Source: http://www.google.de/patents/US7701809
Timestamp: 2013-12-12 12:47:22
Document Index: 303394115

Matched Legal Cases: ['Application No. 60', 'Application No. 10', 'art 11', 'art 11', 'Application No. 200710138431', 'Application No. 2006136920', 'Application No. 04808643', 'Application No. 07111355', 'Application No. 2007', 'Application No. 2007', 'Application No. 2007', 'application No. 2006136909', 'Application No. 2006136909', 'Application No. 2004317315', 'Application No. 2006136920', 'Application No. 07110264', 'Application No. 07150328', 'Application No. 07120363']

Patent US7701809 - Computer-readable recording medium with physical access control (PAC ... - Google PatenteSuche Bilder Maps Play YouTube News Gmail Drive Mehr » Erweiterte Patentsuche | Anmelden Erweiterte Patentsuche PatenteA method for recording information on a computer-readable medium and a computer-readable recording medium having a first area for storing a plurality of access control data in a recording unit, each of the access control data having a data structure to control writing to and/or reading from the computer-readable...http://www.google.de/patents/US7701809?utm_source=gb-gplus-sharePatent US7701809 - Computer-readable recording medium with physical access control (PAC) information thereon and apparatus and methods for forming, recording, and reproducing the computer-readable recording medium Ver�ffentlichungsnummerUS7701809 B2PublikationstypErteilung AnmeldenummerUS 11/907,660 Ver�ffentlichungsdatum20. Apr. 2010Eingetragen16. Okt. 2007 Priorit�tsdatum19. M�rz 2004Geb�hrenstatusBezahltAuch ver�ffentlicht unterCA2558895A1, CA2558895C, CA2559575A1, CA2559575C, EP1726015A1, EP1726015B1, EP1730731A2, EP1730731B1, US7680022, US7760613, US7782742, US20050207319, US20050207320, US20070291627, US20080049588, WO2005089072A2, WO2005089072A3, WO2005091292A1 Ver�ffentlichungsnummer11907660, 907660, US 7701809 B2, US 7701809B2, US-B2-7701809, US7701809 B2, US7701809B2 ErfinderYong Cheol ParkUrspr�nglich Bevollm�chtigterLg Electronics, Inc.Zitat exportierenBiBTeX, EndNote, RefManPatentzitate (105), Nichtpatentzitate (22), Referenziert von (2), Klassifizierungen (44), Juristische Ereignisse (1) Externe Links: USPTO, USPTO-Zuordnung, EspacenetComputer-readable recording medium with physical access control (PAC) information thereon and apparatus and methods for forming, recording, and reproducing the computer-readable recording mediumUS 7701809 B2 Zusammenfassung A method for recording information on a computer-readable medium and a computer-readable recording medium having a first area for storing a plurality of access control data in a recording unit, each of the access control data having a data structure to control writing to and/or reading from the computer-readable recording medium and a second area for storing status information indicating status of the access control data, per the recording unit.
Bilder(17) Anspr�che(45)
a first control data area for storing a plurality of access control data, each of the access control data having an ID of the corresponding access control data, controlling access to the computer-readable recording medium and enlarging a compatibility of the computer-readable recording medium;
a second control data area for storing a copy of the access control data; and
a management area for storing status information indicating status of the access control data in the first control data area and the status of the copy of the access control data in the second control data area, wherein the status information indicates whether the access control data and the copy of the access control data are respectively valid or not.
2. The computer-readable recording medium of claim 1, wherein the status information indicates allocation status of the access control data and the copy of the access control data.
3. The computer-readable recording medium of claim 1, wherein the status information is represented with two bits for one access control data.
4. The computer-readable recording medium of claim 3, wherein the two bit 00 indicates that the access control data is not recorded.
5. The computer-readable recording medium of claim 3, wherein the two bit 10 indicates that the access control data is invalid.
6. The computer-readable recording medium of claim 3, wherein the two bit 11 indicates that the access control data is valid.
7. The computer-readable recording medium of claim 1, wherein the management area is physically apart from the first and second control data areas.
8. The computer-readable recording medium of claim 7, wherein the management area is in Disc Definition Structure (DDS) of Defect Management Area (DMA).
9. The computer-readable recording medium of claim 7, wherein the management area is in Temporary Disc Definition Structure (TDDS) of Temporary Disc Definition Structure (TDMA).
10. The computer-readable recording medium of claim 1, wherein the status information is written as pointers, then can be obtained without needing to scan all of the access control data.
11. The computer-readable recording medium of claim 1, wherein the first and second control data areas are located in an inner circumference zone of the computer-readable recording medium.
12. The computer-readable recording medium of claim 1, wherein each of the access control data including a header, and
a specific information area, including information specific to the access control data.
13. The computer-readable recording medium of claim 12, wherein the specific information area includes rules for enabling desired applications or functions.
14. The computer-readable recording medium of claim 1, wherein the access control data includes a rule for controlling the access when the corresponding access control data is not recognized by an apparatus attempting to record/reproduce data on/from the computer-readable recording medium.
15. The computer-readable recording medium of claim 14, wherein the rule controls the access when a version of the access control data is not recognized by the apparatus.
16. A method of recording on a computer-readable recording medium, comprising:
recording a plurality of access control data in a first control data area and a copy of the access control data in a second control data area, each of the access control data including an ID of the corresponding access control data, controlling access to the computer-readable recording medium and enlarging a compatibility of the computer-readable recording medium; and
recording status information for indicating status of the access control data of the first control data area and status of the copy of the access control data of the second control data area in a management area, wherein the status information indicates whether the access control data and the copy of the access control data are respectively valid or not.
17. The method of claim 16, wherein the status information indicates whether each of the access control data and the copy of the access control data is defective or not.
18. The method of claim 16, wherein the status information indicates allocation status of the access control data and the copy of the access control data.
19. The method of claim 16, wherein the status information is represented with two bits for one access control data.
recording/updating new access control data in a next normal area following a defective area based on the status information.
21. The method of claim 16, wherein the status information is written as pointers, then can be obtained without needing to scan all the recording units.
22. The method of claim 16, wherein the specific information area includes rules for enabling desired applications or functions.
23. The method of claim 16, wherein the access control data includes a rule for controlling the access when the corresponding access control data is not recognized by an apparatus attempting to record/reproduce data on/from the computer-readable recording medium.
