JPS57100615A - Recording and reproducing system - Google Patents
Recording and reproducing systemInfo
- Publication number
- JPS57100615A JPS57100615A JP17689180A JP17689180A JPS57100615A JP S57100615 A JPS57100615 A JP S57100615A JP 17689180 A JP17689180 A JP 17689180A JP 17689180 A JP17689180 A JP 17689180A JP S57100615 A JPS57100615 A JP S57100615A
- Authority
- JP
- Japan
- Prior art keywords
- bit
- time
- counting
- information
- bits
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Dc Digital Transmission (AREA)
- Document Processing Apparatus (AREA)
Abstract
PURPOSE:To reproduce a recorded number of bits without fail even in case of absence, of bit by dividing one-bit data into pieces having time axes and recording information nearly in the center of bit time, and performing prescribed processing during reproduction. CONSTITUTION:One-bit data is divided into pieces having, for example, four time axes, and information 0 or 1 is recorded nearly in the center of bit time. For reproduction, counting is performed at intervals of 1/4-bit time to discriminate the information. At this time, if there is not the edge of a bit cell to come next, the counting is performed for the 1/4-bit time and counting with 1/4-bit time cycles is started again. Thus, even if the start of a bit is not detected owing to a dropout, etc., a recorded number of bits are reproduced without fail without bit absence.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17689180A JPS57100615A (en) | 1980-12-15 | 1980-12-15 | Recording and reproducing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17689180A JPS57100615A (en) | 1980-12-15 | 1980-12-15 | Recording and reproducing system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57100615A true JPS57100615A (en) | 1982-06-22 |
Family
ID=16021553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17689180A Pending JPS57100615A (en) | 1980-12-15 | 1980-12-15 | Recording and reproducing system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57100615A (en) |
-
1980
- 1980-12-15 JP JP17689180A patent/JPS57100615A/en active Pending
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