SYSTEM AND A METHOD FOR ATTENUATING SOUND PRODUCED BY A VEHICLE

    公开(公告)号:US20180211646A1

    公开(公告)日:2018-07-26

    申请号:US15460916

    申请日:2017-03-16

    Applicant: Wipro Limited

    Abstract: The present disclosure discloses a system for attenuating sound produced by a vehicle. The system comprises a navigation device associated with the vehicle for determining location details of the vehicle, a sound reduction unit provisioned in an exhaust assembly of the vehicle. The system further includes an Electronic Control Unit (ECU) of the vehicle communicatively coupled to the navigation device and the sound reduction unit. The ECU is configured to detect sound reduction location, by comparing the location details with a pre-defined location data and operate the sound reduction unit to attenuate sound produced by the vehicle when the sound reduction location is detected. The system of the present disclosure, attenuates sound intensity of the vehicle to a desired level by considering surrounding conditions of the vehicle, thus the vehicle noise may be automatically attenuated in the sound sensitive areas or locations.

    Light sensor arrangement and method for temperature compensation in a light sensor arrangement

    公开(公告)号:US10006806B2

    公开(公告)日:2018-06-26

    申请号:US14067862

    申请日:2013-10-30

    Applicant: ams AG

    Abstract: A light sensor arrangement according to the proposed principle comprises at least one first unshielded well (D0) and at least one second shielded well (D1) in a substrate (P). The at least one first unshielded well (D0) is being exposed to incident light (λ) and configured to generate a first sensor signal (Ch0) as a function of the incident light (λ). The at least one second shielded well (D1) in the substrate (p) being shielded from the incident light (λ) and configured to generate a second sensor signal (Ch1) as a function of the incident light (λ). The light sensor arrangement further comprises means for temperature compensation providing the first and second sensor signals (Ch0, Ch1) as temperature compensated sensor signals as a function of substrate temperature. Means to determine spectral content of the incident light (λ) are provided to determine the spectral content as a function of the temperature compensated first and second sensor signals (Ch0, Ch1).

    Ultraviolet index measuring method and apparatus

    公开(公告)号:US09952093B2

    公开(公告)日:2018-04-24

    申请号:US15007884

    申请日:2016-01-27

    CPC classification number: G01J1/4228 G01J1/16 G01J1/429

    Abstract: An ultraviolet index measuring method and apparatus includes preparing a first photosensor having spectral response only in a first section of a wavelength between 250 nm and 298 nm, a second photosensor having spectral response only in a second section of a wavelength between 298 nm and 328 nm, and a third photosensor having spectral response only in a third section of a wavelength between 328 nm and 400 nm. An output signal of the first photosensor, an output signal of the second photosensor, and an output signal of the third photosensor are calibrated using spectral irradiance of reference solar light. First photocurrent of the first photosensor, second photocurrent of the second photosensor, and third photocurrent of the third photosensor are measured under a measurement environment. An ultraviolet index is calculated using the first photocurrent, the second photocurrent, and the third photocurrent under the measurement environment.

    Ambient light sensor and adjusting method thereof, and electronic product

    公开(公告)号:US09778102B2

    公开(公告)日:2017-10-03

    申请号:US14582766

    申请日:2014-12-24

    Inventor: Leilei Pang

    Abstract: A method for adjusting an ambient light sensor includes: acquiring a color temperature of light received by the ambient light sensor; and adjusting an output light intensity of the ambient light sensor according to the color temperature to enable output light intensities of the ambient light sensor to be consistent under received light with different color temperatures. The ambient light sensor includes: an acquiring device, configured to acquire a color temperature of light received by the ambient light sensor; and an adjuster, configured to adjust an output light intensity of the ambient light sensor according to the color temperature acquired by the acquiring device to enable output light intensities of the ambient light sensor to be consistent under received light with different color temperatures.

    Lens-less optical position measuring sensor

    公开(公告)号:US09702690B2

    公开(公告)日:2017-07-11

    申请号:US13329510

    申请日:2011-12-19

    Inventor: Shrenik Deliwala

    CPC classification number: G01B11/14 G01B11/26 G01J1/0242 G01J1/0437 G01J1/1626

    Abstract: An optical detector may include an aperture, at least two photodetectors, and a measuring arrangement to quantify light detected at the photodetectors after passing through the aperture without the need for a lens. The aperture may be positioned between a light source and the two photodetectors to allow light from a light source to pass through the aperture to the photodetectors. The photodetectors may include PIN junction photodiodes and may be electrically isolated from each other, positioned next to each other in a side-by-side configuration, and then aligned with the aperture so that a proportion of the quantified light detected at the photodetectors changes as an angle of light from the light source incident to the aperture changes. Optical detectors and methods are provided.

    Near Field Gesture Control System and Method
    27.
    发明申请
    Near Field Gesture Control System and Method 有权
    近场手势控制系统和方法

    公开(公告)号:US20170064432A1

    公开(公告)日:2017-03-02

    申请号:US15244917

    申请日:2016-08-23

    Applicant: BRAGI GmbH

    Abstract: An earpiece includes an earpiece housing, a processor disposed within the earpiece housing, and a gesture based interface operatively connected to the processor and configured to detect changes in an energy field associated with user gestures. The processor is configured to interpret the changes in the energy field to determine the user gestures.

