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1. 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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

7. 发明授权

US09627747B2 Dual-polarized magnetic antennas 有权
公开(公告)号：US09627747B2
公开(公告)日：2017-04-18
申请号：US14092414
申请日：2013-11-27
申请人： Yang-Ki Hong , Woncheo Lee
发明人： Yang-Ki Hong , Woncheo Lee
IPC分类号： H01Q1/00 , H01Q7/08 , H01Q1/36 , H01Q1/38
CPC分类号： H01Q1/36 , H01Q1/38 , H01Q7/08
摘要： The present disclosure generally pertains to dual-polarized magnetic antennas that may be used in various applications and are particularly suited for use in mobile devices and systems. In one exemplary embodiment, a dual-polarized antenna has a ferrite substrate that provides for the use of small antenna elements and also provides broad bandwidth and good impedance matching and isolation making the antenna attractive for use in mobile applications. Such antenna also has nearly omnidirectional radiation patterns and orthogonal polarizations. Further, the radiator type may be selected depending on the desired effective permeability in order to control return loss, isolation, and fractional bandwidth (FBW).

8. 发明授权

US09406418B2 Magnetic exchange coupled core-shell nanomagnets 有权
公开(公告)号：US09406418B2
公开(公告)日：2016-08-02
申请号：US14741217
申请日：2015-06-16
申请人： Yang-Ki Hong , Seok Bae
发明人： Yang-Ki Hong , Seok Bae
IPC分类号： G01R33/383 , H01F1/03 , H01F3/00 , H01F1/00 , H01F1/06 , G11B5/706
CPC分类号： H01F1/0302 , G11B5/706 , H01F1/0054 , H01F1/061 , H01F3/00
摘要： A permanent magnet is fabricated such that it has a magnetically hard core surrounded by a thin magnetically soft shell. The magnetically hard core provides a relatively high intrinsic coercivity (Hci), and the magnetically soft shell provides a relatively high magnetic flux density (B). Due to magnetic exchange coupling between the core and shell, a relatively high maximum energy product (BH)max is achievable over a wide temperature range, including temperatures above 150° C. Further, such effects can be achieved without using rare-earth metals or precious metals helping to keep the manufacturing costs of the magnet low. To allow sufficient exchange magnetic coupling between the core and shell, the width of the shell is less than about 40 nanometers, and the overall dimensions are controlled such that the width of the shell is less than two times the Bloch domain wall thickness of the core.

9. 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。

10. 发明授权

US09330826B1 Integrated architecture for power converters 有权
标题翻译：电源转换器的集成架构
公开(公告)号：US09330826B1
公开(公告)日：2016-05-03
申请号：US13027081
申请日：2011-02-14
申请人： Jaber A. Abu Qahouq , Yang-Ki Hong , Seok Bae
发明人： Jaber A. Abu Qahouq , Yang-Ki Hong , Seok Bae
IPC分类号： H01F5/00 , H01F17/00 , H01F27/28
CPC分类号： H01F17/0013 , H01F17/0006 , H01F27/2804 , H01F27/40 , H02M3/1584 , H02M2001/0064
摘要： A power converter having components enclosed by legs of a first inductor is described. The first inductor is fabricated on the top surface of a substrate along the perimeter of the substrate. A second inductor is fabricated on the bottom surface of the substrate and mirrors the first inductor. Electromagnetic cancellation is provided when the current flow in the second inductor is opposite of the current flow in the first inductor.
摘要翻译：描述了具有由第一电感器的腿部包围的部件的功率转换器。第一电感器沿着衬底的周边被制造在衬底的顶表面上。第二电感器被制造在衬底的底表面上并且反射第一电感器。当第二电感器中的电流与第一电感器中的电流相反时，提供电磁消除。

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