EP 1468586 B1 20160601 - DIAGNOSTIC CIRCUIT FOR A TWEETER IN A LOUDSPEAKER COMBINATION
Title (en)
DIAGNOSTIC CIRCUIT FOR A TWEETER IN A LOUDSPEAKER COMBINATION
Title (de)
DIAGNOSESCHALTKREIS FÜR EINEN HOCHTON-LAUTSPRECHER EINER LAUTSPRECHERKOMBINATION
Title (fr)
CIRCUIT DE DIAGNOSTIC DESTINE A UN HAUTPARLEUR D'AIGUS D'UN ENSEMBLE DES HAUTPARLEURS
Publication
Application
Priority
- DE 0300105 W 20030116
- DE 10201517 A 20020117
Abstract (en)
[origin: WO03061333A2] The invention relates to a diagnostic circuit for a tweeter in a low-frequency final stage of a loudspeaker combination, in addition to a method for diagnosing the functional capability of the tweeter. In order to determine the functional capability of the tweeter in a relatively low-cost, reliable manner, a diagnostic circuit comprising the following is provided: a device that generates an HF signal (2) for emitting an HF voltage signal (s2), at least one connection (A1, A2) for a loudspeaker combination (4), a measuring resistance (R2), which forms a potentiometer circuit (R2, 4) with the loudspeaker combination (4) when the latter is connected to the connection (A1), in addition to a measuring device (10, 11, 12) for measuring a complex decreasing measurement voltage (UA1) in the potentiometer circuit (R2, 4) and for determining the condition of the tweeter (LS2) of the loudspeaker combination (4).
IPC 8 full level
H04R 29/00 (2006.01)
CPC (source: EP US)
H04R 29/001 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 03061333 A2 20030724; WO 03061333 A3 20040415; DE 10201517 A1 20030807; EP 1468586 A2 20041020; EP 1468586 B1 20160601; US 2005163326 A1 20050728
DOCDB simple family (application)
DE 0300105 W 20030116; DE 10201517 A 20020117; EP 03729411 A 20030116; US 50128805 A 20050303