CN1722246A - Information recording medium, reproduction method, reproduction apparatus and manufacturing apparatus thereof - Google Patents

Abstract

The numbers of times by which plural types of segments are consecutively arranged are limited, an address reading performance is enhanced and address information is correctly read out based on determination of the number of consecutive segments. A track is divided into physical segments, N (=17) wobble data units of constant length are formed in each physical segment, the wobble data unit (WDU) is defined to include a first unit (P) having a wobble modulation portion in a first half portion, a second unit (S) having a wobble modulation portion in a latter half portion and a third unit (U) having no wobble modulation portion, and the physical segment is defined to have segment types (TYPE 1, 2, 3) which each include the third unit (U) in a certain area thereof without fail and respectively include the first, second and a combination of the first and second units in the remaining areas. In the arrangement on the track, a lower-limit number of times M1 by which the first and second types (TYPE1, TYPE2) are consecutively arranged and an upper-limit number of times M2 by which the second types (TYPE2) are consecutively arranged are limited and the first type (TYPE1) and the second type (TYPE2) are respectively arranged immediately before and after the third type (TYPE3).

Description

Information recording carrier, reproducting method, reproducer and manufacturing equipment thereof

Technical field

The present invention relates to be applied to the effective technology in CD, reproducting method, reproducer and manufacturing equipment field thereof, and relate to information recording carrier as CD.

Background technology

Well-knownly in affiliated field be that recently, as can be with the CD of high density recording information on it, the CD that has the 4.7GB recording capacity on a kind of top layer have been dropped into actual use.For example, provide rewritable DVD-RAM (ECMA-330) ,+RW (ECMA-337), DVD-RW (ECMA-338) etc.

Above-mentioned CD has the information recording layer that forms on transparent substrates, and by on CD, converge laser to/from optical disc recording/reproducing information.In the information recording layer of CD, be formed with the guiding groove that is called as groove (groove) and be used as information recording/reproducer.Described information recording/regenerating operation is carried out along described groove.In addition, be formed with physical address so that the locus of designated recorder/information reproduction.

In DVD-RW, in inwall (land (the land)) part of the groove of tracer signal, be formed with impression pit (emboss pit) as the physical address pen recorder.Described impression pit is called land pre-pit (land pre-pit).Specify the formation position of land pre-pit according to address information.If described land pre-pit radially is provided with, and is furnished with groove therebetween, will bring harmful effect to data recording and address information read operation so.Therefore, in described DVD-RW, used a kind of like this method, described method is the odd and even number set positions benchmark of the formation position of land pre-pit, and change to form the benchmark of position, when being provided with continuously, move the record position of described land pre-pit with convenient land pre-pit.

Publication number be H11-259917 Japanese Patent Application Publication the equipment that exposes of a kind of master that is used for CD.In addition, a kind of method that is used to select as the major-minor land pre-pit of DVD-R address is also disclosed.

In known technology, proposed two class benchmark to the formation of land pre-pit or as the modulation of the guiding groove of address information, but had such problem, that is: conversion operations is not applied restriction.Therefore, described benchmark is often changed according to medium.When from this media reproducing data, the benchmark that is used to read also is converted through the address reproducer side of being everlasting.Thus, the load on the equipment becomes heavier, and the address occurred and read the problem that error rate increases.Because the land pre-pit is the signal with the frequency that is higher than swing (wobble) frequency modulating signal, so the address read extract operation is subjected to The noise less easily.

Summary of the invention

The purpose of embodiment is to address the above problem.According to various aspects of the present invention, (1) a kind of information recording carrier is provided, wherein the read-around ratio by abundant restriction polytype section strengthens address reading performance, (2) a kind of information recording/reproduction device and reproducting method, it can read address information from information recording carrier exactly by the read-around ratio of using same type section, and (3) a kind of information recording medium manufacturing method and information recording medium manufacturing apparatus, wherein can when fully being changed, the polytype section form information.

