Westinghouse Electric Corporation

Bombardier Transportation Gmbh

Bombardier Transportation (technology) Germany Gmbh

Michael A Cross

Edward W Nichols

Fred S Hurt

Christopher Jackson Crawford

Kenneth Andrew Karg

John T Gordon

Mark David Kirschner

Albert B Cady

Linda F Clawson

Joseph Paul Schreibeis

Gary S Krut

Robert Blair Ciora

William Ruhe

John T DeGrave

Chad Emahizer

Richard Nicholas Lommock

William Keith Engel

John R Linkowski

An integrated security event management system (ISEMS) is disclosed and is based on service-oriented architecture (SOA) and includes one or more computers connected to one or more service-providing devices. At least one of the computers comprises one or more modules that are adapted to perform the following tasks: tasks to dynamically discover the service-providing devices and their services within a transit security domain in about real-time; tasks to acquire asynchronous state information notifications in about real-time from the discovered services; tasks to determine one or more Boolean outcomes from the asynchronous state information in about real-time via a configurable rules engine; and tasks to evaluate the one or more Boolean outcomes in about real-time via a configurable policy engine to determine state changes of one or more security policies.

Integrated security event management system

An automated manipulation system is provided for manipulating one or more vehicles in a transit system. The automated manipulation system includes a vehicle control mechanism in communication with a vehicle for receiving, processing and transmitting signals for controlling the operation of the vehicle. The system also includes a central control mechanism in wireless communication with the vehicle control mechanism for receiving, processing and transmitting signals for controlling the vehicle control mechanism and thereby initiating a manipulation operation in the vehicle. The manipulation operation is one of: adding a vehicle to the system; removing a vehicle from the system; coupling a first vehicle to a second vehicle; and uncoupling a first vehicle from a second vehicle. A method of automatically manipulating at least one vehicle in a transit system is also provided.

Automated manipulation system and method in a transit system

An optical data distribution system, for densely packed transmitter/receiver modules, of a phased-array antenna which includes an optical source and a plurality of light bars for distributing the optical energy to the photoconductor of each respective transmitter/receiver module. Each bifurcated light bar has an entrance aperture coupled to the optical source through a star coupling and branched light distributing elements branching from the entrance aperture air gap bridging optics to direct the light from each output aperture of fiber bundles to the photodetector.

Optical data distribution system for phased-array antenna

A radar test system for producing multiple delayed replicas of a radio frequency radar signal is provided. A laser diode is adapted to receive the radar signal and generate a modulated optical wave signal carrying the radar signal. The modulated optical wave signal passes through a fiber optic delay line. The delayed optical wave signal engages a partially transmissive and reflective assembly wherein a first portion of the optical wave signal is transmitted therethrough and a second portion is reflected back to the laser diode. That portion of the optical wave signal reflected back to the laser diode is amplified therein and subsequently regenerated. The signal transmitted through the partially transmissive and reflective assembly is demodulated to extract the optical wave leaving only the radar signal. In this manner, a series of multiple echoes of the radar signal is produced.

Radar test instrument using optical delay means

An inspection apparatus for measuring a surface contour on a workpiece, such as a groove in a pilgering roller die, includes a supporting mechanism for rotatably clamping the die so as to orient the groove thereon in a measurement position, an elongated contact member having a pair of arms with end elements extending in opposite directions, a pair of measurement devices each including a displaceable contact probe and electrical circuitry for measuring the displacement of the contact probe, and a spindle mounting the contact member in a generally vertical orientation and for movement about a vertical axis. End elements on the contact member arms are movable along orthogonally-disposed axes lying in horizontal planes and are respectively placed in contact with a contour of the die groove to be measured and the displaceable contact probes such that displacement of the probes permits measurement of the radius of the groove contour.

Apparatus and method for automated inspection of a surface contour on a

An electro-optical test tool for testing an input laser beam includes a collecting optics system of attenuating and collimating lenses enabling the test tool to test high powered, high PRF laser sources. A processor controlled CCPD sensor array provides a shuttered laser beam video signal which can be processed using a non-linear technique to improve the dynamic range of the system. Additionally, boresight error correcting capabilities are provided as well as range finding techniques.

Multifunction electro-optical system test tool

A pulsed laser arc welding method and apparatus whereby a pulsed input laser beam is generated by a laser pulse generator to cause an ionized plasma cloud to be generated at a worksite. A power supply supplies energy to an arc welding device, which is stored in a capacitor therein. This energy is drawn out of the storage capacitor once the ionized plasma cloud is sufficiently conductive. Control circuitry is provided to control the pulse repetition frequency of the laser pulse generator and to control the energy dissipation from the storage capacitor in the arc welding device.

