CN1820312A - Improved multi-layer optical disc format - Google Patents
Improved multi-layer optical disc format Download PDFInfo
- Publication number
- CN1820312A CN1820312A CNA2004800196810A CN200480019681A CN1820312A CN 1820312 A CN1820312 A CN 1820312A CN A2004800196810 A CNA2004800196810 A CN A2004800196810A CN 200480019681 A CN200480019681 A CN 200480019681A CN 1820312 A CN1820312 A CN 1820312A
- Authority
- CN
- China
- Prior art keywords
- data
- data storage
- dish
- substrate
- storage layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
An optical disc (102) and method for forming the same. The optical disc preferably includes a first substrate (150) comprising a pre-recorded, first data storage layer (152) and a second substrate (156) comprising a recordable, second data storage layer (158). The second substrate is affixed to the first substrate such that a data transducing beam (161) passes through a common exterior boundary surface (162) of the disc to access the respective first and second layers. Preferably, the pre-recorded layer comprises a sequence of pits and lands (218). Addresses of blocks in the respective layers preferably successively increment (220) so that a readback system (100) interprets the respective layers as a common recording layer within the disc. One of the layers can store disc authentication data zone, a patch which updates a version of user data stored in the remaining layer, etc. A content supplier can supply specially configured substrates with pre-recorded control data to control disc manufacture.
Description
Technical field
Present invention relates in general to field of optical disc technology, more specifically but be not limited to relate to through improved disk format and forming method thereof.
Background technology
CD is the data storage medium that is used to store various digital encoded data.These dishes are easy to carry in fact usually, and can play in the various device such as personal computer, car audio player, household audio and video system, hand-held personal entertainment device, family game system etc.
Typical CD comprises circular discs, and this circular discs has or more a plurality of data storage (record) layer of the reflectorized material that embeds in the refraction substrate.Each layer typically along basic and described disc spins around the vertical plane of axle be provided with, and store data with the form of the regional area (pit (pits) and boss (lands)) of different reflectivity.Can be along helical orbit or a plurality of nested concentric rail storage data of continuous extension.
The data-switching head uses laser or similar light source, based on the different reflectivity output read back waveform of pit and land area.Decoding circuit is decoded to user data, so that export by suitable reproducer.
CD can be prerecorded or recordable.Pre-recorded disc typically comprises the embedded metal layer of each pit of storage and boss.In a single day described metal layer uses injection moulding (injection molding) to handle and forms in the manufacture process of dish, and finishes the dish manufacturing operation, data just are stamped in the dish forever.
Recordable disc is the medium that can write data.When this uses, " can write down " contained the dish (WORM dish) that can write once or the dish (can override dish) that repeatedly writes and wipes the two.WORM dish typically utilizes the embeding layer of dyestuff or other material, and this embeding layer can optionally be exposed to writes laser beam, so that the zone with pit and the corresponding different reflectivity of boss permanently to be provided.Can override dish and typically utilize light beam to write the data as the zone of a series of different reflectivities, and the data of utilizing magnetic field to wipe before to have write.
Since each byte is all identical on each duplicate of CD, then pre-recorded optical disc has the low advantage of every byte records data cost.The shortcoming of pre-recorded optical disc is after making substrate, a certain amount of unique information (being sequence number, Product Activation sign indicating number, software " patch " or renewal etc.) can not be increased on each dish.
The advantage of CD-R is: can be in each disc recording unique data value.The shortcoming of CD-R is: the full content data are record after making all, thereby has increased the cost of each byte.Usually, content supplier tends to use pre-recorded disc at producing in enormous quantities, with realization production efficiency, and at small serial production, then turns to the use recordable disc gradually.
Repeatedly attempted creating a kind of " mixing " CD, the part of its mid-game is prerecorded, and another part is recordable.A purpose of this method is to utilize the advantage of low cost of every byte of pre-recorded data, is provided at the dirigibility that dish is gone up increases follow-up simultaneously.The example of the dish of these types comprises Kodak
CD-PROM and ODC
TMCDR-ROM.But these dishes typically have prerecord part and recording section in the one side that is fabricated onto substrate, and this handles the manufacturing of dish and becomes complicated, transmit the cost of byte thereby increased each.But the mixing pan of other type is arranged to prerecord and recording section can conduct interviews from the opposite face of dish, and this needs two heads or dish to be reversed to visit two parts.
Because continuous demand for the content that provides on the CD; so there is the continuous requirement to following dish form through improving: this dish form implements relatively easy and cheap, and the dirigibility of containing such as the various requirement of tracking and copy-protection system is provided.The present invention is improved to target with these and other generally.
Summary of the invention
According to preferred embodiment, a kind of CD comprises first substrate and second substrate, and described first substrate comprises prerecorded first data storage layer, and described second substrate comprises recordable second data storage layer.Described second substrate invests described first substrate, so that the common exterior boundary surface that makes the data-switching light beam pass dish conducts interviews to each first data storage layer and second data storage layer.