According to one embodiment of present invention, a kind of information recording carrier is provided, comprise a kind of track of partly being modulated in concentric form and the spiral form of having, described track is divided into the section of presetting length, described section is made of N unit, described unit is made of an integer part (part), described unit has three kinds of forms, comprise first module (P) with the modulation areas that is arranged in the described unit first half, the Unit the 3rd (U) that has Unit second (S) of the modulation areas that is positioned at described unit Lower Half and do not have modulation areas, described section has three kinds of forms, comprise first section (Class1) constituting by Unit the 3rd (U) and first module (P), second section (type 2) by Unit the 3rd (U) and Unit second (S) formation, and by the combination (P of Unit the 3rd (U) and first and second unit, S) the 3rd section (type 3) of Gou Chenging, the setting of described track epimere is constructed to be set at condition with first and second sections number of times lower limit M1 being set continuously and second section number of times upper limit M2 being set continuously, and be provided with first and second sections respectively immediately the 3rd section front and back, so that prevent modulation areas radially being set adjacent to each other along dish.

According to said apparatus, owing to determined the minimal amount of one type continuous physical section,, in other words, can use above-mentioned relation or rule to detect read error separating timing so can protect the address information read operation according to described dish.In addition, for each circumference on the described dish penetralia circumference, described segment type can be converted, and can be provided with described section, overlaps each other on the whole surface of dish so that prevent modulation areas.

To in description subsequently, set forth other purposes and the advantage of each embodiment, and will be conspicuous, perhaps can recognize by putting into practice the present invention according to following description partial content.Can realize and obtain objects and advantages of the present invention by means of means of hereinafter specifically noting and combination.

Description of drawings

Incorporate in the instructions and constitute its a part of accompanying drawing showing embodiments of the invention into, and explain principle of the present invention in conjunction with describe, in general terms that above provides and the detailed description of embodiment given below.

Fig. 1 shows the block diagram of compact disk equipment structure according to an embodiment of the invention;

Fig. 2 is the illustrative block diagram that one shown in Fig. 1 is divided into the example of four (four-divided) photodiode and output circuit thereof;

Fig. 3 A, 3B are used to illustrate can write down thereon according to an embodiment of the invention and the explanatory of the CD of rewrite information;

Fig. 4 shows from the explanatory of the state of the track shown in last square degree, Fig. 3 A;

Fig. 5 is used to illustrate the explanatory that the method for address information is set on dish;

Fig. 6 shows the illustrative graph of the configuration example of wobble data unit (WDU);

Fig. 7 shows the illustrative graph of the example of three types of physical segments that are used for CD of the present invention;

Fig. 8 shows the explanatory according to setting of the WDU on the track of the present invention and modulation areas state;

Fig. 9 A to 9C shows the illustrative graph that example is set according to three types of physical segments on each track of CD of the present invention;

Figure 10 A, 10B show the illustrative graph that example is set according to three types of physical segments on each track of CD of the present invention;

Figure 11 shows the conduct block diagram of the configuration example of master making (mastering) equipment of a CD media manufacturing equipment part according to an embodiment of the invention;

Figure 12 is the process flow diagram that is used to illustrate the process that forms CD media;

Figure 13 shows the figure as the treatment circuit of formatter 117 parts;

Figure 14 is the process flow diagram that is used to illustrate in the transfer process of carrying out master when making, physical segment type according to the present invention;

Figure 15 illustrates the chart that is used for determining corresponding to the condition of four kinds of patterns that type is set of physical segment type according to the present invention;

Figure 16 shows the illustrative graph according to the example of the physical segment setting of each track circumference on the CD of the present invention;

Figure 17 shows the illustrative graph that is suitable for the example that physical segment is provided with on the CD of the present invention;

Figure 18 shows the illustrative graph that is suitable for another example that physical segment is provided with on the CD of the present invention;

Figure 19 shows the illustrative graph of the example that physical segment is provided with on the inapplicable CD of the present invention;

Figure 20 shows the illustrative graph of the example of 2 adjacent orbits;

Figure 21 A and 21B show the illustrative graph of selecting the example under Class1 physical segment and 2 sections situations of type in track #i+1 and #i+1;

Figure 22 shows the illustrative graph of selecting the example under the type 3 physical segment situations; And

Figure 23 shows the illustrative graph of the process example of selecting the physics segment type.

Embodiment

Describe embodiments of the invention below with reference to accompanying drawings in detail.

