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Patent Searching and Data


Title:
RECORDING DRIVE INFORMATION ON RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2000/054261
Kind Code:
A2
Abstract:
An information recording medium includes a data recording area for recording data; a first drive information area for recording first drive information; and a second drive information area for recording second drive information. The first drive information and the second drive information each include a plurality of recording and reproduction conditions, and the plurality of recording and reproduction conditions each define an operation condition of an information recording and reproduction apparatus, which can have the information recording medium mounted thereon, for recording and reproducing the data. The plurality of recording and reproduction conditions are arranged in the order of time at which the plurality of recording and reproduction conditions are recorded.

Inventors:
FUKUSHIMA TOSHIYUKI
ITO MOTOSHI
SASAKI SHINJI
Application Number:
PCT/JP2000/000636
Publication Date:
September 14, 2000
Filing Date:
February 04, 2000
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
International Classes:
G11B7/007; G11B19/04; G11B19/12; G11B20/12; G11B20/18; G11B27/32; G11B27/36; G11B7/00; G11B7/0045; G11B7/005; G11B7/24038; (IPC1-7): G11B7/00; G11B19/02; G11B20/10
Foreign References:
EP0749114A21996-12-18
EP0798711A21997-10-01
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 11, 29 November 1996 (1996-11-29) & JP 08 180488 A (SHARP CORP), 12 July 1996 (1996-07-12)
PATENT ABSTRACTS OF JAPAN vol. 011, no. 162 (P-579), 26 May 1987 (1987-05-26) & JP 61 294649 A (CANON INC), 25 December 1986 (1986-12-25)
Attorney, Agent or Firm:
Yamamoto, Shusaku (15th floor 2-27 Shiromi 1-chome Chuo-ku, Osaka-shi Osaka, JP)
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Claims:
CLAIMS
1. An information recording medium, comprising: a data recording area for recording data; a first drive information area for recording first drive information; and a second drive information area for recording second drive information, wherein: the first drive information and the second drive information each include a plurality of recording and reproduction conditions, and the plurality of recording and reproduction conditions are arranged in the order of time at which the plurality of recording and reproduction conditions are recorded.
2. An information recording medium according to claim 1, wherein the plurality of recording and reproduction conditions each define an operation condition of an information recording and reproduction apparatus, which can have the information recording medium mounted thereon, for recording and reproducing the data.
3. An information recording medium according to claim 1, wherein the first drive information and the second drive information are updated so as to have identical contents with each other.
4. An information recording medium according to claim 1, wherein the first drive information area and the second drive information area are each formed of N ECC blocks for calculating an error correction code, the N ECC blocks each include a plurality of sectors, the plurality of recording and reproduction conditions are each recorded in a corresponding sector among the plurality of sectors, and N is an integer of 1 or greater.
5. An information recording medium according to claim 4, wherein the first drive information area and the second drive information area are each formed of a single ECC block, the single ECC block includes 16 sectors, and 16 recording and reproduction conditions are each recorded in a corresponding sector among the 16 sectors.
6. An information recording and reproduction method for an information recording medium including a data recording area for recording data, a first drive information area for recording first drive information, and a second drive information area for recording second drive information, wherein: the first drive information and the second drive information each include a plurality of recording and reproduction conditions, the method comprising the steps of: (a) determining whether or not the first drive information can be read from the first drive information area; (b) determining whether or not the plurality of recording and reproduction conditions included in the first drive information include a recording and reproduction condition usable by an information recording and reproduction apparatus having the information recording medium mounted thereon; and (c) when the first drive information can be read and the first drive information does not include the usable recording and reproduction condition, adjusting a new recording and reproduction condition usable by the information recording and reproduction apparatus having the information recording medium mounted thereon, and using the new recording and reproduction condition and the first drive information to update the first drive information and the second drive information.
7. An information recording and reproduction method according to claim 6, wherein the plurality of recording and reproduction conditions each define an operation condition of an information recording and reproduction apparatus, which can have the information recording medium mounted thereon, for recording and reproducing the data.
