Patents Assigned to Analog Devices, Inc.
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Patent number: 11804804Abstract: One embodiment is a reconfigurable mixer topology for selectively implementing one of a harmonic rejection mixer (HRM) and a subharmonic mixer (SHM), the reconfigurable mixer topology comprising a mixer core comprising a plurality of differential mixers each having a first clock input and a second clock input; a clock generator for generating a plurality of clock signals each having a different phase; and a clock distributor for distributing the plurality of clock signals to the first and second clock inputs of the differential mixers in accordance with a designated operation of the reconfigurable mixer as an HRM or an SHM.Type: GrantFiled: September 14, 2021Date of Patent: October 31, 2023Assignee: Analog Devices, Inc.Inventors: Peter Delos, Ed Balboni
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Correcting physical unclonable function errors based on short integers solutions to lattice problems
Patent number: 11804971Abstract: Physical unclonable functions (PUFs) are described. The PUFs utilize intrinsic information to determine the confidence level of comparison values. The information about confidence levels may be used to simplify the process of recovering the PUF secret. Since the information about confidence levels may be intrinsic, and not know outside the PUF, the PUF may be secure.Type: GrantFiled: August 5, 2020Date of Patent: October 31, 2023Assignee: Analog Devices, Inc.Inventor: Chiraag Juvekar -
Patent number: 11805396Abstract: 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.Type: GrantFiled: March 26, 2020Date of Patent: October 31, 2023Assignee: Analog Devices, Inc.Inventors: Eugene Oh Hwang, Tao Yu, Phillip Nadeau, Michael Judy, Rui Zhang
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Patent number: 11796367Abstract: A flow meter is disclosed. The flow meter can include a housing that has a cavity. The flow meter can also include a deformable tube that is disposed in the cavity. The deformable tube can comprise a portion of a flow path of a fluid substance. The flow meter can further include a cam that is rotatably coupled to the housing. A portion of the cam is configured to press against a portion of the collapsible tube so as to deform the portion of the collapsible tube. The cam can be configured to rotate in response to a flow of the fluid substance in the flow path.Type: GrantFiled: May 7, 2021Date of Patent: October 24, 2023Assignee: ANALOG DEVICES, INC.Inventors: Vikram Venkatadri, David Frank Bolognia
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Patent number: 11796445Abstract: 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.Type: GrantFiled: March 20, 2020Date of Patent: October 24, 2023Assignee: ANALOG DEVICES, INC.Inventor: Shrenik Deliwala
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Publication number: 20230332890Abstract: Microelectromechanical systems (MEMS) yaw gyroscopes having out-of-plane quadrature trim electrodes are described. The gyroscope includes a proof mass configured to be driven in-plane. The proof mass includes an opening, or a plurality of openings. The out-of-plane quadrature trim electrodes are positioned to laterally overlap edges of the opening in a projection plane. The out-of-plane quadrature trim electrodes trim in-plane motion of the proof mass in one or two directions to limit quadrature motion. The out-of-plane quadrature trim electrodes may be arranged in a symmetric pattern to enable mode switching.Type: ApplicationFiled: April 14, 2023Publication date: October 19, 2023Applicant: Analog Devices, Inc.Inventors: Arthur Y. Savchenko, Igor P. Prikhodko, Tyler Adam Dunn
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Patent number: 11791775Abstract: 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.Type: GrantFiled: February 24, 2022Date of Patent: October 17, 2023Assignee: Analog Devices, Inc.Inventor: Keith E. Benson
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Patent number: 11789477Abstract: Aspects of the present disclosure include a hybrid circuit, including a first current sink configured to sink a zero temperature coefficient (ZTC) current, a second current sink configured to sink a positive temperature coefficient (PTC) current, a first transistor configured to provide a first current, a second transistor configured to provide a second current, a third transistor configured to provide a third current mirroring the ZTC current, a fourth transistor configured to provide a sum current of the first current and the third current, and a current mirror configured provide a hybrid current mirroring the sum current.Type: GrantFiled: September 1, 2022Date of Patent: October 17, 2023Assignee: ANALOG DEVICES, INC.Inventors: Kevin R. Wrenner, Ruida Yun, Kenneth G. Richardson
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Patent number: 11788942Abstract: 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.Type: GrantFiled: November 6, 2018Date of Patent: October 17, 2023Assignee: Analog Devices, Inc.Inventor: Shrenik Deliwala
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Patent number: 11785133Abstract: 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.Type: GrantFiled: December 17, 2021Date of Patent: October 10, 2023Assignee: ANALOG DEVICES, INC.Inventor: Isaac Chase Novet
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Publication number: 20230314639Abstract: One embodiment is a method for binning charge events in a photon-counting CT 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 comprising detecting a transition in a signal output from one of the discriminators; and incrementing a count corresponding to the threshold voltage level associated with the one of the discriminators only if the detected discriminator output signal transition was immediately preceded by an opposite transition in the discriminator output signal.Type: ApplicationFiled: July 8, 2021Publication date: October 5, 2023Applicant: Analog Devices, Inc.Inventors: Gregory T. KOKER, Matthew A. WOODRUFF
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Patent number: 11774244Abstract: Columnar multi-axis microelectromechanical systems (MEMS) devices (such as gyroscopes) balanced against undesired linear and angular vibration are described herein. In some embodiments, the columnar MEMS device may comprise at least two multiple-mass columns, each having at least three proof masses and being configured to sense rotation about a respective axis. The motion and mass of the proof masses may be controlled to achieve linear and rotational balancing of the MEMS device. The columnar MEMS device may further comprise one or more modular drive structures disposed alongside each multiple-mass column to facilitate displacement of the proof masses of a respective column. The MEMS devices described herein may be used to sense roll, yaw, and pitch angular rates.Type: GrantFiled: October 29, 2021Date of Patent: October 3, 2023Assignee: Analog Devices, Inc.Inventors: Jeffrey A. Gregory, Charles Blackmer, Tyler Adam Dunn, Eugene Oh Hwang, Jinbo Kuang, Kemiao Jia, Laura Cornelia Popa, Igor P. Prikhodko, Erdinc Tatar
