INTELLIGENT PREPROCESSING OF MULTI-DIMENSIONAL TIME-SERIES DATA

    公开(公告)号:WO2019182679A1

    公开(公告)日:2019-09-26

    申请号:PCT/US2019/014513

    申请日:2019-01-22

    Abstract: The disclosed embodiments relate to a system that preprocesses sensor data to facilitate prognostic-surveillance operations. During operation, the system obtains training data from sensors in a monitored system during operation of the monitored system, wherein the training data comprises time-series data sampled from signals produced by the sensors. The system also obtains functional requirements for the prognostic-surveillance operations. Next, the system performs the prognostic-surveillance operations on the training data and determines whether the prognostic-surveillance operations meet the functional requirements when tested on non-training data. If the prognostic-surveillance operations do not meet the functional requirements, the system iteratively applies one or more preprocessing operations to the training data in order of increasing computational cost until the functional requirements are met.

    METHOD AND APPARATUS FOR EXTENDING DEPTH OF FIELD DURING FLUORESCENCE MICROSCOPY IMAGING

    公开(公告)号:WO2019148142A2

    公开(公告)日:2019-08-01

    申请号:PCT/US2019/015485

    申请日:2019-01-28

    Abstract: The disclosed embodiments relate to a system that performs microscopy imaging with an extended depth of field. This system includes a stage for holding a sample, and a light source for illuminating the sample, wherein the light source produces ultraviolet light with a wavelength in the 230 nm to 300 nm range to facilitate microscopy with ultraviolet surface excitation (MUSE) imaging. The system also includes an imaging device, comprising an objective that magnifies the illuminated sample, and a sensor array that captures a single image of the magnified sample. The system also includes a controller, which controls the imaging device and/or the stage to scan a range of focal planes for the sample during an acquisition time for the single image. The system additionally includes an image-processing system, which processes the single image using a deconvolution technique to produce a final image with an extended depth of field.

    WAVEGUIDE-BASED SIDE-ILLUMINATION TECHNIQUE FOR MUSE MICROSCOPY AND ASSOCIATED HISTOLOGY CASSETTES

    公开(公告)号:WO2018204712A1

    公开(公告)日:2018-11-08

    申请号:PCT/US2018/030977

    申请日:2018-05-03

    Abstract: During operation of the system, a sample of the biological material is placed against a surface of a waveguide, which is comprised of a UV-transparent waveguide material. Then, the system launches UV light from a UV light source via side-illumination into an input end of the waveguide, wherein a launch angle for components of the UV light is greater than a critical angle between the waveguide material and air, so that the UV light propagates through the waveguide via total internal reflection to reach the sample. The launch angle is also less than a critical angle between the waveguide material and the sample, so that when the UV light reaches the sample, the UV light escapes the waveguide through refraction to illuminate the sample. Finally, an imaging mechanism located on an opposite side of the waveguide from the sample captures an image of the illuminated sample.

    ROBUST, CLINICAL-GRADE TRANSABDOMINAL FETAL PULSE OXIMETRY

    公开(公告)号:WO2018094391A3

    公开(公告)日:2018-05-24

    申请号:PCT/US2017/062782

    申请日:2017-11-21

    Abstract: The system determines a fetal blood oxygenation level by activating two or more light sources, having different wavelengths, which are positioned on the maternal abdomen of a pregnant mammal to direct light into a maternal abdomen toward a fetus. The system then receives a maternal signal from a first photodetector, which is positioned on the maternal abdomen to receive reflected light that traverses maternal tissue. The system also receives a mixed signal from a second photodetector, which is positioned on the maternal abdomen to receive reflected light that traverses both maternal and fetal tissue. The system performs a filtering operation that removes maternal signal components from the mixed signal to produce a fetal signal. The system determines the fetal blood oxygenation level by performing a pulse-oximetry computation on the fetal signal. The system dynamically adjusts operational parameters in the face of changing variables, such as fetus position and depth.