Preferably, prerecorded first data storage layer comprises a series of pits and the boss that is formed in described first data storage layer.Preferably before described second substrate was invested described first substrate, use write light beam data recording is arrived recordable second data storage layer.
In addition, first data storage layer preferably includes first data in the addressable blocks that is stored in first scope, second data storage layer comprises second data in the addressable blocks that is stored in second scope, and first and second scopes increase continuously on whole address realm, make the readback system that is associated with the data-switching light beam think that these first data and second data are positioned on the shared recording layer of described dish.Each layer can extend on the whole radial extension of dish basically, and perhaps alternatively, one deck can have the size of dwindling, so that local extension on the whole radial extension of dish.
Preferably, a chosen storage is used to discern described dish for through authorizing the dish verify data of duplicate in first and second data storage layers.In addition, perhaps alternatively, but recording layer can be used for storing the patch that the version that is stored in the user data in the pre-recorded layer is upgraded.
According to another preferred embodiment, a kind of method is provided, comprise the steps: to form first substrate that comprises prerecorded first data storage layer, and second substrate is invested first substrate to form CD.Second substrate comprises recordable second data storage layer, and described second data storage layer is oriented the common boundary surface that makes the subsequent data commutating optical beam pass dish and visits each first and second data storage layer.
The formation step is preferably incorporated in a series of pits and boss is provided in first substrate, to form prerecorded first data storage layer, and described method further preferably is included in before the attachment steps, uses to write light beam with the step of data recording to recordable second data storage layer.
As mentioned above, the address that is associated with each layer preferably increases continuously on the gamut of address, makes readback system that first data and second data are considered as being positioned on the shared recording layer of described dish.
Each layer can all extend on the whole radial extension of dish basically, and perhaps alternatively a layer can have the size of dwindling, so that only local extension on the whole radial extension of dish.Chosen one can be used to store and is used for described dish is identified as through authorizing the dish verify data of duplicate in first and second data storage layers, and additionally or alternatively, but recording layer can be used for storing the patch that the version to the user data that is stored in pre-recorded layer upgrades.
According to another preferred embodiment, provide a kind of method to comprise the steps: the substrate of content-data and special configuration is offered copying equipment, the substrate of described special configuration comprises the pre-recorded data accumulation layer of the control data that storage is associated with content-data.Form at least one content data substrate at the copying equipment place, described at least one content data substrate comprises the content-data accumulation layer that is configured to store described content-data.
After this, the substrate of special configuration is invested described at least one content data substrate, forming CD, described dish is suitable for passing by the data-switching light beam common exterior boundary surface of dish and visits pre-recorded data accumulation layer and content-data accumulation layer respectively.
To the reading of following detailed description, various further features of the preferred embodiments of the present invention and advantage will become clear based in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 provides the functional block diagram of optical disc reproduction system;
The routine generally read direction that single-layered disk is shown of Fig. 2;
The routine generally read direction that multilayer disc is shown of Fig. 3;
Fig. 4 provides the schematic description according to the CD of preferred embodiment structures more of the present invention;
Fig. 5 provides the schematic description according to the CD of other preferred embodiment structure of the present invention;
Fig. 6 describes the structure according to the DVD-5 CD of preferred embodiment;
Fig. 7 describes the structure according to the DVD-5 CD of another preferred embodiment;
Fig. 8 is the structure according to the DVD-9 CD of another preferred embodiment;
Fig. 9 is the structure according to the DVD-10 CD of another preferred embodiment;
Figure 10 shows the structure according to the DVD-18 CD of another preferred embodiment;
Figure 11 example illustrates the structure of compact disk (CD) form according to another preferred embodiment;
Figure 12 is combined into die cavity and has described substrate, and the method for optimizing that forms selected substrate is shown with example;
Figure 13 shows the addressing scheme according to the DVD-5 compatible format disc of another preferred embodiment;
Figure 14 shows another addressing scheme according to the DVD-5 compatible format disc of another preferred embodiment; And
Figure 15 example illustrates another addressing scheme according to the DVD-9 compatible format disc of another preferred embodiment.
Specific embodiment
With reference to figure 1, there is shown a kind of optical disc reproduction system 100, described optical disc reproduction system 100 is configured to the data that store in the CD 102 of constructing according to various preferred embodiments described here are carried out retaking of a year or grade.Motor 104 is with constant linear velocity (CLV) rotating disc 102, and comprises that compact disk laser pick-up part based on the conversion head 106 of laser and linear actuators assembly 108 is to decoding from the data pattern of dish 102.Readback processor 110 is carried out necessary signal Processing so that analog output signal is outputed to output device 112.This output device 112 can be taked various ways according to the type that is stored in the data of dish on 102, thereby can comprise household audio and video system, computer system, portable or disk player for vehicles etc.
