JPS58140513U - dropout compensator - Google Patents
dropout compensatorInfo
- Publication number
- JPS58140513U JPS58140513U JP3260782U JP3260782U JPS58140513U JP S58140513 U JPS58140513 U JP S58140513U JP 3260782 U JP3260782 U JP 3260782U JP 3260782 U JP3260782 U JP 3260782U JP S58140513 U JPS58140513 U JP S58140513U
- Authority
- JP
- Japan
- Prior art keywords
- dropout compensation
- dropout
- input signal
- detection signal
- compensation 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
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図は従来例のドロップアウト補償装置の回路図、第
２図は第１図の各部波形図、第３図はドロップアウト検
出性能を示す線図、第４図は本考案に関する第１の実施
例の回路図、第５図は第４ 、図の各部波形図、第
６図は本考案に関する第２の実施例の回路図、第７図は
第６図の各部波形図、第８図は本考案に関する第３の実
施例の回路図、第９図は第８図の各部波形図である。
１・・・再生ＦＭ入力信号、２・・・ドロップアウト検
出回路、５・・・切換回路、７・・・同期分離回路、１
７ａ、 １７ｂ、 １７Ｃ，１７ｄ−・・ゲート回路、
１８．１９・・・モータロック信号、２５−・・スイッ
チ用トランジスタ。Fig. 1 is a circuit diagram of a conventional dropout compensation device, Fig. 2 is a waveform diagram of each part of Fig. 1, Fig. 3 is a diagram showing dropout detection performance, and Fig. 4 is a diagram of the first part of the present invention. The circuit diagram of the embodiment, Fig. 5 is a waveform diagram of each part of Fig. 4, Fig. 6 is a circuit diagram of the second embodiment of the present invention, Fig. 7 is a waveform diagram of each part of Fig. 6, Fig. 8 9 is a circuit diagram of a third embodiment of the present invention, and FIG. 9 is a waveform diagram of each part of FIG. 8. DESCRIPTION OF SYMBOLS 1... Reproduction FM input signal, 2... Dropout detection circuit, 5... Switching circuit, 7... Synchronization separation circuit, 1
7a, 17b, 17C, 17d--gate circuit,
18.19...Motor lock signal, 25-...Switch transistor.
Claims (1)
り入力信号中のドロップアウトを検出して、ドロップア
ウト補償をなすドロップアウト補償回路を有するビデオ
ディスク等の記録情報再生装置であって、モータが一定
回転数に達したことを検知して検知信号を発生する手段
と、該検知信号の非発生期間該ドロップアウト補償回路
の補償動作を停止せしめる手段とを設けたことを特徴と
するドロップアウト補償装置。A recording information reproducing apparatus for a video disc or the like having a dropout compensation circuit that detects dropouts in an input signal by determining the presence or absence of an input signal within a predetermined frequency range and performs dropout compensation, Dropout compensation comprising: means for detecting that a certain number of rotations has been reached and generating a detection signal; and means for stopping the compensation operation of the dropout compensation circuit during a period when the detection signal is not generated. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3260782U JPS58140513U (en) | 1982-03-10 | 1982-03-10 | dropout compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3260782U JPS58140513U (en) | 1982-03-10 | 1982-03-10 | dropout compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58140513U true JPS58140513U (en) | 1983-09-21 |
Family
ID=30044202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3260782U Pending JPS58140513U (en) | 1982-03-10 | 1982-03-10 | dropout compensator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58140513U (en) |
-
1982
- 1982-03-10 JP JP3260782U patent/JPS58140513U/en active Pending
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