公开(公告)号：US11754293B2

公开(公告)日：2023-09-12

申请号：US17584755

申请日：2022-01-26

Applicant: PixArt Imaging Inc.

Inventor： Chih-Ming Sun ,  Ming-Han Tsai ,  Chiung-Wen Lin ,  Po-Wei Yu ,  Wei-Ming Wang ,  Sen-Huang Huang

IPC: F24C15/20 ,  G01J5/10 ,  G01J5/00 ,  B66B5/00 ,  A61F13/42

CPC classification number: F24C15/2042 ,  A61F13/42 ,  B66B5/0012 ,  G01J5/0025 ,  G01J5/10 ,  A61F2013/421 ,  G01J2005/0077 ,  G01J2005/106

Abstract: There is provided an auto detection system including a thermal detection device and a host. The host controls an indication device to indicate a prompt message or detection results according to a slope variation of voltage values or 2D distribution of temperature values detected by the thermal detection device, wherein the voltage values include the detected voltage of a single pixel or the sum of detected voltages of multiple pixels of a thermal sensor.

公开(公告)号：US20180244129A1

公开(公告)日：2018-08-30

申请号：US15443940

申请日：2017-02-27

Applicant: Ford Global Technologies, LLC

Inventor： Mike James Whitens ,  Clay Wesley Maranville ,  Cynthia Mowery Flanigan ,  Victoria Leigh Schein

IPC: B60H1/00 ,  G01J5/00 ,  G01J5/10 ,  B60S1/02

CPC classification number: B60H1/00742 ,  B60H1/00878 ,  B60S1/023 ,  G01J5/0025 ,  G01J5/0037 ,  G01J5/026 ,  G01J5/0846 ,  G01J5/10 ,  G01J2005/0077 ,  G01J2005/106

Abstract: Method and apparatus are disclosed for infrared sensor arrays for monitoring vehicle occupants and windows. An example vehicle includes a side window and an infrared sensor array. The infrared sensor array includes first pixels of measurement resolution to monitor an occupant and second pixels of measurement resolution to monitor the side window. The example vehicle also includes a cabin environment controller to detect, via the first pixels, whether a body temperature of the occupant is outside a predetermined temperature range and detect, via the second pixels, whether fog is on the side window.

公开(公告)号：US10018504B2

公开(公告)日：2018-07-10

申请号：US14939420

申请日：2015-11-12

Applicant: Sensors Unlimited, Inc.

Inventor： Jonathan Nazemi

IPC: G01J1/44 ,  G01J1/42 ,  G01J5/00 ,  H05B1/02 ,  H04N5/33 ,  H04N5/374 ,  G01J5/16 ,  G01J5/20 ,  G01J5/10

CPC classification number: G01J1/44 ,  G01J1/4228 ,  G01J5/16 ,  G01J5/20 ,  G01J2001/444 ,  G01J2005/0048 ,  G01J2005/106

Abstract: A method of normalizing FPA system gain for varying temperature includes determining an FPA temperature and calculating an FPA system gain as a function of the FPA temperature, system gain for the FPA at a reference temperature, and empirically derived coefficients. The method also includes applying the FPA system gain at the FPA temperature to condition output of the FPA to produce temperature independent image data. An imaging system includes a focal plane array (FPA). A temperature sensor is operatively connected to measure temperature of the FPA. A module is operatively connected to the FPA and temperature sensor to calculate FPA system gain for the FPA as described above, and to apply the FPA system gain to condition output of the FPA to produce temperature independent image data. There need be no temperature control device, such as a thermoelectric cooling device, connected for temperature control of the FPA.

公开(公告)号：US20180136047A1

公开(公告)日：2018-05-17

申请号：US15869725

申请日：2018-01-12

Applicant: RAYTHEON BBN TECHNOLOGIES CORP.

