The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 2020
Filed:
Jun. 11, 2015
Analog Devices Global Unlimited Company, Hamilton, BM;
Eoin E. English, Pallasgreen, IE;
Javier Calpe Maravilla, Algemesi, ES;
Robert Guyol, St. Louis, MO (US);
Alan J. O'Donnell, Castletroy, IE;
Maria Jose Martinez, Valencia, ES;
Jan Kubik, Limerick, IE;
Krystian Balicki, Limerick, IE;
ANALOG DEVICES GLOBAL UNLIMITED COMPANY, Hamilton, BM;
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.