8. An information recording and reproduction method according to claim 6, further comprising the step of: when the first drive information can be read, using the first drive information to record and reproduce the data.
9. An information recording and reproduction method according to claim 6, wherein the step (c) includes the step of recording the recording and reproduction condition usable by the information recording and reproduction apparatus having the information recording medium mounted thereon, the recording and reproduction condition being recorded in the first drive information as the recording and reproduction condition recorded in the first drive information most recently.
10. An information recording and reproduction method according to claim 6, wherein the first drive information area and the second drive information area each include areas assigned numbers 0 through 15, the first drive information and the second drive information each include 16 recording and reproduction conditions, the 16 recording and reproduction conditions are written in the areas of each of the first drive information area and the second drive information area assigned numbers 0 through 15 in the order from the recording and reproduction condition recorded on the information recording medium most recently to the recording and reproduction condition recorded on the information recording medium least recently, and the step (c) includes the steps of: (c1) writing contents of the recording and reproduction conditions, which are written in the areas of the first drive information area assigned numbers 0 through 14, into the areas of each of the first drive information area and the second drive information area assigned numbers 1 through 15; and (c2) writing a content of the new recording and reproduction condition in the area of each of the first drive information area and the second drive information area assigned number 0.
11. An information recording and reproduction method according to claim 6, further comprising the step of: (d) when the first drive information can be read and the first drive information includes the usable recording and reproduction condition, using the usable recording and reproduction condition and the first drive information to update the first drive information and the second drive information.
12. An information recording and reproduction method according to claim 11, wherein the first drive information area and the second drive information area each include areas assigned numbers 0 through 15, the first drive information and the second drive information each include 16 recording and reproduction conditions, the 16 recording and reproduction conditions are written in the areas of each of the first drive information area and the second drive information area assigned numbers 0 through 15 in the order from the recording and reproduction condition recorded on the information recording medium most recently to the recording and reproduction condition recorded on the information recording medium least recently, the usable recording and reproduction condition is written in an area of the first drive information area assigned number m, and the step (d) includes the steps of: (d1) reading the usable recording and reproduction condition from the area of the first drive information area assigned number m; (d2) writing contents of the recording and reproduction conditions, which are written in the area of the first drive information area assigned numbers 0 through (m1), into the areas of each of the first drive information area and the second drive information area assigned numbers 1 through m; and (d3) writing the content of the read usable recording and reproduction condition in the area of each of the first drive information area and the second drive information area assigned number 0.
13. An information recording and reproduction method according to claim 6, wherein the first drive information area is formed of N ECC blocks for calculating an error correction code, the N ECC blocks each include a plurality of sectors, the plurality of recording and reproduction conditions included in the first drive information are each recorded in a corresponding sector among the plurality of sectors, and N is an integer of 1 or greater.
14. An information recording and reproduction method according to claim 13, wherein the determination on whether or not the first drive information can be read is performed based on whether or not the reproduction of all the N ECC blocks included in the first drive information area has been successful.
15. An information recording and reproduction method according to claim 6, further comprising the steps of: (e) determining whether or not the second drive information can be read from the second drive information area ; (f) determining whether or not the plurality of recording and reproduction conditions included in the second drive information include a recording and reproduction condition usable by the information recording and reproduction apparatus having the information recording medium mounted thereon; and (g) when the first drive information cannot be read, the second drive information can be read, and the second drive information does not include the usable recording and reproduction condition, adjusting a new recording and reproduction condition usable by the information recording and reproduction apparatus having the information recording medium mounted thereon, and using the new recording and reproduction condition and the second drive information to update the first drive information and the second drive information.
16. An information recording and reproduction method according to claim 15, further comprising the step of: when the second drive information can be read, using the second drive information to record and reproduce the data.
17. An information recording and reproduction method according to claim 15, wherein the step (g) includes the step of recording the recording and reproduction condition usable by the information recording and reproduction apparatus having the information recording medium mounted thereon, the recording and reproduction condition being recorded in the second drive information as the recording and reproduction condition recorded in the second drive information most recently.
