公开(公告)号：US11863165B2

公开(公告)日：2024-01-02

申请号：US17503883

申请日：2021-10-18

Applicant: Analog Devices, Inc.

Inventor： Lawrence A. Singer

IPC: H03K17/042 ,  H03K19/017 ,  H03M1/06 ,  H03M1/12 ,  H03K17/00 ,  H03K19/0185 ,  H03K17/0412 ,  H03K17/06 ,  H03M1/18

CPC classification number: H03K17/04206 ,  H03K17/005 ,  H03K17/04123 ,  H03K17/063 ,  H03K19/017 ,  H03K19/018521 ,  H03M1/0607 ,  H03M1/1245 ,  H03M1/183

Abstract: The trend in wireless communication receivers is to capture more and more bandwidth to support higher throughput, and to directly sample the radio frequency (RF) signal to enable re-configurability and lower cost. Other applications like instrumentation also demand the ability to digitize wide bandwidth RF signals. These applications benefit from input circuitry which can perform well with high speed, wide bandwidth RF signals. An input buffer and bootstrapped switch are designed to service such applications, and can be implemented in 28 nm complementary metal-oxide (CMOS) technology.

公开(公告)号：US20230412175A1

公开(公告)日：2023-12-21

申请号：US18247691

申请日：2021-12-07

Applicant: Analog Devices, Inc.

Inventor： Hyman Shanan ,  John Kenney

IPC: H03L7/099 ,  H03L1/02 ,  H03L7/189 ,  H04B1/16

CPC classification number: H03L7/099 ,  H03L1/02 ,  H03L7/189 ,  H04B1/16 ,  H03L2207/06

Abstract: Apparatus and methods for control and calibration of external oscillators are provided herein. In certain embodiments, an electronic oscillator system includes a semiconductor die and a controllable oscillator that is external to the semiconductor die. The oscillation frequency of the controllable oscillator is tuned by a first varactor and a second varactor. The semiconductor die includes a phase-locked loop (PLL) that provides fine tuning to the controllable oscillator by controlling the first varactor, and a calibration circuit that provides coarse tuning to the controllable oscillator by controlling the second varactor.

公开(公告)号：US20230398290A1

公开(公告)日：2023-12-14

申请号：US18034623

申请日：2021-03-11

Applicant: Analog Devices, Inc.

Inventor： Alan DUGAS

IPC: A61M5/168 ,  A61M5/145

CPC classification number: A61M5/16813 ,  A61M5/1452 ,  A61M5/16854 ,  A61M2205/3327 ,  A61M2205/3379 ,  A61M2205/3368 ,  A61M2005/16863 ,  A61M2205/15 ,  A61M2205/60 ,  A61M2205/18

Abstract: Processes for using a capacitive sensor to control drug delivery are described. The capacitive sensor measures a capacitance across a pair of electrodes arranged along either side of a container. The container includes an air chamber, a fluid chamber, and a stopper separating the air chamber from the fluid chamber. A volume of drug in the fluid chamber may be determined based on the measured capacitance. The volume is compared to a target volume, and if the volume in the fluid chamber is greater than the target volume, a stopper actuator expels a portion of the drug from the fluid chamber.

公开(公告)号：US11837403B2

公开(公告)日：2023-12-05

申请号：US15931987

申请日：2020-05-14

Applicant: Massachusetts Institute of Technology ,  Analog Devices, Inc.

Inventor： Karen K. Gleason ,  Brian L. Wardle ,  Estelle Cohen ,  Yue Zhou ,  Xiaoxue Wang ,  Yosef Stein

IPC: H01G11/28 ,  H01M4/36 ,  H01M4/583 ,  H01M4/62 ,  H01G11/68 ,  H01G11/36 ,  H01G11/56 ,  H01G11/70 ,  H01M4/133

CPC classification number: H01G11/28 ,  H01G11/36 ,  H01G11/56 ,  H01G11/68 ,  H01G11/70 ,  H01M4/133 ,  H01M4/366 ,  H01M4/583 ,  H01M4/624

Abstract: Systems and methods involving nanomaterial-based electrodes, such as supercapacitor and battery electrodes that can be flexible, are described.

公开(公告)号：US11829864B2

公开(公告)日：2023-11-28

申请号：US17983320

申请日：2022-11-08

Applicant: Analog Devices, Inc.

Inventor： Sung Ung Kwak ,  Robert Michael Muchsel

IPC: G06N3/063 ,  G06F7/496 ,  G06F7/501 ,  G06F9/30 ,  G06F17/16 ,  G06G7/16 ,  G06N3/065

CPC classification number: G06N3/063 ,  G06F7/496 ,  G06F7/501 ,  G06F9/3001 ,  G06F9/30036 ,  G06F17/16 ,  G06G7/16 ,  G06N3/065

Abstract: An energy-efficient multiplication circuit uses analog multipliers and adders to reduce the distance that data has to move and the number of times that the data has to be moved when performing matrix multiplications in the analog domain. The multiplication circuit is tailored to bitwise multiply the innermost product of a rearranged matrix formula generate a matrix multiplication result in form of a current that is then digitized for further processing.