Fig. 2 example generally illustrates following mode, wherein in retaking of a year or grade operating period, by system's 100 accesses disk 102 of Fig. 1.Dish 102 is envisaged as the single-surface single-layer dish in Fig. 2, as the digital versatile disc (as DVD-5) of compact disk (CD, CD-ROM, CD-R, CD-R/W etc.) or particular type.
Fig. 3 example illustrates following general mode, and wherein when dish was single face, double-layer structure (as DVD-9), system 100 read dish 102.Dish 102 among Fig. 3 comprises two data Layers 122,124 (being expressed as " layer 0 " and " layer 1 ").Ground floor 122 (layer 0) has Lead-In Area 126, is thereafter program area 128 and mesozone 130.The second layer 124 (layer 1) has mesozone 132, program area 134 and leading-out zone 136.During retaking of a year or grade, with shown in direction read each layer.Typically skip mesozone 130,132.Content information (as contents table) is stored in the content of discerning two program areas 128,134 in the Lead-In Area 126.
According to preferred embodiment, CD 102 has many board structures, substantially as shown in Figure 4 and Figure 5.In Fig. 4, first substrate 150 comprises prerecorded first data storage layer 152 (being also referred to as a layer L0 at this) along substrate boundaries 154.Second substrate 156 comprises recordable second data storage layer 158 (being also referred to as a layer L1 at this) along substrate boundaries 160.During manufacture, second substrate 156 is invested first substrate 150 to finish dish 102 (preferably via unshowned middle layers).After this via visiting each data storage layer 152,158 by coiling 102 common boundary surface 162 from the data-switching light beam (illustrating) of head 106 by arrow 161.
The embodiment of Fig. 5 is similar with the embodiment of Fig. 4 generally, therefore uses identical label.Yet in Fig. 5, second data storage layer 158 is positioned on the end face 164 of second substrate.As hereinbefore, visit each layer 152,158 by common boundary surface 162.
Can envision the various alternative arrangements and the feature of the preferred embodiments of the present invention.In certain embodiments, one of data storage layer 152,158, physically exceed the position formation dish authentication district of normal access region (being importing, program and the leading-out zone of Fig. 2 and Fig. 3), and be used to coil authentication purpose.
In other embodiments, but dish 102 is configured to allow the final user by recording layer 158 to carry out follow-up renewal.In other other embodiment, use following addressing scheme, make playback system 100 be considered as " list " recording layer with two-layer 152,158, as long as so relate to this playback system, just do not consider when but data are write in the recording layer 158, and the total data in each layer 152,158 is considered as in individual layer (being layer 0 or the layer 1 among Fig. 3).These and other modified example is discussed below successively.
Fig. 6 provides the overall statement according to the CD 102 of first embodiment, wherein dish is envisioned for to comprise prerecord DVD-5 dish.Note, enlarged various ratios and simplified following discussion with the location.
Person of skill in the art will appreciate that the DVD-5 dish is a kind of single face, single-layered disk of storage about 4.7 GB (G) data.The thickness of this dish is near 1.2 millimeters (mm), and formed by the polycarbonate dish 202,204 of two approximate 0.6mm, described son coil 202,204 and thin binding layer 206 combine.
As previously mentioned, system 100 conducts interviews to the dish among Fig. 6 102 up, and feasible data-switching light beam from light picker passes through substrate border 214, and enters son dish 204 under the polycarbonate.Beam impinges is formed on down the metallized reflective layer 218 on the top substrate boundaries 212 of son dish 204, and the Returning beam that turns back to light picker with passing down son dish 204 detects the pit of formation herein and the relative reflectance of boss explicitly.
Because commutating optical beam has penetrated and has coiled 102 outside surface (being lower boundary 214), and the substrate (promptly descending polycarbonate dish 204) that passes dish visits another apparent surface (being medial border 212) of substrate, so sometimes this visit is called " second surface record ".This impacts outer substrate boundaries with commutating optical beam wherein and does not penetrate " the first surface record " of substrate opposite.
Recording layer in the dish 102 among Fig. 6 is called as dish authentication region (being identified at 220 places), and also uses the second surface recording technique that it is conducted interviews.Zone 220 is preferably formed by a series of wiggle pregroove (wiggle pre-groove) in the top substrate boundaries 208 of last son dish 202 (not shown for simplifying).Recording dye layer 222 covers on the pregroove marks, and planar metallised reflection horizon 224 covers on the recording dye layer 222.
During the accessing operation to zone 220, light picker is focused, and makes commutating optical beam pass border 214,212,210 and 208 (just passing son dish 204,202) and focuses on the reflection horizon 224.Will coil 102 be transported to the final user before, perhaps activating by the final user in the process of application program, optionally data are write recording layer 222.These data are used for the content of identification dish 102, are provided for copy protection or are used for the key of other authentication purpose etc.
