JPS5782215A - Dropout compensation circuit - Google Patents
Dropout compensation circuitInfo
- Publication number
- JPS5782215A JPS5782215A JP55158657A JP15865780A JPS5782215A JP S5782215 A JPS5782215 A JP S5782215A JP 55158657 A JP55158657 A JP 55158657A JP 15865780 A JP15865780 A JP 15865780A JP S5782215 A JPS5782215 A JP S5782215A
- Authority
- JP
- Japan
- Prior art keywords
- dropout
- period
- sampling pulse
- production
- detection signal
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
- Optical Recording Or Reproduction (AREA)
- Noise Elimination (AREA)
Abstract
PURPOSE:To avoid the delay in compensating operation and to achieve compensation of excellent dropout, by using a sampling pulse synchronized with a carrier wave for the output of a wave detection circiuit at all times and achieving the detected output through sample-holding. CONSTITUTION:The actual dropout generating period is detected by a monostable multivibrator MMV9 of the prestage and a detection signal (e) is produced, and the next MMV10 is triggered at the tail end ridge of this detection signal (e) to produce a delay signal of a prescribed period. The production of a sampling pulse (d) is inhibited by closing an AND gate 11 for the period of presence of the outputs (e), (f) of the MMVs 9, 10, and the transmission of the sampling pulse (d) to a sample holding circuit 4 is interrupted. Thus, the dropout and the distortion of waveform for a prescribed period after that are stored and compensated with a sampling level immediately before the production of the dropout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55158657A JPS5782215A (en) | 1980-11-11 | 1980-11-11 | Dropout compensation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55158657A JPS5782215A (en) | 1980-11-11 | 1980-11-11 | Dropout compensation circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5782215A true JPS5782215A (en) | 1982-05-22 |
| JPS639316B2 JPS639316B2 (en) | 1988-02-26 |
Family
ID=15676493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55158657A Granted JPS5782215A (en) | 1980-11-11 | 1980-11-11 | Dropout compensation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5782215A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6063929U (en) * | 1983-10-07 | 1985-05-07 | マルコン電子株式会社 | Multilayer film capacitor |
| JPH0373087U (en) * | 1989-11-20 | 1991-07-23 |
-
1980
- 1980-11-11 JP JP55158657A patent/JPS5782215A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6063929U (en) * | 1983-10-07 | 1985-05-07 | マルコン電子株式会社 | Multilayer film capacitor |
| JPH0373087U (en) * | 1989-11-20 | 1991-07-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS639316B2 (en) | 1988-02-26 |
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