CN100386814C - Method and system for searching and recording digital data in optical recording medium - Google Patents

Method and system for searching and recording digital data in optical recording medium Download PDF

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Publication number
CN100386814C
CN100386814C CNB021427674A CN02142767A CN100386814C CN 100386814 C CN100386814 C CN 100386814C CN B021427674 A CNB021427674 A CN B021427674A CN 02142767 A CN02142767 A CN 02142767A CN 100386814 C CN100386814 C CN 100386814C
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China
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record
block
defect
search
hurdle
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CNB021427674A
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Chinese (zh)
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CN1484244A (en
Inventor
李明鸿
吴元丁
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MediaTek Inc
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MediaTek Inc
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Abstract

The present invention provides a searching and recording method for searching a corresponding replacement block for a defect block in an optical recording medium. The optical recording medium comprises a plurality of defect management areas and a defect recording table which comprises a plurality of defect table blocks corresponding to the defect management areas; each defect table block is provided with a plurality of recording columns; when a piece of digital data originally recorded in a preset block of the target defect management area has to be recorded in the other block after judgment, whether spare recording columns in the target defect table block corresponding to the target defect management area can be used for recording is inspected; if the corresponding target defect table block has no spare recording column, the adjacent defect table block is searched in sequence by using the target defect table block as the centre, until the spare recording column is searched; the digital data is recorded in a replacement area of the defect management area corresponding to the replacement defect table block.

Description

A kind of search and the method and system that write down numerical data in optical record medium
Invention field
The invention relates to a kind of search and the method and system that write down, refer in particular to the method and system that a numerical data correctly are recorded in an optical record medium.
Background technology
(Defect Table DT), makes CD player when the defect block that writes down or read on the discs, can search alternative piece according to described defect record table to have a defect record table on the known discs.
Ask for an interview Fig. 1, Fig. 1 is the file planar configuration synoptic diagram of known complete formative discs 10.Discs 10 comprises at the most 64 defect management (not shown)s (DefectManagement Area) of arranging in proper order, a major defect table (Main Defect Table), and one second defect record table (Second Defect Table), is stored in introducing district (Lead-in Area) 12, and the program area (Program Area) 14 of outer ring of discs 10 center sections 16, inner ring respectively.
Each defect management all comprises a data area (Data Area) and a replacement area (SpareArea).Thereby discs 10 is to comprise 64 data zones and corresponding replacement area at the most respectively.Known described data area includes 4352 pieces, can be used to write down numerical data.And described replacement area includes 256 pieces, when being damaged in order to the piece in the data area, substitutes the record numerical data.Each piece all has a corresponding address information for distinguishing.
The described second defect record table data are to duplicate from described major defect table, at this second defect record table and major defect table are referred to as defect record table 18 (Defect Table).Defect record table 18 comprises 8 groupings 19 at the most.Include 4 groups of defective table block groups 22,24,26,28 of arranging in each grouping 19, in every group of defective table block group 22,24,26,28 8 defective table blocks 20 are arranged according to certain particular order.Described 4 groups of defective table block groups are data of 8 defective table blocks 20 of duplicate record.Therefore, defect record table 18 includes 64 defective table blocks 20 at the most altogether, respectively with respect to the replacement area in corresponding the defect management.
Each defective table block 20 includes the record hurdle of a plurality of predetermined numbers, corresponds to 256 pieces of described replacement area one by one.A numerical data when a predetermined block that originally should be recorded in a target defect management, in the time of must being recorded in another piece through judging, then among inspection and the corresponding target defective table block 20a of described target defect management, whether still have idle record hurdle can supply record.If still have idle record hurdle among the defective table block 20a, then with described digital data record with corresponding described another piece in described idle record hurdle in.When target defective table block 20a there is no idle record hurdle, check whether next defective table block 20b still has idle record hurdle can supply record.And when in running into defective table block 20b, still not having the situation on idle record hurdle, known method be CD player will continue check defective table block 20b next defective table block 20c up to finding idle record hurdle.Yet because the CD player entity structure, to search for required mobile distance longer for optical disk head in known searching method, thereby wasted the time of many search.
Summary of the invention
Therefore, fundamental purpose of the present invention be to provide a kind of in optical record medium the method and system of effective search and record numerical data, to address the above problem.
