1
Seymour Levine: Remote, aircraft, global, paperless maintenance system. Norton R Townsley, October 26, 1999: US05974349 (125 worldwide citation)

This invention is a system that monitors many performance parameters and many aircraft operational parameters, and broadcasts this information along with aircraft identification, audio, video, global positioning and altitude data, to a world wide two-way rf network. This information is monitored and ...


2
Seymour Levine: Remote aircraft flight recorder and advisory system. Norton R Townsley, March 30, 1999: US05890079 (100 worldwide citation)

This invention is a system that monitors many performance parameters and many aircraft operational parameters, and broadcasts this information along with aircraft identification, audio, video, global positioning and altitude data, to a world wide two-way rf network. This information is monitored and ...


3
James T Hall, Arthur B O Connor, Susan M Raffensperger, Seymour Levine: Holographic laser scanner and rangefinder. Northrop Grumman Corporation, Terry J Anderson, Karl J Hoch Jr, November 28, 1995: US05471326 (67 worldwide citation)

A holographic optical element (HOE) includes a substrate structure having rotational symmetry with respect to a rotational axis for rotatively supporting at least two holograms. A first hologram on the substrate structure in the path of a normally incident beam diffracts the beam by a first acute an ...


4
Douglas R Jungwirth, A Phillip Simpson, Mitsuo Kawahara, Seymour Levine, John M Kennel: Strapdown stellar sensor and holographic lens therefor. Northrop Corporation, Terry J Anderson, Robert B Block, April 30, 1991: US05012081 (32 worldwide citation)

A star tracker for generating positional information for a vehicle includes a telescope 40 having multiple fields of view for imaging stellar objects. The telescope includes a plurality of radiation detectors 58 and an input lens 45 comprised of, in one embodiment of the invention, a plurality of ho ...


5
Murty V Mantravadi, Susan M Raffensperger, Phillip Simpson, Douglas R Jungwirth, Seymour Levine: Strapdown stellar sensor and holographic multiple field of view telescope therefor. Northrop Corporation, Terry J Anderson, Robert B Block, Karl J Hoch, April 27, 1993: US05206499 (30 worldwide citation)

A star tracker for generating positional information for a vehicle includes a holographic telescope (150) having one or more fields of view for imaging stellar objects. The telescope includes a plurality of radiation detectors (100) and an input aperture comprised of a primary holographic optical el ...


6
Michael F Lynch, Seymour Levine: Flux valve compass system. Sperry Corporation, Howard P Terry, April 21, 1981: US04262427 (17 worldwide citation)

An improved earth's magnetic field sensing compass utilizes a flat, toroidal flux valve in which pickoffs sense mutually perpendicular components of the magnetic field and the fields are nulled by the closed loop feed back of nulling currents into respective pairs of the sensor pickoffs.


7
Seymour Levine, Marvin Taylor: Stabilized gyrocompass. Sperry Corporation, Howard P Terry, September 25, 1984: US04472978 (13 worldwide citation)

In a stabilized gyrocompass having meridian seeking gyroscopic means and slaved horizontal gryoscopic means disposed upon a common platform, a signal representative of the angle which develops between the meridian seeking gyro and the platform in response to the dynamic effects of the vehicle is gen ...


8
Leslie Jae Lenell, Seymour Levine: Safelander. August 29, 2006: US07099752 (12 worldwide citation)

SAFELANDER provides a method of safely operating aircraft, equipped with a Flight Control Unit, Instrument Landing System, and Autopilot, remotely on the ground and/or in congested airspace. The remote pilot, who can concurrently control a plurality of operational aircraft, communicates with Air Tra ...


9
Seymour Levine: Apparatus and method for inertial measurement of pipeline deflection. Litton Systems, Elliott N Kramsky, June 25, 1985: US04524526 (12 worldwide citation)

Apparatus and a method for detecting deflections along the length of a pipeline. A plurality of measurements of inertial attitude are made along the length of the pipeline over time by means of apparatus, including sensors, associated with a pipeline pig. Thereafter, by comparing a time sequence of ...


10
Seymour Levine: Linear D.C. drive circuit. Sperry Rand Corporation, Howard P Terry, Joseph M Roehl, December 13, 1977: US04063141 (12 worldwide citation)

A d.c. load is energized through a full wave bridge circuit from an a.c. source in accordance with a d.c. control signal. The d.c. control signal is modulated so as to produce a train of unipolar pulses having pulse widths proportional to the magnitude of the d.c. control signal and synchronized so ...