Hands-free Active Noise Canceling Device

• US 20120029912A1
• Filed: 07/27/2010
• Published: 02/02/2012
• Est. Priority Date: 07/27/2010
• Status: Abandoned Application

• Current Assignee: Voice Muffler Corporation
• Original Assignee: Voice Muffler Corporation
• Inventors: Almagro, Irving
• Application Number:
  US12/844,776
• Publication Number:
  US 20120029912A1
• Time in Patent Office: Days
• US Class Current: 704/226
• CPC Class Codes: G10K 11/17823 Reference signals, e.g. ambient acoustic environment
• CPC Class Codes: G10K 11/17857 Geometric disposition, e.g. placement of microphones
• CPC Class Codes: G10K 11/17861 using additional means for damping sound, e.g. using sound absorbing panels
• CPC Class Codes: G10K 11/17873 using a reference signal without an error signal, e.g. pure feedforward
• CPC Class Codes: G10K 11/17885 additionally using a desired external signal, e.g. pass-through audio such as music or speech
• CPC Class Codes: G10L 21/0208 Noise filtering
• CPC Class Codes: H04R 1/083 Special constructions of mouthpieces

Abstract

An invention for eliminating the noise generated by a user speaking into a microphonic instrument is disclosed herein. In a first embodiment, the invention comprises a soundproofed housing arranged to cover a user'"'"'s mouth region and a loudspeaker that outputs a processed sound wave having a phase that is opposite of the user'"'"'s voice thereby canceling out the user'"'"'s voice that was confined inside the housing. In a second embodiment, the invention comprises a soundproofed housing arranged to enclose a user'"'"'s mouth area, a microphone to capture the user'"'"'s speech, and a loudspeaker that outputs a processed sound wave having a phase that is opposite of the user'"'"'s voice thereby canceling out the user'"'"'s voice that was confined inside the housing.

Claims

1. A compact active noise cancellation device comprising a hollow housing having a closed end and a wide-open end whereby said wide-open end is adapted to be positioned over a user'"'"'s mouth area, said housing further comprising a loudspeaker that outputs a sound wave that is opposite in phase of said user'"'"'s voice thereby canceling a sound wave inside said housing.

2. The compact active noise cancellation device according to claim 1 wherein said device further comprises a microphone positioned at a suitable distance from said device to capture the speech of a user.

3. The compact active noise cancellation device according to claim 1 wherein said device can be pivotally mounted onto a helmet'"'"'s chin cup.

4. The compact active noise cancellation device according to claim 1 wherein said device can be pivotally attached to a headset'"'"'s boom.

5. The compact active noise cancellation device according to claim 1 wherein said housing further comprises a detachable housing with noise reducing properties.

6. The compact active noise cancellation device according to claim 1 wherein said device further comprises a connector jack or plug for connecting a detachable assembly having a loudspeaker to output a user'"'"'s translated speech.

7. The compact active noise cancellation device according to claim 1 wherein the electrical and electronic components of said device are associated with a sound processor positioned at a suitable distance from said housing.

8. The compact active noise cancellation device according to claim 7 wherein said sound processor further comprises an earphone to output a signal to said user.

9. The compact active noise cancellation device according to claim 2 wherein said microphone can further capture a speech of a person other than the user of said device.

10. A compact active noise cancellation device for use in a helmet arrangement comprising a hollow housing having a closed end and a wide-open end whereby said wide-open end is adapted to be positioned over a user'"'"'s mouth area, said housing further comprising:

a loudspeaker;

a helmet'"'"'s chin cup assembly further comprising a chin cup component and a strap arrangement;

and a support structure having one end that can be pivotally mounted onto said chin cup component and the other end fixed to said housing.

11. The compact active noise cancellation device according to claim 10 wherein said device can be detachable from said chin cup.

12. The compact active noise cancellation device according to claim 10 wherein said device further comprises a microphone located at a suitable distance from said device to capture a speech of a user.

13. The compact active noise cancellation device according to claim 10 wherein said device further comprises a connector jack or plug for connecting a detachable assembly having a loudspeaker to output a user'"'"'s translated speech.

14. The compact active noise cancellation device according to claim 10 wherein said housing further comprises a detachable housing with noise reducing properties.

15. The compact active noise cancellation device according to claim 10 wherein the electrical and electronic components of said device are associated with a sound processor positioned at a suitable distance from said housing.

16. The compact active noise cancellation device according to claim 15 wherein said sound processor further comprises an earphone to output a signal to said user.

17. The compact active noise cancellation device according to claim 12 wherein said microphone can further capture a speech of a person other than the user of said device.

18. A compact active noise cancellation device for use in a headset arrangement comprising a hollow housing having a closed end and a wide-open end whereby said wide-open end is adapted to be positioned over a user'"'"'s mouth area, said housing further comprising:

a loudspeaker;

a headset assembly further comprising a headband component and a boom unit;

and a support structure having one end that can be pivotally attached onto said boom and the other end fixed to said housing.

19. The compact active noise cancellation device according to claim 18 wherein said device further comprises a microphone located at a suitable distance from said device to capture a speech of a user.

20. The compact active noise cancellation device according to claim 18 wherein said device further comprises a connector jack or plug for connecting a detachable assembly having a loudspeaker to output a user'"'"'s translated speech.

21. The compact active noise cancellation device according to claim 18 wherein said housing further comprises a detachable housing with noise reducing properties.

22. The compact active noise cancellation device according to claim 18 wherein the electrical and electronic components of said device are associated with a sound processor positioned at a suitable distance from said housing.

23. The compact active noise cancellation device according to claim 22 wherein said sound processor further comprises an earphone to output a signal to said user.

24. The compact active noise cancellation device according to claim 19 wherein said microphone can further capture a speech of a person other than the user of said device.