-
公开(公告)号：US10581471B1
公开(公告)日：2020-03-03
申请号：US16173672
申请日：2018-10-29
Inventor： Jonathan P. Beaudeau , Prabahan Basu , David J. Couto , William D. Watson
Abstract: An electronic transmitter includes: a generator circuit to generate a baseband signal; a modulator circuit to modulate a carrier signal with the baseband signal; an emitter to emit the modulated signal at an intended recipient; and a distortion circuit to apply a final distortion to the baseband signal or the modulated signal. The final distortion is optimized to minimize the ability of unintended recipients to localize the emitter using correlation-based techniques, and to minimize any degradation to the data rate of the emitted signal at the intended recipient. In some cases, the transmitter is part of an electronic communication system that also includes a receiver at the intended recipient. The receiver is aware of the final distortion and includes a collector to collect the emitted signal, and a demodulator circuit to demodulate the collected signal using the final distortion to recover the baseband signal.
-
公开(公告)号：US10578525B2
公开(公告)日：2020-03-03
申请号：US15667667
申请日：2017-08-03
Inventor： Michael J. Bowers, II , John E. King , Tadd C. Kippeny
Abstract: A method for detection and identification of a chemical using a preconcentrator to collect a sample of the chemical, process said sample of the chemical, and introduce said processed chemical into a chemical analysis instrument for the detection of and identification of the chemical. A system for detecting and identifying a chemical comprising a preconcentrator having at least dual concentrating elements.
-
443.发明申请公开(公告)号：US20200025862A1
公开(公告)日：2020-01-23
申请号：US16453281
申请日：2019-06-26
Inventor： Mark W. Oden
Abstract: A computer-implemented method of geolocating a target includes: receiving, from a plurality of sources, a corresponding plurality of angle estimates of the target relative to the respective sources; generating a corresponding plurality of planar renditions of the received angle estimates; selecting a combination of two or more planar renditions whose intersection defines a polygon; in response to multiple such combinations, selecting one having a largest number of planar renditions; and determining a center of the polygon of the selected combination. A computer-implemented method of evaluating geolocation geometry with respect to a target includes: geolocating the target from received sensor data of the target from multiple sources and location data of the sources; generating entries of a covariance matrix from the location data and the geolocation; deriving eigenvalues of the covariance matrix from the generated entries; and comparing the derived eigenvalues to evaluate the geolocation geometry with respect to the target.
-
公开(公告)号：US10541688B2
公开(公告)日：2020-01-21
申请号：US15832502
申请日：2017-12-05
Inventor： Kenneth R. Knowles , Daniel Pirkl
Abstract: A ring oscillator circuit is disclosed. The ring oscillator in one embodiment includes an odd number of inverters connected in a loop fashion, a current mirror having a drain of a first transistor connected to the inverters, and a self-biased inverter connected to a drain of a second transistor of the current mirror.
-
公开(公告)号：US10535495B2
公开(公告)日：2020-01-14
申请号：US15949168
申请日：2018-04-10
Inventor： Chris L. Willis , Eugene M. Lavely , Adam J. Marcinuk , Paul R. Moffitt , Jonathan R. Takahashi
IPC: H01J37/20 , H01J37/24 , H01J37/244
Abstract: A system and method for imaging a sample having a complex structure (such as an integrated circuit). The sample is placed on a motion system that moves the sample with respect to an electron beam generator that is used in imaging the sample. The motion system affords thirteen degrees-of-freedom for movement of the sample, by providing a rotation stage, a fine 6-axis piezoelectric-driven stage, and a coarse 6-axis hexapod stage. Various detectors gather information to image the sample. Interferometric and/or capacitive sensors are used to measure the position of the sample and motion system.
