AUDIO SPEAKER

• US 20150281866A1
• Filed: 03/30/2015
• Published: 10/01/2015
• Est. Priority Date: 03/31/2014
• Status: Active Grant

• Current Assignee: Bose Corporation
• Original Assignee: Bose Corporation
• Inventors: Williams, Chester Smith, Litovsky, Roman N., Rip, Bojan, Burge, Benjamin D.
• Granted Patent: US 9,554,201 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04R 1/026 Supports for loudspeaker casings
• CPC Class Codes: H04R 2201/025 Transducer mountings or cabinet supports enabling variable orientation of transducer of cabinet
• CPC Class Codes: H04R 2420/03 Connection circuits to selectively connect loudspeakers or headphones to amplifiers

Abstract

An audio device includes a housing having first and second support surfaces for supporting the device at different orientations relative to the surface on which the device is placed, a driver to output sound in a radiating pattern associated with a first axis of the driver, and an orientation sensor to detect a direction of a force of gravity. A control circuit coupled to the driver and the orientation sensor determines the direction of the force of gravity relative to the first axis and whether the first axis is oriented to one of a first angle of elevation associated with physically supporting the device by the first surface and a second angle of elevation associated with physically supporting the device by the second surface. The circuit can alters the output by the driver based on the first axis being oriented to the first or second angles of elevation.

Claims

1. An audio device for placement on a surface, comprising:

a housing incorporating a first support surface and a second support surface by which the audio device may be physically supported, the first and second support surfaces providing the audio device with different orientations relative to the surface on which the audio device is placed;

a first acoustic driver incorporated into the housing to acoustically output sound in a radiating pattern associated with a first axis of the first acoustic driver;

an orientation sensor incorporated into the housing to detect a direction of a force of gravity; and

a control circuit coupled to the first acoustic driver and the orientation sensor, the control circuit to;

operate the orientation sensor to determine the direction of the force of gravity relative to the first axis;

determine whether the first axis is oriented to one of a first angle of elevation associated with physically supporting the audio device by the first support surface and a second angle of elevation associated with physically supporting the audio device by the second support surface;

wherein the first and second angles of elevation are different and non-zero relative to the surface on which the device is placed and

alter a characteristic of acoustic output of sound by the first acoustic driver based on the first axis being oriented to one of the first and second angles of elevation.

2. The audio device of claim 1, the housing comprising a side that comprises the first and second support surfaces, the first and second support surfaces meeting at an angle.

3. The audio device of claim 2, the housing having a generally elongate shape associated with a longitudinal axis extending lengthwise along the elongate shape, wherein:

transitioning from physically supporting the audio device by the first support surface to physically supporting the audio device by the second support surface entails rotating the housing about the longitudinal axis; and

weights of the first acoustic driver and at least one other component of the audio device are distributed to enable stability in physically supporting the audio device by either the first or second support surfaces.

4. The audio device of claim 1, the housing comprising a first side that comprises the first support surface and a second side opposite the first side, the second side comprising the second support surface, and the first and second surfaces having asymmetric orientations such that the first and second sides are of asymmetric configuration.

5. The audio device of claim 1, wherein:

the housing has a generally elongate shape defining a first end comprising a third support surface and a second end comprising a fourth support surface, the third and fourth support surfaces having different orientations;

the first and second sides extend lengthwise along the elongate shape; and

the control circuit determines whether the first axis is oriented to one of the first angle of elevation, the second angle of elevation, a third angle of elevation associated with physically supporting the audio device by the third support surface and a fourth angle of elevation associated with physically supporting the audio device by the fourth support surface, and alters the characteristic of the acoustic output based on whether the first axis is oriented to one of the first, second, third and fourth angles of elevation.

