JPS57210411A - Discoidal information recording medium and its reproducing device - Google Patents
Discoidal information recording medium and its reproducing deviceInfo
- Publication number
- JPS57210411A JPS57210411A JP56096354A JP9635481A JPS57210411A JP S57210411 A JPS57210411 A JP S57210411A JP 56096354 A JP56096354 A JP 56096354A JP 9635481 A JP9635481 A JP 9635481A JP S57210411 A JPS57210411 A JP S57210411A
- Authority
- JP
- Japan
- Prior art keywords
- mixer
- supplied
- recording medium
- information recording
- chrominance 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.)
- Pending
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
- G11B20/1803—Error detection or correction; Testing, e.g. of drop-outs by redundancy in data representation
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
PURPOSE:To compensate a dropout by delaying one of two sound signals of two channels behind the other by certain time, and repeatedly recording two channel sound signals up to the one-turn period of a discoidal information recording medium during a plural-turn period. CONSTITUTION:A sound signal arriving at an input terminal 1 is branched into two and supplied to frequency modulators 3 and 4 respectively. The output of the modulator 3 is supplied directly to a mixer 5, and that of the modulator 4 is supplied to the mixer 5 through a one horizontal scanning period (1H) delay circuit 6. A color video signal arriving at an input terminal 2 is separated into a luminance and a chrominance signal by a luminance and chrominance signal separating circuit 7; the luminance signal is band-limited and the chrominance signal is converted into a low frequency converted chrominance signal, which is supplied to a mixer 9. The output of the mixer 9 is supplied to the mixer 5. The output of the mixer 5 is modulated by a frequency modulator 10 and supplied to a discoidal information recording medium.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56096354A JPS57210411A (en) | 1981-06-22 | 1981-06-22 | Discoidal information recording medium and its reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56096354A JPS57210411A (en) | 1981-06-22 | 1981-06-22 | Discoidal information recording medium and its reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57210411A true JPS57210411A (en) | 1982-12-24 |
Family
ID=14162654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56096354A Pending JPS57210411A (en) | 1981-06-22 | 1981-06-22 | Discoidal information recording medium and its reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57210411A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5188011A (en) * | 1975-01-29 | 1976-08-02 | ||
JPS5189710A (en) * | 1975-02-05 | 1976-08-06 | Kirokubaitai oyobi sonokirokuhoho | |
JPS5334885U (en) * | 1976-09-01 | 1978-03-27 |
-
1981
- 1981-06-22 JP JP56096354A patent/JPS57210411A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5188011A (en) * | 1975-01-29 | 1976-08-02 | ||
JPS5189710A (en) * | 1975-02-05 | 1976-08-06 | Kirokubaitai oyobi sonokirokuhoho | |
JPS5334885U (en) * | 1976-09-01 | 1978-03-27 |
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