JPS5644167A - Disk device - Google Patents
Disk deviceInfo
- Publication number
- JPS5644167A JPS5644167A JP11977579A JP11977579A JPS5644167A JP S5644167 A JPS5644167 A JP S5644167A JP 11977579 A JP11977579 A JP 11977579A JP 11977579 A JP11977579 A JP 11977579A JP S5644167 A JPS5644167 A JP S5644167A
- Authority
- JP
- Japan
- Prior art keywords
- seek operation
- pulse
- recording
- generated
- reproduction
- 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
- Signal Processing For Digital Recording And Reproducing (AREA)
- Moving Of Head For Track Selection And Changing (AREA)
Abstract
PURPOSE: To facilitate control by recording or reproducing the following information, only when the seek operation of a random track ends, within the range of pulses entered in a sector servo signal at both terminals.
CONSTITUTION: At the front and back of servo signal 14f, pulses 55 and 56 are arranged and between the both, seek operation confirmation pulse 57 is generated. The seek operation is started from the point in time when pulse 55 is generated after the seek instruction is received and while seek operation confirmation pulse 57 is being generated, positioning at a random track is completed. The recording and reproduction of the following information are started with recording-reproduction confirmation pulse 58 generated at the rise of seek operation confirmation pulse 57. In case that the seek operation is not completed within pulse 57 due to a fault of the head moving mechanism, etc., the following recording and reproduction are not done.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11977579A JPS5644167A (en) | 1979-09-18 | 1979-09-18 | Disk device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11977579A JPS5644167A (en) | 1979-09-18 | 1979-09-18 | Disk device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5644167A true JPS5644167A (en) | 1981-04-23 |
Family
ID=14769900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11977579A Pending JPS5644167A (en) | 1979-09-18 | 1979-09-18 | Disk device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5644167A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS583113A (en) * | 1981-06-30 | 1983-01-08 | Fujitsu Ltd | Disc controlling system |
JPS60202575A (en) * | 1984-03-26 | 1985-10-14 | Victor Co Of Japan Ltd | Information recording disc and its reproducer |
-
1979
- 1979-09-18 JP JP11977579A patent/JPS5644167A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS583113A (en) * | 1981-06-30 | 1983-01-08 | Fujitsu Ltd | Disc controlling system |
JPH0368468B2 (en) * | 1981-06-30 | 1991-10-28 | Fujitsu Ltd | |
JPS60202575A (en) * | 1984-03-26 | 1985-10-14 | Victor Co Of Japan Ltd | Information recording disc and its reproducer |
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