CN101383175B - Multi-layer information recording medium, reproducing method and recording method - Google Patents

Abstract

A multi-layered information recording medium comprising: a plurality of recording layers; a user data area provided in at least two of the plurality of recording layers for recording user data; and a defect list storing area for storing a defect list. When at least one defective area is detected in the user data area, the defect list is used to manage the at least one defective area. A defect list storing area is provided in only one of the plurality of recording layers.

Description

The reproducting method of multi-layered information recording medium and recording method

The application is to be January 10, application number in 2003 the dividing an application for the patented claim of " multi-layered information recording medium, transcriber, pen recorder, reproducting method and recording method " that be 03805718.2 (PCT/JP03/00181), denomination of invention the applying date.

Technical field

The present invention relates to comprise at least two recording layers multi-layered information recording medium, transcriber, supply pen recorder that this multi-layered information recording medium uses, be used for and be used for recording method in this multi-layered information recording medium recorded information from the transcriber of this multi-layered information recording medium information reproduction.

Background technology

Typical information recording medium with sector strucre is a CD.In recent years, the for example digitizing such as audio data, video data of AV data, in view of the above, demand has the CD than high record density and larger capacity always.It is being practical aspect the increase dish capacity that a plurality of recording layers are provided.For example, through providing two recording layers the capacity of this DVD to be increased about twice for read-only DVD.

Fig. 1 shows the structure of the typical CD media 1 that comprises track 2 and sector 3.On this CD media 1, track 2 with the rotation of spiral set-up mode repeatedly.This track 2 is divided into a large amount of little sectors 3.Roughly the district on the CD media 1 is classified as and introduce district 4, user data area 8 and draw-out area 6.The record that on user data area 8, carries out user data perhaps duplicates.To introduce district 4 and be set to the edge, and, bare headed (not shown) will suitably be gone along track even make that surpassed distance appears in shaven head when bare headed end near user data area 8 with draw-out area 6.Introduce district 4 and comprise that storage is used to visit the dish block of information of CD media 1 desired parameters.Physical sector number (hereinafter is abbreviated as " PSN (s) ") is distributed to sector 3, so that differentiate each sector 3.In addition, will distribute to the sector 3 that is included in the user data area 8 since 0 continuous logic sector number (hereinafter be abbreviated as " LSN (s)), make the higher-level device (not shown) for example main frame differentiate each sector 3.

Fig. 2 shows the principle of reproducing data from the read-only optical disc 30 with two recording layers.The reproduction of the read-only optical disc 30 of Fig. 2 has briefly been described here.Groove is formed on transparent substrate 31 and 32, so that form helical orbit.On the flute surfaces of substrate 31 and 32, adhere to recording layer 33 and 34 respectively, so that covering groove is surperficial.Substrate 31 and 32 is attached to together, so that between recording layer 33 and 34, insert and put the curable resin 35 of printing opacity.Obtain a single read-only optical disc 30 thus.In this manual, for the convenience of describing, in Fig. 2, the recording layer 34 that more approaches incident laser 38 is known as first recording layer 34; And another recording layer 33 is known as second recording layer 33.Regulate the thickness and the composition of first recording layer, make recording layer 34 half incident laser 38 of reflection of winning, and see through incident laser 38 second half.Regulate the thickness and the composition of second recording layer 33, make second recording layer 33 reflect all incident lasers 38.The object lens 37 that are used for convergent laser 38 are shifted to read-only optical disc 30 or away from read-only optical disc 30, are made the focus (beam spot) 36 of laser 38 be positioned on first recording layer 34 or second recording layer 33.

Fig. 3 A, 3B, 3C and 3D show two recording layers 41 that are known as parallel track (parallelpaths) and 42 the track of read-only DVD and reproduce direction and sector number.Fig. 3 A shows the spiral grooves figure of second recording layer 42.Fig. 3 B shows the spiral grooves figure of first recording layer 41.Fig. 3 C shows the reproduction direction in the user data area 8 on being arranged on recording layer 41 and 42.Fig. 3 D shows the sector number of distributing to recording layer 41 and 42.

Now, imagination is when inciding direction on the CD when the rear side of this dish is observed, when the rear side of the disc of Fig. 3 A and 3B is observed along laser, and this read-only DVD coils and turns clockwise.In this case, the interior circumferential periphery of laser from recording layer 41 and 42 moves along track 2.At user data along reproducing shown in Fig. 3 C under the situation that direction reproduces successively, at first from the user data area of first recording layer 41 in circumferentially most peripheral reproduce.Then, from the user data area 8 of second recording layer 42 in circumferentially most peripheral reproduce.Insert and put the user data area 8 of first and second recording layers 41 and 42 by introducing district 4 with draw-out area 6, even make that surpassed distance appears in shaven head, this shaven head also can suitably be gone along track 2.Shown in Fig. 3 D, incrementally distribute the PSN and the LSN of each recording layer 41 and 42 along reproducing direction.Consider to help dish information that PSN need be by 0 beginning.In addition, PSN need be between first and second recording layers 41 and 42 continuous dispensing (for example, the value corresponding to the number of plies can be provided) in the primary importance of each sector number.As LSN, distribute the consecutive numbers that begins by 0 for all customer data district 8 that is included in this CD.That is, in the user data area 8 of first recording layer 41, interior week, the LSN at place was 0, increased one by one towards most peripheral.The number of the LSN of place of interior week of the user data area 8 of second recording layer 42 for obtaining through the maximum LSN increase by 1 of giving first recording layer 41.The LSN of second recording layer 42 also increases towards most peripheral one by one.

Fig. 4 A, 4B, 4C and 4D show two recording layers 43 that are known as that reverse orbit (opposite path) is provided with of read-only DVD and 44 track and reproduction direction and sector number.Fig. 4 A shows the spiral grooves figure of second recording layer 44.Fig. 4 B shows the spiral grooves figure of first recording layer 43.Fig. 4 C shows in the user data area 8 on being arranged on recording layer 43 and 44 and reproduces direction.Fig. 4 D shows the sector number of distributing to recording layer 43 and 44.

Now, imagination is when inciding direction on the CD when the rear side of this dish is observed, when from the rear side observation of the disc of Fig. 4 A and 4B along laser, and this read-only DVD coils and turns clockwise.In this case, the interior circumferential periphery of laser from first recording layer 43, but the periphery from second recording layer inwardly move along track 2 by week.Under the situation of the direction of reproduction shown in Fig. 4 C reproducing user data successively; At first from the user data area 8 of first recording layer 43 in circumferentially most peripheral reproduce, then from the Zhou Jinhang reproduction in of the most peripheral of the user data area 8 of second recording layer 44.Insert and put the user data area 8 of first recording layer 43 by introducing district 4 with mesozone 7, even make that surpassed distance appears in shaven head, this shaven head also can suitably be gone along track 2.Insert and put the user data area 8 of second recording layer 44 by mesozone 7 and draw-out area 6.The function of mesozone 7 is identical with draw-out area 6.Shown in Fig. 4 D; Except since the hand of spiral of the track 2 of second recording layer 44 with the hand of spiral of the track 2 of first recording layer 43 has changed sector number and radiation direction (radial direction) mutually on the contrary, still along the PSN and the LSN that incrementally distribute each recording layer 43 and 44 like the reproduction direction in the above-mentioned parallel track.In the user data area 8 of first recording layer 43, all LSN are 0 in, increase seriatim towards most peripheral.The LSN at the most peripheral place in the user data area 8 of second recording layer 44 is through adding 1 number that obtains for maximum LSN in the user data area 8 of first recording layer 43, and in, increases one by one in week.

Read-only optical disc has been described above.Specifically describe the characteristic of rewritable optical disc now.These characteristics derive from recording operation the requirement of edge (margin) are operated the stricter fact than reproducing.

Fig. 5 A shows the regional layout of typical overwriteable disk 45.Overwriteable disk 45 includes only a recording layer.The introducing district 4 of overwriteable disk 45 comprises dish block of information 10 and OPC (the optimum calibration of power (optimum power calibration) district 11 and defect management 12.Draw-out area 6 comprises another defect management 12.Between introducing district 4 and draw-out area 6, user data area 8 and spare area 13 are set.

10 storages of dish block of information are about being used for the dish information of required parameter of recording/reproducing optical disk data or form.This dish block of information 10 is also contained in the read-only optical disc, but the dish block of information 10 of read-only optical disc does not comprise the information what is important except the format identifier (identifier) that is used to discern CD.On the other hand, in rewritable optical disc, the concrete recommendation of the laser characteristics that storage is used to write down for each the identification width that is produced, for example laser power, pulse width etc.Dish block of information 10 is when the reproduction dish, generally information to be write read-only region wherein.In overwriteable disk 45, as among DVD-ROM or the CD-ROM, in panel surface, forming pit.(exist and the different recording principle of this " pit " recording principle.For example, in CD-RW, be embedded into information with the mode of the curved patterns of groove (being called " swing (wobble) ").)

For the recording power of adjusting laser best is provided with OPC district 11.The storage in dish block of information 10 of dish manufacturer is used for the laser parameter of the recommendation of recording operation.Yet about laser feature rise time or the like of wavelength, laser power for example, dish manufacturer is employed, and to be used for obtaining the laser diode of recommendation different with the laser diode that optical disc apparatus disposes.In addition, even the laser diode of same light disk drive, its laser feature is also owing to the degeneration of the variation of environment temperature or appearance in time changes.Like this, in fact, when being stored in the laser parameter in the block of information 10, the ground change in OPC district 11, carries out test record with reducing on increase ground, so that obtain best recording power.

For defect management, promptly for the sector with another condition good (promptly fully available) replaces wherein can not suitably carrying out the sector in the user data area 8 of recoding/reproduction, be provided with defect management 12 and spare area 13.In can rewriting 650MB phase change disc (being called PD) that single-layer optical disc for example is limited to the ECMA-240 form etc., carry out defect management usually.

Spare area 13 comprises the sector (being called as alternate sector) that is used to replace the defectiveness sector.Be used for replacing the sector of defectiveness sector to be called as alternative sectors.In DVD-RAM, place 13, one of spare areas two positions in the interior week of user data area 8, another is in periphery.In above-mentioned PD, 10 positions spare area 13 is set, and being provided with according to medium of they becomes.In the example of Fig. 5,, only spare area 13 is set in a position of user data area 8 peripheries in order to simplify.

Defect management 12 comprises: dish definition structure (DDS) memory block 20, and it is stored as the form of defect management design, comprises the size and the position of placing spare area 13 of spare area 13; Memory block, defect management sector (DMS) 21, its storage is used for the data of managing defect directorial area 12 self-defects; Defect list (DL) memory block 22, its storage comprises the defect list of defective sector position and alternative sectors position; With subsequent use defect list (subsequent use DL) memory block 23 that when defect list (DL) memory block 22 is unavailable, is used for replacing this defect list (DL) memory block 22.In view of permanance; Many dishes are based on specifications design; Make that circumferential portion has a defect management 12 with outer peripheral portion in each of dish, and each defect management 12 duplicates and store identical content, promptly the defect management 12 of this dish has the copy of four identical contents altogether.

Fig. 5 B shows the data of storing among the DMS21.The data that are stored among the DMS21 are that the DL sector number 30 of representing the sector number of storage defect tabulation is all represented DL sevtor address tabulation 31 of sevtor address with each.In order to simplify, suppose that here each DL memory block 22 only comprises a sector.If when confirming that DL memory block 22 is defective owing to detecting when defect list is upgraded in new defectiveness sector, this defect list is write down in the subsequent use DL memory block of launching so subsequently 23.In this case, upgrade this DL sevtor address tabulation 31, so that represent the sevtor address of this subsequent use DL memory block 23.