If expectation, then recording layer 222 can be in addition or alternatively is configured to the number of times of indicating this dish 102 accessed.For example, when application routine can be configured to each accesses disk, a numeral " tally mark (tally mark) " is recorded in the zone 220.After the pre-determined number that allows visit (for example 5 times) afterwards, refuse further accessing operation.
Dyestuff that alternatively, can buy on the market, special preparation can use in recording layer 222.This dyestuff can deterioration when being exposed to the normal conversion light beam.The operative configuration of dish 102 is become to make to zone 220 execution trackings; After surpassing access times, dyestuff makes the tracking can't successful execution abundant deterioration, thereby has refused the further visit to coiling 102.
Therefore, though in a preferred embodiment, in top boundary surface 208, form wiggle pregroove, make zone 220 is being carried out the follow-up write operation phase and asked and can follow the trail of by register system (DVD-R etc.), and in alternative embodiment, in top boundary surface 208, form actual pit and cam pattern, so that the available data set is offered this zone, and this data acquisition inaccessible that after repeating dye coating 222 exposed, becomes after this.
Fig. 7 provides the embodiment of the DVD-5 that coils 102 alternative.Similar shown in embodiment among Fig. 7 and Fig. 6, but dish authentication region 220 is adjacent with the bottom boundaries 210 of last son dish 202, rather than as adjacent with top boundary 208 among Fig. 6.Therefore, in the present embodiment, normal recordings layer 218 and authentication region 220 all are arranged in the synthetic substrate of dish 102, though they are on the different surfaces of differing heights.Should be appreciated that this embedded technology can be suitable for other embodiment hereinafter described similarly.
Fig. 8 shows dish 102, and this dish 102 has single face, the double-layer structure according to DVD-9 form (capacity with 8.5G) generally.In Fig. 8, identical label is used for similar parts.Dish 102 among Fig. 8 is included in down the semi-reflective layer 226 on the border 212 of son dish 204 and coils reflection horizon 228 on 202 the border 210 at last son.As previously mentioned, from following Visitor Logs layer 226,228 and authentication region 220.
Fig. 9 shows the dish that has according to the form of DVD-10 (9.4G), and this dish is the two-layer dish in two-sided, as to have embedding reflection horizon 230,232.This dish must be able to overturn usually to allow reflection horizon 230, visit top.When as shown in Figure 9 to coiling 102 when carrying out orientation, addressable reflection horizon 232 and authentication region 220 down.
Figure 10 example illustrates the formative dish 102 according to DVD-18 (17.1G), and described dish 102 is four layers of dish of two-sided, as to have embedding reflection horizon 234,236 and the semi-reflective layer 238,240 that embeds.Notice that commutating optical beam passed several internal edges interlayers before access registrar zone 220, visit is then carried out as mentioned above.
Comprise pre-recorded disc though imagined the form of aforementioned exemplary, should be realized that this also non-essential restriction; Be more suitable for ground, can alternatively various intermediate record layers (as 218,226,228,230,232,234,236,238,240,248) be configured to recordablely as required, and layer 220 can be recordable or prerecorded.With layer 220 be rendered as initially " blank " but posting field and before dish 102 is finished, the operation of its record data is provided and result's (" prerecorded area ") identical when metallizing pit and boss structure cambium layer 220 subsequently; Thereby, it is considered as " prerecord " layer for following claims.
Describe as Figure 12, when incorporating authentication region into other conventional pre-recorded disc, method for optimizing is to provide matrix (stamper) on the relative face of the forming cavity 270 that uses when forming replicating disk.First matrix 272 is formed into the part of die cavity and the pattern of the recording layer that is provided for embedding on first of injection moulding substrate 274.Second matrix 276 is arranged on the opposite face of forming cavity 270, is used for forming wiggle pregroove (perhaps further feature) on second (instead) face of substrate 274.Carry out the residue processing and finish the dish that is duplicated.
From Figure 12, can notice, the structure of mould and coil 102 what comprise that partly the feature of general substrate 274 depends on the form of dish.For example, for the DVD-9 form of Fig. 8, substrate 274 can comprise son dish 202, because in Fig. 8, the upper surface 208 of last son dish 202 holds wiggle pregroove, and upward the lower surface 210 of son dish 202 holds a series of pits and the boss that is bonded with reflection horizon 226.In the case, in the process of finishing the dish replication processes, form synthetic substrate subsequently by descending son dish 204 to be attached to son dish 202.
In other cases, the substrate 274 of Figure 12 can be represented the compound body of the independent a plurality of middle layers that form and combine subsequently (as the upward son dish 202 and the sub-down dish 204 of the dish of the DVD-5 among Fig. 6 and Fig. 7).Therefore, can recognize, the molding of Figure 12 representative can be handled being considered as concurrent operations or sequential operation according to given demands of applications.
