Covert target acquisition with coded short-wave infrared glasses

    公开(公告)号:US11314090B2

    公开(公告)日:2022-04-26

    申请号:US16551269

    申请日:2019-08-26

    Abstract: Infrared vision systems, headpieces, and methods include an eyepiece and a body module. The eyepiece is configured to be worn over a user's eyes. The eyepiece includes an infrared sensor, configured to detect external infrared information. For example, the infrared sensor may include a plurality of short-wave infrared (SWIR) sensors. The eyepiece includes a display, configured to visually provide external infrared information to the user. For example, the display may include a see-through color display. The body module is in wired or wireless communication with the eyepiece. The eyepiece may include an adjustable strap, coupled to the eyepiece. The adjustable strap is configured to wrap around the user's head.

    Method for forming hermetic seals in MEMS devices

    公开(公告)号:US11161737B2

    公开(公告)日:2021-11-02

    申请号:US16773042

    申请日:2020-01-27

    Abstract: A method of processing a double sided wafer of a microelectromechanical device includes spinning a resist onto a first side of a first wafer. The method further includes forming pathways within the resist to expose portions of the first side of the first wafer. The method also includes etching one or more depressions in the first side of the first wafer through the pathways, where each of the depressions have a planar surface and edges. Furthermore, the method includes depositing one or more adhesion metals over the resist such that the one or more adhesion metals are deposited within the depressions, and then removing the resist from the first wafer. The method finally includes depositing indium onto the adhesion metals deposited within the depressions and bonding a second wafer to the first wafer by compressing the indium between the second wafer and the first wafer.

    Computing and displaying climb dive marker elevation

    公开(公告)号:US10794726B2

    公开(公告)日:2020-10-06

    申请号:US15883989

    申请日:2018-01-30

    Abstract: A method of calculating a climb-dive marker (CDM) that is visibly present on a display even as the aircraft approaches a roll angle of +/−90° is provided. An exemplary CDM method comprises obtaining, an X-axis velocity, a Y-axis velocity, and a Z-axis velocity in aircraft body coordinates of an aircraft; calculating a CDM elevation; and displaying, by the controller, the calculated CDM elevation. The method can further comprise obtaining an angle of attack (AoA) of the aircraft and a roll angle of the aircraft, wherein the AoA is set as the value of the CDM elevation when the roll angle is within a preset range. The CDM elevation may also be calculated using a combination of the AOA and the CDM formula when roll angle is within a second preset range.

    Method for forming hermetic seals in MEMS devices

    公开(公告)号:US10584027B2

    公开(公告)日:2020-03-10

    申请号:US15829314

    申请日:2017-12-01

    Abstract: A method of processing a double sided wafer of a microelectromechanical device includes spinning a resist onto a first side of a first wafer. The method further includes forming pathways within the resist to expose portions of the first side of the first wafer. The method also includes etching one or more depressions in the first side of the first wafer through the pathways, where each of the depressions have a planar surface and edges. Furthermore, the method includes depositing one or more adhesion metals over the resist such that the one or more adhesion metals are deposited within the depressions, and then removing the resist from the first wafer. The method finally includes depositing indium onto the adhesion metals deposited within the depressions and bonding a second wafer to the first wafer by compressing the indium between the second wafer and the first wafer.

    System and method for detecting angle ambiguity in optical sensors

    公开(公告)号:US09885770B2

    公开(公告)日:2018-02-06

    申请号:US14830047

    申请日:2015-08-19

    Abstract: There is provided in a first form, an apparatus. The apparatus includes a detector array having a plurality of elements, the detector array comprising a photosensitive material and a photosensitive region disposed about and distinct from the plurality of elements. Electrical circuitry is coupled to each of the elements of the detector array. The electrical circuitry is configured to generate a set of first signals, each first signal of the set of first signals is based on optical energy impinging on a respective one of the plurality of elements of the detector array. The photosensitive region is coupled to the electrical circuitry and the electrical circuitry is configured to generate a second signal having a first value if no portion of optical energy impinging on the plurality of elements of the detector array impinges on the region disposed about the plurality of elements of the detector array. The second signal has a second value, distinct from the first value, if a portion of an optical energy impinging on the plurality of elements of the detector array impinges on the photosensitive region disposed about the plurality of elements of the detector array, the portion of the optical energy impinging on the photosensitive region disposed about the plurality of elements exceeds a threshold energy.

