CN101383163B - Optical disc and reading and recording method - Google Patents
Optical disc and reading and recording method Download PDFInfo
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- CN101383163B CN101383163B CN2008102159712A CN200810215971A CN101383163B CN 101383163 B CN101383163 B CN 101383163B CN 2008102159712 A CN2008102159712 A CN 2008102159712A CN 200810215971 A CN200810215971 A CN 200810215971A CN 101383163 B CN101383163 B CN 101383163B
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Abstract
An optical disc medium compares a track groove, along which main information is recorded. The track groove is divided into a plurality or blocks. The plurality of blocks each include a plurality of frames. The plurality of frames each include one shape of wobbles indicating sub information, among a plurality of prescribed shapes of wobbles. The plurality of blocks each have address information. The address information is represented by a string of at least one piece of sub information represented by the shape of wobbles of at least one of the plurality of frames.
Description
The application is to be the dividing an application of the application 01817886.3 that is entitled as " CD and physical address format " in August 29 calendar year 2001 the applying date.
Technical field
The present invention relates to a kind of being used for the CD media of high density recording information (for example, digital video information) and a kind of optical disc apparatus and a kind of optical disc replay method that is used for this CD media.
Background technology
Recently, the recording density of CD media has become and has constantly increased.Usually, the CD-R medium has orbital groove therein in advance, and information is along the orbital groove record,, is recorded in orbital groove or on the zone between the orbital groove (being called " convex region (land) ") that is.Orbital groove is the swing (wobble) of sinusoidal, and with based on the clock synchronization ground recorded information that produces hunting period.Along orbital groove the address is provided, so as on the assigned position on the recording surface of CD media recorded information.Use description to provide three illustration structures of address below.
(1) a day disclosure text No.6-309672 discloses a kind of CD, wherein, forms the orbital groove of swing off and in the part, and can address information be reproduced as so-called pre-pit (pre-pit).In this case, on orbital groove, there be single-address zone and the forms data zone that is used for recorded information.
(2) a day disclosure text No.5-189934 discloses a kind of CD, wherein, frequency modulated wobble is provided, and adopts hunting frequency recording address information (sub-information).In this case, data message is overwritten on the address information.
(3) a day disclosure text No.9-326138 discloses a kind of CD, wherein, between the adjacent orbit groove, forms pre-pit, and by the pre-pit calculated address.
Consider the higher recording density that possibly need in the future, all said structures all have its oneself problem.
In the structure of (1), the space that is used for data is owing to (so-called " overhead ") reduced in required space, address.So memory capacity is inevitably owing to reduce in the space that is used for the address.
(2) structure has following point.Swing at first mainly is to provide for purpose that generation is used for the clock of recorded information, therefore preferably forms with single-frequency.When swing forms with single-frequency, can be only through adopting PLL etc. to multiply each other and a synchronous swing reproducing signal produces recording clock signal highly accurately.Yet when swing had a plurality of frequency component, PLL can need be reduced with respect to the situation that swing has single-frequency by adaptive frequency band, to avoid the puppet locking of PLL.Then, undesirable situation possibly occur, promptly PLL can not follow the shake that table motor is shaken or for example produced by the off-centre of coiling fully.This causes in tracer signal, remaining with shake.
At the recording sheet that forms on the recording surface of CD is under the situation of a phase-change thin film, and along with rewriting is repeated, the S/N of recording sheet ratio can undesirably be reduced.Even when this occurs, for one than narrow-band, the swing with single-frequency allow to adopt BPF. to remove noise component.Yet when swing when being warbled, the frequency band that pass through need be exaggerated, so that consider the frequency of being modulated.Consequently, noise component mixes with the swing reproducing signal, therefore further increases shake.This increase of shake is inadvisable, because along with recording density increases, the shake surplus reduces.
In the structure of (3), pre-pit influences reading of the information that is stored in the adjacent orbit groove naturally.Therefore, be difficult to provide the pre-pit that has sufficient length respectively of enough numbers.Therefore, have a kind of undesirable possibility, the number that promptly detects error especially increases when recording density is quite high.
Consider the problems referred to above, the purpose of this invention is to provide a kind of be used to make overhead minimum and with the swing with single-frequency describe the address CD media, be used to reproduce the optical disc apparatus and the optical disc replay method of CD media.
Summary of the invention
According to one aspect of the present invention, one of CD media comparison is write down the orbital groove of main information along it.Orbital groove is divided into a plurality of.Each piece in a plurality of comprises a plurality of frames.Each frame in a plurality of frames comprises a kind of wobble shape of the sub-information of indication in a plurality of regulation wobble shapes.Each piece in a plurality of has address information.Address information is represented by at least one string be made up of the represented sub-information of the wobble shape of at least one frame in a plurality of frames.
In one embodiment of the invention, each piece in a plurality of comprises a plurality of sectors.A plurality of sectors comprise a plurality of frames.Address information is represented by at least one string be made up of the represented sub-information of the wobble shape of at least one frame in a plurality of frames that comprise at least one sector.
In one embodiment of the invention, at least one in a plurality of comprises many address informations.Many address information is identical.Each string of being made up of said at least one strip information in many address informations is represented.
In one embodiment of the invention, each in many address informations comprises a sequence number, the order of sequence number each bar address information of indication in many address informations.
In one embodiment of the invention, address information is by a plurality of bit representations, a plurality of positions by said at least one sub-bit string from low level to high bit representation.
In one embodiment of the invention, each piece in a plurality of comprises a plurality of sectors.A plurality of sectors comprise a plurality of frames.Address information is shown by said at least one string list that comprises in a plurality of sectors.The information of the sector order of indication in a plurality of sectors is represented by the part of said at least one strip information.
In one embodiment of the invention, the information of at least one in index error detection of code and the error correction codes is represented by the part of said at least one strip information.
In one embodiment of the invention, orbital groove has the identity marking of the front end of each piece in a plurality of of the indications that provide therein.
In one embodiment of the invention, identity marking provides through cutting off orbital groove.
In one embodiment of the invention, identity marking provides through the width that the part changes orbital groove.
In one embodiment of the invention, identity marking provides through the amplitude that the part changes wobble shape.
In one embodiment of the invention, a plurality of wobble shapes are included in first wobble shape and second wobble shape that differs from one another at least one of rising gradient and downward gradient, the sub-information bar that first wobble shape and the indication of second wobble shape differ from one another.
In one embodiment of the invention, a plurality of wobble shapes are included in first wobble shape and second wobble shape that differs from one another on the dutycycle, the sub-information bar that first wobble shape and the indication of second wobble shape differ from one another.
In one embodiment of the invention, a plurality of wobble shapes provide on an edge of orbital groove.
In one embodiment of the invention, orbital groove comprises at least one the identity marking in the front-end and back-end of a said at least one sub-bit string of indication.
In one embodiment of the invention, at least one in a plurality of comprises a plurality of said at least one sub-bit strings.Identity marking is indicated the front end of said at least one sub-bit string.Another identity marking in said at least one the sub-bit string among identity marking and is of similar shape.
In one embodiment of the invention, at least one in a plurality of comprises a plurality of said at least one sub-bit strings.Identity marking is indicated the front end of said at least one sub-bit string.At least one identity marking with one in said at least one sub-bit string in another identity marking have different shapes.
In one embodiment of the invention, identity marking is indicated the rear end of said at least one sub-bit string.Identity marking through will be in rising gradient and downward gradient at least one on first wobble shape that differs from one another and second wobble shape make up with the 3rd wobble shape and form with sine wave shape.
In one embodiment of the invention, at least one in a plurality of comprises a plurality of said at least one sub-bit strings.Identity marking is indicated the rear end of said at least one sub-bit string.Another identity marking in said at least one the sub-bit string among identity marking and is of similar shape.
In one embodiment of the invention, at least one in a plurality of comprises a plurality of said at least one sub-bit strings.Identity marking is indicated the rear end of said at least one sub-bit string.At least one identity marking with one in said at least one sub-bit string in another identity marking have different shapes.
In one embodiment of the invention, identity marking provides through the part in the convex region between the adjacent part that cuts off orbital groove.
In one embodiment of the invention, identity marking provides through the convex region between the adjacent part that cuts off orbital groove.
In one embodiment of the invention, the single frequency false data is recorded on the identity marking.
In one embodiment of the invention, indication one of address information is than the bar number of the sub-information of the low level bar number greater than the sub-information of a high bit of indication address information.
According to another aspect of the present invention, CD media compares a record-playback zone and a disk management zone.The record-playback zone comprises first orbital groove that writes down main information along it.The disk management zone is included in second orbital groove that provides at least one of inside region and exterior lateral area of CD media.Second orbital groove comprises a plurality of regulation wobble shapes.The management information of CD media is represented by the combination of a plurality of regulation wobble shapes.
In one embodiment of the invention, a plurality of regulation wobble shapes are included in first wobble shape and second wobble shape that differs from one another at least one in rising gradient and the downward gradient and the 3rd wobble shape with sine wave shape.
In one embodiment of the invention, first orbital groove comprises a plurality of regulation wobble shapes.With in record and reproduction regions, compare the number of the wobble shape of 1 information of indication in disk management zone difference.
In one embodiment of the invention, first orbital groove comprises a plurality of regulation wobble shapes.First orbital groove and second orbital groove differ from one another on the frequency of wobble shape.
In one embodiment of the invention, first orbital groove comprises a plurality of regulation wobble shapes.Second orbital groove has the wobble shape amplitude bigger than first orbital groove.
In one embodiment of the invention, the adjacent part of second orbital groove has constant differing on the wobble shape of pi/2 * (2n+1), and wherein n is an integer.
In one embodiment of the invention, second orbital groove has the track space bigger than first orbital groove.
In one embodiment of the invention, identity marking provides through the phase place that changes at least one wobble shape in the orbital groove.
In one embodiment of the invention, identity marking provides through the frequency that changes at least one wobble shape in the orbital groove.
In one embodiment of the invention, a plurality of wobble shapes provided with the identical cycle.
According to another aspect of the present invention, a kind of optical disc apparatus that is used to reproduce a CD media is provided, said CD media comprises the orbital groove that writes down main information along it.Orbital groove is divided into a plurality of.Each piece in a plurality of comprises a plurality of frames.Each frame in a plurality of frames comprises a kind of wobble shape of the sub-information of indication in a plurality of regulation wobble shapes, and each piece in a plurality of has address information.Address information is represented by at least one string be made up of the represented sub-information of the wobble shape of at least one frame in a plurality of frames.Optical disc apparatus comprises a conversion fraction, is used for reading main information and sub-information and producing a reproducing signal from CD media; A reproducing signal calculating section is used for producing a TE signal and a RF signal from reproducing signal; A reference clock signal produces part, is used for producing a reference clock signal from the TE signal; A level amplitude limit pulse signal produces part, is used for producing a level amplitude limit pulse signal from the TE signal; A piece marking signal test section is used for from piece marking signal of RF input; And a sub-information generation section is used for producing a sub-information signal from reference pulse signal, level amplitude limit pulse signal and piece marking signal.
According to another aspect of the present invention, a kind of method that is used to reproduce a CD media is provided, said CD media comprises the orbital groove that writes down main information along it.Orbital groove is divided into a plurality of.Each piece in a plurality of comprises a plurality of frames.Each frame in a plurality of frames comprises a kind of wobble shape of the sub-information of indication in a plurality of regulation wobble shapes, and each piece in a plurality of has address information.Address information is represented by at least one string be made up of the represented sub-information of the wobble shape of at least one frame in a plurality of frames.This method comprises the steps: to read main information and sub-information and produce a reproducing signal from CD media; Produce a TE signal and a RF signal from reproducing signal; Produce a reference clock signal from the TE signal; Produce a level amplitude limit pulse signal from the TE signal; From piece marking signal of RF input; And, produce a sub-information signal from reference pulse signal, level amplitude limit pulse signal and piece marking signal.
