Patents Assigned to Analog Devices
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Patent number: 12019252Abstract: In an optical element, diffractive focusing features and diffractive anti-reflection features can extend into a first surface of a body, such as by etching. The diffractive focusing features can have a same first depth that is greater than a wavelength, and can be located in a first area to have a duty cycle that varies over the first area. The diffractive anti-reflection features can have a same second depth that is less than the wavelength. In some examples, an effective refractive index of the diffractive focusing features and the diffractive anti-reflection features, together, can be less than or equal to a specified value, such as 120% of a square root of a refractive index of a material of the body. In other examples, the diffractive anti-reflection features can be located in the first area to have a duty cycle that is constant over the first area.Type: GrantFiled: November 24, 2020Date of Patent: June 25, 2024Assignees: Analog Devices, Inc., UD HOLDINGS, LLCInventors: David Kryskowski, Krishnan Ramaswamy Parameswaran
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Patent number: 12019043Abstract: Accurately measuring bio-impedance is important for sensing properties of the body. Unfortunately, contact impedances can significantly degrade the accuracy of bio-impedance measurements. To address this issue, circuitry for implementing a four-wire impedance measurement can be configured to make multiple current measurements. The multiple current measurements set up a system of equations to allow the unknown bio-impedance and contact impedances to be derived. The result is an accurate bio-impedance measurement that is not negatively impacted by large contact impedances. Moreover, bad contacts with undesirably large impedances can be identified.Type: GrantFiled: June 28, 2021Date of Patent: June 25, 2024Assignee: Analog Devices International Unlimited CompanyInventors: Jose Carlos Conchell Ano, Javier Calpe Maravilla, Liam Patrick Riordan
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Patent number: 12019189Abstract: A system and method for providing a dynamic composite field of view in a scanning lidar system, such as to improve a signal-to-noise ration of detected light. The dynamic composite field of view can include a subset of the available detector pixels, and can thereby reduce noise introduce by noise sources that can scale with a detector area, such as dark current and gain peaking that can be caused by a capacitance of the photodetector.Type: GrantFiled: January 24, 2018Date of Patent: June 25, 2024Assignee: Analog Devices, Inc.Inventors: Michael Howard Anderson, Scott Robert Davis, Benjamin Luey
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Patent number: 12019575Abstract: A switch fabric is disclosed that includes a serial communications interface and a parallel communications interface. The serial communications interface is configured for connecting a plurality of slave devices to a master device in parallel to transmit information between the plurality of slave devices and the master device, and the parallel communications interface is configured for separately connecting the plurality of slave devices to the master device to transmit information between the plurality of slave devices and the master device, and to transmit information between individual ones of the plurality of slave devices. The parallel communications interface may comprise a dedicated parallel communications channel for each one of the plurality of slave devices. The serial communications interface may comprise a multidrop bus, and the parallel communications interface may comprise a cross switch.Type: GrantFiled: August 17, 2021Date of Patent: June 25, 2024Assignee: Analog Devices, Inc.Inventors: James G. Calvin, Albert Rooyakkers
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Patent number: 12015420Abstract: Herein disclosed are multiple embodiments of a signal-processing circuit that may be utilized in various circuits, including conversion circuitry. The signal-processing circuit may receive an input and produce charges on multiple different capacitors during different phases of operation based on the input. The charges stored on two or more of the multiple different capacitors may be utilized for producing an output of the signal-processing circuit, such as by combing the charges stored on two or more of the multiple different capacitors. Utilizing the charges on the multiple different capacitors may provide for a high level of accuracy and robustness to variations of environmental factors, and/or a low noise level and power consumption when producing the output.Type: GrantFiled: August 1, 2023Date of Patent: June 18, 2024Assignee: Analog Devices, Inc.Inventor: Jesper Steensgaard-Madsen
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Publication number: 20240188918Abstract: One embodiment is a method of deconvolving overlapping first and second pulses in a photon-counting CT scanning system, the method comprising detecting a first pulse event having a first detected level; detecting a second pulse event having a second detected level; determining an amount of time that elapses between the detected first pulse event and the detected second pulse event; and reconstructing the first pulse and the second pulse using the first and second detected levels, the duration of time between the first and second pulse events, and a known pulse shape.Type: ApplicationFiled: December 13, 2022Publication date: June 13, 2024Applicant: Analog Devices, Inc.Inventors: Sunrita PODDAR, Patrick S. RIEHL, Matthew A. WOODRUFF