24. The method of claim 23, wherein the rule controls the access when a version of the access control data is not recognized by the apparatus.
25. A method of reproducing from a computer-readable recording medium, comprising:
reading status information from a management area of the computer-readable recording medium, the status information indicating status of a plurality of access control data in a first control data area and status of copy of the access control data in a second control data area, wherein the status information indicates whether the access control data and the copy of the access control data are respectively valid or not; and
reproducing at least one of the access control data and the copy of the access control data from the first and second control data areas based on the status information, each of the access control data including an ID of the corresponding access control data, controlling access to the computer-readable recording medium and enlarging a compatibility of the computer-readable recording medium.
26. The method of claim 25, wherein the status information indicates allocation status of the access control data and the copy of the access control data.
27. The method of claim 25, wherein the status information is represented with two bits for one access control data.
recording/updating new access control data in a next normal area following a defective area within the first control data area based on the status information.
29. The method of claim 25, wherein the status information is written as pointers, then can be obtained without needing to scan all of the access control data.
30. The method of claim 25, wherein the access control data includes rules for enabling desired applications or functions.
31. The method of claim 25, wherein the access control data includes a rule for controlling the access when the corresponding access control data is not recognized by an apparatus attempting to record/reproduce data on/from the computer-readable recording medium.
32. The method of claim 31, wherein the rule controls the access when a version of the access control data is not recognized by the apparatus.
33. An apparatus for recording to and/or reproducing from a computer-readable recording medium, comprising:
an optical device configured to record data on the computer-readable recording medium and/or reproduce data from the computer-readable recording medium; and
a control unit configured to control the optical device to read status information indicating status of a plurality of access control data in a first control area and status of copy of the access control data in a second control data from a management area of the computer-readable recording area, and to reproduce at least one of the access control data and the copy of the access control data from the first and second control data areas based on the status information, the access control data including an ID of the corresponding access control data, controlling a reproduction compatibility of the computer-readable recording medium and enlarging a compatibility of the computer-readable recording medium, wherein the status information indicates whether the access control data and the copy of the access control data are respectively valid or not.
34. The apparatus of claim 33, wherein the status information indicates allocation status of the access control data and the copy of the access control data.
35. The apparatus of claim 33, wherein the status information is represented with two bits for one access control data.
36. The apparatus of claim 35, wherein the control unit is configured to control the optical device to record/update new access control data in a next normal area following a defective area within the first control data area based on the status information.
37. The apparatus of claim 33, wherein the status information is written as pointers, then can be obtained without needing to scan all of the access control data.
38. The apparatus of claim 33, wherein the specific information area includes rules for enabling desired applications or functions.
39. The apparatus of claim 33, wherein the control unit is configured to control the access based on a rule in the access control data when the control unit cannot recognize the corresponding access control data.
40. The apparatus of claim 39, wherein the control unit is configured to control the access based on the rule when the control unit cannot recognize a version of the access control data.
41. The apparatus of claim 33, the apparatus further comprising a host device giving command of writing and/or reading to the control unit.
42. An apparatus for recording/reproducing data on/from a recording medium, comprising:
a controller configured to control the pickup to record a plurality of access control data in a first control data area and a copy of the access control data in a second control data area, each of the access control data including an ID of the corresponding access control data, controlling access to the recording medium and enlarging a compatibility of the recording medium, and to record status information for indicating status of the access control data of the first control data area and status of the copy of the access control data of the second control data area in a management area, wherein the status information indicates whether the access control data and the copy of the access control data are respectively valid or not.
43. The apparatus of claim 42, wherein the access control data includes a rule for controlling the access when the controller cannot recognize a version of the corresponding access control data.
44. The apparatus of claim 42, wherein the status information indicates at least whether the access control data and the copy of the access control data are defective or not.
45. The apparatus of claim 42, wherein the controller is configured to control the pickup to record/update new access control data in a next normal area following a defective area within the first control data area based on the status information.
DOMESTIC PRIORITY The present invention is a divisional application of U.S. Ser. No. 11/061,667, filed Feb. 22, 2005 which claims priority of U.S. Provisional Application No. 60/554,356 filed on Mar. 19, 2004, the entire contents of which are incorporated by reference herein.
FOREIGN PRIORITY The present invention claims priority under 35 U.S.C. 119 on Korean Application No. 10-2004-0039142 filed on May 31, 2004, the entire contents of which are incorporated by reference herein.
The present invention relates to PAC (Physical Access Control), PAC zones, PAC clusters, media containing PAC zones and/or clusters (for example, high density optical discs, such as Blu-ray Disc) and apparatus and methods for recording and/or reproducing data to and/or from the media.
SUMMARY OF THE INVENTION A computer-readable recording medium having a first area for storing a plurality of access control data in a recording unit, each of the access control data having a data structure to control writing to and/or reading from the computer-readable recording medium and a second area for storing status information indicating status of the access control data, per the recording unit.
A method of recording on a computer-readable recording medium, including recording an access control data in a usable recording unit of a control data area, the access control data having a data structure to control writing to and/or reading from the computer-readable recording medium, wherein the usable recording unit is found based on a status information for the control data area.
A method of reproducing from a computer-readable recording medium that includes reading status information for a plurality of access control data, the access control data having a data structure to control writing to and/or reading from the computer-readable recording medium, the status information indicating the status of the access control data per recoding unit; and reproducing from the computer-readable recording medium according to identified at least one valid access control data.
An apparatus for recording to and/or reproducing from a computer-readable recording medium, comprising an optical device to record data on the computer-readable recording medium and/or reproduce data from the computer-readable recording medium; and a control unit for controlling the optical device to access based on at least one valid access control data, the access control data having a data structure to control writing to and/or reading from the computer-readable recording medium, the status information indicating the status of the access control data per recording unit.
It is to be understood that both the foregoing general description and the following detailed description of embodiments of the present invention are examples and explanatory and are intended to provide further explanation of the invention as claimed.