    SYSTEMS AND METHODS FOR DETECTING LIGHT SOURCES
    8.
    发明申请
    SYSTEMS AND METHODS FOR DETECTING LIGHT SOURCES 审中-公开
    用于检测光源的系统和方法

    公开(公告)号:US20160080668A1

    公开(公告)日:2016-03-17

    申请号:US14857240

    申请日:2015-09-17

    CPC classification number: H04N5/33

    Abstract: A method for detecting light sources. The method includes capturing an image including a sub-infrared light emitter, applying a filter to a pixel of the captured image to isolate a signal strength of a range of frequencies, and comparing the signal strength of the filtered pixel to an expected signal strength of a background spectra for the range of frequencies. As a result of a difference between the signal strength of the filtered pixel and the expected signal strength exceeding a predetermined threshold, the method includes identifying the pixel as corresponding to a light emitter. As a result of the difference between the signal strength of the filtered pixel and the expected signal strength not a predetermined threshold, the method includes identifying the pixel as not corresponding to a light emitter.

    Abstract translation: 一种光源检测方法。 该方法包括捕获包括副红外光发射器的图像,将滤波器应用于所捕获图像的像素以隔离频率范围的信号强度,并将滤波像素的信号强度与预测信号强度进行比较 频率范围的背景谱。 作为滤波像素的信号强度与超过预定阈值的预期信号强度之间的差异的结果,该方法包括识别与光发射器相对应的像素。 作为滤波像素的信号强度与期望信号强度之间的差异而不是预定阈值的结果,该方法包括将像素识别为不对应于发光体。

    MIMO slotted aloha (MSA) system
    9.
    发明授权
    MIMO slotted aloha (MSA) system 有权
    MIMO时隙aloha(MSA)系统

    公开(公告)号:US08553824B2

    公开(公告)日:2013-10-08

    申请号:US12388912

    申请日:2009-02-19

    CPC classification number: H04W56/001 H04J3/0605 H04L27/2656 H04L27/2657

    Abstract: A method including receiving at a synchronizing node a first reference frame from a first reference node at a first time and storing a first time value representing the first time, and calculating a timing estimator by subtracting a minimum time value, representing the distance from the synchronizing node to the first reference node, from the first time value. The method includes receiving at the synchronizing node a second reference frame at a second time and transmitting from the synchronizing node to the first reference node a short timing contention time frame. The method includes receiving at the synchronizing node from the first reference node an arrival time value representing the time at which the first reference node received the short timing contention frame and calculating a time drift from the first arrival time value and the second time value and adjusting the timing estimator based on the time drift.

    Abstract translation: 一种方法,包括在第一时间从第一参考节点在同步节点处接收第一参考帧并且存储表示第一时间的第一时间值,以及通过从表示距离的同步的距离中减去最小时间值来计算定时估计器 节点到第一个参考节点,从第一个时间值。 该方法包括在第二时间在同步节点处接收第二参考帧,并从同步节点向第一参考节点发送短时间争用时间帧。 该方法包括在第一参考节点的同步节点处接收表示第一参考节点接收到短定时竞争帧的时间的到达时间值,并从第一到达时间值和第二时间值计算时间漂移并调整 基于时间漂移的定时估计器。

    System and Method for Efficiently Delivering Rays from a Light Source to Create an Image
    10.
    发明申请
    System and Method for Efficiently Delivering Rays from a Light Source to Create an Image 有权
    从光源有效地提供光线以创建图像的系统和方法

    公开(公告)号:US20110164221A1

    公开(公告)日:2011-07-07

    申请号:US12981137

    申请日:2010-12-29

    CPC classification number: G02B27/283 H04N9/3167

    Abstract: In accordance with one embodiment of the present disclosure, a system may include a polarizing beamsplitter for splitting one or more unpolarized rays received from an illumination source into a first polarized component and a second polarized component, the first polarized component and the second polarized component having orthogonal polarizations to each other. The system may also include a half-wave plate for rotating the second polarized component to the same polarization as the first polarized component. The system may further include a lens group for passing the first polarized component to a target plane as a first polarized ray, and further for separately passing the second polarized component to the target plane as a second polarized ray.

    Abstract translation: 根据本公开的一个实施例,系统可以包括偏振分束器,用于将从照明源接收的一个或多个非偏振光分成第一偏振分量和第二偏振分量,第一偏振分量和第二偏振分量具有 彼此正交偏振。 该系统还可以包括用于将第二偏振分量旋转到与第一偏振分量相同偏振的半波片。 该系统还可以包括用于将第一偏振分量作为第一偏振光线传递到目标平面的透镜组,并且还用于将第二偏振分量作为第二偏振光线单独地通过到目标平面。

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