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Publication number: 20230296379Abstract: According to some aspects, there is provided a microelectromechanical systems (MEMS) device wherein one or more components of the MEMS device exhibit attenuated motion relative to one or more other moving components. The MEMS device may comprise a substrate; a proof mass coupled to the substrate and configured to move along a resonator axis; and a first shuttle coupled to the proof mass and comprising one of a drive structure configured to drive the proof mass along the resonator axis or a sense structure configured to move along a second axis substantially perpendicular to the resonator axis in response to motion of the proof mass along the resonator axis, wherein displacement of at least a first portion of the proof mass is attenuated relative to displacement of the first shuttle and/or a second portion of the proof mass.Type: ApplicationFiled: May 19, 2023Publication date: September 21, 2023Applicant: Analog Devices, Inc.Inventors: Igor P. Prikhodko, John A. Geen
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Patent number: 11764392Abstract: A battery assembly is disclosed. The battery assembly can include a first electrode disposed in a first substrate section and a second electrode disposed in a second substrate section. The battery assembly can also include an adhesive that bonds the first substrate section to the second substrate section. The adhesive partially defines a chamber between the first and second electrodes. The battery assembly can also include an electrolyte disposed in the chamber between the first and second electrodes.Type: GrantFiled: March 1, 2018Date of Patent: September 19, 2023Assignee: ANALOG DEVICES, INC.Inventors: Kelvin Po Leung Pun, Vikram Venkatadri, David Frank Bolognia, Chee Wah Cheung
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Patent number: 11764822Abstract: Radio transceiver control interfaces are provided herein. In certain embodiments, a semiconductor die includes a group of transmitters and a group of receivers that operate as a transceiver. Additionally, a group of common pins are used to control settings of both the transmitters and receivers. In one example, data received on the common pins can be used to establish enable settings for each of the transmitters and receivers. Thus, rather than using a one-to-one correspondence between a pin and the setting of a particular transmitter or receiver, a mapping is used between the common pins and the settings of the transmitters and receivers.Type: GrantFiled: July 19, 2021Date of Patent: September 19, 2023Assignee: Analog Devices, Inc.Inventors: Christopher Mayer, Manish J. Manglani
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Patent number: 11764204Abstract: Herein disclosed are systems and circuitry for protecting against overdrive and electrostatic discharge. For example, protection circuitry may include field effect transistors to discharge overdrive outside of an operational voltage range of a circuit in some embodiments to prevent damage to the circuit. Further, the protection circuitry may utilize diode features inherent in the field effect transistors to protect against electrostatic discharge in some embodiments. The circuitry may be implemented in radio frequency sampling analog-to-digital converters and can provide for single-ended signal input and/or output for the analog-to-digital converters.Type: GrantFiled: June 18, 2020Date of Patent: September 19, 2023Assignee: Analog Devices, Inc.Inventors: Ralph D. Moore, Franklin M. Murden, Peter Delos, Srivatsan Parthasarathy, Javier Salcedo, John Guido
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Publication number: 20230286465Abstract: Remote keyless entry (RKE) systems and devices are described. The RKE devices include one or more passive radios that respond to an interrogation signal from an interrogating device such as a vehicle. The passive radio sends a responsive signal that can include a decaying portion representing a ringdown signal. The passive radio includes a SAW resonator in some situations.Type: ApplicationFiled: May 18, 2023Publication date: September 14, 2023Applicant: Analog Devices, Inc.Inventors: Harvey Weinberg, Tze Lei Poo, Tao Yu, Eugene Oh Hwang
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Publication number: 20230288204Abstract: A MEMS device is provided comprising a mass configured to move along a first axis and a second axis substantially perpendicular to the first axis; a drive structure coupled to the mass and configured to cause the mass to move along the first axis; a sense structure coupled to the mass and configured to detect motion of the mass along the second axis; a stress relief structure coupled to one of the drive structure or the sense structure; and at least one anchor coupled to an underlying substrate of the MEMS device, wherein the stress relief structure is coupled to the at least one anchor and the at least one anchor is disposed outside of the stress relief structure.Type: ApplicationFiled: May 19, 2023Publication date: September 14, 2023Applicant: Analog Devices, Inc.Inventor: Gaurav Vohra
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Patent number: 11754599Abstract: 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.Type: GrantFiled: July 15, 2021Date of Patent: September 12, 2023Assignee: Analog Devices, Inc.Inventors: Andrew Joseph Thomas, Joseph L. Sousa, Micah Galletta O'Halloran, Alex Robert Sloboda
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Patent number: 11757466Abstract: Systems and methods for improving the efficiency of a rotational dynamic element matching (DEM) for Delta Sigma converters. In some implementations, the systems and methods are provided for reducing intersymbol interference (ISI) of a Delta Sigma converter. A delta sigma converter architecture can include multiple I-DACs, and the output from each I-DAC can vary from the other l-DACs. Techniques include decreasing mismatch among multiple l-DACs while improving efficiency of rotational dynamic element matching.Type: GrantFiled: August 6, 2021Date of Patent: September 12, 2023Assignee: Analog Devices, Inc.Inventors: Abhishek Bandyopadhyay, Preston S. Birdsong, Adam R. Spirer