Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 8085188 | Method and apparatus for determining a deviation between an actual direction of a launched projectile and a predetermined direction A method of determining a deviation of a path of a projectile from a predetermined path. The method uses an image of a target area in which the desired path or direction is pointed out. Subsequently, the real direction or path is determined and the deviation determi... | 12/27/2011 |
| 8049661 | Antenna array with robust failed-element processor An array antenna has elements spaced less than one-half wavelength in order to produce a spatial pattern which has both visible and invisible regions. The elements in their nominal state are weighted so as to define particular sidelobe levels. In the presence of fai... | 11/01/2011 |
| 8026844 | Radar visibility model A method for determining whether a target of interest located within radar resolution cells in a target area of interest is detectable with a radar system from a location and elevation of the radar system is described. The method includes the steps of (a) developing... | 09/27/2011 |
| 8009085 | Level gauge with positive level verifier A level verification system for a radar level gauge utilizes a remotely positionable target. The target is positioned inside of a tank that is subject to level measurement, and stowed at a first position and selectively positionable to a second position to reflect e... | 08/30/2011 |
| 7999726 | Antenna pointing bias estimation using radar imaging A system for estimating an antenna boresight direction. The novel system includes a first circuit for receiving a Doppler measurement and a line-of-sight direction measurement corresponding with the Doppler measurement, and a processor adapted to search for an estim... | 08/16/2011 |
| 7965228 | Quasi-compact range An antenna method and system to implement a quasi-compact range technique/technology in which a reflector antenna is used to produce a test field within a test region at a quasi-compact range, which is within a near-field of the reflector antenna but further from th... | 06/21/2011 |
| RE42472 | Main beam alignment verification for tracking antennas A method for main beam alignment verification includes providing data pertaining to one or more patterns associated with an antenna, measuring power levels of a signal acquired by the antenna, and comparing the measured power levels with the data to determine whethe... | 06/21/2011 |
| RE42316 | Systems and methods for self-test of a radar altimeter Systems and methods for testing a signal generated by a Direct Digital Synthesizer (DDS) in a radar altimeter. In an embodiment of the method, a voltage signal derived by comparing a fixed reference frequency to a ramped frequency signal generated by the DDS based o... | 05/03/2011 |
| 7893866 | Dynamic replanning algorithm for aircrew display aid to assess jam effectiveness The invention generally relates to the field of computer software particularly to an improved method of providing aircrew decision aids for use in determining the optimum placement of an Electronic Attack (EA) aircraft. The core of the invention is a software progra... | 02/22/2011 |
| 7889121 | Transmit/receive module A transmit/receive module that reduces size and weight of a radar apparatus is disclosed. The transmit/receive module includes a transmit input terminal, a receive output terminal, a transmit line, a receive line, and a plurality of branch devices. During monitoring... | 02/15/2011 |
| 7847723 | Program to generate an aircrew display aid to assess JAM effectiveness The invention generally relates to the field of computer software particularly to an improved method of providing aircrew decision aids for use in determining the optimum placement of an Electronic Attack (EA) aircraft. The core of the invention is a software progra... | 12/07/2010 |
| 7791531 | VOR monitoring receiving apparatus and VOR monitor receiving method A VOR monitoring receiving apparatus includes a receiving circuit for receiving a field signal from a VOR apparatus, and outputting content of the field signal to a plurality of signal systems, first and second monitoring receiving circuits provided in first and sec... | 09/07/2010 |
| 7773030 | Method and system for antenna training and communication protocol for multi-beamforming communication A method and system for antenna training for communication of multiple parallel data streams between multiple-input multiple-output communication stations is provided. An implementation involves performing antenna training by obtaining optimal antenna training coeff... | 08/10/2010 |
| 7737883 | Method for using a dynamic mission replanning algorithm as an aid to assess jam effectiveness The method generally relates to the field of computer software particularly to an improved method of providing aircrew decision aids for use in determining the optimum placement of an Electronic Attack (EA) aircraft. The core of the method is a software program that... | 06/15/2010 |
| 7737884 | Method for the operation of a radar system The invention relates to a method for operating a radar system (100) especially of a motor vehicle (200), comprising at least one first sensor module (110a) and at least one additional sensor module (110b). A detection range... | 06/15/2010 |
| 7683828 | System and method for measuring phase and power variance A device and method for measuring phase and power shifts in a simultaneous dual polarization radar system comprises an access port, a quadrature mixer, and a power detector. The access port is configured to couple to the simultaneous dual polarization radar system n... | 03/23/2010 |
| 7675460 | In-vehicle radar apparatus and method for manufacturing the same An in-vehicle radar apparatus includes a beam emitting part that emits a beam, a casing that supports the beam emitting part, and a reference unit that is attached to the casing and is equipped with multiple surfaces usable as a reference plane. A surface of the cas... | 03/09/2010 |
| 7545313 | Off-axis angle estimation method and apparatus using the same Without using a traveling velocity of a vehicular object mounted with a radar device, an off-axis angle which is an offset angle between a reference direction of the radar device and a traveling direction of the vehicular object is estimated. An off-axis angl... | 06/09/2009 |
| 7541970 | Weather radar with spurious reflection lobe mitigation A weather radar system is capable of mitigating the effects of spurious reflections caused by a reflection lobe. Processing electronics can be used to sense weather and to identify spurious reflections caused by the reflection lobe. The reflection lobe can be caused... | 06/02/2009 |
| 7541971 | Automatic bright band detection and compensation A weather radar system has bright band detection and compensation. The weather radar system determines that high reflectivity in weather is a bright band and reduces an encoded return level from the bright band to compensate for it on a display. The weather radar sy... | 06/02/2009 |
