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公开(公告)号：US11044022B2
公开(公告)日：2021-06-22
申请号：US16287796
申请日：2019-02-27
Applicant: Analog Devices Global Unlimited Company
Inventor： Laurence B. O'Sullivan , Shane Geary , Baoxing Chen , Bernard Patrick Stenson , Paul Lambkin , Patrick M. McGuinness , Stephen O'Brien , Patrick J. Murphy
Abstract: Isolators having a back-to-back configuration for providing electrical isolation between two circuits are described, in which multiple isolators formed on a single, monolithic substrate are connected in series to achieve a higher amount of electrical isolation for a single substrate than for isolators formed on separate substrates connected in series. Discrete dielectric regions positioned between isolator components forming an isolator provide electrical isolation between the isolator components as well as between the isolators formed on the substrate. The back-to-back isolator may provide one or more communication channels for transfer of information and/or power between different circuits.
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公开(公告)号：US20210067160A1
公开(公告)日：2021-03-04
申请号：US17080785
申请日：2020-10-26
Applicant: Analog Devices Global Unlimited Company
Inventor： Ying Zhao , Alan O'Donnell , Michael James Twohig , Olly J. Kierse , James Sheeran , Michael C.W. Coln , Paul W. Stevens , Bruce A. Hecht , Padraig Fitzgerald , Mark Schirmer
Abstract: Optically isolated micromachined (MEMS) switches and related methods are described. The optically isolated MEMS switches described herein may be used to provide isolation between electronic devices. For example, the optically isolated MEMS switches of the types described herein can enable the use of separate grounds between the receiving electronic device and the control circuitry. Isolation of high-voltage signals and high-voltage power supplies can be achieved by using an optical isolator and a MEMS switch, where the optical isolator controls the state of the MEMS switch. In some embodiments, utilizing optical isolators to provide high voltages, the need for electric high-voltage sources such as high-voltage power supplies and charge pumps may be removed, thus removing the cause of potential damage to the receiving electronic device. In one example, the optical isolator and the MEMS switch may be co-packaged on the same substrate.
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公开(公告)号：US10931290B2
公开(公告)日：2021-02-23
申请号：US15942119
申请日：2018-03-30
Applicant: Analog Devices Global Unlimited Company
Inventor： Vamshi Krishna Chillara , Declan M. Dalton , Pablo Cruz Dato
Abstract: Aspects of this disclosure relate to reducing settling time of a ramp signal in a phase-locked loop. An offset signal can be applied to adjust an input signal provided to an integrator of a loop filter of the phase-locked loop to cause the settling time to be reduced. Disclosed methods of reducing settling time of a ramp signal can improve settling time of a ramp signal independent of the profile of the ramp signal.
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公开(公告)号：US10855951B2
公开(公告)日：2020-12-01
申请号：US16175101
申请日：2018-10-30
Applicant: Analog Devices Global Unlimited Company
Inventor： John Cullinane , Pablo Ventura , Niall D. O'Connell , Isaac Molina Hernandez
Abstract: Disclosed herein are systems and methods for performing SAG effect compensation on a video signal received over an AC-coupled video link. In one aspect, a method for performing SAF effect compensation includes applying a filter to the received video signal to generate a corrected video signal, where a transfer function of the filter is dependent on a transmission parameter that is based on a plurality of parameters of the AC-coupled link. The method further includes extracting predefined content from the corrected video signal, and adjusting the transmission parameter based on a comparison of the extracted predefined content with certain expected content, so that adjusted transmission parameter can be used for one or more subsequent applications of the filter, thereby realizing an adaptive filter.
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公开(公告)号：US10825628B2
公开(公告)日：2020-11-03
申请号：US15652181
申请日：2017-07-17
Applicant: Analog Devices Global Unlimited Company
Inventor： Check F. Lee , Philip James Brennan
Abstract: An microelectromechanical switch uses electrostatic attraction to draw a beam toward a contact and electromagnetic repulsion to disengage and repel the beam from the contact. The electrostatic attraction is generated by a gate electrode. The electromagnetic repulsion is generated between the beam and a magnetic coil positioned on the same side of the beam as the contact. The magnetic coil produces a magnetic field, which induces a current in the beam that repels the magnetic coil. The gate electrode and the magnetic coil may be co-planar or in different planes. A circuit may also operate a coil-shaped structure act as the gate electrode and the magnetic coil, depending on the configuration.
