Global Patent Index - EP 1158834 B1

EP 1158834 B1 20110119 - High frequency loudspeaker

Title (en)

High frequency loudspeaker

Title (de)

Hochtonlautsprecher

Title (fr)

Haut-parleur à haute fréquence

Publication

EP 1158834 B1 20110119 (DE)

Application

EP 01107224 A 20010317

Priority

DE 10025460 A 20000523

Abstract (en)

[origin: EP1158834A2] The driver is constructed for excitation at higher sound frequencies. The composite sandwich panel (3) is constructed to propagate flexural waves and is supported freely without damping by holders (12). The holders are constructed to avoid damping at higher frequencies.

IPC 8 full level

H04R 23/00 (2006.01); H04R 5/02 (2006.01); H04R 7/10 (2006.01); H04R 7/16 (2006.01); H04R 1/24 (2006.01); H04R 7/04 (2006.01)

CPC (source: EP)

H04R 7/10 (2013.01); H04R 7/16 (2013.01); H04R 1/24 (2013.01); H04R 7/045 (2013.01); H04R 2307/021 (2013.01); H04R 2307/025 (2013.01); H04R 2307/027 (2013.01); H04R 2307/029 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 1158834 A2 20011128; EP 1158834 A3 20070502; EP 1158834 B1 20110119; DE 10025460 A1 20011206; DE 10025460 B4 20040318; DE 50115777 D1 20110303; US 2001055403 A1 20011227; US 6888946 B2 20050503

DOCDB simple family (application)

EP 01107224 A 20010317; DE 10025460 A 20000523; DE 50115777 T 20010317; US 83888601 A 20010420