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Orientation-responsive acoustic array control

  • US 9,264,794 B2
  • Filed: 03/30/2015
  • Issued: 02/16/2016
  • Est. Priority Date: 04/14/2011
  • Status: Active Grant
First Claim
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1. An audio device comprising:

  • an elongate casing operating in a first orientation and a second orientation different from the first orientation;

    an orientation input device disposed on the casing to detect an orientation of the casing relative to the direction of the force of gravity;

    a plurality of acoustic drivers disposed on the casing and operable to form a plurality of acoustic interference arrays, each array being associated with one of a plurality of audio channels, the acoustic drivers operate to acoustically output audio signals in a first frequency range;

    a controller that modifies at least one of the acoustic interference arrays in response to a change in the orientation detected by the orientation input device by selecting a first plurality of coefficients to configure a plurality of filters in response to determining that the casing is in the first orientation, and selecting a second plurality of coefficients to configure the plurality of filters in response to determining that the casing is in the second orientation; and

    a first infrared sensor and a second infrared sensor, wherein;

    in response to the casing being positioned in the first orientation, the first sensor is enabled so that it is configured to receive infrared signals from an external control device, and the second sensor is disabled; and

    in response to the casing being positioned in the second orientation, the second sensor is enabled so that it is configured to receive infrared signals from the external control device, and the first sensor is disabled.

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