18. An information recording and reproduction method according to claim 15, wherein the first drive information area and the second drive information area each include areas assigned numbers 0 through 15, the first drive information and the second drive information each include 16 recording and reproduction conditions, the 16 recording and reproduction conditions are written in the areas of each of the first drive information area and the second drive information area assigned numbers 0 through 15 in the order from the recording and reproduction condition recorded on the information recording medium most recently to the recording and reproduction condition recorded on the information recording medium least recently, and the step (g) includes the steps of: (g1) writing contents of the recording and reproduction conditions, which are written in the areas of the second drive information area assigned numbers 0 through 14, into the areas of each of the first drive information area and the second drive information area assigned numbers 1 through 15; and (g2) writing a content of the new recording and reproduction condition in the area of each of the first drive information area and the second drive information area assigned number 0.
19. An information recording and reproduction method according to claim 15, further comprising the step of (h) when the first drive information cannot be read, the second drive information can be read, and the second drive information includes the usable recording and reproduction condition, using the usable recording and reproduction condition and the second drive information to update the first drive information and the second drive information.
20. An information recording and reproduction method according to claim 19, wherein the first drive information area and the second drive information area each include areas assigned numbers 0 through 15, the first drive information and the second drive information each include 16 recording and reproduction conditions, the 16 recording and reproduction conditions are written in the areas of each of the first drive information area and the second drive information area assigned numbers 0 through 15 in the order from the recording and reproduction condition recorded on the information recording medium most recently to the recording and reproduction condition recorded on the information recording medium least recently, the usable recording and reproduction condition is written in the area of the second information area assigned number m, and the step (h) includes the steps of: (h1) reading the usable recording and reproduction condition from the area of the second drive information area assigned number m; (h2) writing contents of the recording and reproduction conditions, which are written in the areas of the second drive information area assigned numbers 0 through (m1), into the areas of each of the first drive information area and the second drive information area assigned numbers 1 through m; and (h3) writing a content of the read usable recording and reproduction condition in the area of each of the first drive information area and the second drive information area assigned number 0.
21. An information recording and reproduction method according to claim 15, wherein the second drive information area is formed of N ECC blocks for calculating an error correction code, the N ECC blocks each include a plurality of sectors, the plurality of recording and reproduction conditions included in the second drive information are each recorded in a corresponding sector among the plurality of sectors, and N is an integer of 1 or greater.
22. An information recording and reproduction method according to claim 21, wherein the determination on whether or not the second drive information can be read is performed based on whether or not the reproduction of all the N ECC blocks included in the second drive information area has been successful.
23. An information recording and reproduction method according to claim 15, further comprising the step of: (i) when the first drive information cannot be read and the second drive information cannot be read, adjusting a new recording and reproduction condition usable by the information recording and reproduction apparatus having the information recording medium mounted thereon, and using the new recording and reproduction condition to update the first drive information and the second drive information.
24. An information recording and reproduction method according to claim 23, wherein the first drive information area and the second drive information area each include areas assigned numbers 0 through 15, the first drive information and the second drive information each include 16 recording and reproduction conditions, the 16 recording and reproduction conditions are written in the areas of each of the first drive information area and the second drive information area assigned numbers 0 through 15 in the order from the recording and reproduction condition recorded on the information recording medium most recently to the recording and reproduction condition recorded on the information recording medium least recently, and the step (i) includes the steps of: (i1) writing a content of the new recording and reproduction condition in the area of each of the first drive information area and the second drive information area assigned number 0; and (i2) filling the contents of the recording and reproduction conditions, which are written in the areas of each of the first drive information area and the second drive information area assigned numbers 1 through 15, with"00"h.
