JPS60163149U

JPS60163149U - Vehicle audio equipment

Info

Publication number: JPS60163149U
Application number: JP5127684U
Authority: JP
Inventors: ひろし今井; 純一笠井
Original assignee: 日産自動車株式会社
Priority date: 1984-04-07
Filing date: 1984-04-07
Publication date: 1985-10-30

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、先願に係る車両用音響装置のスピーカ配置構
造を示す部分断面側面図、第２図は本考案の第１実施例
のブロック図、第３，４図は同実施例のスピーカの変位
状態を示す説明図、第５図は本考案の第２実施例のマイ
クロホン配置構造を示す部分断面側面図、第６図は同実
施例のブロック図、第７図は本考案の第３実施例のブロ
ック図、第８図は音圧周波数特性図、第９図は本考案、
の第４実施例のブロック図、第１０図は車両川音−響装
置のスピーカ配置構造を示す平面説明図、第１１図Ｃ′
ま同装置のブロック図である。２・・・前席、−３・・・後席、４・・・シートスライ
ド装置、６・・・シートバック、７・・・リクライニン
グディバイス、９，９Ｒ，９Ｌ・・・後席乗員用スピー
カ、１１・・・車両用音響装置、１２・・・チューナ、
１３・・・カセットデツキ、１４・・・プリアンプ、１
５Ｒ，１５Ｌ・・・電圧制御回路（制御手段）、１６・
・・メインアンプ、１７・・・シートスライド量センサ
（検出装置）、１８・・・リークライニング角センサ（
検出袋　　　置）、２０・・・音圧周波数補正装置、２
１・・・制御口　　　　−路（制御手段）、２２・・・
トーンコントロール装置、２３ａ、２３ｂ、２３ｃ・・
・バンドパスフィルタ、２４・・・マイクロホン、２５
・・・記憶装置付制御回路（制御手段）、２６ａｔ　２
６ｂｔ　２６ｃｍ電圧制御装置、２９，３０．３１・・
・フィルタ、３門・・・実スピーカ用メインアンプ、３
３，３４．３５．３６・・・主スピーカ、３９・・・後
席用補助スピーカ、４１・・・ミキサ、４２・・田−パ
スフィルタ、４４・・・補助スピーカ用メインアンプ。FIG. 1 is a partially sectional side view showing the speaker arrangement structure of a vehicle audio system according to the prior application, FIG. 2 is a block diagram of a first embodiment of the present invention, and FIGS. 3 and 4 are speakers of the same embodiment. FIG. 5 is a partial cross-sectional side view showing the microphone arrangement structure of the second embodiment of the present invention, FIG. 6 is a block diagram of the same embodiment, and FIG. 7 is the third embodiment of the present invention. A block diagram of the embodiment, FIG. 8 is a sound pressure frequency characteristic diagram, and FIG. 9 is a diagram of the present invention.
10 is an explanatory plan view showing the speaker arrangement structure of the vehicle acoustic system, and FIG. 11C' is a block diagram of the fourth embodiment.
It is a block diagram of the same device. 2...Front seat, -3...Rear seat, 4...Seat slide device, 6...Seat back, 7...Reclining device, 9, 9R, 9L...Speaker for rear seat occupants , 11... Vehicle audio device, 12... Tuner,
13...Cassette deck, 14...Preamplifier, 1
5R, 15L... Voltage control circuit (control means), 16.
... Main amplifier, 17 ... Seat slide amount sensor (detection device), 18 ... Leak lining angle sensor (
detection bag), 20...sound pressure frequency correction device, 2
1... Control port - way (control means), 22...
Tone control device, 23a, 23b, 23c...
・Band pass filter, 24...Microphone, 25
...Control circuit with storage device (control means), 26at 2
6bt 26cm voltage control device, 29, 30.31...
・Filter, 3 gates...Main amplifier for real speaker, 3
3, 34. 35. 36... Main speaker, 39... Auxiliary speaker for rear seat, 41... Mixer, 42... Field-pass filter, 44... Main amplifier for auxiliary speaker.

Claims

[Scope of utility model registration request]

(1) A means for amplifying an acoustic signal output from a suitable acoustic source, a speaker disposed at least in the front seat and reproducing the acoustic signal directed toward the rear seat, and a speaker for reproducing the acoustic signal in a direction toward the rear seat; 1. A vehicle acoustic device comprising: a detection device that detects and outputs a signal; and a control means that controls the acoustic signal according to an output signal of the detection device and changes the acoustic characteristics of the speaker.

(2) The vehicle audio device according to claim 1, wherein the control means is a control circuit that controls the input of an audio signal to a speaker and changes the volume of reproduced sound.

(3) The control means controls each frequency band of the acoustic signal! 2. The vehicular audio device according to claim 1, which is a utility model, and further comprises a control circuit that controls pressure and changes the quality of reproduced sound.