Systems and methods for detecting events that are sparse in time

    公开(公告)号:US10673457B2

    公开(公告)日:2020-06-02

    申请号:US15090533

    申请日:2016-04-04

    IPC分类号: H03M7/30

    摘要: Under one aspect, a method is provided for detecting events that are sparse in time. The method can include (a) receiving N analog input signals that are continuous and are independent from one another, wherein each one of the events causes a change in a corresponding one of the analog input signals, and N is 2 or greater. The method also can include (b) by a first analog circuit, for each of the N analog input signals, outputting products of that analog input signal and a plurality of gain factors. The method also can include (c) by a second analog circuit, outputting M sums of the products, wherein M is 2 or greater and is less than or equal to N. The method also can include (d) detecting a first one of the events based on the M sums of the products.

    ENERGY EXTRACTION AND STORAGE, AND PROPULSION SYSTEMS FOR SPACE VEHICLES

    公开(公告)号:US20200024002A1

    公开(公告)日:2020-01-23

    申请号:US16038142

    申请日:2018-07-17

    发明人: Evan R. ULRICH

    IPC分类号: B64G1/40 B64G1/26

    摘要: A space vehicle may extract and store energy, and also include a propulsion system. The space vehicle includes one or more wings connected to a body of the apparatus. Each of the one or more wings includes a propellant system configured to eject mass away from the apparatus, the ejection of the mass causes the apparatus to move from a first position to a second position.

    THERMO-MECHANICAL MAGNETIC COUPLER
    35.
    发明申请

    公开(公告)号:US20190385774A1

    公开(公告)日:2019-12-19

    申请号:US16011643

    申请日:2018-06-19

    摘要: An electromagnetic mooring system (MMS) that includes a first object and a second object, at least one of which includes an electronic coupler configured to connect the first object with the second object. The electronic coupler comprises a pair of magnets, at least one of which is an electro permanent magnet (EPM), having a flux path. When the electronic coupler is in the ON states, the flux path moves towards the first or second object transferring heat from the first or second object to the second or first object, and when the electronic coupler is in the OFF state, the flux paths moves towards the EPM.

    Systems and methods for multi-objective optimizations with decision variable perturbations

    公开(公告)号:US10474953B2

    公开(公告)日:2019-11-12

    申请号:US15268840

    申请日:2016-09-19

    IPC分类号: G06N3/12

    摘要: Systems and methods are provided for providing an optimized solution to a multi-objective problem. Potential solutions may be generated from parent solutions to be evaluated according to multiple objectives of the multi-objective problem. If the potential solutions are infeasible, the potential solutions may be perturbed according to a perturbation model to bring the potential solution to feasibility, or at least a reduced level of constraints. The perturbation models may include a weight vector that indicates the amount of perturbation, such as in a forward and/or reverse direction, of decision variables of the potential solutions. In some cases, the perturbation models may be predetermined. In other cases, the perturbation models may be learned, such as based on training constraint data. Additionally, potential solutions may be generated in a secondary optimization where a constraint based optimization may be performed to drive to generating a feasible solution for further evaluation according to objective values.

    Automobile accident mitigation technique

    公开(公告)号:US10416304B2

    公开(公告)日:2019-09-17

    申请号:US15450968

    申请日:2017-03-06

    发明人: Henry Helvajian

    IPC分类号: G01S13/93 G01S13/60

    摘要: A system for reducing accidents caused by distracted drivers. The system may form an invisible track using material-impregnated grooves and a radar beam, preventing a vehicle from veering away from a road lane. The material-impregnated grooves (MIGs) within one or more road lanes may include scrap metal. The radar beam may be emitted from a transceiver mounted underneath the vehicle such that backscatter from the MIGs is returned to the transceiver.

    Vehicle attitude control using movable mass

    公开(公告)号:US10414518B2

    公开(公告)日:2019-09-17

    申请号:US15344636

    申请日:2016-11-07

    摘要: Attitude of a vehicle may be controlled using movable mass. The movable mass may move inside a vehicle or its outline, outside of the vehicle or its outline, inside-to-outside and/or outside-to-inside of the vehicle or its outline, or any combination thereof. The movable mass may be a solid, liquid, and/or gas. When the center-of-mass of the vehicle is moved relative to the line-of-action of applied forces such as thrust, drag, or lift, a torque can be generated for attitude control or for other purposes as a matter of design choice. In the case of external movable masses that extend from the vehicle or its outline, when operating in endoatmospheric flight, or general travel through a fluid, aerodynamic forces from the atmosphere or general fluid forces may further be leveraged to control the attitude of the vehicle (e.g., aerodynamic flaps).

    Systems and methods for monitoring temperature using acoustic waves during processing of a material

    公开(公告)号:US10413969B2

    公开(公告)日:2019-09-17

    申请号:US16206940

    申请日:2018-11-30

    摘要: Under one aspect, a method of processing a material includes heating a region of the material with a first energy source; exciting an acoustic wave in the material; and transmitting the acoustic wave through the heated region, the heated region changing at least one property of the acoustic wave. The method also can include detecting the change in at least one property of the acoustic wave; characterizing a temperature of the material in the heated region based on the detected change in at least one property of the acoustic wave; and comparing the characterized temperature of the material in the heated region to a threshold. The method further can include, based on the characterized temperature of the material in the heated region being less than the threshold or being above the threshold for an insufficient amount of time, modifying a property of the heated region with a second energy source.

    Systems and methods for multi-objective heuristics with conditional genes

    公开(公告)号:US10402728B2

    公开(公告)日:2019-09-03

    申请号:US15094521

    申请日:2016-04-08

    IPC分类号: G06N3/12 G06N99/00

    摘要: Systems and methods are provided to engage in multi-objective optimization where there may be potential solutions for evaluation (e.g., chromosomes) that each have one or more conditional genes. The value of each of the conditional genes in each of the chromosomes may be equivalent to one of a plurality of hidden genes in each of the chromosomes. The value of each of the conditional genes may be evaluated prior to determining objective values of each of the chromosomes. The objective values of each of the chromosomes may be used to evaluate the potential solutions embodied in the chromosomes and further drive to more optimized solutions. The use of the conditional genes in the chromosomes may reduce the amount of constraint violation checks that may need to be performed.