Figure 13 shows the dish 102 of another preferred embodiment according to the present invention, is called hybrid multilayer (HML:Hybrid Multi-Layer) DVD-5 dish at this.In Figure 13, two substrates 302,304 are provided and use the material (not shown) that is fit to that they are attached together.Described substrate 302 comprises a data storage layer 306 (being L0 in this case) and metal layer 310, and this data storage layer 306 comprises the pit and the boss 308 of a row impression.
Substrate 304 comprises another data storage layer 312 that is called L1, but it has one or more posting field (zone only is shown) in Figure 13.But should comprise wiggle pregroove 314, reflection horizon 316 and dye coating 318 by posting field.As previously mentioned, by the dye coating 318 that optionally exposes (using 314 pairs of heads of wiggle pregroove to position simultaneously) but data are write posting field, thereby provide " striped " of a series of various reflectivity that can not wipe to come as pit and boss during the retaking of a year or grade.
Data storage layer 306 has first group of addressable sectors or piece, and this addressable sectors or piece are as address curve 320 graphic depiction ground, along with radius increases progressively successively.Data storage layer 312 has second group of addressable sectors or piece, and described addressable sectors or piece continue to increase shown in curve 320.Therefore the address on the L0 begins at the lowest address place of the inside radius of L0 to increase and is increased to higher address at sign L0 to 322 places of the hop of L1.The location superlatively of L1 external radius is continued to be increased in the address from the hop of L1.Notice that in alternative embodiment, if desired, layer L0 and L1 can put upside down, make data storage layer 306 be arranged on the upper substrate 304 and data storage layer 312 is arranged on the infrabasal plate 302.
Figure 14 provides another alternative embodiment of HML DVD-5 dish 12, and this dish comprises the hop more than.More specifically, in the case, but first hop 324 be from pre-recorded layer L1 to recording layer L0, but and second hop 326 is to return pre-recorded layer L1 from recording layer L0.As previously mentioned, no matter be what layer, the address is all along with radius increases continuously.
It is the another alternative embodiment of the CD 102 of representative that Figure 15 provides with HML DVD-9 dish.In the case, each L0 data storage layer 306 and L1 data storage layer 312 extend on all paths on the radius of dish 102 basically.As address curve 330 and 332 were described, the address increased on layer L0, jumps to a layer L1 at hop 328 places, and increased to returning on layer L1, and making can be seamlessly together with recorded data in the pre-recorded data reading layer 1 on the layer 1.
Can recognize that traditional readback devices generally is not based on absolute thickness or depth of focus and accumulates on the independent information layer, because aspect the surface flatness of CD and may have very large variation aspect the fabrication tolerance of the thickness of substrate own.On the contrary, readback devices is determined current which layer that is just reading multilayer disc by the addressing content, and promptly some addresses are only on one deck, and other addresses are only on the second layer.Therefore readback devices thinks that when it read given address, it was on the certain layer.
Therefore, the unique property of HML dish 102 described here is that two combination layers will comprise a group address that belongs to single Information Level usually.The part of the address in this group will be comprised in the pre-recorded information on one deck, and the part in these addresses is comprised in and can writes down or can override layer and go up (at record or override the back).Usually, this unique address scheme is easy to guarantee that the HML dish can read by the standard multilayer fetch equipment such as DVD video and DVD-ROM.
The advantage that HML is better than the conventional monolayers mixing pan comprises: but can use the standard manufacture system and method create the pre-recorded information layer and can write down or the rewrite information layer both, reduce manufacturing cost thus.
Use DVD-5 and DVD-9 as example though can understand, the HML technology can be used to comprise any dish structure existing and the following form of developing.Those skilled in the art can easily use prior art to produce dish according to this argumentation, but and can further easily use existing write device and readback devices that desired data is recorded posting field and the prerecorded and recordable content of retaking of a year or grade on the dish.Therefore, for this argumentation of complete understanding, need not to provide the figure and the further discussion that relate to these aspects of the present disclosure.
But the DVD-5 example of Figure 13 and Figure 14 is used the prograde orbit path (PTP) of addressing in each prerecord and posting field.That is, read direction (from ID to OD) is identical for two zones.The example of the DVD-9 of Figure 15 adopts opposite track path (OTP) addressing, wherein reads the data from pre-recorded layer 0 from ID to OD, and then with (OD is to ID) in the other direction but the data posting field in the reading layer 1.Therefore, can use any different read direction, comprise its middle level " snakelike (serpentine) " dish structure that " back and forth " advances between various layers according to given demands of applications.
Be additionally noted that DVD-9 has the recorded data zone in the layer 1 of the pre-recorded data " top " of layer 0, the semi-reflective layer that makes the convert light pick-up be passed in the layer 0 focuses on so that this zone in the layer 1 is read.Therefore, though some embodiment in layer 0, leave " gap " but, be not limited to shown in Figure 15 with the posting field in the reading layer 1 (perhaps vice versa).
Aforementioned various embodiment provides the processing power of remarkable dirigibility and reinforcement for the CD manufacturing.By example, wanting to make the content supplier that a large amount of CDs issue can be such as utilizing various embodiment according to following preferred steps.
