Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 6574330 | Bus interface for automatic call distributor An automatic call distribution system includes an automatic call distribution network, a plurality of network terminations interconnectable with the automatic call distribution network using a first bus protocol, and an interface which is interconnectable... | 06/03/2003 |
| 6385637 | Periodic process timer A periodic process timer is incorporated into a multi-tasking operating system of an automatic call distributor system. The process timing method includes the steps of: a) initializing a plurality of accumulator values corresponding to a single process of... | 05/07/2002 |
| 6330356 | Dynamic visual registration of a 3-D object with a graphical model The invention displays computer graphics in combination with imagery of real objects, while maintaining apparent alignment notwithstanding any changes of viewpoint of an imaging device relative to the real object. A computer executed control loop recogniz... | 12/11/2001 |
| 6256135 | Diffusely-reflecting reversible electrochemical mirror A reversible electrochemical mirror device includes a substantially transparent first electrode having a textured surface, and a second electrode which may be distributed in localized areas. An electrolytic solution, disposed between the first and second ... | 07/03/2001 |
| 6252258 | High power rectifier A high power rectifier device has an - drift layer on an N+ layer. A number of trench structures are recessed into the drift layer opposite the N+ layer; respective mesa regions separate each pair of trenches. Each trench structure includes oxide side-wal... | 06/26/2001 |
| 6246157 | Push-pull high force piezoelectric linear motor A high force linear displacement piezoelectric motor operates with equal force and reliability in both the push and pull mode. The new motor includes a split motor shaft having with two shaft segments that are coaxially affixed to opposite sides of an exp... | 06/12/2001 |
| 6218972 | Tunable bandpass sigma-delta digital receiver A tunable bandpass sigma-delta modulator analog-to-digital converter (A/D converter or ADC) utilized in conjunction with a digital signal processor (DSP) to eliminate the analog frequency synthesizer in a radio design is disclosed. The sigma-delta ADC gre... | 04/17/2001 |
| 6208247 | Wireless integrated sensor network using multiple relayed communications Wireless integrated miniature sensing stations which can be organized into a communicating network allow sensitive detection and analysis of vibration, infrared radiation, sound, or other physical signals indicative of an intruder or condition to be monit... | 03/27/2001 |
| 6208284 | Radar augmented TCAS An improved traffic alert and collision avoidance method and device wherein TCAS data is augmented by higher resolution radar data. By using radar to search out targets, altitude information can be developed for those aircraft not equipped with altitude r... | 03/27/2001 |
| 6188353 | Interbuilding and urban canyon extension solution for global positioning systems A global positioning system (GPS) and auxiliary receiver receive limited range position signals broadcasted from telemetry transmitters when in an urban canyon environment. The limited range receivers preferably are implemented as part of the lighting inf... | 02/13/2001 |
| 6151354 | Multi-mode, multi-band, multi-user radio system architecture A multi-mode, multi-band, multi-user radio system architecture includes four channels of exciter circuits and receiver circuits coupled to a digital signal processing array. Each of the exciter and receiver circuits includes three separate signal paths fo... | 11/21/2000 |
| 6144359 | Liquid crystal displays utilizing polymer dispersed liquid crystal devices for enhanced performance and reduced power Disclosed is an avionics display device for use in the cockpit of an aircraft. The display device includes a liquid crystal display adapted for using a source of light to display information to a viewer and a backlight adapted to controllably provide a po... | 11/07/2000 |
| 6140958 | Remote position sensing system for use with an unmanned apparatus A system for monitoring guiding and controlling an unmanned, unteathered flight vehicle, generally assumed to be moving through the earth's atmosphere at a high rate of speed. The system is comprised of on-board positional receiver and processing means co... | 10/31/2000 |
| 6087973 | Increased accuracy of range measurement between data link systems A method for increasing the accuracy of ranging measurements between data link systems is described. The method, actively aided ranging, increases ranging measurement accuracy by decreasing the dependence of the measurement on the relative clock bias betw... | 07/11/2000 |
