JPS5647908A - Magnetic tape processor - Google Patents

Magnetic tape processor

Info

Publication number
JPS5647908A
JPS5647908A JP12225479A JP12225479A JPS5647908A JP S5647908 A JPS5647908 A JP S5647908A JP 12225479 A JP12225479 A JP 12225479A JP 12225479 A JP12225479 A JP 12225479A JP S5647908 A JPS5647908 A JP S5647908A
Authority
JP
Japan
Prior art keywords
magnetic tape
write operation
specific pattern
rewrite
sends
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
JP12225479A
Other languages
Japanese (ja)
Inventor
Shinichi Nomiyama
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12225479A priority Critical patent/JPS5647908A/en
Publication of JPS5647908A publication Critical patent/JPS5647908A/en
Pending legal-status Critical Current

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  • Digital Magnetic Recording (AREA)

Abstract

PURPOSE: To facilitate corrections of a rewrite position of rewrite operation by additionally recording a special pattern when an error is detected during write operation.
CONSTITUTION: Unit 300 records groups of information bytes and also transfers them to processor 200. Transferred information byte groups are received by reception part 6 and stored in error signal memory part 7. When detecting error information being in memory part 7, processing control part 2 sends a specific pattern from specific pattern generation part 8 to magnetic tape unit 300, where it is recorded on a medium. As write operation becomes abnormal, processing part 2 sends the reposition indication to magnetic tape unit 300, which runs the magnetic tape backward and starts a read. From reception part 6, the specific pattern is detected as many as prescribed and when a backward run of the same distance with write operation is informed of from supervisory part 9, control part 2 indicates the end of positioning operation. Thus, corrections of a rewrite position can be facilitated.
COPYRIGHT: (C)1981,JPO&Japio
JP12225479A 1979-09-21 1979-09-21 Magnetic tape processor Pending JPS5647908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12225479A JPS5647908A (en) 1979-09-21 1979-09-21 Magnetic tape processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12225479A JPS5647908A (en) 1979-09-21 1979-09-21 Magnetic tape processor

Publications (1)

Publication Number Publication Date
JPS5647908A true JPS5647908A (en) 1981-04-30

Family

ID=14831394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12225479A Pending JPS5647908A (en) 1979-09-21 1979-09-21 Magnetic tape processor

Country Status (1)

Country Link
JP (1) JPS5647908A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0140456A1 (en) * 1983-11-02 1985-05-08 Koninklijke Philips Electronics N.V. Data processing system in which unreliable words in the memory are replaced by an unreliability indicator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0140456A1 (en) * 1983-11-02 1985-05-08 Koninklijke Philips Electronics N.V. Data processing system in which unreliable words in the memory are replaced by an unreliability indicator

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