JPS54134411A - Magnetic tape controller - Google Patents

Magnetic tape controller

Info

Publication number
JPS54134411A
JPS54134411A JP4186578A JP4186578A JPS54134411A JP S54134411 A JPS54134411 A JP S54134411A JP 4186578 A JP4186578 A JP 4186578A JP 4186578 A JP4186578 A JP 4186578A JP S54134411 A JPS54134411 A JP S54134411A
Authority
JP
Japan
Prior art keywords
error
tape
magnetic tape
unit
rewinding
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
JP4186578A
Other languages
Japanese (ja)
Inventor
Akifumi Yahiro
Hirokazu Hirayama
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 JP4186578A priority Critical patent/JPS54134411A/en
Publication of JPS54134411A publication Critical patent/JPS54134411A/en
Pending legal-status Critical Current

Links

Landscapes

  • Digital Magnetic Recording (AREA)

Abstract

PURPOSE: To efficiently accomplish the access of a magnetic tape by rewinding and retrying a preset length of the magnetic tape in accordance with error detection.
CONSTITUTION: The information divided into blocks is written in the tape of a magnetic tape device 1 such as a cassette through a write control unit 3, a read control unit 5 and a driver 2 and is read out therefrom so that an error detecting unit 6 detects an error. The tape is rewound a preset length by a rewinding unit 7. Upon detecting of the writing error, the erasure and rewriting of the record are performed through an error information demagnetizing unit 8 and a rewrite control unit 9 by the action of the rewinding unit 7. Upon detecting of the reading error, the reread is performed through the reread control unit. As a result, the retrial is performed without rewinding the tape to its leading end. In case the writing operation is impossible, the replacement of the tape is not required so that the access of the magnetic tape can be performed efficiently.
COPYRIGHT: (C)1979,JPO&Japio
JP4186578A 1978-04-10 1978-04-10 Magnetic tape controller Pending JPS54134411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4186578A JPS54134411A (en) 1978-04-10 1978-04-10 Magnetic tape controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4186578A JPS54134411A (en) 1978-04-10 1978-04-10 Magnetic tape controller

Publications (1)

Publication Number Publication Date
JPS54134411A true JPS54134411A (en) 1979-10-18

Family

ID=12620144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4186578A Pending JPS54134411A (en) 1978-04-10 1978-04-10 Magnetic tape controller

Country Status (1)

Country Link
JP (1) JPS54134411A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0215404A (en) * 1988-07-04 1990-01-19 Fujitsu Ltd Recording error retrying method for recording device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52119210A (en) * 1976-03-30 1977-10-06 Fujitsu Ltd Magnetic tape device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52119210A (en) * 1976-03-30 1977-10-06 Fujitsu Ltd Magnetic tape device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0215404A (en) * 1988-07-04 1990-01-19 Fujitsu Ltd Recording error retrying method for recording device

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