Patent · US Active

Position determination device and method

US11255674B2 · kind B2 · utility

2Cited by

3References

20Claims

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 27, 2018
Grant date	Feb 22, 2022
Priority date	—
Expiry date	Jun 18, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01V3/40
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, separation circuitry configured to separate the obtained magnetic sensor data into low frequency sensor data including frequencies below a frequency threshold and high frequency sensor data including frequencies above the frequency threshold, fingerprint combining circuitry configured to determine a combined magnetic fingerprint based on the low frequency sensor data and the high frequency sensor data, and position determination circuitry configured to determine the sensor position of the magnetic field sensor by comparing the combined magnetic fingerprint with a magnetic map.

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