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11.发明申请
公开(公告)号：WO2019222464A1
公开(公告)日：2019-11-21
申请号：PCT/US2019/032611
申请日：2019-05-16
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY , MCCLUNG, Holly , HOYT, Reed, Wasson , CANDELL, Lawrence, M. , MAHAN, Joseph, M. , SHAW, Gary, A. , SIEGEL, Andrew, M , STANDLEY, Robert, Linton , THOMPSON, Kyle
Inventor： MCCLUNG, Holly , HOYT, Reed, Wasson , CANDELL, Lawrence, M. , MAHAN, Joseph, M. , SHAW, Gary, A. , SIEGEL, Andrew, M , STANDLEY, Robert, Linton , THOMPSON, Kyle
Abstract: A conventional flow tube for a metabolic cart is usually a straight length of pipe whose inner diameter is fixed by the respiratory burden imposed by the flow tube on the user, with a smaller diameter imposing a higher respiratory burden. The ratio of the straight flow tube's length to diameter is fixed by fluid dynamics, so increasing the flow tube's diameter causes the flow tube's length to increase. As the flow tube gets longer, it exerts more torque on the user's neck and jaw, creating discomfort. Reducing the flow tube's length causes an undesired increase in the respiratory burden but increasing the flow tube's diameter to reduce the respiratory burden makes the flow tube less comfortable, making the flow tube unconformable, hard to breathe through, or both. Bending the flow tube, e.g., in an L shape, makes it possible to increase the flow tube's propagation length without increasing the flow tube's lever arm length.
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12.发明申请
公开(公告)号：WO2019164638A3
公开(公告)日：2019-08-29
申请号：PCT/US2019/015511
申请日：2019-01-29
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY , IBRAHIM, Mohamed , FOY, Christopher , KIM, Donggyu , ENGLUND, Dirk, Robert , HAN, Ruonan
Inventor： IBRAHIM, Mohamed , FOY, Christopher , KIM, Donggyu , ENGLUND, Dirk, Robert , HAN, Ruonan
IPC: G01V3/165
Abstract: The Zeeman shift of electronic spins in nitrogen-vacancy (NV) centers in diamond has been exploited in lab-scale instruments for ultra-high-resolution, vector-based magnetic sensing. A quantum magnetometer in CMOS utilizing a diamond-nanocrystal layer with NVs or NV-doped bulk diamond on a chip-integrated system provides vector-based magnetic sensing in a compact package. The system performs two functions for the quantum magnetometry: (1) strong generation and efficient delivery of microwave for quantum-state control and (2) optical filtering/detection of spin-dependent fluorescence for quantum-state readout. The microwave delivery can be accomplished with a loop inductor or array of wires integrated into the chip below the nanodiamond layer or diamond. And the wire array can also suppress excitation light using a combination of plasm onic and (optionally) Talbot effects.
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公开(公告)号：WO2019018093A3
公开(公告)日：2019-01-24
申请号：PCT/US2018/038274
申请日：2018-06-19
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： FU, Liang , SKINNER, Brian J.
Abstract: A thermoelectric device includes a thermoelectrode characterized by a band gap less than k B T , where k B is the Boltzmann constant and T is a temperature of the thermoelectrode. The device also includes a magnetic field source, operably coupled to the thermoelectrode, to apply a magnetic field B on the thermoelectrode along a first direction. The device also includes a voltage source, operably coupled to the thermoelectrode, to apply an electric field E on the thermoelectrode along a second direction substantially perpendicular to the first direction so as to generate a heat flow along the second direction.
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公开(公告)号：WO2019018093A2
公开(公告)日：2019-01-24
申请号：PCT/US2018/038274
申请日：2018-06-19
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： FU, Liang , SKINNER, Brian J.
IPC: H01L35/32
Abstract: A thermoelectric device includes a thermoelectrode characterized by a band gap less than k B T , where k B is the Boltzmann constant and T is a temperature of the thermoelectrode. The device also includes a magnetic field source, operably coupled to the thermoelectrode, to apply a magnetic field B on the thermoelectrode along a first direction. The device also includes a voltage source, operably coupled to the thermoelectrode, to apply an electric field E on the thermoelectrode along a second direction substantially perpendicular to the first direction so as to generate a heat flow along the second direction.
