Patents Assigned to Analog Devices
  • Publication number: 20250146153
    Abstract: Described herein are electrochemical impedance spectroscopy (EIS) systems and methods that facilitate the allocation of a single stimulus generator across a number of electrolyzer stacks, each comprising a set of electrochemical cells. By distributing a stimulus signal, impedance data of the cells in each electrolyzer stack may be measured, e.g., to evaluate their condition or the condition of the stack without the need for separate stimulus blocks for each electrolyzer stack. In various embodiments, sharing the stimulus generator is enabled by sequentially directing stimulus signals to different stacks. The resulting response signals, indicative of the impedance of cells or entire stacks, are processed locally at each respective electrolyzer stack. Advantageously, the stimulus generator may be remotely located, e.g., at a location that is subject to less stringent safety measures, thereby lowering both equipment and operational expenses.
    Type: Application
    Filed: November 6, 2023
    Publication date: May 8, 2025
    Applicant: ANALOG DEVICES, INC.
    Inventors: Radhika Marathe, Atulya Yellepeddi
  • Patent number: 12294288
    Abstract: Techniques, methods, circuits, and systems are provided for providing stabilization for a circuit. One example system includes a switching converter coupled to a power source; a low-pass filter coupled to a load device; a direct current (DC) path; and an alternating current (AC) path, where the DC path and the AC path are provided between the switching converter and the low-pass filter, and where the AC path provides a non-phased information signal to be used to compensate for a phase delay occurring in the DC path. In a more specific implementation, the DC path can be configured to provide control, at low frequency, for an output to the load device. In addition, an error amplifier can be to the DC path and the AC path, where the low-pass filter and the error amplifier can be configured to determine a switchover between the AC path and DC path.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: May 6, 2025
    Assignee: Analog Devices, Inc.
    Inventor: Noe Quintero
  • Patent number: 12294380
    Abstract: A data channel includes a power constrained first channel portion to receive energy from a limited power source and a non-power constrained second channel portion to receive energy from a different power source than the first channel portion. The first channel portion includes an ADC circuit to output an ADC data sample, a first transmitter circuit configured to serially transmit data that includes ON bits and OFF bits, and logic circuitry configured to derive transmit data from the ADC data sample. The transmitter circuit uses more energy transmitting the ON bits than the OFF bits, and the derived transmit data has a reduced number of the ON bits from the ADC data sample. The second channel portion includes a first receiver circuit to receive the derived transmit data from the first transmitter circuit of the first channel portion.
    Type: Grant
    Filed: April 4, 2023
    Date of Patent: May 6, 2025
    Assignee: Analog Devices International Unlimited Company
    Inventors: Andreas Koch, George Pieter Reitsma
  • Patent number: 12294309
    Abstract: A multi-phase regulator circuit includes one or more switching converter circuits. Each switching converter circuit includes a transformer including a primary winding and a multi-segment secondary winding, a primary side switch circuit configured to connect the primary winding to an input of the multi-phase regulator circuit, and multiple secondary side circuits including multiple coupled-inductor circuits. Each coupled-inductor circuit includes a first winding magnetically coupled to a second winding. Each segment of the transformer multi-segment secondary winding is operatively coupled to the first winding of a coupled-inductor circuit and each of the first windings is connected to an output of the multi-phase regulator circuit.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: May 6, 2025
    Assignee: Analog Devices, Inc.