(to the explanation of optical disc reproducing equipment)

The structure of compact disk equipment according to an embodiment of the invention has been shown among Fig. 1.Compact disk equipment of the present invention writes down or information reproduction by the information recording layer that the laser that sends from pick-up head (PUH) 12 is converged to CD 11.From the light that the coil 11 reflections optical system by PUH 12 once more, and detect by photoelectric detector (PD) 13 and to be electric signal.

Described PD 13 can be divided into two or more elements, and the output signal that makes the element of division goes through additive process and the signal that obtains is called and signal, and makes output signal go through subtractive process and the signal that obtains is called difference signal.Specifically, have high-frequency information, such as comprise therein or add user profile on it to be called the RF signal with signal.In addition, will go through subtractive process and the signal that obtains is called radial push-pull signal along the output signal of each element of the radially optics setting of CD 11.

The situation that described PD 13 is divided into four elements has been shown among Fig. 2.Become and signal by the signal that obtains that the output signal of four element A, B, C, D is added up, and by with the output signal addition of two elements and the signal that obtains of the signal after from each other, cutting addition become difference signal.Described signal is a radial push-pull signal.Above-mentioned signal obtains by utilizing operating unit 13a to 13d.

Referring again to Fig. 1, by prime amplifier 14 come amplification detection to electric signal, then it is outputed to servo circuit 15, RF signal processing circuit 16 and address signal treatment circuit 17.

In described servo circuit 15, generate be used to focus on, follow the tracks of, the servosignal of inclination etc., and each signal is outputed to focusing, tracking, the inclination starter of PUH 12.

In RF signal processing circuit 16, mainly reproduce recorded information with signal in the detection signal such as user profile by handling.Demodulation method as at this moment carrying out can provide slices method (slice method) or PRML method.

In address signal treatment circuit 17, read the physical address information that is used to represent the record position on the CD by handling detected signal, and export controller 18 to.Described controller 18 is read the information such as user profile in the desired locations based on address information, perhaps the information of record such as user profile in desired locations.

In when record, in tracer signal treatment circuit 19, user profile is modulated to the signal that is applicable to the video disc recording operation.For example, the modulating rule of employing such as (1,10) RLL, (2,10) RLL etc.The output signal of described tracer signal treatment circuit 19 is inputed to laser driver (LDD) and is used as laser output control signal.Designed the groove structure that is used to obtain physical address especially according to the present invention, and after a while this has been elaborated.

The following function of the characteristic that is used to constitute this equipment is provided on controller 18.That is to say, described controller 18 comprises and is used for detection segment Class1 (first section) by the M1 detecting device 18a of the number of times lower limit M1 of successively reproducing, be used for detection segment type 2 (second section) by the M2 detecting device 18b of the number of times upper limit M2 of successively reproducing, and condition detecting device 18c, the condition of front and back position that is used for detection segment type 3 (the 3rd section) is so that detect segment type 1 (first section) and segment type 2 (second section) is arranged on the front and back of segment type 3 (the 3rd section) respectively immediately.In addition, it comprises normal determining unit 18d, be used for determining the normal reproduction state when presetting the condition that numeral sets when M1, M2 satisfy, and comprise mistake determining unit 18e, be used for when detect less than the number of times of M1 down in limited time, exceed in detection M2 the number of times upper limit process and detect the 3rd section before and after have the process of the section of presetting, when detecting departure from these rules, define wrong the appearance.Above-mentioned functions will be waited a moment detailed description.

(to the explanation of CD)

Fig. 3 A, 3B show and can write down according to an embodiment of the invention and the CD of rewrite information.In described CD, on transparent substrates, form information recording layer, and come by video disc recording or information reproduction by on CD, converging laser.In the substrate of CD, form and be called as the guiding groove of groove track as information recording/reproducer.The information recording/regenerating operation is carried out along guiding groove.In addition, in described substrate, be pre-formed the physical address of the locus that all is used to specify recoding/reproduction information.Shown in Fig. 3 B, form device as physical address, used groove wobble modulations (being designated hereinafter simply as wobble modulations) method, in the method, radially the zigzag according to less degree forms guiding groove or recording layer.In this case, described wobble modulation methods is a kind of method that changes swaying phase or frequency according to information to be recorded.Effect of the present invention can be applied to phase modulation and frequency modulation, but in this example, the situation of using phase modulation has been described.Because the physical address that obtains by wobble modulations can not cut off the track track, so can obtain following advantage, that is: CD is easy to and reproducing medium compatibility only, and described only reproducing medium has the big posting field that is used for recording user information, that is to say to have higher format efficiency.In addition, the recording materials such as organic coloring material or multilayer inorganic material are used for forming information recording layer.Record vestige or pit form by high-power laser is converged on the information recording layer, and thus information are recorded on the CD.

