JPS63108567A - Control circuit for optical disk - Google Patents

Control circuit for optical disk

Info

Publication number
JPS63108567A
JPS63108567A JP61252837A JP25283786A JPS63108567A JP S63108567 A JPS63108567 A JP S63108567A JP 61252837 A JP61252837 A JP 61252837A JP 25283786 A JP25283786 A JP 25283786A JP S63108567 A JPS63108567 A JP S63108567A
Authority
JP
Japan
Prior art keywords
error
sector
track
processing
ram
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
JP61252837A
Other languages
Japanese (ja)
Inventor
Yuichiro Hoshina
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP61252837A priority Critical patent/JPS63108567A/en
Publication of JPS63108567A publication Critical patent/JPS63108567A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce a processing time by processing all errors per track after processing every track with an error RAM to be written with a sector error information per sector in the track.
CONSTITUTION: When a sector address 4 sent from an optical disk drive unit coincides with a sector address 3 for access, an error data 18 per sector in a track is written to a RAM in accordance with an error RAM address 5 corresponding to the sector address. An upper-order control device detects thereby errors generated after the track-by-track process proceeding the next upon no errors generated. If an error is generated, the error RAM is then read out at once to find its error sector and the error batch processing is intensively carried out. Therefore, the upper-order controller is free from such errors during the sector processing while the optical disk rotates without no use, and the processing time is so reduced.
COPYRIGHT: (C)1988,JPO&Japio
JP61252837A 1986-10-25 1986-10-25 Control circuit for optical disk Pending JPS63108567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61252837A JPS63108567A (en) 1986-10-25 1986-10-25 Control circuit for optical disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61252837A JPS63108567A (en) 1986-10-25 1986-10-25 Control circuit for optical disk

Publications (1)

Publication Number Publication Date
JPS63108567A true JPS63108567A (en) 1988-05-13

Family

ID=17242879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61252837A Pending JPS63108567A (en) 1986-10-25 1986-10-25 Control circuit for optical disk

Country Status (1)

Country Link
JP (1) JPS63108567A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5596957A (en) * 1994-08-17 1997-01-28 Toyota Jidosha Kabushiki Kaisha Engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5733412A (en) * 1980-07-31 1982-02-23 Fujitsu Ltd Error processing method for sector type magnetic disk device
JPS58109954A (en) * 1981-12-23 1983-06-30 Mitsubishi Electric Corp Magnetic disc controller
JPS58169272A (en) * 1982-03-30 1983-10-05 Fujitsu Ltd Readout control system of magnetic storage device
JPS593574A (en) * 1982-06-30 1984-01-10 Nec Corp Magnetic disk controller

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5733412A (en) * 1980-07-31 1982-02-23 Fujitsu Ltd Error processing method for sector type magnetic disk device
JPS58109954A (en) * 1981-12-23 1983-06-30 Mitsubishi Electric Corp Magnetic disc controller
JPS58169272A (en) * 1982-03-30 1983-10-05 Fujitsu Ltd Readout control system of magnetic storage device
JPS593574A (en) * 1982-06-30 1984-01-10 Nec Corp Magnetic disk controller

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5596957A (en) * 1994-08-17 1997-01-28 Toyota Jidosha Kabushiki Kaisha Engine
US5662088A (en) * 1994-08-17 1997-09-02 Toyota Jidosha Kabushiki Kaisha Engine
US5666919A (en) * 1994-08-17 1997-09-16 Toyota Jidosha Kabushiki Kaisha Engine
US5671708A (en) * 1994-08-17 1997-09-30 Toyota Jidosha Kabushiki Kaisha Engine
US5676102A (en) * 1994-08-17 1997-10-14 Toyota Jidosha Kabushiki Kaisha Engine
US5704324A (en) * 1994-08-17 1998-01-06 Toyota Jidosha Kabushiki Kaisha Engine

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