-
Patent Agency Ranking
公开(公告)号：US10521549B1
公开(公告)日：2019-12-31
申请号：US16123775
申请日：2018-09-06
Inventor： Richard J. Ferguson , Joseph R. Marshall, Jr. , George A. Sawyer
Abstract: A method for providing a power estimation for an electronic system is disclosed. Initially, a system architecture of an electronic system design is initially developed, and the system architecture of the electronic system design is then converted to a power flow architecture of the electronic system design. For each power domain within the power flow architecture of the electronic system design, a power domain type is designated. Subsequently, power information are added to the power flow architecture of the electronic system. Finally, a power roll-up calculation is performed on the power flow architecture of the electronic system design in order to yield a final system power value for the electronic system design.
-
公开(公告)号：US20190386398A1
公开(公告)日：2019-12-19
申请号：US16011227
申请日：2018-06-18
Inventor： David A. Mahoney
Abstract: A nonplanar metamaterial polarizer includes: a substrate including dielectric material transmissive to electromagnetic radiation and having a nonplanar shape; a first conductive pattern on a first side of the substrate; and a second conductive pattern on a second side of the substrate. The first and second conductive patterns are configured to alter the polarization of the electromagnetic radiation as it transmits through the substrate. In some cases, the first and second conductive patterns include split-ring resonators, and the nonplanar shape is a cylinder. An antenna system includes the nonplanar metamaterial polarizer and an antenna inside or adjacent to the nonplanar metamaterial polarizer and configured to transmit or receive the electromagnetic radiation through the nonplanar metamaterial polarizer while the nonplanar metamaterial polarizer alters the polarization of the transmitted or received electromagnetic radiation. In some cases, the antenna is a monopole antenna, a dipole antenna, a biconical antenna, or a discone antenna.
-
公开(公告)号：US10481116B2
公开(公告)日：2019-11-19
申请号：US15522823
申请日：2015-08-07
Inventor： John R. Franzini , Mark B. Lyles , Robert H. Murphy
Abstract: A nondestructive system and method for high resolution thermal imaging in metal casting applications is provided to detect defects and starts with the article under test being subjected to a thermal gradient, followed by infrared images taken thereof. The creation of the thermal gradient results in any defects reacting differently to the thermal gradient application to accentuate the defect in the infrared image. The apparatus for conducting the tests in one embodiment includes a single channel sensor, remote cable, and a laptop controller with real time image processing software. This hardware provides high resolution, real-time viewable infrared (IR) images with a variable focus distance adjustable from six inches to infinity. The apparatus enables crisp, clear imagery of various metal casting defects.
-
公开(公告)号：US10476053B2
公开(公告)日：2019-11-12
申请号：US15815461
申请日：2017-11-16
Inventor： Michael J. Grobecker , Kenneth D. Cleveland
Abstract: A battery door assembly for a battery compartment is disclosed. The battery door assembly includes a battery cover, glide track, a spring-loaded button, a locking tab and a plurality of hinges. The plurality of hinges is pivotally connected to a chassis of a scope. The locking tab keeps the battery cover from opening. The battery cover can be unlocked by first applying pressure on the spring-loaded button, and then sliding the spring-loaded button and the locking tab from one end of the glide track to another end of the glide track while maintaining the applied pressure on the spring-loaded button.
-
公开(公告)号：US10473746B1
公开(公告)日：2019-11-12
申请号：US15649117
申请日：2017-07-13
Inventor： Court E. Rossman , Thomas R. Vaccaro
Abstract: A system and method for rank estimation of electromagnetic emitters is provided. One aspect of the disclosure provides creating a graph of angles of arrival (AoAs) versus range and using a polynomial curve fit against the graph to determine a rank estimation of electromagnetic emitters. Another aspect of the disclosure provides using a search over parameters of the multiple polynomial curve fits, for each hypothesized rank, to optimize the rank estimation results. This search may be a greedy search to improve speed of convergence. Another aspect of the disclosure provides a metric ‘score’ to select the highest probability rank (number of emitters) based on the agreement between the multiple polynomial curve fits and residual AoA errors.
-
-
-
-
-
-
-
-
-
Search Results
1510
records
(took 0.055 seconds)