Fig. 5 C shows the data that are stored in the DL memory block 22.Be stored in data in the DL memory block 22 and be as the DL identifier 32 of the unique identifier that is used for the defect recognition tabulation be recorded in the defectiveness sector number 33 on the defect list.DL memory block 22 further comprises a plurality of defectives inlet region 34, and each defective inlet region 34 all includes the address of defective sector and the address of alternative sectors.There is n the defective (n is greater than or equal to 3 integer) that is write down in hypothesis now.In this case, defectiveness sector number 33 expression n.

34 storage alternative state 40, defectiveness sevtor address 41 and alternative sectors addresses 42, the first defective inlet region.In other words, single defective inlet region storage is about being used to replace the information of single defectiveness sector process.Alternative state 40 is to represent the mark that whether the defectiveness sector substituted.When having carried out when alternative, settings 0 in alternative state 40.When not substituting, settings 1 in alternative state 40.When settings 1 in alternative state 40, optical disc apparatus is visited defective sector.In this case, even mistake in readout, occurs, also ignore this mistake and comprise this and continue readout in wrong in data.Such process need can be applied to continuous recording or the video that reproduces and the record and the reproduction of audio data.This be because in the reproduction of video and audio frequency owing to the interruption that causes with alternative defectiveness district, spare area far away seems more obvious than the confusion that self causes owing to vicious data.Defectiveness sevtor address 41 comprises the address of confirming as defective sector.Alternative sectors address 42 comprises the address of the sector in the spare area 13, and this sector replaces the defectiveness sector by 41 expressions of defectiveness sevtor address.Address ascending order with the defectiveness sector is provided with n defective inlet region.

As stated, for rewritable optical disc, obtain the data reliability substantially the same with read-only optical disc, defect management is vital.

Although there is the read-only optical disc with a plurality of recording layers, all existing rewritable optical discs all only have single recording layer.The above-mentioned defect management that is used for rewritable optical disc relates to the only management of a recording layer.

If aforesaid defect management is applied to have the CD of a plurality of recording layers simply, will defect management be provided for each recording layer so.For each recording layer carries out defect management separately.When unlatching was used to rewrite the typical record/transcriber (initialization procedure) of CD, this device was sent to defect list in the storer in the device.This is because can the high speed access defect management information, continues with reference to this information at the record of user data with in reproducing.Therefore, when the data recording/reproducing device processing had the CD of a plurality of recording layers, when dish being loaded in this device, this device need read all defect directorial area in all recording layers.Propose a problem like this, make to spend long time at the physical record that begins to coil or before reproducing.In addition, for each recording layer carries out defect management separately, therefore, if used up the limited defect list memory block in certain recording layer, any defect list memory block of other recording layer all can not be used for the recording layer that this is used up so.Propose a problem like this, promptly can not use the defect list memory block effectively.

As used herein, the term " initialization procedure " that is used for CD refers to such process: when data recording/reproducing device is opened, read defect management information etc. at record or before reproducing user data on this CD etc.

Summary of the invention

According to an aspect of the present invention, multi-layered information recording medium comprises: a plurality of recording layers; The user data area that is used for user data that at least two recording layers of a plurality of recording layers, is provided with; With the defect list memory block that is used for the storage defect tabulation, wherein when in user data area, detecting at least one defect area, use this defect list to manage this at least one defect area.

In one embodiment of the invention, this multi-layered information recording medium further comprises the defect list positional information memory block that is used for storage defect list placement information, and this defect list positional information is represented the position of defect list memory block.This defect list positional information memory block can be arranged among of this a plurality of recording layers of predetermined layer as a reference.

In one embodiment of the invention, this reference layer can be to be arranged in of this a plurality of recording layers who reads surperficial preset distance place from the data of this multi-layered information recording medium.

In one embodiment of the invention, this reference layer can be to be arranged in of this a plurality of recording layers who reads surperficial bee-line place from the data of this multi-layered information recording medium.

In one embodiment of the invention, this reference layer can be to be arranged in of this a plurality of recording layers who reads surperficial longest distance place from the data of this multi-layered information recording medium.

The position of detected at least one defect area of address (intralayer address) expression in the layer of the number of plies that in one embodiment of the invention, defect list can be through being used for discerning each other these a plurality of recording layers and each position that is used to be illustrated in a plurality of recording layers.

In one embodiment of the invention; This defect list memory block can be set in one of a plurality of recording layers, and the position of defect list memory block is represented in the address in the layer of the number of plies that the defect list positional information can be through these a plurality of recording layers that are used for being distinguished from each other and each position that is used to be illustrated in a plurality of recording layers.

In one embodiment of the invention, this multi-layered information recording medium may further include the spare area that comprises at least one alternate area.When in user data area, detecting at least one defect area, can use this at least one alternate area to replace this at least one defect area.

In one embodiment of the invention; When replacing defect area with the alternate area, the position of defect area and the position of alternate area are represented in the address in each number of plies that this defect list can be through these a plurality of recording layers that are used for being distinguished from each other and each each layer of position that is used to be illustrated in a plurality of recording layers.

In one embodiment of the invention, the defect list memory block can be arranged in one of said a plurality of recording layers.This multi-layered information recording medium may further include additional defect list memory block, is used for storing and the identical defect list of defect list content that is stored in said defect list memory block.Should additional defect list memory block can be arranged in another of this a plurality of recording layers.

In one embodiment of the invention, this multi-layered information recording medium may further include the first defect list positional information that is used for position, storage representation defect list memory block the first defect list positional information memory block and the second defect list positional information memory block that is used for the second defect list positional information of the said additional defect list storage of storage representation zone position.This first defect list positional information memory block can be arranged in the recording layer identical with the recording layer that the defect list memory block is set therein, and the second defect list positional information memory block can be arranged in the recording layer identical with the recording layer that this additional defect list storage district is set therein.

In first embodiment of the present invention, the recording layer that the defect list memory block is set therein can comprise first defect management that comprises the defect list memory block and the first defect list positional information memory block.The recording layer that additional defect list storage district can be set therein comprises second defect management that comprises the additional defect list storage district and the second defect list positional information memory block.Can logical address be distributed to user data area.Distribute the district of minimum logic address user data field to be arranged in the recording layer that the defect list memory block can be set.Can the district of the user data area that distributes maximum logical address be arranged in the recording layer that additional defect list storage district is set.First defect management can be with adjacent to the district of its distribution minimum logic address.Second defect management can be with adjacent to the district of its distribution maximum logical address.

According to another technical scheme of the present invention, multi-layered information recording medium comprises: a plurality of recording layers; Be arranged among at least two of this a plurality of recording layers, be used for the user data area of user data; Be arranged on the defect management at least one of said a plurality of recording layers; With the subsequent use defect list memory block that is arranged in another of said a plurality of recording layers.This defect management comprises a plurality of first defect list memory blocks that are used for the storage defect tabulation, wherein when in user data area, detecting at least one defect area, uses this defect list to manage this at least one defect area.Subsequent use defect list memory block comprises a plurality of second defect list memory blocks that when these a plurality of first defect list memory blocks all can not be used, can be used for replacing these a plurality of first defect list memory blocks.

In one embodiment of the invention, this defect management and subsequent use defect list memory block can be arranged in the substantially the same radial location of this multi-layered information recording medium.

In one embodiment of the invention; This defect management may further include the defect list positional information memory block that is used for storage defect list placement information, and this defect list positional information is illustrated in the position in the district of storage defect tabulation in a plurality of first defect list memory blocks and a plurality of second defect list memory block.

According to another technical scheme of the present invention, a kind of device that is used for reproducing the information that is recorded in multi-layered information recording medium is provided.This multi-layered information recording medium comprises: a plurality of recording layers; Be arranged among at least two of this a plurality of recording layers, be used for the user data area of user data; With the defect list memory block that is used for the storage defect tabulation, wherein when in user data area, detecting at least one defect area, use this defect list to manage this at least one defect area.This device comprises: the bare headed part that can learn the information of reading and recording this multi-layered information recording medium from this multi-layered information recording medium one sidelight; Use this shaven head partly to control the control section of defect management with being used to.This defect management comprises step: reproduction is stored in the defect list in the defect list memory block; With reproduce the user data in the user data district based on the defect list that reproduced.

In one embodiment of the invention; This multi-layered information recording medium may further include: the defect list positional information memory block that is used for the defect list positional information of position, storage representation defect list memory block; Defect list positional information memory block wherein is set in one of a plurality of recording layers of confirming as reference layer in advance, and this defect management further comprises the position that is stored in this defect list memory block of defect list positional information identification in the defect list positional information memory block through reproduction.

In one embodiment of the invention; This multi-layered information recording medium may further include: the spare area that comprises at least one alternate area; Wherein when in user data area, detecting at least one defect area, can use this at least one alternate area to replace this at least one defect area.The defect area that this defect list can be represented to be present in the user data area is comprised in the alternate area replacement in the spare area.The step of reproducing user data can comprise from the alternate area of being represented by defect list rather than the defect area reproducing user data from being represented by defect list.

Another technical scheme according to the present invention provides a kind of device that is used in the multi-layered information recording medium recorded information.This multi-layered information recording medium comprises: a plurality of recording layers; Be arranged among at least two of this a plurality of recording layers, be used for the user data area of user data; With the defect list memory block that is used for the storage defect tabulation, wherein when in user data area, detecting at least one defect area, use this defect list to manage this at least one defect area.This device comprises: can be from the bare headed part of this multi-layered information recording medium one side optical recording of information this multi-layered information recording medium; Use this shaven head partly to control the control section of defect management with being used to.This defect management comprises step: in user data area, in the process of user data, confirm in user data area, whether there is defect area; With when confirming in user data area, to have defect area, upgrade this defect list so that manage this defect area.

In one embodiment of the invention, this multi-layered information recording medium may further include the additional defect list storage district that when the defect list memory block can not be used, can be used for replacing the defect list memory block.This defect management may further include when the defect list memory block can not be used, to additional defect list storage district record be stored in the defect list memory block in the identical defect list of defect list content.

In one embodiment of the invention, this multi-layered information recording medium may further include: the defect list positional information memory block that is used for the defect list positional information of storage representation defect list position.This defect list positional information memory block can be arranged in one of these a plurality of recording layers of confirming as reference layer in advance.This defect management may further include: when using additional defect list storage district to replace the defect list memory block, upgrade this defect list positional information, make this defect list positional information represent this additional defect list storage district.

In one embodiment of the invention, this multi-layered information recording medium may further include: be arranged on the defect management in one of these a plurality of recording layers; With the subsequent use defect list memory block that is provided with in another of this a plurality of recording layers.This defect management can comprise a plurality of defect lists memory block; This subsequent use defect list memory block comprises a plurality of additional defect list storage district; Said defect list memory block is one of this a plurality of defect lists memory block; This additional defect list storage district is one of said a plurality of additional defect list storage district, when said a plurality of defect lists memory block is all unavailable, uses said additional defect list storage district to replace said defect list memory block.

In one embodiment of the invention, said defect list memory block can be set in one of said a plurality of recording layers, this additional defect list storage district can be set in the recording layer identical with the recording layer that the defect list memory block is set.

In one embodiment of the invention, said defect list memory block can be set in one of said a plurality of recording layers, can in another of said a plurality of recording layers, said additional defect list storage district be set.

