JPS5760516A - Retrial control system in magnetic tape device - Google Patents

Retrial control system in magnetic tape device

Info

Publication number
JPS5760516A
JPS5760516A JP55135597A JP13559780A JPS5760516A JP S5760516 A JPS5760516 A JP S5760516A JP 55135597 A JP55135597 A JP 55135597A JP 13559780 A JP13559780 A JP 13559780A JP S5760516 A JPS5760516 A JP S5760516A
Authority
JP
Japan
Prior art keywords
retrial
magnetic tape
error
tape medium
length
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
JP55135597A
Other languages
Japanese (ja)
Inventor
Akihiro Hayakawa
Tadashi Hasegawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP55135597A priority Critical patent/JPS5760516A/en
Publication of JPS5760516A publication Critical patent/JPS5760516A/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
    • G11B20/1816—Testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Digital Magnetic Recording (AREA)

Abstract

PURPOSE:To reduce the time required for retrial and no increase the utilizing efficiency of magnetic tape medium, by changing the signal erasing length of magnetic tape medium according to the number of retrial times. CONSTITUTION:When an error is detected with a format section 2 and a check circuit 3 and the error is obtained through defective magnetic tape medium 22, a signal is transmitted to a retrial control section 9. After the section 9 rewinds a prescribed length of tape media 22 and erases the written signal, it rewrites and detects the presence or absence of error again. In this case, if retrial is not successful and an error is detected, the erasing length is made longer sequentially with the instruction of a counter 10 for retrial. Thus, unnecessary erasing length of magnetic tape medium is shortened to increase the usage efficiency of medium and to reduce the time required for retrial.
JP55135597A 1980-09-29 1980-09-29 Retrial control system in magnetic tape device Pending JPS5760516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55135597A JPS5760516A (en) 1980-09-29 1980-09-29 Retrial control system in magnetic tape device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55135597A JPS5760516A (en) 1980-09-29 1980-09-29 Retrial control system in magnetic tape device

Publications (1)

Publication Number Publication Date
JPS5760516A true JPS5760516A (en) 1982-04-12

Family

ID=15155533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55135597A Pending JPS5760516A (en) 1980-09-29 1980-09-29 Retrial control system in magnetic tape device

Country Status (1)

Country Link
JP (1) JPS5760516A (en)

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