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| Number | Title | Issue Date |
| 4415974 | Airspeed display scale with integral trend indication A digitally activated display scale in association with digital-electronic ircuitry, displays both the airspeed and airspeed trend of a landing aircraft. The digital/electronic circuitry process an analog voltage corresponding to an airspeed range of 80 to... | 11/15/1983 |
| 4415898 | Method of determining the material composition of a dielectrically coated radar target/obstacle An apparatus for and a method of determining the material properties of a dielectric and/or conducting radar target by deciphering the backscattered signals returned from the target is disclosed. The resonance "code" of the echo signals from the target is... | 11/15/1983 |
| 4414641 | Digital m of n correlation device having increased bit rate A digital m of n correlation device using signal and reference shaft registers, modulo 2 adders, unique 1-bit D/A converters, and single resistor analog summing provides a very fast correlation product for pulse compression modulations such as phase or fr... | 11/08/1983 |
| 4413906 | Passive optical rangefinder/sextant having search capability Uniquely integrating a search mirror and a deflection mirror with a passive ptical rangefinder and a remote sextant, enhances the operation of both devices. The improved rangefinder/sextant provides day/night 360° azimuthal and at least -5° to about 60°... | 11/08/1983 |
| 4412387 | Digital compass having a ratiometric bearing processor A digital compass including a two-axis earth's magnetic field sensor and a earing processor computes the bearing for local display or transmission from a remote site to a local site for display and/or storage. The bearing processor portion of the digital c... | 11/01/1983 |
| 4403323 | Optical transistor A device which uses a light signal to control the amplification of light is disclosed. Optically active ions in a laser material are pumped to an intermediate energy state by light of a first frequency, and thereafter pumped from the intermediate energy s... | 09/06/1983 |
| 4395951 | Water-armed/air-safed release apparatus An improved release apparatus, including an actuator device, a release dee and a firing device, releases the firing device in a water environment and not in an air environment when the actuator device is remotely actuated. When in a water environment, a ... | 08/02/1983 |
| 4391651 | Method of forming a hyperabrupt interface in a GaAs substrate A method of fabricating improved semiconductor devices, such as FET's, wh require or are improved by a hyperabrupt interface between the active channel and the underlying insulating region. A substrate, such as GaAs, is polished and then implanted with l... | 07/05/1983 |
| 4388588 | Flush mountable plasma density profile probe device Information about the plasma density profile in an aerodynamic flow field of plasma adjacent a supersonic space vehicle or test model is provided by a flush mountable plasma density profile probe device having at least three striplines embedded in and sep... | 06/14/1983 |
| 4384254 | Oscillator/driver circuit for fluxgate magnetometer A low power expenditure oscillator/driver circuit including a transistor drive and control windings connected thereto and being operatively wound on a magnetic core suitable for use in a fluxgate magnetometer is disclosed. Its low power expenditure feat... | 05/17/1983 |
| 4380774 | High-performance bipolar microwave transistor A high-frequency transistor and method of making same wherein the parasitic apacitance between base and collector is reduced. The collector layer of GaAs is impregnated with boron ions to form an insulative region under the base contact structure thereby r... | 04/19/1983 |
| 4373189 | Signal conversion device A solid-state, signal conversion circuit for converting electrical, periodic analog signals to other analog signals of different amplitude and/or frequency and/or phase is disclosed. The input signal is demodulated, scaled and sampled and each sample conv... | 02/08/1983 |
