Adaptive noise cancelling

• US 20100172510A1
• Filed: 01/02/2009
• Published: 07/08/2010
• Est. Priority Date: 01/02/2009
• Status: Abandoned Application

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Juvonen, Anssi M.
• Application Number:
  US12/319,184
• Publication Number:
  US 20100172510A1
• Time in Patent Office: Days
• US Class Current: 381/71.600
• CPC Class Codes: G10K 11/17821 characterised by the analysis of the input signals only
• CPC Class Codes: G10K 11/17857 Geometric disposition, e.g. placement of microphones
• CPC Class Codes: G10K 11/17873 using a reference signal without an error signal, e.g. pure feedforward
• CPC Class Codes: G10K 11/17875 using an error signal without a reference signal, e.g. pure feedback
• CPC Class Codes: G10K 2210/1282 Automobiles

Abstract

Disclosed herein is an apparatus. The apparatus includes electronic circuitry and a noise cancelling system. The noise cancelling system is connected to the electronic circuitry. The noise cancelling system includes a positioning interface. The noise cancelling system is configured to provide a noise cancelling signal based on, at least partially, the positioning interface.

Claims

1. An apparatus comprising electronic circuitry and a noise cancelling system connected to the electronic circuitry, wherein the noise cancelling system comprises a positioning interface, and wherein the noise cancelling system is configured to provide a noise cancelling signal based on, at least partially, the positioning interface.

2. An apparatus as in claim 1 wherein the noise cancelling system further comprises a microphone and an audio interface.

3. An apparatus as in claim 2 wherein the microphone is proximate the audio interface, and wherein the microphone is configured to receive an ambient sound signal.

4. An apparatus as in claim 2 wherein the noise canceling system is configured to adjust a volume of the audio interface based on, at least partially, the positioning interface.

5. An apparatus as in claim 2 wherein the noise cancelling system further comprises a feedback system, and wherein the feedback system is configured to receive a signal from the microphone.

6. An apparatus as in claim 1 wherein the positioning interface comprises a global positioning system (GPS).

7. An apparatus as in claim 1 wherein the apparatus further comprises a network interface, and wherein the apparatus is configured to receive a noise profile from a network service through the network interface.

8. An apparatus as in claim 7 wherein the noise cancelling system is configured to provide a noise cancelling signal based on, at least partially, the noise profile.

9. An apparatus as in claim 1 further comprising a head set interface, wherein the noise cancelling system is configured to provide the noise cancelling signal through the head set interface.

10. An apparatus as in claim 1 wherein the apparatus is a mobile electronic device.

11. A method comprising:

receiving an ambient sound signal by a microphone;

receiving a context-based noise information;

generating a noise profile based on the context-based noise information; and

computing a noise cancelling signal based, at least in part, on the ambient sound signal and the noise profile.

12. A method as in claim 11 wherein the receiving of the context-based noise information comprises receiving the context-based noise information from a GPS system.

13. A method as in claim 11 wherein the generating of the noise profile further comprises retrieving a noise profile from a memory.

14. A method comprising:

receiving a position signal;

generating a noise reduction profile based on the position signal; and

sending the noise reduction profile to a noise cancelling system of a device.

15. A method as in claim 14 wherein the receiving of the position signal further comprises receiving a signal from a positioning system.

16. A method as in claim 14 wherein the receiving of the position signal further comprises a user selecting a position.

17. A method as in claim 14 wherein the sending of the noise reduction profile further comprises sending the noise reduction profile from a network service to a portable device through a network connection.

18. A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine for performing operations to adaptively reduce noise, the operations comprising:

receiving a position signal;

generating a noise reduction profile based on the position signal; and

sending the noise reduction profile to a noise cancelling system.

19. A program storage device as in claim 18 further comprising providing a noise canceling waveform at an audio interface of a device.

20. A program storage device as in claim 18 wherein the receiving of the position signal further comprises receiving context-based noise information.