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1. 外观设计

USD913135S1 Smoke chamber blocking ensemble 有权
公开(公告)号：USD913135S1
公开(公告)日：2021-03-16
申请号：US29691393
申请日：2019-05-15
申请人： ANALOG DEVICES, INC.
设计人： Shrenik Deliwala

2. 发明授权

US10921367B2 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
申请人： Analog Devices, Inc.
发明人： Shrenik Deliwala
IPC分类号： G01N15/06 , G01R31/28 , G01N15/00
摘要： 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.

3. 发明授权

US10809173B2 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
申请人： Analog Devices, Inc.
发明人： Shrenik Deliwala
IPC分类号： G01N15/06 , G08B17/107 , G08B17/103
摘要： 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.

4. 发明申请

US20200249158A1 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
申请人： Analog Devices, Inc.
发明人： Shrenik Deliwala
IPC分类号： G01N21/53 , G08B17/107
摘要： 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.

5. 发明申请

US20160351666A1 Gallium Nitride Apparatus with a Trap Rich Region 有权
标题翻译：具有陷阱丰富区域的氮化镓设备
公开(公告)号：US20160351666A1
公开(公告)日：2016-12-01
申请号：US15165122
申请日：2016-05-26
申请人： Analog Devices, Inc.
发明人： Shrenik Deliwala , James Fiorenza , Donghyun Jin
IPC分类号： H01L29/15 , H01L29/205 , H01L21/02 , H01L29/20
CPC分类号： H01L29/155 , H01L21/02381 , H01L21/02458 , H01L21/02507 , H01L21/0254 , H01L21/02686 , H01L21/3221 , H01L21/324 , H01L29/2003 , H01L29/205 , H01L29/7787
摘要： A method cold-melts a high conductivity region between a high-resistivity silicon substrate and a gallium-nitride layer to form a trap rich region that substantially immobilizes charge carriers in that region. Such a process should substantially mitigate the parasitic impact of that region on circuits formed at least in part by the gallium-nitride layer.
摘要翻译：一种方法在高电阻率硅衬底和氮化镓层之间冷熔融高导电率区域，以形成基本上固定该区域中的电荷载流子的富集阱区域。这种过程应该基本上减轻该区域对至少部分由氮化镓层形成的电路的寄生冲击。

6. 发明申请

US20140323844A1 CIRCUIT ARCHITECTURE FOR PHOTODIODES 有权
标题翻译：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
申请人： ANALOG DEVICES, INC.
发明人： Shrenik Deliwala , Steven J. Decker , Dan M. Weinberg
IPC分类号： H01L31/02 , A61B5/00
CPC分类号： H01L31/02016 , A61B5/0059 , A61B5/02433 , A61B5/7225 , H01L31/02019 , H03F3/45 , H04B2210/003
摘要： 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.
摘要翻译：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。

7. 发明授权

US11511037B2 Systems and methods for measuring needle depth 有权
公开(公告)号：US11511037B2
公开(公告)日：2022-11-29
申请号：US16434761
申请日：2019-06-07
申请人： Analog Devices, Inc.
发明人： Shrenik Deliwala
IPC分类号： A61M5/168 , A61B5/15 , A61B90/00 , A61B5/00 , A61B5/0531 , A61M5/142
摘要： Systems and methods are provided for measuring depth, position, and/or angle of a cannula in a medical drug delivery device. In particular, a drug delivery device having a cannula is positioned adjacent to tissue, a voltage pulse is provided to the cannula, a charge is measured at an electrode in the drug delivery device, and the depth of penetration of the cannula is determined based in part on the charge at the first electrode. Systems and methods described herein can be used to determine subcutaneous insertion depth in a wearable bolus injector. In some implementations, insertion depth determination is achieved through capacitive sensors which measure needle depth in a drug delivery device.

8. 外观设计

USD920825S1 Smoke detector chamber 有权
公开(公告)号：USD920825S1
公开(公告)日：2021-06-01
申请号：US29692091
申请日：2019-05-22
申请人： Analog Devices, Inc.
设计人： Jiawen Bai , Ryan Frazier , Ying Zhao , Shrenik Deliwala

9. 发明授权

US10969254B2 Fiber Bragg grating interrogation and sensing system and methods comprising a filter centered at a first wavelength 有权
公开(公告)号：US10969254B2
公开(公告)日：2021-04-06
申请号：US16880109
申请日：2020-05-21
申请人： Analog Devices, Inc.
发明人： Shrenik Deliwala
IPC分类号： G01D5/353 , G02B6/42 , G02B6/02 , H01L31/167 , G02B6/293
摘要： Fiber Bragg grating interrogation and sensing used for strain and temperature measurements. A simple, broadband light source is used to interrogate one or more fiber Bragg grating (FBG). Specifically, a packaged LED is coupled to fiber, the light therefrom is reflected off a uniform FBG. The reflected light is subsequently analyzed using a filter and a plurality of Si photodetectors. In particular, the filter is a chirped FBG or an optically coated filter, in accordance with some embodiments. Measurement analysis is performed by ratio of intensities at the plurality of detectors, at least in part.

10. 发明申请

US20200161502A1 SUPERLATTICE PHOTODETECTOR/LIGHT EMITTING DIODE 审中-公开
公开(公告)号：US20200161502A1
公开(公告)日：2020-05-21
申请号：US16679549
申请日：2019-11-11
申请人： Analog Devices, Inc.
发明人： Shrenik Deliwala , Ryan Michael Iutzi
IPC分类号： H01L33/06 , H01L33/58 , H01L33/64 , H01L31/0352 , H01L31/0232 , H01L31/024
摘要： A device emitting mid-infrared light that comprises a semiconductor substrate of GaSb or closely related material. The device can also comprise epitaxial heterostructures of InAs, GaAs, AlSb, and related alloys forming light emitting structures cascaded by tunnel junctions. Further, the device can comprise light emission from the front, epitaxial side of the substrate.

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