Patent ID: 8265310
Filing Date: 2012-09-11
Classification: H04R

Abstract:
1. 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.