In one embodiment of the invention; This multi-layered information recording medium may further include: the spare area that comprises at least one alternate area; Wherein when in user data area, detecting at least one defect area, can use this at least one alternate area to replace said at least one defect area.Said defect management may further include: the alternate area with being included in the spare area replaces being present in the defect area in the user data area.

According to another technical scheme of the present invention, a kind of method that is used for reproducing the information that is recorded in multi-layered information recording medium is provided.This multi-layered information recording medium comprises: a plurality of recording layers; Be arranged among at least two of this a plurality of recording layers, be used for the user data area of user data; With the defect list memory block that is used for the storage defect tabulation, wherein when in user data area, detecting at least one defect area, use this defect list to manage this at least one defect area.The method comprising the steps of: reproduction is stored in the defect list in the defect list memory block; Be recorded in the user data in the user data area with reproducing based on the defect list that reproduces.

In one embodiment of the invention, this multi-layered information recording medium may further include: the defect list positional information memory block that is used for the defect list positional information of position, storage representation defect list memory block.This defect list positional information memory block can be arranged in one of these a plurality of recording layers of confirming as reference layer in advance.This method may further include the position that is stored in the defect list positional information defect recognition list storage district in this defect list positional information memory block through reproduction.

In one embodiment of the invention; This multi-layered information recording medium may further include: the spare area that comprises at least one alternate area; Wherein when in user data area, detecting at least one defect area, can use this at least one alternate area to replace this at least one defect area.This defect list can be represented to replace being present in the defect area in the user data area with the alternate area that is included in the spare area.The step of reproducing user data can comprise: from alternate area rather than the defect area reproducing user data of being represented by defect list from being represented by defect list.

According to another technical scheme of the present invention, provide a kind of and be used in the multi-layered information recording medium method for recording information.This multi-layered information recording medium can comprise: a plurality of recording layers; Be arranged among at least two of this a plurality of recording layers, be used for the user data area of user data; With the defect list memory block that is used for the storage defect tabulation, wherein when in user data area, detecting at least one defect area, use this defect list to manage this at least one defect area.The method comprising the steps of: in user data area, in the process of user data, confirm in user data area, whether there is defect area; With when confirming in user data area, to have defect area, upgrade this defect list so that manage this defect area.

In one embodiment of the invention, this multi-layered information recording medium may further include the additional defect list storage district that when the defect list memory block can not be used, can be used for replacing the defect list memory block.This method may further include: when the defect list memory block can not be used, to additional defect list storage district record be stored in the defect list memory block in the identical defect list of defect list content.

In one embodiment of the invention, this multi-layered information recording medium may further include: the defect list positional information memory block that is used for the defect list positional information of storage representation defect list position.This defect list positional information memory block can be arranged in one of these a plurality of recording layers of confirming as reference layer in advance.This method may further include: when using additional defect list storage district to replace the defect list memory block, upgrade this defect list positional information, make this defect list positional information represent this additional defect list storage district.

In one embodiment of the invention, this multi-layered information recording medium may further include: be arranged on the defect management in one of these a plurality of recording layers; With the subsequent use defect list memory block that is provided with in another of this a plurality of recording layers.This defect management can comprise a plurality of defect lists memory block.This subsequent use defect list memory block comprises a plurality of additional defect list storage district.Said defect list memory block can be one of this a plurality of defect lists memory block.This additional defect list storage district is one of said a plurality of additional defect list storage district.When said a plurality of defect lists memory block is all unavailable, can use said additional defect list storage district to replace said defect list memory block.

In one embodiment of the invention, said defect list memory block can be set in one of said a plurality of recording layers, additional defect list storage district can be set in the recording layer identical with the recording layer that the defect list memory block is set therein.

In one embodiment of the invention, said defect list memory block can be set in one of said a plurality of recording layers, can in another of said a plurality of recording layers, additional defect list storage district be set.

In one embodiment of the invention; This multi-layered information recording medium may further include: the spare area that comprises at least one alternate area; Wherein when in user data area, detecting at least one defect area, can use this at least one alternate area to replace said at least one defect area.This method may further include with the alternate area that is included in the spare area and replaces being present in the defect area in the user data area.

Like this, the present invention described herein can provide a kind of advantage of defect management method, and this method can shorten and in the CD initialization procedure, reads required time of defect management and managing defective area effectively.

After the detailed description with reference to accompanying drawing below reading and understanding, to those skilled in the art, of the present invention these will become obvious with other advantage.

Description of drawings

Fig. 1 is track and the figure of sector of expression in the CD.

Fig. 2 is the reproduction schematic diagram that expression comprises the CD of two recording layers.

Fig. 3 A is the figure of the groove figure of second recording layer among the expression parallel track DVD.

Fig. 3 B is the figure of the groove figure of first recording layer among the expression parallel track DVD.

Fig. 3 C is the figure of the reproduction direction of expression parallel track DVD.

Fig. 3 D is the figure that sector number distributes among the expression parallel track DVD.

Fig. 4 A is the figure of the groove figure of second recording layer among the expression reverse orbit DVD.

Fig. 4 B is the figure of the groove figure of first recording layer among the expression reverse orbit DVD.

Fig. 4 C is the figure of the reproduction direction of expression reverse orbit DVD.

Fig. 4 D is the figure that sector number distributes among the expression reverse orbit DVD.

Fig. 5 A is the figure of the zone position among the expression DVD-RAM.

Fig. 5 B is the figure of the data structure of the DMS shown in the presentation graphs 5A.

Fig. 5 C is the figure of the data structure of the DL shown in the presentation graphs 5A.

Fig. 6 is the figure of expression according to the zone position in the multi-layered information recording medium of the embodiment of the invention 1.

Fig. 7 is the figure of the data structure of first defect management in the expression embodiment of the invention 1.

Fig. 8 is the figure of the data structure of the first subsequent use DL memory block in the expression embodiment of the invention 1.

Fig. 9 is the figure that concerns between the first subsequent use DL memory block and the DDS district of expression in the embodiment of the invention 1.

Figure 10 A is the figure of first defect management and position, the first subsequent use DL memory block in the expression embodiment of the invention 1.

Figure 10 B is the figure of first defect management and position, the first subsequent use DL memory block in the expression embodiment of the invention 1.

Figure 10 C is the figure of first defect management and position, the first subsequent use DL memory block in the expression embodiment of the invention 1.

Figure 11 is the figure of expression according to the zone position in the multi-layered information recording medium of the embodiment of the invention 2.

Figure 12 is the figure of the data structure of first defect management in the expression embodiment of the invention 2.

Figure 13 is the figure of expression according to the data recording/reproducing device of the embodiment of the invention 3.

Figure 14 is used for explaining the process flow diagram that obtains the program of defect management information in the embodiment of the invention 3.

Figure 15 is used to the process flow diagram according to the sector playback program of the embodiment of the invention 3 is described, has wherein considered to substitute.

Figure 16 is the process flow diagram that is used for explaining the conversion of the embodiment of the invention 3 from LSN to PSN.

Figure 17 is used for explaining that the embodiment of the invention 3 upgrades the process flow diagram of the program of defect management informations.

Figure 18 is used to explain the process flow diagram according to the logging program of the embodiment of the invention 3, has wherein considered to substitute.

Figure 19 is the figure of expression according to the zone position of the multi-layered information recording medium of the embodiment of the invention 4.

Figure 20 is the figure of expression according to the data structure of first defect management in the multi-layered information recording medium of the embodiment of the invention 4.

Figure 21 is the figure of expression according to the zone position of the multi-layered information recording medium of the embodiment of the invention 5.

Figure 22 is the figure of expression according to the zone position of the multi-layered information recording medium of the embodiment of the invention 6.

Embodiment

(embodiment 1)

Below with reference to accompanying drawing the multi-layered information recording medium according to the embodiment of the invention 1 is described.Here used multi-layered information recording medium refers to the information recording carrier that comprises two recording layers at least.

Fig. 6 is the figure of expression according to the multi-layered information recording medium 600 of the embodiment of the invention 1.This multi-layered information recording medium 600 comprises two recording layers 51 and 52.This multi-layered information recording medium 600 comprises the user data area 602 that is used for user data.This user data area 602 is across the border between two recording layers 51 and 52.In embodiments of the invention 1, last recording layer (51) shown in Figure 6 is called as first recording layer, and following recording layer (52) is called as second recording layer.

First recording layer 51 is positioned at the preset distance place, surface (data are read the surface) that leaves through the multi-layered information recording medium 600 of its sense data.First recording layer 51 is called as reference layer.This preset distance equals to read the distance of surface to this recording layer from the optical disc data that only comprises a recording layer.In a plurality of recording layers, confirm reference layer in advance.

Along the recoding/reproduction direction of this multi-layered information recording medium 600, from interior thoughtful periphery, this first recording layer 51 comprise introduce district 601, as first user data area 15 and the mesozone 603 of user data area 602 parts.Along the recoding/reproduction direction of this multi-layered information recording medium 600, from outside thoughtful in week, this second recording layer 52 comprises mesozone 603, as second user data area 16 and the draw-out area 604 of user data area 602 parts.

The control data zone 610 that the introducing district 601 that in first recording layer 51 (reference layer), is provided with comprises the control information that is used to store multi-layered information recording medium 600 be used to write down about first defect management 611 (DMA1) of the defect management information of defect area and second defect management 612 (DMA2) (defect management information comprise coil definition structure data (disc definitionstructure data), defect list etc.).The mesozone 603 of first recording layer 51 comprises the 3rd defect management 613 (DMA3) and the 4th defect management 614 (DMA4).Each all stores identical defect management information first defect management 611, second defect management 612, the 3rd defect management 613 and the 4th defect management 614.This is because through the identical defect management information of duplicated record in a plurality of districts on interior week of multi-layered information recording medium 600 and the periphery, has improved the reliability of defect management information.The defect area here is a defective sector.

The mesozone 603 of second recording layer 52 comprises the 3rd subsequent use defect list (DL) district 622 (subsequent use DL3) and the 4th subsequent use DL memory block 623 (subsequent use DL4) that is used to store subsequent use defect list.When causing DMA3 no longer can suitably write down (unavailable), can use the 3rd subsequent use DL memory block 622 (subsequent use DL3) to replace the 3rd defect management 613 (DMA3) of first recording layer 51 owing to degeneration etc.When causing DMA4 no longer can suitably write down (unavailable), can use the 4th subsequent use DL memory block 623 (subsequent use DL4) to replace the 4th defect management 613 (DMA4) owing to degeneration etc.Draw-out area 604 comprises the first subsequent use DL memory block 620 (subsequent use DL1) and the second subsequent use DL memory block 621 (subsequent use DL2) that is used to store subsequent use defect list.When causing DMA1 no longer can suitably write down (unavailable), can use the first subsequent use DL memory block 620 (subsequent use DL1) to replace first defect management 611 (DMA1) of first recording layer 51 owing to degeneration etc.When causing DMA2 no longer can suitably write down (unavailable), can use the second subsequent use DL memory block 621 (subsequent use DL2) to replace second defect management 612 (DMA2) of first recording layer 51 owing to degeneration etc.

Hypothesis is as shown in Figure 6 now, and defect area A630 is present in first user data area 15, and defect area B631 is present in second user data area 16.Although partly described the CD (Fig. 5 A) that comprises spare area 13 in the description of background technology, the multi-layered information recording medium 600 of embodiment 1 does not comprise this spare area.Therefore, there are not defect area A630 and defect area B631 to be replaced by the spare area.