FIG. 1 illustrates PAC zones on a high density optical disc in accordance with an example embodiment of the present invention;
FIG. 3 illustrates a structure of a PAC recorded on a high density optical disc in accordance with an example embodiment of the present invention;
FIG. 4 illustrates a structure of a PAC on a high density optical disc in accordance with an example embodiment of the present invention;
FIG. 5 illustrates a configuration of an �Unknown PAC Rules� field in accordance with an example embodiment of the present invention;
FIG. 8 illustrates segment zones managed by a plurality of PAC zones on a high density optical disc in accordance with an example embodiment of the present invention;
FIG. 9 illustrates a Disc Definition Structure (DDS) on a high density optical disc in accordance with an example embodiment of the present invention;
FIG. 10 illustrates a DDS representing a PAC status on a high density optical disc in accordance with an example embodiment of the present invention;
FIGS. 11 to 13 illustrate diagrams showing several alternatives of a DDS, each representing a PAC status on a high density optical disc in accordance with an example embodiment of the present invention;
FIG. 14 illustrates additional alternatives of a DDS on a high density optical disc in accordance with example embodiments of the present invention;
FIG. 15 illustrates other alternatives of a DDS representing a PAC status on a high density optical disc in accordance with example embodiments of the present invention;
FIG. 16 illustrates a DDS representing a PAC status on a high density optical disc in accordance with another example embodiment of the present invention;
FIG. 17 illustrates a block diagram of an optical recording/reproducing apparatus in accordance with an example embodiment of the present invention; and
FIG. 18 illustrates a flow chart showing a method for recording to and/or reproducing from a high density optical disc having PAC recorded thereon in accordance with an example embodiment of the present invention.
DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS OF THE INVENTION Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
FIG. 1 illustrates a PAC zones on a high density optical disc in accordance with an example embodiment of the present invention.
Referring to FIG. 1, the high density optical disc may be partitioned, from an inner circumference to an outer circumference, into a lead-in zone, a data zone, and a lead-out zone. The lead-in zone may further be partitioned into an INFO2 zone and an INFO1 zone for recording various kinds of information thereon. The INFO2 zone and/or the INFO1 zone may include PAC (Physical Access Control) zones.
For convenience, a PAC zone assigned to the INFO2 zone is labeled as a PACII zone and the PAC zone assigned to the INFO1 zone is labeled a PACI zone. One of the PACII zone and the PACI zone may have an original PAC recorded thereon and the other may be a back up zone for recording a copy of the original PAC. If a writing direction is from the inner circumference to the outer circumference of the disc, it may be advantageous that the original PAC is recorded on the PACII zone and the backup PAC is recorded on the PACI zone.
For a read only high density optical disc (BD-ROM), a PAC may be a primary PAC and the INFO2 zone may have 256 clusters including a PACII zone, a CD 2 zone, and a BZ 3 zone, each with 32 clusters, and the INFO1 zone 256 clusters including a CD1 zone, and/or a BZ1-PACI zone, each with 32 clusters.
A valid PAC may represent a zone having various kinds of PAC information described above, and including copies, may include a maximum (for example, 16) valid PACs, each with a common size, which can be allocated to one PAC zone.
A valid PAC may have a predetermined PAC_ID (for an example, PAC_ID=54 53 54 00) according to a drive version of the optical disc having the PAC recorded thereon, and a PAC zone not used may be a spare PAC zone. The spare PAC zone may be filled with 00 bits (PAC_ID=00 00 00 00) indicating that the zone is not used or may be left as a �not used area�, depending on a setting of the optical disc drive.
Because only one write is physically possible in the case of a write-once high density optical disc BD-R, in an example, nothing is written in the spare area until writing is completed or until the disc is closed (no additional writing is desired by the user).
Because physical repetitive overwrite is possible in the case of a re-writable high density optical disc BD-RE, in an example, even if the valid PACs and Copy PACs thereof are written in the PAC zone of 32 clusters, a number of writing times in acceptable.
If a defect is present in one PAC zone in the PAC to be written therein, the PAC may be written in an area next to the defective area. A defect may be a result of damage to, or contamination of a disc surface, and when the defect occurs in the area the PAC is to be written, the PAC information may be written in an area next to the defective area.
The plurality of valid PACs which can be allocated to the PAC zone may have various kinds of information regarding controllable areas of the disc, which are described with reference to FIG. 8.
FIG. 8 illustrates segment zones managed by a plurality of PAC zones on a high density optical disc in accordance with an example embodiment of the present invention.
Referring to FIG. 8, for drives of different versions, controllable segment areas may be designated on the disc by using the plurality of PACs. That is, it is possible to control a segment 0 Seg #0, and segment 1 Seg #1 via PAC #0 on the disc, a segment 0 Seg #0, segment 1 Seg #1, and segment 2 Seg #2 on the disc via PAC #1, and segment 0 Seg #0 on the disc via PAC #2.
In this example, none of the segments areas controllable by respective PACs overlap and the segments areas are reordered in an ascending order starting from segment #0, which indicates that the PACs may be independent from each other.
Moreover, even though one PAC may have a maximum of 32 segment areas, a total number of the segments managed by the plurality of PACs may also not exceed 32, even in an example where the segments are managed by a plurality of PACs.
Finding a position of the valid PAC zone from the PAC zone or quick finding of a position of a next writable PAC zone, while avoiding an area written already to or a defective area from above PAC zone, may affect initialization and/or recording speed of the disc. In particular, many retries may be executed to attempt to read a defective area.
In example embodiments, the present invention provides a method in which various status information on positions of the plurality of valid PACs, a position of the next writable PAC, and/or other relevant information is written, for example, in a data structure, such as a Disc Definition Structure (DDS).
A DDS may be a zone containing information on a first PSN of a defect list, a position of a user data zone, sizes of spare areas, and/or other relevant information, and may be information written in the DMA zone of the disc as information in a Defect Management Structure (DMS) together with a Defect List (DFL).
Referring to FIG. 9, the DDS may include a �DDS identifier� field, a �DDS format� field, a �First PSN of Drive Area (P_DA)� field representing the first physical sector number of a drive area, a �First PSN of Defect List (P_DFL)� field representing the first PSN of the defect list, a �Location of LSN 0 of User Data Area� field representing a position of an LSN (logical sector number) of the user data area, an �Inner Spare Area 0 size (ISA0_size)� field representing a size of an inner spare area 0, an �Outer Spare Area size (OSA_size)� field representing a size of an outer spare area 0, an �Inner Spare Area 1 size (ISA1_size)� field representing a size of an inner spare area 1, a PAC Clusters Defect Status� field representing a defect status of the PAC zone, and/or a �PAC Allocated Space� field representing a designated status of the PAC zone.
