公开(公告)号：US10551215B2

公开(公告)日：2020-02-04

申请号：US14737403

申请日：2015-06-11

Applicant: ANALOG DEVICES GLOBAL UNLIMITED COMPANY

Inventor： Eoin E. English ,  Javier Calpe Maravilla ,  Robert Guyol ,  Alan J. O'Donnell ,  Maria Jose Martinez ,  Jan Kubik ,  Krystian Balicki

IPC: G01D5/20

Abstract: An embodiment of a position sensing system includes a signal generation circuit to generate an excitation signal according to a selected characteristic signal, a drive circuit to drive an excitation source with the excitation signal, an input circuit to receive a sensor output while driving the excitation source, a signal detection circuit to identify a component of the sensor output corresponding to the characteristic signal, and a control circuit to determine the position of the movable object as a function of the identified component of the sensor output. The positioning system may be included an electronic camera, where the movable object may be a lens. The excitation source may be a conductive coil, the excitation a magnetic field, and the sensor a magneto resistive sensor. Alternatively, the excitation source may be an optical excitation source, the excitation an optical excitation, and the sensor an optical sensor.

公开(公告)号：US11061086B2

公开(公告)日：2021-07-13

申请号：US16565201

申请日：2019-09-09

Applicant: Analog Devices Global

Inventor： Alan J. O'Donnell ,  Robert Guyol ,  Maria Jose Martinez ,  Jan Kubik ,  Padraig L. Fitzgerald ,  Javier Calpe Maravilla ,  Michael P. Lynch ,  Eoin E. English

IPC: G01R33/09 ,  H01F17/00 ,  H01L43/08 ,  B81B3/00

Abstract: A magnetic device may include a magnetic structure, a device structure, and an associated circuit. The magnetic structure may include a patterned layer of material having a predetermined magnetic property. The patterned layer may be configured to, e.g., provide a magnetic field, sense a magnetic field, channel or concentrate magnetic flux, shield a component from a magnetic field, or provide magnetically actuated motion, etc. The device structure may be another structure of the device that is physically connected to or arranged relative to the magnetic structure to, e.g., structurally support, enable operation of, or otherwise incorporate the magnetic structure into the magnetic device, etc. The associated circuit may be electrically connected to the magnetic structure to receive, provide, condition or process of signals of the magnetic device.

公开(公告)号：US10582887B2

公开(公告)日：2020-03-10

申请号：US15072961

申请日：2016-03-17

Applicant: Analog Devices Global

Inventor： John Jude O'Donnell ,  Javier Calpe Maravilla ,  Colin G. Lyden ,  Thomas G. O'Dwyer

IPC: A61B5/1455 ,  A61B5/0402 ,  A61B5/00

Abstract: A blood oxygenation sensor is provided comprising: a first current-powered light source to produce light having a first wavelength; a second current-powered light source to produce light having a second wavelength; a light sensor to produce a current signal having a magnitude that is indicative of intensity of light incident upon it; a current level driver circuit that includes a current source configured to couple the current source to alternatively provide current to one of the first current-powered light source and the second light current-powered light source; a processor configured to predict times of occurrence of one or more first time intervals in which arterial volume at a tissue site is at one of a maximum and a minimum; wherein the processor is configured to control the current source, to provide a first pattern of higher power-dissipation current pulses to the first and second current-powered light sources during the first time intervals, and to provide a second pattern of lower power-dissipation current pulses to at least one of the first and second current-powered light sources during second time intervals.

公开(公告)号：US20200003851A1

公开(公告)日：2020-01-02

申请号：US16565201

申请日：2019-09-09

Applicant: Analog Devices Global

Inventor： Alan J. O'Donnell ,  Robert Guyol ,  Maria Jose Martinez ,  Jan Kubik ,  Padraig L. Fitzgerald ,  Javier Calpe Maravilla ,  Michael P. Lynch ,  Eoin E. English

IPC: G01R33/09 ,  H01F17/00 ,  H01L43/08 ,  B81B3/00

Abstract: A magnetic device may include a magnetic structure, a device structure, and an associated circuit. The magnetic structure may include a patterned layer of material having a predetermined magnetic property. The patterned layer may be configured to, e.g., provide a magnetic field, sense a magnetic field, channel or concentrate magnetic flux, shield a component from a magnetic field, or provide magnetically actuated motion, etc. The device structure may be another structure of the device that is physically connected to or arranged relative to the magnetic structure to, e.g., structurally support, enable operation of, or otherwise incorporate the magnetic structure into the magnetic device, etc. The associated circuit may be electrically connected to the magnetic structure to receive, provide, condition or process of signals of the magnetic device.

公开(公告)号：US20180189977A1

公开(公告)日：2018-07-05

申请号：US15395589

申请日：2016-12-30

Applicant: Analog Devices Global

Inventor： Maurizio Zecchini ,  Chao Wang ,  Eoin English ,  Javier Calpe Maravilla

IPC: G06T7/80 ,  H04N17/00 ,  G01S7/497 ,  G01S17/89

CPC classification number: G01S17/89 ,  G01S7/497 ,  G01S17/10 ,  G01S17/42

Abstract: This disclosure pertains to a system and method for calibrating a time-of-flight imaging system. The system includes a housing that houses light emitter, a light steering device, and a photosensitive element. The system also includes an optical waveguide or reflective element on an inner wall of the housing. The light steering device can be controlled to steer a beam of light from the light emitter to the optical waveguide. The optical waveguide or reflective element can direct the light from a known position on the wall of the housing to the photosensitive element.