At first, content supplier can be provided to the substrate of content-data and a large amount of special configuration the copying equipment that dish manufacturing and/or copy services are provided.Content-data can be transmitted (such as passing through the Internet) via electronics or is provided by the content-data on one or more data storage medium of physical transfer.The substrate of special configuration can transport or make elsewhere and be transported to copying equipment with data storage medium according to the indication of content supplier.
The substrate of special configuration preferably has the form such as the upper substrate 156 of Fig. 4, and this upper substrate 156 has the related data accumulation layer 158 of storing the prerecord control data that is associated with content-data.Control data can comprise unique sequence number, Product Activation sign indicating number as required, upgrade the patch of this control data etc.Preferably, if the quantity of expectation CD is X, then content supplier can provide the special configuration substrate (X+n substrate perhaps alternatively is provided, and wherein n is that the extra substrate of smallest number is to regulate discarded or problem that product is correlated with etc.) of this specified quantitative.
The second, can use copying equipment to form content data substrate in a conventional manner, as 150 representatives of the infrabasal plate among Fig. 4.This content data substrate respectively has or the more a plurality of content-data accumulation layer (as 152 among Fig. 4) that is configured to use suitable coding techniques memory of content data.Notice that this content-data can be stored as the pit and the boss of a series of impressions as required, perhaps the content-data accumulation layer can be recordable and subsequently can be with content data recording thereon.
The 3rd, copying equipment invests each special configuration substrate (as 156) on each content data corresponding substrate (as 150), to form whole X required CDs.Each data storage layer is carried out orientation, so that the data-switching light beam of common exterior boundary surface that can be by passing dish conducts interviews (shown in 161 among Fig. 4).
Like this, content supplier can carefully control the sum of institute's establishment dish.If the substrate of extra special configuration is provided, then they can be returned or do in addition its and use.Therefore, can be used for reducing effectively the unauthorized copying of dish at these various embodiment that present.For example, according to application, can easily playback system 100 be configured to prevent to coil without permission (layer that does not have special configuration) running correctly.
In correlation technique, but content supplier can utilize instruction to offer copying equipment as " blank " layer that comprises posting field through a group substrate of careful counting, with by the embossed data on the layer L0 being carried out mastering and making layer L1 subsequently and the L0 coupling, finish dish.
Thereby, the disclosed embodiments be actually any existing DVD manufacturer provide on existing equipment, create serializing/ability of uniquely identified dish, this is the marked improvement that surmounts prior art, and the ability of important long-term expectation is provided.Alternatively or additionally, but recording layer can be used to store the software " patch " that provides by content source or upgrade, make the prerecord substrate of identical previous mastering can be with " through upgrading " but base plate be complementary.Alternatively or additionally, but can upgrade recording layer between the operating period, so that the operation of the content that control or strengthen is stored in the pre-recorded layer the final user.
In addition, because provide each layer on the different boundary surface in dish 102, so but eliminated fully and the product problem of attempting on the same substrate surface, to provide prerecorded area and posting field to be associated.
For claims, term " prerecord " is construed to consistent with aforementioned discussion, to describe the structure of current storage selected data.This comprises fixed sturcture (as the pit and the boss of impression) but and the interrecord structure that has in fact accommodated record data thereon.With term " can write down " be construed to consistent with aforementioned discussion, the structure that is suitable for storing selected data with description, and " can write down " structure can be only write down once (for example WORM structure) or can repeatedly write down, wipe and (repeatedly the writing structure) of record again.
In claims, data storage layer is orientated makes that can visit data storage layer by the common exterior surface that the data-switching light beam passes dish should be understood as that consistent with aforementioned discussion, need in desired structure, physically not comprise light beam, and only be that structural approach to these layers is described.More specifically, compare, these layers are carried out orientation, make all can to conduct interviews from the identical faces of dish with the directed situation that wherein will apply light beam from the relative two sides of dish in order to visit these layers.Do not require visit practically simultaneously two-layer; Therefore, these layers can overlap mutually as shown in figure 15, perhaps can mutual exclusion diametrically shown in Fig. 4-14, make in some radial positions, and an addressable layer, and at addressable another layer of other radial position.
Should be appreciated that, though details together with the 26S Proteasome Structure and Function of various embodiment of the present invention, mass property and the advantage of various embodiment of the present invention in above stated specification, have been set forth, but this detailed description only is exemplarily, and can in concept of the present invention, change in detail it, particularly the structure and layout to parts fully change, and this principle of the present invention is to indicate by the broader terms of the term of statement claims.
Claims (37)
1, a kind of CD, comprise first substrate and second substrate, described first substrate comprises prerecorded first data storage layer, described second substrate comprises recordable second data storage layer, wherein, described second substrate invests described first substrate, so that be adapted such that the common exterior boundary surface that the data-switching light beam passes dish each first data storage layer and second data storage layer is conducted interviews.