The information recording layer of CD radially has a plurality of zones, and the type of item of information to be recorded is predetermined in each zone.But information recording layer is broadly divided into only reproduction regions and data posting field.Information is by utilizing the impression pit in reproduction regions only to write down, and except that reproduction regions only, also is formed with above-mentioned groove track in each zone.

Yet, come recording address information always not necessary with respect to described track by using swing.For example, if the division of pre-pit or groove can form according to recurrent shape with the mode identical with aforesaid way, can use them so.

(to the explanation of swinging signal)

Fig. 4 shows from the view of the track of last square degree 3A with the aid of pictures.Described track has the swing form, and described form radially has the zigzag of less degree.The part that gives described track by modulation is swung and is write down physical message.In Fig. 4, the phase modulation method that shows the phase place that is used to change sinusoidal wave swinging signal is as modulator approach.Described phase modulation method is applied to the part groove track, and the groove track of other parts has the swing of the phase place of presetting.In addition, constant always being set between shaking peroid in dish of the present invention, and the number of the swing that comprises in the circumference of track is big in inner periphery at the excircle ratio.Swaying phase relation between the adjacent orbit always changes.

(to the explanation of address reproducting method)

Because when scanning the beam spot that converges along as shown in Figure 4 wobble tracks, hunting frequency is higher than the frequency in the frequency band of tracking servo signal, so beam spot moves linearly basically along the central authorities of wobble tracks.At this moment and signal remain unchanged basically, and have only radially difference signal or push-pull signal to change according to described swing.Sort signal is called swinging signal.Described swinging signal is as recording clock or regulate the benchmark of main shaft rotational frequency.In addition, it is inputed to the address signal treatment circuit of compact disk equipment so that obtain address information.In addition, at scan track and simultaneously described dish is just under the situation with constant linear velocity (CLV) rotation, the swinging signal of constant frequency is reproduced.

(to the explanation of address layout)

Fig. 5 shows the method that is used for being provided with address information on dish.In CD of the present invention, track is divided into the unit with regular length, is called physical segment, and individual address is distributed to each physical segment.Described physical segment is made of an integer wobble data unit (WDU).Each WDU is made of the swing (part) of presetting integer, and address information is divided into a plurality of bits and partly comes to be stored by modulation WDU.Address information comprises number, physical segment type, the physical segment sequence number of information recording layer, error correcting code of above-mentioned item of information etc.

Described physical segment is divided into three zones: STNC field (synchronization field), address field and single (unity) field, and in each field, be provided with dissimilar WDU.In described SYNC field, be provided with the WDU that comprises the SYNC pattern.In address field, be provided with comprise address information WDU as data pattern.In only field, be provided with and do not have modulated WDU.In this case, when the number of the MDU that comprises in physical segment is set at N, need in only field, provide { N-(N mod 3) }/3 or more WDU.For example, when the number of the MDU that comprises in the physical segment was 17, described only field need comprise five or more WDU.

(to the explanation of WDU type)

The configuration example of WDU has been shown among Fig. 6.Defined three types WDU.The WDU of the first kind comprises the modulation areas that is arranged in WDU the first half, shown in 6a among Fig. 6, and it is called main type WDU.As main type WDU, the WDU that comprises the SYNC pattern and the WDU that comprises data pattern are provided, and have been separately positioned on the presetting in the field of physical segment.

The WDU of auxiliary type comprises the modulation areas that is arranged in the WDU latter half, shown in 6b among Fig. 6, and it is called auxiliary type WDU.Similar with main type WDU, auxiliary type WDU comprises two types WDU.Modulation areas length among the major-minor type WDU is than the total length short 1/4 of WDU.

The WDU of the 3rd type does not have modulation areas, shown in 6c among Fig. 6, and it is called single type WDU.