With reference to figure 7, the data structure of first defect management 611 (DMA1) is described below.Notice that each all stores identical defect management information first defect management 611 (DMA1), second defect management 612 (DMA2), the 3rd defect management 613 (DMA3) and the 4th defect management 614 (DMA4).Here, first defect management 611 (DMA1) is described.

First defect management 611 (DMA1) of first recording layer 51 (reference layer) comprises dish definition structure (DDS) district 700 (DDS) and a plurality of defect list (DL) memory block.In embodiment 1, first defect management 611 (DMA1) comprises a DL memory block 701, the 2nd DL memory block 702, the 3rd DL memory block 703 and the 4th DL memory block 704.Be not to use all these DL memory blocks simultaneously.Use any DL memory block.In example shown in Figure 7, a DL memory block 701 is defect areas, uses the 2nd DL memory block 702.Do not use the 3rd DL memory block 703 and the 4th DL memory block 704.The 2nd DL memory block 702 storage defects tabulation (DL) 709.When in user data area 602, detecting at least one defect area, use defect list 709 to manage detected defect area.Defect list 709 is included in the defect area (one or more) of detection in the user data area 602 and the positional information of their alternate area.DDS district 700 is as the defect list positional information memory block that is used for the defect list positional information of position, storage representation DL memory block (for example the 2nd DL memory block 702 of Fig. 7), wherein this DL storage area stores defect list 709.DDS district 700 goes back the information of storage representation defect confirmation state etc.If, use the 3rd DL memory block 703 so because the write operation that repeats etc. cause the 2nd DL memory block 702 defective to occur.

DDS district 700 comprise the DDS identifier 710 that is used for discerning DDS, expression at present use at a plurality of recording layers and DL that comprise the DL memory block begin the sector number of plies 711 (number of plies can be allow to be distinguished from each other any information of a plurality of recording layers), use the DL of the position, DL memory block that sector number representes in recording layer, to use at present to begin sector number 712 and be used to store spare area size field 713 about the spare area dimension information, wherein sector number is unique discernible in the recording layer.DL begins the sector number of plies 711 and begins sector number district 712 with DL and comprise the defect list positional information.Because this multi-layered information recording medium 600 do not comprise the spare area, therefore settings 0 in spare area size field 713.Spare area size field 713 can comprise the record number of plies or depend on a plurality of sizes of position, spare area.For easy, hypothesis is when this multi-layered information recording medium 600 disposes the spare area here, and setting has the spare area by the size of spare area size field 713 appointments in interior week of each recording layer and periphery.

Defect list 709 comprises DL head (header) 720 and two strip defect entry datas.DL header area 720 comprises the DL identifier 731 that is used for defect recognition tabulation, be used to represent to rewrite defect list multiplicity DL more New count 732 and the being used to DL that representes to be stored in the defective inlet number in DL head 720 back district enter the mouth several 733.In example shown in Figure 7, write down two strip defect entry datas and be defective inlet A721 and defective inlet B722, therefore, DL enters the mouth and several 733 representes two.

Defective inlet A721 comprises that alternative state mark 734, the defective sector number of plies 735, defective sector are several 736, the alternative sectors number of plies 737 and alternative sectors several 738.Equally, defective inlet B722 comprise that alternative state mark 739, the defective sector number of plies 740, defective sector are several 741, the alternative sectors number of plies 742 and alternative sectors several 743.Below description is included in the data among the defective inlet A721.Alternative state mark 734 is whether to represent defect area by the alternative mark in spare area, and when not substituting, representes to be worth 1.In embodiment 1, in multi-layered information recording medium 600, do not distribute the spare area.Therefore, expression is set and does not have alternative value 1 in alternative state mark 734.

The defective sector number of plies 735 is illustrated in the number of plies of the recording layer that wherein detects defect area.The alternative sectors number of plies 737 is illustrated in the number of plies of the recording layer that the alternate area wherein is set.These numbers of plies are to allow to distinguish each other any information of a plurality of recording layers.Use this defective inlet A721 to come managing defective area A630 (Fig. 6).Use defective inlet B722 to come managing defective area B631 (Fig. 6).In this case, for example, the value 1 of expression first recording layer 51 is set in the defective sector number of plies 735, and the value 2 of expression second recording layer 52 is set in the defective sector number of plies 740.Defective sector several 736 is represented discre values, in detecting the recording layer of defect area, confirms the position of defect area thus uniquely.For example, sector number is the value that the interior circumferential periphery from multi-layered information recording medium 600 increases one by one.

Even the sector number of any sector in first recording layer 51 is the two's complement (two ' scomplement) of placing the sector number of corresponding sector in second recording layer 52 of sector with the same radius position, also as the reverse orbit of DVD-ROM, satisfy above-mentioned condition.For example, consider to represent physical sector number (PSN), and the PSN of first recording layer 51 is in 0000000h (value that " h " expression is represented by sexadecimal number) in the scope of OFFFFFFh with 28 bit formats.When the PSN of certain sector in first recording layer 51 was 0123450h, the PSN of corresponding sector was FEDCBAFh in second recording layer 52 of same radius position.In this case, the highest significant position of the PSN of ground floor is constant to be 0, and the highest significant position of the PSN of the second layer is constant to be F.Like this, can use this most important position to represent the number of plies.

The value of the position that can discern the district that replaces defect area uniquely is set in each alternative sectors number of plies 737 and alternative sectors several 738 equally.Note, in embodiment 1,, therefore do not substitute owing to there is not the spare area.Therefore, in each alternative sectors number of plies 737 and 742, be provided with 0, and in each alternative sectors several 738 and 743,00000000h be set.

If in each first recording layer 51 and second recording layer 52, defect management (DMA) is set independently, need data recording/reproducing device to read defect management information so from aforesaid each recording layer.Yet, as stated, can be according to the multi-layered information recording medium 600 of the embodiment of the invention 1 through only reading the defect management information that defect management information obtains all recording layers from reference layer.Therefore, can carry out the initialization procedure of multi-layered information recording medium 600 at short notice simply.

In this multi-layered information recording medium 600, with the defect area of all recording layers of uniform way management.Therefore, and compare, can more effectively use the DL memory block for each recording layer managing defective area.For example, suppose that CD comprises two recording layers, these two recording layers comprise the maximum sum of 1000 sectors, are the defect area of each recording layer management appearance.In this case, when in each recording layer, individually during store defect management information, need comprising the DL memory block of the defective inlet of maximum 1000 sectors for every layer of configuration.This is because need to handle uneven situation, makes in first recording layer 51, to have 950 defective sectors, and in second recording layer 52, does not have defect area.On the other hand; In multi-layered information recording medium 600 according to the embodiment of the invention 1; Utilize the DL memory block with the defect area in all recording layers of uniform way management; Said DL memory block can comprise the defective inlet of maximum 1000 sectors, therefore, can reduce the overall dimensions of all DL memory blocks.

Be included in the first subsequent use DL memory block 620 (subsequent use DL1) in second recording layer 52 below with reference to Fig. 8 description, this first subsequent use DL memory block 620 (subsequent use DL1) comprises a plurality of DL memory block.In multi-layered information recording medium 600 according to the embodiment of the invention 1; The first subsequent use DL memory block 620 (subsequent use DL1) comprises four DL memory blocks; I.e. the 5th DL memory block 705, the 6th DL memory block 706, the 7th DL memory block 707 and the 8th DL memory block 708, each all is not used.All DL memory blocks defectiveness and can not use the time all when confirming to be included in first defect management 611 (DMA1) uses the DL memory block that is included in the first subsequent use DL memory block 620 (subsequent use DL1) to substitute and is included in the DL memory block in first defect management 611 (DMA1).To be stored in the identical defect list of defect list content in being stored in the DL memory block that is included in first defect management 611 (DMA1) in the DL memory block that is included in the first subsequent use DL memory block 620 (subsequent use DL1).

The same with the first subsequent use DL memory block 620 (subsequent use DL1), each all comprises a plurality of DL memory block the second subsequent use DL memory block 621 (subsequent use DL2), the 3rd subsequent use DL memory block 622 (subsequent use DL3) and the 4th subsequent use DL memory block 623 (subsequent use DL4).When confirming to be included in all the DL memory block defectiveness in second defect management 612 (DMA2) and can not use, just substitute them with the DL memory block that is included in the second subsequent use DL memory block 621 (subsequent use DL2).When confirming to be included in all the DL memory block defectiveness in the 3rd defect management 613 (DMA3) and can not use, just substitute them with the DL memory block that is included in the 3rd subsequent use DL memory block 622 (subsequent use DL3).When confirming to be included in all the DL memory block defectiveness in the 4th defect management 614 (DMA4) and can not use, just substitute them with the DL memory block that is included in the 4th subsequent use DL memory block 623 (subsequent use DL4).

Under above-mentioned situation, when first defect management 611 (DMA1) is unavailable, use the first subsequent use DL memory block 620 (subsequent use DL1).What can select is for example can use other subsequent use DL memory block, for example second subsequent use DL memory block 621 etc.

Fig. 9 shows the example that uses the first subsequent use DL memory block 620 (subsequent use DL1) in second recording layer 52.In the example of Fig. 9, confirm four DL memory block defectiveness in first defect management 611 (DMA1).In this case, recording defect tabulation in the DL memory block of the first subsequent use DL memory block 620 in being included in second recording layer 52.As shown in Figure 9, when the 5th DL memory block 705 also defectiveness, this defect list 709 (Fig. 7) of record in the 6th DL memory block 706.In this case, begin to be provided with in the sector number of plies 711 expression at the DL in DDS district 700 and be included in the value 2 that use the DL memory block in second recording layer 52.Begin in the sector number 712 sector number of the starting position of storage the 6th DL memory block 706 at DL.

As stated, in the multi-layered information recording medium 600 according to the embodiment of the invention 1, the recording layer except reference layer comprises subsequent use DL memory block.Therefore, unavailable even the DL memory block in the reference layer becomes, also can use subsequent use DL memory block to keep the reliability of defect management information.Specifically, the reliability of recording medium is degenerated owing to the write operation that repeats probably, and should technology be very practical for the reliability of improving recording medium.Note; In embodiment 1; These memory blocks that use in order with the 5th DL memory block 705, the 6th DL memory block 706, the 7th DL memory block 707 and the 8th DL memory block 708; Yet, when in second recording layer 52 in multi-layered information recording medium 600 outer thoughtful during the Zhou Jilu data, these districts can use in order by the descending from the 8th DL memory block 708.

Then the relation between the radial location of radial location and the subsequent use DL memory block in second recording layer 52 of the defect management in first recording layer 51 (reference layer) is described with reference to figure 10A and 10B.Figure 10 A is that expression is according to the enlarged drawing of introducing the position of district 601, mesozone 603 and draw-out area 604 in the multi-layered information recording medium 600 of the embodiment of the invention 1.Hypothesis is used the first subsequent use DL memory block 620 (subsequent use DL) now.In this case, storage defect tabulation in the first subsequent use DL memory block 620 (subsequent use DL1), this defect list begins sector number 712 expressions by the DL in DDS district 700.Ideally, the first subsequent use DL memory block 620 (subsequent use DL1) and first defect management 611 (DMA1) are positioned on the substantially the same radial location.If like this, recording/reproducing head only need move very little distance at radial direction.Like this, shown in Figure 10 A, ideally, the 5th DL memory block 705 in the DL memory block 701 in first defect management 611 (DMA1) and the first subsequent use DL memory block 620 (subsequent use DL1) is positioned on the substantially the same radial location.This is because when the content of in the initialization procedure of multi-layered information recording medium 600, reading first defect management 611 (DMA1) and according to DDS district 700 when definite defect lists are stored in the 5th DL memory block 705 of the first subsequent use DL memory block 620 (subsequent use DL1), has substantially the same radial location and makes it can this district of fast access.Yet, error etc. can appear when first recording layer 51 in manufacturing step and second recording layer 52 are attached to a time-out, and make it be difficult to settle the first subsequent use DL memory block 620 (subsequent use DL1) and first defect management 611 (DMA1) thus in identical radial location.As a result, shown in Figure 10 B, first recording layer 51 has departed from second recording layer 52 a little.In Figure 10 B, first defect management 611 (DMA1) in first recording layer 51 has departed from the first subsequent use DL memory block 620 (subsequent use DL1) in second recording layer 52 at radial direction.The amplitude that departs from is called the error of adhering to of CD manufacturing process.