Description of drawings
Fig. 1 has shown according to the orbital groove in routine 1 the CD media of the present invention;
Fig. 2 has shown according to routine 1 CD media of the present invention;
Fig. 3 has shown according to the orbital groove in routine 2 the CD media of the present invention;
Fig. 4 has shown according to the orbital groove in routine 3 the CD media of the present invention;
Fig. 5 has shown according to the orbital groove in routine 4 the CD media of the present invention;
Fig. 6 has shown according to the orbital groove in routine 5 the CD media of the present invention;
Fig. 7 has shown according to the orbital groove in routine 6 the CD media of the present invention;
Fig. 8 has shown according to the orbital groove in routine 7 the CD media of the present invention;
Fig. 9 has shown according to routine 7 CD media of the present invention;
Figure 10 has shown the address structure according to routine 7 CD media of the present invention;
Figure 11 has shown according to the orbital groove in routine 8 the CD media of the present invention;
Figure 12 has shown the address structure according to routine 8 CD media of the present invention;
Figure 13 has shown according to the orbital groove in routine 9 the CD media of the present invention;
Figure 14 has shown the address structure according to routine 9 CD media of the present invention;
Figure 15 has shown according to the orbital groove in routine 10 the CD media of the present invention;
Figure 16 has shown the address structure according to routine 7 CD media of the present invention;
Figure 17 has shown according to the orbital groove in routine 12 the CD media of the present invention;
Figure 18 has shown according to the orbital groove in routine 12 the CD media of the present invention;
Figure 19 has shown according to the orbital groove in routine 12 the CD media of the present invention;
Figure 20 has shown according to the orbital groove in routine 12 the CD media of the present invention;
Figure 21 has shown the address structure according to routine 13 CD media of the present invention;
Figure 22 has shown the address structure according to routine 11 CD media of the present invention;
Figure 23 A has shown the structure according to routine 14 optical disc apparatus of the present invention;
Figure 23 B is the process flow diagram that shows the method that is used to reproduce the information on the CD media of foundation of the present invention routine 14;
Figure 24 has shown according to routine 15 CD media of the present invention;
Figure 25 A has shown according to the orbital groove in routine 15 the CD media of the present invention;
Figure 25 B has shown according to the orbital groove in routine 15 the CD media of the present invention;
Figure 26 A has shown according to the orbital groove in routine 15 the CD media of the present invention;
Figure 26 B has shown according to the orbital groove in routine 15 the CD media of the present invention;
Figure 27 A has shown according to the orbital groove in routine 16 the CD media of the present invention;
Figure 27 B has shown according to the orbital groove in routine 16 the CD media of the present invention;
Figure 28 A has shown according to the orbital groove in routine 17 the CD media of the present invention;
Figure 28 B has shown according to the orbital groove in routine 17 the CD media of the present invention;
Figure 29 A has shown according to the orbital groove in routine 18 the CD media of the present invention;
Figure 29 B has shown according to the orbital groove in routine 18 the CD media of the present invention;
Figure 30 has shown a conventional CD media;
Figure 31 has shown according to the orbital groove in routine 20 the CD media of the present invention;
Figure 32 has shown according to the orbital groove in routine 21 the CD media of the present invention;
Figure 33 has shown according to the orbital groove in routine 22 the CD media of the present invention;
Figure 34 has shown according to routine 14 optical disc apparatus of the present invention;
Figure 35 has shown according to the orbital groove in routine 19 the CD media of the present invention; And
Figure 36 has shown according to the orbital groove in routine 15 the CD media of the present invention.
Embodiment
After this, will with way of example the present invention be described with reference to accompanying drawing.
(example 1)
Fig. 2 has shown according to routine 1 CD media 20 of the present invention.CD media 20 has a recording surface 101, in recording surface 101, is formed with spiral path groove 102.As shown in Figure 1, the shape of orbital groove 102 is different on block-by-block basis.In Fig. 1, piece mark (identity marking) the 210th, the cut-off parts in the orbital groove 102 demonstrates an index of indicating every front end.
Be divided into N sector 25 (N=32 or 16) with every, each sector 25 (sub-piece) is divided into M frame # 0 to #25 (M=26).Every frame (elementary cell) has the swing 26 or 27 of defined amount with periodic mode.Swing 26 and 27 has the regulation shape that differs from one another, and represents sub-information (" 0 ", " 1 " or " S ").One type sub-information (" 0 ", " 1 " or " S ") is by a kind of wobble shape 26 or 27 expressions.Sub-type of info and wobble shape (swing 26 or 27) are man-to-man relations.More specifically, swing 26 and 27 all has and is generally zigzag shape, and has different raised shape (or rising gradient) and decline shape (downward gradient). Swing 26 or 27 forms according to sub-type of info (" 0 " or " 1 ").A string sub-information is represented by the combination of swing 26 and 27.
Rising gradient and difference downward gradient on of swing between 26 and 27 can be easily by the differential push-pull detection signal like the detection of getting off.Scanning laser beam is pointed to orbital groove 102; And produce such differential signal (promptly; Push-pull signal), poor between the light quantity that receives by surveyed area of this differential signal indication along the light receiving element of dividing perpendicular to the direction (radially) of the orbital groove 102 of CD media 20.Therefore, obtaining to have according to sub-information is the rising gradient that changes of " 0 " or " 1 " and the detection signal of downward gradient.This difference on rising gradient and the downward gradient for example can easily discern through detection signal being asked difference.
So sub-type of info can be detected by the size of the value that obtains as difference result.Yet when using difference, noise component also increases naturally.In CD media, detect error by reasonably expection with relatively poor S/N ratio.In this example, every kind of pattern of swing 26 and 27 is repeated repeatedly, so that the reliability of enhancing detection.
Main information (for example, can rewrite user data) is recorded in the module unit 241 along orbital groove 102 from 210 beginnings of piece mark.Module unit 241 has specified length, for example 64kB (or 32kB).Main information can be registered as record mark 28.Record mark 28 is come record through the phase transformation of executive logging layer.Module unit is the unit that is used for information processing, for example is the ECC piece.When N=32, module unit 241 is divided into 32 sectors 25 (or being 16 sectors 25) when N=16.Each sector 25 is the sub-pieces with 2kB length.When M=26, each sector 25 is divided into 26 frame # 0 to #25.
Frame is the base unit of information recorded on orbital groove 102.In Fig. 1, frame # 0 is by label 22 expressions, and frame # 1 is by label 23 expressions.Illustrative like frame 22 and 23, every frame comprises a kind of swing type that forms with periodic mode in advance.Like this, 1 seat information " 0 ", " 1 " or " S " are described in every frame 22 and 23.The piece ID (address information) of the module unit 241 that the sub-message block indication of 26 (M=26) that in each sector 25, comprise is corresponding.At each the front end of frame # 0 to #25, record SYNC mark.The SYNC mark is a synchronizing signal that quilt writes down, and when main information is recorded as record mark 28, representes the front end of each frame of main information.Hunting period with act on make CD media 20 rotation synchronously with the reference clock of tracer signal, the synchronizing signal during also as the reproduction address information.
Except the information of presentation address, piece ID can comprise error correction codes, error-detecting code or the parity check code etc. that are used to proofread and correct or detect detection signal.
No matter some that are caused by noise detect errors, as long as the rising gradient between 208 swings 26 and 27 can be used as whole detection with the difference in the downward gradient, the sub-message block that is recorded in the sector 25 just can correctly be discerned.The reliability of reading further improves through repeating same ID32 time (when the N=32) or 16 times (as N=16 time).According to being used for the illustration particular technology of recognin message block,, and the logic product of rising gradient and the logic product of downward gradient are compared each other in each sampling and keep the difference waveform of push-pull signal when rising with each decline.Like this, the cancellation noise component can only extract sub-information component.
In this example, piece mark 210 is the cut-off parts in the orbital groove 102, and the main information that therefore rewrites in the piece mark 210 is not the most desirable.Its reason is that this marked difference is served as the external disturbance to reproducing signal because whether the light quantity of reflection is fluted according to changes very greatly.VFO posting field 21 is appointed as in the zone that in this example, will comprise piece mark 210.VFO posting field 21 is used to write down VFO211, and VFO211 is the single-frequency signals that is used to adjust the frequency that is used to reproduce the PLL that is recorded in VFO posting field 21 main information afterwards.Even when having slight outside to fluctuate, VFO211 only serves as local shake, does not directly cause any error.In addition, VFO211 has single-frequency, therefore can separate the external disturbance that is caused by piece mark 210 from frequency.
In this example, a module unit 241 () is divided into 32 (or 16) sectors 25, and each sector 25 is divided into 26 frames (frame # 0 is to #25)., in each of #25, form in advance and have swing 26 or 27 at frame # 0 corresponding to the shape of sub-information.Because the sub-message block that is recorded in the sector 25 is represented piece ID, so repeatedly form same ID (address information) in 32 (or 16) sectors 25 that can in module unit 241, comprise.
In this case, sub-message block can comprise the sequence number of the order of the piece ID (address information) that indicates repetition, promptly each piece ID whether be the 5th, the tenth, or the like.This sequence number can be used for finally confirming address number according to great majority.In addition, such sequence number is provided for the useful information of signal Processing, and for example, which sector 25 in the piece is being read now, or which the sub-message block in the piece is incorrect.
Have at CD media under the situation of a plurality of recording surfaces or layer, the sequence number of recording layer can be included in the sub-message block.Like this, recording surface can be by identification easily.
As stated, in this example, a message block is divided into 32 (N=32) or the individual sector of 16 (N=16), a sector is divided into 26 (M=26) frame.In each frame of 26 frames, form wobble shape in advance corresponding to sub-information.Repeatedly form a piece ID (address information) in the individual sector, 32 (or 16) in piece.Therefore, has no overhead ground or need between groove, not come the calculated address by necessary pre-pit.
Though swing has different rising gradient and downward gradient according to sub-information type, used swing has constant single-frequency in this example.Therefore, the clock signal that is used to write down with shake of minimizing can at first adopt and only allow hunting frequency to pass through so that remove the BPF. of noise component, uses PLL the frequency synchronous and gained that multiplies each other to extract then.
The reading reliability of piece ID can improve through repeating same ID.
In this example, the same with the number of frame, piece ID has 26.The figure place of address information is not limited to 26, but can be for example according to being recorded in data volume or the type of error correction codes and any required number of system on the CD media.
In this example, for N=32, module unit is divided into 32 sectors (or be 16 sectors for N=16).The present invention is not limited to such sector number.
In this example, for M=26, sub-information is recorded in 26 frames that comprise in each sector.The present invention is not limited to such frame number.
In this example, sub-information after the swing that is modulated into zigzag fashion by record.The present invention is not limited to such wobble shape.Be described below, sub-information can for example have shown in Fig. 4 or 7 after the swing of shape by record being modulated into.
In this example, the piece mark is the cut-off parts of orbital groove.The present invention is not limited to a kind of like this piece mark of form.For example, be described below, the piece mark can be modulated into has the for example swing of shape shown in Fig. 5 or 6.
(example 2)
Fig. 3 has shown according to routine 2 orbital groove 10 of the present invention.Replace orbital groove 102 shown in Figure 1, orbital groove 10 can form in CD media shown in Figure 2 20.In this example, in frame 22, indicate the swing 27 of sub-information " 1 " in the swing 26 of the sub-information of indication " 0 " and the frame 23, orbital groove 10 has the swing 28 that indication is recorded in the sub-information " S " in the frame 24.With the same in example 1, address information is represented by the combination of sub-information " 0 " and sub-information " 1 ".Sub-information " S " is used to replace piece mark 210 shown in Figure 1 to come the front end of indicator dog in the front end setting of piece.Like this, can eliminate the required overhead of piece mark 210.In this example, the swing 28 of representing sub-information " S " has precipitous rising gradient and precipitous downward gradient.
(example 3)
Fig. 4 has shown according to routine 3 orbital groove 11 of the present invention.Replace orbital groove 102 shown in Figure 1, orbital groove 11 can form in the CD media shown in Fig. 2 20.In first and second examples, periodically repeat a kind of swing type corresponding to a seed information type, the swing that will have different rising gradients and different downward gradients is used for dissimilar sub-information.In this example, form swing 29 and 30, so that have different dutycycles according to sub-type of info.More specifically; As shown in Figure 4; Broad (in the example of Fig. 4, being crest) on the swing 30 that broad (in the example of Fig. 4, being trough) on the swing 29 that indication is recorded in the sub-information " 0 " in the frame 32 in crest or trough, indication are recorded in the sub-information " 1 " in the frame 34 another in crest or trough.Such characteristic has been eliminated the necessity to the reproducing signal difference that is used for the recognin information type.Reproducing signal can recently be discerned through adopting measurement duties such as clock timer simply.Therefore, can alleviate The noise.
(example 4)
Fig. 5 has shown according to routine 4 orbital groove 200 of the present invention.Replace orbital groove 102 shown in Figure 1, orbital groove 200 can form in the CD media shown in Fig. 2 20.In example 1, cut off the part of orbital groove 102, so that form piece mark 210.In this example, adopt and to increase the piece mark 212 that the width of orbital groove 200 forms through the part and come replacement block mark 210.In order to write down or to reproduce main information, can be through detecting the front end that piece mark 212 comes identification block.The use of piece mark 212 avoids orbital groove 200 to be cut off, and therefore main information also can be recorded in the piece mark 212.Consequently, can reduce overhead.
(example 5)
Fig. 6 has shown according to routine 5 orbital groove 201 of the present invention.Replace orbital groove 102 shown in Figure 1, orbital groove 201 can form in the CD media shown in Fig. 2 20.In example 1, cut off the part of orbital groove 102, so that form piece mark 210.In this example, adopt and to increase the piece mark 213 that the amplitude of swing forms through the part and come replacement block mark 210.In order to write down or to reproduce main information, can be through detecting the front end that piece mark 213 comes identification block.With the same in example 4, the use of piece mark 213 avoids orbital groove 201 to be cut off, and therefore main information also can be recorded in the piece mark 213.
(example 6)
Fig. 7 has shown according to routine 6 orbital groove 202 of the present invention and convex region 203.In this example, CD media only has the swing 220 and 230 that forms along an edge of orbital groove 202.Example 1 to 5 relates to groove optical disk of recordable type medium, and wherein, main information is recorded in the orbital groove.The CD media that is called as the another kind of type of convex region-groove type is available.In such CD media, main information is recorded in groove and convex region (being placed on the middle zone of two adjacent grooves) along orbital groove 202.Example 1 to 5 can combine with the CD media of groove-convex region type of describing in this example.
