Orientation Free Handsfree Device

• US 20140254817A1
• Filed: 03/07/2013
• Published: 09/11/2014
• Est. Priority Date: 03/07/2013
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Vilermo, Miikka Tapani, Laaksonen, Lasse Juhani, Eronen, Antti, Ramo, Anssi Sakari, Ozcan, Koray, Leppanen, Jussi Artturi
• Granted Patent: US 9,681,219 B2
• Time in Patent Office: Days
• US Class Current: 381/74
• CPC Class Codes: H04R 1/32 for obtaining desired directional characteristic only specially adapted for hearing aids H04R25/40
• CPC Class Codes: H04R 5/033 Headphones for stereophonic communication details thereof, e.g. relating to batteries, cables or control elements H04R1/10
• CPC Class Codes: H04S 7/304 For headphones

Abstract

Methods, apparatuses, and computer program products are provided to indicate or automatically configure headphone channel orientation based on a physical orientation determination. An apparatus is provided that is configured to at least determine an orientation of the headphone device; analyze the determined orientation; and provide an indication of the determined orientation or adjust the output channel configuration of the apparatus for the headphone device. The apparatus may be further configured to determine the orientation of the headphone device based on at least one of: a head turn position; a direction of one or more audio signals; a direction of movement, wherein the movement is determined based on a determination of acceleration or trajectory of the headphone device; two or more compass data, wherein at least one compass is located in each of the apparatus and the headphone device; and a difference in characteristics of one or more audio signals.

Claims

1. An apparatus comprising at least one processor and at least one memory including computer program instructions, the at least one memory and the computer program instructions configured to, with the at least one processor, cause the apparatus at least to:

determine an orientation of the headphone device;

analyze the determined orientation of the headphone device; and

provide an indication of the determined orientation or adjust the output channel configuration of the apparatus for the headphone device.

2. The apparatus according to claim 1, wherein the at least one memory and the computer program instructions configured to, with the at least one processor, further cause the apparatus to:

determine the orientation of the headphone device based on at least one of;

a head turn position;

a direction of one or more audio signals;

a direction of movement, wherein the movement is determined based on a determination of acceleration or trajectory of the headphone device;

two or more compass data, wherein at least one compass is located in each of the apparatus and the headphone device; and

a difference in characteristics of one or more audio signals.

3. The apparatus according to claim 2, wherein the at least one memory and the computer program instructions configured to, with the at least one processor, further cause the apparatus to:

receive at least two audio signals based on one or more sound sources from two or more microphones associated with a headphone device;

determine one or more directions based on the received at least two audio signals; and

analyze at least one of the determined one or more directions and the head turn position so as to determine an orientation of the headphone device.

4. The apparatus of claim 3, wherein determining the one or more directions based on the received at least two audio signals comprises analyzing at least one of:

a difference in audio signal levels of the at least two audio signals,

a difference in audio signal arrival times of the at least two audio signals, and

a difference in audio signal spectrums of the at least two audio signals.

5. The apparatus according to claim 3, wherein the head turn position is determined based on at least one of:

at least two or more microphone signals, one or more sensors within the headphone device, or a combination of the at least two or more microphone signals and the one or more sensors.

6. The apparatus according to claim 5, wherein the one or more sensors comprise at least one of an accelerometer, a compass, or a magnetometer.

7. The apparatus according to claim 2, wherein the at least one memory and the computer program instructions configured to, with the at least one processor, further cause the apparatus to:

output audio signals on channels of a headphone device;

analyze the one or more audio signal characteristics of the channels and the head turn position so as to determine an orientation of the headphone device.

8. The apparatus according to claim 7, wherein the analysis to determine the orientation comprising the analysis of the one or more signal characteristics is at least one of:

a difference in audio signal levels between the channels relative to the determined head turn position,

a difference in audio signal arrival times between the channels relative to the determined head turn position,

a difference in audio signal spectrums between the channels relative to the determined head turn position.

9. The apparatus according to claim 7, wherein the head turn position is determined based on at least one of:

the output audio signals, one or more sensors within the headphone device, or a combination of the output audio signals and the one or more sensors.

10. The apparatus according to claim 9, wherein the one or more sensors comprise at least one of an accelerometer, a compass, or a magnetometer.

11. The apparatus according to claim 1, wherein the apparatus comprises a part of the headphone device or an apparatus separate from the headphone device.

12. A method comprising:

determining an orientation of a headphone device;

analyzing the determined orientation of the headphone device; and

providing an indication of the determined orientation or adjusting the output channel configuration of the apparatus for the headphone device.

13. The method according to claim 12, wherein determining the orientation of the headphone device is based on at least one of:

a head turn position;

a direction of one or more audio signals;

a direction of movement, wherein the movement is determined based on a determination of acceleration or trajectory of the headphone device;

two or more compass data, wherein at least one compass is located in each of the apparatus and the headphone device; and

a difference in characteristics of one or more audio signals.

14. The method according to claim 13, further comprising:

receiving at least two audio signals based on one or more sound sources from two or more microphones associated with a headphone device;

determining one or more directions based on the received at least two audio signals; and

analyzing at least one of the determined one or more directions and the head turn position so as to determine an orientation of the headphone device.

15. The method according to claim 14, wherein determining the one or more directions based on the received at least two audio signals comprises analyzing at least one of:

a difference in audio signal levels of the at least two audio signals,

a difference in audio signal arrival times of the at least two audio signals, and

a difference in audio signal spectrums of the at least two audio signals.

16. The method according to claim 14, wherein the head turn position is determined based on at least one of:

at least two or more microphone signals, one or more sensors within the headphone device, or a combination of the at least two or more microphone signals and the one or more sensors, wherein the one or more sensors comprise at least one of an accelerometer, a compass, or a magnetometer.

17. The method according to claim 13, further comprising:

outputting audio signals on channels of a headphone device;

analyzing the one or more audio signal characteristics of the channels and the head turn position so as to determine an orientation of the headphone device.

18. The method according to claim 17, wherein the analysis to determine the orientation comprising the analysis of the one or more signal characteristics is at least one of:

a difference in audio signal levels between the channels relative to the determined head turn position,

a difference in audio signal arrival times between the channels relative to the determined head turn position,

a difference in audio signal spectrums between the channels relative to the determined head turn position.

19. The method according to claim 17, wherein the head turn position is determined based on at least one of:

the output audio signals, one or more sensors within the headphone device, or a combination of the output audio signals and the one or more sensors.

20. A computer program product comprising at least one non-transitory computer-readable storage medium bearing computer program instructions embodied therein for use with a computer, the computer program instructions comprising program instructions configured to:

determine an orientation of the headphone device;

analyze the determined orientation of the headphone device; and

provide an indication of the determined orientation or adjust the output channel configuration of the apparatus for the headphone device.