Patent · US Active

Earphone and method for identifying whether an earphone is being inserted into an ear of a user

US12137315B2 · kind B2 · utility

0Cited by

4References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Rui Zhang · Wannweil, DE
Juergen Gut · Lörrach, DE
Sergej Scheiermann · Eningen unter Achalm, DE

Key dates

Filing date	Jul 22, 2021
Grant date	Nov 5, 2024
Priority date	—
Expiry date	Nov 1, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04S7/30
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An earphone including a proximity sensor, an acceleration sensor, and a signal analysis device. The signal analysis device identifies an approaching movement of the earphone to an object using the proximity sensor signal. The signal analysis device ascertains whether the approaching movement is a movement of the earphone to an ear of the user. By filtering the acceleration sensor signal, the signal analysis device generates a high-pass filtered acceleration signal and a low-pass filtered acceleration signal. The signal analysis device determines an end time of the approaching movement based on a stabilization of the acceleration, using the low-pass filtered acceleration signal. The signal analysis device confirms that the approaching movement is a movement of the earphone to an ear of the user based on changes in the high-pass filtered acceleration signal after the ascertained end time of the approaching movement.

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