Thus, an example DDS may provide various kinds of status information on the PAC, such as a position of defective cluster in the PAC zone and/or a position of clusters having valid PAC allocated thereto by using the �PAC Clusters Defect Status� field and/or the �PAC Allocated Space� field.
A method of representing PAC status information using the �PAC Clusters Defect Status� field and/or the �PAC Allocated Space� field will be described in more detail below.
FIG. 10 illustrates a diagram showing a DDS representing a PAC status on a high density optical disc in accordance with an example embodiment of the present invention.
Referring to FIG. 10, two bytes may be allocated to the �PAC Clusters Defect Status� field of the DDS, for representing a writing failure due to a cluster defect of the PAC zone or a defective cluster area.
As shown, a PDS N (PAC Defect Status) bit in FIG. 10 is a bit for indicating the status of the PAC clusters, wherein a 0 bit may indicate the PAC cluster N is not a defective area and a 1 bit may indicate the PAC cluster N is a defective area.
The PDS 0 bit may indicate a status of the PAC #0 zone, the PDS 1 bit may indicate a status of the PAC #1 zone, and so on, up to PDS 15 bit (for example, for 16) for indicating status of valid PACs, which can be allocated to one PAC zone.
Two bytes may also allocated to the �PAC Allocated Space� field of the DDS zone, for indicating an allocation status of the PAC zone.
The PSB N (PAC Status Bit) in FIG. 10 may be a bit indicating the allocation status of the PAC clusters, wherein a 0 bit may indicate a status in which the PAC cluster N can be newly allocated, for example, the PAC is not used or PAC_ID=00000000 or FFFFFFFF state and a 1 bit may indicate a status in which the PAC cluster N is allocated.
In this example, like the PDS bits, the PSB bits may be allocated from a PSB 0 bit to a PSB 15 bit, such that the PSB 0 bit indicates PAC #0 zone, PSB 1 bit indicates PAC #1 zone, etc.
Various example embodiments in which a status of the PAC zone is represented using a DDS, for example, as described, will be discussed below.
FIGS. 11 to 13 illustrate diagrams showing various example embodiments of a DDS, each representing a PAC status on a high density optical disc in accordance with an example embodiment of the present invention.
Referring to FIG. 11, the PDS 1 bit is 1 on a bitmap of the �PAC Clusters Defect Status� field, which is information on a defective area of the PAC zone in the information contained in the DDS. Accordingly, an optical disc drive may be made aware that the PAC #1 zone is defective based on the information.
Also, each of PSB 0, PSB 1, and PSB 2 bits is also 1 on a bitmap of the �PAC Allocated Space� field indicating an allocation status of the PAC zone, and an optical disc drive may be made aware that the PAC #0, PAC #1, and PAC #2 zones are in allocated states based on the above information. Therefore, the next available PAC zone that is not defective area and not an allocated area, is PAC #3 zone.
Also, referring to FIG. 12, because each of the PDS 0, PDS 1, PDS 4, and PDS 5 bits is 1 on the bitmap of the �PAC Clusters Defect Status� field, an optical disc drive may be made aware that each of the PAC #0, PAC #1, PAC #4, and PAC #5 zones is a defective area, and because each the PSB 0, PSB 1, PSB 2, PSB 3, PSB 4, PSB 5, and PSB 6 bits is 1 on the bitmap of the �PAC Allocated Space� field, an optical disc drive may be made aware that each of the PAC #0, PAC #1, PAC #2, PAC #3, PAC #4, PAC #5, and PAC #6 zones is in an allocated status. Therefore, in the case of FIG. 12, the next available PAC zone is PAC #7.
Also, referring to FIG. 13, because each of the PDS 0, PDS 1, PDS 4, and PDS 5 bits is 1 on the bitmap of the �PAC Clusters Defect Status� field, an optical disc drive may be made aware that each of the PAC #0, PAC #1, PAC #4, and PAC #5 zones is a defective area, and because each of the PSB 0, PSB 1, PSB 2, PSB 4, PSB 5, and PSB 6 bits is 1 on the bitmap of the �PAC Allocated Space� field, an optical disc drive may be made aware that each of the PAC #0, PAC #1, PAC #2, PAC #4, PAC #5, and PAC #6 zones is in an allocated status.
Therefore, in the case of FIG. 13, the next available PAC zone is PAC #3, which may be an area which is presently re-usable, even if the PAC #3 area was used previously.
As set forth above, a copy of information on the PAC II zone of the INFO 2 zone, may be recorded on an area of the PAC I zone of the INFO 1 zone corresponding to an area of the PAC II zone of the INFO 2 zone. If the PAC #1 zone of the PAC II zone is defective, the PAC I zone of the PAC #1 zone may be used (if not defective).
It is also possible that the DDS is made to include, not only the information on the 4 bytes of PAC II zone, but also information on the PAC I zone by allocating additional (for example, 4) bytes to the DDS. In this case, the information written on the PAC I will be free from the defective area of the PAC II zone.
FIG. 14 illustrates a diagram showing another embodiment of a DDS on a high density optical disc in accordance with another example embodiment of the present invention.
Referring to FIG. 14, as described above, the DDS may include a �DDS identifier� field, a �DDS format� field, a �First PSN of Drive Area (P_DA)� field, a �First PSN of Defect List (P_DFL)� field, a �Location of LSN 0 of User Data Area� field, an �Inner Spare Area 0 size (ISA0_size)� field, an �Outer Spare Area size (OSA_size)� field, and an �Inner Spare Area 1 size (ISA1_size)� field, and/or a �PAC Status� field representing a status of the PAC zone.
The �PAC Status� field may have 8 bytes, for representing status of the PACs in the PAC II zone of the INFO 2 zone and the PAC I zone of the INFO 1 zone, which will be described in detail below.
FIG. 15 illustrates a diagram showing another embodiment of a DDS representing a PAC status on a high density optical disc in accordance with another example embodiment of the present invention.
Referring to FIG. 15, the �PAC Status� field of the DDS may use 64 bits (8 bytes) in total for representing status of PACs in PAC II zone of the INFO 2 zone and PAC I zone of the INFO 1 zone.
