公开(公告)号：US20230013695A1

公开(公告)日：2023-01-19

申请号：US17376850

申请日：2021-07-15

Applicant: Analog Devices, Inc.

Inventor： Andrew Joseph Thomas ,  Joseph L. Sousa ,  Micah Galletta O'Halloran ,  Alex Robert Sloboda

IPC: G01R19/00 ,  G01R19/165 ,  G01R19/22

Abstract: A measurement circuit comprises an input terminal to receive a current signal, a first circuit branch coupled to the first terminal and including one or more circuit elements to receive a portion of the current signal, a second circuit branch coupled to the first terminal and including one or more additional circuit elements to receive another portion of the current signal, a nonlinear circuit element coupling the first circuit branch to the second circuit branch, and a quantization circuit configured to produce an input current measurement of current in the first and second circuit branches, and to include current in the second circuit branch in the input current measurement according to a magnitude of the input current signal.

公开(公告)号：US20230006610A1

公开(公告)日：2023-01-05

申请号：US17652462

申请日：2022-02-24

Applicant: Analog Devices, Inc.

Inventor： Keith E. Benson

IPC: H03F1/30 ,  G01K7/16 ,  H03F3/213

Abstract: Thermal temperature sensors for power amplifiers are provided herein. In certain implementations, a semiconductor die includes a compound semiconductor substrate, and a power amplifier including a plurality of field-effect transistors (FETs) configured to amplify a radio frequency (RF) signal. The plurality of FETs are arranged on the compound semiconductor substrate as a transistor array. The semiconductor die further includes a semiconductor resistor configured to generate a signal indicative of a temperature of the transistor array. The semiconductor resistor is located adjacent to one end of the transistor array.

公开(公告)号：US20220390483A1

公开(公告)日：2022-12-08

申请号：US17342484

申请日：2021-06-08

Applicant: Analog Devices, Inc.

Inventor： Jianglong Zhang ,  Xin Zhang

IPC: G01P15/125 ,  G01P15/18 ,  B81B3/00

Abstract: Disclosed herein are aspects of a multiple-mass, multi-axis microelectromechanical systems (MEMS) accelerometer sensor device with a fully differential sensing design that applies differential drive signals to movable proof masses and senses differential motion signals at sense fingers coupled to a substrate. In some embodiments, capacitance signals from different sense fingers are combined together at a sensing signal node disposed on the substrate supporting the proof masses. In some embodiments, a split shield may be provided, with a first shield underneath a proof mass coupled to the same drive signal applied to the proof mass and a second shield electrically isolated from the first shield provided underneath the sense fingers and biased with a constant voltage to provide shielding for the sense fingers.

公开(公告)号：US20220376719A1

公开(公告)日：2022-11-24

申请号：US17732809

申请日：2022-04-29

Applicant: Analog Devices, Inc.

Inventor： Tao YU ,  Cristobal ALESSANDRI ,  Frank YAUL ,  Wenjie LU ,  Shyam Chandrasekhar NAMBIAR

IPC: H04B1/04 ,  G06N3/08 ,  G06N3/04

Abstract: Systems, devices, and methods related to using model architecture search for hardware configuration are provided. A method includes receiving, by a computer-implemented system, information associated with a pool of processing units; receiving, by the computer-implemented system, a data set associated with a data transformation operation; training, based on the data set and the information associated with the pool of processing units, a parameterized model associated with the data transformation operation, where the training includes updating at least one parameter of the parameterized model associated with configuring at least a subset of the processing units in the pool; and outputting, based on the training, one or more configurations for at least the subset of the processing units in the pool.

公开(公告)号：US11503145B2

公开(公告)日：2022-11-15

申请号：US16305019

申请日：2017-05-25

Applicant: Analog Devices, Inc.

Inventor： J. Brian Harrington ,  David F. Bolognia ,  Alain Valentin Guery ,  Vikram Venkatadri ,  Hari Chauhan ,  Evgueni Ivanov ,  Carlos R. Calvo

IPC: H04M1/21 ,  H04B10/40 ,  H04M1/72403 ,  H04M1/72412

Abstract: According to one example configuration, an apparatus enhances functionality of a mobile communication device. The apparatus includes an encasement in which to retain the mobile communication device and supplemental circuitry. The supplemental circuitry is operable to: i) control an optical transmitter in the supplemental circuitry to irradiate matter under test, ii) monitor attributes of an optical signal reflected off the matter under test and received by the optical receiver; and iii) communicate the attributes of the optical signal from the supplemental circuitry to the mobile communication device over a communication link. The supplemental circuitry optionally includes multiple electrodes to further monitor attributes of the matter under test.

