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US 2019/0170546 A1Published application
Method and system for automatic factory calibration
AssigneeInvenSense, Inc.
InventorsJoe Youssef, Karthik Katingari, Sebastian Riccardi, Hemabh Shekhar
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Abstract
A sensor may be automatically calibrated during manufacture by providing a sensor processing unit having an integrated sensor, performing a check to determine if the integrated sensor has been previously calibrated upon a reset. When it has been determined the integrated sensor has not been previously calibrated, an automated calibration pattern may be imparted to the sensor so that a calibration parameter is determined.
Claims21
A method for automatically calibrating a sensor, the method comprising:
- a) providing a sensor processing unit having an integrated sensor;
- b) performing a check to determine if the integrated sensor has been previously calibrated upon a reset;
- c) monitoring for a machine-induced, automated calibration pattern when the integrated sensor has not been previously calibrated;
- d) imparting at least one automated calibration pattern to the sensor processing unit when the integrated sensor has not been previously calibrated;
- and
- e) determining a calibration parameter for the integrated sensor based at least in part on the imparted automated calibration pattern when the integrated sensor has not been previously calibrated.
3 more elements
A portable device comprising:
- an integrated sensor;
- and
- a calibration module configured to:
- a) perform a check to determine if the integrated sensor has been previously calibrated upon a reset of the portable device;
- b) monitor for a machine-induced, automated calibration pattern when the integrated sensor has not been previously calibrated;
- and
- c) determine a calibration parameter for the integrated sensor based at least in part on experiencing the automated calibration pattern when the integrated sensor has not been previously calibrated.
4 more elements
Dependencies are inferred from the claim text.