In this example, information in one PAC may be represented with two bits, for example, by allocating bits b1 and b0 to indicate a status of the PAC #0 of the PAC I zone, and bits b2 and b3 to indicate a status of the PAC #2 of the PAC I zone, and every subsequent two bits indicating a PAC status of the PAC zone in succession. Accordingly, bits b31 and b30 may represent the PAC #15 status of the PAC I zone, bits b33 and b32 may indicate the PAC #0 status of the PAC 2 zone, and bits b63 and b62 may indicate the PAC #15 status of the PAC 2 zone.
The PAC status of the PAC zone represented with two bits may indicate that the PAC is unrecorded when the two bits are 00, the PAC is written in 00 00 00 00 bits to indicate that the PAC is writable or in FF FF FF FF bits to indicate that the PAC is re-usable even if the PAC has been used before when the two bits are 01, the PAC is a defective area FF FF FF FE when the two bits are 10, and the PAC is a valid PAC (for example, Valid PAC =54 53 54 00) when the two bits are 11.
Therefore, the next writable PAC zone is an area with bits 00 or bits 01, and a position of the valid PAC will be an area with bits 11.
By using the above method, the optical disc drive may obtain information on a position of the valid PAC, a position of a defective area, a next writable position, and/or other relevant information on the PACs written in the PAC 2 zone and the PAC 1 zone from the 8 bytes of �PAC Status� field inserted in the DDS zone.
FIG. 16 illustrates a DDS representing a PAC status on a high density optical disc in accordance with another example embodiment of the present invention.
If a bitmap of the �PAC Status� field of the DDS is the same as illustrated in FIG. 16, since the b33 and b32 bits indicating the PAC #0 in the PAC II zone is 11, it is known that the PAC #0 in the PAC II zone is a valid PAC.
Also, since the b35 and b34 bits indicating the PAC #1 in the PAC II zone are 10, it is known that the PAC #1 in the PAC II zone is a defective area, and since the b37 and b36 bits indicating the PAC #2 in the PAC II zone are 01, it is known that the PAC #2 in the PAC II zone is an area used previously, or if 00, usable presently.
Accordingly, if it is intended to find the position of the valid PAC, the optical disc drive may find the PAC with the bits 11 of the �PAC Status� field information of the DDS indicates, and when it is intended to find the position of a next writable PAC zone, the optical disc drive may find bits 01 or 00 in the �PAC Status� information.
Moreover, a back up of the PAC information in the PACII zone may be written on the PACI zone, even though the bitmap indicating the PACII zone of the �PAC Status� field and the bitmap indicating the PACI zone are identical, if positions of the defective areas and/or other similar areas are not identical, the two bitmaps may not be identical. Therefore, if it is intended to read information written on the PACI zone due to an unavoidable situation, it may be necessary to refer to information indicating the PACI zone from the �PAC Status� field information of the DDS.
Other than the example method for representing the PAC status of the PACII zone and the PACI zone with 8 bytes in the DDS, there are also other example methods for representing only the PAC status of the PACII zone with only four bytes. This is, as described above, because information written on the PACII zone and the information written on the PACI zone is identical, and, in this instance, if it is desired to know the PAC status of the PACI zone, the PACI zone can be determined from a position of the PACII zone corresponding to the PACI zone.
In this example, if writing of the PAC information on the PACI zone corresponding to a position of the PACII zone fails due to defective area or other similar circumstance in the PACII or PACI zone, a method of not using the area may be employed.
Information representing positions of a plurality of valid PACs with the DDS like the example embodiments of the present invention may be favorable for a writable disc BD-RE, or R in which information is updated by successive writing.
For example, in the case of a write once high density optical disc BD-R, in which positions of the plurality of valid PACs are changed whenever writing is repeated after ejection due to the physical characteristics of the write once disk, the position information may be written on a Temporary Disc Management Area (TDMA) as a Temporary Disc Definition Structure (TDDS) information and written as DDS information at the time of completion of disc writing or disc closing, when no more writing is desired by the user.
FIG. 17 illustrates a block diagram of an optical recording/reproducing apparatus in accordance with an example embodiment of the present invention.
Referring to FIG. 17, the optical recording/reproducing apparatus may include a recording/reproducing device 10 for performing recording to and/or reproduction from the optical disc, and a host, or controller 20 for controlling the recording/reproducing device 10. In an example embodiment, the recording/reproducing device 10 may act as the �optical disc drive� discussed above in conjunction with many example embodiments of the present invention.
The PAC information may be written as a plurality of valid PACs on the PAC 2 zone of the INFO 2 zone at one cluster size and the plurality of valid PACs may be written on the PAC1 zone of the INFO 1 zone as a backup. In this example, position information of the plurality of valid PACs may be written on the DDS in the DMA of the optical disc by a method in accordance with example embodiments of the present invention.
In particular, the microcomputer 16 may provide position information on the area the data is written thereon or the PAC zone, and the data to the servo 14 and the data processor 13, so that the writing is finished at a desired position on the optical disc via the pickup part 11.
FIG. 18 illustrates a flowchart showing a method for recording/reproducing a high density optical disc having PAC recorded thereon in accordance with an example embodiment of the present invention.
The information in the memory 10 may include position information of various zones in the PAC zone on the disc. Particularly, positions of valid PACs in the PAC zone can be determined from the DDS information (S10).
After positions of the valid PACs are determined, a PAC_ID field of the PAC may be examined, to verify if the PAC_ID is an identified PAC_ID (S20 and S30).
If the written PAC_ID is identified, the method may determine that the recording and reproducing device having written the data on the disc is identical in version to a version of the present recording and reproducing device or determine there is no separate writing/reproduction restrictions, and the recording/reproduction may be executed according to the instruction from the host 20 (S40).
If identifying a code written on the PAC_ID fails, the method may then determine if there are restrictions, such as the recording and reproducing device having written the data on the disc has a version different from a version of the present recording and reproducing device, the recording/reproduction may be executed according to the instruction from the host with reference to recording/reproduction restriction areas on the disc written on the �Unknown PAC rule� (S50).
For this, the microcomputer 16 may provide the position information and data according to the instruction of the host to the servo 14 and the data-processor 13, so that the recording/reproduction is finished at a desired position on the optical disc via the pickup part 11.
