JPS6175626U - - Google Patents
Info
- Publication number
- JPS6175626U JPS6175626U JP16138984U JP16138984U JPS6175626U JP S6175626 U JPS6175626 U JP S6175626U JP 16138984 U JP16138984 U JP 16138984U JP 16138984 U JP16138984 U JP 16138984U JP S6175626 U JPS6175626 U JP S6175626U
- Authority
- JP
- Japan
- Prior art keywords
- gain
- attenuator
- response
- command
- operating state
- 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.)
- Granted
Links
- 230000007423 decrease Effects 0.000 claims 4
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図は可変利得増幅装置の従来例を示すブロ
ツク図、第２図は本考案の実施例を示すブロツク
図、第３図は本考案の他の実施例における動作を
示すフロー図である。
主要部分の符号の説明、１……アツプ指令スイ
ツチ、２……ダウン指令スイツチ、３……ＡＴＴ
指令スイツチ、７……Ｕ／Ｄカウンタ、１２……
減算器、１３……信号発生器、１５……選択回路
、２１……ＶＣＡ。
FIG. 1 is a block diagram showing a conventional example of a variable gain amplifier, FIG. 2 is a block diagram showing an embodiment of the present invention, and FIG. 3 is a flow diagram showing the operation of another embodiment of the present invention. Explanation of symbols of main parts, 1... Up command switch, 2... Down command switch, 3... ATT
Command switch, 7...U/D counter, 12...
Subtractor, 13... Signal generator, 15... Selection circuit, 21... VCA.
Claims (1)
低下指令に応じて利得が徐々に低下しアツテネー
タ作動指令に応じて利得が急速に所定値だけ低下
してアツテネータ作動状態となる可変利得増幅装
置であつて、アツテネータ作動状態下における前
記利得上昇指令又は利得低下指令に応じてアツテ
ネータ作動状態を解除することを特徴とする可変
利得増幅装置。 A variable gain amplifier in which the gain gradually increases in response to a gain increase command, the gain gradually decreases in response to a gain decrease command, and the gain rapidly decreases by a predetermined value in response to an attenuator operation command to enter an attenuator operation state. A variable gain amplification device characterized in that the attenuator is released from the attenuator operating state in response to the gain increase command or the gain decrease command while the attenuator is in the operating state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984161389U JPH0311937Y2 (en) | 1984-10-25 | 1984-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984161389U JPH0311937Y2 (en) | 1984-10-25 | 1984-10-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6175626U true JPS6175626U (en) | 1986-05-21 |
| JPH0311937Y2 JPH0311937Y2 (en) | 1991-03-22 |
Family
ID=30719297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984161389U Expired JPH0311937Y2 (en) | 1984-10-25 | 1984-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0311937Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5888910A (en) * | 1981-11-20 | 1983-05-27 | Nippon Gakki Seizo Kk | Adjusting circuit for sound volume |
-
1984
- 1984-10-25 JP JP1984161389U patent/JPH0311937Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5888910A (en) * | 1981-11-20 | 1983-05-27 | Nippon Gakki Seizo Kk | Adjusting circuit for sound volume |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0311937Y2 (en) | 1991-03-22 |
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