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31. 发明授权

US10812184B1 Signal analysis systems and methods 有权
公开(公告)号：US10812184B1
公开(公告)日：2020-10-20
申请号：US16442438
申请日：2019-06-14
申请人： Lingze Duan , Dipen K. Barot
发明人： Lingze Duan , Dipen K. Barot
IPC分类号： H04B10/079
摘要： The present disclosure generally pertains to signal analysis systems and methods for measuring and characterizing signal attributes, such as noise. A signal analysis system comprises an optical receiver that receives an optical signal and converts the received signal into an electrical signal. A programmable frequency divider divides the frequency of the incoming electrical signal at different division ratios, and a signal analyzer analyzes the resulting signal. In this regard, by increasing the division ratio of the frequency divider and measuring the power spectral density with the signal analyzer at different division ratios, a suitable signal for determining different parameters (e.g., modulation frequency and modulation index) may be found.

32. 发明授权

US10682622B1 Micro-fluid reactor with in-plane micro-lenses 有权
公开(公告)号：US10682622B1
公开(公告)日：2020-06-16
申请号：US15585745
申请日：2017-05-03
申请人： William Randall Gaillard , John D. Williams
发明人： William Randall Gaillard , John D. Williams
IPC分类号： B01J19/00 , G02B6/32 , G02B3/06 , C12M1/40
摘要： A micro-fluidic reactor may comprise a photosensitive glass substrate with a plurality of features produced by etching. The features may include micro-channels, micro-lenses, and slots for receiving optical fibers. During operation of the micro-fluidic reactor, the optical fibers may transmit optical signals for measuring characteristics of fluid reagents and reactions taking place. The micro-lenses may focus optical signals from the optical fibers to create an approximately collimated optical path for the optical signals, reducing optical spread and enhancing fiber-to-fiber optical power coupling.

33. 发明授权

US10613252B1 Weather forecasting systems and methods 有权
公开(公告)号：US10613252B1
公开(公告)日：2020-04-07
申请号：US15073304
申请日：2016-03-17
申请人： John R. Mecikalski
发明人： John R. Mecikalski
IPC分类号： G01W1/10
CPC分类号： G01W1/10
摘要： A weather forecasting system has a data processing system that receives weather data from one or more sources and processes such data in conjunction with a weather forecasting algorithm in order to forecast weather for one or more geographic regions. In this regard, the weather data is input into a machine learning algorithm, which applies learned weights and relationships to the inputs in order to calculate at least one score indicating a probability that precipitation or other weather event will occur in the future within a certain time period (e.g., within the next 1 hour or some other unit of time) in one or more geographic regions. For each such geographic region, the weather forecasting logic may also predict the extent to which rain or other precipitation, lightning, or other weather event will occur during the time period.

34. 发明授权

US10353124B1 Omni-directional ultra-thin reflection optical filters and methods of fabrication 有权
公开(公告)号：US10353124B1
公开(公告)日：2019-07-16
申请号：US15404000
申请日：2017-01-11
申请人： Junpeng Guo
发明人： Junpeng Guo
IPC分类号： G02B5/20 , G02B5/28
摘要： A reflection optical filter has an ultra-thin semi-transparent layer and a thin layer of semiconductor (or dielectric) layer deposited onto a metal film surface at a certain thickness corresponding to a wavelength of light to be filtered from incoming light. Critical coupling of light to the optical cavity formed by the semi-transparent layer and semiconductor (or dielectric) layer on metal surface results in near perfect absorption of the light at one wavelength and strong absorption in the wavelength region near the peak absorption wavelength. Incoming lights of other wavelengths are mostly reflected by the device so the spectral content of incident light is changed. By controlling the thickness of the semiconductor (or dielectric) layer and/or other factors, such as the extent to which the semiconductor layer is annealed or changing the type of metal beneath the semiconductor (or dielectric) layer, the peak absorption wavelength of the light absorbed in the device can be precisely controlled. The overall thickness of the semi-transparent layer and semiconductor (or dielectric) layer is less than one order of magnitude of the wavelength to be filtered, which results in omni-directional performance of the optical filter.

