JPH0366294U - - Google Patents
Info
- Publication number
- JPH0366294U JPH0366294U JP12502589U JP12502589U JPH0366294U JP H0366294 U JPH0366294 U JP H0366294U JP 12502589 U JP12502589 U JP 12502589U JP 12502589 U JP12502589 U JP 12502589U JP H0366294 U JPH0366294 U JP H0366294U
- Authority
- JP
- Japan
- Prior art keywords
- audio signal
- volume adjustment
- circuit
- outputs
- voltage
- 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
- 230000005236 sound signal Effects 0.000 claims description 12
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の実施例が適用されるカラーテ
レビジヨン受像機の内部回路図、第２図は同実施
例の要部に係る回路図、第３図は同要部の回路の
動作の説明に供する図である。
１８……音量調整回路、２０……音声信号増幅
回路、２２……スピーカ、２４……音量調整ボリ
ユーム、２８……出力音声信号検知回路、３０…
…第１増幅回路、３２……検波回路、３４……第
２増幅回路、３６……重畳回路。
Fig. 1 is an internal circuit diagram of a color television receiver to which an embodiment of the present invention is applied, Fig. 2 is a circuit diagram of the main part of the embodiment, and Fig. 3 is an operation diagram of the main part of the circuit. It is a figure provided for explanation. 18...Volume adjustment circuit, 20...Audio signal amplification circuit, 22...Speaker, 24...Volume adjustment volume, 28...Output audio signal detection circuit, 30...
...first amplifier circuit, 32...detection circuit, 34...second amplifier circuit, 36...superimposition circuit.
Claims (1)
整電圧を出力する音量調整ボリユームと、入力音
声信号が与えられかつこの音量調整ボリユームを
介してその操作に対応して与えられた音量調整電
圧に応じて当該入力音声信号をレベル調整して出
力する音量調整回路と、この音量調整回路でレベ
ル調整された入力音声信号を増幅して出力音声信
号としてスピーカに出力する音声信号増幅回路と
を備えた音声信号処理回路に、 前記音声信号増幅回路から出力音声信号の一部
を取り込むとともに、その取り込んだ出力音声信
号と前記音量調整ボリユームから与えられた音量
調整電圧とに基づいて前記入力音声信号のレベル
を検知増幅する検知増幅回路と、この検知増幅回
路の出力から入力音声信号のレベルの大小に反比
例した反比例電圧を増幅出力し、かつ前記音量調
整電圧に対応してその増幅度が設定される反比例
増幅回路と、前記音量調整電圧に前記反比例増幅
回路の出力を重畳し、この重畳電圧を音量調整電
圧として前記音量調整回路に出力する重畳回路と
を付加したことを特徴とするスピーカ音量調整方
式。[Claims for Utility Model Registration] A volume adjustment volume that is operated when adjusting the volume and outputs a corresponding volume adjustment voltage; A volume adjustment circuit that adjusts the level of the input audio signal according to a given volume adjustment voltage and outputs it, and a sound that amplifies the input audio signal whose level has been adjusted by this volume adjustment circuit and outputs it to the speaker as an output audio signal. A part of the output audio signal is taken in from the audio signal amplification circuit into an audio signal processing circuit equipped with a signal amplification circuit, and the output audio signal is processed based on the taken-in output audio signal and the volume adjustment voltage given from the volume adjustment volume. a detection amplifier circuit that detects and amplifies the level of the input audio signal; and a detection amplifier circuit that amplifies and outputs an inversely proportional voltage that is inversely proportional to the level of the input audio signal from the output of the detection amplifier circuit; It is characterized by adding an inverse proportional amplification circuit in which the degree of amplification is set, and a superimposition circuit that superimposes the output of the inverse proportional amplification circuit on the volume adjustment voltage and outputs this superimposed voltage to the volume adjustment circuit as the volume adjustment voltage. Speaker volume adjustment method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12502589U JPH0366294U (en) | 1989-10-24 | 1989-10-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12502589U JPH0366294U (en) | 1989-10-24 | 1989-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0366294U true JPH0366294U (en) | 1991-06-27 |
Family
ID=31672914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12502589U Pending JPH0366294U (en) | 1989-10-24 | 1989-10-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0366294U (en) |
-
1989
- 1989-10-24 JP JP12502589U patent/JPH0366294U/ja active Pending
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