US 12,439,209 B2
Speaker with improved frequency response and related electronic sound signal circuit, sound system and production method
Hong-Bi Dong Nguyen, Vienna (AT); and Friedrich Reining, Vienna (AT)
Assigned to Sound Solutions International (Zhenjiang) Co., Ltd., Zhenjiang (CN)
Filed by Sound Solutions International (Zhenjiang) Co., Ltd., Zhenjiang (CN)
Filed on Jun. 6, 2023, as Appl. No. 18/206,225.
Claims priority of application No. A 50411/2022 (AT), filed on Jun. 10, 2022.
Prior Publication US 2023/0403512 A1, Dec. 14, 2023
Int. Cl. H04R 9/04 (2006.01); H04R 7/04 (2006.01); H04R 9/02 (2006.01)
CPC H04R 9/046 (2013.01) [H04R 7/04 (2013.01); H04R 9/025 (2013.01); H04R 9/045 (2013.01); H04R 2209/024 (2013.01); H04R 2209/041 (2013.01)] 39 Claims
OG exemplary drawing
 
1. A speaker, comprising:
a coil arrangement with at least two voice coils, wherein each of the voice coils has an electrical conductor in the shape of loops running around a coil axis in a loop section, wherein the voice coils are annular when viewed in a direction parallel to the coil axis each having an inner circumference and an outer circumference and wherein the voice coils are arranged over one another in said direction;
a magnet system being designed to generate a magnetic field transverse to the conductors of the voice coils in the loop section; and
a membrane, which is fixed to the coil arrangement and to the magnet system, wherein the membrane forms a first connector between the coil arrangement and the magnet system with a first compliance (c1) and wherein the membrane together with the coil arrangement causes a first resonance frequency (fres1) for an oscillation of the membrane in a direction parallel to the coil axis,
wherein the speaker in addition comprises a second connector with a second compliance (c2), wherein the second connector connects the voice coils of the coil arrangement, wherein the second connector together with the voice coils of the coil arrangement causes a second resonance frequency (fres2) for the oscillation of the membrane in a direction parallel to the coil axis and wherein the second resonance frequency (fres2) is above the first resonance frequency (fres1).