    Inventors: Xingxuan Huang, Chuan Shi, Xinyu Liang, Jonathan Paolucci
  • Patent number: 12294664
    Abstract: The present disclosure relates to configuring at least one pair of devices in a physical unclonable function (PUF) apparatus and reading out at least one pair of devices for determining a persistent random PUF output. The pair of devices may be readout by measuring a physical difference between the devices/components caused by random manufacturing differences, which may then be used to determine a persistence random PUF output. Configuring the pair of devices includes measuring the random manufacturing difference and, based on that measurement, setting a readout condition for the pair of devices, which dictates aspects of the readout process that should be used for that pair of devices. Each time the pair of devices is readout in the future, it may be readout in accordance with the condition that was set at configuration.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: May 6, 2025
    Assignee: Analog Devices International Unlimited Company
    Inventors: William Michael James Holland, George Redfield Spalding, Jr., Jonathan Ephraim David Hurwitz
  • Patent number: 12287437
    Abstract: One embodiment is a method for counting charge events detected by a pixel in a photon-counting computed tomography (PCCT) scanning system comprising a plurality of discriminators, wherein each discriminator is associated with a respective one of a plurality of threshold voltage levels. The method includes detecting a signal output from one of the discriminators; incrementing a quantitative count corresponding to the threshold voltage level associated with the one of the discriminators if the detected discriminator output signal meets a first condition; and incrementing a qualitative count if the detected discriminator output signal meets at least one second condition.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: April 29, 2025
    Assignee: ANALOG DEVICES, INC.
    Inventors: Patrick S. Riehl, Sunrita Poddar
  • Patent number: 12289387
    Abstract: Systems and methods are provided for synchronizing a lower-power idle state. The systems and methods perform operations comprising: initializing, by a master physical layer (PHY) controller, a connection over a network with a slave PHY controller; during initialization, synchronizing a low power idle (LPI) timer of the master PHY controller with a LPI timer of the slave PHY controller; establishing an offset between the LPI timer of the master PHY controller and the LPI timer of the slave PHY controller; and after synchronizing the timer of the master PHY controller with the LPI timer of the slave PHY controller, establishing a link between the master PHY controller and the slave PHY controller to enable the master PHY controller and the slave PHY controller to exchange data.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: April 29, 2025
    Assignee: Analog Devices International Unlimited Company
    Inventor: Niall Fitzgerald
  • Patent number: 12283555
    Abstract: A package is disclosed. The package includes a carrier that comprises a first conductive layer on a first side and a second conductive layer on a second side opposite the first side. The first conductive layer comprises wire bonding pads. The package also includes a semiconductor die that is flip chip mounted on the first side of the carrier.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: April 22, 2025
    Assignee: Analog Devices International Unlimited Company
    Inventors: Bilge Bayrakci, Abdullah Celik, Winslow Round, Santosh Anil Kudtarkar, Yusuf Atesal, Turusan Kolcuoglu
  • Patent number: 12282059
    Abstract: The disclosed technology generally relates to integrated circuit devices with wear out monitoring capability. An integrated circuit device includes a wear-out monitor device configured to record an indication of wear-out of a core circuit separated from the wear-out monitor device, wherein the indication is associated with localized diffusion of a diffusant within the wear-out monitor device in response to a wear-out stress that causes the wear-out of the core circuit.
    Type: Grant
    Filed: May 16, 2024
    Date of Patent: April 22, 2025
    Assignee: Analog Devices International Unlimited Company
    Inventors: Edward John Coyne, Alan J. O'Donnell, Shaun Bradley, David Aherne, David Boland, Thomas G. O'Dwyer, Colm Patrick Heffernan, Kevin B. Manning, Mark Forde, David J. Clarke, Michael A. Looby
  • Patent number: 12282047
    Abstract: A voltage monitor circuit that signals if an input voltage is above or below an internally established reference level proportional to the bandgap voltage of silicon. The voltage monitor circuit mitigates main error sources generally associated with bandgap reference generation such that high accuracy and good performance may be achieved at low power cost. The techniques allow voltage monitors (e.g., brown-out and power on reset (POR) detectors) to be implemented with higher accuracy, lower power consumption, smaller area cost, and support to lower supply voltage than other solutions.