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Patent number: 12009207Abstract: A semiconductor device includes a layer of a first semiconducting material, where the first semiconducting material is epitaxially grown to have a crystal structure of a first substrate. The semiconductor device further includes a layer of a second semiconducting material disposed adjacent to the layer of the first semiconducting material to form a heterojunction with the layer of the first semiconducting material. The semiconductor device further includes a first component that is electrically coupled to the heterojunction, and a second substrate that is bonded to the layer of the first semiconducting material.Type: GrantFiled: October 19, 2022Date of Patent: June 11, 2024Assignee: Analog Devices, Inc.Inventors: Puneet Srivastava, James G. Fiorenza
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Patent number: 12009791Abstract: Systems and methods are provided for architectures for a digital class D driver that increase the power efficiency of the class D driver. In particular, systems and methods are provided for a digital class D driver having a feedback analog-to-digital converter (ADC) that can have a latency of 1 cycle or more than 1 cycle. A feedback ADC with a latency of 1 cycle or more is significantly lower power than a low latency feedback ADC. Systems and methods are disclosed for a power efficient digital class D driver architecture that allows for a latency of one or more cycles in the feedback ADC.Type: GrantFiled: March 23, 2022Date of Patent: June 11, 2024Assignee: Analog Devices, Inc.Inventor: Abhishek Bandyopadhyay
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Patent number: 12001597Abstract: An industrial control system module and methods are described for self-destruction or the destruction and/or erasure of sensitive data within the industrial control system module upon an indication of an unauthorized module access event. In an implementation, a secure industrial control system module includes a circuit board including electrical circuitry; a sealed encasement that houses the circuit board, where the sealed encasement includes a housing having a first housing side and a second housing side, where the housing is configured to house the circuit board when the first housing side and the second housing side are coupled together; and a first sensor component integrated with the sealed encasement, where the first sensor component is communicably coupled to the circuit board and electrical circuitry and is configured to provide an indication of an unauthorized access event.Type: GrantFiled: June 1, 2023Date of Patent: June 4, 2024Assignee: Analog Devices, Inc.Inventors: Albert Rooyakkers, Ken Doucette
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Patent number: 12003261Abstract: 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.Type: GrantFiled: April 29, 2022Date of Patent: June 4, 2024Assignee: Analog Devices, Inc.Inventors: Tao Yu, Cristobal Alessandri, Frank Yaul, Wenjie Lu, Shyam Chandrasekhar Nambiar
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Patent number: 12000739Abstract: Microelectromechanical systems (MEMS) capacitive strain gauge sensors are described. The strain gauge sensors include a lever configured to mechanically amplify a strain response. In some embodiments, an anchored beam is coupled to the effort arm of the lever and a movable sensing finger to the resistance arm. The effort arm may be shorter than the resistance arm, thus providing a mechanical amplification.Type: GrantFiled: April 22, 2021Date of Patent: June 4, 2024Assignee: Analog Devices, Inc.Inventors: Erdinc Tatar, William A. Clark
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Patent number: 12000931Abstract: Systems and methods for a lower energy/faster time of flight camera system configured to measure distance to an object. The system is configured to emit laser light modulated with a first frequency and image light reflected by an object in order to determine a first phase difference between the emitted and reflected light. The system emits laser light modulated with a second frequency and images light reflected by the object to determine a second phase difference between the emitted and reflected light. The distance to the object is determined using the first and second phase differences. The system is arranged to operate at lower energy for obtaining the first phase difference compared with the operation to obtain the second phase difference. This results in lower overall energy consumption and faster overall operation without any significant reduction in accuracy of imaging.Type: GrantFiled: May 10, 2021Date of Patent: June 4, 2024Assignee: Analog Devices International Unlimited CompanyInventors: Jonathan Ephraim David Hurwitz, Krystian Balicki, Eoin E. English
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Patent number: 12002838Abstract: An integrated device package is disclosed. The integrated device package can include a package substrate having a plurality of contact pads on a first side of the package substrate, the plurality of contact pads configured to electrically connect to a sensor assembly. The package can include a radiation shield attached to a second side of the package substrate by way of a first adhesive, the first side opposite the second side. The package can include an integrated device die attached to the radiation shield by way of a second adhesive. The integrated device die can comprise sensitive active electronic circuitry in a sensitive active region of the integrated device die. A molding compound can be disposed over the integrated device die and the radiation shield.Type: GrantFiled: December 5, 2019Date of Patent: June 4, 2024Assignee: ANALOG DEVICES, INC.Inventors: Vikram Venkatadri, Mark Downey, Santosh Anil Kudtarkar
