JPH0160282U - - Google Patents
Info
- Publication number
- JPH0160282U JPH0160282U JP15703487U JP15703487U JPH0160282U JP H0160282 U JPH0160282 U JP H0160282U JP 15703487 U JP15703487 U JP 15703487U JP 15703487 U JP15703487 U JP 15703487U JP H0160282 U JPH0160282 U JP H0160282U
- Authority
- JP
- Japan
- Prior art keywords
- output
- signal
- controlling
- converting
- constant 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
- 238000006243 chemical reaction Methods 0.000 claims 2
- 230000002194 synthesizing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図はこの考案を適用して構成した音量制御
装置の全体回路図、第２図は従来の典型的な例を
示している図である。
１……ＣＰＵ、２……ＶＣＡ、３……ボリユー
ム、５……Ｄ／Ａ変換器、６……加算器。
FIG. 1 is an overall circuit diagram of a volume control device constructed by applying this invention, and FIG. 2 is a diagram showing a typical conventional example. 1... CPU, 2... VCA, 3... Volume, 5... D/A converter, 6... Adder.
Claims (1)
信号に変換するＤ／Ａ変換手段と、 このＤ／Ａ変換手段に出力があるときにのみ一
定レベルのアナログ信号を発生する定電圧信号発
生手段と、 この定電圧信号発生手段の出力と上記Ｄ／Ａ変
換手段の出力とを合成して、音量を制御するため
の電圧制御増幅器を制御するコントロール信号を
作り出す加算手段と を具備してなる音量制御装置。[Claims for Utility Model Registration] D/A conversion means for converting a digital signal with a predetermined number of bits into an analog signal; and generating an analog signal at a certain level only when the D/A conversion means has an output. a constant voltage signal generating means; and an adding means for synthesizing the output of the constant voltage signal generating means and the output of the D/A converting means to generate a control signal for controlling a voltage control amplifier for controlling the volume. A volume control device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15703487U JPH0160282U (en) | 1987-10-14 | 1987-10-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15703487U JPH0160282U (en) | 1987-10-14 | 1987-10-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0160282U true JPH0160282U (en) | 1989-04-17 |
Family
ID=31436116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15703487U Pending JPH0160282U (en) | 1987-10-14 | 1987-10-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0160282U (en) |
-
1987
- 1987-10-14 JP JP15703487U patent/JPH0160282U/ja active Pending
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