25. An information recording and reproduction apparatus for an information recording medium including a data recording area for recording data, a first drive information area for recording first drive information, and a second drive information area for recording second drive information, wherein: the first drive information and the second drive information each include a plurality of recording and reproduction conditions, the apparatus comprising: a drive information read section; an adjusting processing section; and a drive information update section, wherein: the drive information read section determines whether or not the first drive information can be read from the first drive information area; the adjusting processing section determines whether or not the plurality of recording and reproduction conditions included in the first drive information include a recording and reproduction condition usable by the information recording and reproduction apparatus; and when the first drive information can be read and the first drive information does not include the usable recording and reproduction condition, the adjusting processing section adjusts a new recording and reproduction condition usable by the information recording and reproduction apparatus, and the drive information update section uses the new recording and reproduction condition and the first drive information to update the first drive information and the second drive information.
26. An information recording and reproduction apparatus according to claim 25, wherein the plurality of recording and reproduction conditions each define an operation condition of an information recording and reproduction apparatus, which can have the information recording medium mounted thereon, for recording and reproducing the data.
27. An information recording and reproduction apparatus according to claim 25, further comprising a control section for, when the first drive information can be read, using the first drive information to record and reproduce the data.
28. An information recording and reproduction apparatus according to claim 25, wherein the drive information update section records the recording and reproduction condition usable by the information recording and reproduction apparatus in the first drive information as the recording and reproduction condition recorded in the first drive information most recently.
29. An information recording and reproduction apparatus according to claim 25, wherein: the first drive information area and the second drive information area each include areas assigned numbers 0 through 15, the first drive information and the second drive information each include 16 recording and reproduction conditions, the 16 recording and reproduction conditions are written in the areas of each of the first drive information area and the second drive information area assigned numbers 0 through 15 in the order from the recording and reproduction condition recorded on the information recording medium most recently to the recording and reproduction condition recorded on the information recording medium least recently, and the drive information update section writes contents of the recording and reproduction conditions, which are written in the areas of the first drive information area assigned numbers 0 through 14, into the areas of each of the first drive information area and the second drive information area assigned numbers 1 through 15, and writes a content of the new recording and reproduction condition in the area of each of the first drive information area and the second drive information area assigned number 0.
30. An information recording and reproduction apparatus according to claim 25, wherein when the first drive information can be read and the first drive information includes the usable recording and reproduction condition, the drive information update section uses the usable recording and reproduction condition and the first drive information to update the first drive information and the second drive information.
31. An information recording and reproduction apparatus according to claim 25, wherein: the first drive information area and the second drive information area each include areas assigned numbers 0 through 15, the first drive information and the second drive information each include 16 recording and reproduction conditions, the 16 recording and reproduction conditions are written in the areas of each of the first drive information area and the second drive information area assigned numbers 0 through 15 in the order from the recording and reproduction condition recorded on the information recording medium most recently to the recording and reproduction condition recorded on the information recording medium least recently, the usable recording and reproduction condition is written in an area of the first drive information area assigned number m, and the drive information update section reads the usable recording and reproduction condition from the area of the first drive information area assigned m, writes contents of the recording and reproduction conditions, which are written in the areas of the first drive information area assigned numbers 0 through (m1), into the areas of each of the first drive information area and the second drive information area assigned numbers 1 through m, and writes the content of the read usable recording and reproduction condition in the areas of each of the first drive information area and the second drive information area assigned number 0.
32. An information recording and reproduction apparatus according to claim 25, wherein the first drive information area is formed of N ECC blocks for calculating an error correction code, the N ECC blocks each include a plurality of sectors, the plurality of recording and reproduction conditions included in the first drive information are each recorded in a corresponding sector among the plurality of sectors, and N is an integer of 1 or greater.
33. An information recording and reproduction apparatus according to claim 32, wherein the determination on whether or not the first drive information can be read is performed based on whether or not the reproduction of all the N ECC blocks included in the first drive information area has been successful.
