System and method for determining directionality of sound...

Details System and method for determining directionality of sound... System and method for determining directionality of sound...

2011-01-04

2011-01-04

Mei, Xu (Department: 2614)

Electrical audio signal processing systems and devices

Hearing aids, electrical

C381S313000, C381S092000, C381S026000, C381S309000

Reexamination Certificate

active

07864971

ABSTRACT:
This invention relates to a system (200) for determining directionality of a sound. The system (200) comprises a first audio device (202) placed on one side of a user's head (100) and having a first microphone unit (110, 112) for converting said sound to a first electric signal, a second audio device (204) placed on the other side of the user's head (100) and having a second microphone unit (114, 116) for converting said sound to a second electric signal, and comprises a transceiver unit (220, 238) for interconnecting the first and second audio device and communicating the second electric signal to the first audio device (202). The first audio device (202) further comprises a first comparator (222) for comparing the first and second electric signals and generating a first directionality signal from the comparison.

REFERENCES:
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patent: 6549633 (2003-04-01), Westermann
patent: 6778674 (2004-08-01), Panasik et al.
patent: 2007/0098192 (2007-05-01), Sipkema
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patent: 1 326 478 (2003-07-01), None
patent: WO-2004/028203 (2004-04-01), None
patent: WO-2004/028203 (2004-04-01), None

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