JPS5724007A - Magnetic surface storage device - Google Patents

Magnetic surface storage device

Info

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
Application number
JP9784880A
Other languages
Japanese (ja)
Inventor
Makoto Matsuhashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9784880A priority Critical patent/JPS5724007A/en
Publication of JPS5724007A publication Critical patent/JPS5724007A/en
Pending legal-status Critical Current

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.
JP9784880A 1980-07-17 1980-07-17 Magnetic surface storage device Pending JPS5724007A (en)

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)

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