Verschiebungserkennungsvorrichtung für einen Lautsprecher und Audiosystem

Details

Veröffentlichungs-Nr.

EP4776652

Anmeldetag

9. Dezember 2025

Veröffentlichung

15. Juli 2026

Rechtsraum

EP

Abstract

A displacement-detecting device for a speaker includes a magnet fixed to a vibration body configured to vibrate by air vibration caused by vibration of a vibration system of the speaker, a sensor provided at a fixed body relative to a fixed system of the speaker, a displacement detector, and a displacement converter. The sensor is configured to detect a magnetic flux vector of the magnet acting on the sensor. The displacement detector is configured to detect a displacement of a vibration system of a passive radiator based on a detection value of the magnetic flux vector by the sensor. The displacement converter is configured to convert the displacement of the vibration system of the passive radiator to a displacement of the vibration system of the speaker.

Anmelder

Firma

Alps Alpine Co., Ltd.

Land

🇯🇵 Japan