Inventor： Kin Chung Fong

IPC: G01J5/08

CPC classification number: G01J5/0806 ,  G01J1/42 ,  G01J1/44 ,  G01J5/0803 ,  G01J5/0818 ,  G01J5/0837 ,  G01J5/20 ,  G01J2005/106 ,  H01L29/1606

Abstract: A bolometer. In one embodiment a graphene sheet is configured to absorb electromagnetic waves. The graphene sheet has two contacts connected to an amplifier, and a power detector connected to the amplifier. Electromagnetic power in the evanescent electromagnetic waves is absorbed in the graphene sheet, heating the graphene sheet. The power of Johnson noise generated at the contacts is proportional to the temperature of the graphene sheet. The Johnson noise is amplified and the power in the Johnson noise is used as a measure of the temperature of the graphene sheet, and of the amount of electromagnetic wave power absorbed by the graphene sheet.

公开(公告)号：US09964446B2

公开(公告)日：2018-05-08

申请号：US15035182

申请日：2014-11-04

Applicant: The University of Warwick

Inventor： David Gunnarsson ,  Evan Parker ,  Martin Prest ,  Mika Prunnila ,  Terence Whall

IPC: G01J5/20 ,  G01J5/04 ,  H01L39/22 ,  H01L39/24 ,  G01J5/02 ,  H01L31/09 ,  G01J5/10

CPC classification number: G01J5/046 ,  G01J5/024 ,  G01J5/20 ,  G01J2005/106 ,  G01J2005/208 ,  H01L31/09 ,  H01L39/22 ,  H01L39/24

Abstract: A bolometer is described. A bolometer includes a superconductor-insulator-semiconductor-superconductor structure or a superconductor-insulator-semiconductor-insulator-superconductor structure. The semiconductor comprises an electron gas in a layer of silicon, germanium or silicon-germanium alloy in which valley degeneracy is at least partially lifted. The insulator or a one or both of the insulators may comprise a layer of dielectric material. The insulator or a one or both of the insulators may comprise a layer of non-degenerately doped semiconductor.

公开(公告)号：US20180091129A1

公开(公告)日：2018-03-29

申请号：US15714611

申请日：2017-09-25

Applicant: Commissariat à l'Énergie Atomique et aux Énergies Alternatives

Inventor： Jean-Pierre Rostaing ,  Bertrand Dupont ,  Nicolas Monnier ,  Jean-Alain Nicolas

IPC: H03K5/24 ,  G01J5/10 ,  H03K3/3565

CPC classification number: H03K5/2472 ,  G01J5/10 ,  G01J2005/0077 ,  G01J2005/106 ,  G06G7/14 ,  G06G7/1865 ,  H03K3/3565

Abstract: A summing circuit, including a capacitor, a switching circuit capable of connecting the capacitor between a first node (ana) and a second node (ref), between a third node and the second node in a first connection direction or between the third node and the second node in a second connection direction, an integrator coupled to the third node, a hysteresis comparator coupled to the output of the integrator, and a counter coupled to the output of the hysteresis comparator.

公开(公告)号：US20180077364A1

公开(公告)日：2018-03-15

申请号：US15266837

申请日：2016-09-15

Applicant: Sensors Unlimited, Inc.

Inventor： Henry W. Neal ,  Joshua Lund ,  Marc Hansen ,  Timothy Beystrum ,  Dmitry Zhilinsky ,  Michael D. Daugherty ,  Bert Blumenthal ,  Jonathan Nazemi ,  Andrew Eckhardt

IPC: H04N5/33 ,  H04N5/353 ,  G01J5/10 ,  F41G3/14 ,  F41G3/16

CPC classification number: H04N5/332 ,  F41G3/145 ,  F41G3/16 ,  G01J5/10 ,  G01J2005/0077 ,  G01J2005/106 ,  G01S5/16 ,  G01S7/4804 ,  H04N5/3535

Abstract: An imaging method includes receiving electromagnetic radiation at a focal plane array of a handheld device. The electromagnetic radiation is processed within the handheld device, and visible images are displayed on the handheld device. The displayed visible images are indicative of a scene, and include a designator and a designator identifier when a high frequency laser pulse is in the scene. The designator and designator identifier represent the high frequency pulsed electromagnetic radiation received by the focal plane array when a high frequency pulse is present in the scene.

