发明名称 |
SUPERDIRECTIONAL ACOUSTIC SYSTEM AND PROJECTOR |
摘要 |
A superdirectional acoustic system for reproducing a sound signal supplied from a real sound source by using a superdirectional speaker and producing a virtual sound source in a vicinity of a sound wave reflection surface. The system includes an ultrasonic speaker, which includes an ultrasonic transducer for oscillating a sound wave in an ultrasonic frequency band, for reproducing an audio signal in a relatively medium to high frequency sound range, which is included in the sound signal supplied from the real sound source; and a low frequency sound reproducing speaker for reproducing an audio signal in a relatively low frequency sound range, which is included in the sound signal supplied from the real sound source. Sound in the medium-high frequency range is reproduced in a manner such that the sound is produced from a virtual sound source which is formed in the vicinity of the sound signal reflection surface such as a screen. |
申请公布号 |
WO2006001401(A1) |
申请公布日期 |
2006.01.05 |
申请号 |
WO2005JP11682 |
申请日期 |
2005.06.20 |
申请人 |
SEIKO EPSON CORPORATION;UETAKE, AKIHITO;MATSUZAWA, KINYA |
发明人 |
UETAKE, AKIHITO;MATSUZAWA, KINYA |
分类号 |
G10K15/02;H04R1/40 |
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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