JPS62154267A - Information reproducing device - Google Patents

Information reproducing device

Info

Publication number
JPS62154267A
JPS62154267A JP29641585A JP29641585A JPS62154267A JP S62154267 A JPS62154267 A JP S62154267A JP 29641585 A JP29641585 A JP 29641585A JP 29641585 A JP29641585 A JP 29641585A JP S62154267 A JPS62154267 A JP S62154267A
Authority
JP
Japan
Prior art keywords
sector
data
faulty
substitute
cpu
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.)
Granted
Application number
JP29641585A
Other languages
Japanese (ja)
Other versions
JP2623238B2 (en
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 JP60296415A priority Critical patent/JP2623238B2/en
Priority to EP86307489A priority patent/EP0219261B1/en
Priority to DE8686307489T priority patent/DE3687156T2/en
Priority to US06/914,193 priority patent/US4849956A/en
Publication of JPS62154267A publication Critical patent/JPS62154267A/en
Application granted granted Critical
Publication of JP2623238B2 publication Critical patent/JP2623238B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To prevent decline of the transfer rate of reproduced data even if the number of faulty sectors is large, by reproducing information from a substitute sector corresponding to a faulty sector and previously storing in a buffer for substitute sector.
CONSTITUTION: When an optical disk 48 is mounted, a CPU 93 stores substitute sector management information recorded in a management table 43 on the optical disk 48 in a memory 92. When a faulty sector B exists, the CPU 93 picks up the sector numbers of all faulty sectors B in a data area A, reproduces data recorded in a substitute sector C, and stored the data in a buffer memory 89 for substitute sector. Thereafter, the CPU 93 accesses an optical disk 41 at the data reproduction starting address of the data area A and starts data reproduction. When the optical head 41 comes to the upside of the faulty sector B during the data reproduction, data which are stored in the buffer memory 89 for substitute sector and reproduced from the substitute sector C corresponding to the faulty sector B are transferred to a track buffer 82.
COPYRIGHT: (C)1987,JPO&Japio
JP60296415A 1985-10-03 1985-12-25 Information playback method Expired - Lifetime JP2623238B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP60296415A JP2623238B2 (en) 1985-12-25 1985-12-25 Information playback method
EP86307489A EP0219261B1 (en) 1985-10-03 1986-09-30 Information recording and reproducing apparatus
DE8686307489T DE3687156T2 (en) 1985-10-03 1986-09-30 ARRANGEMENT FOR INFORMATION RECORDING AND PLAYBACK.
US06/914,193 US4849956A (en) 1985-10-03 1986-10-01 Information recording and reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60296415A JP2623238B2 (en) 1985-12-25 1985-12-25 Information playback method

Publications (2)

Publication Number Publication Date
JPS62154267A true JPS62154267A (en) 1987-07-09
JP2623238B2 JP2623238B2 (en) 1997-06-25

Family

ID=17833247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60296415A Expired - Lifetime JP2623238B2 (en) 1985-10-03 1985-12-25 Information playback method

Country Status (1)

Country Link
JP (1) JP2623238B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03207053A (en) * 1990-01-09 1991-09-10 Canon Inc Information recording and reproducing device
JPH076003A (en) * 1993-06-21 1995-01-10 Nec Corp Magnetic disk controller
JPH08234926A (en) * 1995-02-24 1996-09-13 Nec Corp Defect processing method for magnetic disk drive

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114150A (en) * 1981-12-28 1983-07-07 Panafacom Ltd Alternation controlling system for disc device
JPS58194143A (en) * 1982-05-07 1983-11-12 Hitachi Ltd Recording and reproducing system of data
JPS6013360A (en) * 1983-07-01 1985-01-23 Hitachi Ltd Storage device
JPS6038764A (en) * 1983-08-11 1985-02-28 Hitachi Ltd Information recording system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114150A (en) * 1981-12-28 1983-07-07 Panafacom Ltd Alternation controlling system for disc device
JPS58194143A (en) * 1982-05-07 1983-11-12 Hitachi Ltd Recording and reproducing system of data
JPS6013360A (en) * 1983-07-01 1985-01-23 Hitachi Ltd Storage device
JPS6038764A (en) * 1983-08-11 1985-02-28 Hitachi Ltd Information recording system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03207053A (en) * 1990-01-09 1991-09-10 Canon Inc Information recording and reproducing device
JPH076003A (en) * 1993-06-21 1995-01-10 Nec Corp Magnetic disk controller
JPH08234926A (en) * 1995-02-24 1996-09-13 Nec Corp Defect processing method for magnetic disk drive

Also Published As

Publication number Publication date
JP2623238B2 (en) 1997-06-25

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term