35. 发明授权

US10191076B1 Airflow sensing systems and methods 有权
公开(公告)号：US10191076B1
公开(公告)日：2019-01-29
申请号：US14950243
申请日：2015-11-24
申请人： Gang Wang , Felix Ewere
发明人： Gang Wang , Felix Ewere
IPC分类号： G01P5/02 , G01P5/08 , G01H11/08 , G01P5/06 , G01P5/07
摘要： A flow of air induces vibration of a tip of an airflow sensor. A cantilever coupled to the tip vibrates as the tip is displaced, and a piezoelectric element associated with the cantilever generates an electrical signal in response to mechanical stress or strain induced by vibration of the cantilever. A control element that is in communication with the piezoelectric element of the cantilever receives the electrical signal and derives at least one parameter indicative of the flow of air sensed by the sensor. The control element communicates or otherwise transmits an output signal that is indicative of the parameter to an output device to display sensor data to a user as desired.

36. 发明授权

US09978885B1 Thermo-compensated silicon photo-multiplier with on-chip thermistor 有权
公开(公告)号：US09978885B1
公开(公告)日：2018-05-22
申请号：US15227500
申请日：2016-08-03
申请人： Evgeny N. Kuznetsov
发明人： Evgeny N. Kuznetsov
IPC分类号： G01T1/24 , H01L31/02 , H01L27/146 , G01J1/44
CPC分类号： H01L31/02027 , G01J1/44 , G01J2001/444 , G01J2001/4466 , G01J2001/448 , H01L27/14634 , H01L27/14643
摘要： A silicon photomultiplier (SiPM) device is provided with a SiPM matrix fabricated on a substrate, a bias power supply connected to the SiPM matrix, and a compensation circuit coupled to the bias power supply. The bias power supply provides a bias voltage to the SiPM matrix. The compensation circuit can adjust the bias voltage applied to the SiPM matrix in response to temperature changes at the substrate. The compensation circuit includes a resistor fabricated on the substrate with the SiPM matrix. The resistor can have a resistance that varies in response to temperature changes at the substrate.

37. 发明授权

US09706949B2 Systems and methods for automatically quantifying mobility 有权
公开(公告)号：US09706949B2
公开(公告)日：2017-07-18
申请号：US14192642
申请日：2014-02-27
申请人： Emil Jovanov , Aleksander Milenkovic , Mladen Milosevic
发明人： Emil Jovanov , Aleksander Milenkovic , Mladen Milosevic
IPC分类号： A61B5/103 , A61B5/117 , A61B5/11 , A61B5/00 , G06K9/00 , A61B5/024
CPC分类号： A61B5/1116 , A61B5/0022 , A61B5/024 , A61B5/1117 , A61B5/1118 , A61B5/112 , A61B5/1121 , A61B5/1122 , A61B5/6823 , A61B5/6898 , A61B5/7264 , A61B5/7275 , A61B2503/08 , A61B2562/0219 , G06F19/00 , G06K9/00342 , G06K9/00348 , G16H40/67
摘要： A system and method for automatically quantifying mobility of a person performing a mobility diagnostic procedure. In one exemplary embodiment, the system measures a posture change test procedure with integrated inertial, location, and navigation type sensors found in a mobile computing device worn by a patient during the posture change test procedure, such as a timed-up-and-go (TUG) procedure. The measurements captured during the posture change inform a health care provider about the mobility of a patient. For example, a determination about the likelihood of the patient experiencing a fall can be assessed from measurable parameters produced from the inertial, location, and navigation-type sensors.

