JPH03192436A - Information recording and reproducing system - Google Patents

Information recording and reproducing system

Info

Publication number
JPH03192436A
JPH03192436A JP1331318A JP33131889A JPH03192436A JP H03192436 A JPH03192436 A JP H03192436A JP 1331318 A JP1331318 A JP 1331318A JP 33131889 A JP33131889 A JP 33131889A JP H03192436 A JPH03192436 A JP H03192436A
Authority
JP
Japan
Prior art keywords
directory
data
data file
area
recording
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
JP1331318A
Other languages
Japanese (ja)
Inventor
Shoichiro Funato
Toshiyuki Oda
Tamotsu Ito
Shigeki Inoue
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1331318A priority Critical patent/JPH03192436A/en
Publication of JPH03192436A publication Critical patent/JPH03192436A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To utilize a data file, which is not equipped with directory data, again by newly preparing the directory data and recording the data to a directory recording area when there is the data file, which is not equipped with the directory data, in a data file recording area.
CONSTITUTION: Before writing the next data file, final directory data 1 of the file directory recording area are read out and a data write pointer M is calculated. When the data file recording area after the pointer M is not an unrecorded area, the data file is read out until the unrecorded area is detected. The directory information of a float data file 2 not to prepare the directory are calculated from the leading address of the unrecorded area and the pointer M, and recorded to the directory recording area and the leading address of the obtained unrecoded area is defined as a next write pointer N. Thus, since the contents of the float directory data are analyzed, the data file 2 interrupted recording can be used.
COPYRIGHT: (C)1991,JPO&Japio
JP1331318A 1989-12-22 1989-12-22 Information recording and reproducing system Pending JPH03192436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1331318A JPH03192436A (en) 1989-12-22 1989-12-22 Information recording and reproducing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1331318A JPH03192436A (en) 1989-12-22 1989-12-22 Information recording and reproducing system

Publications (1)

Publication Number Publication Date
JPH03192436A true JPH03192436A (en) 1991-08-22

Family

ID=18242347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1331318A Pending JPH03192436A (en) 1989-12-22 1989-12-22 Information recording and reproducing system

Country Status (1)

Country Link
JP (1) JPH03192436A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06250909A (en) * 1993-03-01 1994-09-09 Canon Inc File management method
JPH06282702A (en) * 1993-03-24 1994-10-07 Dainippon Printing Co Ltd Information recording medium with built-in cpu
JPH08185675A (en) * 1994-12-29 1996-07-16 Hitachi Maxell Ltd Rewritable optical recording medium and information management method
JP2000306333A (en) * 2000-01-01 2000-11-02 Pioneer Electronic Corp Apparatus and method for recording and reproduction
JP2004047111A (en) * 2003-10-31 2004-02-12 Pioneer Electronic Corp Device and method for recording and reproduction
JP2010211914A (en) * 2003-03-03 2010-09-24 Panasonic Corp Write-once information recording medium, information recording method, information reproduction method, information recording device, and information reproduction device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06250909A (en) * 1993-03-01 1994-09-09 Canon Inc File management method
JPH06282702A (en) * 1993-03-24 1994-10-07 Dainippon Printing Co Ltd Information recording medium with built-in cpu
JPH08185675A (en) * 1994-12-29 1996-07-16 Hitachi Maxell Ltd Rewritable optical recording medium and information management method
JP2000306333A (en) * 2000-01-01 2000-11-02 Pioneer Electronic Corp Apparatus and method for recording and reproduction
JP2010211914A (en) * 2003-03-03 2010-09-24 Panasonic Corp Write-once information recording medium, information recording method, information reproduction method, information recording device, and information reproduction device
JP2004047111A (en) * 2003-10-31 2004-02-12 Pioneer Electronic Corp Device and method for recording and reproduction

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