Vorrichtung und Verfahren zur Unauffälligen Inspektion einer Audiovorrichtung

Details

Veröffentlichungs-Nr.

EP4734556

Anmeldetag

25. Oktober 2024

Veröffentlichung

29. April 2026

Rechtsraum

EP

IPC

H04R29/00

Abstract

Apparatus and methods unobtrusively inspect an audio device (100). A signal generator (270) receives a pulse signal (272) from a controller (250). A low pass filter circuit (308, 310) creates a first signal (312) in response to the pulse signal (272). The first signal (312) has a fade-in and fade-out discharging phase (436, 446) corresponding to upper and lower voltages of the pulse signal (272), respectively. A transistor (316) creates a second signal (318) in response to the first signal (312). The second signal (318) is a modified version of the first signal (312) that includes a leveled-off portion in the fade-in charging phase (432, 442, 434, 444). The audio device (100) creates a third signal (320) in response to the second signal (318). The third signal (320) is a resulting version of the second signal (318) subjected to an audio element (210) of the audio device (100). The controller (250) determines whether the third signal (320) indicates a fault condition of the audio device (100) in response to subjecting the second signal (318) to the audio element (210) of the audio device (100).

Anmelder

Firma

Siemens Schweiz AG

Land

🇨🇭 Schweiz

Fachgebiete