Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 5535053 | Night vision goggle assembly with independant monocular devices A modular night vision device wherein either one or two night vision monocular assemblies can be joined to a common mount to selectively create either a monocular night vision apparatus or a binocular night vision apparatus. Electrical contacts are presen... | 07/09/1996 |
| 5532690 | Apparatus and method for monitoring and bounding the path of a ground vehicle 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 GP... | 07/02/1996 |
| 5495240 | Master-slave data transmission system employing a flexible single-wire bus A master-slave data transmission system employs a flexible single-wire bus and where any master unit can send data to or read data from any slave at a single time. Data transfer is accomplished by means of a flexible message format having a variable-lengt... | 02/27/1996 |
| 5490076 | Apparatus and method for autonavigation with one or more orbiting satellites and an anchor station A system of making satellite-to-ground range measurements, carrying out communications between a ground station and a constellation of autonavigating satellites, and using these range measurements to improve navigation accuracy is disclosed. The system co... | 02/06/1996 |
| 5471374 | Illuminator bracket for a night vision device The present invention is a bracket for coupling an illuminating device having an independent power supply to a night vision device having a separate power supply, wherein the illuminating device coupled to the housing of the night vision device will draw ... | 11/28/1995 |
| 5470266 | Low temperature process and apparatus for cleaning photo-cathodes A low temperature apparatus and process exists for cleaning photo-cathodes used A lo VW pV:image intensifier tubes. The process comprises the steps of applying atomic or molecular particles of a plasma to a photo-cathode for the purpose of removing contam... | 11/28/1995 |
| 5455711 | Magnification lens coupling device for a night vision assembly A coupling device and associated method for coupling an unassociated afocal optical assembly to a night vision apparatus in order to alter the optical power normally associated with the night vision. The coupling device includes two separate adapter rings... | 10/03/1995 |
| 5453782 | Automatic exposure and gain control for low light level television camera 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 pi... | 09/26/1995 |
| 5448671 | Replacement assembly for an image intensifier device including fiber optic inverter expander The present invention is an image intensifier assembly that includes a Generation III image intensifier tube coupled to a single piece fiber optic inverter expander element. The single optical couple to the fiber optic expander element greatly enhances th... | 09/05/1995 |
| 5444568 | Consumer night vision viewing apparatus A night vision goggle device is fabricated for consumer use. The device employs interpupillary and diopter adjustments for each eye of the user. The combined adjustment mechanism incorporates manually operable control knobs located on the housing and one ... | 08/22/1995 |
| 5444507 | Device for coupling night vision assembly to a video camcorder An apparatus and associated method of joining a night vision device to a camera device to record images during night time or low light conditions. The present invention includes a substantially rigid mounting plate that connects to the bottom surfaces of ... | 08/22/1995 |
| 5428840 | Monolithic double balanced microstrip mixer with flat conversion loss A double balanced microstrip mixer circuit for a monolithic microwave integrated circuit comprising a diode ring modulator coupled to a first balun for supplying radio frequency signals to the mixer circuit and a second balun for supplying a signal genera... | 06/27/1995 |
| 5428327 | Microwave feedthrough apparatus An improved microwave feedthru apparatus is disclosed which provides enhanced performance over the 1-20 GHz frequency range. In its preferred embodiment the apparatus will be used to transmit microwave signals into and out of monolithic microwave integrat... | 06/27/1995 |
| 5424631 | Hybrid instantaneous frequency measurement compressive receiver apparatus and method The present invention hybrid instantaneous frequency measurement (IFM) compressive receiver processes a wide bandwidth of incoming signals in two processing channels, where a small time delay is introduced to one of the two channels by a time delay stage.... | 06/13/1995 |
| 5422952 | Dynamic radio communications system A communication system includes a plurality of subscribers each of said subscribers having a transceiver including a transmitter and a receiver. In the system there are means coupled to each of said transceivers to enable said transmitter to transmit a un... | 06/06/1995 |
| 5420527 | Temperature and supply insensitive TTL or CMOS to 0/-5 V translator Voltage translator apparatus to translate TTL or CMOS logic level inputs to 0/-5 V logic levels that is insensitive to temperative and bias supply variation. A unique circuit structure comprises a level shift stage employing transistors configured to leve... | 05/30/1995 |
| 5418778 | Local and remote echo canceling apparatus particularly adapted for use in a full duplex modem An echo cancellation apparatus is included in a variable rate modem. The echo cancellation apparatus includes a local echo canceler, a remote echo canceler and a quadrature echo canceler unit. The local and remote echo cancelers both operate to cancel ech... | 05/23/1995 |
| 5417766 | Channel evaporator An evaporator for containing a second material which is to be evaporated onto a remotely located surface after a first evaporation of a first material, comprises a tubular member having crimped ends for preventing the second material from combining with t... | 05/23/1995 |
| 5414755 | System and method for passive voice verification in a telephone network A telephone long distance service is provided using speaker verification to determine whether a user is a valid user or an impostor. The user claims an identity by offering some form of identification, typically by entering a calling card number on the ph... | 05/09/1995 |
| 5414557 | Reticle apparatus for night vision devices Reticle apparatus that is affixed to the output surface of an image intensifier tube fiber optic element in a night vision goggle system. One embodiment provides for an illuminated reticle pattern. The reticle pattern is etched into a glass substrate whic... | 05/09/1995 |