In Fig. 7, sub-information " 0 " and sub-information " 1 " along an edge of orbital groove 202 by record.The swing 220 indication sub-information " 0 " that in frame 221, form, the swing 230 indication sub-information " 1 " that in frame 231, form.By this way, orbital groove 202 with represent with the orbital groove 202 adjacent identical addresses of 203 usefulness, convex region.Main information is recorded in orbital groove 202 and the convex region 203.Through writing down main information by this way, track space narrows down, and has realized more highdensity record like this.
(example 7)
Fig. 9 has shown according to routine 7 CD media 800 of the present invention.CD media 800 has the recording surface 801 that is formed with spiral path groove 802 therein.As shown in Figure 8, orbital groove 802 has the different shape of block-by-block.In Fig. 8, piece mark (identity marking) 810 is cut-off parts in the orbital groove 802 and the index that shows the front end of each piece of indication.
Each piece is divided into N sector 825 (N=32 or 16), and each sector 825 is divided into M frame # 0 to #25 (M=26).Each frame has the swing 826 or 827 of the periodic mode of specified quantity.Swing 826 and 827 has the regulation shape that differs from one another, and representes sub-information (" 0 ", " 1 " or " S ").One type sub-information (" 0 ", " 1 " or " S ") is represented by a kind of wobble shape 826 or 827.Sub-type of info and wobble shape (swing 826 or 827) are to concern one to one.More specifically, swing 826 or 827 all has common zigzag fashion, and has different raised shape (or rising gradient) and decline shape (downward gradient).Swing 826 or 827 forms according to sub-type of info (" 0 " or " 1 ").Sub-bit string is represented by the combination of swing 826 and 827.Sub-bit string is represented by the combination of swing 826 and 827.
Difference between the swing 826 or 827 on rising gradient and downward gradient can easily be detected as follows by the differential push-pull detection signal.Scanning laser beam directive orbital groove 802 has produced indication by the differential signal (be push-pull signal) of edge perpendicular to the difference between the light quantity of the surveyed area reception of the light receiving element of direction (radially) division of the orbital groove 802 of CD media 800.Like this, having obtained to have according to sub-information is the rising gradient that changes of " 0 " or " 1 " and the detection signal of downward gradient.This difference in rising gradient and the downward gradient for example can easily discern through detection signal is carried out difference.
Like this, sub-type of info can utilize the size of the value that obtains as difference result to detect.But when using difference, noise component has increased naturally.In the CD media with relatively poor S/N ratio, faults is reasonably anticipated.In this example, swing each pattern of 826 or 827 is repeated repeatedly the reliability with enhancing detection.
Main information is recorded in from piece mark 810 along orbital groove 802 the module unit 841.Module unit 841 has specified length, for example 64kB (or 32kB).Main information can be registered as record mark 28.Module unit is the unit that is used for information processing, for example is the ECC piece.Module unit 841 is divided into 32 sectors 825 (or when N=16, being divided into 16 sectors) when N=32.Each sector 25 is the sub-pieces with 2kB length.Each sector 25 is divided into 26 frames of #0 to #25 when M=26.At the front end of each frame # 0 to #25, the SYNC mark is registered as and is used to reproduce the synchronization of data signal.
Frame is the base unit that is recorded in the information on the orbital groove 802.In Fig. 8, frame # 0 is by label 822 expressions, and frame # 1 is by label 823 expressions.Like frame 822 and 823 examples, each frame comprises one type the swing that forms with periodic mode in advance.By this way, 1 seat information " 0 ", " 1 " or " S " are described in each frame 822 and 823.Be included at least a portion that 26 (M=26) the sub-message block in each sector 825 is indicated the piece ID (address information) of corresponding module unit 841.
1 information is assigned to frame # 0 each in the #25.For example, 8 frames (promptly 8) are assigned with 1 byte part as piece ID.8 frames then are assigned with 1 byte parity as piece ID.5 frames then are assigned with as 5 bit byte sector numbers.5 remaining frames are assigned with 5 bit parity checks as sector number.Sector number is indicated the order (i.e. the 5th sector, the 10th sector etc.) of sector in a plurality of sectors.In each parity checking index error error detecting code or the error correction code at least one.
For example, the sub-information of a sector that is assigned with as described above is arranged on 4 sectors 825 (being set of sectors 825 ').Through the part of arranged blocks ID, promptly each 1 byte of 4 sectors can be represented 32 piece ID (8 * 4=32 position).
Figure 10 has shown the format sample of the sector that is recorded in the module unit 841 825 and the frame # 0 information in the #25.In Figure 10, left half has shown sector number.Its right has shown the sub-information in the frame that is recorded in each sector.Suppose that module unit 841 comprises 32 sectors.Sector number in the bracket " () " is to comprise the sector number in the situation of 16 sectors at module unit 841.Frame # 0 comprises 1 seat information to each of #25.In this example, module unit 841 is ECC pieces.
With the content of describing sector 0.0 frame # 0 in #7, begins sequentially fill out 4 bytes (32) of having covered ECC block address first 1 byte from LSB at frame # 0 in #25 in the sector.In # 15, fill out the sub-information of first 1 byte in 4 bytes of the parity checking of having covered the ECC block address at frame #8.In # 20, fill out the 5 seat information that Gai Liao represents sector number at frame #16.In # 25, fill out the 5 seat information that Gai Liao represents the parity checking of sector number at frame #21.As shown in Figure 8, in sector 0,1 byte " 01h " is filled out lid and is the part of piece ID.
With the content of describing sector 1.1 frame # 0 in #7, begins sequentially fill out 4 bytes (32) of having covered ECC block address second 1 byte from lowest order at frame # 0 in #25 in the sector.In # 15, fill out the sub-information of second 1 byte in 4 bytes of the parity checking of having covered the ECC block address at frame #8.In # 20, fill out the 5 seat information that Gai Liao represents sector number at frame #16.In # 25, fill out the 5 seat information that Gai Liao represents the parity checking of sector number at frame #21.As shown in Figure 8, in sector 1,1 byte " 23h " information is filled out lid and is the part of piece ID.
With the content of describing sector 2.2 frame # 0 in #7, begins sequentially fill out 4 bytes (32) of having covered ECC block address three 1 byte from lowest order at frame # 0 in #25 in the sector.In # 15, fill out the sub-information of the 3rd 1 byte in 4 bytes of the parity checking of having covered the ECC block address at frame #8.In # 20, fill out the 5 seat information that Gai Liao represents sector number at frame #16.In # 25, fill out the 5 seat information that Gai Liao represents the parity checking of sector number at frame #21.As shown in Figure 8, in sector 2,1 byte " 45h " information is filled out lid and is the part of piece ID.
With the content of describing sector 3.3 frame # 0 in #7, begins sequentially fill out 4 bytes (32) of having covered ECC block address four 1 byte from lowest order at frame # 0 in #25 in the sector.In # 15, fill out the sub-information of the 4th 1 byte in 4 bytes of the parity checking of having covered the ECC block address at frame #8.In # 20, fill out the 5 seat information that Gai Liao represents sector number at frame #16.In # 25, fill out the 5 seat information that Gai Liao represents the parity checking of sector number at frame #21.As shown in Figure 8, in sector 3,1 byte " 67h " information is filled out lid and is the part of piece ID.
By this way, 32 piece ID " 76543210h " represent from each 1 byte information in 4 sectors 825 through combination.
4 block of bytes ID in the sector 825 are preferably to read series arrangement, promptly sequentially from first sector that is read 825 to a last sector that is read 825, and from the lowest order of piece ID to most significant digit.
With describing sector 4 and following or the like content.In sector 4 to 7, the content of sector 0 to 3 will be described with being repeated.Similarly, in sector 8 to 11,12 to 15,16 to 19,20 to 23,24 to 27 and 28 to 31, the content of sector 0 to 3 will be repeated to describe.
By this way, the information in 4 sectors is described (when module unit 841 comprises 16 sectors, being 4 times) 8 times.Like this, be used for realizing that the parity information of error correction will be added to each module unit 841.Can strengthen the reading reliability of piece ID.
Owing to described sector number, even when 1 byte loss of piece ID, this that lose 1 byte also can easily discern through reading sector number.Like this, can strengthen the reading reliability of piece ID.
Owing to described sector number, so the advantage below providing.For example when data behind search operation were not read continuously, the sector number of sector 825 can be read immediately behind search operation, had substituted at front end to begin to read module unit 841 from piece mark 810.Because such operation, piece ID can be next final definite through reading from the sub-information of 4 sectors 825 that any sector 825 begins.
Owing to come the final piece ID of confirming through only reading any of each set of sectors 825 ' that all comprises 4 sectors (8kB=2kB * 4), aftertreatment (data read, data recording etc.) can promptly be accomplished.
Even when causing about 4 sectors of piece ID to be read improperly owing to dish cut (defective), correct piece ID also can be read by the set of sectors that does not have defective.Like this, guaranteed that remarkable high level reads the reliability of piece ID.
Alternative sectors number will be described ID number of order (that is, first sector, second sector etc.) of sector in 4 sectors 825 in set of sectors 825 ' of indication.Wherein Figure 10 has shown 5 sector number of frame # 16 in the #25 and 5 bit parity checks of sector number, and Figure 16 has shown 6 sequence numbers of piece ID of 2 bit parity checks and the repetition of 2 of order of piece ID of the indication repetition of frame # 16 in the #25 ID numbers, ID number.
When using ID, the 5 seat information that each sector number needs can reduce to 2.Use remaining 8 (frame # 18 is to #25), can improve ID number error correction capability, or sequence number that can description block ID.
Owing to described ID number, following advantage can be provided.For example when data behind search operation are not read continuously, behind search operation, can be read immediately for the ID of sector No. 825, substituted at front end and begun to read module unit 841 from piece mark 810.Because such operation, piece ID can be next final definite through reading from the sub-information of 4 sectors 825 that any sector 825 begins.
Comprise in the situation of sequence number of piece ID that in sub-information sequence number can be used to finally confirm address number according to great majority.In addition, such sequence number provides the useful information that is used for signal Processing, for example, which sector 825 in the piece be read now or piece in which sub-message block be incorrect.
Have in the situation of a plurality of recording surfaces or layer at CD media, the sequence number of recording layer can be included in the sub-message block.By this way, recording surface can be by identification easily.For example, in four same sequence number among Figure 16 can use the sequence number of recording layer to substitute.Like this, recording surface can easily be discerned.
In this example, piece ID has 32.The quantity of the position of address information is not limited to 32, but can be the quantity according to any needs of type that for example will be recorded in data volume or error correction code on the CD media and system.
In this example, when N=32, module unit is divided into 32 sectors (or when N=16, being divided into 16 sectors).The present invention is not limited to the sector of such quantity.
In this example, sub-information is recorded in 26 frames that are included in each sector when M=26.The invention is not restricted to the frame of such quantity.
In this example, sub-information after being modulated to zigzag swing by record.The present invention is not limited to such wobble shape.Sub-information can be by record after being modulated to the swing with shape shown in Fig. 4 or 7 for example.
In this example, the piece mark is the cut-off parts of orbital groove.The present invention is not limited to the form of such piece mark.For example, the piece mark can be modulated to the swing that for example has the shape shown in Fig. 5 or 6.
(example 8)
Figure 11 has shown according to routine 8 orbital groove 1102 of the present invention.Orbital groove 1102 can form in the CD media shown in Fig. 2 20, replaces the orbital groove 102 shown in Fig. 1.As shown in Figure 11, orbital groove 1102 has the different shape of block-by-block.In Figure 11, piece mark (identity marking) 1110 is the cut-off parts in the orbital groove 1102, and shows the index of the front end of each piece of indication.
Each piece is divided into N sector 1125 (N=32 or 16), and each sector 1125 is divided into M frame # 0 to #25 (M=26).Each frame has the swing 1126 or 1127 of the periodic mode of specified quantity.Swing 1126 or 1127 has the regulation shape that differs from one another, and representes sub-information (" 0 ", " 1 " or " S ").One type sub-information (" 0 ", " 1 " or " S ") is represented by a kind of wobble shape 1126 or 1127.The shape of sub-type of info and swing (swing 1126 or 1127) is to concern one to one.More specifically, swing 1126 and 1127 all has common zigzag fashion and has different raised shape (or rising gradient) and decline shape (downward gradient).Swing 1126 or 1127 forms according to sub-type of info (" 0 " or " 1 ").Sub-bit string is represented by the combination of swing 1126 and 1127.
The difference of rising gradient and downward gradient can easily be detected as follows by the differential push-pull detection signal between the swing 1126 and 1127.Scanning laser beam directive orbital groove 1102 has produced indication by the differential signal (be push-pull signal) of edge perpendicular to the difference between the light quantity of the surveyed area reception of the light receiving element of direction (radially) division of the orbital groove 1102 of CD media 20.Like this, having obtained to have according to sub-information is the rising gradient that changes of " 0 " or " 1 " and the detection signal of downward gradient.Difference in rising gradient and the downward gradient for example can be through easily discerning the detection signal difference.
Like this, sub-type of info can utilize the size of the value that the result as difference obtains to detect.But when using difference, noise contribution has increased naturally.In the CD media with relatively poor S/N ratio, faults is by reasonably expection.In this example, swing each pattern of 1126 and 1127 is repeated repeatedly the reliability with enhancing detection.
