Dual compression driver with cone diaphragm
AssigneeHarman International Industries, Incorporated
InventorsAlexander Voishvillo, Brian Cummins McLaughlin
Life of this patent
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Abstract
Systems and methods are herein described for a coaxial loudspeaker. The loudspeaker may comprise a compression driver having a first diaphragm assembly including a first magnet, and a first diaphragm coupled to a first voice coil, and a second diaphragm assembly including a second magnet and a second diaphragm coupled to a second voice coil. The compression driver may further comprise a third diaphragm assembly including a third diaphragm coupled to a third voice coil.
Claims18
A loudspeaker, comprising:
- a compression driver having a first diaphragm assembly including a first magnet, and a first diaphragm coupled to a first voice coil, and a second diaphragm assembly including a second magnet and a second diaphragm coupled to a second voice coil;
- and
- a third diaphragm assembly including a third diaphragm coupled to a third voice coil,
- wherein motion of the first voice coil generates a first electromagnetic field (EMF), motion of the second voice coil generates a second EMF, and motion of the third voice coil generates a third EMF;
- wherein the first magnet generates a first magnetic field and the second magnet generates a second magnetic field;
- and
- wherein interaction of the first EMF and the first magnetic field oscillate the first diaphragm, interaction of the second EMF and the second magnetic field oscillate the second diaphragm, and interaction of the third EMF and the second magnetic field oscillate the third diaphragm.
9-11. (canceled)
A loudspeaker, comprising:
- a first voice coil gap;
- a second voice coil gap;
- and
- a third voice coil gap,
- wherein a first magnet creates a first magnetic field in the first voice coil gap and a second magnet creates a second magnetic field in the second voice coil gap and the third voice coil gap;
- and
- wherein the first voice coil gap is formed between a rear top plate and a pole piece of a rear back plate, the second voice coil gap is formed between a front back plate and a phasing plug, and the third voice coil gap is formed between a front top plate and the phasing plug.
(canceled)
A method for a loudspeaker, comprising:
- applying an electrical signal to a contact, wherein the contact is coupled to a first voice coil, a second voice coil, and a third voice coil;
- translating the electrical signal into an acoustic signal using a first magnet and a second magnet;
- and
- outputting the acoustic signal in a low-mid frequency range and a high frequency range,
- wherein the electrical signal generates a first electromagnetic field (EMF) at the first voice coil, a second EMF at the second voice coil, and a third EMF at the third voice coil;
- wherein the second magnet generates a second magnetic field which interacts with the second EMF to oscillate a second diaphragm coupled to the second voice coil;
- and
- wherein the second magnetic field further interacts with the third EMF to oscillate a third diaphragm coupled to the third voice coil.
(canceled)
(canceled)
Dependencies are inferred from the claim text.