As has been described, the apparatus and method for recording/reproduction to/from a high density optical disc of the present invention may have one or more of the following advantages.
Second, a plurality of valid PACs on the disc and/or pointers indicating positions of the PACs may permit more effective management of the PACs on the high density optical disc.
Patentzitate Zitiertes PatentEingetragen Ver�ffentlichungsdatum Antragsteller TitelUS523755324. Mai 199117. Aug. 1993Matsushita Electric Industrial Co.Data recording and reproducing apparatus having a plurality of operating modesUS5315447 *6. Apr. 199224. Mai 1994Hitachi, Ltd.Disk control method of format write operation using data distance on a trackUS538640229. Nov. 199331. Jan. 1995Kabushiki Kaisha ToshibaAccess control apparatus and address translation method for disk storage deviceUS54487285. Aug. 19925. Sept. 1995Sharp Kabushiki KaishaStorage medium control system for controlling a write-once read-many storage mediumUS555277624. Juni 19943. Sept. 1996Z-MicrosystemsEnhanced security system for computing devicesUS581548527. Aug. 199629. Sept. 1998Matsushita Electric Industrial Co., Ltd.Recording medium, a method for producing the same, a control method using the recording medium, and a recording/reproducing apparatus using the recording mediumUS611534630. Sept. 19995. Sept. 2000Hewlett-Packard CompanyMethod of reducing formatting time for rewritable compact disks by formatting less than the entire logical formatUS622330329. Juni 199824. Apr. 2001Western Digital CorporationDisk drive having two tiered defect list comprising marginal and reserved data sectorsUS6330210 *29. Apr. 199911. Dez. 2001Hewlett-Packard CompanyData structure for control information on rewriteable data storage mediaUS635178830. Okt. 199626. Febr. 2002Hitachi, Ltd.Data processor and data processing systemUS65265221. Juli 199925. Febr. 2003Lg Electronics Inc.Defect area management method of optical recording mediumUS6580684 *23. Febr. 200117. Juni 2003Sony CorporationRecording medium, recording apparatus, and reading apparatusUS662178328. M�rz 200016. Sept. 2003Yamaha CorporationMethods of retrieving information from optical disk and controlling access and recording to optical disk, and optical disk recording apparatusUS669120926. Mai 200010. Febr. 2004Emc CorporationTopological data categorization and formatting for a mass storage systemUS672520013. Sept. 199520. Apr. 2004Irmgard RostPersonal data archive systemUS67658535. Juli 200020. Juli 2004Samsung Electronics Co., Ltd.Recording medium for storing write protection information and write protection method thereofUS678583914. M�rz 200131. Aug. 2004Samsung Electronics, Co., Ltd.Method of verifying defect management area information of disc and test apparatus for performing the sameUS691218819. Aug. 200228. Juni 2005Yamaha CorporationOptical disk recording methodUS696352310. Jan. 20008. Nov. 2005Lg Electronics Inc.Optical recording medium and method for formatting the same with improved compatability and consistencyUS71333331. Aug. 20037. Nov. 2006Samsung Electronics Co., Ltd.Recording medium for storing defect management information for recording real time data, defect managing method therefor, and real time data recording methodUS721920230. Jan. 200415. Mai 2007Hitachi, Ltd.Cluster storage system and replication creation method thereofUS723089323. Jan. 200112. Juni 2007Lg Electronics Inc.Method of formatting optical recording mediumUS748076422. Febr. 200520. Jan. 2009Lg Electronics, Inc.Recording medium with overlapping segment information thereon and apparatus and methods for forming, recording, and reproducing the recording mediumUS2002003664325. Sept. 200128. M�rz 2002Yoshiyuki NamizukaImage-processing apparatus, image-processing method and recording mediumUS200200782952. Jan. 200220. Juni 2002Kamel ShaathMethod and system for providing restricted access to a storage mediumUS2002013611821. M�rz 200226. Sept. 2002Hideki TakahashiInformation recording medium having secret area, information recording apparatus capable of recording information in secret area, and information playback apparatus capable of playing back information from secret areaUS2003003535519. Aug. 200220. Febr. 2003Yamaha CorporationOptical disk recording methodUS2003004873128. Okt. 200213. M�rz 2003Fujitsu LimitedOptical disk drive, method for formatting optical disk, and optical diskUS200301379109. Jan. 200324. Juli 2003Hiroshi UedaMulti-layered information recording medium, reproduction apparatus, recording apparatus, reproduction method, and recording methodUS2003013791520. Jan. 200324. Juli 2003Mamoru ShojiInformation recording medium, recording apparatus, reproduction apparatus, recording method, and reproduction methodUS2003016966019. Nov. 199911. Sept. 2003Katsumi ShiraiData processing apparatus and access control methodUS20030210627 *16. Juni 200313. Nov. 2003Pope IjtsmaMethod of immediate writing or reading files on a disc like recording mediumUS20030212564 *10. Jan. 200313. Nov. 2003Pioneer CorporationInformation recording apparatus and method, information reproducing apparatus and method, information recording program and information reproducing program, recording medium and information recording mediumUS200400130613. Apr. 200322. Jan. 2004Tse-Hong WuMethod for defect management of an optical diskUS2004001748219. Nov. 200129. Jan. 2004Jacob WeitmanApplication for a mobile digital camera, that distinguish between text-, and image-information in an imageUS2004017478226. Febr. 20049. Sept. 2004Samsung Electronics Co., LtdMethod and apparatus for managing disc defect using temporary DFL and temporary DDS including drive & disc information disc with temporary DFL and temporary DDSUS20040174793 *23. Dez. 20039. Sept. 2004Park Yong CheolMethod for recording on optical recording medium and apparatus using the sameUS20040193946 *26. Sept. 200330. Sept. 2004Park Yong CheolWrite-once optical recording medium and defect management information management method thereofUS2004021848815. M�rz 20044. Nov. 2004Samsung Electronics Co., Ltd.Method and apparatus for managing defects in recording media, a computer readable medium including