The invention provides a kind of search and the method that writes down, be used for searching for corresponding replacement block (replacement block) for the defect block in the optical record medium (defect block), so that a numerical data correctly is recorded in the described optical record medium, described optical record medium includes a plurality of defect managements of arranging in proper order (Defect Management Area), each described defect management comprises a data area (Dara Area) and a replacement area (Spare Area), the both includes a plurality of and can be used to write down numerical data, and each described and have a corresponding address information for distinguishing, described optical record medium includes a defect record table (Defect Table) in addition, include a plurality of defective table block (Defect Table Block that arrange in proper order, DTB), each described defective table block is with respect to the defect management in the described optical record medium, and include the record hurdle of a plurality of predetermined numbers, to correspond to a plurality of of described replacement area one by one, described search and recording method comprise the following step:
In described optical record medium, a numerical data of a predetermined block in the data area that originally should be recorded in a target defect management, in the time of must being recorded in another piece through judging, then check in the described defect record table with the corresponding target defective of described target defect management table block in, whether still have idle record hurdle can supply record;
If still have an idle record hurdle in the described corresponding target defective table block at least, then with described digital data record in the replacement area of described target defect management with the corresponding replacement block in described idle record hurdle in;
If there is no idle record hurdle in the described corresponding target defective table block, be the center then with described target defective table block, further since the mode that jumps of rebound search in proper order and whether still have any idle record hurdle can be in the adjacent defective table block for substituting record; And
When in searching a defective table block that substitutes, having idle record hurdle, then with described digital data record described alternative defective table block in the replacement area of corresponding defect management with the corresponding replacement block in described idle record hurdle in.
The present invention also provides the system of a kind of search with record, be used for searching for corresponding replacement block (replacement block) for the defect block in the optical record medium (defect block), so that a numerical data correctly is recorded in the described optical record medium, described optical record medium includes a plurality of defect managements of arranging in proper order (Defect Management Area), each described defect management comprises a data area (Data Area) and a replacement area (Spare Area), the both includes a plurality of and can be used to write down numerical data, and each described and have a corresponding address information for distinguishing, described optical record medium includes a defect record table (Defect Table) in addition, include a plurality of defective table block (Defect Table Block that arrange in proper order, DTB), each described defective table block is with respect to the defect management in the described optical record medium, and include the record hurdle of a plurality of predetermined numbers, to correspond to a plurality of of described replacement area one by one, described search and recording method include:
One substitutes judge module, is used for judging a numerical data of a predetermined block in the data area of a target defect management that originally should be recorded in described optical record medium, whether needs to be recorded in another piece;
One search module, when described alternative judge module is judged described digital data record at another piece, then described search module can check in the described defect record table with the corresponding target defective of described target defect management table block in, whether still have idle record hurdle can supply record;
One logging modle, if still have an idle record hurdle in the described corresponding target defective table block at least, then described logging modle can with described digital data record in the replacement area of described target defect management with the corresponding replacement block in described idle record hurdle in;
Wherein, if there is no idle record hurdle in the described corresponding target defective table block, then described search module can be the center with described target defective table block, whether the mode that rebound jumps is further searched in proper order and is still had any idle record hurdle to have idle record hurdle in searching a defective table block that substitutes for substituting record in the adjacent defective table block; Then by described logging modle with described digital data record described alternative defective table block in the replacement area of corresponding defect management with the corresponding replacement block in described idle record hurdle in.
Compare with known searching method, search and the method that writes down in an optical record medium of the present invention, with target defective table block is the center, since the mode that jumps of rebound search for whether still have any idle record hurdle in the adjacent defective table block in proper order, can effectively improve the efficient of CD player record numerical data.
Can be further understood according to following detailed Description Of The Invention and appended accompanying drawing about the advantages and spirit of the present invention.
Description of drawings
Fig. 1 is the file planar configuration synoptic diagram of known discs.
Fig. 2 is of the present invention at the block search of an optical record medium and the synoptic diagram of recording method.
Fig. 3 is the recorded information synoptic diagram on record hurdle in Fig. 2 defective table block.
The flow chart of steps of the method that Fig. 4 searches in optical record medium for the present invention and writes down.
Fig. 5 is the functional block diagram of search of the present invention and register system.
