Speakers and headphones related to vibrations in an audio system, and methods for operating same

Patent metadata

Field	Value
Publication number	US-9648412-B2
Application number	US-201514616639-A
Country	US
Kind code	B2
Filing date	Feb 6, 2015
Priority date	Feb 6, 2015
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

A speaker assembly includes a support structure and a tactile vibrator coupled to the support structure. The tactile vibrator includes a plurality of rigid members coupled to a plurality of suspension members. Each rigid member of the plurality of rigid members has at least one magnetic member coupled thereto for generating tactile vibrations during operation of the speaker assembly. A headphone includes the speaker assembly. A method of operating a speaker assembly includes driving a tactile vibrator having a plurality of magnetic members coupled to a plurality of rigid members and a plurality of suspension members to cause tactile vibrations in the speaker assembly.

First claim

What is claimed is:

1. A headphone, comprising:
a plurality of speaker assemblies including one speaker assembly for each ear of the user,
wherein each speaker assembly of the plurality includes:
an audio driver configured to produce sound at audible frequencies;
a first support structure; and
a tactile vibrator coupled to the first support structure and positioned with the audio driver within the speaker assembly and configured to generate tactile vibrations during operation of the speaker assembly, the tactile vibrator including:
a first rigid member;
a second rigid member, wherein the first rigid member is annular and concentric to the second rigid member;
a first suspension member coupled between the first rigid member and the first support structure;
a second suspension member coupled between the first rigid member and the second rigid member;
a second support structure coupled to the first rigid member to form a plurality of mass/spring systems;
a first magnetic member for a first mass/spring system coupled to the first support structure;
a second magnetic member for the first mass/spring system coupled to the second support structure;
a third magnetic member for a second mass/spring system coupled to the second support structure; and
a fourth magnetic member for the second mass/spring system is coupled to the second rigid member.

2. The speaker assembly of claim 1 , wherein the respective rigid members and the suspension members form a plurality of individual mass/spring systems that exhibit a different resonant frequency.

3. The speaker assembly of claim 1 , wherein at least one of the first rigid member or the second rigid member has a plurality of magnetic members coupled thereto.

4. The speaker assembly of claim 1 , wherein the respective magnetic members of the first and second mass/spring systems are configured to be driven independently from each other.

5. The speaker assembly of claim 4 , further comprising a controller having a first channel that drives the respective magnetic members of the first mass/spring system, and a second channel that drives the respective magnetic members of the second mass/spring system.

6. The speaker assembly of claim 1 , wherein the at first magnetic member includes a coil coupled to the first support structure, and the second magnetic member includes a magnet coupled to the second support structure.

7. The speaker assembly of claim 1 , wherein the first magnetic member includes a magnet coupled to the first support structure, and the second magnetic member includes a coil coupled to the second support structure.

8. The speaker assembly of claim 1 , wherein the tactile vibrator further includes an additional suspension member coupled to an additional rigid member that is passively driven without a magnetic member coupled thereto.

9. The headphone of claim 1 , further comprising a third rigid member and a third suspension member coupled between the second rigid member and the third rigid member, wherein the second rigid member is annular and concentric to the third rigid member.

10. A headphone including at least one speaker assembly and a device for operatively coupling the at least one speaker assembly with a media player configured to send an electrical audio signal to the at least one speaker assembly, the at least one speaker assembly comprising:
an audio driver;
a first support structure; and
a tactile vibrator coupled to the first support structure with the audio driver within the at least one speaker assembly, the tactile vibrator including:
a first rigid member coupled to the first support structure via a first support member;
a second rigid member coupled to the first rigid member via a second support member;
a second support structure coupled to the first rigid member to form a plurality of mass/spring systems;
at least one magnetic member coupled to the first support structure for a first mass/spring system;
at least one magnetic member coupled to the second support structure for the first mass/spring system;
at least one magnetic member coupled to the second support structure for a second mass/spring system; and at least one magnetic member coupled to the second rigid member for the second mass/spring system;
wherein the magnetic members of each of the first and second mass/spring systems are configured to be displaced and generate tactile vibrations responsive to receipt of the electrical audio signal.

11. The headphone of claim 10 , further comprising a headband, the at least one speaker assembly attached to the headband.

12. The headphone of claim 10 , wherein the at least one speaker assembly comprises an earbud speaker assembly configured to fit within an ear of a person using the headphone.

13. The headphone of claim 10 , wherein the at least one speaker assembly further comprises:
a housing; and
a cushion attached to the housing and configured to be disposed on or over an ear of a person using the headphone.

14. The headphone of claim 10 , wherein the tactile vibrator further includes:
a third rigid member coupled to the second rigid member via a third support member; and
at least one magnetic member coupled to the third rigid member for a third mass/spring system.

15. The headphone of claim 14 , further comprising a controller configured to drive coils associated with the magnetic members of each of the first, second, and third mass/spring systems according to different operational modes.

16. The headphone of claim 15 , wherein the different operational modes result in a plurality of different resonant frequencies for the tactile vibrator.

17. The headphone of claim 16 , wherein the different resonant frequencies are dependent on a combination of different drive frequencies for the magnetic members of each of the first, second, and third mass/spring systems.

18. The headphone of claim 14 , wherein at least two of the first rigid member, the second rigid member, and the third rigid member have different masses.

19. The headphone of claim 1 , wherein at least two of the first suspension member, the second suspension member, and the third suspension member have different spring constants.

20. A method of operating a headphone including a plurality of speaker assemblies, the method comprising:
driving a tactile vibrator coupled with a first support structure and a second support structure to form a plurality of mass/spring systems, and positioned within each speaker assembly to cause tactile vibrations in the respective speaker assembly, each tactile vibrator having:
a first rigid member coupled to the first support structure via a first support member, and coupled to the second support structure;
a second rigid member coupled to the first rigid member via a second support member;
at least one magnetic member coupled to the first support structure for a first mass/spring system;
at least one magnetic member coupled to the second support structure for the first mass/spring system; at least one magnetic member coupled to the second support structure for a second mass/spring system; and
at least one magnetic member coupled to the second rigid member for the second mass/spring system; and
driving a respective audio driver positioned within each speaker assembly of the plurality causing audible sound waves to be produced responsive to an input audio signal.

21. The method of claim 20 , wherein driving the tactile vibrator is performed during a first mode including:
driving the magnetic members

Assignees

• Skullcandy Inc

Inventors

• Timothy John
• Noertker Sam

Classifications

• H04R1/1075

  Mountings of transducers in earphones or headphones · CPC title

• H04R9/063

  using a plurality of acoustic drivers (H04R1/24 and H04R1/403 take precedence) · CPC title

• H04R2400/03

  Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones · CPC title

• H04R9/025

  Magnetic circuit · CPC title

• H04R1/1008 Primary

  Earpieces of the supra-aural or circum-aural type · CPC title