Acoustic system, method for controlling an acoustic system, and method for manufacturing an acoustic system
The acoustic system uses a vibrating member with exciters and correction filters to manage sound propagation, addressing interference issues by selectively controlling sound distribution in spaces like airplane cabins.
JP2026091121APending Publication Date: 2026-06-03PANASONIC AUTOMOTIVE SYST CO LTD +1
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- PANASONIC AUTOMOTIVE SYST CO LTD
- Filing Date
- 2024-11-22
- Publication Date
- 2026-06-03
AI Technical Summary
Technical Problem
Existing acoustic systems fail to effectively suppress sound propagation in unintended regions, such as in airplane cabins where sounds from multiple speakers interfere with each other.
Method used
An acoustic system comprising a vibrating member with first and second exciters, a first signal output device, and a second signal output device that corrects the first acoustic signal to suppress sound propagation in non-intended regions using a correction filter based on measured sound pressure transfer functions.
Benefits of technology
The system efficiently propagates sound in intended areas while suppressing it in unintended regions, creating a controlled sound environment by adjusting sound propagation characteristics.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026091121000001_ABST
Abstract
To keep sound propagation within the intended range. [Solution] The acoustic system 100 includes a vibrating member 110, one or more first exciters 121 attached to the vibrating member 110 that vibrate the vibrating member 110 by an excitation force generated based on a first acoustic signal S1, one or more second exciters 122 attached to the vibrating member 110 that vibrate the vibrating member 110 by an excitation force generated based on a second acoustic signal S2, a first signal output device 131 that outputs the first acoustic signal S1, and a second signal output device 132 that outputs a second acoustic signal S2 to the second exciters 122, which is a corrected version of the first acoustic signal S1 that suppresses sound propagation in a non-propagation region 202 that is outside the region intended to propagate the sound emitted from the vibrating member 110 based on the first acoustic signal S1.
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