JPH0356218U - - Google Patents

Info

Publication number
JPH0356218U
JPH0356218U JP11480189U JP11480189U JPH0356218U JP H0356218 U JPH0356218 U JP H0356218U JP 11480189 U JP11480189 U JP 11480189U JP 11480189 U JP11480189 U JP 11480189U JP H0356218 U JPH0356218 U JP H0356218U
Authority
JP
Japan
Prior art keywords
frequency
measuring device
noise
vehicle audio
bass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11480189U
Other languages
Japanese (ja)
Other versions
JP2521662Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989114801U priority Critical patent/JP2521662Y2/en
Publication of JPH0356218U publication Critical patent/JPH0356218U/ja
Application granted granted Critical
Publication of JP2521662Y2 publication Critical patent/JP2521662Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図乃至第３図はこの考案に係る車載用音響
機器の実施例を示し、第１図はブロツク図、第２
図はこの考案の他の実施例のブロツク図、第３図
は低音ブースタを介した車載用音響機器周波数特
性を示し、第３図ａは低音ブースタのブースト状
態でないときの周波数特性を示す図、第３図ｂは
ブースト状態での周波数特性の一例を示す図であ
る。第４図は従来の実施例を示し、第４図ａはブ
ロツク図、第４図ｂは車両のスピードが８０Km／
Ｈのときの騒音の状態を示す騒音特性図、第４図
ｃは車両のスピードが１００Km／Ｈのときの騒音
の状態を示す騒音特性図である。 主な符号の説明、５…騒音測定装置、６…低音
ブースタ。 Figures 1 to 3 show an embodiment of the in-vehicle audio equipment according to this invention, with Figure 1 being a block diagram and Figure 2 being a block diagram.
Fig. 3 is a block diagram of another embodiment of this invention, Fig. 3 shows the frequency characteristics of an in-vehicle audio equipment via the bass booster, Fig. 3a shows the frequency characteristics of the bass booster when it is not in the boost state, FIG. 3b is a diagram showing an example of frequency characteristics in a boost state. Fig. 4 shows a conventional embodiment, Fig. 4a is a block diagram, and Fig. 4b shows a vehicle speed of 80km/h.
FIG. 4c is a noise characteristic diagram showing the noise state when the vehicle speed is 100 km/h. Explanation of main symbols, 5... Noise measuring device, 6... Bass booster.

Claims (1)

【実用新案登録請求の範囲】 １ 騒音レベルを測定する騒音測定装置と、周波
数特性を変化させることのできる周波数特性可変
装置とを設け、前記騒音測定装置の測定結果に基
づき周波数特性可変装置の周波数特性を制御する
ように構成したことを特徴とする車載用音響機器
。 ２ 騒音レベルを測定する騒音測定装置と、低音
域の周波数特性を可変できるようにした低音ブー
スタとを設け、前記騒音測定装置の測定結果に基
づき低音ブースタの周波数特性を制御するように
構成したことを特徴とする車載用音響機器。 ３ 騒音レベルが高くなると低音ブースタのブー
スト周波数を上昇させ、且つ、ブースト量を下げ
るように構成したことを特徴とする請求項２記載
の車載用音響機器。[Claims for Utility Model Registration] 1. Provides a noise measuring device that measures noise level and a frequency characteristic variable device that can change frequency characteristics, and adjusts the frequency of the frequency characteristic variable device based on the measurement results of the noise measuring device. An in-vehicle audio device characterized by being configured to control characteristics. 2. A noise measuring device that measures the noise level and a bass booster that can vary the frequency characteristics of the bass range are provided, and the frequency characteristics of the bass booster are controlled based on the measurement results of the noise measuring device. In-vehicle audio equipment featuring: 3. The in-vehicle audio equipment according to claim 2, wherein the boost frequency of the bass booster is increased and the amount of boost is decreased when the noise level increases.
JP1989114801U 1989-10-02 1989-10-02 Automotive audio equipment Expired - Lifetime JP2521662Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989114801U JP2521662Y2 (en) 1989-10-02 1989-10-02 Automotive audio equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989114801U JP2521662Y2 (en) 1989-10-02 1989-10-02 Automotive audio equipment

Publications (2)

Publication Number Publication Date
JPH0356218U true JPH0356218U (en) 1991-05-30
JP2521662Y2 JP2521662Y2 (en) 1996-12-25

Family

ID=31663150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989114801U Expired - Lifetime JP2521662Y2 (en) 1989-10-02 1989-10-02 Automotive audio equipment

Country Status (1)

Country Link
JP (1) JP2521662Y2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5452453A (en) * 1977-10-04 1979-04-25 Torio Kk Tone control circuit
JPS55125710A (en) * 1979-03-20 1980-09-27 Trio Kenwood Corp Tone control circuit
JPS57195217U (en) * 1981-06-01 1982-12-10
JPS6114524U (en) * 1984-06-26 1986-01-28 日産自動車株式会社 Vehicle audio equipment
JPH0177024U (en) * 1987-11-11 1989-05-24

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5452453A (en) * 1977-10-04 1979-04-25 Torio Kk Tone control circuit
JPS55125710A (en) * 1979-03-20 1980-09-27 Trio Kenwood Corp Tone control circuit
JPS57195217U (en) * 1981-06-01 1982-12-10
JPS6114524U (en) * 1984-06-26 1986-01-28 日産自動車株式会社 Vehicle audio equipment
JPH0177024U (en) * 1987-11-11 1989-05-24

Also Published As

Publication number Publication date
JP2521662Y2 (en) 1996-12-25

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term