CN100365728C - Formatting method for optical recording player - Google Patents
Formatting method for optical recording player Download PDFInfo
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- CN100365728C CN100365728C CNB031508405A CN03150840A CN100365728C CN 100365728 C CN100365728 C CN 100365728C CN B031508405 A CNB031508405 A CN B031508405A CN 03150840 A CN03150840 A CN 03150840A CN 100365728 C CN100365728 C CN 100365728C
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Abstract
The present invention relates to a formatting method for an optical recording player, which comprises the following processing stages: in the first stage, a formatting object area of an entire disc is divided into N parts; in the second stage, the parts are tested so as to obtain the information of data blocks which generate defects; in the third stage, by using the information of the defect data blocks, the initialization and the defect processing operation are executed for the parts simultaneously. The initialization and the defect processing of the third stage are that by using the information of the defect data blocks, the address information of the corresponding data blocks in the area where the defects are generated is recorded to a standby area, and the corresponding data blocks in the area where the defects are not generated record certain initial information. The whole formatting object area is divided into the N parts by the present invention, the parts are tested then, by using test results, the initialization and the defect processing are executed simultaneously, and thereby, the operation of an optical pick-up device can be reduced. The time of background formatting is shortened, and stability is improved.
Description
(1) technical field
The invention relates to the formatting method of optical recording player, especially about in CD-MRW, carrying out the formatting method of the formative optical recording player of background.
(2) background technology
Now, in the re-recordable optical disc, CD-RW (Compact disk-rewritable) as a kind of carry out about about 1,000 time again the record re-recordable optical disc, be a kind of medium that can store jumbo ephemeral data or permanent data, used widely.But when occurring because of the defective on the CDs such as cut that video disc is out of shape or miscarriage causes, the partial data of storing on the above-mentioned CD will cause to be lost, and this is not still had the countermeasure of solution.Nearest defect processing specification (CD-MRW Defect management﹠amp along with CD-RW; Constantly delivering physical formatting), the loss of data that makes defective because of CD-RW cause also can be carried out preventing to a certain degree.Above-mentioned specification to the effect that guarantee spare area (sparearea) on the CD, when data area (data area) produces defective, the data that will be recorded in above-mentioned data area are originally replaced record above-mentioned spare area.
In addition, for above-mentioned CD-MRW, background format (Back ground format) is not being accepted any control command from main frame, and optical recording player does not also carry out under the situation of any operation, carries out the initialization operation of CD.
Fig. 1 is the precedence diagram of the formatting method of existing optical recording player.
With reference to Fig. 1, receive from main frame and to carry out background formatting command S110, if current optical recording player is in " idle state (idle time) " S120, optical recording player is the whole formatting object area dividing of CD 144 data block (144*39 block just; Below be called " unit " (unit)), then Unit the 1st is carried out initialization (deicing) treatment S 130.Above-mentioned initialization refers to and write down initial information " AA " on said units.
Then, after the initialization end to above-mentioned Unit the 1st, just carry out check (verify) S140 to said units.Above-mentioned check is checked CRC (CRC) mistake that produces in the playing process after referring to and playing Unit the 1st, searches said units then and whether has defective (defect) S150.
By above-mentioned check, if find defective, just carry out defect processing (Defect management) S160, with the address information recording of this respective data blocks to spare area.
Then, with said method successively to remaining unit (Unit the 2nd, Unit the 3rd ..., the N unit) and format (S170) (S180).
In addition, the servo control operation in the middle of the above-mentioned existing formatting method is as follows.
At first, for Unit the 1st is carried out initialization, with the initial position of play mode retrieval said units, retrieval is converted to logging mode after finishing, and carries out initialization then.Whether initialization exists defective in order to confirm Unit the 1st after finishing, and is converted to the initial position that play mode is retrieved said units then again again.Retrieval finishes the back and plays the initial information (" AA ") that writes down on the said units, confirms whether to exist defective.If find defective this moment, be converted to logging mode with the address information recording of respective data blocks to spare area.
