Dual asymmetric compression driver

Patent metadata

Field	Value
Publication number	US-10531200-B2
Application number	US-201615760962-A
Country	US
Kind code	B2
Filing date	Oct 21, 2016
Priority date	Oct 23, 2015
Publication date	Jan 7, 2020
Grant date	Jan 7, 2020

Abstract

In at least one embodiment, a dual asymmetric compression driver is provided. The dual asymmetric compression driver includes a first driver assembly and a second driver assembly. The first driver assembly is positioned about a central axis and includes a first annular diaphragm having a first planar section extending at a first clamping distance. The second driver assembly is positioned about the central axis and includes a second annular diaphragm having a second planar section extending at a second clamping distance. The first clamping distance is different from the second clamping distance causing the first asymmetric driver to provide a first audio output in a first frequency range and the second driver assembly to provide a second audio output in a second frequency range.

First claim

What is claimed is:

1. A dual asymmetric compression driver comprising:
a first driver assembly being positioned about a central axis and including a first annular diaphragm having a first planar section extending at a first clamping distance; and a second driver assembly being positioned about the central axis and including a second annular diaphragm having a second planar section extending at a second clamping distance, the first clamping distance being different from the second clamping distance causing the first driver assembly to provide a first audio output in a first frequency range and the second driver assembly to provide a second audio output in a second frequency range,
wherein the first frequency range is different than the second frequency range, and
wherein the first annular diaphragm includes a first thickness and the second annular diaphragm includes a second thickness, the first thickness being different than the second thickness.

2. The dual asymmetric compression driver of claim 1 wherein the first clamping distance corresponds to a distance of the first planar section of the first annular diaphragm that vibrates while providing the first audio output in the first frequency range.

3. The dual asymmetric compression driver of claim 2 wherein the second clamping distance corresponds to a distance of the second planar section of the second annular diaphragm that vibrates while providing the second audio output in the second frequency range.

4. The dual asymmetric compression driver of claim 1 wherein the first annular diaphragm includes a third planar section extending at a third clamping distance that is different than the first clamping distance.

5. The dual asymmetric compression driver of claim 4 wherein the first planar section is positioned closer to the central axis than the third planar section.

6. The dual asymmetric compression driver of claim 4 wherein the first annular diaphragm further includes a non-planar section positioned between the first planar section and the third planar section.

7. The dual asymmetric compression driver of claim 4 wherein the second annular diaphragm includes a fourth planar section extending at a fourth clamping distance that is different than the second clamping distance.

8. The dual asymmetric compression driver of claim 7 wherein the first clamping distance and the third clamping distance of the first annular diaphragm are larger than the second clamping distance and the fourth clamping distance of the second annular diaphragm.

9. The dual asymmetric compression driver of claim 7 wherein the second planar section is positioned closer to the central axis than the fourth planar section.

10. The dual asymmetric compression driver of claim 7 wherein the second annular diaphragm includes a non-planar section positioned between the second planar section and the fourth planar section.

11. A dual asymmetric compression driver comprising:
a first driver assembly being aligned on a central axis and including a first annular diaphragm having a first planar section extending at a first clamping distance, the first driver assembly providing a first audio output in a first frequency range; and
a second driver assembly being aligned on the central axis and including a second annular diaphragm having a second planar section extending at a second clamping distance, the second driver assembly providing a second audio output in a second frequency range, the first clamping distance being different from the second clamping distance,
wherein the first frequency range is different than the second frequency range,
wherein the first annular diaphragm is arranged at a first thickness,
wherein the second annular diaphragm is arranged at a second thickness, and
wherein the first thickness is different than the second thickness.

12. The dual asymmetric compression driver of claim 11 wherein the first clamping distance corresponds to a distance of the first planar section of the first annular diaphragm that vibrates while providing the first audio output in the first frequency range.

13. The dual asymmetric compression driver of claim 12 wherein the second clamping distance corresponds to a distance of the second planar section of the second annular diaphragm that vibrates while providing the second audio output in the second frequency range.

14. The dual asymmetric compression driver of claim 11 wherein the first annular diaphragm includes a third planar section extending at a third clamping distance that is different than the first clamping distance.

15. The dual asymmetric compression driver of claim 14 wherein the first planar section is positioned closer to the central axis than the third planar section.

16. The dual asymmetric compression driver of claim 14 wherein the second annular diaphragm includes a fourth planar section extending at a fourth clamping distance that is different than the second clamping distance.

17. The dual asymmetric compression driver of claim 16 wherein the first clamping distance and the third clamping distance of the first annular diaphragm are larger than the second clamping distance and the fourth clamping distance of the second annular diaphragm.

18. The dual asymmetric compression driver of claim 16 wherein the second planar section is positioned closer to the central axis than the fourth planar section.

19. A dual asymmetric compression driver comprising:
a front driver assembly being aligned on a central axis and including a front annular diaphragm having a front inner planar section extending at a front inner clamping distance and a front outer planar section extending at a front outer clamping distance to provide a front audio signal in a first frequency range; and
a rear driver assembly being aligned on the central axis and including a rear annular diaphragm having a rear inner planar section extending at a rear inner clamping distance to provide a rear audio signal in a second frequency range and a rear outer planar section extending at a rear outer clamping distance, wherein front inner clamping distance and the front outer clamping distance is larger than the rear inner clamping distance and the rear outer clamping distance, respectively,
where the first frequency range is different than the second frequency range,
wherein the front annular diaphragm includes a first thickness,
wherein the rear annular diaphragm includes a second thickness, and
wherein the first thickness is different than the second thickness.

Assignees

• Harman Int Ind

Inventors

• Voishvillo Alexander

Classifications

• H04R1/345

  for loudspeakers · CPC title

• H04R7/04

  Plane diaphragms · CPC title

• H04R1/24

  Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges · CPC title

• H04R7/22 Primary

  Clamping rim of diaphragm or cone against seating · CPC title

• H04R2201/34

  Directing or guiding sound by means of a phase plug · CPC title