In CD of the present invention, prepared three types physical segment as shown in Figure 7.In as first type Class1, all WDU that are arranged in SYNC field and the address field are made of main type WDU.In type 2, all WDU that are arranged in SYNC field and the address field are made of auxiliary type WDU.In addition, in type 3, the first half WDU that is arranged in SYNC field and the address field is made of main type WDU, and their latter half is made of auxiliary type WDU.If the number of the WDU that comprises in the physical segment is N, and the WDU number in the only field is M, needs to be provided with continuously at least ((N-M)-{ (N-M) mod2})/2-the WDU of (M-{N-(N mod 3) }/3) individual main type and auxiliary type so.For example, when the WDU number that comprises in the physical segment be 17 and only field in the WDU number that comprises when being 5, six main type WDU and six auxiliary type WDU are set continuously.

When calculated address information on information recording carrier, the physical segment by three types of abundant conversions can prevent the overlapping of adjacent orbit modulation areas.At this moment, by the read-around ratio that limits WDU on the only field (main type WDU and secondary type WDU) modulation areas is set, and can in all parts of dish, occur overlapping.

(to modulating partly overlapping explanation)

Show the setting of WDU in each track and the state of modulation areas by 8a and 8b among Fig. 8.Because the length of WDU is fixed, so the length of a circumference of track can not always be divided exactly by the length of WDU.Therefore, shown in 8a, 8b, the reference position of WDU is along with track moves before the direction of track (i-1), (i), (i+1) and then gradually.In this case, if in the adjacent orbit each other the distance X between the reference position of immediate WDU be longer than 1/4 of WDU length M, even have same type (8a) as WDU so, also modulation areas can't be set adjacent to each other.In addition, have such possibility, if that is: distance X becomes less than 1/4 of WDU length M, and it for the conversion WDU type be essential (8b), so modulation areas can be set adjacent to each other.

If the length of (i-1) individual track is Z, can derive distance X according to the remainder that obtains during divided by the WDU length M as Z so.If remainder greater than M/4 and less than 3M/4, is set at distance X so and is longer than 1/4 of WDU length M.On the other hand, if remainder less than M/4 or greater than 3M/4, is set at distance X so and is equal to or less than 1/4 of WDU length M.

(setting of physical segment)

The setting of three types physical segment has been shown among Fig. 9 A, 9B, the 9C in each track.Shown in 8c among Fig. 8, when distance X be longer than the WDU length M 1/4 the time, needn't change the type of the WDU in the adjacent orbit.Therefore, needn't change the type of the physical segment shown in Fig. 9 A, and the physical segment of same-type is set continuously.

Next, if shown in 8b among Fig. 8, must change the type of WDU like that, physical segment is set like that shown in Fig. 9 B and 9C so.Under the situation of Fig. 9 B, be the type of each track conversion physical segment, so that the type of the WDU in the conversion adjacent orbit.In this case, owing to the length of physical segment is fixed, so the length of a circumference of track can not always be divided exactly by the length of physical segment.Therefore, shown in Fig. 9 A, 9B, 9C, the reference position of physical segment is along with track moves before the direction of track (i-1), (i), (i+1) and then gradually.Type for each physical segment cell translation WDU.Therefore, for example, shown in Fig. 9 C, in some cases, part WDU need be set as main type WDU in physical segment, and part WDU be set as secondary type WDU.In this case, be provided with the physical segment (for ease of understanding, appropriate section is centered on by thick line) of type 3.

For example, if the number of the WDU that comprises in (i '-1) individual track is Y, and the remainder that obtains as the number L by WDU that Y is comprised in divided by physical segment is provided with the physical segment of type 3 during greater than 3/L (if indivisible then remainder is rounded up) and less than 2L/3 (if indivisible then remainder is rounded up).

(to the explanation of the upper and lower bound of the read-around ratio of type)

Next, explanation is to the limited in number of the continuous physical section of same-type.When the modulation areas of only attempting to prevent adjacent orbit is overlapping, in Fig. 8, be provided with the mode of physical segment as radial position, also provide by a, a ' of Figure 10 A and the b of Figure 10 B, the method that b ' illustrates in regulation by the continuous method to set up of the physical segment of the same or similar type shown in 8a, the 8b.The method in short relatively time durations translation type of being used for shown in a ' among Figure 10 A is provided.In addition, except that the method for the physical segment that is used to be provided with a large amount of relatively Class1, considered that also being used for shown in b ' among Figure 10 B is provided with the method for dissimilar physical segments (composite type-type 3) continuously.Yet in said method, the position of the modulation areas among the WDU often is converted, and therefore, the problem that exists the information reading accuracy to be lowered.In addition, appear in the latter half of WDU, so exist information to detect the problem that is delayed owing to be different from the position of modulation areas in the physical segment of Class1.

