JPS6467777A - Disk-shaped recording medium - Google Patents

Disk-shaped recording medium

Info

Publication number
JPS6467777A
JPS6467777A JP22385187A JP22385187A JPS6467777A JP S6467777 A JPS6467777 A JP S6467777A JP 22385187 A JP22385187 A JP 22385187A JP 22385187 A JP22385187 A JP 22385187A JP S6467777 A JPS6467777 A JP S6467777A
Authority
JP
Japan
Prior art keywords
servo
track
data
trd
servo information
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
JP22385187A
Other languages
Japanese (ja)
Inventor
Tadashi Takahashi
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 JP22385187A priority Critical patent/JPS6467777A/en
Publication of JPS6467777A publication Critical patent/JPS6467777A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To attain highly accurate tracking control by interpolating servo information based on a servo signal detected at a data track by using servo information based on a servo signal detected at a servo track. CONSTITUTION:The sector length (the length of data area D i.e. interval between servo areas S) of data tracks TRD (tracks TR00-TR239) is set longer than conventional. And, servo information in the intermediate position between servo areas on the data tracks TRD is obtained by operating an interpolation based on servo information obtained from a servo track in the outer vicinity and, when necessary, obtained from a servo track in the inner vicinity. The tracking control is executed based on thus obtained imaginary servo information. As a result, a highly accurate control can be attained even in case the sector length of the data track TRD is long.
JP22385187A 1987-09-09 1987-09-09 Disk-shaped recording medium Pending JPS6467777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22385187A JPS6467777A (en) 1987-09-09 1987-09-09 Disk-shaped recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22385187A JPS6467777A (en) 1987-09-09 1987-09-09 Disk-shaped recording medium

Publications (1)

Publication Number Publication Date
JPS6467777A true JPS6467777A (en) 1989-03-14

Family

ID=16804710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22385187A Pending JPS6467777A (en) 1987-09-09 1987-09-09 Disk-shaped recording medium

Country Status (1)

Country Link
JP (1) JPS6467777A (en)

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