JPH0370500U

JPH0370500U -

Info

Publication number: JPH0370500U
Application number: JP13272389U
Authority: JP
Priority date: 1989-11-15
Filing date: 1989-11-15
Publication date: 1991-07-15

Description

[Brief explanation of the drawing]

第１図ないし第３図は本考案の第１実施例に係
り、第１図のａはリモコン送信機の回路図、第１
図のｂはテレビ本体に内蔵された音量調整系の回
路図、第２図ａはリモコン送信機側のマイクロコ
ンピユータの動作を示すフローチヤート、第２図
ｂはテレビ本体側のマイクロコンピユータの動作
を示すフローチヤート、第３図はサランドテレビ
に係る音場自動コントロールシステムのレイアウ
ト図である。第４図および第５図は第２実施例に
係り、第４図はリモコン送信機の外観を示す平面
図、第５図のａはリモコン送信機の回路図、第５
図のｂはテレビ本体に内蔵された音量調整系の回
路図である。第６図および第７図は従来例に係り
、第６図はテレビ本体とスピーカとのレイアウト
図、第７図はテレビ本体に内蔵されている音声出
力回路の回路図である。２……テレビ本体（音響機器本体）、３ＬＦ…
…左側フロントスピーカ、３ＲＦ……右側フロン
トスピーカ、３ＬＲ……左側リアスピーカ、３Ｒ
Ｒ……右側リアスピーカ、４，４′……リモコン
送信機、４ａ……音場設定キー、５，５ＬＦ，５
ＲＦ，５ＬＲ，５ＲＲ……マイクロフオン、１０
……リモコン側マイコン、１６……赤外ＬＥＤ、
１７……フオトトランジスタ、２１……本体側マ
イコン、２３……基準音声信号発生回路、２４…
…スピーカセレクタ、２５ＬＦ，２５ＲＦ，２５
ＬＲ，２５ＲＲ……モード切換スイツチ、２６Ｌ
Ｆ，２６ＲＦ，２６ＬＲ，２６ＲＲ……電子ボリ
ユーム。 1 to 3 relate to the first embodiment of the present invention, a of FIG. 1 is a circuit diagram of a remote control transmitter, and a of FIG.
Figure b is a circuit diagram of the volume adjustment system built into the TV, Figure 2a is a flowchart showing the operation of the microcomputer on the remote control transmitter side, and Figure 2b is a flowchart showing the operation of the microcomputer on the TV body. The flowchart shown in FIG. 3 is a layout diagram of an automatic sound field control system related to a surround television. 4 and 5 relate to the second embodiment, FIG. 4 is a plan view showing the external appearance of the remote control transmitter, a is a circuit diagram of the remote control transmitter, and FIG.
Figure b is a circuit diagram of a volume adjustment system built into the television main body. 6 and 7 relate to a conventional example, where FIG. 6 is a layout diagram of a television main body and speakers, and FIG. 7 is a circuit diagram of an audio output circuit built into the television main body. 2...TV main unit (audio equipment main unit), 3LF...
...Left front speaker, 3RF...Right front speaker, 3LR...Left rear speaker, 3R
R...Right rear speaker, 4, 4'...Remote control transmitter, 4a...Sound field setting key, 5, 5LF, 5
RF, 5LR, 5RR... Microphone, 10
...Remote control side microcomputer, 16...Infrared LED,
17... Phototransistor, 21... Main unit side microcomputer, 23... Reference audio signal generation circuit, 24...
...Speaker selector, 25LF, 25RF, 25
LR, 25RR...mode changeover switch, 26L
F, 26RF, 26LR, 26RR...electronic volume.

Claims

[Scope of Utility Model Registration Claim] An audio device with multiple speakers connected to it, and a remote control transmitter that remotely controls the audio device and is equipped with a sound field setting key and a microphone that receives audio from each speaker. the audio equipment body includes means for generating a reference sound based on reception of a sound field setting code by operating the sound field setting key, the reference sound from each speaker received via the microphone; The remote control transmitter is equipped with a means for comparing the volume of the speakers and transmitting the comparison result, and the audio equipment body is equipped with a means for automatically controlling the volume of the speaker so that the received comparison result does not meet a predetermined standard. The sound field automatic control system is characterized by: