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| Number | Title | Issue Date |
| 5677795 | Modular helmet-mounted display An aviator's helmet-mounted display includes a visor/combiner module (14) which is configured for use with an essentially standard aviator's flight helmet (12). The helmet-mounted display also includes a conformal image source and relay optics (ISRO) modu... | 10/14/1997 |
| 5602760 | Image-based detection and tracking system and processing method employing clutter measurements and signal-to-clutter ratios A method for measuring and quantifying clutter, and target detection and tracking systems that employs wavelet-based clutter quantification to generate a clutter number and a signal-to-clutter ratio derived therefrom to achieve improved target detection p... | 02/11/1997 |
| 5579207 | Three-dimensional integrated circuit stacking A plurality of integrated circuit chips (12) are packaged in a stack of chips in which a number of individual chip layers (10,120,130,132,134) are physically and electrically interconnected to one another and are peripherally sealed to one another to form... | 11/26/1996 |
| 5526181 | Dynamic aberration corrector for conformal windows A method and apparatus (30) for compensating for optical aberration created by a conformal window (60). The apparatus (30) comprises a one-dimensional corrector plate (32) for providing a varying amount of linear coma, first and second cylindrical lenses ... | 06/11/1996 |
| 5517297 | Rangefinder with transmitter, receiver, and viewfinder on a single common optical axis A laser rangefinder (50) having visual, transmit and receive optical channels all arranged on a common rangefinder axis (70). A laser emitter (54) located on the axis directs its light away from the rangefinder output toward a reflector surface, also loca... | 05/14/1996 |
| 5517192 | High resolution gain response correction circuit A high resolution gain response correction circuit. The inventive circuit (10) is adapted for use with a first circuit for providing a first analog input signal and includes a second circuit (Rp, Rref) for providing a second input si... | 05/14/1996 |
| 5489776 | Microbolometer unit cell signal processing circuit A circuit (30) for processing a signal provided by a silicon microbolometer unit cell (76). In accordance with the invention, electrical energy is applied to a first terminal of the unit cell (76) to generate first and second signals at the first terminal... | 02/06/1996 |
| 5479077 | Window wiper system for infrared camera A miniaturized window wiper includes a mounting hub having a concealed mounting boss therein, the hub being pivotally connected to a wiper arm which further mounts and shrouds a wiper blade holder, the wiper arm being subjected to tension by a torsion spr... | 12/26/1995 |
| 5477395 | Two nested all-reflective afocal telescopes providing four fields of view An all-reflective multiple field of view optical system has first (10) and a second (12) reflecting assemblies which share a common package volume in a single unit. The first (10) and second (12) reflecting assemblies rotate with respect to one another to... | 12/19/1995 |
| 5477183 | Automatic gain and level control circuit and method An automatic gain and level control method and circuit. In general, the inventive method includes the steps of detecting the DC level of a signal and providing a first signal in response thereto and detecting the AC amplitude or gain of the signal and pro... | 12/19/1995 |
| 5386316 | Optical systems having multiple simultaneous functions An all-reflective optical system has a first (10) and second (12) reflecting assembly. The first reflecting assembly (10) includes an afocal three-mirror anastigmat (18, 20, 22) with one or more apertures (28 A-D) in the tertiary mirror (22) to enable lig... | 01/31/1995 |
| 5337150 | Apparatus and method for performing thin film layer thickness metrology using a correlation reflectometer An apparatus (10) that measures the thickness of a thin film layer of a wafer (12) is described. The thickness of the thin film layer is measured by irradiating a reference wafer (22) with a beam (21) of broadband radiation. The reference wafer (22) has a... | 08/09/1994 |
| 5321267 | Bench flotation sensor A noncontact bench flotation sensor system for use with a flotation bench. The system comprises a plurality of reflectors that are disposed on the body of the bench, typically on the inside of the skirt or overhanging portion of the table surface of the b... | 06/14/1994 |
