Global Patent Index - EP 1841278 A1

EP 1841278 A1 2007-10-03 - Loudspeaker with low-frequency oscillation

Title (en)

Loudspeaker with low-frequency oscillation

Title (de)

Lautsprecher mit niederfrequenter Schwingung

Title (fr)

Haut-parleur avec oscillation à basse fréquence

Publication

EP 1841278 A1 (EN)

Application

EP 06006235 A

Priority

EP 06006235 A

Abstract (en)

A loudspeaker with low-frequency oscillation, comprising: a housing (21) with a ring portion (211) extending inwardly from the bottom thereof; and a reed element (22) having a top end attached to an oscillatable sound assembly, the reed element (22) further having an external ring (221) and two vibration arms (222) symmetrically extending from the internal side of the external ring (221) to the internal side of the loudspeaker in a bent manner, each of the vibration arms (222) having a free end (223) extending to the center of the reed element (22), the oscillatable sound assembly including either a magnetic ring (25) or a coil (28) disposed within the housing (21), the ring portion (211) being attached to either another coil corresponding to the magnetic ring (25) or another magnetic ring corresponding to the coil (28), whereby, when the coil (28) is fed with electric current, a magnetic force is created to impart an up and down vibration to the oscillatable sound assembly, thereby enhancing the effect of the low-frequency sound field as well as the resonance effect.

IPC 8 full level (invention and additional information)

H04R 1/28 (2006.01); H04R 1/10 (2006.01)

CPC (invention and additional information)

H04R 1/2811 (2013.01); H04R 11/02 (2013.01); H04R 1/1016 (2013.01); H04R 2400/03 (2013.01); H04R 2400/07 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK YU

EPO simple patent family

EP 1841278 A1 20071003; EP 1841278 B1 20081210; AT 417479 T 20081215; DE 602006004171 D1 20090122

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