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Patent Agency Ranking
公开(公告)号：US10824050B2
公开(公告)日：2020-11-03
申请号：US14821395
申请日：2015-08-07
Applicant: ANALOG DEVICES GLOBAL UNLIMITED COMPANY
Inventor： Javier Calpe Maravilla , Eoin E. English , Rafael Mahiques , Jose Carlos Canada , Maria Jose Martinez
IPC: G03B3/10
Abstract: Actuators are used to move a variety of objects to desired positions. It is generally desirable that they can do this quickly without exhibiting overshoot or ringing. Some actuators are required to respond very quickly and examples of these are voice coil drivers used to move lenses in autofocus cameras provided in everyday devices such as smart phones and tablets. A rapid two step controller scheme had already been disclosed by Analog Devices Inc. While the scheme works well, it can only be used reliably if the resonant frequency of the actuator is known to within 2 or 3%. The inventors have discovered that the resonant frequency of an actuator unexpectedly changes as a function of position. This disclosure provides ways of modifying the control scheme to cope with changes in resonant frequency.
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公开(公告)号：US10811185B2
公开(公告)日：2020-10-20
申请号：US16130899
申请日：2018-09-13
Applicant: Analog Devices Global Unlimited Company
Inventor： Liuqing Yang , Jian Ye , Zhijie Zhu
Abstract: The subject disclosure provides for utilizing pulse width modulation (PWM) signaling to influence a closed loop of a shunt boost controller and reduce an imbalance of a load. The imbalance reduction helps reduce remanence of a current transformer (CT) and thereby prevent saturation of the CT. A shunt boost controller provides the control signal to control flow of current to the load. A feedback network provides a feedback signal to the shunt boost controller based on a direct current (DC) voltage and causes a power switch circuit to turn on when a magnitude of the feedback signal exceeds a threshold magnitude. The PWM generator supplies a PWM signal to cause the control signal to be provided more symmetrical to the power switch circuit and causes the power switch circuit to turn on more frequently with the control signal to reduce the imbalance of the load.
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公开(公告)号：US10778206B2
公开(公告)日：2020-09-15
申请号：US15926323
申请日：2018-03-20
Applicant: Analog Devices Global Unlimited Company
Inventor： Turusan Kolcuoglu , Huseyin Kayahan , Yusuf Alperen Atesal
IPC: H04B1/44 , H03K17/04 , H03K17/693
Abstract: Apparatus and methods for biasing radio frequency (RF) switches to achieve fast switching are disclosed herein. In certain configurations, a switch bias circuit generates a switch control voltage for turning on or off a switch that handles RF signals. The switch bias circuit provides the switch control voltage to a control input of the switch by way of a resistor. Additionally, the switch bias circuit pulses the switch control voltage when turning on or off the switch to thereby shorten switching time. Thus, the switch can be turned on or off quickly, which allows the switch to be available for use soon after the state of the switch has been changed.
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公开(公告)号：US10751003B2
公开(公告)日：2020-08-25
申请号：US16033310
申请日：2018-07-12
Applicant: Analog Devices Global Unlimited Company
Inventor： Roberto Munoz , Guillermo Serrano Leon , Carlos Millan Navarro
Abstract: Vital sign monitors are plagued by noisy photoplethysmography (PPG) data, making it difficult for the monitors to output consistently accurate readings. Noise in PPG signals is often caused by motion. The present disclosure provides improved techniques for reducing motion-related artifacts in optical/PPG measurements for vital signs monitoring. In general, techniques described herein are based on using measurements of reference sensors that include sensors other than optical sensors used for the optical measurements, e.g., biopotential sensors, bioimpedance sensors, and/or capacitive sensors. In particular, techniques described herein aim to filter PPG signals using substantially only the noise components of signals generated by reference sensors, by attenuating or altogether eliminating components of the signals generated by reference sensors which are indicative of the parameter the reference sensors are designed to measure. Implementing the techniques described herein may lead to more accurate vital sign evaluation using optical/PPG measurements.
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公开(公告)号：US20200256842A1
公开(公告)日：2020-08-13
申请号：US16651832
申请日：2018-10-08
Applicant: Analog Devices Global Unlimited Company
Inventor： Christophe ANTOINE , Himanshu JAIN , Matthew Thomas CANTY , Christina B. McLOUGHLIN , Daniel Joseph LUCEY , Sinead Maire McDERMOTT , Stephen O'BRIEN , Bernard STENSON , Shane GEARY , William Allan LANE , Michael COLN , Mark De Leon ALEA
IPC: G01N33/487
Abstract: Embodiments of the disclosure provide various nanogap sensor designs (e.g., horizontal nanogap sensors, vertical nanogap sensors, arrays of multiple nanogap sensors, various arrangements for making electrical connections to the electrodes of nanogap sensors, etc.), as well as various methods which may be used to fabricate at least some of the proposed sensors. The nanogap sensors proposed herein may operate as molecular sensors to help identify chemical species through electrical measurements using at least a pair of electrodes separated by a nanogap.
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