JPS5644167A - Disk device - Google Patents

Disk device

Info

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
Application number
JP11977579A
Other languages
Japanese (ja)
Inventor
Masayoshi Kamo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11977579A priority Critical patent/JPS5644167A/en
Publication of JPS5644167A publication Critical patent/JPS5644167A/en
Pending legal-status Critical Current

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
JP11977579A 1979-09-18 1979-09-18 Disk device Pending JPS5644167A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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