6. The audio device of claim 1, comprising a second acoustic driver incorporated into the housing to acoustically output sound in a radiating pattern associated with a second axis of the second acoustic driver, wherein:

the first and second axes extend within a plane;

the control circuit determines an orientation of the plane relative to the direction of the force of gravity;

the control circuit allocates one of a first audio channel and a second audio channel to the first acoustic driver and allocates another of the first and second audio channels to the second acoustic driver in response to the plane being oriented more horizontally than vertically with respect to the direction of the force of gravity; and

the control circuit to allocate a mixture of the first and second audio channels to at least one of the first and second acoustic drivers in response to the plane being oriented more vertically than horizontally with respect to the direction of the force of gravity.

7. The audio device of claim 6, the housing having a generally elongate shape defining a first end at which the first acoustic driver is disposed and a second end at which the second acoustic driver is disposed, wherein the plane being oriented more horizontally than vertically is associated with the housing being rotated to a landscape orientation and the plane being oriented more vertically than horizontally is associated with the housing being rotated to a portrait orientation.

8. The audio device of claim 6, the control circuit to determine which of the first and second audio channels to allocate to the first acoustic driver and which of the first and second audio channels to allocate to the second acoustic driver based on the direction of the force of gravity relative to the plane when the plane is oriented more horizontally than vertically.

9. The audio device of claim 1, comprising an interface coupled to the control circuit to receive via a communications link a signal representing sound to acoustically output via at least the first acoustic driver.

10. The audio device of claim 9, comprising a manually operable control coupled to the control circuit, the control circuit to monitor the control for an indication of manual operation to convey a command to alter acoustic output of sound by at least the first acoustic driver, and to operate the interface to convey the command to a source device from which the signal representing sound is received via the communications link.

11. The audio device of claim 1, wherein:

the housing comprises and is separable into a first housing portion and a second housing portion;

the first housing portion comprises the first acoustic driver, the orientation sensor and the control circuit; and

the second housing portion comprises a power source, and the first and second support surfaces.

12. The audio device of claim 11, wherein:

the control circuit comprises a filter block that employs at least one digital filter to alter the characteristic; and

the second housing portion comprises a storage that stores indications of a first digital filter configuration associated with the first support surface and a second digital filter configuration associated with the second support surface, the control circuit to configure the at least one digital filter with the first or second filter configuration based on the first axis being oriented to one of the first and second angles of elevation.

13. A method comprising:

receiving a signal representing at least a first audio channel of a sound via a communications link;

driving a first acoustic driver of an audio device located on a surface to acoustically output sound in a radiating pattern associated with a first axis of the first acoustic driver;

detecting a direction of a force of gravity;

determining whether the first axis is oriented to one of a first angle of elevation associated with physically supporting a housing of the audio device incorporating the first acoustic driver by a first support surface thereof and a second angle of elevation associated with physically supporting the housing by a second support surface thereof, wherein the first and second support surfaces have different orientations and wherein the first angle of elevation and the second angle of elevation are different and non-zero relative to the surface on which the audio device is located; and

altering a characteristic of acoustic output of the sound by the first acoustic driver based on the first axis being oriented to one of the first and second angles of elevation.

14. The method of claim 13, comprising:

retrieving from a storage one of a first digital filter configuration and a second digital filter configuration based on the first axis being oriented to one of the first and second angles of elevation; and

configuring at least one digital filter to alter the characteristic based on the retrieved one of the first and second digital filter configurations.

15. The method of claim 13, comprising:

determining whether the first axis is oriented to one of the first angle of elevation, the second angle of elevation, a third angle of elevation associated with physically supporting the housing by a third support surface thereof and a fourth angle of elevation associated with physically supporting the housing by a fourth support surface thereof, wherein;

the housing has a generally elongate shape defining at least one elongate side comprising at least one of the first and second supporting surfaces, defining a first end comprising the third support surface, and defining a second end comprising the fourth support surface; and

the third and fourth support surfaces have different orientations; and

altering the characteristic of the acoustic output based on whether the first axis is oriented to one of the first, second, third and fourth angles of elevation.

