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公开(公告)号：US20220271792A1
公开(公告)日：2022-08-25
申请号：US17668893
申请日：2022-02-10
Applicant: Raytheon BBN Technologies Corp.
Inventor： Michael Brandon Kremer , Andrew C. Marcum
Abstract: An adaptive modulation, coding and spreading (AMCS) transmitter is configured to map modulation symbols to a plurality of OFDM subcarriers to generate symbol-modulated subcarriers. For AMCS, some of the modulation symbols may be mapped to individual subcarriers (e.g., similar to conventional OFDM) and one or more of the modulation symbols may be mapped to (i.e., spread across) more than one of the subcarriers (i.e., unlike conventional OFDM) based on a spreading ratio. An IFFT may be performed on the symbol-modulated subcarriers prior to transmission. AMCS allows for adaptation to lower capacity and/or frequency-selective channels by optionally spreading existing modulations over multiple carriers and/or time slots. AMCS expands the catalog for possible modulations/codings by splitting a symbol across multiple carriers and/or time slots. AMCS is particularly useful when channel conditions are highly frequency-dependent or uniformly low capacity
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公开(公告)号：US20220228226A1
公开(公告)日：2022-07-21
申请号：US17576970
申请日：2022-01-16
Inventor： Jordan Seville , Darby McChesney , Jiangshan Wang , Murali Kannan Maruthamuthu , Andres Dextre , Ana Pascual-Garrigos , Suraj Mohan , Mohit Verma
IPC: C12Q1/6888 , C12Q1/70 , C12Q1/6806
Abstract: The present disclosure is drawn to methods of preparing a saliva sample for loop-mediated isothermal amplification (LAMP) detection of a pathogen target. In some embodiments, such methods can include providing an amount of saliva from a test subject, and diluting the saliva in water to a degree that reduces a buffering capacity of the saliva while maintaining a sufficient concentration to allow for detection of the pathogen target.
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公开(公告)号：US20220228205A1
公开(公告)日：2022-07-21
申请号：US17576972
申请日：2022-01-16
Inventor： Jordan Seville , Darby McChesney , Jiangshan Wang , Murali Kannan Maruthamuthu , Andres Dextre , Mohit Verma
IPC: C12Q1/6844 , G01N21/80 , C12Q1/6888
Abstract: The present disclosure is drawn to compositions and methods for loop-mediated isothermal amplification (LAMP) analysis utilizing a pH-dependent output signal. The composition can comprise a pH sensitive dye, and a plurality of non-interfering LAMP reagents. The method can comprise providing an assembly of a solid phase medium and a composition, depositing a biological sample onto the solid phase medium, and heating the assembly to an isothermal temperature sufficient to facilitate a LAMP reaction.
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公开(公告)号：US20220223780A1
公开(公告)日：2022-07-14
申请号：US17147387
申请日：2021-01-12
Applicant: RAYTHEON BBN TECHNOLOGIES CORP.
Inventor： Kin Chung Fong
Abstract: A tunable oscillator including a Josephson junction. In some embodiments, the tunable oscillator includes a first superconducting terminal, a second superconducting terminal, a graphene channel including a portion of a graphene sheet, and a conductive gate. The first superconducting terminal, the second superconducting terminal, and the graphene channel together may form a Josephson junction having an oscillation frequency, and the conductive gate may be configured, upon application of a voltage across the conductive gate and the graphene channel, to modify the oscillation frequency.
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公开(公告)号：US20220201486A1
公开(公告)日：2022-06-23
申请号：US17537775
申请日：2021-11-30
Applicant: Raytheon BBN Technologies Corp.
Inventor： Colin Fumito Funai , Laura Jane Poplawski Ma
IPC: H04W12/088 , H04W12/02 , H04B7/155 , H04W12/06 , H04W72/08
Abstract: Embodiments of a radio-frequency (RF) repeater configured for semantic-less retransmissions are described herein. The RF repeater performs physical (PHY) layer processing to identify one or more PHY layer features of a received RF signal. The RF repeater may determine whether or not to retransmit the received RF signal based on the one or more PHY features. The determination to retransmit the received RF signal may be based solely on PHY parameters enabling semantic-less retransmissions.
