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| Number | Title | Issue Date |
| 4590569 | Navigation system including an integrated electronic chart display A navigation system particularly adapted for ships making a passing within a harbor or the like, utilizing signal inputs from on-board vessel position determining equipment such as Loran or Decca apparatus and an on-board object detecting equipment such a... | 05/20/1986 |
| 4551724 | Method and apparatus for contour mapping using synthetic aperture radar By using two SAR antennas spaced a known distance, B, and oriented at substantially the same look angle to illuminate the same target area, pixel data from the two antennas may be compared in phase to determine a difference Ɗ$c; from which a slant ang... | 11/05/1985 |
| 4443797 | Radar display apparatus Radar display apparatus employs digital techniques to convert range/azimuth scan to T.V. scan. A digital store contains data defining the brightness of levels for the picture cells of a T.V. display. The store is continuously updated in accordance with re... | 04/17/1984 |
| 4435707 | Weather radar with signal compensation for precipitation A weather radar incorporating a sensitivity time control modifying circuit for adaptively increasing the gain of the IF amplifier as a function of precipitation rate; thereby increasing the range of the radar through the precipitation and identifying on t... | 03/06/1984 |
| 4352105 | Display system A system for displaying two functions of two variables. In one form, for displaying range and intensity functions for active infrared radar images, the system maps range information into hues, and intensity information into different apparent brightness l... | 09/28/1982 |
| 4223252 | Color switching display system A deflection amplifier gain correction circuit for a beam penetration color cathode ray tube having a split high voltage anode in which the deflection waveform is shaped as a non-linear function of the final anode voltage and as a function of a dynamic fo... | 09/16/1980 |
| 4179681 | Target tracking sonar signal processing and display system A sonar signal processing and display system is described which converts log return data to digital form for storage in a magnetic core memory, from which the data can be reconstituted as analog video signals for CRT display at a higher frame rate. Descr... | 12/18/1979 |
| 4162494 | Method and apparatus for displaying radar video registered with computer generated data on a television monitor A method and apparatus for use in air-traffic control are described for maintaining substantial registration alignment between radar video signals and associated computer generated data on a television monitor. It is a requirement of the monitor display t... | 07/24/1979 |
| 4105912 | Radar viewing device The viewing screen of a radar apparatus contains a pair of luminescent layers having green and red luminescing colors respectively. The color of the radar image may be altered by photosensitive means responsive to ambient light which alters the anode volt... | 08/08/1978 |
| 4100481 | Hydrocarbon exploration with display of re-radiated and reflected microwave energy In the exploration for hydrocarbon gas, microwave energy is radiated from an antenna transported along a traverse above the surface of the earth. Microwave energy re-radiated from gas seeps is detected. Microwave energy reflected from hard targets along t... | 07/11/1978 |
| 4071843 | Video color display system A video color display system in which a synthetic image consisting of fixed and variable symbols and a radar image representing raw video are shown simultaneously and each in a plurality of shades. The video image supplied by a radar is converted into x a... | 01/31/1978 |
| 4060791 | Imaging system An energy imaging system providing high resolution at the center of the field of view and reduced resolution as a function of the distance away from the center.... | 11/29/1977 |
| 4038658 | Moving target speed and direction determining radar system A radar is mounted on an airplane with a pair of antennas affixed to the airplane and directed to one side thereof for providing a relatively narrow radar beam squinted approximately 20° ahead of a line transverse to the direction of motion and approxima... | 07/26/1977 |
| 4026144 | Apparatus for the generation of polychromatic ultrasonographs Apparatus for a color coded visualization of ultrasonic field patterns resenting differences in acoustical impedance within a solid or liquid body. Colored ultrasonic images are obtained in response to a multifrequency interrogation of a test specimen by... | 05/31/1977 |
| 3992707 | Reproduction of a field of view as scanned by a remote controlled aircraft The field-of-view is line-scanned transverse to movement of a vehicle such as an aircraft and the line scan signal is transmitted to a ground station in which a frame is assembled on a line for line basis with updating by each new scanning line to obtain ... | 11/16/1976 |
| 3986160 | Visualization by ultrasonic detection A system for sensing by ultrasonic vibrational energy the shape and character of objects immersed in a visually opaque transmission medium is disclosed. Frequency modulated ultrasonic waves are projected to irradiate an object, with reflected energy from ... | 10/12/1976 |
| 3971018 | Marine traffic conflict assessment system The invention is a radar harbor surveillance sensor, computer, and display system for providing a graphic display of vessels negotiating confined navigation channels and permitting rapid and accurate assessment of the degree of hazard or safety in the mov... | 07/20/1976 |