16. The method of claim 13, comprising:

determining an orientation of a plane in which both the first axis and a second axis extend relative to the direction of the force of gravity, the second axis associated with a radiating pattern of a second acoustic driver incorporated into the housing;

allocating one of the first audio channel and a second audio channel of the sound to the first acoustic driver and allocating the other of the first and second audio channels to the second acoustic driver in response to the plane being oriented more horizontally than vertically with respect to the direction of the force of gravity; and

allocating a mixture of the first and second audio channels to at least one of the first and second acoustic drivers in response to the plane being oriented more vertically than horizontally with respect to the direction of the force of gravity.

17. The method of claim 16, comprising determining which of the first and second audio channels to allocate to the first acoustic driver and which of the first and second audio channels to allocate to the second acoustic driver based on the direction of the force of gravity relative to the plane when the plane is oriented more horizontally than vertically relative to the direction of the force of gravity.

18. The method of claim 13, comprising:

monitoring a manually operable control incorporated into the housing for an indication of manual operation to convey a command to alter acoustic output of sound by at least the first acoustic driver, and

transmitting the command to a source device from which the signal is received via the communications link.

19. At least one machine-readable storage medium comprising instructions that when executed by a processor component, cause the processor component to:

receive a signal representing at least a first audio channel of a sound via a communications link;

drive a first acoustic driver of an audio device located on a surface to acoustically output sound in a radiating pattern associated with a first axis of the first acoustic driver;

detect a direction of a force of gravity;

determine whether the first axis is oriented to one of a first angle of elevation associated with physically supporting a housing of the audio device incorporating the first acoustic driver by a first support surface thereof and a second angle of elevation associated with physically supporting the housing by a second support surface thereof, wherein the first and second support surfaces have different orientations; and

wherein the first angle of elevation and the second angle of elevation are different and non-zero relative to the surface on which the audio device is located and

alter a characteristic of acoustic output of the sound by the first acoustic driver based on the first axis being oriented to one of the first and second angles of elevation.

20. The machine-readable storage medium of claim 19, the processor component caused to:

retrieve from a storage one of a first digital filter configuration and a second digital filter configuration based on the first axis being oriented to one of the first and second angles of elevation; and

configure at least one digital filter to alter the characteristic based on the retrieved one of the first and second digital filter configurations.

21. The machine-readable storage medium of claim 19, the processor component caused to:

determine whether the first axis is oriented to one of the first angle of elevation, the second angle of elevation, a third angle of elevation associated with physically supporting the housing by a third support surface thereof and a fourth angle of elevation associated with physically supporting the housing by a fourth support surface thereof, wherein;

the housing has a generally elongate shape defining at least one elongate side comprising at least one of the first and second supporting surfaces, defining a first end comprising the third support surface, and defining a second end comprising the fourth support surface; and

the third and fourth support surfaces have different orientations; and

alter the characteristic of the acoustic output based on whether the first axis is oriented to one of the first, second, third and fourth angles of elevation.

22. The machine-readable storage medium of claim 19, the processor component caused to:

determine an orientation of a plane in which both the first axis and a second axis extend relative to the direction of the force of gravity, the second axis associated with a radiating pattern of a second acoustic driver incorporated into the housing;

allocate one of the first audio channel and a second audio channel of the sound to the first acoustic driver and allocating the other of the first and second audio channels to the second acoustic driver in response to the plane being oriented more horizontally than vertically with respect to the direction of the force of gravity; and

allocate a mixture of the first and second audio channels to at least one of the first and second acoustic drivers in response to the plane being oriented more vertically than horizontally with respect to the direction of the force of gravity.

23. The machine-readable storage medium of claim 22, the processor component caused to determine which of the first and second audio channels to allocate to the first acoustic driver and which of the first and second audio channels to allocate to the second acoustic driver based on the direction of the force of gravity relative to the plane when the plane is oriented more horizontally than vertically relative to the direction of the force of gravity.

