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US 8,265,310 B2Granted
Multi-element directional acoustic arrays
AssigneeBose Corporation
InventorsWilliam Berardi, Hilmar Lehnert
Life of this patent
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Abstract
An audio system that may be implemented in a television, that includes a plurality of directional arrays. The arrays may include a common acoustic driver and may be spaces non-uniformly.
Claims15
An audio system, comprising:
- at least three acoustic drivers, arranged substantially in a line in a single enclosure, and separated by a non-uniform distance;
- a first interference directional array, comprising
- a first subset of the plurality of acoustic drivers, for directionally radiating one of a left channel audio signal and a right channel audio signal;
- and
- signal processing circuitry to process audio signals to the first subset of acoustic drivers so that radiation from each of the acoustic drivers interferes destructively so that radiation in a direction toward a listening location is less than radiation in other directions;
- and
- a second interference directional array, comprising a second subset of the plurality of acoustic drivers, for directionally radiating the other of a left channel audio and a right channel audio signal;
- and
- signal processing circuitry to process audio signals to the second subset of acoustic drivers so that radiation from each of the acoustic drivers interferes destructively so that radiation in a direction toward a listening location is less than radiation in other directions;
- the first subset and the second subset comprising at least one common acoustic driver, and the first subset including an acoustic driver not included by the second subset, and the second subset including an acoustic driver not included by the first subset.
7 more elements
A television, comprising an audio device, comprising:
- at least three acoustic drivers, arranged substantially in a line in a common enclosure, and separated by a non-uniform distance;
- a first interference directional array, comprising
- a first subset of the plurality of acoustic drivers, for directionally radiating one of a left channel audio signal and a right channel audio signal;
- and
- signal processing circuitry to process audio signals to the first subset of acoustic drivers so that radiation from each of the acoustic drivers interferes destructively so that radiation in a direction toward a listening location is less than radiation in other directions;
- and
- a second interference directional array, comprising a second subset of the plurality of acoustic drivers, for directionally radiating the other of a left channel audio and a right channel audio signal;
- and
- signal processing circuitry to process audio signals to the second subset of acoustic drivers so that radiation from each of the acoustic drivers interferes destructively so that radiation in a direction toward a listening location is less than radiation in other directions;
- the first subset and the second subset comprising at least one common acoustic driver, and the first subset including at least one acoustic driver not included by the first subset and the second subset including at least on acoustic driver not included by the first subset.
7 more elements
Dependencies are inferred from the claim text.