Christopher A Peters

US Patent:

6784620, Aug 31, 2004

Filed:

Mar 10, 2003

Appl. No.:

10/385143

Inventors:

Christopher Wayne Peters - Cherry Hill NJ

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

H01J 724

US Classification:

31511121, 31511101

Abstract:

A low/band/high pass filter includes first and second plasmas, each with a path for the flow of electromagnetic energy at frequencies above the plasma frequency. A path for the flow of electromagnetic energy is coupled to the second port of the first plasma and to a first port of the second plasma. The plasma frequency of the second plasma is greater than that of the first plasma. Energy below the plasma frequency of the first plasma is reflected from the first port of the first plasma, and energy above the plasma frequency of the second plasma propagates to the second plasma. That energy above the plasma frequency of the first plasma but below the plasma frequency of the second plasma reflects from the second plasma and is coupled out of the system. That energy at a frequency above the second plasma frequency propagates through the second plasma.

US Patent:

7750753, Jul 6, 2010

Filed:

Jul 17, 2008

Appl. No.:

12/174990

Inventors:

Roland Cadotte, Jr. - Freehold NJ, US
Christopher W. Peters - Cherry Hill NJ, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

H03G 11/00
H03H 7/38

US Classification:

333 172, 333 81 A

Abstract:

A system includes a source of electromagnetic energy or power and an amplitude-sensitive circuit. An amplitude-limiting transmission line couples the source to the circuit. The transmission line includes a semiconductor in the field of the transmission line and a light source for illuminating the semiconductor with light responsive to the amplitude from the source. Application of energy or power to the light source illuminates the semiconductor, which produces a plasma. The plasma tends to attenuate the energy or power reaching the circuit.

US Patent:

7894925, Feb 22, 2011

Filed:

Feb 27, 2008

Appl. No.:

12/038043

Inventors:

Christopher W. Peters - Cherry Hill NJ, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

G06F 19/00
G05B 13/02
G06F 15/18
H01Q 1/42

US Classification:

700118, 700 28, 700 36, 700 98, 706 13, 343872

Abstract:

A method for determining the seam location for each layer of a multilayer radome for use with an array antenna includes the steps of quantizing the radome thickness, and forming an image of the quantized thickness vs. line array position. Seam locations are assigned for an original population, and a genetic algorithm is iterated to optimize a cost function. The cost function is the level of all sidelobes other than the main lobe. The result of the genetic algorithm is an optimized set of seam locations. The radome is built with the seam locations corresponding to the optimized locations.

US Patent:

8587496, Nov 19, 2013

Filed:

Jan 14, 2011

Appl. No.:

13/007170

Inventors:

Christopher W. Peters - Cherry Hill NJ, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

H01Q 1/42

US Classification:

343872, 343853, 343893, 343793, 343795

Abstract:

A method for determining the seam location for each layer of a multilayer radome for use with an array antenna includes the steps of quantizing the radome thickness, and forming an image of the quantized thickness vs. line array position. Seam locations are assigned for an original population, and a genetic algorithm is iterated to optimize a cost function. The cost function is the level of all sidelobes other than the main lobe. The result of the genetic algorithm is an optimized set of seam locations. The radome is built with the seam locations corresponding to the optimized locations.

US Patent:

20180259923, Sep 13, 2018

Filed:

Mar 7, 2017

Appl. No.:

15/452589

Inventors:

- Morris Plains NJ, US
Avinash Rajan - Bangalore, IN
Kalyanasundaram Govindaraj - Bangalore, IN
Amol Kinage - Bangalore, IN
Ravi Kumar Ramamurthy - Bangalore, IN
James Schreder - Lansdale PA, US
Christopher Peters - Chester VA, US

International Classification:

G05B 19/042
G06F 13/16
G06F 13/40

Abstract:

A system includes a high speed bus and a plurality of multi-function modules coupled to the high speed bus. The plurality of multi-function modules includes at least one controller configured to execute control logic for the system. The plurality of multi-function modules also includes at least one arbitrator configured to manage the at least one controller. The plurality of multi-function modules further includes at least one input/output (IO) manager configured to interface between the at least one controller and at least one field device.