知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

47 records (took 0.06 seconds)

    Adaptive environmental controls in a vehicle
    1.
    发明授权
    Adaptive environmental controls in a vehicle 有权

    公开(公告)号：US12168387B2

    公开(公告)日：2024-12-17

    申请号：US16826258

    申请日：2020-03-22

    Applicant: Analog Devices, Inc.

    Inventor： Shrenik Deliwala

    IPC: B60H1/00 ,  A61B5/00 ,  A61B5/01 ,  A61B5/083

    Abstract: System and apparatus for carbon dioxide detection within an automobile. Specifically, this disclosure describes apparatuses and systems for optical gas detection in a stationary and moving vehicle. There is a need for a such a system to prevent loss of life and contribute to a safer traffic environment. This disclosure provides a highly efficient optical measurement system based on principals of optical absorption spectroscopy. It detects the presence of neglected children and animals and changes the vehicle's interior environment accordingly so as to preclude many potentially dangerous conditions. The present disclosure can also optimize ventilation for a driver. To this end, a driver can maximize alertness and attentiveness.

    Self-aligned light angle sensor using thin metal silicide anodes
    2.
    发明授权
    Self-aligned light angle sensor using thin metal silicide anodes 有权

    公开(公告)号：US11674797B2

    公开(公告)日：2023-06-13

    申请号：US16826257

    申请日：2020-03-22

    Applicant: Analog Devices, Inc.

    Inventor： Shrenik Deliwala ,  Paul W. Stevens ,  William Edward O'Mara

    IPC: G01B11/27 ,  H01L29/66 ,  H01L29/872

    CPC classification number: G01B11/272 ,  H01L29/66143 ,  H01L29/872

    Abstract: Aspects of the embodiments are directed to non-contact systems, methods and devices for optical detection of objects in space at precise angles. This method involves the design and fabrication of photodiode arrays for measuring angular response using self-aligned Schottky platinum silicide (PtSi) PIN photodiodes (PN-diodes with an intrinsic layer sandwiched in between) that provide linear angular measurements from incident light in multiple dimensions. A self-aligned device is defined as one in which is not sensitive to photomask layer registrations. This design eliminates device offset between “left” and right” channels for normal incident light as compared to more conventional PIN diode constructions.

    Stable measurement of sensors methods and systems
    4.
    发明授权
    Stable measurement of sensors methods and systems 有权

    公开(公告)号：US10921367B2

    公开(公告)日：2021-02-16

    申请号：US16792596

    申请日：2020-02-17

    Applicant: Analog Devices, Inc.

    Inventor： Shrenik Deliwala

    IPC: G01N15/06 ,  G01R31/28 ,  G01N15/00

    Abstract: Gain independent reference channel measurement system and method. A method of making robust, stable measurements, in a variety of different applications is disclosed. More specifically, this disclosure describes systems and methods relating to performing gain independent reference channel measurements by making two phase measurements of a device under test. Mathematically, the measurements are combined and many common mode parameters drop out. The result yields an analysis of a device under test analysis which mitigated errors, predominately arising from environmental variations and changes in circuit behavior stemming from swings in signal input.

    Smoke detector chamber boundary surfaces
    5.
    发明授权
    Smoke detector chamber boundary surfaces 有权

    公开(公告)号：US10809173B2

    公开(公告)日：2020-10-20

    申请号：US16206268

    申请日：2018-11-30

    Applicant: Analog Devices, Inc.

    Inventor： Shrenik Deliwala

    IPC: G01N15/06 ,  G08B17/107 ,  G08B17/103

    Abstract: Device for optically detecting smoke 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 a very compact housing around the smoke detector 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.

    BLOCKING SPECULAR REFLECTIONS
    6.
    发明申请
    BLOCKING SPECULAR REFLECTIONS 审中-公开

    公开(公告)号：US20200249158A1

    公开(公告)日：2020-08-06

    申请号：US16855279

    申请日：2020-04-22

    Applicant: Analog Devices, Inc.

    Inventor： Shrenik Deliwala

    IPC: G01N21/53 ,  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.

    CIRCUIT ARCHITECTURE FOR PHOTODIODES
    8.
    发明申请
    CIRCUIT ARCHITECTURE FOR PHOTODIODES 有权
    光电二极管电路架构

    公开(公告)号：US20140323844A1

    公开(公告)日：2014-10-30

    申请号：US13870669

    申请日：2013-04-25

    Applicant: ANALOG DEVICES, INC.

    Inventor： Shrenik Deliwala ,  Steven J. Decker ,  Dan M. Weinberg

    IPC: H01L31/02 ,  A61B5/00

    CPC classification number: H01L31/02016 ,  A61B5/0059 ,  A61B5/02433 ,  A61B5/7225 ,  H01L31/02019 ,  H03F3/45 ,  H04B2210/003

    Abstract: An electrical circuit includes a photodiode that receives a light signal from a light source and generates a photocurrent signal, a trans-impedance amplifier that amplifies the photocurrent signal and generates a low noise signal, and a high pass filter that converts the low noise signal into an alternating current (AC) signal having a positive amplitude, a negative amplitude, and a zero cross-over point between the positive amplitude and the negative amplitude. The electrical circuit also includes a positive integrating amplifier that receives the positive amplitude of the AC signal and generates a positive integrated value over an integration period, and a negative integrating amplifier that receives the negative amplitude of the AC signal and generates a negative integrated value over the integration period. The electrical circuit further includes at least one analog-to-digital converter that receives the positive and negative integrated values.

    Abstract translation: 电路包括光电二极管，其从光源接收光信号并产生光电流信号，放大光电流信号并产生低噪声信号的跨阻放大器，以及将低噪声信号转换成 在正振幅和负振幅之间具有正振幅，负振幅和零交叉点的交流（AC）信号。 电路还包括正积分放大器，其接收AC信号的正幅度并在积分周期上产生正积分值，以及负积分放大器，其接收AC信号的负幅度并产生负积分值 整合期。 电路还包括至少一个模数转换器，其接收正积分值和负积分值。

    Fire detection system
    9.
    发明授权
    Fire detection system 有权

    公开(公告)号：US12211370B2

    公开(公告)日：2025-01-28

    申请号：US16699677

    申请日：2019-12-01

    Applicant: Analog Devices, Inc.

    Inventor： Shrenik Deliwala

    IPC: G08B29/24 ,  G01N21/61 ,  G01N21/94 ,  G08B17/107 ,  G08B17/12 ,  G01J5/00 ,  G01N27/22 ,  G01N27/26

    Abstract: Comprehensive system for fire detection and implementing thereof. The disclosed system combines and optimizes optical, electrical, and sensor sub-systems to provide the functionality demanded by the market. While many of the individual functions exist separately, none of the existing products combine elements from different sub-systems to provide a much higher level of functionality. The present disclosure shows how to build a very compact housing around the smoke detector 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.

Patent Agency Ranking