JPH02101619U - - Google Patents
Info
- Publication number
- JPH02101619U JPH02101619U JP955889U JP955889U JPH02101619U JP H02101619 U JPH02101619 U JP H02101619U JP 955889 U JP955889 U JP 955889U JP 955889 U JP955889 U JP 955889U JP H02101619 U JPH02101619 U JP H02101619U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- level
- circuit
- synchronizing signal
- control circuit
- 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 5
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 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回路図、第２図は
従来の一例の回路図である。
１……レベル検出回路、５……スイツチ手段、
６……同期信号生成手段、８……コンパレータ、
９……制御信号生成回路、１０……レベル制御手
段。
FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is a circuit diagram of a conventional example. 1...Level detection circuit, 5...Switch means,
6... Synchronization signal generation means, 8... Comparator,
9... Control signal generation circuit, 10... Level control means.
Claims (1)
力信号の包路線レベルと基準レベルとをレベル検
出回路により比較し、その比較結果に応じた検出
信号を生成し、該検出信号より制御信号生成回路
により制御信号を生成し、該レベル制御回路によ
り該制御信号に応じて該出力信号の振幅を一定値
に制御する自動利得制御回路において、 前記出力信号を出力すべき期間とで所定レベル
となる同期信号を生成する同期信号生成手段と、 該同期信号生成回路からの同期信号に応じてオ
ン・オフし、前記同期信号が所定レベルのときの
みオンとなり、前記制御信号を前記レベル制御回
路に供給するスイツチ手段とを具備してなる自動
利得制御回路。[Claims for Utility Model Registration] A level detection circuit compares the envelope level of an output signal obtained from an input signal through a level control circuit with a reference level, generates a detection signal according to the comparison result, and generates a detection signal according to the comparison result. In an automatic gain control circuit in which a control signal is generated by a control signal generation circuit from a detection signal, and the amplitude of the output signal is controlled to a constant value by the level control circuit according to the control signal, the period during which the output signal is to be outputted. a synchronizing signal generating means for generating a synchronizing signal having a predetermined level with the synchronizing signal generating circuit; and a synchronizing signal generating means that is turned on and off according to the synchronizing signal from the synchronizing signal generating circuit, turns on only when the synchronizing signal is at a predetermined level, and controls the control signal. an automatic gain control circuit comprising switch means for supplying the level control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP955889U JPH02101619U (en) | 1989-01-30 | 1989-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP955889U JPH02101619U (en) | 1989-01-30 | 1989-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02101619U true JPH02101619U (en) | 1990-08-13 |
Family
ID=31216404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP955889U Pending JPH02101619U (en) | 1989-01-30 | 1989-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02101619U (en) |
-
1989
- 1989-01-30 JP JP955889U patent/JPH02101619U/ja active Pending
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