JPS6383883U - - Google Patents
Info
- Publication number
- JPS6383883U JPS6383883U JP17852886U JP17852886U JPS6383883U JP S6383883 U JPS6383883 U JP S6383883U JP 17852886 U JP17852886 U JP 17852886U JP 17852886 U JP17852886 U JP 17852886U JP S6383883 U JPS6383883 U JP S6383883U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- dropout compensation
- detection
- outputs
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Television Signal Processing For Recording (AREA)
Description
第１図は本考案の磁気再生装置を示す回路・ブ
ロツク図、第２図は従来の磁気再生装置に用いら
れたドロツプアウト補償回路を示すブロツク図、
第３図は第１図及び第２図の各部波形を示すタイ
ミングチヤートである。
４……再生信号レベル検出回路、６……ドロツ
プアウト補償回路、９……積分回路、１９……ト
ランジスタ。
FIG. 1 is a circuit/block diagram showing the magnetic reproducing device of the present invention, and FIG. 2 is a block diagram showing a dropout compensation circuit used in a conventional magnetic reproducing device.
FIG. 3 is a timing chart showing waveforms of various parts in FIGS. 1 and 2. FIG. 4... Reproduction signal level detection circuit, 6... Dropout compensation circuit, 9... Integrating circuit, 19... Transistor.
Claims (1)
に含まれるドロツプアウト及び無信号の期間を検
出し、該期間だけ検出信号を出力する再生信号レ
ベル検出回路を有し、前記検出信号によつて前記
期間をドロツプアウト補償信号にて置換するドロ
ツプアウト補償回路と、前記検出信号を積分し、
無信号時に所定レベル以上の積分信号を出力する
積分回路と、無信号時の前記積分信号によつて前
記ドロツプアウト補償信号をミユートするミユー
ト回路より成ることを特徴とする磁気再生装置。 It has a reproduction signal level detection circuit that detects dropouts and no-signal periods included in the video signal from the reproduction signal level from the magnetic medium, and outputs a detection signal only during the period, and detects the period using the detection signal. a dropout compensation circuit that replaces the dropout compensation signal with a dropout compensation signal; and a dropout compensation circuit that integrates the detection signal;
A magnetic reproducing device comprising: an integrating circuit that outputs an integrated signal of a predetermined level or higher when there is no signal; and a mute circuit that mutes the dropout compensation signal using the integrated signal when there is no signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17852886U JPS6383883U (en) | 1986-11-20 | 1986-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17852886U JPS6383883U (en) | 1986-11-20 | 1986-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6383883U true JPS6383883U (en) | 1988-06-01 |
Family
ID=31120742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17852886U Pending JPS6383883U (en) | 1986-11-20 | 1986-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6383883U (en) |
-
1986
- 1986-11-20 JP JP17852886U patent/JPS6383883U/ja active Pending
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