JPS617174U - Dropout compensation circuit - Google Patents
Dropout compensation circuitInfo
- Publication number
- JPS617174U JPS617174U JP9170984U JP9170984U JPS617174U JP S617174 U JPS617174 U JP S617174U JP 9170984 U JP9170984 U JP 9170984U JP 9170984 U JP9170984 U JP 9170984U JP S617174 U JPS617174 U JP S617174U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- detection circuit
- voltage
- dropout
- threshold setting
- 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
Landscapes
- Television Signal Processing For Recording (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案一実施例の回路ブロック図、第２図は要
部波形図である。
１０・・・・・・検波回路、１１・・・・・・シュミッ
ト回路、１３・・・・・・時定数回路、１５・・・・・
・しきい値設定回路、１６・・・・・・制御電圧作成回
路、Ｄ・・・・・・ダイオード。FIG. 1 is a circuit block diagram of an embodiment of the present invention, and FIG. 2 is a waveform diagram of main parts. 10...Detection circuit, 11...Schmitt circuit, 13...Time constant circuit, 15...
- Threshold setting circuit, 16... Control voltage creation circuit, D... Diode.
Claims (1)
アウトとみなすドロップアウト検出回路を備えたドロッ
プアウト補償回路において、前記ドロップアウト検出回
路は前記再生ＦＭ信号のエンベロープに関連する電圧を
出力する検波回路と、該検波回路出力を入力としてしき
い値がしきい値段定端子に印加される電圧によって定ま
るシュミット回路と、前記検波回路出力を入力とし前記
検波回路出力の低下に対応して前記シュミット回路のし
きい値を低下せしめる方向ｉこ変化する制御電圧を作成
する制御電圧作成回路と、前記しきい値設定端子に所定
の設定電圧を付与するしきい値設定回路と、前記制御電
圧が前記所定の設定電圧より高い時に前記しきい値設定
端子に前記制御電圧を供給する結合手段とを備えること
を特徴とするドロップアウト補償回路。A dropout compensation circuit includes a dropout detection circuit that detects a drop in the envelope of the reproduced FM signal and considers it as a dropout, wherein the dropout detection circuit is a detection circuit that outputs a voltage related to the envelope of the reproduced FM signal. , a Schmitt circuit whose threshold value is determined by the voltage applied to a threshold stage constant terminal with the output of the detection circuit as input, and a Schmitt circuit with the output of the detection circuit as input and which responds to a decrease in the output of the detection circuit a control voltage generation circuit that generates a control voltage that changes in a direction to lower a threshold; a threshold setting circuit that applies a predetermined set voltage to the threshold setting terminal; and a threshold setting circuit that applies a predetermined set voltage to the threshold setting terminal; a coupling means for supplying the control voltage to the threshold setting terminal when the control voltage is higher than the voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9170984U JPS617174U (en) | 1984-06-19 | 1984-06-19 | Dropout compensation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9170984U JPS617174U (en) | 1984-06-19 | 1984-06-19 | Dropout compensation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS617174U true JPS617174U (en) | 1986-01-17 |
Family
ID=30647841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9170984U Pending JPS617174U (en) | 1984-06-19 | 1984-06-19 | Dropout compensation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS617174U (en) |
-
1984
- 1984-06-19 JP JP9170984U patent/JPS617174U/en active Pending
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