公开(公告)号：US11499995B2

公开(公告)日：2022-11-15

申请号：US17079845

申请日：2020-10-26

Applicant: Analog Devices, Inc.

Inventor： Hio Leong Chao

IPC: G01R27/08 ,  G01R19/00 ,  G01R19/22 ,  H03M1/12 ,  G01R29/26 ,  G01R31/00 ,  G01R31/40

Abstract: A current sensor circuit comprises multiple resistive circuit elements of different values of electrical resistance arranged between at least one input terminal of the current sensor circuit and an output terminal; a first plurality of switching circuits coupled between the input terminal and the resistive circuit elements, wherein each switching circuit of the first plurality of switching circuits includes a pair of transistors connected in series; at least one drive amplifier including an output and an input connected to the output terminal; and a second plurality of switching circuits, each switching circuit including a first switch terminal coupled to the at least one drive amplifier output and a second switch terminal coupled to a common connection of a pair of transistors of the first plurality of switching circuits.

公开(公告)号：US20220338818A1

公开(公告)日：2022-10-27

申请号：US17723299

申请日：2022-04-18

Applicant: Analog Devices, Inc.

Inventor： Venugopal GOPINATHAN ,  Tony J. AKL

IPC: A61B5/00 ,  A61B5/0205 ,  A61B5/021 ,  A61B5/0295

Abstract: The present disclosure describes a system for detecting abnormal blood pressure or blood volume in a user, the system comprising a processing system; a pulse transit time (PTT) detection system for providing a PTT signal indicative of a PTT of the user to the processing system, wherein PTT of the user is used as a surrogate for a blood pressure (BP) of the user; and an electrodermal activity (EDA) detection system for providing an EDA signal indicative of an EDA of the user to the processing system; wherein the processing system processes the PTT signal and the EDA signal to determine an index indicative of an abnormal blood pressure or blood volume of the user.

公开(公告)号：US20220303145A1

公开(公告)日：2022-09-22

申请号：US17205561

申请日：2021-03-18

Applicant: Analog Devices, Inc.

Inventor： Chiraag JUVEKAR ,  Abhijit KUVAR

IPC: H04L9/32

Abstract: A method and electronic device for configuring a PUF, wherein: PUF cells are configured to use a signal path; determining a winner of racing pairs of PUF cells in a first round and in a second round wherein winners of the first round are raced; the first and second round are repeated for different signal paths; determining, for each signal path, a comparison metric, wherein the comparison metric is based on the count of the outputs of the PUF cells having the signal path in common; determining an optimum signal path for the PUF from the respective comparison metrics; and configuring the PUF to use the optimum signal path.

公开(公告)号：US20220294672A1

公开(公告)日：2022-09-15

申请号：US17334445

申请日：2021-05-28

Applicant: Analog Devices, Inc.

Inventor： Eric C. Gaalaas ,  Dongwan Ha ,  Jason J. Ziomek ,  Bikiran Goswami ,  Brian Jadus

IPC: H04L25/02

Abstract: Methods and apparatus are disclosed for communicating multiple logic states across a digital isolator. The digital isolator is a universal serial bus (USB) isolator in some embodiments. The digital isolator includes one or more single-bit data channels. Three or more logic states of information are transmitted across the single-bit data channel(s). The logic states are distinguished by a pulse sequence, and in particular a number of edges of the pulse sequence and a final value or final edge of the pulse sequence.

公开(公告)号：US11444669B2

公开(公告)日：2022-09-13

申请号：US17371509

申请日：2021-07-09

Applicant: Analog Devices, Inc.

Inventor： Antonio Montalvo ,  David J. McLaurin

IPC: H04B7/06

Abstract: Embodiments of the present disclosure relate to cellular technology applications of beamforming performed in the digital domain. In one aspect, an RF system for performing digital beamforming on a per-carrier basis is disclosed, where different phase and/or amplitude adjustments are applied to signals of different frequency ranges (i.e., to different carrier signals). In another aspect, an RF system for performing digital beamforming on a per-antenna basis is disclosed, where different phase and/or amplitude adjustments are applied to signals transmitted from or received by different antennas. In some embodiments, an RF system may be configured to implement both digital beamforming on a per-carrier basis and digital beamforming on a per-antenna basis. The RF systems disclosed herein allow implementing programmable beamforming in the digital domain in a manner that is significantly less complex than conventional implementations.