| 6061008 | Sigma-delta-sigma modulator for high performance analog-to-digital and digital-to-analog conversion A sigma-delta-sigma modulator for analog-to-digital and digital-to-analog converters is described. The sigma-delta-sigma modulator is amenable to fabrication of high speed LSI and VLSI digital components for fixed and programmable processes for minimizing... | 05/09/2000 |
| 6043855 | Liquid crystal display having a low profile surface mount switch Disclosed is an avionics display device adapted for insertion into an avionics panel of an aircraft. The avionics display device includes a liquid crystal display having a liquid crystal display element and a bezel surrounding the liquid crystal display e... | 03/28/2000 |
| 6039451 | Sculptured transflector for dual mode active matrix liquid crystal display backlight Disclosed are a backlight and avionics display using the same to provide light to a liquid crystal display (LCD) device. In the backlight, a day mode light source positioned on a first side of the LCD device and adapted to provide a first source of light ... | 03/21/2000 |
| 6021323 | Direct conversion receiver with reduced even order distortion A mixer for use in a direct conversion receiver includes a compensating differential amplifier which injects equal amplitude opposite phase currents with respect to even order distortion currents. The compensating differential amplifier utilizes an ideal ... | 02/01/2000 |
| 6009120 | Multi-dimensional combined equalizer and decoder A multi-dimensional equalizer/decoder is disclosed for equalizing a channel transmitting electrical pulses corresponding to a plurality of interdependent symbols formed according to the rules of a multi-dimensional code (e.g. block lattice coded modulatio... | 12/28/1999 |
| 6009335 | Method of calibrating and testing spatial nulling antenna A method and apparatus is provided for calibrating and detecting faults in a receiver having a multi-element antenna. The method includes the steps of selecting an antenna element of the multi-element antenna and transmitting a signal through the selected... | 12/28/1999 |
| 6005398 | High speed phase and amplitude measurement system and method An impedance measurement system rapidly determines impedance of a sinusoidal signal at a known frequency. The sinusoidal signal can represent a forward voltage, a reflected voltage, a voltage, or a current on a transmission line. The impedance calculation... | 12/21/1999 |
| 5990826 | Interbuilding and urban canyon extension solution for global positioning systems A global positioning system (GPS) and auxiliary receiver receive limited range position signals broadcasted from telemetry transmitters when in an urban canyon environment. The limited range receivers preferably are implemented as part of the lighting inf... | 11/23/1999 |
| 5991460 | Navigation system using hybrid sensor correlation system A method and apparatus for correlating outputs of a plurality of environmental sensor signals to determine a situation. The method includes the steps of dividing a coherent light beam across a diameter of the light beam into a plurality of information tra... | 11/23/1999 |
| 5987089 | Programmable divider with controlled duty cycle A programmable divider or prescaler divides an input signal by a divisor of two raised to the mth -power plus one, (2m +1), where m is an integer, and n is a value between zero and two raised to the mth -power minus one, (... | 11/16/1999 |
| 5983315 | System and method for establishing priorities in transferring data in burst counts from a memory to a plurality of FIFO stages, each having a low, intermediate, and high region Each of a plurality of FIFO has (1) a low region indicating a minimum number of words for FIFO storage, (2) a burst count indicating the number of words involved in each transfer to such FIFO and (3) a high region where a word count transfer into the FIFO... | 11/09/1999 |
| 5973760 | Display apparatus having quarter-wave plate positioned to eliminate conflicts with polarized sunglasses A display apparatus adapted for viewing by a person wearing linearly polarized lenses, such as sunglasses, is disclosed. The display apparatus includes a display device, such as an LCD or a filtered TFEL display, which displays information by providing as... | 10/26/1999 |
| 5973308 | Efficient dielectric heater A novel dielectric heater including a RF source having a first impedance, a parallel plate mold having a second impedance, and an impedance network, matching the first impedance to the second impedance, connected to the RF source and the parallel plate mo... | 10/26/1999 |
