发明名称 |
A PARAMETRIC LOUDSPEAKER SYSTEM AND METHOD FOR ENABLING ISOLATED LISTENING TO AUDIO MATERIAL |
摘要 |
A virtual headset for enabling isolated listening to audio material by a listener without need for earphones or other physical audio producing devices attached to the listener. The virtual headset includes a parametric ultrasonic signal source 504 supplying at least a first parametric ultrasonic channel signal comprised of an ultrasonic carrier signal and at least one sideband, and configured to be emitted and directed substantially exclusively at a first ear 506 of the listener 502. The parametric ultrasonic signal source is coupled to an electro-acoustical emitter structure, which is configured to emit and direct a first parametric ultrasonic wave corresponding to the first parametric ultrasonic channel signal at the listener such that a first resultant decoupled audio wave will be heard substantially exclusively at the first ear of the listener, with minimal audible sound at a second ear 514 of the listener. |
申请公布号 |
WO2005036921(A2) |
申请公布日期 |
2005.04.21 |
申请号 |
WO2004US33308 |
申请日期 |
2004.10.08 |
申请人 |
AMERICAN TECHNOLOGY CORPORATION;CROFT, JAMES, J., III. |
发明人 |
CROFT, JAMES, J., III. |
分类号 |
G10K15/02;H04B5/00;H04R;H04R3/00;H04R5/02;H04R5/033;H04R23/00 |
主分类号 |
G10K15/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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