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| Number | Title | Issue Date |
| 5341205 | Method for characterization of optical waveguide devices using partial coherence interferometry An optical system and method include a short coherence length edge, emitt LED, a fiber optic coupler probe, and a Michelson interferometer to measure the parameter of thickness of optical devices, such as thin silicon substrate samples and to characteriz... | 08/23/1994 |
| 5307358 | Wavelength dispersive gain element for a tunable laser A tunable laser is described in which the gain element is fabricated to produce wavelength dispersion within the laser resonator cavity. Specifically, the laser gain element has Brewster angled entrance and exit faces which allow it to operate as a wavele... | 04/26/1994 |
| 5272476 | Data acquisition system having novel, low power circuit for time-division-multiplexing sensor array signals An electronic circuit architecture time-division-multiplexes analog sensor ignals from a distributed sensor array onto a common transmission line in a digitally encoded format. The architecture synchronizes the multiplexing, sampling and encoding to ensure... | 12/21/1993 |
| 5258145 | Method for manufacturing a high resolution structured x-ray detector A method of producing scintillation phosphor X-ray detector arrays using k materials and repetitive manufacturing techniques. The structures formed by this method may be used to detect x-rays, charged particles and neutral particles by converting the inc... | 11/02/1993 |
| 5126292 | Glassy binder system for ceramic substrates, thick films and the like A ceramic material for electronic circuit devices is sintered at less than r equal to 1000° C. temperature. A filler material such as quartz and a glassy binder RO-Al2 O3 -B2 O3 are mixed together along with an ... | 06/30/1992 |
| 5119394 | Technique for longitudinal optical pumping of a laser A technique and apparatus employs a plurality of laser pumping emissions fed as collimated parallel beams from a multi-faceted reflective solid with highly reflective faces into a single aperture lens to concentrate all the laser pumping emissions onto a ... | 06/02/1992 |
| 5089941 | Flux containment device A flux containment device entraps an unneeded portion of the radiated ene emitted by a reference source lamp so that a determinable amount of radiation is projected to electro-optical sensors for calibration purposes. A double-walled, concentric can-shap... | 02/18/1992 |
| 5043302 | Glassy binder system for ceramic substrates, thick films and the like A ceramic material for electronic circuit devices is sintered at less than or equal to 1000° C. temperature. A filler material such as quartz and a glassy binder RO--Al2 O3 --B2 O3 are mixed together along with... | 08/27/1991 |
| 5029143 | Shaft rub simulator A synthesizer for complex acoustic signatures includes a generator for an ectrical analog of a complex acoustic waveform corresponding the the "shaft rub" noise produced by the interaction of a marine propeller shaft and a stern tube or other through-the-... | 07/02/1991 |
| 4997249 | Variable weight fiber optic transversal filter A transversal filter uses optical components to provide for a wide bandwi, greater than 10 GHz signal processing capability. rf modulated optical signals are fed over different lengths of optical fibers to impart appropriate tap delays and each is couple... | 03/05/1991 |
| 4991165 | Digital adaptive interference canceller An interference canceller for cancelling an interfering signal generated by n interfering source from a transmission link between an antenna and a receiver. The interference canceller derives a sample of the interfering signal from the interfering source a... | 02/05/1991 |
| 4929837 | Method for detecting pinholes and incomplete coverage of hermetic coatings on optical fiber waveguides A method detects incomplete coverage of hermetic coatings applied to opti fibers during in-line optical fiber fabrication procedures as well as off-line applications. A fluorescent material surrounds the core region of the optical fiber prior to the form... | 05/29/1990 |
| 4919382 | Multi-post yoke gimbal A multi-post gimbal mechanism for imparting motion to an object about a cer of rotation including a frame for supporting the object and a plurality of elongated posts coupled to the frame so as to permit orbital rotation of the frame about each of the co... | 04/24/1990 |
| 4904966 | Suspended substrate elliptic rat-race coupler A suspended substrate rat-race coupler utilizes an elliptic configuration of the usual circular rat-race coupler on a circuit card positioned within below cut-off suspended substrate housing channels. The channels within the suspended substrate housing ar... | 02/27/1990 |
| 4894795 | High-resolution technique for time-frequency signal analysis using modified wigner-ville analysis An apparatus and method of improving the resolution of a linear FM signal s(t)=a(t)cos $c;(t) where $c;(t)=2π(so t+t2) is provided by a modified computation of the Wigner-Ville Distribution. An analytical signal ##... | 01/16/1990 |