computer readable code for the same, and a defect managed recording medium obtained using the same method, appartus, and computer readable mediumUS20040228238 *18. Febr. 200418. Nov. 2004Samsung Electronics Co., Ltd.Recording medium for storing write protection information and write protection method thereofUS2004024685223. M�rz 20049. Dez. 2004Samsung Electronics Co., Ltd.Method of overwriting data in write-once information storage medium and data recording and/or reproducing apparatus for write-once information storage mediumUS200500837404. Juni 200321. Apr. 2005Shoei KobayashiDisc recording medium, recording method, disc drive deviceUS20050111315 *5. M�rz 200426. Mai 2005Samsung Electronics Co., Ltd.Write-once recording medium preserving data-recording status, method of preserving data-recording status of a write-once recording medium, medium including computer readable code for the same, and recording and/or reproducing apparatus thereforUS2005016913211. M�rz 20044. Aug. 2005Sony CorporationRecording medium, recording device, reproduction device, recording method and reproduciton methodUS20050195716 *12. Aug. 20038. Sept. 2005Samsung Electronics Co., Ltd.Disc with temporary disc definition structure (TDDS) and temporary defect list (TDFL), and method of and apparatus for managing defect in the sameUS2005020729417. M�rz 200522. Sept. 2005Park Yong CApparatus and method for recording and/or reproducing data to/from recording mediumUS2005020731822. Febr. 200522. Sept. 2005Park Yong CRecording medium with segment information thereon and apparatus and methods for forming, recording, and reproducing the recording mediumUS2005020732022. Febr. 200522. Sept. 2005Park Yong CRecording medium with physical access control (PAC) information thereon and apparatus and methods for forming, recording, and reproducing the recording mediumUS2005025956022. M�rz 200524. Nov. 2005Park Yong CRecording medium, and method and apparatus for recording and reproducing data on/from recording mediumUS200601847278. M�rz 200617. Aug. 2006Matsushita Electric Industrial Co., Ltd.Information recording medium, information recording method, information recording apparatus, information reproduction method, and information reproduction apparatusUS20060221689 *17. M�rz 20045. Okt. 2006Masayoshi YoshidaWrite once type recording medium, recording device and recording method for write once type recording medium, and reproduction device and reproduction method for write once type recording mediumUS200700532674. Mai 20048. M�rz 2007Koninklijke Philips Electronics N.V.Method for formatting an optical discUS2007021158910. Mai 200713. Sept. 2007Park Yong CRecording medium with segment information thereon and apparatus and methods for forming, recording, and reproducing the recording mediumUS2007021159010. Mai 200713. Sept. 2007Park Yong CRecording medium with segment information thereon and apparatus and methods for forming, recording, and reproducing the recording mediumCN1192818A7. Aug. 19969. Sept. 1998松下电器产业株式会社Information recording/reproducing device and information recording/reproducing mediumCN1441430A15. Jan. 200310. Sept. 2003株式会社理光Information reproducing equipment, obtaining method and program for data management information and storage mediumEP0495471A215. Jan. 199222. Juli 1992Matsushita Electric Industrial Co., Ltd.Magnetic disk and magnetic disk deviceEP0997904A16. Aug. 19993. Mai 2000Matsushita Electric Industrial Co., Ltd.Information recording medium, and method and apparatus for managing defect thereofEP1061517A114. Dez. 199920. Dez. 2000Matsushita Electric Industrial Co., Ltd.A method of recording realtime data and a realtime data recording apparatusEP1251508A217. Apr. 200223. Okt. 2002Kabushiki Kaisha ToshibaInformation recording medium, information recording apparatus, and information playback apparatusEP1306840A214. Juni 19992. Mai 2003Samsung Electronics Co., Ltd.Recording medium for storing write protection information and write protection method thereofEP1329888A117. Jan. 200323. Juli 2003Matsushita Electric Industrial Co., Ltd.Multi-layered information recording medium, reproduction apparatus, recording apparatus, reproduction method, and recording methodEP1381047A11. Juli 200314. Jan. 2004Kabushiki Kaisha ToshibaInformation recording medium, information recording apparatus and information recording methodEP1505597A111. M�rz 20049. Febr. 2005Sony CorporationRecording medium, recording device, reproduction device, recording method, and reproduction methodEP1587102A217. M�rz 200419. Okt. 2005Pioneer CorporationWrite-once-type recording medium.EP1887577A23. M�rz 200513. Febr. 2008LG Electronics Inc.Recording medium with physical access control (PAC) cluster thereon and apparatus and methods for forming, recording, and reproducing the recording mediumJP2000322835A Titel nicht verf�gbarJP2002015525A Titel nicht verf�gbarJP2002124037A Titel nicht verf�gbarJP2002278821A Titel nicht verf�gbarJP2002328848A Titel nicht verf�gbarJP2003228835A Titel nicht verf�gbarJP2003242650A Titel nicht verf�gbarJP2003323769A Titel nicht verf�gbarJP2003346426A Titel nicht verf�gbarJP2004030779A Titel nicht verf�gbarJP2006313628A Titel nicht verf�gbarJPH1139801A Titel nicht verf�gbarJPH06259886A Titel nicht verf�gbarJPH07121993A Titel nicht verf�gbarJPH07200182A Titel nicht verf�gbarJPH09213011A Titel nicht verf�gbarMXA05001548A Titel nicht verf�gbarRU2225043C1 Titel nicht verf�gbarRU2269829C2 Titel nicht verf�gbarRU2299481C2 Titel nicht verf�gbarWO2000045386A127. Jan. 20003. Aug. 2000Matsushita Electric Ind Co LtdRecording method and reproduction method suitable for recording/reproduction of av data, and recording drive and reproduction driveWO2001001416A123. Juni 20004. Jan. 2001Koninkl Philips Electronics NvData allocation in dvd recordingWO2001018731A17. Sept. 200015. M�rz 2001Michael F BraitbergWriteable medium access control using a medium writeable areaWO2002052556A17. Nov. 20014. Juli 2002Matsushita Electric Ind Co LtdRecording/playback apparatus, playback apparatus, computer-readable recording medium, program and methodWO2002067093A220. Febr. 200229. Aug. 2002Sony Comp Emtertainment UsApparatus and method for utilizing an