公开(公告)号：US11824451B2

公开(公告)日：2023-11-21

申请号：US17402331

申请日：2021-08-13

Applicant: Analog Devices, Inc.

Inventor： Dongwon Kwon ,  Min Kyu Song ,  Jindong Zhang ,  Min Chen

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/1586 ,  H02M1/0009 ,  H02M3/1582 ,  H02M3/1584

Abstract: A multi-phase buck-boost converter circuit comprises a buck circuit stage, a boost circuit stage, and a control circuit. The buck circuit stage is connected to an input of the buck-boost converter circuit to receive an input voltage. The boost circuit stage includes multiple boost circuits connected in parallel. The boost circuit stage is coupled to the buck circuit stage and an output of the multi-phase buck-boost converter circuit. Each boost circuit includes an inductor coupled to the buck circuit stage. The control circuit operates the multiple boost circuit stages out of phase with respect to each other in a boost mode, operates the buck circuit stage in a buck mode, and operates the multiple boost circuit stages out of phase with respect to each other and operates the buck circuit stage in a buck-boost mode.

公开(公告)号：US20230349807A1

公开(公告)日：2023-11-02

申请号：US18345335

申请日：2023-06-30

Applicant: Analog Devices, Inc.

Inventor： Shrenik DELIWALA

IPC: G01N15/06 ,  G08B17/107 ,  G08B17/113

CPC classification number: G01N15/06 ,  G08B17/107 ,  G08B17/113 ,  G01N2015/0046

Abstract: Herein disclosed in some embodiments is a fault detector for power amplifiers of a communication system. The fault detector can detect a portion of the power amplifiers that are in fault condition and can prevent or limit current flow to the power amplifiers in fault condition while allowing the rest of the power amplifiers to operate normally. The fault detector can further indicate which power amplifiers are in fault condition and/or the cause for the power amplifiers to be in fault condition. Based on the indication, a controller can direct communications away from the power amplifiers in fault condition and/or perform operations to correct the fault condition.

公开(公告)号：US11805396B2

公开(公告)日：2023-10-31

申请号：US16831741

申请日：2020-03-26

Applicant: Analog Devices, Inc.

Inventor： Eugene Oh Hwang ,  Tao Yu ,  Phillip Nadeau ,  Michael Judy ,  Rui Zhang

IPC: H04W24/02 ,  H04W4/38 ,  H04W24/08

CPC classification number: H04W4/38 ,  H04W24/02 ,  H04W24/08

Abstract: Described herein are techniques for improving the signal-to-noise ratio of a wireless sensor platform. The device that interrogates a wireless sensor node (an interrogator) may be configured to determine the quantity to be measured by extracting information from multiple echoes produced in response to multiple interrogation pulses or produced due to multi-path propagation. Although different echoes may have been transformed to different extents, the echoes may share unique characteristics that are specific to the wireless sensor node that produced them. Accordingly, the SNR may be improved by keeping only portions of the received signal that exhibit such characteristics. The SNR may be further improved by summing the echoes together. In some embodiments, the echoes may be summed together in a coherent fashion, thereby producing an echo having an amplitude greater than the amplitude of each of the received echoes.

公开(公告)号：US11796445B2

公开(公告)日：2023-10-24

申请号：US16825339

申请日：2020-03-20

Applicant: Analog Devices, Inc.

Inventor： Shrenik Deliwala

IPC: G01N15/14 ,  G08B17/107

CPC classification number: G01N15/1434 ,  G01N15/1429 ,  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.

公开(公告)号：US20230335328A1

公开(公告)日：2023-10-19

申请号：US17723260

申请日：2022-04-18

Applicant: Analog Devices, Inc.

Inventor： Steve Hawley ,  George Anthony Serpa ,  John David Brazzle ,  Jim Yang

IPC: H01F27/26 ,  H01F41/02

CPC classification number: H01F27/26 ,  H01F41/0206

Abstract: A low-profile coupled inductor is disclosed to provide compact and high performance magnetic coupling. The low-profile coupled inductor has an asymmetrical geometry, having a pair of complementary ferrite cores supporting a pair of conducting strips in an alternating serpentine pattern. One or more core gaps exist between the cores to create a strong flux coupling between adjacent magnetic fields of either conducting strip. The alternating serpentine conductors and core gaps serve to increase energy transfer between the magnetic fields and improve the overall power density of the low-profile coupled inductor.