公开(公告)号：US20180061198A1

公开(公告)日：2018-03-01

申请号：US15694698

申请日：2017-09-01

Applicant: FREEBOX

Inventor： Mehdi KHAIRY

IPC: G08B13/19 ,  G01J5/10

CPC classification number: G08B13/19 ,  G01J5/10 ,  G01J2005/0077 ,  G01J2005/106

Abstract: A multi-area passive infrared sensor (PIF) produces a two-dimensional image formed of a grid of squares corresponding to adjacent elementary areas of an area to be monitored, with, for each square, a respective heat signal. The squares of the grid are classified into authorized and secured squares, and the device produces, for each square, an indicator of presence/absence of a target. In the presence of a detected target in at least one square, the processor conditionally delivers an alert as a function of i) the position on the grid of the detected target and ii) of the classification into authorized or secured square of the square in which this target is detected. A data memory stores a history of the states of the grid, and the processor performs a tracking of the target by an algorithm based on adjacent squares, based on this history.

公开(公告)号：US09891113B2

公开(公告)日：2018-02-13

申请号：US14914285

申请日：2014-08-25

Applicant: Robert Bosch GmbH

Inventor： Ingo Herrmann ,  Fabian Utermoehlen

IPC: G01J5/20 ,  G01J5/14 ,  G01J5/12 ,  G01J5/00 ,  G01J5/10

CPC classification number: G01J5/14 ,  G01J5/12 ,  G01J2005/0077 ,  G01J2005/106 ,  G01J2005/123

Abstract: The present disclosure relates to a thermal sensor and a method for producing a thermal sensor of this type having a low signal-to-noise ratio at relatively high signal strengths. To this end, a thermoelectric generator is combined with a field effect transistor and a diode. Owing to its integrated diode and the barrier effect associated therewith, the thermal sensor is suitable for the economical and efficient design of imaging sensor arrays for converting thermal radiation into electrical signals.

公开(公告)号：US09810650B2

公开(公告)日：2017-11-07

申请号：US14518984

申请日：2014-10-20

Applicant: Andreas Mandelis ,  Sreekumar Kaiplavil

Inventor： Andreas Mandelis ,  Sreekumar Kaiplavil

IPC: G01J5/02 ,  G01N25/72 ,  G01J5/10 ,  G01N29/06 ,  G01N29/24 ,  G01N29/34 ,  G01J5/00

CPC classification number: G01N25/72 ,  G01J5/10 ,  G01J2005/0077 ,  G01J2005/106 ,  G01N29/0672 ,  G01N29/2418 ,  G01N29/343

Abstract: Photothermal imaging systems and methods are disclosed that employ truncated-correlation photothermal coherence tomography (TC-PCT). According to the example methods disclosed herein, photothermal radiation is detected with an infrared camera while exciting a sample with the chirped delivery of incident laser pulses (where the pulses have a fixed width), and time-dependent photothermal signal data is obtained from the infrared camera and processed using a time-evolving filtering method employing cross-correlation truncation. The cross-correlation truncation method results in pulse-compression-linewidth-limited depth-resolved images with axial and lateral resolution well beyond the well-known thermal-diffusion-length-limited, depth-integrated nature of conventional thermographic and thermophotonic modalities. As a consequence, an axially resolved layer-by-layer photothermal image sequence can be obtained, capable of reconstructing three-dimensional visualizations (tomograms) of photothermal features in wide classes of materials. Additional embodiments are disclosed in which the aforementioned systems and methods are adapted to photo-acoustic and acousto-thermal imaging.