The work that consideration is used to write down and reproduce the data recording/reproducing device of multi-layered information recording medium 600 is when focus is clipped between first recording layer 51 and second recording layer 52, owing to error appears in the out of true of lens position control, the off-centre of CD etc.Therefore, based on the precision of adhering to of recording layer in the CD manufacturing process shown in Figure 10 B, the error of radial location is admissible in preset range between first recording layer 51 and second recording layer 52.

In addition, for the relation of the position between defect management and the subsequent use DL memory block,, preferably has less distance between the DL memory block in DDS district in the defect management and the corresponding subsequent use DL memory block in view of the access time.For example, as with shown in Figure 10 A Figure 10 C relatively, inwardly squint in week employed district in subsequent use DL memory block each the DL memory block in the subsequent use DL memory block.

As stated; Defect management in reference layer (DMA [m=1; 2,3,4]) and the subsequent use DL memory block (subsequent use DLm) in the recording layer except reference layer when being positioned at substantially the same radial location; Even defect list is stored in the subsequent use DL memory block (subsequent use DLm), also can visit defect list at short notice.

Multi-layered information recording medium 600 according to the embodiment of the invention 1 has so far been described.

As stated, in according to multi-layered information recording medium 600 embodiment of the invention 1, that comprise a plurality of recording layers, storage is about the defect management information of all recording layers in single recording layer.Therefore, can be more simply and read defect management information apace.

In the multi-layered information recording medium 600 according to the embodiment of the invention 1, storage is about all defect management information of a plurality of recording layers in reference layer.Therefore, even a large amount of defect areas is present in the recording layer thick and fast, also can use the defective inlet region effectively.

In multi-layered information recording medium 600, subsequent use DL memory block is set in the recording layer except reference layer according to the embodiment of the invention 1.Therefore, can improve the reliability of the defect management information of the defective that causes owing to the dielectric material degeneration effectively.

In multi-layered information recording medium 600, subsequent use DL memory block is placed in the radial location predictive error scope of the defect management in reference layer according to the embodiment of the invention 1.Therefore, can shorten and after reading the DDS district, read the needed access time of subsequent use DL memory block.

Note; Embodiment 1 shows the reverse orbit CD; Although can manage the parallel track dish that writes down and reproduce from interior circumferential periphery at all recording layers equally; But in the reverse orbit CD, from the interior circumferential periphery of first recording layer 51 with from inside Zhou Jinhang record of the periphery of second recording layer 52 and reproduction.Specifically do not limit the setting of recording layer, as long as defect management and subsequent use DL memory block are close to each other.Therefore, according to the difference of record between reverse orbit dish and the parallel track disk and reproduction direction, can regulate above-mentioned setting a little.For example, in the reverse orbit dish, inwardly week is visited second recording layer from periphery.Therefore, can the subsequent use DL memory block in second recording layer be placed on than is arranged in defect management on week more near the position in interior week.

Notice that have at least at multi-layered information recording medium under the situation of three recording layers, this multi-layered information recording medium can store DL storage area management information so that the state of DL memory block in the managing defect directorial area and subsequent use DL memory block.The example of DL storage area management information is to make settings 0 when not using this DL memory block, settings 1 when using this DL memory block, and when the defectiveness of definite DL memory block settings 2.Through this information that is used to manage each DL memory block of storage in the DDS district, can manage these DL memory blocks effectively.

Notice that although reference layer is not limited to this and can be well-determined any recording layer under pre-defined rule, in embodiment 1, this reference layer is the last recording layer of a plurality of recording layers among the figure.For example, reference layer can be to be positioned at the recording layer of reading the shortest position of surface distance from the data of multi-layered information recording medium in the several record layers, perhaps can be to be positioned at from these data to read the recording layer of the longest position of surface distance.

Note,, in embodiment 1, described multi-layered information recording medium 600 and comprised two recording layers although information recording carrier can comprise more recording layer (at least 3).In multi-layered information recording medium arbitrarily, in any recording layer, defect management is set, and subsequent use DL memory block is set in other recording layer.

(embodiment 2)

Multi-layered information recording medium according to the embodiment of the invention 2 is described with reference to the drawings below.

Figure 11 is the figure of expression according to the multi-layered information recording medium 800 of the embodiment of the invention 2.The multi-layered information recording medium 800 of embodiment 2 comprises first recording layer 53 and second recording layer 54.In first recording layer 53 and second recording layer 54, defect management and subsequent use DL memory block are set with the mode that is similar to first recording layer 51 shown in the embodiment 1 and second recording layer 52.Multi-layered information recording medium 800 is with the difference of the multi-layered information recording medium 600 of embodiment 1; In multi-layered information recording medium 800; First recording layer 53 comprises head spare area 1101 (head spare area) and middle spare area 1102, the second recording layers 54 comprise middle spare area 1102 ' and spare area, end 1103.Yet, can suitably confirm the size of these spare areas, for simply, suppose that all spare areas all have identical size (this size is represented (Figure 12) with spare area size 713).Data field 1100 is the districts that comprise user data area 602 and above-mentioned spare area.Multi-layered information recording medium 800 and multi-layered information recording medium 600 different character will be described below.

Head spare area 1101, middle spare area 1102, middle spare area 1102 ' comprise the alternate area with spare area, end 1103.When in user data area 602, detecting defect area, can use the alternate area to replace defect area.Here defect area is defective sector.Each is the defect area that wherein can not correctly write down with reproducing user data for defect area A1110 and defect area B1112.Alternate area A1111 with spare area 1102 in the middle of comprising replaces defect area A1110.As a result, recorded among the A1111 of alternate area at the user data that will in defect area 1110, write down.Equally, in read operation, the A1111 rather than read user data from the alternate area from defect area A1110.Equally, replace the defect area B1112 in second recording layer with the alternate area B1113 that comprises head spare area 1101 in first recording layer 53.

The content of the defect management information among the embodiment 2 is described below with reference to Figure 12.Figure 12 shows the position in district in first defect management 611 (DMA1).First defect management 611 (DMA1) and embodiment 1 different character of embodiment 2 will only be described below.The defect list 1209 that is stored in the 2nd DL memory block 702 comprises two defective inlets, i.e. defective inlet A1201 and defective inlet B1202.Defective inlet A1201 is that the defect area A1110 of expression Figure 11 is replaced the information that district A1111 replaces.On the other hand, the defect area B1112 of defective inlet B1202 storage representation Figure 11 is replaced the information that district B1113 replaces.Therefore, be included in that the alternative state mark all is 0 with the alternative state mark that is included among the defective inlet B1202 among the defective inlet A1201.This is because when the corresponding defects district was replaced district's replacement, the alternative state mark had value 0, when defect area is not replaced and writes down, has value 1.The same with embodiment 1, the defective sector number of plies and defective sector number are represented the number that allows the number of identification record layer and allow sector position in unique definite recording layer respectively.Defect area A1110 and alternate area B1111 thereof are included in first recording layer 53, and therefore, the defective sector number of plies 735 that is included among the defective inlet A1201 all representes 1 with the alternative sectors number of plies 737.On the other hand, defect area B1112 is included in second recording layer 54, and alternate area B1113 is included in first recording layer 53.Therefore, be included in the defective sector number of plies 740 expression values 2 among the defective inlet B1202, this value 2 is represented second recording layer 54, the alternative sectors number of plies 742 expressions value 1, and this value 1 is represented first recording layer 53.Note, the same with defective sector several 735 and 740, the sector number of the starting position of alternate area in alternative sectors several 737 and the unique definite recording layer of 742 representatives.

In embodiment 2, replace the defect area B1112 in second recording layer 54 with the alternate area B1113 in first recording layer 53.For example, suppose that now 1000 total defective sectors are present in two recording layers.If carry out defect management individually, must in each recording layer, distribute spare area so corresponding at least 1000 sectors for each recording layer.In other words, two recording layers need with at least 2000 spare areas that the sector is corresponding altogether.On the other hand, in embodiment 2, store the defect list that is used for all recording layers, replace the defect area in certain recording layer with the spare area in another recording layer simultaneously with uniform way.Therefore, in the present invention, the spare area that two recording layers need be corresponding with 1000 sectors altogether (for example, in each of two recording layers, 500 sectors being set).Therefore, can reduce to be assigned as the volume in the district of spare area, make it can increase the volume of user data area 602 thus.

Multi-layered information recording medium 800 according to the embodiment of the invention 2 has been described above.

To describe below about as stated according to the effect of multi-layered information recording medium 800 except embodiment 1 described effect of the present invention of the embodiment of the invention 2.

About being included in the defect management information of all recording layers in the multi-layered information recording medium, make the alternate area in the enough different layers of its ability replace defect area in certain layer by single defect list management thus.Therefore, even defect area appears in certain recording layer thick and fast, and used up all spare areas in this layer, the spare area in also can enough other recording layers replaces.Therefore, even, also can use the spare area in all recording layers effectively, and can guarantee reliability of recording data because degenerations such as dielectric material cause in specific recording layer, occurring thick and fast defect area.Although omitted description to it, should clearly realize that, use the method for subsequent use DL identical among the embodiment 2 with embodiment 1.

Notice that the dish medium of embodiment 2 is the reverse orbit CD, wherein from the interior circumferential periphery of first recording layer 53 with from inside Zhou Jinhang record of the periphery of second recording layer 54 and reproduction.Equally, in all recording layers all from interior circumferential periphery write down and the parallel track CD that reproduces, managing defective area similarly.

(embodiment 3)

Below with reference to accompanying drawing the information recording/reproducer 500 according to the embodiment of the invention 3 is described.This information recording/reproducer 500 uses the multi-layered information recording medium of in embodiment 1 and 2, describing respectively 600 and 800 to write down and reproduces.

Figure 13 is the block scheme of expression according to the information recording/reproducer 500 of the embodiment of the invention 3.This information recording/reproducer 500 comprises disc motor 502, prime amplifier 508, servo circuit 509, binarization circuit 510 (binarization circuit), modulation/demodulation circuit 511, ECC circuit 512, impact damper 513, CPU514, internal bus 534 and bare headed part 535.In information recording/reproducer 500, load this multi-layered information recording medium 800.Shaven head part 535 comprises lens 503, actuator 504, laser drive circuit 505, photodetector 506 and delivery platform 507.Reference numeral 520 expression rotation detection signals.Reference numeral 521 expression disc motor drive signals.Reference numeral 522 expression Laser emission allow signal.Reference numeral 523 expression light detecting signals.Reference numeral 524 expression servo error signals.Reference numeral 525 expression actuator driving signal.Reference numeral 526 expression delivery platform drive signals.Reference numeral 527 expression analog data signals.Reference numeral 528 expression binaryzation data-signals.Reference numeral 529 expression demodulated data signals.The data-signal that Reference numeral 530 expressions are proofreaied and correct.Reference numeral 531 expression stored data signal.The data-signal of Reference numeral 532 presentation codes.The data-signal of Reference numeral 533 expression modulation.