The symbol description of accompanying drawing
30 defect managements
32 data areas
34 replacement area
33a, 35,35a piece
36 defect record tables
38 defective table blocks
40,44a record hurdle
40a, 40b unit
42 zones, record hurdle of having used
Zone, 44 spendable record hurdle
46 zones, record hurdle that can not use
50 systems
52 substitute judge module
54 search modules
56 logging modles
Embodiment
The invention provides a kind of search and the method and system that write down, be used for searching for corresponding replacement block (replacement block), so that a numerical data correctly is recorded in the described optical record medium for the defect block in the optical record medium (defect block).Described optical record medium can be the discs of CD-RW (Compact Disk reWritable) or DVD+RW (Digital Versatile DiskreWritable) ... etc.
See also Fig. 2, Fig. 2 is that the present invention is at the block search of an optical record medium and the synoptic diagram of recording method.One optical record medium includes a plurality of defect managements of arranging in proper order (DefectManagement Area) 30.Each defect management 30 comprises a data area (Data Area) 32 and one replacement area (Spare Area) 34.Data area 32 all includes a plurality of 35 with replacement area 34, can be used to write down numerical data.And each piece 35 and have a corresponding address information for distinguishing.
Described optical record medium includes a defect record table (Defect Table) 36 in addition.Defect record table 36 includes a plurality of defective table block (Defect Table Block, DTB) 38 of arranging in proper order.Each defective table block 38 is the replacement area 34 that comprised with respect in the defect management 30.Each defective table block 38 includes the record hurdle 40 of a plurality of predetermined numbers.The record hurdle 40 of each defective table block 38 corresponds to the piece 35 in each replacement area 34 one by one.
Each record hurdle 40 all is divided into unit 40a and unit 40b two parts.Unit 40a is in order to the corresponding address information of the piece 33a that occurs defective in the record data zone 32.Unit 40b is in order to the corresponding address information of record replacement block 34.
See also Fig. 3, Fig. 3 is the recorded information synoptic diagram on record hurdle 40 in Fig. 2 defective table block 38.Each defective table block 38 is according to the recording status of piece 35 in the record hurdle 40 pairing replacement area 34, each defective table block 38 can be divided into three big zones: first, zone, service recorder hurdle 42 represents that wherein writing down the pairing replacement block 35 in hurdle has replaced 40a indicated piece in unit to record numerical data; The second, can use but idle zone, record hurdle 44 represents that pairing replacement block 35 has not been recorded numerical data; The 3rd, can not zone, service recorder hurdle 46, represent that pairing replacement block 35 is unavailable with the record numerical data.Therefore, can use but idle zone, record hurdle 44, just can learn whether still have the idle replacement block 35 can be in the replacement area 34 in order to the record numerical data as long as whether still have in the search defective table block 38.
When numerical data of optical record medium record, in the piece with described digital data record data area 32 in a certain defect management 30, referred to herein as the piece 33a of the data area n of target defect management n.When defective takes place in the piece 33a of data area n can't record, or can't correctly read behind the record time, then substitute judge module (not being presented at Fig. 2 or Fig. 3) and judge that described numerical data must be recorded in another piece by one.For example: when will be with described digital data record during at described optical record medium, if original described numerical data should be recorded in a predetermined block 33a, and piece 33a be damaged; Perhaps when writing down described numerical data at piece 33a, to read the signal of described numerical data subsequently from piece 33a, and producing a upset operation when reading, then described alternative judge module judges that described numerical data must be recorded in another piece that is positioned at replacement area 34.
See also Fig. 2 and Fig. 4, Fig. 4 is the flow chart of steps of the method for searching in optical record medium and writing down of the present invention.The numerical data of a predetermined block 33a in the data area n that originally should be recorded in a target defect management n in the time of must being recorded in another piece of replacement area 34 through described alternative judge module judgement, is then utilized search of the present invention and recording method.Search of the present invention and recording method comprise the following step:
Step S60: beginning;
Step S62: check in the defect record table 30 with the corresponding target defective of target defect management n table block n in, whether still have idle record hurdle 44a can supply record;
Step S64: if still have an idle record hurdle 44a in the corresponding target defective table block at least, then with described digital data record in the replacement area n of described target defect management with the corresponding replacement block 35a in described idle record hurdle in;
Step S66: if there is no idle record hurdle 41 in the target defective table block, be the center then with target defective table block n, whether the mode that rebound jumps is further searched in proper order and is still had any idle record hurdle to have idle record hurdle in searching a defective table block that substitutes for substituting record in the adjacent defective table block;
Step S68: with described digital data record the defective table block that substitutes in the replacement area of corresponding defect management with the corresponding replacement block in described idle record hurdle in;
Step S70: finish.