24. The machine-readable storage medium of claim 19, the processor component caused to:

monitor a manually operable control incorporated into the housing for an indication of manual operation to convey a command to alter acoustic output of sound by at least the first acoustic driver, and

transmit the command to a source device from which the signal is received via the communications link.

25. An apparatus comprising:

a processor component;

a driver circuit coupled to the processor component to drive a first acoustic driver of an audio device located on a surface to acoustically output sound in a radiating pattern associated with a first axis of the first acoustic driver;

an orientation component for execution by the processor component to monitor an orientation detector to detect a direction of a force of gravity, and determine whether the first axis is oriented to one of a first angle of elevation associated with physically supporting a housing of the audio device incorporating the first acoustic driver by a first support surface thereof and a second angle of elevation associated with physically supporting the housing by a second support surface thereof, wherein the first and second support surfaces have different orientations; and

wherein the first angle of elevation and the second angle of elevation are different and non-zero relative to the surface on which the audio device is located and

a filter block to alter a characteristic of acoustic output of the sound by the first acoustic driver based on the first axis being oriented to one of the first and second angles of elevation.

26. The apparatus of claim 25, the orientation component to retrieve from a storage one of a first digital filter configuration and a second digital filter configuration based on the first axis being oriented to one of the first and second angles of elevation, and to configure at least one digital filter of the filter block to alter the characteristic based on the retrieved one of the first and second digital filter configurations.

27. The apparatus of claim 26, wherein:

the housing comprises and is separable into a first housing portion and a second housing portion;

the first housing portion comprises the first acoustic driver and the processor component; and

the second housing portion comprises the storage and the first and second support surfaces, the orientation component to retrieve one of the first and second digital filter configurations through a connector coupling the first and second housing portions.

28. The apparatus of claim 25, wherein:

the orientation component determines whether the first axis is oriented to one of the first angle of elevation, the second angle of elevation, a third angle of elevation associated with physically supporting the housing by a third support surface thereof and a fourth angle of elevation associated with physically supporting the housing by a fourth support surface thereof, wherein;

the housing has a generally elongate shape defining at least one elongate side comprising at least one of the first and second supporting surfaces, defining a first end comprising the third support surface, and defining a second end comprising the fourth support surface; and

the third and fourth support surfaces have different orientations; and

the filter block alters the characteristic of the acoustic output based on whether the first axis is oriented to one of the first, second, third and fourth angles of elevation.

29. The apparatus of claim 25, wherein:

the orientation component determines an orientation of a plane in which both the first axis and a second axis extend relative to the direction of the force of gravity, the second axis associated with a radiating pattern of a second acoustic driver incorporated into the housing; and

the apparatus comprises a channel component to allocate one of the first audio channel and a second audio channel of the sound to the first acoustic driver and allocate the other of the first and second audio channels to the second acoustic driver in response to the plane being oriented more horizontally than vertically with respect to the direction of the force of gravity, and to allocate a mixture of the first and second audio channels to at least one of the first and second acoustic drivers in response to the plane being oriented more vertically than horizontally with respect to the direction of the force of gravity.

30. The apparatus of claim 28, the orientation component to determine which of the first and second audio channels to allocate to the first acoustic driver and which of the first and second audio channels to allocate to the second acoustic driver based on the direction of the force of gravity relative to the plane when the plane is oriented more horizontally than vertically relative to the direction of the force of gravity.

31. The apparatus of claim 25, comprising:

an interface to couple the processor component to a communications link; and

a communications component for execution by the processor component to operate the interface to receive via the communications link a signal representing sound to acoustically output via at least the first acoustic driver.

32. The apparatus of claim 30, comprising a user interface (UI) component for execution by the processor component to monitor a manually operable control incorporated into the housing for an indication of manual operation to convey a command to alter acoustic output of sound by at least the first acoustic driver, the communications component to operate the interface to transmit the command to a source device from which the signal is received via the communications link.