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公开(公告)号：US10441177B2
公开(公告)日：2019-10-15
申请号：US15109140
申请日：2015-08-07
Inventor： John R. Franzini , Mark B. Lyles , Robert H. Murphy
Abstract: An apparatus for high resolution thermal imaging in medical applications has a single channel EMI shielded sensor, remote cable, and laptop controller with real time image processing software. The apparatus provides high resolution, real-time viewable infrared (IR) images with a variable focus distance adjustable from six inches to infinity. The present invention enables crisp, clear imagery of the thermal band for greater awareness of everything within the field of view. Various medical applications which would benefit from high resolution thermal imagery are presented.
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公开(公告)号：US10425096B1
公开(公告)日：2019-09-24
申请号：US15981210
申请日：2018-05-16
Inventor： David A. Haessig, Jr. , Amod V. Dandawate , David C. Donarski , Dale A. Rickard , Forrest C. Vatter
Abstract: An apparatus having an analog-to-digital converter with an increased effective resolution is disclosed. The apparatus includes a signal processing functional block and an analog-to-digital conversion block. The signal processing functional block includes a controller for providing a set of digital control signals according to a set of digital input signals received by the controller, a digital-to-analog converter for converting the digital control signals to a set of corresponding analog control signals, and a physical hardware unit for performing a specific function according to the analog control signals. The analog-to-digital conversion block includes an adder for adding a dither signal to an analog feedback signal originated from the physical hardware unit, an ADC for converting sums of dither signals and analog feedback signals to a set of oversampled digital control signals to be fed into the controller.
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公开(公告)号：US10422644B2
公开(公告)日：2019-09-24
申请号：US15808246
申请日：2017-11-09
Inventor： Richard E. Clymer , Jeffrey A. Paul , Dean C. Slocum
Abstract: A method for improving target location accuracy in direction finding systems is disclosed. A target search region is identified based on a set of received signals, and the target search region is projected onto the earth's surface. An initial search grid, which is smaller than the target search region, is placed within the target search region. Next, the initial search grid is expanded to a full search grid by using an optimum number of virtual grid points in order to cover the entire target search region. The correlation coefficients at the virtual grid points between the estimated phases of emitted signals and the estimated phases of the received signals are then calculated. A target is designated as being at a location associated with the highest correlation coefficient. At this point, a new travel path can be initiated to engage or avoid the target.
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公开(公告)号：US10374552B1
公开(公告)日：2019-08-06
申请号：US15952868
申请日：2018-04-13
Inventor： Douglas S. Jansen
IPC: H03D7/14 , H01L27/06 , H04B1/16 , H01L21/8249 , H01L29/737
Abstract: A mixer device is disclosed, which is fabricated as a bipolar-complementary metal oxide semiconductor (BiCMOS) integrated circuit device, to provide improved linearity and dynamic range, at higher operating frequencies. A mixer device configured according to an embodiment includes a driver circuit comprising bipolar junction transistors (BJTs) to convert a local oscillator signal to a high slew-rate gate drive signal. The driver circuit is configured as a quasi-complementary driver employing NPN BJTs. The mixer device further includes a mixer circuit comprising CMOS field-effect transistors (FETs) configured to mix an input signal with the gate drive signal to generate an output signal through the application of the gate drive signal to the gate port of the CMOS FETs. The mixer device further includes a voltage biasing circuit to provide a biased body voltage to the FETs to allow overdriving to a negative voltage relative to the body voltage.
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公开(公告)号：US10313164B2
公开(公告)日：2019-06-04
申请号：US15588256
申请日：2017-05-05
Inventor： Apurva N. Mody , Jack Chuang , Ronald Lawrence , Chad M. Spooner
Abstract: Techniques are provided for implementing a portable spectrum analyzer. An example system, according to an embodiment, includes a signal analyzer including an RF receiver to receive RF signals from an antenna, an analog-to-digital converter to generate a sampled signal based on the received RF signals, and a signal analysis co-processor to perform cognitive scanning analysis of the sampled signal. The cognitive scanning analysis includes detection, identification, and characterization of digital/analog signal(s) embedded in the sampled signal. The system may further include a communications interface circuit to provide communication between the signal analyzer and an associated mobile host platform (e.g., smartphone). The communication includes transmitting results of the cognitive scanning analysis to the mobile host and receiving parameters from the mobile host to control the operation of the cognitive scanning analysis. The signal analyzer and mobile host are coupled through a shared enclosure such as a hinged case, sleeve, or wallet.
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Patent Agency Ranking
公开(公告)号：US10277321B1
公开(公告)日：2019-04-30
申请号：US16122999
申请日：2018-09-06
Inventor： Robert T Carlson , Amod V Dandawate , David A Haessig, Jr. , Dale A Rickard
IPC: H04B10/112 , H04B10/118 , H04B10/50 , H04B10/69
Abstract: The Quad Cell permits measurement of four quadrant signal powers simultaneously, metrics which are equal when the laser spot is at the desired zero location, at the center of the cell, the origin of the cells' axes. A control action acts upon the Quad Cell signals to move the laser spot toward the origin of the axes bisecting the four quadrants of the cell, moving the laser spot to the origin to achieve a null in the difference between these four signal levels.
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公开(公告)号：US10274958B2
公开(公告)日：2019-04-30
申请号：US15365210
申请日：2016-11-30
Inventor： Stephen P. DelMarco , Victor T. Tom
IPC: G05D1/02 , G06T7/30 , G06T7/70 , G01C21/00 , G05D1/10 , G06F16/51 , G06T7/32 , B64C39/02 , G06K9/52 , G06F16/583
Abstract: A method for vision-aided navigation which utilizes an image registration system to update a navigation control system. One exemplary feature of the method includes the use of Enhanced Phase Correlation techniques to create a reference imagery database and register images against the created database. The method may be operated on a non-transitory computer-readable medium storing a plurality of instructions which when executed by one or more processors causes the one or more processors to perform the method for vision-aided navigation which utilizes an image registration system to update a navigation control system.
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公开(公告)号：US10241292B2
公开(公告)日：2019-03-26
申请号：US15374475
申请日：2016-12-09
Inventor： Philip R Staver
Abstract: A zoom lens having unpowered optical elements changeably inserted between conventional powered optical zoom elements enables ultra-fast and mechanically stable stepped changes in zoom state.
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公开(公告)号：US10213136B2
公开(公告)日：2019-02-26
申请号：US14865677
申请日：2015-09-25
Inventor： Yu Zhong
Abstract: A method for invariant gait analysis using gyroscope data wherein the improvement comprises the step of using pairs of raw measurements to factor out orientation, wherein a motion representation which is both invariant to sensor orientation changes and highly discriminative to enable high-performance gait analysis.
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公开(公告)号：US20190058499A1
公开(公告)日：2019-02-21
申请号：US15677528
申请日：2017-08-15
Inventor： Curtis M. Grens
Abstract: Anti-jamming techniques are provided for RF receivers, such as those that operate in hostile environments. In some embodiments, the techniques are embodied in an anti-jam communications system configured with automatic gain control (AGC) that is complementary. The system includes a first AGC circuit prior to an interference suppression circuit and a second AGC circuit after the interference suppression circuit. The first AGC circuit operates to adjust the power level presented to the interference suppression circuit to facilitate interference cancellation. The second AGC circuit operates to maintain the original power level of the desired communications signal and prevent amplitude errors as the first AGC circuit responds to fluctuations in jammer signal power. The second AGC can be slaved to the first AGC circuit such that the sum of two gain values is held constant, according to some embodiments. In this manner, the first and second AGC circuits provide a complementary-AGC system.
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