Main information is recorded in from piece mark 1110 along orbital groove 1102 the module unit 1141.Module unit 1141 has specified length, for example 64kB (or 32kB).Main information can be registered as record mark 28.Module unit is the unit that is used for information processing, for example is the ECC piece.Module unit 1141 is divided into 32 sectors 1125 (or when N=16, being divided into 16 sectors) when N=32.Each sector 1125 is the sub-pieces with 2kB length.Each sector 1125 is divided into 26 frames of #0 to #25 when M=26.At the front end of each frame # 0 to #25, the SYNC mark is registered as and is used to reproduce the synchronization of data signal.
Frame is the base unit that is recorded in the information on the orbital groove 1102.In Figure 11, frame # 0 is by label 1122 expressions, and frame # 1 is by label 1123 expressions.Like frame 1122 and 1123 examples, each frame comprises one type the swing that forms with periodic mode in advance.By this way, 1 seat information " 0 ", " 1 " or " S " are described in each frame 1122 and 1123.Be included at least a portion that 26 (M=26) sub-message block in each sector 1125 have been indicated the piece ID (address information) of corresponding module unit 1141.
Except that the information of indication address, piece ID can comprise error correction code, error detection code or the parity check code etc. that are used to proofread and correct or detect detection signal.
For example, 26 frames in each sector 1125 are divided into first 13 frame (frame # 0 are to #12; The first frame group) and second 13 frame (frame # 13 is to #25; The second frame group).1 seat information is recorded in per 13 frames the part as piece ID.Like this, 2 seat information are recorded in each sector 1125 part as piece ID.
Figure 12 has shown the format sample of the sector that is recorded in the module unit 1,141 1125 and the frame # 0 information in the #25.In Figure 12, left half has shown sector number.Its right has shown the sub-information in the frame that is recorded in each sector.1 seat information is recorded in first 13 frame, and 1 seat information is recorded in second 13 frame (frame group).In this example, module unit 1141 is ECC pieces.The sequence number of the position of B0 in each indication ECC block address of B31 (that is, corresponding position whether be first, second etc.).
With the content of describing sector 0.0 frame # 0 is in #25 in the sector, in #12 (the first frame group), fills out in 32 that have covered ECC block address (LSB) first 1 at frame #0.In #25 (the second frame group), fill out in 32 positions having covered the ECC block address second 1 sub-information at frame #13.As shown in Figure 11, in sector 0,2 information (" 0 " or " 1 ") are filled out lid and are the part of block address.
In the first frame group of sector 0, the SYNC sign indicating number " S " of the beginning of indication ECC block address is filled out covers first 1 that substitutes ECC block address (LSB).SYNC sign indicating number " S " can be with the synchronizing signal that acts on reproduction ECC block address or with the certification mark that acts on the beginning that detects the ECC block address.
With the content of describing sector 1.1 frame # 0 in #12, fills out the 3rd 1 in 32 that have covered the ECC block address at frame # 0 in #25 in the sector.In # 25, fill out the 4th 1 sub-information in 32 that have covered the ECC block address at frame #13.As shown in Figure 11, in sector 1,2 information (" 0 " or " 1 ") are filled out lid and are the part of block address.
By this way, 32 piece ID represent from each 2 information in 16 sectors 1125 through combination.
The length and the module unit 1141 that have 32kB at the ECC piece are divided in the situation of 16 sectors 1125, and 32 pieces can obtain through record 2 seat information in each sector 1125.
Have in the situation of 32kB length at the ECC piece, a piece ID is represented by 16 sectors as stated.Have in the situation of 64kB length at the ECC piece, a module unit 1141 has 32 sectors 1125.In sector 16 to 31, the content of sector 0 to 15 is described with being repeated.That is, the information in 16 sectors (sub-message block) is described twice.
Because sub-information is repeatedly recorded in the module unit 1141, piece ID is through only reading 16 sectors, being that 32kB (2k * 16) comes finally to confirm.Therefore, aftertreatment (data read, data recording etc.) can promptly be accomplished.Because piece ID is repeated twice in module unit 1141, can strengthen the reliability of reading of piece ID.
Substitute twice ID of record in module unit 1141, can comprise the information except that piece ID.For example, the sequence number of piece ID can be included in the sub-message block.Sequence number can be used for coming the final address number of confirming based on great majority.In addition, such sequence number provides for the signal Processing Useful Information, for example, in the piece which sector 1125 be read now or piece in which sub-message block be incorrect.
Have in the situation of a plurality of recording surfaces or layer at CD media, the sequence number of recording layer can be included in the sub-message block.In this way, recording surface can easily be identified with reference to Figure 16 is described as top.
In this example, piece ID has 32.The figure place of address information is not limited to 32, and can be the quantity according to any needs of type that for example will be recorded in data volume or error correction code on the CD media and system.
In this example, module unit is divided into 32 sectors when N=16 (or be divided into 16 sectors) during N=32.The present invention is not limited to such number of sectors.
In this example, sub-information is recorded in 26 frames that are included in each sector during M=26.The present invention is not limited to such number of frames.
In this example, sub-information after the swing that is modulated to zigzag fashion by record.The present invention is not limited to such wobble shape.Sub-information can be modulated to have the shape that shows among Fig. 4 or 7 for example after by record.
In this example, the piece mark is the cut-off parts of orbital groove.The present invention is not limited to the piece mark of this form.For example, the piece mark can be modulated to the swing with the shape that shows among Fig. 5 or 6 for example.
(example 9)
Figure 13 has shown according to routine 9 orbital groove 1302 of the present invention.Orbital groove 1302 can form in the CD media shown in Fig. 2 20 and replace the orbital groove 102 shown in Fig. 1.As shown in Figure 13, orbital groove 1302 has the different shape of block-by-block.In Figure 13, piece mark (identity marking) 1310 is cut-off parts in the orbital groove 1302 and the index that shows the front end of each piece of indication.
Each piece is divided into N sector 1325 (N=32 or 16), and each sector 1325 is divided into M frame # 0 to #25 (M=26).Each frame has the swing 1326 or 1327 of the periodic mode of specified quantity.Swing 1326 or 1327 has the regulation shape that differs from one another, and representes sub-information (" 0 ", " 1 " or " S ").One type sub-information (" 0 ", " 1 " or " S ") is represented by a kind of swing 1326 or 1327 of shape.The shape of sub-type of info and swing (swing 1326 or 1327) is to concern one to one.More specifically, swing 1326 and 1327 all has common zigzag fashion and has different raised shape (or rising gradient) and decline shape (downward gradient).Swing 1326 or 1327 forms according to sub-type of info (" 0 " or " 1 ").Sub-bit string is represented by the combination of swing 1326 and 1327.
The rising gradient between the swing 1326 and 1327 and the difference of downward gradient can easily be detected as follows by the differential push-pull detection signal.Scanning laser beam is mapped to orbital groove 1302, has produced the differential signal (that is push-pull signal) of the difference between the light quantity that indication receives by the surveyed area along the light receiving element of dividing perpendicular to the direction (radially) of the orbital groove 1302 of CD media 20.Like this, having obtained to have according to sub-information is the rising gradient that changes of " 0 " or " 1 " and the detection signal of downward gradient.For example, this difference in rising gradient and the downward gradient can be through easily discerning the detection signal difference.
Like this, sub-type of info can utilize the size of the value that the result as difference obtains to detect.But when using difference, noise contribution has increased naturally.In the CD media with relatively poor S/N ratio, faults is by reasonably expection.In this example, swing each pattern of 1326 and 1327 is repeated repeatedly the reliability with enhancing detection.
Main information is recorded in from 1310 beginnings of piece mark along the module unit 1341 of orbital groove 1302.Module unit 1341 has specified length, for example 64kB (or 32kB).Main information can be registered as record mark 28.Module unit is the unit that is used for information processing, for example is the ECC piece.Module unit 1341 is divided into 32 sectors 1325 (or when N=16, being divided into 16 sectors 1325) when N=32.Each sector 1325 is the sub-pieces with 2kB length.Each sector 1325 is divided into 26 frame # 0 to #25 when M=26.At the front end of each frame # 0 to #25, the SYNC mark is registered as and is used to reproduce the synchronization of data signal.
Frame is the base unit that is recorded in the information on the orbital groove 1302.In Figure 13, frame # 0 is by label 1322 expressions, and frame # 1 is by label 1323 expressions.Like frame 1322 and 1323 examples, each frame comprises in advance one type the swing that the form with the cycle forms.By this way, 1 seat information " 0 ", " 1 " or " S " are described in each frame 1322 and 1323.Be included at least a portion that 26 (M=26) the sub-message block in each sector 1325 is indicated the piece ID (address information) of corresponding module unit 1341.
For example, 26 frames in each sector 1325 are divided into first 13 frame (frame # 0 are to #12; The first frame group) and second 13 frame (frame # 13 is to #25; The second frame group).In 13 frames in the first frame group, the mode with the cycle forms identical shaped swing in advance.In 13 frames in the second frame group, the mode with the cycle forms identical shaped swing in advance.Like this, 2 seat information " 0 ", " 1 " or " S " are described in each sector 1325.At least a portion of the piece ID (address information) of the module unit 1341 that 32 seat information indications in each sector 1325 are corresponding.
Except that the information of indication address, piece ID can also comprise error correction code, error detection code or the parity check code etc. that are used to proofread and correct or detect detection signal.
Figure 14 has shown the format sample of the sector that is recorded in the module unit 1,341 1325 and the frame # 0 information in the #25.In Figure 14, Far Left has partly shown sector number.Its right has shown the sub-information in the frame that is recorded in each sector.
With the content of describing sector 0.All frame # 0 of 0 are filled out lid for first 1 in 32 of ECC block address (LSB) in #25 in the sector.As shown in Figure 14, in sector 0,1 seat information B0 (" 0 " or " 1 ") is filled out lid.
With the content of describing sector 1.All frame # 0 of 1 are filled out lid for first 1 in 32 of ECC block address (LSB) in #25 in the sector.As shown in Figure 14, in sector 1,1 seat information B0 (" 0 " or " 1 ") is filled out lid.
In sector 1, fill out the sub-information B0 that covers in sector 0 and be repeated to describe.
The content of sector 2 then will be described.All frame # 0 of 2 are filled out lid for second 1 in 32 of ECC block address in #25 in the sector.As shown in Figure 14, in sector 2,1 seat information B1 (" 0 " or " 1 ") is filled out lid.
With the content of describing sector 3.All frame # 0 of 3 are filled out lid for second 1 in 32 of ECC block address in #25 in the sector.As shown in Figure 14, in sector 3,1 seat information B1 (" 0 " or " 1 ") is filled out lid.
In sector 3, fill out the sub-information B1 that covers in sector 2 and be repeated to describe.
By this way, in the even number sector of sector 12, filled out lid respectively for the the the 3rd, the 4th, the 5th, the 6th and the 7th 1 in 32 of the ECC block address.In odd number (N) sector of sector 13, filled out lid with identical sub-information in even number (N-1) sector.
The content of sector 14 to 24 will be described.
The content of sector 14 will be described.All frame # 0 of 14 are filled out lid for the 8th 1 in 32 of ECC block address in #25 in the sector.As shown in Figure 14, in sector 14,1 seat information B7 (" 0 " or " 1 ") is filled out lid.
The content of sector 15 will be described.All frame # 0 of 15 are filled out lid for the 9th 1 in 32 of ECC block address in #25 in the sector.As shown in Figure 14, in sector 15,1 seat information B8 (" 0 " or " 1 ") is filled out lid.
24 1 seat information is described similarly up to the sector.
The content of sector 25 to 31 will be described.
The content of sector 25 will be described.25 frame # 0 in #12 (the first frame group), is filled out lid at frame # 0 for the 19th 1 in 32 of ECC block address in #25 in the sector.As shown in Figure 14, in the first frame group of sector 25,1 seat information B18 (" 0 " or " 1 ") is filled out lid.
25 frame # 0 in #25 (the second frame group), is filled out lid at frame # 13 for the 20th 1 in 32 of ECC block address in #25 in the sector.As shown in Figure 14, in the second frame group of sector 25,1 seat information B19 (" 0 " or " 1 ") is filled out lid.
The content of sector 26 will be described.26 frame # 0 in #12 (the first frame group), is filled out lid at frame # 0 for the 21st 1 in 32 of ECC block address in #25 in the sector.As shown in Figure 14, in the first frame group of sector 26,1 seat information B20 (" 0 " or " 1 ") is filled out lid.
26 frame # 0 in #25 (the second frame group), is filled out lid at frame # 13 for the 22nd 1 in 32 of ECC block address in #25 in the sector.As shown in Figure 14, in the second frame group of sector 26,1 seat information B21 (" 0 " or " 1 ") is filled out lid.
31 1 seat information is described similarly up to the sector.
As stated, in this example, wherein the quantity of the quantity of the sector of descriptor information and frame changes according to the bit position (that is, than low level or high bit) of piece ID.In this example, sub-information B0 is LSB, and sub-information B31 is HSB.
In being used for reading the system that is stored in the continuous data of CD for example, the piece ID of the data that read continuously is from sequentially increasing than low level.Between two adjacent block ID, the value of piece ID only poor " 1 ".Therefore, the several of piece ID that piece ID can only through reading confirm than low level, because remaining high bit can be estimated by the value that reads from the previous ID that is close to or by the value that reads from the piece ID that confirms prior to one of current block ID to count.In this case, several reading reliabilities than low level of piece ID are very important.In this example, piece ID is arranged on a plurality of sectors than low level, promptly arranges with the number greater than other high bit, and is shown in figure 14.Therefore, can improve the reading reliability of piece ID, thereby improve the reading efficiency of piece ID than low level.
