公开(公告)号：US20220159118A1

公开(公告)日：2022-05-19

申请号：US17554318

申请日：2021-12-17

Applicant: Analog Devices, Inc.

Inventor： Isaac Chase NOVET

IPC: H04M1/72454

Abstract: Apparatus and methods are disclosed related to managing characteristics of a mobile device based upon capacitive detection of materials proximate the mobile device, a capacitive gesture system that can allow the same gestures be used in arbitrary locations within range of a mobile device. One such method includes receiving a first capacitive sensor measurement with a first capacitive sensor of the mobile device. The method further includes determining a value indicative of a material adjacent to the mobile device based on a correspondence between the first capacitive sensor measurement and stored values corresponding to different materials. The method further includes sending instructions to adjust a characteristic of the mobile device based on the determined value indicative of the material adjacent to the mobile device. In certain examples, gesture sensing can be performed using capacitive measurements from the capacitive sensors.

公开(公告)号：US20240319242A1

公开(公告)日：2024-09-26

申请号：US18672591

申请日：2024-05-23

Applicant: Analog Devices, Inc.

Inventor： Isaac Chase NOVET ,  Steven J. DECKER

IPC: G01R27/26

CPC classification number: G01R27/2629 ,  G01R27/2605

Abstract: An impedance sensing circuit includes three impedance elements and a sensing element arranged in a bridge configuration. A first input terminal is coupled to two of the impedance elements to apply a stimulus signal. In a mutual-sensing mode, a second input terminal is coupled to the third impedance element and the sensing impedance element to apply an opposite phase stimulus signal. The impedance sensing circuit may be configured in a self-sensing mode, in which the opposite phase stimulus signal is decoupled from the third impedance element and the sensing impedance element. At least one of the impedance elements is variable and may be adjusted to balance an offset impedance load on the sensing element.

公开(公告)号：US20170249282A1

公开(公告)日：2017-08-31

申请号：US15517266

申请日：2015-10-06

Applicant: Analog Devices, Inc.

Inventor： Isaac Chase NOVET

IPC: G06F15/80 ,  G06F9/30 ,  G06F1/32

CPC classification number: G06F15/80 ,  G06F1/32 ,  G06F9/30 ,  H04W52/0287 ,  Y02D70/00 ,  Y02D70/164 ,  Y02D70/26

Abstract: A scaled and configurable pre-processor array can allow minimal digital activity while maintaining hard real time performance. The pre-processor array is specially designed to process real-time sensor data. The interconnected processing units of the array can drastically reduce context swaps, memory accesses, main processor input/output accesses, and real time event management overhead.

公开(公告)号：US20220276290A1

公开(公告)日：2022-09-01

申请号：US17746577

申请日：2022-05-17

Applicant: Analog Devices, Inc.

Inventor： Isaac Chase NOVET ,  Steven J. DECKER

IPC: G01R27/26

Abstract: An impedance sensing circuit includes three impedance elements and a sensing element arranged in a bridge configuration. A first input terminal is coupled to two of the impedance elements to apply a stimulus signal. In a mutual-sensing mode, a second input terminal is coupled to the third impedance element and the sensing impedance element to apply an opposite phase stimulus signal. The impedance sensing circuit may be configured in a self-sensing mode, in which the opposite phase stimulus signal is decoupled from the third impedance element and the sensing impedance element. At least one of the impedance elements is variable and may be adjusted to balance an offset impedance load on the sensing element.

公开(公告)号：US20210123902A1

公开(公告)日：2021-04-29

申请号：US16757202

申请日：2018-05-04

Applicant: Analog Devices, Inc.

Inventor： Thomas G. O'DWYER ,  Gaurav VOHRA ,  Xin ZHANG ,  YounJae KOOK ,  Isaac Chase NOVET ,  Venugopal GOPINATHAN

IPC: G01N33/487 ,  G01N33/49 ,  G01N33/493 ,  G01N27/02

Abstract: An impedance measurement system for detecting an analyte in a sample is disclosed. The system includes first, second, and third electrodes, wherein at least a portion of the third electrode is positioned between the first and second electrodes, means for generating an electromagnetic field between the first and second electrodes, means for electrically controlling the third electrode, wherein the third electrode modifies the electromagnetic field, and a processor for detecting a presence of the analyte in the sample, based at least in part on a property of the electromagnetic field.

公开(公告)号：US20170311090A1

公开(公告)日：2017-10-26

申请号：US15523631

申请日：2015-11-09

Applicant: Analog Devices, Inc.

Inventor： David WINGATE ,  Isaac Chase NOVET

IPC: H04R19/04 ,  H04R3/06

Abstract: Sound waves cause pressure changes in the air, and the pressure changes cause changes in the dielectric constant of air. Capacitive sensor measurements indicative of the changes in the dielectric constant of air can be processed to extract features associated with sound waves in the air. The features can include sound pressure levels represented and recordable as audio samples. Furthermore, the features can help identify types of sounds, determine direction of travel of the sound waves, and/or determine the source location of the audio. Instead of relying on movement of a mechanical member to transduce sound waves through a port into an electrical signal, an improved microphone uses capacitive sensing to directly sample and sense static pressure as well as dynamic pressure or pressure changes in the air to derive audio samples. The resulting microphone avoids disadvantages of the conventional microphone having the moving mechanical member and port.