Therefore, in CD of the present invention, when the conversion physical segment, all satisfy for the whole surface of described dish following restriction (1), (2), (3).

(1) setting is no less than the Class1 of (the physical segment number-1 that comprises in the track of penetralia circumference in the zone of formation groove) and the physical segment of type 2 continuously.

(2) discontinuous setting is greater than the physical segment of the type 2 of (physical segment number+1 that comprises in the track of most external circumference in the zone of formation groove).

(3) physical segment of type 3 always is set immediately after the physical segment of Class1, and the physical segment of type 2 is set after the physical segment of type 3 immediately.

Above-mentioned restriction is used as various conditions, and can obtains following various advantage.

Because first limits, determined the minimal amount of one type continuous physical section for each dish.Therefore, if use described restriction rule separating timing, can protect the read operation of address information so, and can detect read error.In addition, by such setting lower limit (the physical segment number-1 that comprises in the track of penetralia circumference in the zone of formation groove), can on the penetralia circumference of dish, be each circumference conversion physical segment type, and can be on the whole surface of coiling divide into and put physical segment in the situation in superimposed modulation zone not.

Because the second and the 3rd restriction,, most dish constitutes so being physical segment by Class1.For example, determine start of record if Class1 is set at benchmark, the accuracy of detection of start of record in the section of type 2 is lower than the accuracy of detection in the section of Class1 so.Therefore, can obtain such advantage, if that is: the number of the section of Class1 is bigger, the misregistration number in the entire portion of described dish will be lowered so.In addition, in the most external circumference, the section of type 2 can be set continuously on a circumference.

Because the 3rd limits, can suppress the frequency of occurrences of the section of type 3.Owing to compare the type of in the section of type 3, in than short element, changing WDU with the section of another type, so the address information verification and measurement ratio is a shade below the address information verification and measurement ratio of another type.Therefore, by suppressing the frequency of occurrences of type 3, the number of address read error can be lowered in the entire portion of dish.In addition, if type 3 is determined, so certainly, the type of next physical segment is a type 2.Therefore, can conversion type identification operation in fetch equipment easily.

(describing) by using concrete numeral

Consider in the condition of using under the concrete digital situation.The optical maser wavelength of compact disk equipment is set at 405 nanometers, and the NA of object lens is set at 0.65.But the radius of the penetralia circumference of optical disc data posting field is set at 23.8 millimeters, the radius of most external circumference is set at 58.6 millimeters, track space is 0.4 μ m, and the channel bit length of record data is 0.102 μ m.In addition, wobble length being set at 93 channels bits, is the length setting of WDU 84 swings, and the number of the WDU that comprises in the physical segment is set at 17.

At this moment, because the girth of penetralia circumference is set at 2 * 23.8 * π=149.5398 millimeter, and wobble length is set at 93 * 0.102/1000=0.009486 millimeter, so the swing number that comprises in the penetralia circumference is set to 15764.In addition, because the swing number that comprises in the physical segment is 84 * 17=1428, so the number of the physical segment that comprises in the track of penetralia circumference is set to 11.Similarly, the number of the physical segment that comprises in the most external circumference is set at 27.Therefore, in this case, can definition (4) be described to (6) as getting off.

(4) physical segment of ten or more Class1 and type 2 is set continuously.

(5) the discontinuous physical segment that type 2 more than 28 is set.

(6) physical segment of type 3 always is set immediately after the physical segment of Class1, and the physical segment of type 2 is set after the physical segment of type 3 immediately.

As mentioned above, in the present invention, set the address of physical segment according to presetting rule.Therefore, there is feature in the present invention in the information recording carrier as CD, and also has feature in physical address reproducting method and reproducer.In addition, by using said method, the present invention can be applied to data recording/reproducing apparatus.In addition, in the optic disc producing mehtod that will describe after a while and equipment, can realize above-mentioned feature.

