JPS6476576A - Magnetic disk reproducing device - Google Patents

Magnetic disk reproducing device

Info

Publication number
JPS6476576A
JPS6476576A JP23450587A JP23450587A JPS6476576A JP S6476576 A JPS6476576 A JP S6476576A JP 23450587 A JP23450587 A JP 23450587A JP 23450587 A JP23450587 A JP 23450587A JP S6476576 A JPS6476576 A JP S6476576A
Authority
JP
Japan
Prior art keywords
circuit
magnetic disk
signal
error
supplied
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
JP23450587A
Other languages
Japanese (ja)
Inventor
Kaoru Yanagimoto
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP23450587A priority Critical patent/JPS6476576A/en
Publication of JPS6476576A publication Critical patent/JPS6476576A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To always perform reproduction satisfactorily by performing the correction of tracking by a signal from an error detecting means at the time of reproducing a magnetic disk recorded with low density. CONSTITUTION:A signal from an amplifier 11 is supplied to the detection circuit 14 of a tracking servo signal, and is supplied to an adder circuit 5 via the contact at the high density recording side of a switch 15, then, the reproduction of the magnetic disk 9 recorded with high density is performed. Furthermore, an error detecting signal from an error detection correction circuit 13 is supplied to the adder circuit 5 via the contact at the low density recording side of the switch 15. Therefore, the scanning position of a head 8 is controlled in a direction to decrease an error detected at the circuit 13, and for example, the retry of the same sector is performed by supplying a discrimination signal whose error correction is impossible from the circuit 13 to a control circuit 4, and also, the scanning position of the head 8 can be controlled. In such a way, it is possible to perform the reproduction of the magnetic disk 9 recorded with low density.
JP23450587A 1987-09-18 1987-09-18 Magnetic disk reproducing device Pending JPS6476576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23450587A JPS6476576A (en) 1987-09-18 1987-09-18 Magnetic disk reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23450587A JPS6476576A (en) 1987-09-18 1987-09-18 Magnetic disk reproducing device

Publications (1)

Publication Number Publication Date
JPS6476576A true JPS6476576A (en) 1989-03-22

Family

ID=16972080

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23450587A Pending JPS6476576A (en) 1987-09-18 1987-09-18 Magnetic disk reproducing device

Country Status (1)

Country Link
JP (1) JPS6476576A (en)

Similar Documents

Publication Publication Date Title
MY117134A (en) Data recording and/or reproducing apparatus,and disc-shaped recording medium
SE7901671L (en) FOLLOW-UP SYSTEM FOR A MAGNETIC HEAD
EP0592037A3 (en) Recording device with temperature-dependent write-current control
MY113740A (en) Optical disc reproducing method and apparatus for controlling servo gain and/or offset
US4680744A (en) Disc player having pick-up tilt servo system combined with disc presence detection circuits
JPS6479942A (en) Information processor
ATE72495T1 (en) ARRANGEMENT FOR PLAYBACK OF RECORDED DATA.
CA2067564A1 (en) Information recording and reproducing apparatus
KR900003004B1 (en) Disk player
MY104528A (en) Optical disc servo apparatus.
JPS6476576A (en) Magnetic disk reproducing device
JPS5766576A (en) Information recording medium
JPS5755530A (en) Head tracking controller
JPS6410409A (en) Magnetic recording and reproducing device
KR920020488A (en) One-channel method and apparatus for automatically and appropriately performing insert editing on a signal recorder
JPS6435751A (en) Information signal reproducing device
JPS57127975A (en) Disc recording medium
JPS5786151A (en) Tape recorder
MY112175A (en) Magnetic recording and reproducing apparatus having means for discriminating performance of magnetic recording medium to achieve optimum recording and reproduction.
JPS56134366A (en) Disk device
EP0361488A3 (en) Magnetic disk apparatus having a circuit for detecting the position of servo information recorded on a magnetic disk
JPH03276431A (en) Optical recording and reproducing device
JPS6470975A (en) Information recording and reproducing device
KR900003866A (en) Helical scanning 4-head data storage method and apparatus
JPS5730160A (en) Information reproducing device