| 7538718 | Radar system Detection of failure mode peculiar to a high-electron mobility transistor is available. A control circuit controls a gate voltage switching portion so that the gate voltage applied to a transistor may become a given checking voltage. The checking voltage may be set ... | 05/26/2009 |
| 7532156 | Radar apparatus In a radar apparatus having a plurality of antennas having switches respectively, malfunctions of the switches are detected by comparing the reception signal levels of the respective antennas with one another. Specifically, if the difference among the reception sign... | 05/12/2009 |
| 7522096 | Method for phase calibrating antennas in a radar system A method for phase calibrating antennas in a radar system is disclosed. The method comprises providing a transmit antenna and two or more receive antennas, the receive antennas each in communication with a respective receiver channel. A radio frequency pulse having ... | 04/21/2009 |
| 7515096 | Program to generate an aircrew display aid to assess jam effectiveness The invention generally relates to the field of computer software particularly to an improved method of providing aircrew decision aids for use in determining the optimum placement of an Electronic Attack (EA) aircraft. The core of the invention is a software progra... | 04/07/2009 |
| 7511657 | Aircrew display aid to assess jam effectiveness The invention generally relates to the field of computer software particularly to an improved method of providing aircrew decision aids for use in determining the optimum placement of an Electronic Attack (EA) aircraft. The core of the invention is a software progra... | 03/31/2009 |
| 7456781 | Radar A radar includes a transmission section, a heterodyne reception section, a power supply section and a detection section. The transmission section emits a transmission wave to a target. The heterodyne reception section receives a reflected wave from the target. The p... | 11/25/2008 |
| 7436350 | Combined aircraft TCAS/transponder with common antenna system The present invention is a combined aircraft TCAS/Transponder with common antenna system and transmitter. Common TCAS/Transponder multi-monopole top and bottom antennas may be connected to a top and bottom antenna modules, the top and bottom antenna modules being el... | 10/14/2008 |
| 7432851 | Method and device for determining the state of travel of a vehicle A method and a device for determining the state of travel, whether stationary or moving along, of a vehicle. The method includes equipping at least one wheel (2) with a magnetic sensor (4) having an axis of maximum sensitivity, measuring a signal at th... | 10/07/2008 |
| 7429947 | Radar apparatus for detecting distance or velocity with respect to an object A radar apparatus includes a plurality of receiver circuit systems to correspond with a plurality of receiving antennas. Channel signals having the same characteristics are generated by the switching operation of a second switch from a received channel signal receiv... | 09/30/2008 |
| 7429948 | Device and method for calibrating and improving the accuracy of barometric altimeters with GPS-derived altitudes In a combined GPS/altimeter device, the calibration and hence the accuracy of barometric altimeter measurements are enhanced with the aid of derived altitudes from a GPS. The device determines the need for calibration and perform the subsequent computations necessar... | 09/30/2008 |
| 7427946 | Object sensing apparatus While an FM-CW mode for sensing an object, in which a frequency of an electromagnetic wave transmitted from a transmission/reception antenna 6 is continuously modulated, and also, a CW mode for judging an abnormal condition, in which the frequency of the elec... | 09/23/2008 |
| 7427947 | Aircrew aid to assess jam effectiveness The invention generally relates to the field of computer software particularly to an improved method of providing aircrew decision aids for use in determining the optimum placement of an Electronic Attack (EA) aircraft. The core of the invention is a software progra... | 09/23/2008 |
| 7425918 | System and method for the measurement of full relative position and orientation of objects Methods are provided where: a signal is transmitted from an illuminating source and received cavity waveguides disposed on an object; a position and/or orientation of the object is determined based on the signal received in the waveguides; and data representing the ... | 09/16/2008 |
| 7420504 | Method of operating a multibeam radar A method of operating a multibeam radar carried on a platform flying a mission over a prescribed flight path to obtain images of a plurality of target areas, the beams of said radar being the result of respective transmit pulses and beam returns being received by re... | 09/02/2008 |
| 7417586 | Methods and systems for interferometric cross track phase calibration A method to compensate for variances in signal path delays for a plurality of radar return processing channels is described. The method comprises providing a signal in the signal path between an antenna and a corresponding receiver of each radar return processing ch... | 08/26/2008 |
| 7406115 | Method for evaluating spread spectrum radar and spread spectrum radar A spread spectrum radar performs a target detection process in a first mode. The target detection process includes performing a slide unit detection a plurality of times while sliding transmission code by predetermined number of chips. The slide unit detection inclu... | 07/29/2008 |
| 7397420 | Timing adjustment method for radar, and radar apparatus having automatic timing adjusting function On/off timing of an amplifier and timing of antenna selection are accurately adjusted. When adjusting the on/off timing of the amplifier, modulation of a transmit signal is stopped, and a switch is set so as not to select any one of the antennas, thereby totally ref... | 07/08/2008 |
| 7397419 | Radar apparatus and failure detection method thereof The present invention provides a radar apparatus, which can diagnose failure at low cost with high accuracy, and a failure diagnosis method thereof. An antenna serves as both a transmit antenna and a receive antenna. A transmit and receive select switch switches the... | 07/08/2008 |
| 7391362 | Linear FM radar A FM-CW radar system comprises a frequency modulated continuous wave digital generator that produces both in-phase (I) and quadrature-phase (Q) outputs to orthogonally oriented transmitter antennas. A linearly polarized beam is output from a switched antenna array t... | 06/24/2008 |
| 7379018 | System and method for verifying a radar detection The method and system provide provisions for generating a respective detection state value associated with each of a plurality of RF receive beams. A first state value is indicative of a detection. The method and system further provide provisions, for each of the de... | 05/27/2008 |
