System and method for providing environmental specific noise reduction algorithms

• US 20070041589A1
• Filed: 08/17/2005
• Published: 02/22/2007
• Est. Priority Date: 08/17/2005
• Status: Abandoned Application

• Current Assignee: Cellpoint Connect (Canada), Inc.
• Original Assignee: Gennum Corporation
• Inventors: Patel, Atin, Ali, Kamal, Smith, Cameron, Binapal, Sukhminder, Mileski, Randall, Ganguli, Gora
• Application Number:
  US11/205,403
• Publication Number:
  US 20070041589A1
• Time in Patent Office: Days
• US Class Current: 381/73.100
• CPC Class Codes: G10L 2021/02165 Two microphones, one receiving mainly the noise signal and the other one mainly the speech signal
• CPC Class Codes: G10L 21/02 Speech enhancement, e.g. noise reduction or echo cancellation reducing echo effects in line transmission systems H04B3/20; echo suppression in hands-free telephones H04M9/08
• CPC Class Codes: H04M 1/6066 including a wireless connection
• CPC Class Codes: H04R 1/1083 Reduction of ambient noise active noise reduction per se G10K11/175; protective devices for the ear, e.g. providing acoustic protection A61F11/06

Abstract

In accordance with the teachings described herein, systems and methods are provided for providing environmental specific noise reduction algorithms (ESNRAs) in a head-mounted device. A network server may be used to store a plurality of ESNRAs. One or more of the ESNRAs may be downloaded from the network server for use in the head-mounted device. The head-mounted device may use one or more of the downloaded ESNRAs to filter environmental noise from an audio signal.

Claims

1. A system for providing environment specific noise reduction in a head-mounted device comprising:

a network server operable to communicate over a network, and operable to store a plurality of environment specific noise reduction algorithms (ESNRAs), an ESNRA being a preset algorithm that is designed to reduce noise patterns that are specific to selected environments; and

a network device operable to communicate with the network, and operable to download one or more of the plurality of ESNRAs from the network server for use in a head-mounted device.

2. The system of claim 1, further comprising:

a head-mounted device operable to receive the downloaded ESNRAs, and to filter received environmental sounds using one or more of the downloaded ESNRAs.

3. The system of claim 2, wherein the head-mounted device is operable to transmit a filtered audio signal to a user.

4. The system of claim 2, wherein the head-mounted device is operable to transmit a filtered audio signal to an external device.

5. The system of claim 2, wherein the network device is part of the head-mounted device.

6. The system of claim 1 further comprising an algorithm generating processor operable to receive sound recordings and generate ESNRAs specifically tailored to reduce noise in the sound recordings, and operable to store the algorithms on the network server.

7. The system of claim 1, wherein the one or more of the plurality of ESNRAs stored on the network server are transferred to an external storage media, and transferred via the external storage media to a network device.

8. The system of claim 2, the head-mounted device further comprising:

a processor;

wherein the processor is operable to recognize an appropriate ESNRA to reduce the noise in an audio signal, is operable to apply the appropriate ESNRA to the audio signal, and is operable to transmit a filtered audio signal to a user.

9. The system of claim 2, the head-set further comprising:

a microphone;

wherein the head-mounted device is operable to record audio signals picked up by the microphone.

10. The system of claim 9, wherein the recorded audio signals are transferred to a third party to generate an ESNRA based on the recorded audio signals.

11. The system of claim 1, further comprising:

a recording device;

wherein the recording device is operable to record audio signals.

12. The system of claim 11, wherein the recorded audio signals are transferred to a third party to generate an ESNRA based on the recorded audio signals.

13. The system of claim 12, wherein the generated ESNRA is transferred to the head-mounted device.

14. The system of claim 13, wherein the custom ESNRA is transferred to the head-mounted device by the third party uploading the custom ESNRA to an internet web-page, the network device downloading the custom ESNRA from the internet web-page, and the network device transferring the custom ESNRA to the head-mounted device.

15. A network server for providing environment specific noise reduction algorithms (ESNRAs) for use by a head-mounted device, comprising:

a processor operable to store ESNRAs in memory, and operable to communicate over a network;

wherein the ESNRAs may be downloaded over the network from the network server for use in the head-mounted device;

wherein the head-mounted device is operable to use the downloaded ESNRAs to filter environmental noise from an audio signal.

