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371.
公开(公告)号:US11243418B2
公开(公告)日:2022-02-08
申请号:US16542676
申请日:2019-08-16
Inventor: John E. McGeehan
IPC: G02F1/03
Abstract: An RF frequency tuning-in-silicon photoconductive-switch-based high power microwave system including a cradle; a transmission line proximate the cradle; a photosensitive silicon material switch component also proximate the cradle; a laser light source having a varied illumination incidence location on the photosensitive material; and a laser alignment component providing the location of the illumination incidence location on the photosensitive material; whereby the inductance of the switch varies as a function of the incidence location of the illumination on the photosensitive material.
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公开(公告)号:US11221792B1
公开(公告)日:2022-01-11
申请号:US17069757
申请日:2020-10-13
Inventor: Michael A. Zalucki
IPC: G06F3/06
Abstract: A storage system is configured to facilitate memory operations with the memory that avoid the need for defragmentation. The system includes one or more memory devices and a memory interface operatively coupled with the one or more memory devices. The memory interface includes a start page module that provides a start page table having a page number that includes a first part of a corresponding dataset. A link page module of the memory interface provides a link page table that indicates an address for a current page of a given dataset and an address for a next page of the given dataset. Write/read page modules of the memory interface provide write/read page tables that include sub-addresses of a page where a portion of a corresponding dataset is being written/read. The memory interface executes data read, write, and erase operations that are tracked using the tables provided by the various modules.
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公开(公告)号:US11187523B1
公开(公告)日:2021-11-30
申请号:US16885739
申请日:2020-05-28
Inventor: Michael J. DeWeert , Eric M. Louchard , Reid A. Noguchi , Dugan C. Yoon
Abstract: Systems and methods for three-dimensional (3D) shape estimation of objects embedded in light-scattering media via polarimetry are provided. The systems and methods utilize polarization to exploit forward scattering in the light-scattering medium to mitigate backscatter interference (BSI).
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公开(公告)号:US11177852B1
公开(公告)日:2021-11-16
申请号:US17027901
申请日:2020-09-22
Inventor: Michael A. Zalucki
Abstract: Techniques are provided for tracking of signals. A methodology implementing the techniques according to an embodiment includes filtering a first segment of an input signal, associated with a first time interval, into a first plurality of frequency bins. The method also includes detecting a signal of interest (SOI) in one of the first plurality of frequency bins. The method further includes filtering a second segment of the input signal, associated with a second time interval, into a second plurality of frequency bins. The method further includes determining movement of the SOI from a first frequency bin, of the first plurality of frequency bins, to a second frequency bin, of the second plurality of frequency bins. The method further includes tracking the SOI based on the movement determination. In some cases, the method further includes creating a composite signal based on the tracking over multiple frequency bins and multiple time intervals.
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公开(公告)号:US11165457B1
公开(公告)日:2021-11-02
申请号:US16992473
申请日:2020-08-13
Inventor: Randall T. Enderby
IPC: H04B1/26
Abstract: Techniques are provided for tuning over a broad radio frequency (RF) bandwidth. A tuner implementing the techniques according to an embodiment includes an input module compromising a single-conversion superheterodyne receiver to convert a first RF signal to a processed RF signal by frequency translating from a first frequency range to a lower second frequency range. The input module is also configured to receive a second RF signal occupying the second frequency range and provide the second RF signal as a pass-through RF signal. The tuner also includes a down-conversion module to convert the processed RF signal to a first intermediate frequency (IF) signal by frequency translating the processed RF signal from the second frequency range to a lower third frequency range, and to convert the pass-through RF signal to a second IF signal by frequency translating the pass-through RF signal from the second frequency range to the third frequency range.
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公开(公告)号:US11165213B2
公开(公告)日:2021-11-02
申请号:US16448878
申请日:2019-06-21
Inventor: Philip R. Staver
Abstract: An optical system including a first lens element having an optical center, a second lens element having an optical center spaced apart from the first lens element and oriented such that a beam passing through the optical center of said first lens element will also pass straight the optical center of the second lens element, the beam defining an optical path; and
at least one planar, optical slab configured to be movable between at least two positions, a first position wherein at least a portion of a planar surface of the optical slab is disposed between the first and second lens elements such that a beam transmitted therethrough also passes through the planar, optical slab and a second position wherein the planar, optical slab is fully outside of the optical path created by the first and second lens elements.-
公开(公告)号:US20210325526A1
公开(公告)日:2021-10-21
申请号:US16849222
申请日:2020-04-15
Inventor: Michael R. McInnis , Daniel B. Harrison , Jeffrey A. Reuter , Michael F. Roske
IPC: G01S13/68 , G01S5/12 , G01S13/933
Abstract: A method for automatically correlating radio wave pulses includes deterring a first normalized phase shift that corresponds to a first radio wave pulse. The method further includes determining a second normalized phase shift that corresponds to a second radio wave pulse. The method further includes determining the first normalized first normalized phase shift is equal to the second normalized phase shift. The method further includes in response to determining the first normalized phase shift is equal to the second normalized phase shift, correlating the first radio wave pulse and the second radio wave pulse as originating from a same radio wave transmitter. The method further includes transmitting a signal indicative of the first radio wave pulse and the second radio wave pulse as originating from the same radio wave transmitter through a circuit
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公开(公告)号:US11136100B2
公开(公告)日:2021-10-05
申请号:US16671755
申请日:2019-11-01
Inventor: Robert J. Nation , Charles P. Wason, Jr.
Abstract: An inflatable mast couplable to an underwater vehicle includes a flexible material defining an interior volume, a head structure, and a spring coupled to at least one of the flexible material and the head structure. The flexible material is designed to be filled with air to form an inflated mast structure that extends away from the underwater vehicle. The head structure is disposed at a distal end of the inflated mast structure and in some cases has a rigid shape that forms a panel having an outer surface that is flush with an outer surface of the underwater vehicle, when the mast structure is deflated and stowed. The spring is designed to provide a tensile force on at least one of the flexible material and the head structure when the flexible material is inflated to form the mast structure. A system includes the inflatable mast and a pump.
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公开(公告)号:US20210279620A1
公开(公告)日:2021-09-09
申请号:US16726532
申请日:2019-12-24
Inventor: Ronald James Frank
Abstract: A method and system is disclosed for determining a probability that an encountered platform was of a specific type given that a plurality of emitters exist on the platform and each emitter has a computed probability that it is of each of a set of types. A preprocessing stage operates on a description of the environment and determines the probability of a set of events that are independent of any observation. A runtime processing stage uses the terms computed in the preprocessing stage along with data assembled from a set of observations to determine the conditional probability that a particular platform type was the type encountered.
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公开(公告)号:US20210278680A1
公开(公告)日:2021-09-09
申请号:US16808509
申请日:2020-03-04
Inventor: Philip R. Staver
Abstract: Techniques, systems, architectures, and methods for modulating the focal spot and/or divergence of a laser beam comprising the use of a collimated light source, a lens assembly disposed within an optical path corresponding to light emanating from the collimated light source wherein the lens assembly comprises two pairs of cross cylinder lenses having equal and opposite focal powers oriented with their neutral axes positioned orthogonally to each other; and a focusing objective lens assembly disposed within the optical path following the lens assembly, wherein each of the two pairs of cross cylinder lenses are configured for rotation about an axis defined by the point at which light from the collimated light source impinges on each of them.
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