Like this, existing method, in carrying out formative process, what light picker did not stop moves forward and backward, and pattern is also constantly changed between logging mode and play mode repeatedly, and is just very high to the requirement of servomechanism like this.Thereupon, whole formative process required time becomes very long, the possibility that also just exists formative stability to reduce.In addition, existing method is that to be that unit carries out formative with the unit, and said units is smaller data block, so above-mentioned this class problem is just severe more.
(3) summary of the invention
The present invention just is being based on to address the above problem and is carrying out.The object of the present invention is to provide a kind of formatting method of new optical recording player, the method is divided into the part bigger than unit of cells (part) unit with whole formatting object area region, check above-mentioned part then, utilize assay to carry out initialization and defect processing (defect management) simultaneously, thereby can reduce the operation of light picker, and then shorten the whole formative time.
To achieve these goals, the formatting method of optical recording player of the present invention is characterized in comprising the following operational phase:
Phase one is a N part with the formatting object area dividing of whole CD;
Subordinate phase, the check each part mentioned above obtains the relevant information that the defective data piece takes place;
Phase III, utilize above-mentioned defective data block message, carry out initialization and defect processing operation simultaneously to each part mentioned above.
Above-mentioned subordinate phase comprises that also the defective data block message that the above-mentioned part of check is obtained stores storer into.
The inspection of above-mentioned subordinate phase is that (Absoulte TimeIn Pre-groove: the absolute time in the forward recess) CRC of information (CRC) check realizes the ATIP that comprises in the dither signal by CD.
The initialization of above-mentioned phase III and defect processing are to utilize the information of above-mentioned defective data piece, the address information recording of respective data blocks in zone that defective takes place to spare area, is then write down certain initial information in this respective data blocks for the zone that defective does not take place.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is the process flow diagram of the formatting method of existing optical recording player.
Fig. 2 is the structural drawing of optical recording player of the present invention.
Fig. 3 is the formatting method embodiment process flow diagram of optical recording player of the present invention.
(5) embodiment
With reference to Fig. 2, comprise in the above-mentioned optical recording player: the CD 210 of re-recordable; Light picker 220, read on the CD 210 data or at CD 210 identifying recording layers; Servomechanism 230 is controlled the operation of above-mentioned light picker 220; Digital signal processor 240, the demodulates information that will read from light picker 220 is certain signal; Impact damper 250 is used for interim storage and carries out the required data of whole signal Processing; Microprocessor 260 is controlled totally to optical recording player; Interface 270 is realized current circuit between above-mentioned microprocessor 260 and the main frame 280.
Above-mentioned CD 210 is the CD of re-recordable behind the record data, such as CD-RW.
After above-mentioned microprocessor 260 energized, receive certain order that above-mentioned main frame 280 sends, each one of control optical recording player carries out play operation and recording operation to CD 210.
The optical recording player that use of the present invention is had a said structure with reference to Fig. 3 carries out the formative method of background to CD 210 and is elaborated below.Fig. 3 is the formatting method embodiment process flow diagram of optical recording player of the present invention.
At first, microprocessor 260 receives background formatting command (below abbreviation " format ") S310 from above-mentioned main frame 280, and above-mentioned then microprocessor 260 judges whether current optical recording player is in " idle state " S320.Here " idle state " is meant not to be connected with main frame 280 and encodes or decode operation, that is to say that optical recording player is in resting state.
At this moment, if optical recording player is in " idle state ", carry out formative zone, promptly the whole formatting object zone of CD 310 will be divided into N part (PART).Above-mentioned part is data area (DA) and spare area several combinations data blocks together such as (SA), preferably by the data block of several 144 packet common combinations.
In addition, whole formatting object zone is divided into N part, and optical recording player formats each several part successively, will be explained below.
