Invention Grant
US09100755B2 Sound reproducing apparatus for sound reproduction using an ultrasonic transducer via mode-coupled vibration
有权
用于通过模式耦合振动使用超声波换能器进行声音再现的声音再现装置
- Patent Title: Sound reproducing apparatus for sound reproduction using an ultrasonic transducer via mode-coupled vibration
- Patent Title (中): 用于通过模式耦合振动使用超声波换能器进行声音再现的声音再现装置
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Application No.: US13061762Application Date: 2009-09-17
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Publication No.: US09100755B2Publication Date: 2015-08-04
- Inventor: Katsu Takeda , Masaki Tada , Masashi Minakuchi , Fumiyasu Konno
- Applicant: Katsu Takeda , Masaki Tada , Masashi Minakuchi , Fumiyasu Konno
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: RatnerPrestia
- Priority: JP2008-239129 20080918
- International Application: PCT/JP2009/004668 WO 20090917
- International Announcement: WO2010/032463 WO 20100325
- Main IPC: H04B3/00
- IPC: H04B3/00 ; H04R25/00 ; H04R17/10
Abstract:
In a sound reproducing apparatus, part of a frequency band where mode-coupled vibration can be excited is regarded as a carrier frequency. A frequency of mode coupling, with a low rate of change in vibration displacement with respect to the frequency, is regarded as a carrier signal so that a signal in an audible band which is outputted from an audible band signal source can be demodulated and reproduced with stable sound pressure in a broad frequency band.
Public/Granted literature
- US20110170712A1 SOUND REPRODUCING APPARATUS Public/Granted day:2011-07-14
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