JPH01137610U - - Google Patents

Info

Publication number
JPH01137610U
JPH01137610U JP3338888U JP3338888U JPH01137610U JP H01137610 U JPH01137610 U JP H01137610U JP 3338888 U JP3338888 U JP 3338888U JP 3338888 U JP3338888 U JP 3338888U JP H01137610 U JPH01137610 U JP H01137610U
Authority
JP
Japan
Prior art keywords
control signal
low frequency
vehicle
outputting
varying
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.)
Pending
Application number
JP3338888U
Other languages
Japanese (ja)
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 JP3338888U priority Critical patent/JPH01137610U/ja
Publication of JPH01137610U publication Critical patent/JPH01137610U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Control Of Amplification And Gain Control (AREA)

Description

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

第１図は本考案の車載音響装置の実施例を示す
ブロツク図、第２図は本考案がなされた背景を説
明する音声信号の周波数特性である。 ３……低域ブースト回路、４……プリアンプ、
８……スピードメータケーブル、９……四極永久
磁石、１０……リードスイツチ、１１……パルス
変換回路、１２……Ｄ／Ａ変換回路。 FIG. 1 is a block diagram showing an embodiment of the in-vehicle audio system of the present invention, and FIG. 2 is a frequency characteristic of an audio signal to explain the background of the invention. 3...Low frequency boost circuit, 4...Preamplifier,
8... Speedometer cable, 9... Quadrupole permanent magnet, 10... Reed switch, 11... Pulse conversion circuit, 12... D/A conversion circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] エンジン回転数に応じた制御信号を出力する手
段と、前記制御信号によつて音声信号の低域成分
を可変する手段とを備えたことを特徴とする車載
音響装置。 1. A vehicle-mounted audio device comprising: means for outputting a control signal according to engine speed; and means for varying a low frequency component of an audio signal using the control signal.
JP3338888U 1988-03-14 1988-03-14 Pending JPH01137610U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3338888U JPH01137610U (en) 1988-03-14 1988-03-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3338888U JPH01137610U (en) 1988-03-14 1988-03-14

Publications (1)

Publication Number Publication Date
JPH01137610U true JPH01137610U (en) 1989-09-20

Family

ID=31260068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3338888U Pending JPH01137610U (en) 1988-03-14 1988-03-14

Country Status (1)

Country Link
JP (1) JPH01137610U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007123172A1 (en) * 2006-04-20 2007-11-01 Panasonic Corporation Acoustic reproduction device
JP2014014090A (en) * 2013-08-02 2014-01-23 Yupiteru Corp Vehicle alarm device and program

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62257208A (en) * 1986-05-01 1987-11-09 Fujitsu Ten Ltd Automatic noise compensation device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62257208A (en) * 1986-05-01 1987-11-09 Fujitsu Ten Ltd Automatic noise compensation device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007123172A1 (en) * 2006-04-20 2007-11-01 Panasonic Corporation Acoustic reproduction device
US8155328B2 (en) 2006-04-20 2012-04-10 Panasonic Corporation Sound reproducing apparatus
JP2014014090A (en) * 2013-08-02 2014-01-23 Yupiteru Corp Vehicle alarm device and program

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