CPU514 plays the control part.This CPU514 passes through the whole work of internal bus 534 control information data recording/reproducing devices 500 according to the control program of configuration.Be described below, bare headed part 535 can be optically in multi-layered information recording medium 800 sidelights on from this multi-layered information recording medium 800 go into information.Shaven head part 535 can read information from multi-layered information recording medium 800 optically.The CPU514 that is described below utilizes the execution of bare headed part 535 control defect management process.

Laser emission in response to from CPU514 output allows signal 522, and laser drive circuit 505 is transmitted into laser 536 on the multi-layered information recording medium 800.Light by multi-layered information recording medium 800 reflections converts light detecting signal 523 into through photodetector 506.Light detecting signal 523 passes through adding in prime amplifier 508/subtracts, and produces servo error signal 524 and analog data signal 527.Carry out the A/D conversion through 510 pairs of analog data signals of binarization circuit 527, be converted into binaryzation data-signal 528.Through this binarization data-signal 528 of modulation/demodulation circuit 511 demodulation, so that produce demodulated data signal 529.This demodulated data signal 529 is converted into the data-signal 530 of the correction that does not comprise any error through ECC circuit 512.The data-signal 530 of this correction is stored in the impact damper 513.Servo circuit 509 feeds back to focus control or the tracking control that actuator 504 is used for lens 503 with servo error thus based on servo error signal 524 output actuator driving signal 525.Add error correction codes to institute's stored data signal 531 through ECC circuit 512, institute's stored data signal 531 is the data from impact damper 513 outputs, so that produce encoded data signals 532.Then, through modulation/demodulation circuit 511 these encoded data signals 532 of modulation, so that produce the data-signal 533 of modulation.The data-signal 533 of this modulation is inputed to laser drive circuit 505, so that the power of modulated laser.

This information recording/reproducer 500 can be as the peripherals of computing machine, for example with the CD-ROM drive of computing machine etc.In this case, main frame interface circuit (not shown) is set in addition, data are through the for example transmission between main frame (not shown) and impact damper 513 such as SCSI of main frame bus interface (not shown).What can select is; If this information recording/reproducer 500 is used as consumer device with the AV system; CD-audio player etc. for example; AV decoding/encoding circuit (not shown) is set so in addition, so that mobile image or sound that compression is moved image or sound or compressed, and the data that obtain are transmitted between main frame and impact damper 513.

In reproduction operation according to the information recording/reproducer 500 of the embodiment of the invention 3; When considering to substitute; Two processes need be provided; Promptly obtain the process and the process of reproducing the sector of defect management information, so that reproduce the information of having used in the multi-layered information recording medium 800 defect management of the present invention, that comprise two recording layers that is recorded in.

In recording operation according to the information recording/reproducer 500 of the embodiment of the invention 3; Except above-mentioned reproduction operation; When considering to substitute; Two processes also need be provided, the process of the process of promptly upgrading defect management information and record sector so that in having used multi-layered information recording medium 800 defect management of the present invention, that comprise two recording layers recorded information.

To describe the work of the data recording/reproducing device 500 of embodiment 3 below, wherein utilize of multi-layered information recording medium 800 enterprising line item and the reproductions of the defect management of main reference Figure 11 and 12 descriptions at embodiment 2.Higher-level device is output such as the main frame information of specifying the district that will write down and reproduce for example, and this information is represented by logic sector number (LSN).Physical location information on the recording medium is represented by physical sector number (PSN).Suppose that now PSN comprises the sector number of plies and sector number, the sector number of plies is illustrated in the layer that wherein has the sector, uses sector number can in having the layer of sector, discern the position of sector.

Figure 14 shows and is used for explaining the process flow diagram 1400 that obtains the program of defect management information in the embodiment of the invention 3.

In the first step that obtains the defect management information process, promptly in step 1401, CPU514 order servo circuit 509 control laser focus point are gone so that in reference layer, follow track.

In step 1402, the sector that bare headed part 535 is reproduced stored CD information, CUP514 confirms recoding/reproduction multi-layered information recording medium 800 parameters needed and form.

In step 1403, bare headed part 535 is reproduced and is stored in the DDS district 700 in the reference layer.The DDS data of being reproduced remain on the precalculated position of impact damper 513.

In step 1404, CPU514 begins the sector number of plies 711 through the DL in the DDS data in the reference buffer 513 and confirms that DL begins layer and whether is present in the reference layer.Be present in the reference layer if DL begins layer, program proceeds to step 1406 so.Be present in the recording layer except reference layer if DL begins layer, program proceeds to step 1405 so.

In step 1405, CPU514 order servo circuit 509 control laser focus point are gone so that in the recording layer that is begun the number of plies 711 expressions in sector by DL, follow track.

In step 1406, bare headed part 535 reads the pre-sized portion of defect list from the sector that is begun sector number 712 expressions by DL.The defect list that reads remains on the precalculated position of impact damper 513.

Figure 15 is the process flow diagram 1500 of explanation according to the sector reproduction process of the embodiment of the invention 3, has wherein considered to substitute.In this reproduction process, suppose that the defect management information and the defect list that comprise the DDS data have remained in the impact damper 513.

In this first step of reproducing process, promptly in step 1501, the LSN that CPU514 will distribute to each district to be reproduced converts PSN (will describe this step in detail with reference to Figure 16 below) into.

In step 1502, whether CPU514 confirms to exist the recording layer of laser focusing point consistent with recording layer to be reproduced at present with reference to the number of plies of the PSN that waits to reproduce the district.If consistent, this program proceeds to step 1504 so, if inconsistent, this program proceeds to step 1503 so.

In step 1503, the focus point of CPU514 order servo circuit 509 control laser 536 is gone so that in recording layer to be reproduced, follow track.

In step 1504, bare headed part 535 is reproduced the information in the sector of being represented by the PSN that in switch process 1501, obtains that is recorded in.

Figure 16 is the process flow diagram 1600 that explanation converts LSN into according to the embodiment of the invention 3 program (being the step 1501 of Figure 15) of PSN.

In the first step 1601 of this transfer process, do not considering promptly not exist the mode of defective sector to convert LSN into PSN under alternative existence or the non-existent situation to be similar to.With reference to Figure 11, when the ordinal number level (ordinal level) of LSN to be converted is worth less than the sector number in first user data area 15,

PSN=(PSN of minimum in first user data area 15)+LSN.

When the sequence valve of LSN to be converted during greater than the sum of the sector in first user data area 15,

PSN=(PSN of minimum in second user data area 16)+LSN-(the sector sum in first user data area 15).

Note,, therefore partly locate (promptly adjacent) with middle spare area 1002 ' to its most peripheral that distributes sector in second user data area 16 of minimum PSN to be positioned at second user data area 16 because the multi-layered information recording medium 800 of Figure 11 has the reverse orbit track.

In step 1602, the defective entry data in the tabulation of CPU514 reference defect confirms whether the PSN that obtains in above-mentioned steps matees the defective sector number of plies and the defective sector number that is stored in the defect list.If write down, this program proceeds to step 1603 so; If do not write down (promptly not substituting), EOP (end of program) so.

In step 1603, the defective entry data of CPU514 from be recorded in defect list selected the alternative sectors number of plies and the alternative sectors number (being the defective sector number of plies and defective sector number) by the defective inlet expression of expression PSN.

Note, when never the multi-layered information recording medium 600 (Fig. 6) of spare area reproduces data, omit process, perhaps omit by the process of step 1602 with 1603 expressions by step 1603 expression.

As stated, the information recording/reproducer 500 according to the embodiment of the invention 3 can reproduce data from the multi-layered information recording medium that comprises defect management.The reproduction operation of the user data that the reproduction operation of the user data that after the focus of laser 536 has moved on to recording layer to be visited, has carried out and individual layer information recording carrier carry out is basic identical.Like this, should clearly realize that, can be used for any playback program of the information recording/reproducer of single-layer optical disc design.

Figure 17 is the process flow diagram that is used to explain according to the program of the renewal defect management information of the embodiment of the invention 3.In the present embodiment, as the example of the formatting procedure of multi-layered information recording medium, with initialization and the renewal of describing defect management information.

In the first step 1701 of escalation process, in memory buffer 513, CPU514 produces the DDS data with predetermined definition value be used for data recording/reproducing device and the defect list that comprises DL head 720, wherein in DL head 720, the DL number that enters the mouth is made as 0.In this case, in the new DDS that produces, formatting procedure is set before DL among the DDS700 of (Figure 12) begin the sector number of plies 711 and begin sector number 712 with DL.

In step 1702, whether the recording layer of confirming to be begun by DL 712 expressions of the sector number of plies is consistent with the recording layer that the focus of present laser 536 is followed.If consistent, program proceeds to step 1704 so; If inconsistent, program proceeds to step 1703 so.

In step 1703, the focus of CPU514 order servo circuit 509 control laser 536 begins the track in the recording layer of the sector number of plies 711 expressions so that follow by DL.

In step 1704, CPU514 writes down the new defect list that produces in having the district of preliminary dimension, and this district begins from the sector number that is begun sector number 712 expressions by DL.In this case, begin the Qu Zhongshi (for example, defect list 1209 (Figure 12)) that sector number 712 is represented when defect list has been recorded in by DL in advance, the defect list that will write down in advance so is updated to the defect list of new generation.

In step 1705, whether the CPU514 specified data correctly is recorded in the DL memory block.If correctly write down, program proceeds to step 1707 so.If there be not (this district can not use), program proceeds to step 1706 so.Through the data of reading and recording in the DL memory block with judge that whether the data read are to treat the consistent correct judgement of carrying out data recording of data recorded.

In step 1706, CPU selects another available DL memory block.At first, CPU514 confirms at present whether the defect management of the recording layer of record data (perhaps spare area) comprises available DL memory block therein.In same recording layer, select radial location to approach the DL memory block of present employed DL memory block.If in same recording layer, there is not available DL memory block, CPU514 selects to comprise the not available DL memory block of the subsequent use DL memory block of usefulness in adjacent recording layer so.In the new DL memory block of selecting, the tabulation of CPU514 recording defect, this defect list have with the DL memory block that is stored in definite not usefulness in the identical content of defect list.

In step 1707, CPU514 confirms whether the track of being followed by the focus of laser 536 at present is the track of reference layer.If program proceeds to step 1709 so; If not, program proceeds to step 1708 so.

In step 1708, the focus of CPU514 order servo circuit 509 control laser 536 is so that follow the track in the reference layer.

In step 1709, in the DDS data that in memory buffer 513, produce, CPU514 is recorded in the beginning PSN in the DL district (being included in the DL memory block of selecting in the step 1706) of wherein recording defect tabulation.Specifically, renewal DL begins the sector number of plies 712 and begins sector number 712 with DL.

In step 1710, CPU514 utilizes bare headed part 535 in the DDS district of multi-layered information recording medium, to be recorded in the DDS data that produce in the memory buffer 513.

Notice that in embodiment 3, in step 1704, the district of recording defect tabulation therein is not limited to the defect list memory block before formatting procedure.Should clearly realize that, for example, can make formatting procedure all defect list storage district before invalid, and CPU514 can recording defect tabulation in the district of new appointment.

Figure 18 is used to the process flow diagram 1800 according to the logging program of the embodiment of the invention 3 is described, has wherein considered to substitute.

