JPS62141677A - Information recording and reproducing device - Google Patents

Information recording and reproducing device

Info

Publication number
JPS62141677A
JPS62141677A JP28382785A JP28382785A JPS62141677A JP S62141677 A JPS62141677 A JP S62141677A JP 28382785 A JP28382785 A JP 28382785A JP 28382785 A JP28382785 A JP 28382785A JP S62141677 A JPS62141677 A JP S62141677A
Authority
JP
Japan
Prior art keywords
track
substitute
data
defective
buffer
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
JP28382785A
Other languages
Japanese (ja)
Inventor
Takayuki Aizawa
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP28382785A priority Critical patent/JPS62141677A/en
Publication of JPS62141677A publication Critical patent/JPS62141677A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To shorten time for data transfer by storing data in a substitute track corresponding to a defective track in a substitute track buffer before reproducing data.
CONSTITUTION: A CPU 1 examines the existence of a defective track in a reproduction area from substitute track control information stored beforehand in a substitute track control information storage memory 19 from an optical disk, and reproduces all data in a substitute track for a defective track, and stores in a substitute track buffer 16. When a light head 6 comes on the defec tive track during data reproduction, the light head reproduces data of the substi tute track corresponding to the defective track from the buffer memory 16 and transfers to a track buffer 2. Thereby, it becommes unnecessary to access an optical head to a substitute track area during reproduction of a series of recorded data.
COPYRIGHT: (C)1987,JPO&Japio
JP28382785A 1985-12-17 1985-12-17 Information recording and reproducing device Pending JPS62141677A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28382785A JPS62141677A (en) 1985-12-17 1985-12-17 Information recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28382785A JPS62141677A (en) 1985-12-17 1985-12-17 Information recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS62141677A true JPS62141677A (en) 1987-06-25

Family

ID=17670667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28382785A Pending JPS62141677A (en) 1985-12-17 1985-12-17 Information recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS62141677A (en)

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