JPS6224593U

JPS6224593U -

Info

Publication number: JPS6224593U
Application number: JP11699785U
Authority: JP
Priority date: 1985-07-30
Filing date: 1985-07-30
Publication date: 1987-02-14

Description

[Brief explanation of the drawing]

第１図はこの考案による車載用音響再生装置の
スピーカ配置を示した構成平面図、第２図はこの
考案による信号切換手段の一実施例を示す図、第
３図はこの考案の他の実施例を示す信号切換手段
を示す図、第４図は従来のスピーカ配置を示す図
、第５図は第４図のスピーカ配置をなすスピーカ
を駆動する信号回路図である。１，１ａ……前部座席に対する左右スピーカ、
２……後部座席に対する左右スピーカ、３，４…
…搭乗者、５，６……増幅器、７……第３のスピ
ーカ、８……信号切換手段、９……加算回路、１
０……増幅器。 Fig. 1 is a structural plan view showing the speaker arrangement of the in-vehicle sound reproduction device according to this invention, Fig. 2 is a diagram showing an embodiment of the signal switching means according to this invention, and Fig. 3 is another embodiment of this invention. FIG. 4 is a diagram showing a conventional speaker arrangement, and FIG. 5 is a signal circuit diagram for driving the speakers having the speaker arrangement shown in FIG. 4. 1, 1a...Left and right speakers for the front seats,
2... Left and right speakers for the rear seats, 3, 4...
...Passenger, 5, 6...Amplifier, 7...Third speaker, 8...Signal switching means, 9...Addition circuit, 1
0...Amplifier.

Claims

[Scope of utility model registration request]

First, for passengers in the front or rear seats.
In an in-vehicle sound reproduction device in which second speakers are arranged on the left and right sides and supply left and right channel signals to the first and second speakers, respectively, a third speaker is arranged between the first and second speakers. and a signal switching means for selectively switching and supplying one of the left and right channel signals to the third speaker.