Laser-arc apparatus and method for controlling plasma cloud

A microwave oscillator circuit having a voltage controlled oscillator for producing a controllable frequency microwave signal and a high overtone bulk acoustic resonator coupled to receive the signal is provided with a light source for directing a light beam onto the resonator such that the light is diffracted in response to the presence of acoustic waves produced in the resonator by the microwave signal. Diffracted and undiffracted portions of the light beam are measured and compared to provide an indication of resonance phenomena within the high overtone bulk acoustic resonator. This technique is particularly applicable to frequency agile stable local oscillators in radar equipment. Optical data extraction is completely non-invasive with respect to the microwave circuit functions, resulting in unimpaired stable local oscillator operation.

Microwave oscillator with optical readout of resonance phenomena

An attenuated fiducial replica of the far field pattern of a high energy laser beam is obtained by a system and method wherein a first fraction of an incident high energy beam is deflected from one reflective surface of a holey plate and the diffracted orders of the beam are transmitted from the holes to a concave reflector, which reflects diffracted orders toward an opposite reflective surface of the holey plate. A zinc selenide partially reflective member is disposed on-axis between the rear reflective surface and the concave surface for re-reflecting successive fractional portions of the reflected beam a selected number of times to attenuate the beam converging upon a focal plane from an effective focal distance greater than the physical length of the optical system.

High energy laser beam replica producing method and system

A system for characterizing miniature optical sources such as laser diodes is disclosed. In its most convenient form the system includes an optical system for collecting a wide angle beam and collimating the beam into substantially parallel rays. In the substantially parallel beam, equal area angular portions of the wide angle beam should correspond to equal areas in the parallel beam. Optical sensors are utilized to generate signals indicative of the intensity of the parallel optical beam. Digital processing is included to calculate the characteristics of the optical beam from the intensity samples of the parallel beam. In one embodiment, a reflecting plane is positioned between the source and the optical system so that Lloyd's fringes are produced in a measurement plane.

Device for characterizing wide angle beams

A system for analyzing the characteristics of a light beam is disclosed. Functionally, the system includes an optical system for collecting the light beam to be analyzed. An array of light-sensitive elements is positioned at the focal plane of the optical system. A digital system sequentially samples the output signals of the light sensors and processes the resulting data to generate signals indicative of the characteristics of the light beam.

Optical beam analyzer

A heater control circuit functions in conjunction with a suitable heating coil to provide precision, automatic temperature regulation. The combination of heating and temperature sensing functions into a single system results in a two-wire heater regulator control circuit in which a continuous excitation voltage and a power voltage can be simultaneously present at the heater coil. Temperature of the heater is established by continuous excitation and sensing independent of the occurrence of power for heating. A short circuit protection circuit is responsive to an electrical short in the heater coil (which significantly changes its resistance with temperature) and disables the power voltage.

Two wire heater regulator control circuit having continuous temperature

A directional optical fiber signal tapping assembly. A light pipe rod encircles and accepts stray light rays leaving the otherwise bare outer surface of a length of optical fiber in a region following a location having a bend that induces a selected degree of outward leakage of optical signal rays in the bend following longitudinal light pipe region. Curvature of one end of the light pipe rod conducts the extracted optical signal sample to an optical detector device.

Directional optical fiber signal tapping assembly

An improved passive optical range simulator device which can be used to test the ranging function of an optical radar ranger system having parallel beams leaving and entering. An adapter member provides for mechanical coupling and optical alignment of the simulator device with the ranger system. A focusing lens transforms parallel beams entering and leaving the ranger system into focused beams entering and leaving one end of a coil of optical fiber having a mirror at its opposite end to act as an optical delay medium. A primary tilted-glass-element optical attenuator limits optical energy allowed to reach the optical fiber entrance face, while defecting first surface reflection away from ranger system input. A removable attenuator assembly having oppositely-tilted flat glass elements at the fiber entrance face permits, by substitution, fine adjustment of beam attenuation. An X-Y-Z translation assembly for the fiber entrance face, together with a light source at the opposite end of the fiber, provides for proper alignment with the focused beams.

Passive optical range simulator device

An improved passive optical range simulator device used to test the ranging function of the optical radar ranger system by input to a coil of optical fiber having a mirror at its inner terminus that permits such coil to act as an optical delay medium. Improvement resides in inclusion of a partial mirror at the input end of the optical fiber coil to present multiple 'target echo' reflections of the laser pulses back to the optical radar ranger system undergoing test.

Growing community of inventors

Severna Park, MD, United States of America

Michael A Cross