incentive point system based on disc and user identificationWO2003030173A218. Sept. 200210. Apr. 2003Koninkl Philips Electronics NvMethod and apparatus for recording a digital information signalWO2003102936A110. M�rz 200311. Dez. 2003Samsung Electronics Co LtdMulti-layered optical information storage medium and recording/reproducing method thereforWO2003105150A14. Juni 200318. Dez. 2003Shoei KobayashiDisc recording medium, recording method, disc drive deviceWO2004001753A118. Juni 200331. Dez. 2003Lg Electronics IncRecording medium having data structure for managing reproduction of multiple reproduction path video data for at least a segment of a title recorded thereon and recording and reproducing methods and apparatusesWO2004001754A118. Juni 200331. Dez. 2003Lg Electronics IncRecording medium having data structure for managing reproduction of multiple reproduction path video data for at least a segment of a title recorded thereon and recording and reproducing methods and apparatusesWO2004019326A121. Aug. 20034. M�rz 2004Toshiaki IwanagaOptical information recording/reproduction medium recording method, recording/reproduction method, and reproduction method, recording device, recording/reproduction device, reproduction device, and optical information recording/reproduction mediumWO2004025649A19. Sept. 200325. M�rz 2004Jung-Wan KoMethod and apparatus for managing disc defectsWO2004036561A122. Sept. 200329. Apr. 2004Samsung Electronics Co LtdMethod of and apparatus for managing disc defects using temporary defect management information (tdfl) and temporary defect management information (tdds), and disc having the tdfl and tddsWO2004079730A127. Febr. 200416. Sept. 2004Sung-Hee HwangMethod and apparatus for managing disc defect and disc thereforWO2004081936A111. M�rz 200423. Sept. 2004Shoei KobayashiRecording medium, recording device, reproduction device, recording method, and reproduction methodWO2004100159A14. Mai 200418. Nov. 2004Robert A BrondijkMethod for formatting an optical discWO2005004154A27. Juli 200413. Jan. 2005Matsushita Electric Ind Co LtdWrite-once recording medium, recording method, recording apparatus, reproduction method, and reproduction apparatusWO2005086598A210. M�rz 200522. Sept. 2005Lg Electronics IncApparatus and method for recording and/or reproducing data to/from recording mediumWO2005088636A13. M�rz 200522. Sept. 2005Lg Electronics IncRecording medium with overlapping segment information thereon and apparatus and methods for forming, recording, and reproducing the recording medium* Vom Pr�fer zitiertNichtpatentzitateReferenz1"120 mm DVD Rewritable Disk (DVD-RAM)", ECMA Standardizing Information and Communication Systems, Standard ECMA-272, 2nd Edition, Jun. 1999.2Blu-Ray Disc Association, "Rewritable Blu-Ray Disc (BD-RE) Multi-Media Command Set Description, Version 0.80", [Online]Nov. 9, 2004.3Chinese Office Action dated Oct. 23, 2009 for corresponding Application No. 200710138431.4.4English language translation of Office Action issued Mar. 30, 2009 by the Russian Patent Office in counterpart Russian Patent Application No. 2006136920.5European Patent Office Action dated May 14, 2008, for European Patent Application No. 04808643.3-2223.6European Patent Office Search Report dated May 15, 2008, for European Patent Application No. 07111355.9-2223.7International Search Report issued Jun. 15, 2005 in corresponding International Application No. PCT/KR2004/003515.8Japanese Office Action dated Nov. 6, 2009 for corresponding Application No. 2007-503814.9Japanese Office Action dated Oct. 16, 2009 for Japanese Patent Application No. 2007-238481.10Japanese Office Action dated Oct. 16, 2009 for Japanese Patent Application No. 2007-503819.11Notice of Allowance for Russian patent application No. 2006136909/28 dated Aug. 20, 2009.12Office Action issued Jan. 15, 2009 by the Russian Patent Office in Counterpart Russian Patent Application No. 2006136909 (with English language translation).13Office Action issued Jun. 11, 2009 by the USPTO in related U.S. Appl. No. 11/061,891.14Office Action issued Jun. 23, 2009 by the Australian Patent Office in counterpart Australian Patent Application No. 2004317315.15Office Action issued May 22, 2009 by the Malaysian Patent Office in counterpart Malaysian Patent Application No. PI 20045424.16Office Action issued Sep. 12, 2008 by the USPTO in counterpart U.S. Appl. No. 11/155,485.17Office Action issued Sep. 3, 2008 by the USPTO in counterpart U.S. Appl. No. 11/085,134.18Russian Notice of Allowance dated Oct. 25, 2009 for corresponding Application No. 2006136920/28(040193).19Search report issued Aug. 4, 2008 by the European Patent Office in counterpart European Patent Application No. 07110264.4-2223.20Search report issued Jul. 30, 2008 by the European Patent Office in counterpart European Patent Application No. 07150328.4-2223.21Search Report issued May 23, 2008 by the European Patent Office in counterpart European Patent Application No. 07120363.2-2223.22U.S. Patent Office Action dated May 13, 2008, for U.S. Appl. No. 11/061,665. Referenziert von Zitiert von PatentEingetragen Ver�ffentlichungsdatum Antragsteller TitelUS809452417. M�rz 200510. Jan. 2012Lg Electronics Inc.Apparatus and method for recording and/or reproducing data to/from recording mediumUS812587922. Juni 200728. Febr. 2012Lg Electronics Inc.Apparatus and method for recording and/or reproducing data to/from recording mediumKlassifizierungen US-Klassifikation369/30.03Internationale KlassifikationG11B20/10, G11B27/32, G11B20/00, G11B27/30, G11B20/18, G11B20/12, G11B7/00, G11B7/0037, G11B21/08 UnternehmensklassifikationG11B7/24038, G11B20/1217, G11B2020/1896, G11B7/00736, G11B2220/20, G11B2020/1873, G11B20/12, G11B7/00375, G11B7/0037, G11B2020/1221, G11B27/36, G11B2020/1278, G11B2020/1229, G11B2020/1265, G11B27/322, G11B2007/0013, G11B20/00086, G11B2220/2537, G11B20/1883, G11B2220/2541, G11B2020/1277, G11B27/3027, G11B20/1252 Europ�ische KlassifikationG11B20/00P, G11B27/32B, G11B20/12, G11B27/30C, G11B7/007R, G11B27/36, G11B7/0037D, G11B20/12D, G11B20/18S, G11B20/12D6, G11B7/0037Juristische Ereignisse DatumCodeEreignisBeschreibung20. 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