Itt Manufacturing Enterprises, Inc.

Itt Corporation

Itt Industries, Inc.

Richard J Hertel

Douglas Lent Cohen

David James Crain

An optical system measures scene inhomogeneity. The system includes a mirror for receiving radiance of a field-of-view (FOV) of a scene, and reflecting a portion of the radiance to an optical detector. A controller is coupled to the mirror for changing the FOV. The optical detector provides a signal of the reflected portion of radiance of the scene. A processor determines scene inhomogeneity, based on amplitude of the signal provided from the optical detector. The controller is configured to modulate the FOV at a periodic interval, using a sinusoidal waveform, a pulse code modulated waveform, or a pseudo-random waveform.

Using a fixed-frequency oscillation to detect and measure scene inhomogeneity

A method for measuring scene inhomogeneity includes the steps of directing radiance of a scene into a dispersive spectrometer, and changing the field-of-view (FOV) of the spectrometer, while directing the radiance of the scene into the spectrometer. The method then processes the radiance of the scene to obtain a signal. The method also includes measuring an amplitude of the signal and determining scene inhomogeneity based on the measured amplitude of the signal. The method may include uniformly oscillating the FOV of the spectrometer and, next, obtaining a sinusoidal signal, based on uniformly oscillating the FOV of the spectrometer.

Using a fixed-frequency oscillation in a dispersive spectrometer to measure scene inhomogeneity

A system is provided which includes a GPS receiver which determines its location as defined by three spatial coordinates and an associated time reference. The system includes a control logic unit which determines whether the location of GPS receiver is outside the permitted boundaries configured into an internal database in the system. The control logic unit is configured to transmit information related to the location of the GPS receiver to a remotely located interrogator apparatus which communicates back to the control logic unit, instructions regarding determination and reporting of the location of the GPS receiver. An interrogator, if included with a database, can be used as a shopping assistant to aid a shopper in locating desired items by polling a number of the GPS receiver, each associated with a different item, and informing the shopper of the floor, store, aisle or shelf where the item is located.

Accountability and theft protection via the global positioning system

An apparatus and method for monitoring and bounding the path of a ground vehicle. The apparatus comprises a GPS receiver for receiving radio signals from a Global Positioning System which are indicative of the current ground position coordinates of the GPS receiver and thus, are the current ground position coordinates for the ground vehicle also when the GPS receiver is coupled to the vehicle. The apparatus also includes a data base for storing ground position coordinates which are indicative of at least one bounded area of permitted operation for the ground vehicle. A control unit which is responsive to the GPS receiver and the data base, is provided for comparing the stored ground position coordinates with the current ground position coordinates in order to determine if the ground vehicle is outside of the bounded area of permitted operation. A kill switch mechanism is provided for disabling the ground vehicle when the current ground position of the ground vehicle is outside of the bounded area of permitted operation.

Apparatus and method for monitoring and bounding the path of a ground

A pick-up tube of a camera device is optically coupled to an image intensifier tube. An exposure control circuit is provided which monitors the charge supplied to the phosphor screen of an image intensifier device and, thus, to the photodetector of the pickup tube, and which varies the exposure time in accordance with the level of scene illumination and the charge storage capability of the photodetector. The exposure control system also adjusts the gain of the image intensifier in accordance with the scene illumination prior to readout of the photodetector in order to optimize the signal to noise ratio.

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Fort Wayne, IN, United States of America

Richard J Hertel