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Patent Agency Ranking
公开(公告)号：US20220200029A1
公开(公告)日：2022-06-23
申请号：US17558519
申请日：2021-12-21
Applicant: Raytheon BBN Technologies, Corp.
Inventor： Benjamin Jacob Rosenthal , Miles Rogers , Helen Scott
IPC: H01M8/0612 , H01M8/0662 , C01B17/04 , C25B1/04 , C01B17/50 , B63G8/00
Abstract: A method of generating electricity in a body of water includes providing a colony of sulfur-reducing bacteria, a colony of sulfur-oxidizing bacteria, and a colony of denitrifying bacteria submerged in the body of water. The colony of sulfur-reducing bacteria can be used to convert at least a portion of sulfates present in the body of water to hydrogen sulfide. The colony of sulfur-oxidizing bacteria can be used to convert the hydrogen sulfide to sulfuric acid, which can react with manganese to produce hydrogen gas. The colony of denitrifying bacteria can be used to convert at least a portion of nitrogen oxides in the body of water to nitrogen gas, which can be bubbled through a portion of water from the body of water to remove dissolved oxygen gas. The hydrogen gas and oxygen gas can be combined in a fuel cell generator to generate electricity.
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公开(公告)号：US20220191413A1
公开(公告)日：2022-06-16
申请号：US17552201
申请日：2021-12-15
Applicant: Raytheon BBN Technologies, Corp.
Inventor： Scott Ritter
Abstract: A technology is described for pixel frequency filtering for event cameras. An example of the technology can include receiving events representative of changes in brightness detected by a pixel in a pixel array included in the event camera, tracking a number of event sign transitions that occur within a defined time window, determining that the number of event transitions corresponds to an event transition frequency, and allowing the events generated by the pixel to be output from the event camera.
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公开(公告)号：US11316553B2
公开(公告)日：2022-04-26
申请号：US16833356
申请日：2020-03-27
Applicant: Raytheon BBN Technologies, Corp.
Inventor： Thomas Gilbert Roden, III , John-Francis Mergen , Christopher Michael Wilder , David Brian Miller, Jr.
IPC: H04B1/7073 , H04L7/033
Abstract: An RF clocked device can include a signal processor operable to receive an RF signal having an RF signal frequency and output a clock signal having a clock frequency based on the RF signal frequency. The RF clocked device can also include a clock operable to receive, and operate, using the clock signal. The clock can output at least one of a time and a date. In addition, a clock system can include an RF clocked device. The RF clocked device can include a signal processor operable to receive an RF signal having an RF signal frequency and output a clock signal having a clock frequency based on the RF signal frequency. The RF clocked device can also include a clock operable to receive, and operate, using the clock signal. The clock can output at least one of a time and a date. The clock system can also include a client device operable to receive timing information from the RF clocked device.
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公开(公告)号：US20220093841A1
公开(公告)日：2022-03-24
申请号：US17094694
申请日：2020-11-10
Applicant: RAYTHEON BBN TECHNOLOGIES CORP.
Inventor： Graham Earle Rowlands , Thomas Akira Ohki , Guilhem Jean Antoine Ribeill , Minh-Hai Nguyen
Abstract: A reservoir computer. In some embodiments, the reservoir computer includes a series array of Josephson junctions, a coupling impedance, and a readout circuit. In some embodiments, the series array of Josephson junctions includes a plurality of Josephson junctions, connected in series; the coupling impedance is connected in parallel with the series array of Josephson junctions; and the readout circuit is connected to at least three nodes of the series array of Josephson junctions.
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公开(公告)号：US20210365585A1
公开(公告)日：2021-11-25
申请号：US17326498
申请日：2021-05-21
Applicant: Raytheon BBN Technologies Corp.
Inventor： Zachary Ratliff , Joud Khoury
Abstract: Techniques for privacy-preserving contact tracing are disclosed, including: generating, by a first user device, a first proximity token for contact tracing; receiving, by the first user device, a second proximity token from a second user device; generating, by the first user device, a hash based on the first proximity token and the second proximity token; generating, by the first user device using a prover function of a preprocessing zero knowledge succinct non-interactive argument of knowledge (pp-zk-SNARK), a cryptographic proof attesting that an individual associated with the first user device tested positive for a pathogen; and transmitting, by the first user device, publicly verifiable exposure data including at least the cryptographic proof and the hash to a public registry.
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