    Type: Grant
    Filed: March 3, 2023
    Date of Patent: April 22, 2025
    Assignee: Analog Devices International Unlimited Company
    Inventors: Ricardo Pureza Coimbra, Mateus Ribeiro Vanzella
  • Patent number: 12282749
    Abstract: An integrated circuit comprising a plurality MAC pipelines wherein each MAC pipeline includes: (i) a plurality of MACs connected in series and (ii) a plurality of data paths including an accumulation data path, wherein each MAC includes a multiplier to multiply to generate product data and an accumulator to generate sum data. The integrated circuit further comprises a plurality of control/configure circuits, wherein each control/configure circuit connects directly to and is associated with a MAC pipeline, wherein each control/configure circuit includes an accumulation data path which is configurable to directly connect to the accumulation data path of the MAC pipeline to form an accumulation ring when the control/configure circuit is configured in an accumulation mode, and an output data path configurable to directly connect to the output of the accumulation data path of the MAC pipeline when the control/configure circuit is configured in an output data mode.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: April 22, 2025
    Assignee: Analog Devices, Inc.
    Inventors: Frederick A. Ware, Cheng C. Wang
  • Patent number: 12279891
    Abstract: A heart monitoring system includes at least two sensors embedded in a seat, such as a driver's seat in a vehicle. One of the sensors obtains a phonocardiogram (PCG) of the driver's heart in addition to noise. Another sensor is a reference sensor that obtains a noise signal, but does not include the PCG signal. Processing circuitry receives the heart signal with the noise and the reference noise signal, and performs adaptive filtering to remove the noise from the heart signal. Further analysis detects a heart rate or other heart measurements in the heart signal, and may output an alert if a heart condition is detected.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: April 22, 2025
    Assignee: ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANY
    Inventors: Sudheer Babu, Harsh Bolia
  • Patent number: 12282748
    Abstract: An integrated circuit including a multiplier-accumulator circuit pipeline including a plurality of MAC circuits. Each MAC circuit includes: (A) a multiplier circuit to multiply first input data and filter weight data to generate and output first product data having a floating point data format, and (B) a coarse floating point accumulator circuit including: (1) an alignment shift circuit to shift at least one field of the first product data and generate shifted first product data, and (2) fixed point addition circuitry, coupled to the alignment shift circuit, to add second input data and the shifted first product data using the fixed point addition circuitry. The plurality of MAC circuits of the multiplier-accumulator circuit execution pipeline, in operation, each perform a plurality of multiply operations and accumulate operations to process the first input data and generate processed data therefrom.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: April 22, 2025
    Assignee: Analog Devices, Inc.
    Inventors: Frederick A. Ware, Cheng C. Wang
  • Patent number: 12278551
    Abstract: Several current sensing techniques are described that may be used to obtain an accurate current signal, which may help to achieve the best performance with a trans-inductor voltage regulator (TLVR) topology. The techniques may have the coupling effect from the secondary side included, so the current sensing signal is accurate for the regulation and other functions related to the current signal. The current sensing techniques may have more accurate gain and phase information in the middle frequency and high frequency ranges. The coupling effect from the secondary side may be well represented in the current sensing signal. The advantages of TLVR topology may be enhanced with accurate current information.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: April 15, 2025
    Assignee: Analog Devices, Inc
    Inventors: Xuebing Chen, Owen Jong, Ya Liu, Jindong Zhang, Mark Frederick Hartman
  • Publication number: 20250118715
    Abstract: Compact packages including microelectromechanical system (MEMS) devices and multiple application specific integrated circuits (ASICs) are described. These packages are sufficiently small to be applicable to contexts in which space requirements are particularly strict, such as in consumer electronics. These packages involve vertical die stacks. A first ASIC may be positioned on one side of the die stack and another ASIC may be positioned on the other side of the die stack. A die including a MEMS device (e.g., an accelerometer, gyroscope, switch, resonator, optical device) is positioned between the ASICs. Optionally, an interposer serving as cap substrate for the MEMS device is also positioned between the ASICs. In one example, a package of the types described herein has an extension of 2 mm×2 mm in the planar axes and less than 500-800 ?m in height.
    Type: Application
    Filed: January 24, 2023
    Publication date: April 10, 2025
    Applicant: Analog Devices, Inc.