| 5406234 | Tunable microwave filter apparatus having a notch resonator There is disclosed a tunable notch filter which has a bandpass characteristic and where a tunable notch is added to the bandpass filter by placing a resonator outside the input or output probe of the bandpass filter. The bandpass filter is a resonant type... | 04/11/1995 |
| 5404109 | Method and apparatus for testing circuits containing active devices A test system for measuring the characteristics of an active circuit employs a pulsed bias technique for periodically biasing the input control port of the active circuit into the active region of operation. Biasing is achieved with a bias voltage that is... | 04/04/1995 |
| 5404072 | Unistructural housing for an image intensifier tube The present invention is a vacuum housing for an image intensifier tube, wherein the vacuum housing is unistructurally formed from a dielectric material and retains a photocathode, microchannel plate (MCP) and anode within an evacuated environment. The va... | 04/04/1995 |
| 5402227 | High resolution multiple channel imaging spectrometer A high resolution multiple channel imaging spectrometer employing a pair of reflective gratings to create and separate, respectively, a spectrum of discrete spectral channels having high throughput and good channel isolation.... | 03/28/1995 |
| 5402034 | Conductive coating for an image intensifier tube microchannel plate An image intensifier tube having a conductive coating for draining away accumulated electrons that cause the image intensifier tube to lose resolution. The conductive coating is formed on the insulating surface of the image intensifier tube microchannel p... | 03/28/1995 |
| 5399927 | Solid state bypass circuit for RF and microwave active circuits An active circuit comprising a component coupled between an input terminal and an output terminal, the component requiring power to operate, and a bypass path which causes a signal to propagate from the input terminal to the output terminal via the compon... | 03/21/1995 |
| 5389901 | Microwave amplitude equalizer circuit A modified branch line coupler amplitude equalizer circuit employing cross arms and branch lines of varying lengths and impedances to minimize the return loss of the circuit.... | 02/14/1995 |
| 5384951 | Method of making anisotropically loaded helix assembly for a traveling-wave tube The present invention is an anisotropically loaded helix assembly for use in a traveling-wave tube, and the corresponding method for making the same. The present invention includes a helix circuit concentrically supported within a conductive cylindrical h... | 01/31/1995 |
| 5374899 | Self biased power amplifier employing FETs A power amplifier for microwave frequencies utilizes a FET device operating from a common voltage source. The voltage source has the positive terminal coupled to the drain electrode of the FET. The gate electrode of the FET is adapted to receive a RF sign... | 12/20/1994 |
| 5367402 | Helmet mounted night vision apparatus and method of separation A helmet mounted night vision device for a pilot that is automatically propelled away from the pilot before the pilot ejects from an aircraft, thereby preventing injury to the pilot caused by the night vision device striking the ejecting pilot. In a prefe... | 11/22/1994 |
| 5363069 | Electronically tunable gain equalizer An equalizer circuit for equalizing RF frequencies implemented as an MMIC or MIC having a series of microstrip transmission lines between an RF input terminal and an RF output terminal and having at least one shunt path comprised of a series combination o... | 11/08/1994 |
| 5360630 | Thin film intagliated phosphor screen structure A thin film, intagliated phosphor screen structure includes an optical fiber bundle in which each of the fibers has its glass core etched below the level of its cladding sheath at the internal surface of the screen, and a phosphor layer is deposited as a ... | 11/01/1994 |
| 5359545 | Dynamic video display for logic simulation systems An apparatus and corresponding method for converting static data, obtained for a simulated theoretical logic circuit, into a dynamic visual display. The present invention selectively reads static simulated data produced for a theoretical logic circuit, di... | 10/25/1994 |
| 5354694 | Method of making highly doped surface layer for negative electron affinity devices A negative electron affinity device has acceptor dopant concentration increased proximate the emitter face of the III-V semiconductor layer and within the depletion zone effected by an overlying CsO negative electron affinity coating. Methods to accomplis... | 10/11/1994 |
| 5349177 | Image intensifier tube having a solid state electron amplifier An image intensifier tube that utilizes a photoresponsive layer for producing electrons in response to received radiation, a solid state electron amplifier for multiplying the electrons produced by the photoresponsive layer, a cold cathode for emitting el... | 09/20/1994 |
| 5347397 | Diopter cell assembly for a binocular viewing system An optical device for reorienting an optical image from a first optical pathway to a second optical pathway and the method of manufacturing such an optical device. In a preferred embodiment, a housing is provided that defines at least two optical pathways... | 09/13/1994 |
| 5341066 | Anisotropically loaded helix assembly for a traveling-wave tube The present invention is an anisotropically loaded helix assembly for use in a traveling-wave tube, and the corresponding method for making the same. The present invention includes a helix circuit concentrically supported within a conductive cylindrical h... | 08/23/1994 |
| 5339385 | Speaker verifier using nearest-neighbor distance measure A speaker verification system which accepts or rejects the claimed identity of an individual based on analysis and measurements of the speaker's utterances. The utterances are elicited by prompting the individual seeking identification to read test phrase... | 08/16/1994 |
| 5338950 | Multiple port thin film capacitor A capacitor element for an integrated circuit comprises a thin layer of dielectric material laminarly disposed between first and second layers of electrically conductive material. Each of the layers has n sides, where n is an even intergergreater than fou... | 08/16/1994 |
| 5336881 | High light resolution control of an image intensifier tube The photocathode of an image intensifier is pulsed ON and OFF at a rate determined by a thyristor or SCR having the anode to cathode path coupled to the photocathode and the gate electrode triggered by a variable resistor, capacitor (RC) circuit to cause ... | 08/09/1994 |