| 5965878 | Performing quadrature and push button function utilizing two IR emitter/detector pairs A selector assembly for use in avionic multifunctional displays to perform quadrature and push button functions is described herein. The selector assembly utilizes two sensors and a cylindrical band with an encoder pattern having three distinct zones to s... | 10/12/1999 |
| 5943008 | Single global positioning system receiver capable of attitude determination A platform attitude determination can be made with a single receiver in a global positioning system (GPS). The receiver receives at least three sets of GPS signals from three antennas. Two of the GPS signals are delayed so that the receiver receives each ... | 08/24/1999 |
| 5940026 | Azimuth determination for GPS/INS systems via GPS null steering antenna Illustrative embodiments of a method and apparatus are provided for determining azimuth for a system using signals from a constellation of satellites of the global navigation satellite system. The method includes the steps of identifying a direction of a ... | 08/17/1999 |
| 5936552 | Integrated horizontal and profile terrain display format for situational awareness A visual display format for a terrain situational awareness system comprising a horizontal terrain elevation view and a profile terrain elevation view of potential terrain hazards integrated onto a single display.... | 08/10/1999 |
| 5932875 | Single piece integrated package and optical lid A lid for protecting and covering an integrated circuit provided in a chip-on-board package is disclosed. The lid has a wall surrounding the integrated circuit, and a top cover covering the integrated circuit, with the wall and top cover provided in a sin... | 08/03/1999 |
| 5932055 | Direct metal fabrication (DMF) using a carbon precursor to bind the "green form" part and catalyze a eutectic reducing element in a supersolidus liquid phase sintering (SLPS) process Direct Metal Fabrication of metal parts is accomplished with a continuous thermal process in which partial reduction of the "green form" part leaves a thin carbon film that maintains the part's structural integrity. The remaining carbon catalyzes a eutect... | 08/03/1999 |
| 5930428 | Blind-mate fiber optic connector with integral optoelectronic receiver circuits A connected fiber optic electrical or avionics system is disclosed. The system includes a line replaceable unit (LRU), such as an avionics primary flight display LRU, adapted for insertion into a chassis such as an airframe. An LRU connector coupled to th... | 07/27/1999 |
| 5925988 | Backlight using transverse dynamic RF electric field and transparent conductors to provide an extended luminance range Disclosed are a backlight and a method of driving the same to provide a uniform low intensity source of light for a liquid crystal display. The fluorescent lamp includes a fluorescent lamp and a drive circuit coupled to the anode and to the cathode of the... | 07/20/1999 |
| 5917448 | Attitude determination system with sequencing antenna inputs An attitude determination system uses multiple antenna inputs which are time-multiplexed into a multi-channel receiver. Each channel tracks one incoming signal from a known or ascertainable source. For each of the incoming signals being tracked, digital p... | 06/29/1999 |
| 5909426 | Orthogonal LMS algorithms for fast line echo canceler training An echo canceler for calculating an echo impulse response during a training sequence, wherein a sequence of data samples is selected such that a full rank data correlation matrix comprised of such data samples is diagonal at the Nth iteration. The echo ca... | 06/01/1999 |
| 5905779 | Automatic dial-up software update system An automatic software update system (10) includes a first computer (12) at a first site and a second computer (14) at a second site remote from the first site. The first computer (12) includes, for example, a modem (16) for automatically initiating a dial... | 05/18/1999 |
| 5903654 | Method and apparatus for eliminating ionospheric delay error in global positioning system signals A method and apparatus for determining and removing the error in the SPS measurement of the Global Positioning System due to ionospheric delay. The disclosed technique utilizes semi-codeless technique to provide high accuracy GPS measurements. The delay o... | 05/11/1999 |
| 5903194 | Digital phase modulation of frequency synthesizer using modulated fractional division A phase-locked loop frequency synthesizer system is provided using fractional frequency division and a fractional control number for phase modulating an output of the frequency synthesizer using an incoming information signal. The apparatus includes a del... | 05/11/1999 |