At first, to the part 1 S330 that tests in N the part.Above-mentioned check is to search the process whether part 1 exists defective, is that the CRC of the atip information that comprises in the dither signal by CD checks and realizes.
If above-mentioned assay for find defective in above-mentioned 1PART, is then stored corresponding defective data block message S350 in the impact damper 250 of above-mentioned optical recording player.And, utilize canned data in the above-mentioned impact damper 250, above-mentioned part 1 is carried out initialization process S360.Above-mentioned initialization process is a kind of process for realizing that certain information (such as " AA ") write down in each data area (DA) in the above-mentioned 1PART and spare area (SA) initialization, is to be a requisite program in formatting procedure.
And, above-mentioned checkout procedure because be not at existing record carry out under the state of certain initial information (" AA "), but under the state that freely writes down (FREE RECORD), carry out, so speed is very fast.
In addition, carry out defect processing 360 simultaneously in the middle of the above-mentioned initialization.That is, utilize in the above-mentioned impact damper 250 the defective data block message of storage,, the address information recording of this data block to spare area, for the zone that defective does not take place, is write down on this data block " AA " for the zone that defective takes place.
If in checkout procedure, do not find defective S340, just only above-mentioned part 1 is carried out initialization process S380.
Then, according to said method successively to remainder (part 2, the 3rd part ... the N part) formats (S370) (S390).
The invention described above is a N part (PART) with whole formatting object area dividing, then above-mentioned part is tested, utilize the result of check, carry out initialization and defect processing simultaneously, thereby can reduce the operation of light picker, therefore also just shorten the formative time of background, improved stability.
Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense, so be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the distortion of the above embodiment.
Claims (3)
1. the formatting method of an optical recording player is characterized in that comprising the following operational phase:
Phase one is a N part with the formatting object area dividing of whole CD;
Subordinate phase, the check each part mentioned above obtains the relevant information that the defective data piece takes place;
Phase III, utilize above-mentioned defective data block message, carry out initialization and defect processing operation simultaneously to each part mentioned above;
Wherein, the check of above-mentioned subordinate phase is that the CRC inspection of the absolute time information in the forward recess that comprises in the dither signal by CD realizes.
2. the formatting method of optical recording player as claimed in claim 1 is characterized in that: above-mentioned subordinate phase comprises that also the defective data block message that will the check each part mentioned above obtains stores storer into.
3. the formatting method of optical recording player as claimed in claim 1, it is characterized in that: the initialization of above-mentioned phase III and defect processing are to utilize the information of above-mentioned defective data piece, the address information recording of respective data blocks in zone that defective takes place to spare area, is then write down certain initial information in this respective data blocks for the zone that defective does not take place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031508405A CN100365728C (en) | 2003-09-08 | 2003-09-08 | Formatting method for optical recording player |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031508405A CN100365728C (en) | 2003-09-08 | 2003-09-08 | Formatting method for optical recording player |
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| Publication Number | Publication Date |
|---|---|
| CN1595522A CN1595522A (en) | 2005-03-16 |
| CN100365728C true CN100365728C (en) | 2008-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031508405A Expired - Fee Related CN100365728C (en) | 2003-09-08 | 2003-09-08 | Formatting method for optical recording player |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08249659A (en) * | 1995-03-13 | 1996-09-27 | Hitachi Electron Eng Co Ltd | Method for inspecting defect of optical disk |
| CN1274462A (en) * | 1998-07-28 | 2000-11-22 | Lg电子株式会社 | Method and appts. of recording data in optical recording medium |
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2003
- 2003-09-08 CN CNB031508405A patent/CN100365728C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08249659A (en) * | 1995-03-13 | 1996-09-27 | Hitachi Electron Eng Co Ltd | Method for inspecting defect of optical disk |
| CN1274462A (en) * | 1998-07-28 | 2000-11-22 | Lg电子株式会社 | Method and appts. of recording data in optical recording medium |
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| CN1595522A (en) | 2005-03-16 |
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