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公开(公告)号：WO2018209073A1
公开(公告)日：2018-11-15
申请号：PCT/US2018/032049
申请日：2018-05-10
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： BOZCHALOOI, Iman Soltani , YOUCEF-TOUMI, Kamal
Abstract: A LiDAR device that transmits a single or multiple continuous or intermittent laser beams to the environment and detects the reflected light on one or more detectors. The LiDAR device may include a scanning mirrors array composed of a single or multiple moving mirrors capable of changing the direction of the transmitted light. The scanning mirrors array may also include sensors and actuators which can be used to precisely control or measure the position of the mirrors. The LiDAR device may also include a lens that focuses the light captured by the mirror(s) onto a single or a multitude of detectors. The device may include laser sources and detectors operating in various wavelengths. The LiDAR device may also include laser power modulation mechanisms at a single or multitude of frequencies to improve signal detection performance and remove any ambiguity in range calculation.
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Patent Agency Ranking
公开(公告)号：WO2018208939A1
公开(公告)日：2018-11-15
申请号：PCT/US2018/031833
申请日：2018-05-09
Applicant: NEURALA, INC.
Inventor： LUCIW, Matthew , OLIVERA, Santiago , GORSHECHNIKOV, Anatoly , WURBS, Jeremy , VERSACE, Heather Ames , VERSACE, Massimiliano
Abstract: Lifelong Deep Neural Network (L-DNN) technology revolutionizes Deep Learning by enabling fast, post-deployment learning without extensive training, heavy computing resources, or massive data storage. It uses a representation-rich, DNN-based subsystem (Module A) with a fast-learning subsystem (Module B) to learn new features quickly without forgetting previously learned features. Compared to a conventional DNN, L-DNN uses much less data to build robust networks, dramatically shorter training time, and learning on-device instead of on servers. It can add new knowledge without re-training or storing data. As a result, an edge device with L-DNN can learn continuously after deployment, eliminating massive costs in data collection and annotation, memory and data storage, and compute power. This fast, local, on-device learning can be used for security, supply chain monitoring, disaster and emergency response, and drone-based inspection of infrastructure and properties, among other applications.
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公开(公告)号：WO2018204755A1
公开(公告)日：2018-11-08
申请号：PCT/US2018/031044
申请日：2018-05-04
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： BUETTNER, Felix , LEMESH, Ivan , BEACH, Geoffrey, Stephen
Abstract: A system and a method for the deterministic generation of magnetic skyrmions includes a magnetic strip configured to store and transport skyrmions. The magnetic strip includes one or more spatial inhomogeneities configured to generate a skyrmion at known locations when excited by a current pulse. A current pulse generator is used to inject current pulses into the magnetic strip via contact pads electrically coupled to both the current pulse generator and the magnetic strip. The system also includes a magnetic field source to apply an out-of-plane magnetic field across the magnetic strip to facilitate generation of skyrmions. Skyrmions can be generated by applying an out-of-plane magnetic field to the magnetic strip and injecting a current pulse with sufficient current density towards the spatial inhomogeneities. Once a skyrmion is generated, another current pulse with sufficient current density can be injected to move the skyrmion.
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公开(公告)号：WO2018067212A2
公开(公告)日：2018-04-12
申请号：PCT/US2017/038235
申请日：2017-06-20
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： SHEPARD, Ralph Hamilton , LIN, Joseph Hsuhuan , TYRRELL, Brian M. , KELLY, Michael W.
Abstract: An imaging system uses a dynamically varying coded mask, such as a spatial light modulator (SLM), to time-encode multiple degrees of freedom of a light field in parallel and a detector and processor to decode the encoded information. The encoded information may be decoded at the pixel level (e.g., with independently modulated counters in each pixel), on a read-out integrated circuit coupled to the detector, or on a circuit external to the detector. For example, the SLM, detector, and processor may create modulation sequences representing a system of linear equations where the variables represent a degree of freedom of the light field that is being sensed. If the number of equations and variables form a fully determined or overdetermined system of linear equations, the system of linear equations' solution can be determined through a matrix inverse. Otherwise, a solution can be determined with compressed sensing reconstruction techniques with the constraint that the signal is sparse in the frequency domain.