In this example, piece ID has 32.The figure place of address information is not limited to 32, and can be according to data volume or the type of error correction code and the quantity that system needs arbitrarily that for example will be recorded on the CD media.
In this example, module unit is divided into 32 sectors (being 16 sectors during N=16) when N=32.The present invention is not limited to such number of sectors.
In this example, sub-information is recorded in 26 frames that are included in each sector during M=26.The present invention is not limited to the quantity of such frame.
In this example, sub-information after the swing that is modulated to zigzag fashion by record.The present invention is not limited to such wobble shape.Sub-information can be modulated to have the shape that shows among Fig. 4 or 7 for example after by record.
In this example, the piece mark is the cut-off parts of orbital groove.The present invention is not limited to the piece mark of this form.For example, the piece mark can be modulated to the swing with the shape that shows among Fig. 5 or 6 for example.
(example 10)
Figure 15 has shown according to routine 10 orbital groove 1502 of the present invention.Orbital groove 1502 can form in the CD media shown in Fig. 2 20 and replace the orbital groove 102 shown in Fig. 1.As shown in Figure 15, orbital groove 1502 has the different shape of block-by-block.In Figure 15, piece mark (identity marking) 1510 is cut-off parts in the orbital groove 1502 and the index that shows the front end of each piece of indication.
Each piece is divided into N sector 1525 (N=32 or 16), and each sector 1525 is divided into M frame # 0 to #25 (M=26).Each frame has the swing 1526 and 1527 of specified quantity with the mode in cycle.Swing 1526 and 1527 has different regulation shapes each other, and represents sub-information (" 0 ", " 1 " or " S ").One type sub-information (" 0 ", " 1 " or " S ") is represented by a kind of swing 1526 or 1527 of shape.The shape of sub-type of info and swing (swing 1526 and 1527) has relation one to one.More specifically, swing 1526 and 1527 all has common zigzag fashion, and has different raised shape (or rising gradient) and decline shape (or downward gradient).Swing 1526 or 1527 forms according to the type of sub-information (" 0 " or " 1 ").Sub-bit string is represented by the combination of swing 1526 and 1527.
Rising gradient and the difference in the downward gradient between swing 1526 and 1527 can easily be detected as follows by the differential push-pull detection signal.Scanning laser beam directive orbital groove 1502 has produced indication by the differential signal (be push-pull signal) of edge perpendicular to the difference between the light quantity of the surveyed area reception of the light receiving element of direction (radially) division of the orbital groove 102 of CD media 20.Like this, having obtained to have according to sub-information is the rising gradient that changes of " 0 " or " 1 " and the detection signal of downward gradient.Difference in rising gradient and the downward gradient for example can be through easily discerning the detection signal difference.
Like this, the size of the sub-type of info value that can obtain through the result as difference detects.But when using difference, noise contribution has increased naturally.In the CD media with relatively poor S/N ratio, faults is reasonably anticipated.In this example, swing each pattern of 1526 and 1527 is repeated repeatedly the reliability with enhancing detection.
Main information 1502 is recorded in the module unit 1541 from piece mark 1510 along orbital groove.Module unit 1541 has specified length, for example 64kB (or 32kB).Main information can be registered as record mark 28.Module unit is the unit that is used for information processing, and for example is the ECC piece.Module unit 1541 is divided into 32 sectors 1525 (or when N=16, being divided into 16 sectors 1525) when N=32.Each sector 1525 all is the sub-piece with 2kB length.Each sector 1525 is divided into 26 frame # 0 to #25 when M=26.At the front end of each frame # 0 to #25, the SYNC mark is registered as and is used to reproduce the synchronization of data signal.
Frame is the base unit that is recorded in the information on the orbital groove 1502.In Figure 15, frame # 0 is by label 1522 expressions, and frame # 1 is by label 1523 expressions.Like frame 1522 and 1523 examples, each frame comprises in advance one type the swing that the mode with the cycle forms.By this way, 1 sub-information " 0 ", " 1 " or " S " are described in each frame 1522 and 1523.Sub-information is described to SYNC information.Be included at least a portion that 26 (M=26) sub-message block in each sector 1525 have been indicated the piece ID (address information) of corresponding module unit 1541.
1 seat information is assigned to a frame, and such 32 piece ID are filled out to be covered in 32 continuous frames (sub-message block).
Except the information of indication address, piece ID can comprise error correction code, error detection code or the parity check code etc. that are used to proofread and correct or detect detection signal.
As stated, each 1 information distributed in 32 frames through combination of piece ID is represented.Be that whole ID represented by 32 seat message block.
When the ECC piece had the length of 64kB, each piece comprised 32 sectors.Therefore, a piece comprises 832 frames (=32 * 26).When piece ID by 32 frames (a frame group) when representing, piece ID can be repeated (being that identical piece ID describes) 26 times in 26 frame groups in module unit 1541.
When the ECC piece had the length of 32kB, each piece comprised 16 sectors.Therefore, a piece comprises 416 frames (=16 * 26).When piece ID by 32 frames (a frame group) when representing, piece ID can be repeated (being that identical piece ID describes) 13 times in 13 frame groups in module unit 1541.
By this way, piece ID is represented by 32 frames (a frame group), and this ID piece is described many times in module unit 1541.
Like this, piece ID confirms through only reading 32 frames at last.Therefore, can carry out aftertreatment (data read, data recording etc.) soon.
Because piece ID is repeated repeatedly in module unit 1541, can strengthen the reading reliability of piece ID.
Describe with reference to Figure 16 as top, can comprise the information that is different from piece ID, although the number of times of repeatable block ID has reduced in this case in module unit 1541.For example, the sequence number of piece ID can be included in the sub-message block.Sequence number can be used for last definite address number on most basis.In addition, such number the useful information that is used for signal Processing is provided, for example, which sector 1525 in the piece be read now or piece in which sub-message block be incorrect.
Have in the situation of a plurality of recording surfaces or layer at CD media, the sequence number of recording layer can be included in the sub-message block.By this way, recording surface can easily be identified.For example, in four same sequence number among Figure 16 can use the sequence number of recording layer to substitute.Like this, recording surface can easily be discerned.
In this example, piece ID has 32.The figure place of address information is not limited to 32, but can be the quantity according to any needs of type that for example will be recorded in data volume or error correction code on the CD media and system.
In this example, module unit is divided into 32 sectors (or when N=16 be divided into 16 sectors) when N=32.The present invention is not limited to such number of sectors.
In this example, sub-information is recorded in 26 frames that are included in each sector when M=26.The invention is not restricted to such number of frames.
In this example, sub-information is being modulated to zigzag swing back by record.The present invention is not limited to such wobble shape.Sub-information can be by record after being modulated to the swing with shape shown in Fig. 4 or 7 for example.
In this example, the piece mark is the cut-off parts of orbital groove.The present invention is not limited to the form of this mark.For example, the piece mark can be modulated to and have the for example swing of the shape shown in Fig. 5 or 6.
(example 11)
Figure 22 has shown according to routine 11 orbital groove 1602 of the present invention.Orbital groove 1602 can form in the CD media shown in Fig. 2 20 and come the orbital groove 102 shown in the alternate figures 1.As shown in Figure 22, orbital groove 1602 has the different shape of block-by-block.
With reference to Figure 22, be divided into 4 PID part PID0 to PID3 as the ECC piece of the unit that forms block address.PID part PID0, PID1, PID2 and PID3 are indicated by label 2202,2204,2206 and 2208 respectively.PID part 2202,2204,2206 and 2208 front are respectively extentions 0 to 3. Extention 0,1,2 and 3 is indicated by label 2201,2203,2205 and 2207 respectively.Extention 2201,2203,2205 and 2207 each all comprise piece mark (identity marking) 2220.In Figure 22, piece mark (identity marking) the 2220th, the cut-off parts in the orbital groove 1602 and having shown is indicated the index of the front end of each PID part.
As stated, piece is divided into four PID parts (N=4), and each PID part also is divided into M frame (M=52).Each frame (for example, each frame 2222,2223,2224 and 2225) from piece mark 2220 along orbital groove 1602 have specified quantity swing 2226,2227,2229 or 2230. Swing 2226,2227,2229 and 2230 has the regulation shape that differs from one another, and represents sub-information (" 0 ", " 1 ", " S " or " B ").One type sub-information (" 0 ", " 1 ", " S " or " B ") is represented by a kind of wobble shape 2226,2227,2229 or 2230.The shape of sub-type of info and swing ( swing 2226,2227,2229 or 2230) is to concern one to one.More specifically, swing 2226,2227 and 2228 all has common zigzag fashion, and swing 2230 has sine wave shape.Swing 2226,2227,2228 or 2230 has different raised shape (or rising gradient) and decline shape (or downward gradient).Swing 2226,2227,2229 or 2230 forms according to the type of sub-information (" 0 ", " 1 ", " S " or " B ").
Rising gradient and the difference in the downward gradient in the swing 2226,2227,2229 and 2230 can easily detect as follows through the differential push-pull detection signal.Scanning laser beam directive orbital groove 1602 has produced indication by the differential signal (be push-pull signal) of edge perpendicular to the difference between the light quantity of the surveyed area reception of the light receiving element of direction (radially) division of the orbital groove 1602 of CD media 20.Like this, having obtained to have according to sub-information is the rising gradient that changes of " 0 ", " 1 ", " S " or " B " and the detection signal of downward gradient.Difference in rising gradient and the downward gradient for example can be through easily discerning the detection signal difference.
Like this, sub-type of info can detect through the size of the value that obtains as difference result.But when using difference, noise contribution has increased naturally.In the CD media with relatively poor S/N ratio, faults is reasonably anticipated.In this example, swing each pattern of 2226,2227,2229 and 2230 is repeated repeatedly the reliability with enhancing detection.
The content of PID part will be described.Each PID comprises that partly each all has 52 frames of 372 bytes, has the length (=372 bytes * 52) of 19344 bytes like this.PID part 2202 (PID0) comprises 2210,16 IED information 2211 of 2209,24 block address information of 8 pid informations and 4 bit address marks (AM) 2212.
Number (that is, whether the PID part is PID0, PID1, PID2 or PID3) of the PID part that pid information 2209 expressions are corresponding.Block address information 2210 is to distribute to the address information of each piece, and in PID3, is common at the PID0 of identical ECC piece.IED information 2211 is the ID error detection codes that produce from pid information 2209 and block address information 2210.
Because sub-information " B " only is used to address mark, address mark differentiates with the part with other information easily.Like this, accuracy of detection that can the enhance address mark.
The content of extention will be described.Do not resemble the PID part, each extention has the piece mark 2220 that is recorded in advance on the dish.Piece mark 2220 for example is the mirror image mark, and it is the cut-off parts in the orbital groove 1602 shown in the Figure 17 that is described below.It is the front end of ECC piece before and also that extention 2201 is positioned at PID part 2202 (PID0).
Spendable false data for example can be to comprise the 4T mark of simple repetition and the information in 4T space.Like this, the record mark of single frequency component and piece mark can separate on frequency, so that detect more easily.Like this, the piece mark can be more easily to be detected.
As stated, an ECC piece is divided into 4 PID parts, and each PID part front is an extention.In each extention, formed the piece mark of the front end of indication PID part.In the ECC piece, repeat such PID part.Because piece ID finally confirms that through only reading 1/4 of ECC piece aftertreatment (data read, data recording etc.) can be carried out apace.
Because piece ID repeats repeatedly, strengthened the reading reliability of piece ID in the ECC piece.
In this example, an ECC piece is divided into 4 PID parts.The present invention is not limited to the PID part of such quantity.An ECC piece can be divided into a plurality of PID parts of arbitrary integer.
In this example, sub-information after the swing that is modulated into zigzag fashion by record.The present invention is not limited to such wobble shape.Sub-information can be by record after being modulated into the swing with the shape that shows among Fig. 4 or 7 for example.
In this example, the piece mark is the cut-off parts of orbital groove.The present invention is not limited to the form of such piece mark.For example, the piece mark can be modulated into the swing with the shape that shows among Fig. 5 or 6 for example.Perhaps, the piece mark can be modulated into the swing with the shape that shows among Figure 17,18 or 19 for example.
(example 12)
Figure 17 has shown according to routine 12 orbital groove 1702 of the present invention.Orbital groove 1702 assigns to obtain through the appendix of revising the orbital groove 1602 that shows among Figure 22.
In Figure 17, each in label 1701 expression extentions 0, the 1705 expression extention 1 to 3.Orbital groove 1702 with shape of continuous a plurality of sinusoidal wave shape swings forms in dish in advance, and each extention has the length of 93 bytes.Extention comprises 9 swings.Extention 0 has each all as the piece mark 1703 and 1704 of the cut-off parts of orbital groove 1702, and each all has the piece mark 1706 as the cut-off parts of orbital groove 1702 extention 1 to 3.