16. The network server of claim 15, wherein the server is accessible via an internet web-page.

17. The network server of claim 15, wherein a network device is operable to download an ESNRA over the network.

18. The network server of claim 17, wherein the network device is a personal computer.

19. The network server of claim 17, wherein the network device is a hand-held personal data assistant.

20. The network server of claim 17, wherein the network device is a cellular phone.

21. The network server of claim 17, wherein the network device is part of a head-mounted device.

22. A head-mounted device for providing environment specific noise reduction comprising:

a memory device for storing a plurality of environment-specific noise reduction algorithms (ESNRAs);

a user input device operable to select one or more of the ESNRAs;

a processor operable to filter environmental sounds using the selected ESNRA to create a filtered audio signal.

23. The head-mounted device of claim 22, further comprising one or more speakers transmitting the filtered audio signal to a user.

24. The head-mounted device of claim 23, further comprising communications circuitry for communicating with an external device, wherein the head-mounted device is operable to transmit the filtered audio signal to the external device.

25. The head-mounted device of claim 24, wherein the external device is a cellular phone.

26. The head-mounted device of claim 22, wherein the device is operable to communicate with a network device, and to receive ESNRAs from the network device.

27. The head-mounted device of claim 22, wherein the user input device is operable to select a plurality of ESNRAs, and the processor is operable to filter environmental sounds using the selected plurality of ESNRAs.

28. The head-mounted device of claim 22,

wherein the head-mounted device is operable in a communications mode;

wherein in the communications mode the processor is operable to receive an audio signal from an external device, is operable to filter the audio signal by using the selected ESNRA, and is operable to transmit a filtered audio signal from the external device to a user via the speaker.

29. The head-mounted device of claim 22, further comprising:

a microphone;

wherein the head-mounted device is operable in a communications mode;

wherein in the communications mode the processor is operable to receive an audio signal from the microphone, is operable to filter the audio signal by using a user-selected ESNRA, and is operable to transmit a filtered audio signal to an external device.

30. The head-mounted device of claim 28, wherein in the communications mode the processor is further operable to receive an audio signal from the microphone, to filter the audio signal by using a user-selected ESNRA, and to transmit a filtered audio signal to an external device.

31. The head-mounted device of claim 30, wherein in the communications mode processor is further operable to process an audio signal received by the microphone to control the directionality of the microphone such that the voice of the head-mounted device user is prominent in the audio signal.

32. The head-mounted device of claim 22, further comprising:

a microphone;

wherein the processor is operable to receive an audio signal from the microphone, is operable to filter the audio signal by using the selected ESNRA, and is operable to transmit a filtered audio signal to a user via the speaker.

33. The head-mounted device of claim 32, wherein the head-mounted device is operable in a hearing instrument mode;

wherein in the hearing instrument mode the processor is operable to process signals to compensate for a hearing impairment of a user.

34. The head-mounted device of claim 32, wherein in the hearing instrument mode the processor is operable to receive an audio signal from the microphone, to filter the audio signal by using the selected ESNRA, and to transmit a filtered audio signal to an external device;

wherein the processor is operable to receive an audio signal from an external device, to filter the audio signal by using a user-selected ESNRA, and is operable to transmit a filtered audio signal from the external device to a user via the speaker; and

wherein the processor is further operable to process the signals received from the external device to compensate for a hearing impairment of a user.

35. The head-mounted device of claim 32,

wherein in the hearing instrument mode the processor is operable to process an audio signal received by the microphone to control the directionality of the microphone such that the voice of the head-mounted device user is prominent in the audio signal.

36. The head-mounted device of claim 33,

wherein in the hearing instrument mode the processor is operable to process an audio signal received by the microphone to control the directionality of the microphone such that the voice of the head-mounted device user is prominent in the audio signal.

37. The head-mounted device of claim 34,

wherein in the hearing instrument mode the processor is further operable to process an audio signal received by the microphone to control the directionality of the microphone such that the voice of the head-mounted device user is prominent in the audio signal.

38. The head-mounted device of claim 30, wherein the external device is a cellular telephone.

39. The head-mounted device of claim 34, wherein the external device is a cellular telephone.

40. The head-mounted device of claim 22 further comprising:

a microphone;

wherein the head-mounted device is operable to record environmental noise picked up by the microphone.

41. The head-mounted device of claim 40, wherein the recording is transmitted to a third party to generate an ESNRA based on the recorded audio signal.

42. The head-mounted device of claim 41, wherein the generated ESNRA is transferred to the head-mounted device.

43. The head-mounted device of claim 22 further comprising:

a recording device;

wherein the recording device is operable to record environmental noise.

44. The head-mounted device of claim 43, wherein the recording is transmitted to a third party to generate an ESNRA based on the recorded audio signal.

45. The head-mounted device of claim 44 wherein the generated ESNRA is transferred to the head-mounted device.

46. The head-mounted device of claim 22, wherein the head-mounted device is operable to filter environmental sounds by utilizing a custom ESNRA that was created on a personal computing device from a recording made by a user.