Title:
TWEETER DIAPHRAGM AND TWEETER
Document Type and Number:
WIPO Patent Application WO/2023/238617
Kind Code:
A1
Abstract:
This tweeter diaphragm is constituted by a high-elasticity sheet having an anisotropy. In a vibration profile that is measured by use of a laser Doppler vibration meter in a frequency band the range of which is between 20 Hz and 40 kHz inclusive, no peak that is caused by divided vibration is detected in a frequency band between 20 Hz and 20 kHz inclusive, while a plurality of peaks that are caused by divided vibration are detected in a frequency band the range of which is greater than 20 kHz but equal to or less than 40 kHz.
Inventors:
MIYATA TOMOYA (JP)
HIYAMA KUNIO (JP)
HIYAMA KUNIO (JP)
Application Number:
PCT/JP2023/018291
Publication Date:
December 14, 2023
Filing Date:
May 16, 2023
Export Citation:
Assignee:
YAMAHA CORP (JP)
International Classes:
H04R7/02; H04R7/12
Foreign References:
| JPS5612194A | 1981-02-06 | |||
| US20190306627A1 | 2019-10-03 | |||
| JP2017112505A | 2017-06-22 | |||
| JP2005168001A | 2005-06-23 | |||
| JPS6119298A | 1986-01-28 | |||
| JPH06165289A | 1994-06-10 |
Download PDF: