, 2000

Appl. No.:

09/584955

Inventors:

Stephen Francis Bush - Latham NY, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

H04B 7/204
H04L 12/28
H04L 12/56
H04J 3/16
H04J 3/22

US Classification:

370325, 3703951, 370469

Abstract:

A communications network comprises a plurality of nodes including at least one earth station and at least one spacecraft. The spacecraft node is an active node of the network. A method for dynamically configuring a spacecraft to function as a node of a communications network in accordance with the defacto active network reference and with an Open Systems Interconnect (OSI) reference model comprises the step of transmitting an object from an earth station to the spacecraft. The object comprises at least one method for configuring the spacecraft to include a node operating system (nodeOS) and at least one execution environment (EE).

US Patent:

7174300, Feb 6, 2007

Filed:

Dec 11, 2001

Appl. No.:

10/015025

Inventors:

Stephen Francis Bush - Latham NY, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

G10L 15/00

US Classification:

704275, 704270

Abstract:

A dialog processing method and apparatus for uninhabited air vehicles is described. The apparatus contains a recognition unit for recognizing incoming data, an interpretation unit for interpreting the data according to a grammar and a response unit for generating an appropriate response to the incoming data. The method may utilize natural language processes and may reduce to a finite state machine. The incoming data is combined with uninhabited air vehicle state information to increase the accuracy of this interpretation. Additionally, the dialog states may be limited to customary air traffic control dialogs.

US Patent:

7194397, Mar 20, 2007

Filed:

Nov 27, 2001

Appl. No.:

09/994447

Inventors:

Stephen Francis Bush - Latham NY, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

G06G 7/48

US Classification:

703 8, 703 6, 703 7, 703 22, 701 1, 701 2, 701 3, 701 14

Abstract:

A command sequence for an autonomous UAV mission is optimized by simulating the performance of a mission in a model environment. Using a genetic algorithm, neural net, or other suitable technique this command sequence is then optimized, to improve the outcome of the mission. A factor in selecting an optimal command sequence will be its compressability. A set of one or more optimal command sequences is compiled. Each optimal command sequence is encoded into an algorithmic active packet of minimum size for uploaded to the UAV, which then executes the mission. To track the UAV in its performance of the mission without compromising its location, the active packets are executed in the simulated environment. The simulated environment is continually updated with the most current available information. The simulation results are an approximation of the current state of the UAV.

US Patent:

7287087, Oct 23, 2007

Filed:

Oct 26, 2000

Appl. No.:

09/697562

Inventors:

Stephen Francis Bush - Latham NY, US
John Erik Hershey - Ballston Lake NY, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

G06F 15/16

US Classification:

709234, 709232, 709238, 709240, 370412, 370413

Abstract:

A communications network comprising at least one source unit is configured to generate messages for relay to a portal node through at least one smart node. The smart node includes a dynamic reprioritization controller capable of dynamically reprioritizing the relayed messages prior to relay transmission by a transmitter according to received programming instructions.

US Patent:

7366185, Apr 29, 2008

Filed:

Feb 3, 2004

Appl. No.:

10/770694

Inventors:

Stephen F. Bush - Latham NY, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

H04L 12/28
H04L 12/56
H04Q 7/24

US Classification:

370400, 370401, 370402, 370338

Abstract:

A system in accordance with the present invention operates a wireless ad hoc network. The system includes a plurality of nodes and a plurality of protocols for governing transmission of data between the plurality of nodes. A first node of the plurality of nodes executes an evolutionary service migration algorithm for transferring a service from the first node to one of the remaining of the plurality of nodes.

US Patent:

7620985, Nov 17, 2009

Filed:

Oct 14, 2004

Appl. No.:

10/965248

Inventors:

Stephen Francis Bush - Latham NY, US
Amit Bhavanishankar Kulkarni - Clifton Park NY, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

G06F 11/00

US Classification:

726 22

Abstract:

A flood attack of an information system is simulated by injecting an algorithmically compressed flood attack model into the information system to assess the effect of the attack upon the system. The flood attack model propagates from node to node throughout the system by way of virtual messages that time-project the flood attack model and do not disrupt system operation while the simulated flood attack is taking place. Programs of executable code installed on nodes of the information system generate and send the virtual messages describing the flood attack.