    Inventors: Xin Zhang, Jianglong Zhang, Li Chen, John C. Cowles, Michael Judy, Shafi Saiyed
  • Patent number: 12271216
    Abstract: Apparatus and methods for logarithmic current to voltage conversion are disclosed herein. In certain embodiments, a logarithmic current to voltage converter includes an input terminal that receives an input current, an output terminal that provides a logarithmic output voltage, a first field-effect transistor (FET) having a gate connected to the input terminal, a first bipolar transistor having a collector connected to the input terminal and an emitter connected to the output terminal, and a stacked transistor connected to the output terminal and to the first FET to form a feedback loop. For example, the stacked transistor can correspond to a second bipolar transistor having a collector connected to the output terminal and a base connected to the source of the first FET, or to a second FET having a drain connected to the output terminal and a gate connected to the source of the first FET.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: April 8, 2025
    Assignee: Analog Devices, Inc.
    Inventor: Petrus M. Stroet
  • Patent number: 12268480
    Abstract: One or more electromagnetic radiation sources, such as a light emitting diode, may emit electromagnetic waves into a volume of space. When an object enters the volume of space, the electromagnetic waves may reflect off the object and strike one or more position sensitive detectors after passing through an imaging optical system such as glass, plastic lens, or a pinhole located at known distances from the sources. Mixed signal electronics may process detected signals at the position sensitive detectors to calculate position information as well as total reflected light intensity, which may be used in medical and other applications. A transparent barrier may separate the sources and detectors from the objects entering the volume of space and reflecting emitted waves. Methods and devices are provided.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: April 8, 2025
    Assignee: ANALOG DEVICES, INC.
    Inventor: Shrenik Deliwala
  • Patent number: 12265376
    Abstract: There is disclosed herein programmable delay lines and control methods having glitch suppression. In particular, the programmable delay lines may include latches that are triggered based on a trigger event of an input signal (which is often an edge of the input signal). The programmable delay lines may include one or more latches coupled between capacitor and transistor subassemblies and the latches, where the latches cause a delay between the time the trigger event arrives at the capacitor and transistor subassemblies and the latches. The delay can prevent the latches from updating at the same time that the edge of the input signal arrives at the capacitor and transistor subassemblies, which can suppress glitches that can causes errors in operation.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: April 1, 2025
    Assignee: Analog Devices, Inc.
    Inventor: John Kenney
  • Patent number: 12267940
    Abstract: Apparatus and methods for nanoplasma switches are disclosed. In certain embodiments, a nanoplasma switching system includes a nanoplasma radio frequency (RF) switch that receives an RF signal, and a nanoplasma DC switch that receives a DC bias voltage. The nanoplasma DC switch is positioned adjacent to but spaced apart from the nanoplasma RF switch. The nanoplasma DC switch induces a nanoplasma through the nanoplasma RF switch when the DC bias voltage is set to a first voltage level. By implementing the nanoplasma switching system in this manner, DC bias to turn on or off the nanoplasma RF switch can be realized without needing to use passive components such as DC blocking capacitors, choke inductors, or baluns for isolation.
    Type: Grant
    Filed: March 28, 2023
    Date of Patent: April 1, 2025
    Assignee: Analog Devices International Unlimited Company
    Inventor: Romulo Maggay
  • Patent number: 12265624
    Abstract: Various examples are directed to a System on a Chip (SOC) and methods of operating the same. The SOC may access firmware code from a boot Read-Only Memory (ROM) of the SOC. The firmware code may comprise a plurality of functional blocks. The SOC may determine that firmware patching is active for the SOC and access patch data from a non-volatile memory of the SOC. The SOC may determine that a first functional block of the firmware code has been patched and access first patch code from the patch data. The first patch code may be associated with the first functional block. The SOC may execute the first patch code.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: April 1, 2025
    Assignee: Analog Devices International Unlimited Company
    Inventors: Akshayakumar Haribhatt, Venkatavishnu Ganesh Reddy Beeram, Raka Singh