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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
Applicant: Raytheon BBN Technologies Corp.
Inventor: Daniel Alan Gregory , Prithwish Basu , Zachary Ratliff , Siddharth Pal , Kimberly Gavin , Benjamin Montgomery , Joud Khoury
Abstract: 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:US08919702B2
公开(公告)日:2014-12-30
申请号:US13929248
申请日:2013-06-27
Applicant: Raytheon BBN Technologies Corp.
Inventor: Daniel Alan Gregory , John-Francis Mergen
Abstract: The systems and methods of the invention modulate atmospheric gases to temporarily increase the amount of atmospheric particles in the path of the debris, in order to decelerate the debris and accelerate natural orbital decay to the point of atmospheric re-entry. In one aspect of the invention, clearing the space debris includes propelling a plume of atmospheric gases substantially orthogonal to the path of the debris such that the debris collides with the gaseous plume as it passes through the plume. Increased atmospheric drag from the gaseous particles of the plume in the path of the debris obstructs a forward propagation of the debris and gradually decelerates the debris, leading eventually to atmospheric recapture. Embodiments of the invention can be employed in any number of applications, including without limitation, clearing debris in the low-earth orbit (LEO) which is particularly susceptible to debris build-up, de-orbiting non-refuse payloads front orbits, and clearing debris from geosynchronous orbits.
Abstract translation: 本发明的系统和方法调节大气气体以暂时增加碎片路径中的大气颗粒的量,以便使碎片减速并加速天然轨道衰减到大气再入口点。 在本发明的一个方面,清理空间碎片包括推动基本上垂直于碎片路径的大气气体的羽流,使得碎片在气流穿过羽流时与气体羽流碰撞。 来自碎片路径中的羽流的气体颗粒的大气阻力增加阻碍了碎片的向前传播,并使碎片逐渐减速,最终导致大气再捕获。 本发明的实施例可以用于任何数量的应用,包括但不限于清除低地球轨道(LEO)中的碎屑,这些碎片特别易于碎片堆积,非轨道上的非垃圾载荷前沿轨道和清除 来自地球同步轨道的碎片。
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公开(公告)号:US20130306799A1
公开(公告)日:2013-11-21
申请号:US13929248
申请日:2013-06-27
Applicant: Raytheon BBN Technologies Corp.
Inventor: Daniel Alan Gregory , John-Francis Mergen
IPC: B64G1/24
Abstract: The systems and methods of the invention modulate atmospheric gases to temporarily increase the amount of atmospheric particles in the path of the debris, in order to decelerate the debris and accelerate natural orbital decay to the point of atmospheric re-entry. In one aspect of the invention, clearing the space debris includes propelling a plume of atmospheric gases substantially orthogonal to the path of the debris such that the debris collides with the gaseous plume as it passes through the plume. Increased atmospheric drag from the gaseous particles of the plume in the path of the debris obstructs a forward propagation of the debris and gradually decelerates the debris, leading eventually to atmospheric recapture. Embodiments of the invention can be employed in any number of applications, including without limitation, clearing debris in the low-earth orbit (LEO) which is particularly susceptible to debris build-up, de-orbiting non-refuse payloads front orbits, and clearing debris from geosynchronous orbits.
Abstract translation: 本发明的系统和方法调节大气气体以暂时增加碎片路径中的大气颗粒的量,以便使碎片减速并加速天然轨道衰减到大气再入口点。 在本发明的一个方面,清理空间碎片包括推动基本上垂直于碎片路径的大气气体的羽流,使得碎片在气流穿过羽流时与气体羽流碰撞。 来自碎片路径中的羽流的气体颗粒的大气阻力增加阻碍了碎片的向前传播,并使碎片逐渐减速,最终导致大气再捕获。 本发明的实施例可以用于任何数量的应用,包括但不限于清除低地球轨道(LEO)中的碎屑,这些碎片特别易于碎片堆积,非轨道上的非垃圾载荷前沿轨道和清除 来自地球同步轨道的碎片。
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公开(公告)号:US20160004271A1
公开(公告)日:2016-01-07
申请号:US14321658
申请日:2014-07-01
Applicant: Raytheon BBN Technologies, Corp.
Inventor: Daniel Alan Gregory , John-Francis Mergen
CPC classification number: B60W20/10 , B60K2026/023 , B60W50/10 , B60W50/16 , B60W2540/10 , B60W2540/103 , G05G1/44 , G05G5/03
Abstract: An accelerator pedal assembly is disclosed. The accelerator pedal assembly can include a pedal configured to be movable by a vehicle operator to control a speed of a vehicle. In addition, the accelerator pedal assembly can include an electromagnetic resistance mechanism coupled to the pedal. The electromagnetic resistance mechanism can be configured to provide a force to resist movement of the pedal by the operator to indicate an operational condition of the vehicle to the operator.
Abstract translation: 公开了一种加速器踏板组件。 加速器踏板组件可以包括被构造成可由车辆操作者移动以控制车辆的速度的踏板。 此外,加速器踏板组件可以包括联接到踏板的电磁阻力机构。 电磁阻力机构可以被构造成提供力以阻止操作者对踏板的移动,以向操作者指示车辆的操作状态。
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公开(公告)号:US20220037035A1
公开(公告)日:2022-02-03
申请号:US17364044
申请日:2021-06-30
Applicant: Raytheon BBN Technologies Corp.
Inventor: Daniel Alan Gregory , Prithwish Basu , Zachary Ratliff , Siddharth Pal , Kimberly Gavin , Benjamin Montgomery , Joud Khoury
Abstract: Techniques for geospatial-temporal pathogen tracing include: obtaining, from multiple mobile devices in association with a first time, first contact tracing data including at least first geospatial traffic data and first values of a set of attributes associated with a pathogen; obtaining, from the multiple mobile devices in association with a second time, second contact tracing data including at least second geospatial traffic data and second values of the set of attributes associated with the pathogen; and applying at least the first contact tracing data and the second contact tracing data to a machine learning model, to obtain actionable intelligence associated with the pathogen.
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