Abstract translation: 成像系统使用动态变化的编码掩模（例如空间光调制器（SLM））来并行地对光场的多个自由度进行时间编码，并使用检测器和处理器来解码 编码信息。 可以在像素级（例如，在每个像素中具有独立调制的计数器），在耦合到检测器的读出集成电路上或在检测器外部的电路上对经编码的信息进行解码。 例如，SLM，检测器和处理器可以创建表示线性方程组的系统的调制序列，其中变量表示正被感测的光场的自由度。 如果方程和变量的数目构成一个完全确定的或超定的线性方程组，则可以通过矩阵逆来确定线性方程组的解。 否则，可以使用压缩感测重建技术来确定解决方案，限制信号在频域中是稀疏的。
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公开(公告)号：WO2018044363A2
公开(公告)日：2018-03-08
申请号：PCT/US2017/032088
申请日：2017-05-11
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： SHTYRKOVA, Katia , KAERTNER, Franz X. , CALLAHAN, Patrick T. , WATTS, Michael R. , IPPEN, Erich P.
IPC: H01S3/05
CPC classification number: H01S5/0657 , H01S3/0637 , H01S3/08054 , H01S3/082 , H01S3/1112 , H01S3/1616 , H01S3/1636 , H01S5/02453 , H01S5/026 , H01S5/041 , H01S5/042 , H01S5/0604 , H01S5/06236 , H01S5/06246 , H01S5/06251 , H01S5/0651 , H01S5/1007
Abstract: An artificial saturable absorber uses additive pulse mode-locking to enable pulse operation of an on-chip laser operation. Four different artificial saturable absorbers are disclosed. The first includes an integrated coupler, two arms each containing some implementation of the end-reflector, and a phase bias element in one arm. The second includes an integrated directional coupler, two integrated waveguide arms, and another integrated coupler as an output. The third includes an integrated birefringent element, integrated birefringent-free waveguide, and integrated polarizer. And the fourth includes a multimode waveguide that allows for different modes to propagate in such a way that the difference in the spatial distribution of intensity causes a nonlinear phase difference between the modes. These are just some examples of an on-chip fully integrated artificial saturable absorber with instantaneous recovery time that allow for generation of sub-femtosecond optical pulses at high repetition rates using passive mode-locking.
Abstract translation: 人工可饱和吸收体使用附加脉冲模式锁定来启用片上激光器操作的脉冲操作。 公开了四种不同的人工可饱和吸收体。 第一个包括一个集成的耦合器，两个臂，每个臂都包含一些端部反射器，以及一个臂中的相位偏置元件。 第二个包括一个集成定向耦合器，两个集成波导臂和另一个集成耦合器作为输出。 第三种包括集成双折射元件，集成双折射波导和集成偏振器。 第四个包括一个多模波导，它允许不同的模式以这样的方式传播，即强度的空间分布的差异导致模式之间的非线性相位差。 这些仅仅是片上完全集成的人工可饱和吸收体的一些例子，具有瞬间恢复时间，允许使用被动模式锁定以高重复率产生亚飞秒光脉冲。
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公开(公告)号：WO2017210550A1
公开(公告)日：2017-12-07
申请号：PCT/US2017/035668
申请日：2017-06-02
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： HARRIS, Nicholas Christopher , CAROLAN, Jacques Johannes , PRABHU, Mihika , ENGLUND, Dirk Robert , SKIRLO, Scott , SHEN, Yichen , SOLJACIC, Marin
Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.
Abstract translation: 基于光子集成电路构建光学神经网络以执行神经形态计算。 在光学神经网络中，使用一个或多个光学干涉单元来实现矩阵乘法，其可以将任意加权矩阵乘法应用于输入光学信号阵列。 非线性激活由光学非线性单元实现，该单元可以基于非线性光学效应，例如可饱和吸收。 这些计算以光学方式实现，从而在光学神经网络中实现高计算速度和低功耗。
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