34. An information recording and reproduction apparatus according to claim 25, wherein: the drive information read section determines whether or not the second drive information can be read from the second drive information area, the adjusting processing section determines whether or not the plurality of recording and reproduction conditions included in the second drive information include a recording and reproduction condition usable by the information recording and reproduction apparatus, and when the first drive information cannot be read, the second drive information can be read, and the second drive information does not include the usable recording and reproduction condition, the adjusting processing section adjusts a new recording and reproduction condition usable by the information recording and reproduction apparatus, and the drive information update section uses the new recording and reproduction condition and the second drive information to update the first drive information and the second drive information.
35. An information recording and reproduction apparatus according to claim 34, further comprising a control section for, when the second drive information can be read, using the second drive information to record and reproduce the data.
36. An information recording and reproduction apparatus according to claim 34, wherein the drive information update section records the recording and reproduction condition usable by the information recording and reproduction apparatus in the second drive information as the recording and reproduction condition recorded in the second drive information most recently.
37. An information recording and reproduction apparatus according to claim 34, wherein: the first drive information area and the second drive information area each include areas assigned numbers 0 through 15, the first drive information and the second drive information each include 16 recording and reproduction conditions, the 16 recording and reproduction conditions are written in the areas of each of the first drive information area and the second drive information area assigned numbers 0 through 15 in the order from the recording and reproduction condition recorded on the information recording medium most recently to the recording and reproduction condition recorded on the information recording medium least recently, and the drive information update section writes contents of the recording and reproduction conditions, which are written in the areas of the second drive information area assigned numbers 0 through 14, into the areas of each of the first drive information area and the second drive information area assigned numbers 1 through 15, and writes a content of the new recording and reproduction condition in the area of each of the first drive information area and the second drive information area assigned number 0.
38. An information recording and reproduction apparatus according to claim 34, wherein when the first drive information cannot be read, the second drive information can be read, and the second drive information includes the usable recording and reproduction condition, the drive update section uses the usable recording and reproduction condition and the second drive information to update the first drive information and the second drive information.
39. An information recording and reproduction apparatus according to claim 38, wherein: the first drive information area and the second drive information area each include areas assigned numbers 0 through 15, the first drive information and the second drive information each include 16 recording and reproduction conditions, the 16 recording and reproduction conditions are written in the areas of each of the first drive information area and the second drive information area assigned numbers 0 through 15 in the order from the recording and reproduction condition recorded on the information recording medium most recently to the recording and reproduction condition recorded on the information recording medium least recently, the usable recording and reproduction condition is written in an area of the second drive information area assigned number m, and the drive information update section reads the usable recording and reproduction condition from the area of the second drive information area assigned m, writes contents of the recording and reproduction conditions, which are written in the areas of the second drive information area assigned numbers 0 through (m1), into the areas of each of the first drive information area and the second drive information area assigned numbers 1 through m, and writes the content of the read usable recording and reproduction condition in the areas of each of the first drive information area and the second drive information area assigned number 0.
40. An information recording and reproduction apparatus according to claim 34, wherein the second drive information area is formed of N ECC blocks for calculating an error correction code, the N ECC blocks each include a plurality of sectors, the plurality of recording and reproduction conditions included in the second drive information are each recorded in a corresponding sector among the plurality of sectors, and N is an integer of 1 or greater.
41. An information recording and reproduction apparatus according to claim 40, wherein the determination on whether or not the second drive information can be read is performed based on whether or not the reproduction of all the N ECC blocks included in the second drive information area has been successful.
42. An information recording and reproduction apparatus according to claim 34, when the first drive information cannot be read and the second drive information cannot be read, the adjusting processing section adjusts a new recording and reproduction condition usable by the information recording and reproduction apparatus, and the drive information update section uses the new recording and reproduction condition to update the first drive information and the second drive information.
43. An information recording and reproduction apparatus according to claim 42, wherein: the first drive information area and the second drive information area each include areas assigned numbers 0 through 15, the first drive information and the second drive information each include 16 recording and reproduction conditions, the 16 recording and reproduction conditions are written in the areas of each of the first drive information area and the second drive information area assigned numbers 0 through 15 in the order from the recording and reproduction condition recorded on the information recording medium most recently to the recording and reproduction condition recorded on the information recording medium least recently, and, the drive information update section writes a content of the new recording and reproduction condition in the area of each of the first drive information area and the second drive information area assigned number 0, and fills the contents of the recording and reproduction conditions, which are written in the areas of each of the first drive information area and the second drive information area assigned numbers 1 through 15, with"00"h.