    Abstract translation: 耳机包括听筒壳体,设置在听筒壳体内的处理器以及可操作地连接到处理器并被配置为检测与用户手势相关联的能量场的变化的基于手势的界面。 处理器被配置为解释能量场中的变化以确定用户的手势。

    TECHNIQUES FOR LUMEN MAINTENANCE AND COLOR SHIFT COMPENSATION
    28.
    发明申请
    TECHNIQUES FOR LUMEN MAINTENANCE AND COLOR SHIFT COMPENSATION 有权
    用于维护和颜色移位补偿的技术

    公开(公告)号:US20160227621A1

    公开(公告)日:2016-08-04

    申请号:US15093917

    申请日:2016-04-08

    Abstract: Techniques are disclosed for maintaining consistent lumen output of a lighting assembly over time. By maintaining a consistent lumen output, it is possible to maintain acceptable color stability where color mixing of multiple outputs is used. The lighting assembly may be any lighting configuration that might suffer from lumen depreciation and/or color drift over time, and may include any type(s) of light source(s) that may be monitored and driven accordingly. The lighting assembly, in addition to light source(s), includes a photo detector and a directed light source, such as a laser. The directed light source provides a golden sample for use in calibrating the photo detector, which in turn monitors lumen output of the light source(s). Drive signals are adjusted to account for lumen depreciation of the monitored light source(s).

    Abstract translation: 公开了用于在一段时间内维持照明组件的一致的流明输出的技术。 通过保持一致的流明输出,可以在使用多个输出的颜色混合的情况下保持可接受的颜色稳定性。 照明组件可以是可能遭受流逝衰减和/或随时间的颜色漂移的任何照明配置,并且可以包括可以相应地监视和驱动的任何类型的光源。 除了光源之外,照明组件还包括光检测器和诸如激光器的定向光源。 定向光源提供用于校准光电检测器的金色样品,其又监测光源的流明输出。 驱动信号被调整以考虑所监视的光源的流明衰减。

    Method and system for stabilizing power of tunable laser in wavelength-tuning phase shift interferometer
    29.
    发明授权
    Method and system for stabilizing power of tunable laser in wavelength-tuning phase shift interferometer 有权
    在波长调谐相移干涉仪中稳定可调谐激光功率的方法和系统

    公开(公告)号:US09151667B1

    公开(公告)日:2015-10-06

    申请号:US13693089

    申请日:2012-12-04

    Inventor: Yi Zhang

    Abstract: The present invention includes a laser diode, a laser controller configured to adjust a wavelength of illumination from the laser diode, a beam sampler configured to receive illumination from the laser diode and configured to direct a delivery portion of illumination to a phase-shifting interferometer, the beam sampler configured to direct a reference portion of illumination along a reference path, a detector configured to receive the reference portion of illumination, an amplitude controller configured to receive information associated with optical power of the reference portion of illumination from the detector and further configured to compare optical power of the reference portion of illumination with a selected optical power, and an optical amplitude modulator configured to adjust optical power of illumination received from a first portion of the illumination path, the optical amplitude modulator configured to transmit illumination having adjusted optical power along a second portion of the illumination path.

    Abstract translation: 本发明包括激光二极管,被配置为调节来自激光二极管的照明波长的激光控制器,束采样器,被配置为从激光二极管接收照明并被配置为将照明的传送部分引导到移相干涉仪, 所述光束采样器被配置为沿着参考路径引导照明的参考部分,被配置为接收照明的参考部分的检测器,被配置为从所述检测器接收与所述参考部分的光功率相关联的信息的幅度控制器,并进一步配置 将照明的参考部分的光功率与所选择的光功率进行比较;以及光学幅度调制器,被配置为调整从照明路径的第一部分接收的照明的光功率,所述光学幅度调制器被配置为传输具有调节的光功率的照明 沿着第二个港口 照明路径的离子。

    Illuminance and proximity sensor
    30.
    发明授权
    Illuminance and proximity sensor 有权
    照度和接近传感器

    公开(公告)号:US09057644B2

    公开(公告)日:2015-06-16

    申请号:US13765321

    申请日:2013-02-12

    Applicant: So Eun Park

    Inventor: So Eun Park

    CPC classification number: G01J5/10 G01J1/0492 G01J1/1626

    Abstract: An illuminance and proximity sensor includes a first sensing unit that senses infrared light and green light, and forwards a first sensing signal corresponding to a result of the sensing, a second sensing unit that filters visible light, senses the infrared light, and forwards a second sensing signal corresponding to a result of the sensing, and a control unit that produces an illuminance using a first difference value from subtracting the second sensing signal from the first sensing signal, and a proximity using a second difference value from subtracting the first difference value from the second sensing signal.

    Abstract translation: 照度和接近传感器包括感测红外光和绿光的第一感测单元,并且转发与感测结果相对应的第一感测信号,第二感测单元,其对可见光进行过滤,感测红外光,并转发第二感测单元 感测信号,以及控制单元,其使用第一差分值从第一感测信号中减去第二感测信号产生照度,以及使用第二差值从近似值减去第一差值 第二感测信号。

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