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公开(公告)号：US20220373632A1
公开(公告)日：2022-11-24
申请号：US17881341
申请日：2022-08-04
发明人： Jameson John Collins
摘要： An acoustic vector sensor and a method of detecting an acoustic vector are described. An object suspended in the fluid medium by a non-contact support structure. The object and the non-contact support structure are configured so that the object moves in response to any disturbance of the fluid by an acoustic wave; The non-contact support structure of the object comprises a plurality of solenoids that each produce a magnetic field in a fluid medium. A measurement measures movement of the object. A processing device determines an acoustic intensity vector of the acoustic wave based on the measured movement of the object.
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公开(公告)号：US20220294452A1
公开(公告)日：2022-09-15
申请号：US17574429
申请日：2022-01-12
发明人： Andrew Phillips Wagner , Minh-Hai Nguyen , Graham Earle Rowlands , Guilhem Jean Antoine Ribeill
IPC分类号： H03K19/17736 , G09B23/18 , H03K19/195
摘要： An analog hashing system and method includes: an input port for accepting an input signal; a chaotic circuit including non-linear components and multiple chaotic attractors for generating an unpredictable output responsive to the input signal; a differential output port coupled to the chaotic circuit for producing an analog differential signal from the unpredictable output; and a clock circuit for producing a binary output, as a hash function, generated by the sign of the analog output in every clock cycle.
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公开(公告)号：US20220209801A1
公开(公告)日：2022-06-30
申请号：US17696590
申请日：2022-03-16
发明人： Neil Judell
摘要： A receiver for cancelling strong signals from combined weak and strong signals includes: a first circuitry for inputting a weak and strong signal as an input; a parametric cancellation circuit for inputting a representation of the strong signal and an output of the first circuitry to produce a cancellation signal; a second circuitry electrically coupled to the parametric cancellation circuit for inputting the cancellation signal to produce a modulated output; a demodulator electronically coupled to the second circuitry for demodulating the modulated output to produce a demodulated output and an error signal, where the demodulated output is the data contained in the weak signal; and an adaptation logic circuit for inputting the representation of the strong signal, the demodulated output and the error signal to adaptively produce parameters for the parametric cancellation circuit. The parametric cancellation circuit further inputs the error signal and the parameters to produce the cancellation signal.
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公开(公告)号：US11340512B2
公开(公告)日：2022-05-24
申请号：US16859454
申请日：2020-04-27
发明人： Moe Soltani , Jeffrey Laroche , Thomas Kazior
摘要： An electro-optical modulator assembly including a transistor including a gate, a drain, and a source disposed on a substrate, a photonic modulator including a first waveguide structure positioned between a first electrode and a second electrode, the photonic modulator being integrated with the transistor on the substrate, and a metal connection coupled between the drain of the transistor and one of the first and second electrodes of the photonic modulator.
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公开(公告)号：US20220146864A1
公开(公告)日：2022-05-12
申请号：US17648461
申请日：2022-01-20
摘要： Photonic devices having a photonic waveguiding layer, and a cladding layer, disposed on the photonic waveguiding layer, and where the cladding section is a material comprising Scandium. The cladding layer may include a material comprising Al1-xScxN material where 0
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公开(公告)号：US11262604B2
公开(公告)日：2022-03-01
申请号：US16227846
申请日：2018-12-20
摘要： Photonic devices having Al1-xScxN and AlyGa1-yN materials, where Al is Aluminum, Sc is Scandium, Ga is Gallium, and N is Nitrogen and where 0
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公开(公告)号：US20220038182A1
公开(公告)日：2022-02-03
申请号：US17374834
申请日：2021-07-13
发明人： Scott Ritter
IPC分类号： H04B10/2587 , H04B10/112 , H04B10/516
摘要： A technology is described for optical communication. An example of the technology can include receiving an event stream containing indications of independent events detected by pixels in an event camera. An event may be a change in brightness detected by a pixel in the pixel array, and the pixel independently generates an indication of the event in response to detecting the event. The event stream can be demultiplexed into a plurality of communication streams containing related events associated with a plurality of communication sources. The events contained in a communication stream can be aggregated based in part on an event proximity and an event time that associates an event with other events contained in the event stream. The plurality of communication streams can be demodulated to extract optically transmitted information from the plurality of communication streams, which can be sent to a data consumer.
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公开(公告)号：US20220006635A1
公开(公告)日：2022-01-06
申请号：US17364048
申请日：2021-06-30
发明人： Daniel Alan Gregory , Prithwish Basu , Zachary Ratliff , Siddharth Pal , Kimberly Gavin , Benjamin Montgomery , Joud Khoury
摘要： Techniques for geospatial-temporal pathogen tracing in zero knowledge include: 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; transmitting, by the first user device, first publicly verifiable exposure data including at least the cryptographic proof and the hash to a public registry; and applying at least the first publicly verifiable exposure data and second publicly verifiable exposure data to a machine learning model, to obtain actionable intelligence associated with the pathogen.
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公开(公告)号：US20210333681A1
公开(公告)日：2021-10-28
申请号：US16859454
申请日：2020-04-27
发明人： Moe Soltani , Jeffrey Laroche , Thomas Kazior
摘要： An electro-optical modulator assembly including a transistor including a gate, a drain, and a source disposed on a substrate, a photonic modulator including a first waveguide structure positioned between a first electrode and a second electrode, the photonic modulator being integrated with the transistor on the substrate, and a metal connection coupled between the drain of the transistor and one of the first and second electrodes of the photonic modulator.
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公开(公告)号：US11156502B2
公开(公告)日：2021-10-26
申请号：US16826110
申请日：2020-03-20
发明人： Kin Chung Fong , Leonardo Ranzani
摘要： A system for detecting microwave power. In some embodiments, the system includes: a first resonator including a graphene-insulating-superconducting junction; a probe signal source, coupled to the first resonator; and a probe signal analyzer. The probe signal analyzer is configured: to measure a change in amplitude or phase of a probe signal received by the probe signal analyzer from the probe signal source, and to infer, from the change in amplitude or phase, a change in microwave power received by the graphene-insulating-superconducting junction.
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