Title:
ホーン装置
Document Type and Number:
Japanese Patent JP6825962
Kind Code:
B2
Abstract:
A horn device (A, B), which can prevent the decrease of sound pressure is provided. The horn device (A, B) which resonates, by a resonator (1), sound produced by vibrating a diaphragm (21), and comprises a control part (34, 34B) which vibrates the diaphragm (2), and a temperature measurement part (30); the control part (34, 34B) changes a vibration frequency which vibrates the diaphragm (21) according to a temperature measured by the temperature measurement part (30).
Inventors:
Hiroki Hoshino
Yuhito Kiuchi
Mitsuru Fujiwara
Ryosuke Kishino
Tomonori Kanda
Kawamoto Makito
Yuhito Kiuchi
Mitsuru Fujiwara
Ryosuke Kishino
Tomonori Kanda
Kawamoto Makito
Application Number:
JP2017068407A
Publication Date:
February 03, 2021
Filing Date:
March 30, 2017
Export Citation:
Assignee:
Mitsuba Co., Ltd.
International Classes:
G10K9/13; B60Q5/00; G10K9/22
Domestic Patent References:
| JP2015528583A | ||||
| JP55100800A | ||||
| JP6506545A | ||||
| JP5508243A |
Attorney, Agent or Firm:
Nishizawa Kazumi
Shingo Suzuki
Koichiro Kamata
Suzuki Mitsuyoshi
Masatake Shiga
Shingo Suzuki
Koichiro Kamata
Suzuki Mitsuyoshi
Masatake Shiga