JPS5724007A - Magnetic surface storage device - Google Patents
Magnetic surface storage deviceInfo
- Publication number
- JPS5724007A JPS5724007A JP9784880A JP9784880A JPS5724007A JP S5724007 A JPS5724007 A JP S5724007A JP 9784880 A JP9784880 A JP 9784880A JP 9784880 A JP9784880 A JP 9784880A JP S5724007 A JPS5724007 A JP S5724007A
- Authority
- JP
- Japan
- Prior art keywords
- address
- reading
- drum
- information
- occurrence
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE:To prevent the occurrence of a reading error, by shifting the information stored in the address where the reading voltage drops to a stand-by region. CONSTITUTION:The reading voltage given from a magnetic drum 1, etc. through a head selecting circuit 4 is compared with the reference voltage by a comparator 9 to detect a drop of the reading voltage. Thus a processor 10 to which an address to receive access is applied via a control device 8 stores the address plus the information having a dropped level and read through a read amplifier 5 into a memory 11. Then said information is transferred to the stand-by region of the drum 1 via the processor 10 and by making use of the access idle time of the drum 1. And the collation between the new and old addresses is stored in the memory 11. In such system, the occurrence of a reading error can be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9784880A JPS5724007A (en) | 1980-07-17 | 1980-07-17 | Magnetic surface storage device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9784880A JPS5724007A (en) | 1980-07-17 | 1980-07-17 | Magnetic surface storage device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5724007A true JPS5724007A (en) | 1982-02-08 |
Family
ID=14203145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9784880A Pending JPS5724007A (en) | 1980-07-17 | 1980-07-17 | Magnetic surface storage device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5724007A (en) |
-
1980
- 1980-07-17 JP JP9784880A patent/JPS5724007A/en active Pending
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