    FAST TUNABLE HYBRID LASER WITH A SILICON-PHOTONIC SWITCH
    5.
    发明申请
    FAST TUNABLE HYBRID LASER WITH A SILICON-PHOTONIC SWITCH 审中-公开
    具有硅光子开关的快速可调谐混合激光器

    公开(公告)号:WO2018085146A1

    公开(公告)日:2018-05-11

    申请号:PCT/US2017/058767

    申请日:2017-10-27

    Abstract: A tunable laser includes a reflective silicon optical amplifier, RSOA (104) with a reflective end and an interface end and an array of narrow-band reflectors (118), which each have a different center wavelength. It also includes a silicon-photonic optical switch (116), having an input port and N output ports that are coupled to a different narrow-band reflector in the array of narrow-band reflectors. The tunable laser also includes an optical waveguide (107) coupled between the interface end of the RSOA and the input of the silicon- photonic optical switch. The frequency of this tunable laser can be tuned in discrete increments by selectively coupling the input port of the silicon-photonic optical switch to one of the N output ports, thereby causing the RSOA to form a lasing cavity with a selected narrow-band reflector coupled to the selected output port. The tunable laser also includes a laser output (110, 112) optically coupled to the lasing cavity.

    Abstract translation: 可调谐激光器包括反射式硅光放大器,具有反射端和接口端的RSOA(104)以及各自具有不同中心波长的窄带反射器阵列(118)。 它还包括具有输入端口和N个输出端口的硅光子光学开关(116),所述输入端口和N个输出端口耦合到窄带反射器阵列中的不同窄带反射器。 可调谐激光器还包括耦合在RSOA的接口端和硅 - 光子光学开关的输入之间的光波导(107)。 通过将硅光子光学开关的输入端口选择性地耦合到N个输出端口中的一个端口,可以以离散增量调谐该可调谐激光器的频率,从而使RSOA与选定的耦合的窄带反射器形成激光谐振腔 到选定的输出端口。 可调谐激光器还包括光学耦合到激光发射腔的激光输出(110,112)。

    ZERO-TOUCH ONBOARDING IN A MESH NETWORK
    7.
    发明申请
    ZERO-TOUCH ONBOARDING IN A MESH NETWORK 审中-公开
    零网络在网络中的零触控

    公开(公告)号:WO2016159954A1

    公开(公告)日:2016-10-06

    申请号:PCT/US2015/023340

    申请日:2015-03-30

    Abstract: A technique for establishing connectivity between electronic devices is described. In particular, when an electronic device is first connected to a network, the electronic device may use a predefined location of a registrar device to request location information for a controller for the electronic device. The electronic device may provide a manufacturer certificate to the registrar device to confirm its identity. After receiving from the registrar device the location information and a registrar certificate that confirms its identity, the electronic device may use the location information to request the security information from a controller that allows the electronic device to establish connectivity with another electronic device. The electronic device may receive the security from the controller along with a controller certificate that confirms the identity of the controller. Moreover, the electronic device may establish a connection with the other electronic device based on the security information.

    Abstract translation: 描述了用于建立电子设备之间的连接的技术。 特别地,当电子设备首先连接到网络时,电子设备可以使用注册器设备的预定义位置来请求用于电子设备的控制器的位置信息。 电子设备可以向注册器设备提供制造商证书以确认其身份。 在从注册服务器设备接收到位置信息和确认其身份的注册服务商证书之后,电子设备可以使用位置信息从允许电子设备建立与另一电子设备的连接的控制器请求安全信息。 电子设备可以从控制器接收安全性以及确认控制器身份的控制器证书。 此外,电子设备可以基于安全信息与其他电子设备建立连接。

    SAFETY-ENHANCED LASER ARRAY
    8.
    发明申请
    SAFETY-ENHANCED LASER ARRAY 审中-公开
    安全增强型激光阵列

    公开(公告)号:WO2016153899A1

    公开(公告)日:2016-09-29

    申请号:PCT/US2016/022781

    申请日:2016-03-17

    Abstract: When an unsafe port with a loss of signal is detected, a transceiver may enable one laser in a group of lasers associated with the unsafe port and may disable the remaining lasers. Then, the transceiver may instruct a transmitter associated with the one laser to transmit an optical signal on the unsafe port using a reduced transmit power that is less than a threshold value associated with the Class 1 conditions and at a different time than enabled lasers in other groups of lasers. Alternatively, for a safe port on which valid communication is received, the transceiver may enable lasers in a group of lasers associated with the safe port. Then, the transceiver may instruct transmitters associated with the lasers in this group of lasers to transmit optical signals on the safe port using a normal transmit power for the lasers that is greater than the threshold value.