In the first step 1801 of this recording process, CPU514 will specify will be therein the LSN of the sector of record data convert PSN (referring to Figure 21) into.

In step 1802, CPU514 is with reference to the number of plies of PSN, so that whether the recording layer of confirming at present to be followed by the focus of laser 536 is consistent with the recording layer of record data therein.If consistent, program proceeds to step 1804 so; If inconsistent, program proceeds to step 1803 so.

In step 1803, the focus of CPU514 order servo circuit 509 control laser 536 is so that follow the track in the recording layer of record data above that.

In step 1804, CPU514 uses bare headed part 535 record data in the sector of being represented by the PSN that obtains in step 1801.

In step 1805, whether CPU514 confirms in the data recording of step 1804 successful.If success, program proceeds to step 1807 so; If unsuccessful, the definite sector of attempting record data therein of CPU514 is defective so, and program proceeds to step 1806.

In step 1806, CUP514 distributes alternate sector for confirming as defective sector.CPU514 replaces defect area with the alternate area of usefulness not, and this is not included in from the spare area of the weakness of defect area radius distance the alternate area of usefulness, and this is not present in (in this case, the alternate area is an alternate sector) in the recording layer that comprises defect area in the alternate area of usefulness.For example, when on the periphery of first recording layer 53, detecting defect area (Figure 11), from the 1102 distribution alternate areas, the first middle spare area that recording layer 53, are provided with.If the middle spare area 1102 in first recording layer 53 does not comprise available alternate area, the middle spare area 1102 ' from second recording layer 54 distributes available alternate area so.If the middle spare area 1102 ' of second recording layer 54 does not comprise available alternate area, the head spare area 1101 from first recording layer 53 distributes available alternate area so.With such order, the alternate area is appointed as in any one spare area in the multi-layered information recording medium.

In step 1807, in recording process, CPU514 confirms whether newly distributed alternate sector in step 1806.If not, recording process finishes so; If program proceeds to step 1808 so.

In step 1808, the newly assigned alternative sectors of record in the defect list in being stored in memory buffer 513.In this case, if defective sector has been recorded in the defect list, so only upgrade the alternative sectors number of plies and alternative sectors number.On the other hand, if detect new defective sector, so detected defective sector is added in the defect list.

When record data in the multi-layered information recording medium that does not comprise the spare area 600 (Fig. 6), omitted process by step 1806 expression.In this case, record is used for the information of the detected defective sector of administrative institute in defect list.

As stated, according to the information recording/reproducer 500 of the embodiment of the invention 3 can be in having the multi-layered information recording medium of defect management record data.The spare area that can from be arranged on the recording layer different with the recording layer that has defective sector therein, be provided with in the present invention, distributes alternate sector.This information recording/reproducer 500 can be to lay particular emphasis on the mode that shortens hunting time or to distribute alternate sector with the mode that shortening is provided with the recording power required time.The recording operation of the user data that carries out to the operation of user data area user data and individual layer information recording carrier that after the focus of laser has moved to recording layer to be visited, has carried out is substantially the same.Like this, should clearly realize that, can be used for any logging program of the information recording/reproducer of single-layer optical disc design.

Although in the description of the invention described above; Reproduction/recorded information and defect management connect a sector on the basis of a sector and carry out; But should clearly realize that; Carry out, or connect at an ECC piece on the basis of an ECC piece (an ECC piece is a unit, based on the error correction code of this unit calculated example such as DVD CD) even the reproduction/record of information and defect management connect (one comprises a plurality of sectors) on one the basis at one, also can be suitable for the present invention.But the embodiment of this modification also drops in spirit of the present invention and the range of application, and the embodiment of any modification that those skilled in the art understand easily drops in the claim scope of the present invention.

(embodiment 4)

Below with reference to accompanying drawing the multi-layered information recording medium according to the embodiment of the invention 4 is described.

Figure 19 is the figure of expression according to the multi-layered information recording medium 1900 of the embodiment of the invention 4.This multi-layered information recording medium 1900 comprises two recording layers 55 and 56.This multi-layered information recording medium 1900 comprises the user data area 1903 that is used for user data.In embodiments of the invention 4, last recording layer (55) shown in Figure 19 is called first recording layer, and following recording layer (56) is called second recording layer.

First recording layer 55 is positioned at from the position of the surperficial preset distance of multi-layered information recording medium 1900, through this surface sense data (data are read the surface).This first recording layer 55 is known as reference layer.Said preset distance equals to read the distance of surface to this recording layer from the optical disc data that includes only a recording layer.In a plurality of recording layers, confirm reference layer in advance.

Along the recoding/reproduction direction of multi-layered information recording medium 1900, from interior circumferential periphery, first recording layer 55 comprises introduces district 1901, head spare area 1902 and as first user data area 1931 of the part of user data area 1903.Along the recoding/reproduction direction of this multi-layered information recording medium 1900, from inside week of periphery, second recording layer 56 comprises second user data area 1932, spare area, end 1904 and the draw-out area 1905 as the part of user data area 1903.

Introduce control data zone 1911 that district 1901 comprises the control information that is used to store multi-layered information recording medium 1900 and be used to write down first defect management 1912 (DMA1) and second defect management 1913 (DMA2) about the defect management information of defect area.Head spare area 1902 comprises the alternate area with spare area, end 1904, can use this alternate area to replace the defect area in the user data area 1903.Draw-out area 1905 comprises and is used to write down the 3rd defect management 1921 (DMA3) and the 4th defect management 1922 (DMA4) about the defect management information of defect area.Each all stores identical defect management information first defect management 1912 (DMA1), second defect management 1913 (DMA2), the 3rd defect management 1921 (DMA3) and the 4th defect management 1922 (DMA4).This is because through the identical defect management information of duplicated record in a plurality of districts of multi-layered information recording medium 1900, has improved the reliability of defect management information.

User data area 1903 comprises first user data area 1931 and second user data area 1932.In first user data area 1931, there is defect area A1915.In second user data area 1932, there is defect area B1924.Replace defect area A1915 with alternate area A1914.Replace defect area B1924 with alternate area B1923.

Multi-layered information recording medium 1900 according to the embodiment of the invention 4 comprises four defect managements with identical content, thereby makes it can realize the reliability of defect management information.All four defect managements all are arranged on the interior week of this multi-layered information recording medium 1900 thick and fast, thereby the distance that the shaven head part is moved is the shortest.According to this characteristic, can advantageously shorten the required time of initialization procedure of multi-layered information recording medium 1900.In addition, defect management is not set, therefore, can the whole periphery of this multi-layered information recording medium 1900 all be used as user data area in periphery.Therefore, can obtain bigger user data capacity.

The data structure of first defect management 1912 is described below with reference to Figure 20.As stated, first defect management 1912 (DMA1), second defect management 1913 (DMA2), the 3rd defect management 1921 and the 4th defect management 1922 each all have identical defect management information.Here, only describe first defect management 1912, omitted description other defect management.

Figure 20 shows the data structure of first defect management 1912.DDS district 2000, first to fourth DL memory block 2001 to 2004 and DL header area 2020 have the data structure identical with DDS district shown in Figure 7 700, first to fourth DL memory block 701 to 704 and DL header area 720 respectively, have omitted description of them.Here description is included in defective inlet A2021 and defective inlet B2022 in the defect list 2009.

Defective inlet A2021 comprises the defect management information about defect area A1915 (Figure 19).Replace defect area A1915 with alternate area A1914.Therefore, the alternative state 734 that is included among the defective inlet A2021 is expressed as 0, and its implication is represented to exist alternative.Because defect area A1915 is present in first recording layer 55, so the defective sector number of plies 735 values of being expressed as 1, its implication is represented first recording layer 55.Several 736 expressions of defective sector allow the identification number of the defect area A1915 in unique identification first recording layer 55.Equally, owing to alternate area A1914 is present in first recording layer 55, so the alternative sectors number of plies 737 values of being expressed as 1.Several 738 expressions of alternative sectors allow the identification number of the alternate area A1914 of unique identification first recording layer 55 values.

Defective inlet B2022 comprises the defect management information about defect area B1924 (Figure 19).Defect area B1924 is replaced district B1923 and replaces.Therefore, the alternative state 739 that is included among the defective inlet B2022 is expressed as 0, and its implication is represented to exist alternative.Because defect area B1924 is present in second recording layer 56, so the defective sector number of plies 741 values of being expressed as 2, its implication is represented second recording layer 56.Several 741 expressions of defective sector allow the identification number (identification number) of the defect area B1924 in unique identification second recording layer 56.Equally, owing to alternate area B1923 is present in second recording layer 56, so the alternative sectors number of plies 742 values of being expressed as 2.Several 743 expressions of alternative sectors allow the identification number of the alternate area B1923 in unique identification second recording layer 56.

As stated, the multi-layered information recording medium 1900 according to embodiment 4 has obtained bigger user data capacity, and can improve the reading performance of defect management information.

Notice that the CD media of embodiment is the reverse orbit CD, wherein from the interior circumferential periphery of first recording layer 55 with from inside Zhou Jinhang record of the periphery of second recording layer 56 and reproduction.Equally, all recording layers all write down from interior circumferential periphery and the parallel track CD that reproduces, also can managing defective area.

Note, in embodiment 4, in multi-layered information recording medium 1900, be provided with two spare areas, be i.e. head spare area 1902 and spare area, end 1904.Yet any one or two that can omit in them all omit.

Note; In embodiment 4,, the multi-layered information recording medium 1900 with two recording layers has been described for simply; Yet; Even under the situation of the multi-layered information recording medium that has three recording layers at least,, also can access above-mentioned effect if on the interior week of the recording layer of the interior Zhou Shanghe of reference layer except reference layer, defect management is set.

Under the situation of the multi-layered information recording medium that has three recording layers at least, can on the interior week of all recording layers except reference layer, defect management be set.

(embodiment 5)

Below with reference to accompanying drawing the multi-layered information recording medium according to the embodiment of the invention 5 is described.

Figure 21 is the figure of expression according to the multi-layered information recording medium 2100 of the embodiment of the invention 5.This multi-layered information recording medium 2100 comprises two recording layers 57 and 58.This multi-layered information recording medium 2100 comprises the user data area 2103 that is used for user data.User data area 2103 rides the border of first and second recording layers 57 and 58.In embodiments of the invention 5, last recording layer (57) shown in Figure 21 is known as first recording layer, and following recording layer (58) is known as second recording layer.

First recording layer 57 is positioned at from the position of the surperficial preset distance of multi-layered information recording medium 2100, through said surperficial sense data (data are read the surface).First recording layer 57 is known as reference layer.This preset distance equals to read the distance of surface to this recording layer from the optical disc data that includes only a recording layer.In a plurality of recording layers, confirm reference layer in advance.

Along the recoding/reproduction direction of multi-layered information recording medium 2100, from interior circumferential periphery, this first recording layer 57 comprises introduces district 2101, head spare area 2102 and as first user data area 2131 of the part of user data area 2103.Along the recoding/reproduction direction of multi-layered information recording medium 2100, from interior circumferential periphery, second recording layer 58 comprises second user data area 2132, spare area, end 2104 and the draw-out area 2105 as the part of user data area 2103.

Introduce control data zone 2111 that district 2101 comprises the control information that is used to store this multi-layered information recording medium 2100 and be used to write down first defect management 2112 (DMA1) and second defect management 2113 (DMA2) about the defect management information of defect area.Head spare area 2102 comprises the alternate area with spare area, end 2104, can use this alternate area to replace the defect area in the user data area 2103.Draw-out area 2105 comprises and is used to write down the 3rd defect management 2121 (DMA3) and the 4th defect management 2122 (DMA4) about the defect management information of defect area.Each all stores identical defect management information first defect management 2112 (DMA1), second defect management 2113 (DMA2), the 3rd defect management 2121 (DMA3) and the 4th defect management 2122 (DMA4).This is because through the identical defect management information of duplicated record in a plurality of districts in this multi-layered information recording medium 2100, has improved the reliability of defect management information.