Description:
INTERNATIONALSEARCH REPORT ß Intern. lonalApplkatlonNo PCT/JP00/00636 C.(Continuation)DOCUMENTSCONSIDEREDTOBERELEVANT CategoryCitationofdocument,with indication,whereappropriate,oftherelevantpassagesRelevanttoc laimNo. APATENTABSTRACTSOFJAPAN1-3,6-43 vol.011,no.162(P-579), 26May1987(1987-05-26) &JP61294649A(CANONINC), 25December1986(1986-12-25) abstract YEP0798711A(TOKYOSHIBAURAELECTRIC4,5 CO)1October1997(1997-10-01) page15,line54-page18,line51 ; figures14-40 4 International applicationNo. INTERNATIONALSEARCHREPORTPCT/JP 00/00636 Bon IObservationswherecertainclaimswerefoundunsearchable(Continu ationofitem1offirstsheet) This International Search Report has not been established in respectofcertain claims under Article 17 (2) (a) for the following reasons : 1.ClaimsNos.: becausetheyrelatetosubjectmatternotrequiredtobesearchedbythi sAuthority,namely: 2.CClaimsNos.: becausetheyrelatetopartsoftheInternationalApplicationthatdon otcomplywiththeprescribedrequirementstosuch anextentthatnomeaningfuiInternationalSearchcanbecarriedout,s pecifically: 3.ClaimsNos.: becausetheyaredependentclaimsandarenotdraftedinaccordancewit hthesecondandthirdsentencesofRule6.4(a). Box11Observationswhereunityofinventionislacking(Continuation ofitem2offirstsheet) ThisInternationalSearchingAuthorityfoundmultipleinventionsin thisinternational application,asfollows: seeadditionalsheet 1.Asallrequiredadditionalsearchfeesweretimelypaidbytheapplic ant,thisInternational SearchReportcoversall FXIsearchable claims. 2.As all searchabie claims couldbesearchedwithouteffortjustifyinganadditionalfee,thisAu thoritydidnotinvitepayment ofanyadditionalfee. 3.Asonlysomeoftherequiredadditionalsearchfeesweretimelypaidb ytheapplicant,thisIntemationalSearchReport F covers onlythoseclaimsforwhichfeeswerepaid,specificallydaimsNos.: 4.No required additiona ! searchfeesweretimelypaidbytheapplicant.Consequently,thisInte mational SearchReportis restrictedtotheinventionfirstmentionedintheclaims;itiscovere dbyclaims: RemarkonProtestThe additionalsearchfeeswereaccompaniedbytheapplicant'sprotest. u FXNoprotestaccompaniedthepaymentofadditionalsearchfees. m FURTHERINFORMATIONCONTINUEFROMPCT/ISA/210 ThisInternationalSearchingAuthorityfoundmultiple(groupsof) inventionsinthisinternationalapplication,asfollows: 1.Claims:1-3,6-43 "Identicalfirstandseconddriveinformations" 2.Claims:4,5 "DriveinformationareaECCformat" INTERNATIONALSEARCHREPORTIntemi.., jnal Application No Informationonpatentfamilymembers PCT/JP00/00636 PatentdocumentPublicationPatentfamilyPublication citedinsearchreportdatemember(s)date EP0749114A18-12-1996JP8339583A24-12-1996 JP9054954A25-02-1997 JP9054955A25-02-1997 US5793723A11-08-1998 JP08180488A12-07-1996NONE JP61294649A25-12-1986JP2066091C24-06-1996 JP7101511801-11-1995 US5410527A25-04-1995 EP0798711A01-10-1997JP9259576A03-10-1997 CN1164732A12-11-1997 US5878020A02-03-1999



 
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