2, CD according to claim 1, wherein said prerecorded first data storage layer comprises a series of pits and the boss that is formed in described first data storage layer.
3, CD according to claim 1, wherein before described second substrate was invested described first substrate, use write light beam data recording is arrived recordable second data storage layer.
4, CD according to claim 1, but wherein said prerecorded first data storage layer comprises recording section, before described second substrate is invested described first substrate, but use writes light beam data recording is arrived this recording section.
5, CD according to claim 1, wherein said first data storage layer comprises first data in the addressable blocks that is stored in first scope, wherein said second data storage layer comprises second data in the addressable blocks that is stored in second scope, and wherein said first and second scopes increase continuously on whole address realm, make the readback system that is associated with the data-switching light beam think that these first data and second data are positioned on the shared recording layer of described dish.
6, CD according to claim 1, a chosen storage is used for described dish is identified as the dish verify data of authorized duplicate in wherein said first and second data storage layers.
7, CD according to claim 1, a chosen layer that also comprises material in wherein said first and second data substrates with initial translucence, described initial translucence optionally changes in response to the subsequent access of described data-switching light beam, thereby has finally prevented the successful access to the related data accumulation layer.
8, CD according to claim 1, wherein said prerecorded first data storage layer comprises user data, and wherein, described recordable second data storage layer comprises data key, when using described data-switching light beam successfully to retrieve described key, allow to carry out the retrieval of described user data.
9, CD according to claim 1, wherein said prerecorded first data storage layer comprises user data, and wherein said recordable second data storage layer comprises the patch that the version to described user data upgrades.
10, CD according to claim 1, wherein each described first and second data storage layers extend on the whole radial extension of dish respectively basically.
11, CD according to claim 1, chosen one is extended on the whole radial extension of dish basically in wherein said first and second data storage layers, and one of the residue in wherein said first and second data storage layers has the size of dwindling, so that extending on the whole radial extension less than dish basically.
12, CD according to claim 1, but it is characterized in that it being the dish of compatible with digital versatile disc.
13, CD according to claim 1, but it is characterized in that it being the dish of compatible compact disc.
14, a kind of method comprises:
Form first substrate, described first substrate comprises prerecorded first data storage layer; And
Second substrate is invested described first substrate form CD, described second substrate comprises recordable second data storage layer, and described second data storage layer is oriented and makes and can visit described first and second data storage layers respectively by the data-switching light beam of the common exterior boundary surface that is suitable for passing dish.
15, method according to claim 14, wherein, the formation step is included in described first substrate a series of pits and boss is provided, to form described prerecorded first data storage layer.
16, method according to claim 14 also is included in before the attachment steps, uses to write light beam with the step of data recording to recordable second data storage layer.
17, method according to claim 14, but wherein said prerecorded first data storage layer comprises recording section, and wherein said method further is included in before the described attachment steps, but use write light beam with data recording to described recording section.
18, method according to claim 14, wherein content supplier identification places the user data on chosen one of described first and second data storage layers, and wherein, described method comprises that further content supplier offers the copying equipment of carrying out attachment steps at least with one of the residue in the user data and first and second data storage layers.
19, method according to claim 18, wherein said copying equipment are carried out in addition user data are placed formation step on described first data storage layer.
20, method according to claim 14, wherein said first data storage layer is included in first data of storing in the addressable blocks of first scope, wherein said second data storage layer is included in second data of storing in the addressable blocks of second scope, and wherein this first and second scope increases continuously on whole address realm, makes the readback system that is associated with described data-switching light beam think that first data and second data are positioned on the shared recording layer of described dish.
21, method according to claim 14, a chosen storage is used for described dish is identified as through authorizing the dish verify data of duplicate in wherein said first and second data storage layers.
22, method according to claim 14, a chosen layer that further comprises material in wherein said first and second substrates with initial translucence, described initial translucence optionally changes in response to the subsequent access of described data-switching light beam, the feasible successful access that has finally prevented the related data accumulation layer.
23, method according to claim 14, wherein said prerecorded first data storage layer comprises user data, and wherein said recordable second data storage layer comprises data key, when using described data-switching light beam successfully to retrieve described key, allow the described user data of retrieval.
24, method according to claim 14, wherein said prerecorded first data storage layer comprises user data, and wherein said recordable second data storage layer comprises the patch that the version to described user data upgrades.
25, method according to claim 14, wherein each described first and second data storage layers extend on the whole radial extension of dish respectively basically.
26, method according to claim 14, chosen one is extended on the whole radial extension of dish basically in wherein said first and second data storage layers, and wherein, one of the residue of described first and second data storage layers has the size of dwindling, so that extending on the whole radial extension less than dish basically.
27, method according to claim 14, but wherein said CD is characterised in that it is the dish of compatible with digital versatile disc.
28, method according to claim 14, but wherein said CD is characterised in that it is the dish of compatible compact disc.