User data area 2103 comprises first user data area 2131 and second user data area 2132.Defect area A2115 is present in first user data area 2131.Defect area B2124 is present in second user data area 2132.Replace defect area A2115 with alternate area A2114.Replace defect area B2124 with alternate area B2123.

Be included in the defect management in week in first recording layer 57 according to the multi-layered information recording medium 2100 of the embodiment of the invention 5; The defect management that comprises the second layer 58 peripheries simultaneously; Thereby greatly improved following possibility; Even promptly on this multi-layered information recording medium 2100, have stain (for example fingerprint etc.) or scratch, any defect management on interior week or the periphery may be used to reproduce; Make it can realize the reliability of defect management information.Only on one of interior week of each recording layer and periphery, defect management is set, thereby obtains bigger available area as user data area.Therefore, can realize bigger user data capacity.

The data structure of the defect management among the embodiment 5 is identical with the embodiment 4 that describes with reference to Figure 20, has omitted its description.

As stated,, can improve the reliability of defect management information, realize bigger user data capacity simultaneously according to the multi-layered information recording medium 2100 of embodiment 5.

Notice that the dish medium of embodiment 5 is the parallel track dish, wherein write down and reproduce from the interior circumferential periphery of first recording layer 57 with from the interior circumferential periphery of second recording layer 58.Equally, in recording layer 57 from interior circumferential periphery and recording layer 58 from the inside Zhou Jinhang of periphery record and the reverse orbit dish that reproduces, also can managing defective area.

Note, in embodiment 5, in multi-layered information recording medium 2100, be provided with two spare areas, i.e. head spare area 2102 and spare area, end 2104, however any or two that can omit in them omit.If in multi-layered information recording medium 2100, there is not the spare area, use defect list to manage information so about the defect area that does not distribute the alternate area.

Note; In embodiment 5,, the multi-layered information recording medium 2100 with two recording layers has been described for easy; But; Even under the situation of the multi-layered information recording medium that has three recording layers at least, if interior week of reference layer and the recording layer except reference layer interior week defect management is set, also can realize above-mentioned effect.

(embodiment 6)

Below with reference to accompanying drawing the multi-layered information recording medium according to the embodiment of the invention 6 is described.

Figure 22 is the figure of expression according to the multi-layered information recording medium 2200 of the embodiment of the invention 6.This multi-layered information recording medium 2200 comprises two recording layers 59 and 60.This multi-layered information recording medium 2200 comprises the user data area 2203 that is used for user data.This user data area 2203 rides the border of first and second recording layers 59 and 60.In embodiments of the invention 6, last recording layer (59) shown in Figure 21 is known as first recording layer, and following recording layer (60) is known as second recording layer.

First recording layer 59 is positioned at from the position of the surperficial preset distance of this multi-layered information recording medium 2200, through this surface sense data (data are read the surface).First recording layer 59 is known as reference layer.This preset distance equals to read the distance of surface to this recording layer from the optical disc data that only comprises a recording layer.In a plurality of recording layers, confirm reference layer in advance.

Recoding/reproduction direction along this multi-layered information recording medium 2200; From interior circumferential periphery, this first recording layer 59 comprise introduce district 2201, head spare area 2202, as the spare area 2204 and first draw-out area 2205 in the middle of first user data area 2203, first of user data area 2203 parts.Recoding/reproduction direction along this multi-layered information recording medium 2200; From interior circumferential periphery, this second recording layer 60 comprise second introduce spare area 2207 in the middle of the district 2206, second, as second user data area 2232, spare area, end 2208 and second draw-out area 2209 of user data area 2203 parts.

First introduces control data zone 2211 that district 2201 comprises the control information that is used to store this multi-layered information recording medium 2200 and is used to write down first defect management 2212 (DMA1) and second defect management 2213 (DMA2) about the defect management information of defect area.Head spare area 2202, first spare area 2204, second spare area 2207 and spare area, end 2104 comprise the alternate area, and the alternate area can be used to replace the defect area in the user data area 2203.First draw-out area 2205 comprises and is used to write down the 3rd defect management 2216 (DMA3) and the 4th defect management 2217 (DMA4) about the defect management information of defect area.Being similar to first introduces district 2201, the second and introduces control data zone 2211 that district 2206 comprises the control information that is used to store this multi-layered information recording medium 2200 and be used to write down the 5th defect management 2221 (DMA5) and the 6th defect management 2222 (DMA6) about the defect management information of defect area.Being similar to 2205, the second draw-out areas 2209, first draw-out area comprises and is used to write down the 7th defect management 2223 (DMA7) and the 8th defect management 2224 (DMA8) about the defect management information of defect area.Each all stores identical defect management information first defect management 2212 (DMA1), second defect management 2213 (DMA2), the 3rd defect management 2216 (DMA3), the 4th defect management 2217 (DMA4), the 5th defect management 2221 (DMA5), the 6th defect management 2222 (DMA6), the 7th defect management 2223 (DMA7) and the 8th defect management 2224 (DMA8).This is because through the identical defect management information of duplicated record in a plurality of districts of this multi-layered information recording medium 2200, has improved the reliability of defect management information.

User data area 2203 comprises first user data area 2231 and second user data area 2232.In first user data area 2231, there is defect area A2215.In second user data area 2232, there is defect area B2225.Replace defect area A2215 with alternate area A2214.Replace defect area B2225 with alternate area B2226.

Multi-layered information recording medium 2200 according to the embodiment of the invention 6 comprises the defect management on first recording layer 59 and 60 interior weeks of second recording layer and the periphery, thereby makes it can realize the reliability of defect management information.For example; Significantly improved following possibility; Even promptly on this multi-layered information recording medium 2100, have stain (for example fingerprint etc.) or scratch, also can any defect management on interior week or the periphery be used for reproducing, thus the reliability of the defect management information that strengthens.On the other hand, if control circuit or optical system receive the influence of the variation of data recording/reproducing device internal temperature, data recording/reproducing device degradation with time etc., can reduce the ability that this device writes down and reproduces with respect to concrete recording layer so.In this case, through store defect management information in all recording layers, can improve the reliability of defect management information.

The data structure of the defect management in the example 6 is identical with the data structure of the example of describing with reference to Figure 20 4, has omitted its description.

As stated, according to the multi-layered information recording medium 2200 of embodiment 6, can significantly improve the reliability of defect management information.

Notice that the dish medium of embodiment 6 is the parallel track dish, wherein write down and reproduce from the interior circumferential periphery of first recording layer 59 with from the interior circumferential periphery of second recording layer 60.Equally, in recording layer 59 from interior circumferential periphery and recording layer 60 from the inside Zhou Jinhang of periphery record and the reverse orbit dish that reproduces, also can managing defective area.

Note; In embodiment 6, in multi-layered information recording medium 2200, be provided with four spare areas, i.e. 2204, second middle spare area 2207 and the spare area, end 2208,2202, the first middle spare area, head spare area; Yet, can omit any the perhaps all omission in them.If in this multi-layered information recording medium 2200, do not have the spare area, use defect list to manage information so about the defect area that does not distribute the alternate area.

Note; In embodiment 6,, the multi-layered information recording medium 2200 with two recording layers has been described for easy; But; Even under the situation of the multi-layered information recording medium that has three recording layers at least,, also can realize above-mentioned effect if defect management is set in interior week of reference layer and periphery and on interior week of the recording layer except reference layer and periphery.

Industrial applicibility

According to multi-layered information recording medium of the present invention; The control information district is set in single recording layer; For example be used to store the record of this multi-layered information recording medium and reproduce the district of parameter and be used to store district, thereby make it can the high speed access control information about defect management information.

According to multi-layered information recording medium of the present invention, all defect management information of all recording layers of storage in single recording layer, thus make it can the high speed access defect management information.

According to multi-layered information recording medium of the present invention, subsequent use defect list memory block is set in the recording layer except the recording layer of store defect management information, thereby makes it can improve the reliability of defect management information.

According to multi-layered information recording medium of the present invention; The Pan Dingyijiegouqu that comprises expression defect list positional information is positioned at substantially the same radial location with the subsequent use defect list district that can store this defect list, thereby makes it can this defect list of high speed access.

According to multi-layered information recording medium of the present invention,, thereby, also can use the defect list district effectively between each recording layer even defect area has changed with all defect tabulation in all recording layers of uniform way management.

According to multi-layered information recording medium of the present invention, in any recording layer, replace detected defect area with the spare area, make it can use spare area and raising data reliability effectively.

According to multi-layered information recording medium of the present invention, on one of interior week of each recording layer and periphery, defect management is set, thereby makes it can realize bigger user data capacity.

According to information regeneration method of the present invention and information reproduction apparatus, can be from comprising multi-layered information recording medium information reproduction about the defect management information of a plurality of recording layers.

According to information recording method of the present invention and information record carrier, can be in comprising about the multi-layered information recording medium of the defect management information of a plurality of recording layers recorded information.

Under the situation of not leaving scope of the present invention and spirit, to those skilled in the art, various other modifications all will be conspicuous, and be easy to make.In view of the above, the scope of the claim of not hoping to add is limited to given description here, and should be from broadly understanding claim.

Claims (2)

1. method for recording information in multi-layered information recording medium, said multi-layered information recording medium comprises:

A plurality of recording layers;

Be arranged on user data area at least two, that be used for user data in said a plurality of recording layer; With

The defect management that comprises the defect list memory block, said defect list memory block are used for the storage defect tabulation, and said defect list is the information of management detected defect area in said user data area,

In the layer of wherein in said a plurality of recording layers, stipulating said defect management is set,

Said defect list be management in said specified layer detected defect area and in the recording layer different with said specified layer the information of detected defect area,

In said a plurality of recording layers different with said specified layer at least one comprises subsequent use defect list memory block, in the time can not using said defect list memory block, use subsequent use defect list memory block write down said defect list and

Said defect management storage contains at least one dish definition structure of the defect list positional information of the said defect list of expression position,

Wherein said method comprises:

In the time can not using said defect list memory block in said subsequent use defect list memory block the record said defect list and

At least one dish definition structure of record in said defect management, wherein said at least one dish definition structure comprises said defect list positional information.

2. one kind is used to reproduce the method that is recorded in the information on the multi-layered information recording medium, and said multi-layered information recording medium comprises:

A plurality of recording layers;

Be arranged on user data area at least two, that be used for user data in said a plurality of recording layer; With

The defect management that comprises the defect list memory block, said defect list memory block are used for the storage defect tabulation, and said defect list is the information of management detected defect area in said user data area;

In the layer of wherein in said a plurality of recording layers, stipulating said defect management is set,

Said defect list be management in said specified layer detected defect area and in the recording layer different with said specified layer the information of detected defect area,

In said a plurality of recording layers different with said specified layer at least one comprises subsequent use defect list memory block, in the time can not using said defect list memory block, use subsequent use defect list memory block write down said defect list and

Said defect management storage contains at least one dish definition structure of the defect list positional information of the said defect list of expression position,

Wherein said method comprises:

In the time can not using said defect list memory block, reproduce said defect list from said subsequent use defect list memory block,

Reproduce said defect list positional information from said at least one dish definition structure.

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