Patent · US Active

Position determination device and method

US11366184B2 · kind B2 · utility

0Cited by

1References

16Claims

0Family size

Assignee

SONY SEMICONDUCTOR SOLUTIONS CORPORATION · JP

Inventors

Ben Eitel · Stuttgart, DE
Daniel Schneider · Munich, DE
Mark Veltman · Tokyo, JP

Key dates

Filing date	Jun 11, 2018
Grant date	Jun 21, 2022
Priority date	—
Expiry date	Apr 4, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/0206
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A position determination device comprises data input circuitry configured to obtain magnetic field sensor data sensed by a magnetic field sensor, detection circuitry configured to detect temporal variations of the magnetic field and to generate temporal variation information indicating the detected temporal variation of the magnetic field, and magnetic fingerprinting circuitry configured to determine a first position estimate of the sensor position by comparing the obtained magnetic field sensor data with a magnetic map comprising magnetic fingerprints of a region around the magnetic field sensor and using the generated temporal variation information.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.