JPS644990A - Optical disk system - Google Patents

Optical disk system

Info

Publication number
JPS644990A
JPS644990A JP16064187A JP16064187A JPS644990A JP S644990 A JPS644990 A JP S644990A JP 16064187 A JP16064187 A JP 16064187A JP 16064187 A JP16064187 A JP 16064187A JP S644990 A JPS644990 A JP S644990A
Authority
JP
Japan
Prior art keywords
optical disk
read
write
storage part
medium
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
JP16064187A
Other languages
Japanese (ja)
Inventor
Hiroyuki Oniki
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 JP16064187A priority Critical patent/JPS644990A/en
Publication of JPS644990A publication Critical patent/JPS644990A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To perform the management of an optical disk medium at high speed, by providing heads to read and write a reloadable storage part in a device for the read/write of the optical disk medium. CONSTITUTION:The upper plane of the optical disk medium 1 is unreloadable and forms an optical storage part 2 large in capacity, and the read/write of data is performed by an optical head 4. The lower plane of the optical disk medium 1 is reloadable and forms a magnetic storage part 3 small in capacity, and the read/write of medium managing information is performed by a magnetic head 5. At the magnetic storage part 3, the rewrite of the data is enabled, and it is possible to update the medium managing information by erasing preceding information and writing updated information at the same part as that where the preceding information has been written. In such a way, it is possible to shorten a time to read out the medium managing information.
JP16064187A 1987-06-26 1987-06-26 Optical disk system Pending JPS644990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16064187A JPS644990A (en) 1987-06-26 1987-06-26 Optical disk system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16064187A JPS644990A (en) 1987-06-26 1987-06-26 Optical disk system

Publications (1)

Publication Number Publication Date
JPS644990A true JPS644990A (en) 1989-01-10

Family

ID=15719325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16064187A Pending JPS644990A (en) 1987-06-26 1987-06-26 Optical disk system

Country Status (1)

Country Link
JP (1) JPS644990A (en)

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