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Publication number: 20240175960Abstract: A hybrid current sense system and methods can comprise: a switch coupled to a phase output and coupled to a voltage rail; an amplifier coupled to the switch and the amplifier configured to detect current information of the switch; a current detector coupled between the switch and the voltage rail, the current detector configured to determine a measured current for the switch; and a current calibrator configured to calibrate the current information for the switch based on the measured current.Type: ApplicationFiled: November 1, 2023Publication date: May 30, 2024Applicant: Analog Devices International Unlimited CompanyInventors: Luigi Franchini, Onno Martens, Roberto Casiraghi
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Patent number: 11994994Abstract: A memory device includes a memory array and a memory controller operatively coupled to the memory array. The memory array includes memory cells to store memory data. The memory controller includes a prefetch buffer, a read address buffer including memory registers to store addresses of memory read requests received from at least one separate device, and logic circuitry. The logic circuitry is configured to store extra read data in the prefetch buffer when an address of a read request is a continuous address of an address stored in the read address buffer, and omit prefetching the extra data when the address of the read request is a non-continuous address of an address stored in the read address buffer.Type: GrantFiled: April 25, 2022Date of Patent: May 28, 2024Assignee: Analog Devices International Unlimited CompanyInventors: Aniket Akshay Saraf, Kaushik Kandukuri, Thirukumaran Natrayan, Saurbh Srivastava
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Patent number: 11994546Abstract: 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.Type: GrantFiled: May 17, 2022Date of Patent: May 28, 2024Assignee: Analog Devices, Inc.Inventors: Isaac Chase Novet, Steven J. Decker
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Patent number: 11996855Abstract: Systems and techniques for Digital-to-Analog Converter (DAC) gain correction are described herein. A digital-to-analog converter (DAC) circuit can include a switch bridge circuit having a first leg and a second leg that define respective mutually exclusive first and second DAC signal paths. The DAC circuit can further include a first compensation circuit configured to provide a first compensation current to the first leg of the switch bridge to compensate for a current defect caused by a voltage drop across a portion of the first DAC signal path. The DAC circuit can also include a second compensation circuit configured to provide a second compensation current to a second leg of the switch bridge to compensate for a voltage drop across a portion of the second DAC signal path. The DAC circuit can be included in a larger circuit such as a continuous time sigma delta (CTSD) analog-to-digital converter (ADC).Type: GrantFiled: February 28, 2022Date of Patent: May 28, 2024Assignee: Analog Devices International Unlimited CompanyInventors: Andrew Joseph Thomas, Roberto Sergio Matteo Maurino
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Patent number: 11988708Abstract: 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: GrantFiled: May 16, 2023Date of Patent: May 21, 2024Assignee: Analog Devices International Unlimited CompanyInventors: 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
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Patent number: 11991604Abstract: Systems and methods are provided for wirelessly communicating with multiple sensors. In particular, a multi-sensor platform is provided that acts as an intermediary node and can communicate with multiple integrity sensors. The integrity sensors are each coupled via a wired connection to the multi-sensor platform, and the multi-sensor platform is powered wirelessly by a radiofrequency transmitter. The radiofrequency transmitter can receive data from multiple sensors via one node, the multi-sensor platform, thus allowing the radiofrequency transmitter to have a static transmission beam.Type: GrantFiled: August 14, 2020Date of Patent: May 21, 2024Assignee: ANALOG DEVICES, INC.Inventors: Yosef Stein, Armindo Chaves, Hazarathaiah Malepati
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Publication number: 20240163143Abstract: Simple, low-cost systems and methods allow to shape the output spectrum of pre-equalized Tomlinson Harashima Precoding (THP)-equalized transmitters in a manner such as to create a relatively narrow DC null to facilitate transmission over DC-null channels in AC-coupled communication channels. Advantageously, this may be accomplished without significantly adding to the peak value of the to-be-transmitted signal and without the need to resort to high-order filters in the signal path or the use of recursive taps to compensate such filters.Type: ApplicationFiled: November 16, 2022Publication date: May 16, 2024Applicant: Analog Devices, Inc.Inventor: Charles RAZZELL
