Forced acoustic dipole and forced acoustic multipole array...

Details Forced acoustic dipole and forced acoustic multipole array... Forced acoustic dipole and forced acoustic multipole array...

2009-05-27

2011-10-04

Pihulic, Daniel (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Transmitter systems

With beam forming, shaping, steering, or scanning

Reexamination Certificate

active

08031558

ABSTRACT:
Provided is a forced acoustic dipole capable of regulating phases and acoustic pressures of first and second acoustic signals output from first and second pole speakers to freely steer the direction of an acoustic lobe. In addition, a forced acoustic multipole array is constituted by a plurality of forced acoustic dipoles. When the phases and acoustic pressures of the first and second acoustic signals output from the forced acoustic dipoles are regulated to steer an acoustic lobe in a specific direction, sound can be heard from a desired direction only without disturbing others.

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Marinus M. Boone et al., “Design of a Loudspeaker System with a Low-Frequency Cardioidlike Radiation Pattern,” J. Audio Eng. Soc., Sep. 1997, pp. 702-707, vol. 45, No. 9.
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Marinus M. Boone et al., “Design of a Loudspeaker System with a Low-Frequency Cardioidlike Radiation Pattern”, J. Audio. Soc., Sep. 1997, pp. 702-707, vol. 45, No. 9.

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