29, a kind of CD forms by the processing that comprises the following steps:
Form first substrate, described first substrate comprises prerecorded first data storage layer; And
Second substrate is invested described first substrate form CD, described second substrate comprises recordable second data storage layer, and described second data storage layer is oriented and makes and can visit this first and second data storage layer respectively by the data-switching light beam of the common exterior boundary surface of passing dish.
30, a kind of method comprises:
The substrate of content-data and special configuration is offered copying equipment, and the substrate of described special configuration comprises the pre-recorded data accumulation layer of the control data that storage is associated with content-data;
Form at least one content data substrate at the copying equipment place, described at least one content data substrate comprises the content-data accumulation layer that is configured to store described content-data; And
Substrate with described special configuration invests described at least one content data substrate subsequently, so that being suitable for being passed by the data-switching light beam common exterior boundary surface of dish, formation CD, described dish visit described pre-recorded data accumulation layer and described content-data accumulation layer respectively.
31, method according to claim 30 wherein forms pit and boss that described content-data accumulation layer in the step is included in a series of impressions at least one content data substrate.
32, method according to claim 30, but the described content-data accumulation layer that wherein forms in the step comprises recording section, but and wherein said method further comprise content data recording to the step of described recording section.
33, method according to claim 30, but the pre-recorded data accumulation layer of the substrate of wherein said special configuration comprises recording section, and wherein said method further is included in to be provided before step, formation step and the subsequent attachment step, writes the step that light beam records control data described recording section but use.
34, method according to claim 30, wherein said control data comprise and are used for described dish is identified as through authorizing the dish verify data of duplicate.
35, method according to claim 30, wherein said control data upgrades the version of described prerecorded first data storage layer that comprises user data, and wherein said recordable second data storage layer comprises the patch of the version that upgrades described user data.
36, method according to claim 30, but wherein said CD is characterised in that it is the dish of compatible with digital versatile disc.
37, method according to claim 30, but wherein said CD is characterised in that it is the dish of compatible compact disc.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47477303P | 2003-05-30 | 2003-05-30 | |
| US60/474,773 | 2003-05-30 | ||
| US60/523,026 | 2003-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1820312A true CN1820312A (en) | 2006-08-16 |
Family
ID=36919544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800196810A Pending CN1820312A (en) | 2003-05-30 | 2004-05-28 | Improved multi-layer optical disc format |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1820312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101601092B (en) * | 2007-11-20 | 2012-08-08 | 松下电器产业株式会社 | Optical disk, optical disk device, optical disk recording/reproducing method, and integrated circuit |
-
2004
- 2004-05-28 CN CNA2004800196810A patent/CN1820312A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101601092B (en) * | 2007-11-20 | 2012-08-08 | 松下电器产业株式会社 | Optical disk, optical disk device, optical disk recording/reproducing method, and integrated circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100437773C (en) | Optical recording medium, optical recording medium production method, optical recording medium production apparatus, program and medium | |
| US7564771B2 (en) | Bonded pre-recorded and pre-grooved optical disc | |
| CN101083096B (en) | Optical disc, information recording method, information reproducing method, and disc drive | |
| US7986601B2 (en) | Multi-purpose high-density optical disc | |
| CN1250539A (en) | Customized graphics for dual layer optical discs | |
| US7710854B2 (en) | Multi-layer optical disc format | |
| US8675464B2 (en) | Dual sided optical storage media and method for making same | |
| US20080107010A1 (en) | High Density, Hybrid Optical Disc | |
| CN1146877C (en) | Optical disk recording and/or reproducing device, and focusing servomechanism | |
| US7376069B2 (en) | Double sided optical disc and method for producing the same | |
| US20070275205A1 (en) | Recordable multilayer optical disk, recording method, reproducing method, and recording apparatus | |
| CN101326581A (en) | De-icing of multi-layer storage media | |
| CN1820312A (en) | Improved multi-layer optical disc format | |
| US20040151098A1 (en) | Data carrier, its manufacturing method, reproduction control method, and drive | |
| CN100454414C (en) | Optical recording medium and process for producing the same | |
| WO2005086145A1 (en) | Multiple-spiral hybrid disc for e-book applications | |
| CN1643601A (en) | Disk data storage media with edge track data surface | |
| CN1757061A (en) | Recordable medium having a data recording area with an embedded non-recordable zone | |
| WO2006003574A2 (en) | Method and apparatus for recording data in an optical record | |
| JP2004192723A (en) | Optical information recording medium | |
| US9025426B2 (en) | Optical disc with pre-recorded and recordable regions and method of forming the disc | |
| CN2447900Y (en) | Manufacturing mould for super digital universal disk | |
| CN1871644A (en) | Optical information recording medium, optical information recording medium recording/reproducing method, and recording/reproducing apparatus | |
| CN1471095A (en) | DVD piece and its manufacturing method | |
| CN1722263A (en) | Composite type CD-R and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20060816 |