38. 发明授权

US09367677B1 Systems and methods for user authentication using eye movement and pupil size change matching 有权
标题翻译：使用眼睛运动和瞳孔尺寸变化匹配的用户认证的系统和方法
公开(公告)号：US09367677B1
公开(公告)日：2016-06-14
申请号：US14498785
申请日：2014-09-26
申请人： Reza Adhami , Ali Alhaj Darwish
发明人： Reza Adhami , Ali Alhaj Darwish
IPC分类号： G06F21/32
CPC分类号： G06F21/32 , G06K9/00087 , G06K9/00604 , G06K9/00892
摘要： A system for eye movement and pupil size change matching for user authentication includes an ocular sensor that is configured to sense eyes of a user and collect data indicative of the user's eye movement and pupil size changes. When a user's eyes are detected, the logic analyzes data collected by the ocular sensor in order to determine whether the sensed data match data extracted from a template defined by the eye movement and pupil size changes of an authorized user. If so, the user is authenticated and is permitted to access at least one restricted resource. As an example, the user may be permitted to access an application or sensitive data stored on a computer system or to access a restricted area, such as a room of a building.
摘要翻译：用于眼睛运动和用于认证的瞳孔尺寸变化匹配的系统包括被配置为感测用户的眼睛并收集指示用户的眼睛运动和瞳孔大小变化的数据的眼睛传感器。当检测到用户的眼睛时，逻辑分析由眼睛传感器收集的数据，以便确定感测到的数据是否匹配从由眼睛移动所定义的模板和授权用户的瞳孔大小变化提取的数据。如果是这样，用户被认证并被允许访问至少一个受限资源。作为示例，可以允许用户访问存储在计算机系统上的应用或敏感数据或访问诸如建筑物的房间的限制区域。

39. 发明授权

US08817271B1 Fiber optic directional sensor and method 有权
标题翻译：光纤定向传感器和方法
公开(公告)号：US08817271B1
公开(公告)日：2014-08-26
申请号：US13362996
申请日：2012-01-31
申请人： Joseph M. Geary
发明人： Joseph M. Geary
IPC分类号： G01B11/24
CPC分类号： G01S3/783 , G01S3/781
摘要： A fiber optic directional sensor has a substantially hemispherical dome surface and a substantially flat surface. The sensor is formed from a plurality of optical fibers fused to one another, and each optical fiber extends from the dome surface to the flat surface. One end of each optical fiber is substantially perpendicular to the sensor's dome surface, and the opposite end of the fiber is substantially perpendicular to the sensor's flat surface such that an end face of the fiber is substantially tangent to the dome surface, and another end face of the fiber is substantially tangent to the flat surface. Using the sensor, light from projectiles, such as missiles, bullets, and other weaponry, can be detected, and the locations of the projectiles can be determined.
摘要翻译：光纤定向传感器具有基本上半球状的圆顶表面和基本平坦的表面。传感器由彼此熔合的多个光纤形成，并且每个光纤从圆顶表面延伸到平坦表面。每个光纤的一端基本上垂直于传感器的圆顶表面，并且光纤的相对端基本上垂直于传感器的平坦表面，使得光纤的端面基本上与圆顶表面相切，而另一个端面的纤维基本上与平坦表面相切。使用传感器，可以检测出射弹，如导弹，子弹和其他武器的光线，并确定射弹的位置。

40. 发明授权

US08706178B2 Method and device for determining oxygen saturation of hemoglobin, for determining hematocrit of blood, and/or for detecting macular degeneration 失效
标题翻译：用于确定血红蛋白的氧饱和度，用于确定血液的血细胞比容和/或用于检测黄斑变性的方法和装置
公开(公告)号：US08706178B2
公开(公告)日：2014-04-22
申请号：US11913372
申请日：2006-05-02
申请人： Kurt R. Denninghoff , Sharon Hillman
发明人： Kurt R. Denninghoff , Lloyd W. Hillman
IPC分类号： A61B5/1455
CPC分类号： G01N33/4925 , G01N2021/3144 , G01N2021/3148
摘要： A method and device for accurately determining oxygen saturation of hemoglobin by the measurement of the optical density of a sample, such as a blood vessel, in response to illumination by light having at least three wavelengths (λ1, λ2, λ3, . . . ) within a range of about 460 nm to about 523 nm. The hematocrit of a sample may be determined from optical density measurements at the three or more wavelengths in conjunction with a known path length. The device may be an intravenous or intra-arterial fiber optic catheter used to deliver the interrogating light signal to the blood and to detect the reflected signal. A method and device of determining the thickness of the retinal well using spectroscopic information are also disclosed.
摘要翻译：通过对具有至少三个波长（λ1，λ2，λ3等）的光的照射来测量样品（例如血管）的光密度来准确地确定血红蛋白的氧饱和度的方法和装置。在约460nm至约523nm的范围内。样品的血细胞比容可以通过结合已知的路径长度在三个或更多个波长处的光密度测量来确定。该装置可以是用于将询问光信号传递到血液并检测反射信号的静脉内或动脉内纤维导管。还公开了使用光谱信息确定视网膜的厚度的方法和装置。

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