    Abstract translation: 当检测到具有信号丢失的不安全端口时,收发器可以在与不安全端口相关联的一组激光器中启用一个激光器,并且可以禁用剩余的激光器。 然后,收发器可以指示与一个激光器相关联的发射器在不安全端口上使用小于与类别1条件相关联的阈值的衰减的发射功率以及在与其他激光器中的能量激光器不同的时间 激光组。 或者,对于在其上接收有效通信的安全端口,收发器可以使得与安全端口相关联的一组激光器中的激光器成为可能。 然后,收发器可以指示与该组激光器中的激光器相关联的发射器使用大于阈值的激光器的正常发射功率在安全端口上传输光信号。

    WLAN TESTING USING AN RF ABSTRACTION LAYER
    9.
    发明申请
    WLAN TESTING USING AN RF ABSTRACTION LAYER 审中-公开
    使用RF抽象层进行WLAN测试

    公开(公告)号:WO2016108880A1

    公开(公告)日:2016-07-07

    申请号:PCT/US2014/072974

    申请日:2014-12-31

    CPC classification number: H04W24/06

    Abstract: A technique for testing wireless-local-area-network ( WLAN ) infrastructure is described. In particular, a radio-frequency abstraction layer ( RFAL ) in a physical instance of an electronic device is used to simulate the physical layer communication hardware and radio channels. RFAL allows frames in initial packets that are compatible with a WLAN communication protocol (such as an IEEE 802.11 standard) to be encapsulated in the data-link layer into additional packets that are compatible with a network communication protocol (such as an IEEE 802.3 standard). These additional packets can include information that characterizes transmission of the packet through a simulated radio-frequency environment so that the software stack associated with a physical or virtual instance of an electronic device can be exercised as if the packet had been received over a wireless connection. Then, the additional packets can be communicated via Ethernet (i.e., without radio-frequency communication) among virtual instances of access points, clients and/or WLAN controllers.

    Abstract translation: 描述了一种用于测试无线局域网(WLAN)基础设施的技术。 特别地,使用电子设备的物理实例中的射频抽象层(RFAL)来模拟物理层通信硬件和无线电信道。 RFAL允许将与WLAN通信协议(例如IEEE 802.11标准)兼容的初始分组中的帧封装在数据链路层中,以与与网络通信协议(诸如IEEE 802.3标准)兼容的附加分组中, 。 这些附加分组可以包括通过模拟的射频环境表征分组的传输的信息,使得可以如同通过无线连接接收到分组一样,与电子设备的物理或虚拟实例相关联的软件栈被执行。 然后,在接入点,客户端和/或WLAN控制器的虚拟实例中,可以经由以太网(即,无射频通信)来传送附加分组。

    CALIBRATION-FREE LOCATION DETERMINATION USING WIRELESS COMMUNICATION
    10.
    发明申请
    CALIBRATION-FREE LOCATION DETERMINATION USING WIRELESS COMMUNICATION 审中-公开
    使用无线通信进行无校准的位置确定

    公开(公告)号:WO2016093860A1

    公开(公告)日:2016-06-16

    申请号:PCT/US2014/070015

    申请日:2014-12-12

    Inventor: HAN, Yang

    CPC classification number: G01S5/14 G01S5/30 G01S11/06

    Abstract: In order to accurately determine the location of an electronic device in an environment, a computer selects a set of received-signal-strength ( RSS ) values based on wireless communication between the electronic device and access points in sub-regions of the environment. This set includes a largest RSS value associated with a sub-region and at least two RSS values associated with neighboring sub-regions. Then, the computer calculates pairwise distance estimates of the location of the electronic device in the environment based on predefined locations of the access points associated with the set, one or more differences of pairs of RSS values in the set and a predetermined path-loss factor in the environment, where a given pair of RSS values includes the largest RSS value and one of the two RSS values. Furthermore, the computer determines the location of the electronic device in the environment based on the pairwise distance estimates.

    Abstract translation: 为了准确地确定电子设备在环境中的位置,计算机基于电子设备与环境的子区域中的接入点之间的无线通信来选择一组接收信号强度(RSS)值。 该集合包括与子区域相关联的最大RSS值和与相邻子区域相关联的至少两个RSS值。 然后,计算机基于与集合相关联的接入点的预定义位置来计算电子设备在环境中的位置的成对距离估计,集合中的RSS对的一个或多个差异以及预定的路径损耗因子 在环境中,给定的一对RSS值包括最大的RSS值和两个RSS值之一。 此外,计算机基于成对距离估计来确定电子设备在环境中的位置。

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