As shown in Figure 2, in the present embodiment, because the piece 33a among the n of data area is damaged, a numerical data that therefore originally should be recorded in piece 33a must be recorded in another piece.Check the defective table block n in the defect record table 30, whether still have idle record hurdle 44a can supply record.If still have an idle record hurdle 44a among the defective table block n at least, then with described digital data record in replacement area n with the corresponding replacement block 35a of record hurdle 44a in.
If there is not idle record hurdle among the defective table block n, be the center with defective table block n, and since the mode that jumps of rebound search for adjacent defective table block in proper order and whether still have any idle record hurdle.Promptly continue to check defective table block n+1 according to Fig. 2 arrow 1 direction, if still there is not idle record hurdle among the defective table block n+1, continuation is checked defective table block n-1, n+2, n-2... etc. according to arrow 2,3,4... etc., the rest may be inferred, when in searching a defective table block, having idle record hurdle, with described digital data record with the corresponding replacement block in described idle record hurdle in.
See also Fig. 5, Fig. 5 is the functional block diagram of search of the present invention and register system 50.Search of the present invention and register system 50 can be a CD player, include one and substitute judge module 52, a search module 54 and a logging modle 56.Substituting judge module 52 is numerical datas that are used for judging a predetermined block among the data area n that should be recorded in defect management 30, whether must be recorded in another piece.Judge that described numerical data should be recorded in another piece if substitute judge module 52, search module 54 can check in the described defect record table 30 with the corresponding defective table block of defect management n n in, whether still have idle record hurdle can supply record.If still have idle record hurdle 44a among the defective table block n, logging modle 56 with described digital data record with the corresponding replacement block of record hurdle 44a in.
If there is not idle record hurdle among the defective table block n, then search module 54 can be the center with defective table block n, the mode that rebound jumps is further searched for adjacent defective table block n+1, n-1, n+2, n-2... or the like (as shown in Figure 2) in proper order, whether still have any idle record hurdle in searching a defective table block that substitutes, to have idle record hurdle for substituting record.
Compare with known searching method, the invention provides a kind of in an optical record medium method of search and record, be the center with target defective table block, since the mode that jumps of rebound search for whether still have any idle record hurdle in the adjacent defective table block in proper order.Therefore can improve the efficient of CD player record numerical data effectively.
The detailed description of above best specific embodiment is to wish to know more to describe feature of the present invention and spirit, and does not really want to come category of the present invention is limited with above-mentioned disclosed best specific embodiment.On the contrary, its objective is that hope can cover various changes and suitable configuration thereof in the scope of claim of the present invention.

Claims (11)

1. the method for search and record, be used for searching for corresponding replacement block for the defect block in the optical record medium, so that a numerical data correctly is recorded in the described optical record medium, described optical record medium includes a plurality of defect managements of arranging in proper order, each described defect management comprises a data area and a replacement area, the both includes a plurality of and can be used to write down numerical data, and each described and have a corresponding address information for distinguishing, described optical record medium includes a defect record table in addition, include a plurality of defective table blocks of arranging in proper order, each described defective table block is corresponding with the defect management in the described optical record medium, and include the record hurdle of a plurality of predetermined numbers, to correspond to a plurality of of described replacement area one by one, described search and recording method comprise the following step:
In described optical record medium, a numerical data of a predetermined block in the data area that originally should be recorded in a target defect management, in the time of must being recorded in another piece through judging, then check in the described defect record table with the corresponding target defective of described target defect management table block in, whether still have idle record hurdle can supply record;
If still have an idle record hurdle in the described corresponding target defective table block at least, then with described digital data record in the replacement area of described target defect management with the corresponding replacement block in described idle record hurdle in;
If there is no idle record hurdle in the described corresponding target defective table block, be the center then with described target defective table block, further since the mode that jumps of rebound search in proper order and whether still have any idle record hurdle can be in the adjacent defective table block for substituting record; And
When in searching a defective table block that substitutes, having idle record hurdle, then with described digital data record described alternative defective table block in the replacement area of corresponding defect management with the corresponding replacement block in described idle record hurdle in.
