JPH032722U - - Google Patents
Info
- Publication number
- JPH032722U JPH032722U JP6165489U JP6165489U JPH032722U JP H032722 U JPH032722 U JP H032722U JP 6165489 U JP6165489 U JP 6165489U JP 6165489 U JP6165489 U JP 6165489U JP H032722 U JPH032722 U JP H032722U
- Authority
- JP
- Japan
- Prior art keywords
- audio signal
- signal
- section
- amplifier
- input
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案の一実施例の電気回路図、第２
図は従来回路の電気回路図である。
Ａ……増幅器、ＳＰ……スピーカ、Ｒｅ……電
源回路、ＳＷ……電源スイツチ部、ＳＤ……信号
検出部、ＳＣ……スイツチ制御部。
Fig. 1 is an electrical circuit diagram of one embodiment of the present invention;
The figure is an electrical circuit diagram of a conventional circuit. A...Amplifier, SP...Speaker, Re...Power supply circuit, SW...Power switch section, SD...Signal detection section, SC...Switch control section.
Claims (1)
音声信号の供給によりスピーカを駆動する音響回
路において、前記増幅器への駆動電源の供給を断
接する電源スイツチ部と、前記音声信号の入力の
有無を検出する信号検出部と、この信号検出部か
ら信号検出信号が出力されている時のみ前記電源
スイツチ部をオンさせるスイツチ制御部とを備え
てなることを特徴とする音響回路。 In an acoustic circuit that amplifies an input audio signal with an amplifier and drives a speaker by supplying the amplified audio signal, a power switch section connects/disconnects the supply of driving power to the amplifier and detects whether or not the audio signal is input. and a switch control section that turns on the power switch section only when a signal detection signal is output from the signal detection section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6165489U JPH032722U (en) | 1989-05-26 | 1989-05-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6165489U JPH032722U (en) | 1989-05-26 | 1989-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH032722U true JPH032722U (en) | 1991-01-11 |
Family
ID=31590097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6165489U Pending JPH032722U (en) | 1989-05-26 | 1989-05-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH032722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012011029A (en) * | 2010-07-01 | 2012-01-19 | Bandai Co Ltd | Model toy storage device |
-
1989
- 1989-05-26 JP JP6165489U patent/JPH032722U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012011029A (en) * | 2010-07-01 | 2012-01-19 | Bandai Co Ltd | Model toy storage device |