Like example described in 11, extention 0 to 3 is prior to separately PID part and can be the front end of address information.Therefore, gratifying high-caliber reading reliability to extention 0 to 3 need be provided.Be marked at piece and (for example repeat in the extention repeatedly; Twice) situation in; Promptly in extention, provide in the situation of a plurality of identical piece marks; Even when a piece mark because external disturbance for example noise or fault and can not be to be detected the time, the piece mark also can be to be detected with high-caliber reliability.Be repeated in the situation repeatedly with specific interval at the piece mark, correct piece mark can easily be different from the piece mark of the vacation that is produced by noise, fault etc.
The quantity of the piece mark that in extention 0 to 3, forms can be identical with shape.For example, piece mark 1703 can provide in each of extention 0 to 3.Perhaps, as shown in Figure 17, the quantity of the piece mark that in extention 0 to 3, forms and shape can be different between extention 0 to 3.For example, the quantity of the piece mark in the extention 0 can be different with the quantity of piece mark in the extention 1 to 3.In this case, the piece mark than greater number in other extentions can be provided in extention 0, to strengthen to reliability of reading as the extention 0 of the front end of ECC piece.In Figure 17, two piece marks 1703 and 1704 are provided in extention 0, and in each of extention 1 to 3, a piece mark 1706 are provided.When the quantity of the piece mark that in extention 0, forms or shape were different from that extention 1 forms in 3, the piece mark in the extention 0 can easily be different from the piece mark of other extentions.Like this, can read the whole of PID part and finally confirm the front end address of ECC piece.
In Figure 17, in identical position a plurality of marks are provided according to the phase place of swinging.Perhaps, as shown in Figure 18, the piece mark can provide (piece mark 1703 and 1804) in the position that 180 degree with swing differ.
In this example, each piece mark has the physical length of 2 bytes, but the present invention is not limited to such length.Can select based on the definite optimal design length of spot diameter.For example, as shown in Figure 19, the piece mark can have the physical length of 4 bytes.
When the piece mark can have the physical length of 4 bytes as shown in Figure 19, the physical length of the piece mark in the extention 0 can with extention 1 to 3 in different.Like this, the reading reliability of the piece mark in the extention 0 can be enhanced.In the length of the piece mark that in extention 0, forms and extention 1 to 3 formation not simultaneously, the piece mark in the extention 0 can easily be different from the piece mark of other extentions.
With reference to Figure 20, with describing the CD media that piece mark wherein is the pre-pit that in the convex region, forms.Figure 20 has shown the orbital groove 2002 in such CD media.Orbital groove 2002 assigns to obtain through the appendix of revising the orbital groove 1602 that shows among Figure 22.In Figure 20, each in label 2001 expression extentions 0, the 2005 expression extention 1 to 3.Form in the convex region 2003 of piece mark 2004 between the adjacent part of the orbital groove 2002 of extention 0.Piece mark 2004 is the cut-off parts in the convex region 2003.When with luminous point 2007 scan track grooves 2002, piece mark 2004 from the off-centring of luminous point 2007 state of half track scanned.
Can use indication to detect at the piece mark 2004 that forms on the convex region 2003 as shown in Figure 20 by the differential signal (that is push-pull signal) of the difference between the light quantity of two surveyed areas receptions that separate of light receiving element.Use such differential signal to detect above-mentioned PID part.Block address can use similar differential signal to detect.Therefore, block address and PID part can be to be detected and need not differential signal be switched to summation signals.Like this, the input part can have simpler circuit arrangement.
Provide in the extention of the piece mark 2004 in similar Figure 20 in the situation of a plurality of identical piece marks, can there be difference in the quantity of piece mark in extention 0 and between in extention 1 to 3.
For example, when extention 0 comprises that two piece marks 2204 and extention 1 each in 3 all have a piece mark 2204, can strengthen the reading reliability of the piece mark in the extention 0.When the quantity of the piece mark that in extention 0, forms is different from when extention 1 forms in 3, the piece mark in the extention 0 can easily be different from the piece mark of other extentions.
In each extention, false data can be by record to increase the accuracy of detection of piece mark.
Spendable false data for example can be to comprise the 4T mark of repetition simply and the information in 4T space.Like this, the record mark of single-frequency component and piece mark can separate on frequency, so that detect more easily.Like this, the piece mark can be more easily to be detected.
(example 13)
Figure 21 has shown the PID part 2100 according to routine 13 CD media of the present invention.PID part 2100 obtains to PID3 through revising the PID0 shown in Figure 22.PID part 2100 comprises that each all has 52 frames of 372 bytes, therefore has the length (=372 bytes * 52) of 19344 bytes.PID part 2100 comprises 2210,16 IED information 2211 of 2209,24 block address information of 8 pid informations and as 4 bit address marks (AM) 2212 of identity marking.Pid information 2209, block address information 2210 and IED information 2211 are similar to the counterpart in the example 11.
In the address mark 2105 of the address mark 2101 of PID0, the address mark 2103 of PID1 and PID2 each all comprises " SBBS " in the address mark 2107 that is different from PID3.Because the content of the address mark of PID3 is different from the content of PID0 to the address mark of PID2, so the address mark of PID3 easily is different from the address mark of other PID parts.Like this, increased the accuracy of detection of the address mark of PID3.That is, the front end of piece can be more easily detected by such various combination of sub-information.
PID0 can be formed (that is the like combinations of sub-information) by identical shaped swing to the address mark of PID2.For example, PID0 can comprise " SBBS " to the address mark of PID2.
The address mark with information of representing with the swing of orbital groove 2101,2103,2105 and 2107 shown in Figure 21 can use indication to be detected by the differential signal (that is push-pull signal) of the difference between the light quantity of two surveyed areas receptions that separate of light receiving element.Use such differential signal to detect pid information 2209, block address information 2210 and IED information 2211.Block address or identity marking before each PID part can use similar differential signal to detect.Therefore, the front end of the front end of each PID part, piece and block address can be to be detected and need not switch to summation signals and differential signal to differential signal.Like this, the input part can have simpler circuit arrangement.
In order to increase the accuracy of detection of address mark 2101,2103,2105 and 2107, false data can be recorded in the part corresponding to the orbital groove of address mark.
Spendable false data for example can be to comprise the 4T mark of repetition simply and the information in 4T space.Like this, the record mark of single-frequency component and piece mark can separate on frequency, so that detect more easily.Like this, the piece mark can be more easily to be detected.The address mark that shows among Figure 21 can use above-mentioned differential signal to detect.Therefore, address mark can detect to substitute false data through record right user data in corresponding to the part of the orbital groove of address mark.
Identity marking in the extention and address mark can make up use.For example, the identity marking in the extention is the mirror image mark of 2 bytes, provides with very high-caliber positional precision like this.Therefore, such combination uses the precision that can be increased in the position of opening entry when linking for writing extraly or rewriteeing.
(example 14)
Figure 23 A has shown according to routine 14 optical disc apparatus 2300 of the present invention.Optical disc apparatus 2300 reproduces the sub-information of combination record on CD media of utilizing a plurality of wobble shapes of describing in the example of front, so that record and reproduce main information.Figure 23 is the process flow diagram that is presented at the operation of the optical disc apparatus 2300 among Figure 23 A.
With reference to Figure 23 A and 23B, the light beam that semiconductor laser 2302 is launched is collected on the information sides of CD media 2301 through collimation lens 2303, beam splitter 2304 and optical convergence part 2305.Collected then light is reflected and reflects and be collected in optical detection part through optical convergence part 2305, beam splitter 2304 and light collecting lens 2306 by CD media 2301 and divides on 2307.Optical detection part divide 2307 light receiving element A, B, C and D each all come output voltage signal as reproducing signal 2320 (step S100) according to the total amount of the light that receives.
Reproducing signal calculating section 2308 utilizes and adds, subtracts, takes advantage of or remove and handle reproducing signal 2320.Be sent to focal position control section 2309 from FE (focusing error) signal 2321 of the such result of calculation of the conduct of reproducing signal calculating section 2308 outputs.Be sent to tracing positional control section 2310 from TE (tracking error) signal 2322 of the such result of calculation of the conduct of reproducing signal calculating section 2308 outputs.Be sent to sub-information detection section 2312 and reproducing signal processing section 2314 (step S200) from RF (radio frequency) signal 2323 of the such result of calculation of the conduct of reproducing signal calculating section 2308 outputs.
Focal position control section 2309 is through the driven driver 2311 according to 2321 outputs of FE signal, so that be controlled at the focal position of the luminous point on the information sides of CD media 2301.Tracing positional control section 2310 is through the driven driver 2311 according to 2322 outputs of TE signal, so that be controlled at the tracing positional of the luminous point on the information sides of CD media 2301.Luminous point according to focal position and tracing positional control is used to read mark and the space on pre-pit or the CD media 2301.As the mark in a kind of CD media 2301 that differs type and space with different reflectance reflected light.Like this, the information that is recorded on the CD media 2301 is read.In the situation of push-pull system, TE signal 2322 is the output that is divided the difference between the total amount of the light that two light receiving parts of 2307 receive by optical detection part.Each of these two light receiving parts all comprises among four light receiving element A, B, C and the D two and defined by a line that is parallel to tracking direction.Here, difference is (A+D)-(B+C).RF signal 2323 be the light that receives by four light receiving element A, B, C and D total amount and output.Here and be (A+B+C+D).In the situation of astigmatism system, FE signal 2321 is the output of (A+C)-(B+D).
Sub-information is reproduced with following mode.
The TE signal 2322 that is produced by reproducing signal calculating section 2308 is outputed to sub-information detection section 2312 and is used to decipher sub-information with RF signal 2323.The sub-information that is detected by sub-information detection section 2312 is outputed to address information/management information processing section 2315 and Laser Driven part 2313.
As shown in Figure 34, sub-information detection section 2312 comprise reference clock produce part 3410, level amplitude limit pulse signal produce part (level-sliced pulse signal generationsection) 3411, as the 3rd BPF (BPF.) 3403 and the sub-information generation section 3412 of piece marking signal test section.
Reference clock produces part 3410 and comprises a BPF3401 and synchronization detecting section 3404.Level amplitude limit pulse signal produces part 3411 and comprises the 2nd BPF3402, comparer 3405 and integrator 3408.Sub-information generation section 3412 comprises most confirm part 3406 and sub-decoding of information devices 3407.
The one BPF3401 is designed to have a such filter constant, so that extract the swinging signal that is modulated into TE signal 2322.Based on TE signal 2322, the one BPF3401 produce comprise have with orbital groove in the output signal 3401 ' of the synchronous sine-shaped fundametal compoment of swing.Synchronization detecting section 3404 receives output signals 3401 ' and the reference clock signal 3404 ' (step S300) of the signal Synchronization that produces and read from CD media 2301 (Figure 23 A).Reference clock signal 3404 ' is used to the step information signal.
The 2nd BPF3402 is the difference filter that is used to detect the steep limit of the zig-zag that is modulated to TE signal 2322.According to the phase place (or direction) on steep limit, the 2nd BPF3402 produces a differential pulse signal 3402 ' up or down.Differential pulse signal 3402 ' is outputed to comparer 3405.Comparer 3405 will be compared through the adjusting limiting voltage and the differential pulse signal 3402 ' of integrator 3408 feedbacks; And produce level amplitude limit pulse signal 3405 ', the upwards state of differential pulse signal 3402 ' is " 0 " and " 1 " (step S400) with downward state.Level amplitude limit pulse signal 3405 ' is outputed to most parts 3406 of confirming.
The 3rd BPF3403 filtering RF signal 2323 is to detect piece marking signal 3403 ' and finally to confirm the front end (step S500) of sub-message block.The piece marking signal 3403 ' that is detected is outputed to most parts 3406 of confirming, it is synchronous that the piece marking signal 3403 ' that is detected there is used to timing.
Based on the synchronizing signal that produces from reference clock signal 3404 ' and piece marking signal 3403 ', in specific time interval, most quantity of confirming " 0 " pulse with " 1 " pulse of part 3406 comparative level amplitude limit pulse signals 3405 '.Then, most definite parts 3406 output to sub-decoding of information device 3407 to the most pulses that in specific time interval, account for all pulses as level sliced data signal 3406 '.Whether sub-decoding of information device 3407 inspections are wrong in level sliced data signal 3406 '.When in level sliced data signal 3406 ', not having mistake, sub-decoding of information device 3407 output level sliced data signals 3406 ' are as sub-information signal 3420 (for example, address information) (step S600).
Through said process, the sub-information signal 3420 that is recorded on the CD media 2301 is reproduced.Based on the address information in the sub-information signal 3420 that is included in reproduction, optical disc apparatus 2300 can confirm that which piece of the information in orbital groove is reproduced now.When the main information of record on CD media 2301, confirm the address of adjacent piece before the piece that will write down main information, doping next piece then is the piece that will write down main information.Like this, can be from the front end opening entry master information of the piece of object block.
(example 15)
With Lead-In Area and the leading-out zone described according to routine 15 CD media of the present invention.
With reference to Figure 30, the Lead-In Area and the leading-out zone of conventional CD media 3001 will be described.CD media 3001 included Lead-In Area 3003, leading-out zone 3004 that in periphery area, provides that provides in the neighboring area and record and the reproduction regions that between Lead-In Area 3003 and leading-out zone 3004, provides.In Figure 30, part 3007 has been exaggerated.Lead-In Area 3003 has preformed pre-pit 3006.Through reading in poor between the reflectance between pre-pit and the reserve area, the information of " 0 " and " 1 " is read.Lead-In Area 3003 has the management information of record in advance.For example, management information comprises the information of dish reproducing power information, servo-information and optimal recording power.Record and reproduction regions 3004 have preformed orbital groove 3002.Through carrying out tracking Control along orbital groove 3002, but overwriting data is recorded in the orbital groove 3002 or the data that are recorded in the orbital groove 3002 are wiped free of.