2. search as claimed in claim 1 and recording method wherein comprise one in addition and substitute judge module, whether must be recorded in another piece to judge described numerical data.
3. search as claimed in claim 2 and recording method, wherein when will be with described digital data record during at described optical record medium, be damaged if originally should write down the predetermined block of described numerical data, described alternative judge module judges that then described numerical data must be recorded in another piece.
4. search as claimed in claim 2 and recording method, in the time of wherein will from described optical record medium, reading described numerical data, if reading described numerical data produces a upset operation, described alternative judge module judges that then described numerical data must be recorded in another piece.
5. search as claimed in claim 1 and recording method, wherein said optical record medium are CD-RW.
6. search as claimed in claim 1 and recording method, wherein said optical record medium are DVD+RW.
7. the system of search and record, be used for searching for corresponding replacement block for the defect block in the optical record medium, so that a numerical data correctly is recorded in the described optical record medium, described optical record medium includes a plurality of defect managements of arranging in proper order, each described defect management comprises a data area and a replacement area, the both includes a plurality of and can be used to write down numerical data, and each described and have a corresponding address information for distinguishing, described optical record medium includes a defect record table in addition, include a plurality of defective table blocks of arranging in proper order, each described defective table block is corresponding with the defect management in the described optical record medium, and include the record hurdle of a plurality of predetermined numbers, to correspond to a plurality of of described replacement area one by one, the system of described search and record includes:
One substitutes judge module, is used for judging a numerical data of a predetermined block in the data area of a target defect management that originally should be recorded in described optical record medium, whether needs to be recorded in another piece;
One search module, when described alternative judge module judged that described numerical data need be recorded in another piece, then described search module can check in the described defect record table with in the corresponding target defective of the described target defect management table block whether still have idle record hurdle can supply record;
One logging modle, if still have an idle record hurdle in the described corresponding target defective table block at least, then described logging modle can with described digital data record in the replacement area of described target defect management with the corresponding replacement block in described idle record hurdle in;
Wherein, if there is no idle record hurdle in the described corresponding target defective table block, then described search module can be the center with described target defective table block, whether the mode that rebound jumps is further searched in proper order and is still had any idle record hurdle to have idle record hurdle in searching a defective table block that substitutes for substituting record in the adjacent defective table block; Then by described logging modle with described digital data record described alternative defective table block in the replacement area of corresponding defect management with the corresponding replacement block in described idle record hurdle in.
8. search as claimed in claim 6 and register system, wherein when will be with in described digital data record is in described optical record medium, be damaged if originally should write down the predetermined block of described numerical data, described alternative judge module judges that then described numerical data must be recorded in another piece.
9. search as claimed in claim 7 and register system, wherein to from described optical record medium, read in the described numerical data, if reading described numerical data produces a upset operation, described alternative judge module judges that then described numerical data must be recorded in another piece.
10. search as claimed in claim 6 and register system, wherein said optical record medium are CD-RW.
11. search as claimed in claim 6 and register system, wherein said optical record medium are DVD+RW.
CNB021427674A 2002-09-19 2002-09-19 Method and system for searching and recording digital data in optical recording medium Expired - Fee Related CN100386814C (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4669004A (en) * 1986-02-27 1987-05-26 Quantum Corporation High capacity disk file with embedded sector servo
JPH11149718A (en) * 1997-11-18 1999-06-02 Sony Corp Disk-recording region management device
CN1233052A (en) * 1998-04-20 1999-10-27 三星电子株式会社 Recording medium for storing defect management information for recording real time data, defect managing method therefor, and real time data recording method
CN1338103A (en) * 1999-03-08 2002-02-27 松下电器产业株式会社 Information recording medium, information recording method, information recording device and information reproducing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4669004A (en) * 1986-02-27 1987-05-26 Quantum Corporation High capacity disk file with embedded sector servo
JPH11149718A (en) * 1997-11-18 1999-06-02 Sony Corp Disk-recording region management device
CN1233052A (en) * 1998-04-20 1999-10-27 三星电子株式会社 Recording medium for storing defect management information for recording real time data, defect managing method therefor, and real time data recording method
CN1338103A (en) * 1999-03-08 2002-02-27 松下电器产业株式会社 Information recording medium, information recording method, information recording device and information reproducing device

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