JPS54134411A - Magnetic tape controller - Google Patents
Magnetic tape controllerInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52119210A (en) * | 1976-03-30 | 1977-10-06 | Fujitsu Ltd | Magnetic tape device |
-
1978
- 1978-04-10 JP JP4186578A patent/JPS54134411A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52119210A (en) * | 1976-03-30 | 1977-10-06 | Fujitsu Ltd | Magnetic tape device |
Cited By (1)
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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