In the CD media 3001 of routine, Lead-In Area 3003 and leading-out zone 3005 and record and reproduction regions 3004 are different at the vpg connection of the shape of pre-pit 3006 and orbital groove 3002.Therefore, two trackers have to use with switching way.More specifically, the tracking of differential phase system (DPD) is used to Lead-In Area 3003 and leading-out zone 3005, utilizes the tracking of push-pull system of the diffraction of orbital groove 3002 to be used to record and reproduction regions 3004.
In of the present invention routine 15, provide to allow same tracker to be used to the CD media of Lead-In Area, leading-out zone and record and reproduction regions.Such CD media can be simplified tracking operation.
Below, with the CD media of describing according to example 15.
Figure 24 has shown the CD media 2400 according to example 15.CD media 2400 comprises Lead-In Area 2401, record and reproduction regions 2402 and leading-out zone 2403.Lead-In Area 2401 has the management information of record in advance with leading-out zone 2403.In Lead-In Area 2401 and the leading-out zone 2403 each can further have the zone that is different from the zone that is used for user data, promptly is used for the zone of test data sheet.In Figure 24, Lead-In Area 2401 can provide to having apart from the zone at the edge of the circle of the radius of the center 24.02mm of CD media 2400 from having apart from the edge of the circle of the radius of the center 22.59mm of CD media 2400.Lead-In Area 2401 comprises the disk management zone (from edge with circle of the radius of 22.59mm apart from the center to the zone with edge of the circle of the radius of 24.000mm apart from the center) of the management information that has in advance record.Lead-In Area 2401 can also comprise the rewritable area that is used for test data sheet on CD media or driver.Rewriting is under an embargo on the information principle in the disk management zone.In this example, Lead-In Area 2401 means the disk management zone with leading-out zone 2403.
With reference to Figure 36, with describing the orbital groove 3631 that in the recording surface of CD media 2400, forms in a spiral manner.Orbital groove 3631 forms in Lead-In Area 2401 and leading-out zone 2403.Orbital groove 3631 has the swing 3626,3627 and 3628 of regulation shape with periodic mode.Swing 3626,3627 and 3628 has the shape of the regulation that differs from one another, and representes sub-information (" 0 ", " 1 ", " S " or " B ").One type sub-information (" 0 ", " 1 ", " S " or " B ") is represented by a kind of wobble shape 3626,3627 or 3628.The shape of sub-type of info and swing ( swing 3626,3627 or 3628) is to concern one to one.More specifically, the swing 3626 that has a common zigzag fashion with 3627 with have common sine-shaped swing 3628 and have as shown in Figure 36 different raised shape (or rising gradient) and decline shape (downward gradient).Management information is represented by the sub-bit string shown in the combination of swing 3626,3627 and 3628.
The rising gradient in swing 3626,3627 and 3628 and the difference of downward gradient can easily be detected as follows by the differential push-pull detection signal.The scanning laser beam direct projection has produced indication by the differential signal (that is, push-pull signal) of edge perpendicular to the difference between the light quantity of the surveyed area reception of the light receiving element of direction (radially) division of the orbital groove 3631 of CD media 3400 to orbital groove 3631.Like this, having obtained to have according to sub-information is the rising gradient of " 0 " or " 1 " variation and the detection signal of downward gradient.For example, the difference of this rising gradient and downward gradient can easily be confirmed by the difference of detection signal.The size of the value that sub-type of info can be obtained by the result as difference detects.In Lead-In Area 2401 and leading-out zone 2403, sub-information is used as the management information of record and reproduction regions 2402.
In Figure 36, comprise that the frame 3620 of piece mark 3630 has preformed 9 swings 3628 to indicate sub-information " B ".Each of 52 frames 3621 behind piece mark 3630 has 36 swings 3626 and 3627 altogether to indicate sub-information " 0 " and sub-information " 1 ".In the situation of the CD media 2400 in this example of CLV form, the physical frequencies that forms swing 3626 and 3627 is constant in fb to outmost track from innermost track.
With reference to Figure 25 A and 25B, Lead-In Area 2401 will compare with record and reproduction regions 2402 with leading-out zone 2403.
Figure 25 A has shown the orbital groove 2502 in record and the reproduction regions 2402.The frame 2510 that comprises piece mark 2520 has preformed 9 swing 2528 (sinusoidal waveforms) to indicate sub-information " B ".Each of 52 frames 2511 behind piece mark 2520 has altogether 36 swing 2526 and 2527 (zig-zags) to indicate sub-information " 0 " and sub-information " 1 ".In the situation of the CD media 2400 in this example of CLV form, form physical frequencies (1 swing: 124 channels bits) constant of swing 2526,2527 and 2528 at fa from innermost track to outmost track.The oscillating quantity of swing is constant in 22.5nmpp.
The record and reproduction regions 2402 in, record mark after modulation by record.In this example, the signal that is restricted to the 46D modulation of 2T (minimum length) is recorded in the orbital groove 2502 cycle of operation.Channel bit length is 0.0771 μ m in this.Be used to write down laser with reproducing signal and have 405nm (+10nm, the mean value of-5nm) wavelength and 0.85 ± 0.01 numerical aperture (NA).
Figure 25 B has shown the orbital groove 3631 in Lead-In Area 2401 and the leading-out zone 2403.The details of orbital groove 3631 such as above-mentioned described with reference to Figure 36. Swing 3626,3627 in formation Lead-In Area 2401 and the leading-out zone 2403 and 3628 physical frequencies fb are higher 10 times than the physical frequencies fa of the swing 2526,2527 in formation record and the reproduction regions 2402 and 2528.Through the frequency configuration De Genggao of swing, can increase the quantity of information that is included in the unit area.
In Lead-In Area 2401 and leading-out zone 2403,1 seat information is indicated in a plurality of swings.Between Lead-In Area 2401 and leading-out zone 2403 and record and reproduction regions 2402, indication can be different as the quantity of the swing of 1 information of the minimum unit of sub-information.Compare with reproduction regions 2402 with record, through reducing the quantity of the swing of 1 information of indication in Lead-In Area 2401 and the leading-out zone 2403, the swing of display disc management information forms in can be in Lead-In Area 2401 and the leading-out zone 2403 relatively little zone effectively.
As stated, Lead-In Area 2401 and leading-out zone 2403 comprise the orbital groove 3631 of the wobble shape that forms with the cycle form with regulation, and in orbital groove 3631 each wobble shape indicating panel management information.Because swing is also with formation in the orbital groove 2502 of cycle form in being included in record and reproduction regions 2402, so the tracking of identical systems can be used for whole CD media 2400.Because high 10 times in Lead-In Area 2401 and leading-out zone 2403 in the frequency ratio record of swing and the reproduction regions 2402, and a swing indicates 1 seat information, so the quantity of information that is recorded in the unit area has increased.Like this, the swing of display disc management information can be recorded in the limited zone in Lead-In Area 2401 and the leading-out zone 2403 effectively.
In this example, high 10 times in the frequency ratio record of the swing in Lead-In Area 2401 and leading-out zone 2403 and the reproduction regions 2402, the present invention is not limited to such numerical value.
The swing of zigzag fashion has been described in this example.Be not limited to such shape according to the present invention's swing.
In this example, 1 information of a swing indication.A plurality of swings can be indicated 1 information.
Perhaps, shown in Figure 26 A and 26B, the frequency f b of the swing in Lead-In Area 2401 and the leading-out zone 2403 can be lower than the frequency f a of the swing in record and the reproduction regions 2402.By this way, the S/N ratio in the time of can increasing swing in detecting Lead-In Area 2401 and leading-out zone 2403.Like this, the reliability of the management information in Lead-In Area 2401 and leading-out zone 2403 can be enhanced.
In this example, with swing in the leading-out zone 2403 identical frequency is arranged at Lead-In Area 2401, the frequency of the swing in this frequency and record and the reproduction regions 2402 is different.Only be recorded in the situation in the Lead-In Area 2401 in management information, only the frequency of the swing in Lead-In Area 2401 can be different with the frequency of swing in record and the reproduction regions 2402.
In this example, CD media 2400 comprises Lead-In Area 2401 and leading-out zone 2403.Except that record and reproduction regions 2402, CD media 2400 can only comprise Lead-In Area 2401 or only comprise leading-out zone 2403.
(example 16)
Figure 27 A and 27B have shown the orbital groove 2502 and 2731 according to routine 16 CD media of the present invention.
Identical at the orbital groove 2502 shown in Figure 27 A with the top orbital groove of describing with reference to Figure 25 A 2502, be formation in the record of the CD media shown in Figure 24 2400 and the reproduction regions 2402.Orbital groove 2731 shown in Figure 27 B can form in Lead-In Area 2401 and leading-out zone 2403.
Comprise that the frame 2510 of piece mark 2520 has the swing 2528 ' of 9 sine wave shapes, to indicate sub-information " B ".Follow in 52 frames 2511 after piece mark 2520 each to have the swing 2526 ' and 2527 ' of 36 zigzag fashions altogether, to indicate sub-information " 0 " and sub-information " 1 ".Under the situation of the CD media 2400 of CLV form in this example, the physical frequencies that forms swing 2526,2527 and 2528 is constant to the outermost track from inner track to be fa (1 swing: 124 channels bits).The wobble amplitude of the oscillating quantity of expression swing is constant to be Ca.
Figure 27 A and the orbital groove shown in the 27B different with shown in Figure 25 A and the 25B on the wobble amplitude of the oscillating quantity of expression swing.Wherein, the wobble amplitude of the orbital groove 2502 in record among Figure 27 A and the reproduction regions 2402 is Ca, and the Lead-In Area 2401 among Figure 27 B and the wobble amplitude of the orbital groove 2731 in the leading-out zone 2403 are Cb, wherein Cb>Ca.
Swinging signal amplitude and oscillating quantity during reproduction are proportional.Therefore, when the wobble amplitude of Lead-In Area 2401 and leading-out zone 2403 during greater than the wobble amplitude in record and the reproduction regions 2402, the S/N ratio when having improved in reproduction wobble detection.Like this, can strengthen the reading reliability of management information.
In this example, CD media 2400 comprises Lead-In Area 2401 and leading-out zone 2403.Except that record and reproduction regions 2402, CD media 2400 can only comprise Lead-In Area 2401 or only comprise leading-out zone 2403.
(example 17)
Figure 28 A and 28B have shown the orbital groove 2502 and 2831 according to routine 17 CD media of the present invention.
In Figure 28 A, swing 2826 usefulness CLV forms form, and the physical frequencies of swing 2826 is constant from innermost track to outmost track.Therefore, the phase place of two adjacent swings 2826 squints according to orbital position and radial position.When reproducing, the influence of the interference of adjacent orbit becomes obviously owing to differing, and is changed on differing by the mode of the detected swinging signal amplitude of reproducing signal with the cycle.At the swinging signal amplitude that changes is that the S/N ratio has reduced in the swing of minimum.
There are these points different with the orbital groove shown in the 28B with the orbital groove shown in Figure 25 A and the 25B at Figure 28 A.In orbital groove 2831, swing 2827 is formed by the CAV form, the swing 2827 between such two adjacent orbits differ pi/2 always.
When the swing in record and reproduction regions 2402, Lead-In Area 2401 and the leading-out zone 2403 was formed by the CAV form, the swinging signal amplitude when reproducing was a constant.Like this, strengthened the detecting reliability of swing.
In this example, differing is pi/2.Be to be that swing has precipitous edge usually on the position of π on 0 the position and in decline place phase place at rising portion in phase place.When position arrangement brink, can reduce the influence of crosstalking from adjacent orbit at pi/2 and 3 * pi/2 and pi/2 * (2n+1) (n is an integer).Differ and be not limited to such value, and can be any other constant value.
Swing in record and reproduction regions 2402, Lead-In Area 2401 and leading-out zone 2403 can substitute the CAV form by the ZCLV form that in DVD-RAM, uses and form.
Forms swing through substituting the CLV form, from writing down and the reliability of the address information of reproduction regions 2402 reproductions can be enhanced by CAV form or ZCLV form.
In this example, CD media 2400 comprises Lead-In Area 2401 and leading-out zone 2403.Except that record and reproduction regions 2402, CD media 2400 can only comprise Lead-In Area 2401 or only comprise leading-out zone 2403.
(example 18)
Figure 29 A and 29B have shown the orbital groove 2502 and 2931 according to routine 18 CD media of the present invention.
The track space (two adjacent orbit between distance) that has TPa at the orbital groove shown in Figure 29 A 2502.Main information is recorded in the orbital groove 2502 through the groove register system.
