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    SMOKE DETECTOR AND OPTICAL SENSING SYSTEM
    2.
    发明申请
    SMOKE DETECTOR AND OPTICAL SENSING SYSTEM 有权

    公开(公告)号：US20250022357A1

    公开(公告)日：2025-01-16

    申请号：US18221377

    申请日：2023-07-12

    Applicant: PixArt Imaging Inc.

    Inventor： Ching-Kun Chen ,  Guo-Zhen Wang

    IPC: G08B17/107 ,  G01N21/47

    Abstract: A smoke detector comprises a light source, an optical sensor, a first, and a second processing circuit. The optical sensor senses optical data and comprises; a first oscillator, generating a first oscillating signal; and a second oscillator, generating a second oscillating signal. The first processing circuit generates a first command to instruct the first oscillator to oscillate for a first expected oscillating time, and acquires a first real oscillating time, wherein the first processing circuit further computes a time relation between the first expected oscillating time and the first real oscillating time. The first processing circuit generates a second command to instruct the second oscillator to oscillate for a second expected oscillating time according to the time relation. The second processing circuit controls the smoke detector to generate a first alarm according to the time relation. The optical sensor can also be applied to other electronic devices.

    SYSTEM AND METHOD FOR EVALUATING LIFE SAFETY DETECTION DEVICES
    4.
    发明申请
    SYSTEM AND METHOD FOR EVALUATING LIFE SAFETY DETECTION DEVICES 有权

    公开(公告)号：US20240395124A1

    公开(公告)日：2024-11-28

    申请号：US18666058

    申请日：2024-05-16

    Applicant: Carrier Corporation

    Inventor： Callum Bailey ,  Slade Culp

    IPC: G01N15/075 ,  G08B17/107

    Abstract: Embodiments of the disclosure describe systems and methods for evaluating an operational aspect of a life safety detection device. The method comprises transmitting light from at least one light source into a detection chamber positioned within an interior of a housing of the device. Further, the method comprises receiving, over a predefined time period, scattered light within the detection chamber, wherein the scattered light is indicative of a presence of airborne particulate matter. Furthermore, the method comprises determining, by a processor coupled to the device, a variation pattern of the airborne particulate matter during the predefined time period to analyze, by the processor, the variation pattern of the airborne particulate matter over the predefined time period with respect to another variation pattern during the predefined time duration to evaluate operational aspects of the device.

    Non-coaxial systems, methods, and devices for detecting smoke
    5.
    发明授权
    Non-coaxial systems, methods, and devices for detecting smoke 有权

    公开(公告)号：US12039848B2

    公开(公告)日：2024-07-16

    申请号：US17513102

    申请日：2021-10-28

    Applicant: Honeywell International Inc.

    Inventor： Ronald Knox

    IPC: G08B17/107 ,  G01S7/481

    CPC classification number: G08B17/107 ,  G01S7/4811 ,  G01S7/4816

    Abstract: Non-coaxial systems, methods, and devices for detecting smoke are described herein. A smoke detection system may comprise a laser emitter configured to emit a laser beam, and a light receiver. The light receiver may comprise a first receiver lens, wherein a field of view of the first receiver lens includes at least a portion of the laser beam. The light receiver may also comprise a second receiver lens, wherein a field of view of the second receiver lens includes at least a portion of the laser beam and a region between an edge of the field of view of the first receiver lens and the laser emitter.

    Sealed electrical connector
    8.
    发明授权
    Sealed electrical connector 有权

    公开(公告)号：US11888258B2

    公开(公告)日：2024-01-30

    申请号：US18121105

    申请日：2023-03-14

    Applicant: Honeywell International Inc.

    Inventor： Domenico Piro ,  Gianluca Pace ,  Mauro Miheli

    IPC: H01R12/52 ,  H01R13/52 ,  G08B17/107

    CPC classification number: H01R13/5202 ,  G08B17/107 ,  H01R12/52 ,  H01R2201/20

    Abstract: Devices and methods for a sealed electrical connector are described herein. Some embodiments include a spring connecting a first PCB to a second PCB, wherein the spring includes a first end portion in contact with the first PCB, a second end portion in contact with the second PCB, and a middle portion extending between the first end portion and the second end portion, a spacer surrounding the middle portion of the spring, a first seal seated in a first groove of the spacer and in contact with the first PCB, and a second seal seated in a second groove of the spacer and in contact with the second PCB.

    COMPACT OPTICAL SMOKE DETECTOR SYSTEM AND APPARATUS
    9.
    发明公开
    COMPACT OPTICAL SMOKE DETECTOR SYSTEM AND APPARATUS 审中-公开

    公开(公告)号：US20230349807A1

    公开(公告)日：2023-11-02

    申请号：US18345335

    申请日：2023-06-30

    Applicant: Analog Devices, Inc.

    Inventor： Shrenik DELIWALA

    IPC: G01N15/06 ,  G08B17/107 ,  G08B17/113

    CPC classification number: G01N15/06 ,  G08B17/107 ,  G08B17/113 ,  G01N2015/0046

    Abstract: Herein disclosed in some embodiments is a fault detector for power amplifiers of a communication system. The fault detector can detect a portion of the power amplifiers that are in fault condition and can prevent or limit current flow to the power amplifiers in fault condition while allowing the rest of the power amplifiers to operate normally. The fault detector can further indicate which power amplifiers are in fault condition and/or the cause for the power amplifiers to be in fault condition. Based on the indication, a controller can direct communications away from the power amplifiers in fault condition and/or perform operations to correct the fault condition.

    Optical improvements to compact smoke detectors, systems and apparatus
    10.
    发明授权
    Optical improvements to compact smoke detectors, systems and apparatus 有权

    公开(公告)号：US11796445B2

    公开(公告)日：2023-10-24

    申请号：US16825339

    申请日：2020-03-20

    Applicant: Analog Devices, Inc.

    Inventor： Shrenik Deliwala

    IPC: G01N15/14 ,  G08B17/107

    CPC classification number: G01N15/1434 ,  G01N15/1429 ,  G08B17/107

    Abstract: Device for improving an optical detecting smoke apparatus and implementing thereof. Apparatus and methods for detecting the presence of smoke in a small, long-lasting smoke detector are disclosed. Specifically, the present disclosure shows how to build one or more optimized blocking members in a smoke detector to augment signal to noise ratio. This is performed while keeping the reflections from the housing structure to a very low value while satisfying all the other peripheral needs of fast response to smoke and preventing ambient light. This allows very small measurements of light scattering of the smoke particles to be reliable in a device resistant to the negative effects of dust. In particular, geometrical optical elements, e.g., cap and optical defection elements, are disclosed.

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