Different on track space with the orbital groove shown in Figure 25 A and the 25B at Figure 29 A with the orbital groove shown in the 29B.Wherein the track space of the orbital groove 2502 in record and the reproduction regions 2402 is TPa among Figure 29 A, and the track space of the orbital groove 2931 among Figure 29 B in Lead-In Area 2401 and the leading-out zone 2403 is TPb, wherein TPb>TPa.For example; When being recorded in and having track space TPa=0.32 μ m the information on the groove register system CD media of (two adjacent grooves between distance) when wavelength and 0.85 NA that use has a 405nm reproduce as the luminous point of optical constant, the amplitude of the tracking error signal that is obtained by push-pull system is quite little.When track space increased, therefore the amplitude of tracking error signal increased.When the oscillating quantity of swing when constant, the swinging signal amplitude increases with the amplitude of tracking error signal basically pro rata.Therefore, when track space increased, the swinging signal amplitude during reproduction had increased.
Like this, compare with track space TPa in the reproduction regions 2402 with record, through increasing the track space TPb in Lead-In Area 2401 and the leading-out zone 2403, the S/N ratio during wobble detection can be enhanced.
Perhaps, < during TPa, the swing of display disc management information can be recorded in the limited zone in Lead-In Area 2401 and the leading-out zone 2403 effectively as TPb.
In example 15 to 18, the hunting frequency in Lead-In Area 2401 and the leading-out zone 2403, wobble amplitude, with respect to the swing of the phase place in the adjacent orbit differ, different in track space etc. and record and the reproduction regions 2402.Lead-In Area and leading-out zone 2401 and 2403 with record and reproduction regions 2402 between a plurality of such factor can be different.
In the track in the disk management zone of Lead-In Area 2401 and leading-out zone 2403, do not form record mark.Like this, the S/N ratio of the reproducing signal in disk management zone can be increased, and consequently, the reading reliability in disk management zone can be enhanced.
In this example, CD media 2400 comprises Lead-In Area 2401 and leading-out zone 2403.Except that record and reproduction regions 2402, CD media 2400 can only comprise Lead-In Area 2401 or only comprise leading-out zone 2403.
(example 19)
Figure 35 has shown the orbital groove 3531 according to routine 19 CD media of the present invention.
Can in the Lead-In Area of the CD media shown in Figure 24 2,400 2401 and leading-out zone 2403, form at the orbital groove shown in Figure 35 3531.
Different at the orbital groove shown in Figure 35 3531 with the orbital groove 3631 shown in Figure 25 B, because having with the mode that once writes, orbital groove 3531 is recorded in the unifrequency record mark in Lead-In Area 2401 and the leading-out zone 2403 (that is, orbital groove 3531).For example, the record mark that has the record channel bit length of 0.0771 μ m has the 8T record mark that in the orbital groove with management information 3531, repeats and the signal in 8T space comes record with the mode that once writes through providing.Like this, information can be reproduced by the transcriber (device of DPD system keeps track) of the tracking that does not allow push-pull system.Compatibility between the device can improve.
In this example, CD media 2400 comprises Lead-In Area 2401 and leading-out zone 2403.Except that record and reproduction regions 2402, CD media 2400 can only comprise Lead-In Area 2401 or only comprise leading-out zone 2403.
(example 20)
Figure 31 has shown the orbital groove 3101 according to routine 20 CD media of the present invention.
In example 1, piece mark 210 provides through cutting off orbital groove 102.In this example, piece mark 3104 forms through the phase place of the swing 3126 in the orbital groove 3101 that reverses partly.The piece mark 3104 that forms does not so cut off orbital groove 3101, and information can be recorded on the piece mark 3104 like this.As a result, overhead can be reduced.
(example 21)
Figure 32 has shown the orbital groove 3201 according to routine 21 CD media of the present invention.
In example 1, piece mark 210 provides through cutting off orbital groove 102.In this example, a plurality of mark 3204a and 3204b form through the phase place of the swing 3226 in the orbital groove 3201 that reverses partly.The piece mark 3204a and the 3204b that form like this do not cut off orbital groove 3201, in addition, except that the part of between piece mark 3204a and 3204b, inserting, keep the continuity of swing 3226 phase places.Therefore, reproduction can and not produce under the situation about differing in PLL in the phase place of the clock that does not change swing substantially and accomplishes.Main information can be recorded on piece mark 3204a and the 3204b.As a result, overhead can be reduced.
(example 22)
Figure 33 has shown the orbital groove 3301 according to routine 22 CD media of the present invention.
In example 1, piece mark 210 provides through cutting off orbital groove 102.In this example, piece mark 3304 is formed by the swing 3326 that has than the local frequency that increases of swing 26 frequency.The piece mark 3304 that forms does not so cut off orbital groove 3301, and information can be recorded on the piece mark 3304 like this.As a result, overhead can be reduced.
In example 1,4,5,7 to 12,15,16 and 19 to 22, the orbital groove with piece mark is disclosed.Orbital groove can provide on the CD media that does not have the piece mark.
Industrial applicibility
As stated, according to the present invention, on the orbital groove that with the block-by-block is the main information of basis record, form the swing of a plurality of regulation shapes.Swing demonstrates through remove the specific sub-information of describing in the said frame that is obtained with stated number K.Through in a plurality of frames of this piece, promptly repeatedly form the swing of the sub-information of indication, can be under the situation that does not have or almost do not have overhead calculated address information.Can obtain unifrequency swing reproducing signal (that is synchronizing signal).Like this, the CD media that is suitable for high density recording can be provided.
Sector number as one of the sub-information indication of the part of sub-message block ID number.When data are not read continuously, for example, after one is sought operation, be right after the sector number of the sector after seeking operation or can be read for ID number, rather than at the piece mark of the front end of this piece.Like this, can read piece ID from an any sector.A set of sectors through only reading a plurality of sectors that comprise in the piece is come the final piece ID of confirming, can promptly carry out aftertreatment (data read, data recording or the like).
Piece ID is repeated repeatedly in a piece.Like this, can strengthen the reading reliability of piece ID.
In Lead-In Area and leading-out zone, management information is indicated by the swing of preformed zigzag fashion.Like this, identical tracker can be used for whole dish.Optical disc apparatus can be simplified.
Make hunting frequency different between introducing and leading-out zone and record and reproduction regions.The disk management zone can be recorded in the limited area of Lead-In Area in the dish inside part and the leading-out zone that coils Outboard Sections effectively.
Claims (3)
1. a CD media has the orbital groove that has formed the sinusoidal wave shape swing, it is characterized in that,
Said orbital groove has piece,
Said comprises a plurality of sectors,
Each of said a plurality of sectors comprises a plurality of frames,
Each of said a plurality of frames comprises 1 of address information,
1 of said address information by some expression the in first swing that is determined in advance or second swing,
Said first swing and second swing have identical frequency with respect to said sinusoidal wave shape swing,
Said first swing has the shape that the rising gradient is mild, downward gradient is precipitous with respect to said sinusoidal wave shape swing,
Said second swing has the shape that the rising gradient is precipitous, downward gradient is mild with respect to said sinusoidal wave shape swing.
2. an optical disk reading access method reads recorded address information in the CD media, it is characterized in that,
Said CD has the orbital groove that has formed the sinusoidal wave shape swing,
Said orbital groove has piece,
Said comprises a plurality of sectors,
Each of said a plurality of sectors comprises a plurality of frames,
Each of said a plurality of frames comprises 1 of address information,
1 of said address information by some expression the in first swing that is determined in advance or second swing,
Said first swing and second swing have identical frequency with respect to said sinusoidal wave shape swing,
Said first swing has the shape that the rising gradient is mild, downward gradient is precipitous with respect to said sinusoidal wave shape swing,
Said second swing has the shape that the rising gradient is precipitous, downward gradient is mild with respect to said sinusoidal wave shape swing;
Said optical disk reading access method comprises:
To said CD media illumination beam and receive its catoptrical step;
According to swinging the step that corresponding reflected light generates the opposing party of " 1 " or " 0 " with said second with a certain side, basis that the corresponding reflected light of said first swing generates " 1 " or " 0 "; And
Generate the step of address information according to the combination of " 1 " " 0 " of said generation.
3. a compact disk recording method according to recorded address information in the CD media, to cd-rom recording of information, is characterized in that,
Said CD has the orbital groove that has formed the sinusoidal wave shape swing,
Said orbital groove has piece,
Said comprises a plurality of sectors,
Each of said a plurality of sectors comprises a plurality of frames,
Each of said a plurality of frames comprises 1 of address information,
1 of said address information by some expression the in first swing that is determined in advance or second swing,
Said first swing and second swing have identical frequency with respect to said sinusoidal wave shape swing,
Said first swing has the shape that the rising gradient is mild, downward gradient is precipitous with respect to said sinusoidal wave shape swing,
Said second swing has the shape that the rising gradient is precipitous, downward gradient is mild with respect to said sinusoidal wave shape swing;
Said recording method comprises:
To said CD media illumination beam and receive its catoptrical step;
According to swinging the step that corresponding reflected light generates the opposing party of " 1 " or " 0 " with said second with a certain side, basis that the corresponding reflected light of said first swing generates " 1 " or " 0 ";
Generate the step of address information according to the combination of " 1 " " 0 " of said generation; And
According to the address information of said generation step to said cd-rom recording of information.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000263416 | 2000-08-31 | ||
| JP263416/2000 | 2000-08-31 | ||
| JP2001179728 | 2001-06-14 | ||
| JP179728/2001 | 2001-06-14 | ||
| JP235618/2001 | 2001-08-02 | ||
| JP2001235618 | 2001-08-02 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018178863A Division CN100429720C (en) | 2000-08-31 | 2001-08-29 | Optical disc and physical address format |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101383163A CN101383163A (en) | 2009-03-11 |
| CN101383163B true CN101383163B (en) | 2012-05-02 |
Family
ID=40307671
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102159623A Expired - Lifetime CN101359485B (en) | 2000-08-31 | 2001-08-29 | Optical disc and physical address format |
| CN2008102159661A Expired - Fee Related CN101354892B (en) | 2000-08-31 | 2001-08-29 | Optical disc and physical address format |
| CN2008102159712A Expired - Fee Related CN101383163B (en) | 2000-08-31 | 2001-08-29 | Optical disc and reading and recording method |
| CN2008102159750A Expired - Fee Related CN101430891B (en) | 2000-08-31 | 2001-08-29 | Optical disc and physical address format |
| CN2008102159604A Expired - Fee Related CN101447196B (en) | 2000-08-31 | 2001-08-29 | Optical disc and physical address format |
| CN2008102159638A Expired - Fee Related CN101447197B (en) | 2000-08-31 | 2001-08-29 | Optical disc and physical address format |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102159623A Expired - Lifetime CN101359485B (en) | 2000-08-31 | 2001-08-29 | Optical disc and physical address format |
| CN2008102159661A Expired - Fee Related CN101354892B (en) | 2000-08-31 | 2001-08-29 | Optical disc and physical address format |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102159750A Expired - Fee Related CN101430891B (en) | 2000-08-31 | 2001-08-29 | Optical disc and physical address format |
| CN2008102159604A Expired - Fee Related CN101447196B (en) | 2000-08-31 | 2001-08-29 | Optical disc and physical address format |
| CN2008102159638A Expired - Fee Related CN101447197B (en) | 2000-08-31 | 2001-08-29 | Optical disc and physical address format |
Country Status (1)
| Country | Link |
|---|---|
| CN (6) | CN101359485B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8800152A (en) * | 1988-01-22 | 1989-08-16 | Philips Nv | OPTICAL READABLE RECORD CARRIER OF THE DESCRIBABLE TYPE, AN APPARATUS FOR MANUFACTURING SUCH RECORD CARRIER, AND ARRANGEMENTS FOR RECORDING AND / OR READING INFORMATION ON / FROM SUCH RECORD CARRIER. |
| EP1022737B1 (en) * | 1996-02-08 | 2002-08-14 | Matsushita Electric Industrial Co., Ltd. | Optical disk, optical disk device, and method of reproducing information on optical disk |
| DE69937852D1 (en) * | 1998-02-26 | 2008-02-14 | Victor Company Of Japan | Optical disc-shaped record carrier with wobbled grooves for recording on grooves and webs, apparatus for producing such a record carrier, and recording and / or reproducing apparatus for such a record carrier |
| JP4102483B2 (en) * | 1998-06-02 | 2008-06-18 | パイオニア株式会社 | Information recording device |
-
2001
- 2001-08-29 CN CN2008102159623A patent/CN101359485B/en not_active Expired - Lifetime
- 2001-08-29 CN CN2008102159661A patent/CN101354892B/en not_active Expired - Fee Related
- 2001-08-29 CN CN2008102159712A patent/CN101383163B/en not_active Expired - Fee Related
- 2001-08-29 CN CN2008102159750A patent/CN101430891B/en not_active Expired - Fee Related
- 2001-08-29 CN CN2008102159604A patent/CN101447196B/en not_active Expired - Fee Related
- 2001-08-29 CN CN2008102159638A patent/CN101447197B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101354892A (en) | 2009-01-28 |
| CN101359485B (en) | 2011-08-10 |
| CN101354892B (en) | 2012-05-30 |
| CN101447197A (en) | 2009-06-03 |
| CN101447197B (en) | 2011-06-29 |
| CN101447196B (en) | 2011-06-29 |
| CN101359485A (en) | 2009-02-04 |
| CN101430891B (en) | 2012-11-28 |
| CN101383163A (en) | 2009-03-11 |
| CN101447196A (en) | 2009-06-03 |
| CN101430891A (en) | 2009-05-13 |
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