(to the explanation of optical disc substrate manufacturing equipment)

Figure 11 shows the conduct structural representation of the master making apparatus of a CD media manufacturing equipment part according to an embodiment of the invention.

The laser that use comes from optical system 112 makes master (master disk) 111 go through cutting process.The main shaft of described master 111 by main shaft and slider part 113 drives and rotates.Moving of CD 112 controlled by slider.Be converted to electric signal via the light that optical system 112 reflects by photoelectric detector 114 from CD, and its output signal is input to servo circuit 115 as master.Described servo circuit 115 is by using based on the control signal of coming self-controller 116 and controlling the tracking and the focusing operation of optical system 112 from the control signal that electric signal generated of photoelectric detector 114.In addition, described servo circuit 115 is controlled the rotating speed of master via main shaft and slider part 113.

Described controller 116 control format devices 117.Described formatter 117 control laser drivers 118 are so that the laser of master 111 is sent and is applied in control from optical system 112.In addition, described formatter 117 control swing control circuits 119, and control described optical system 112, so that form swing as previously described like that.

In the master making apparatus of Figure 11, based on the signal that outputs to laser driver (LDD) 118 from formatter 117, control is from the amount of laser light of optical system 112.AO modulator and the object lens of described laser by comprising in the optical system 112, and be applied on the master.The focusing operation that applies light is by servo circuit 115 controls.In addition, the rotation of dish and position radially also are controlled.Expose owing to be applied in a part of master of light, so exposed portions is used as guiding groove etc.Formatter 117 based on the physical address information on CD 111 to be recorded etc. to swing control circuit 119 output signals.Described swing control circuit 119 can be by the radially mobile a little beam spots that put on master 111 such as AO modulator in the control optical system.In this case, can be used for radially that the signal of moving beam point forms accurate swinging chute by control suitably.

Described formatter 117 comprises the physical segment type conversion unit, will be described after a while.Described physical segment type conversion unit conversion physical segment Class1,2 and 3 is so that prevent that the wobble modulations part between the track is radially overlapping.

Figure 12 is the process flow diagram that is used to illustrate the process that forms CD media.CD media of the present invention forms (step ST2), mold step (ST3), dielectric film formation (step ST4) and lamination (lamination) (step ST5) by master forming process (step ST1), pressing mold (stamper) and forms.Form in the step at master, resist is covered on the master plane, expose resist on the master by the master making apparatus that utilizes Figure 11, remove the resist of exposure by developing process, and form the master with projection and concave part thus, these projectioies are identical with those parts of the information recording layer of final CD media with concave part.In pressing mold formed step, plated with nickel etc. on master had enough sheet metals of big thickness so that form, then master separately so that the formation pressing mold.At this moment, the projection and the concave part that form on master are inverted, and are formed on the pressing mold.Next, in the mold step, described pressing mold as model, is allowed in the resin flow model such as polycarbonate so that form substrate.At this moment, projection by transfer printing (transfer) pressing mold and concave part obtain the projection and the concave part that form in the substrate surface that forms thus, and these parts are substantially the same with the projection and the concave part of master.Next, on projection and concave part, form recording materials, and another substrate layer pressure that will be used to protect the film portion that forms thus thereon, so that finish CD media by sputter etc.That is to say, write down guiding groove such as groove, wobble tracks etc. by utilizing the master making apparatus shown in Figure 12.

(conversion of physical segment type)

Figure 13 shows part formatter 117, and shows the structure of physical segment type conversion unit according to an embodiment of the invention.

When master is made, conversion will use the physical segment type conversion unit to be recorded in physical segment type on the master, so that satisfy restriction (1) to (3).

During the about every rotation twice of master, in the physical segment type conversion unit, carry out the conversion of physical segment type and determine.That is to say, can determine and generate simultaneously the signal of twice rotation of being write down in advance for twice, safeguard, and adjacent modulating part is occurred the continuous limited in number of physical segment type by every rotation.

Described physical segment type conversion unit comprises counter 131, selector switch 132 and signal generator 133.Described counter 131 is provided with signal (P1), master was finished the once timing of rotation during it was illustrated in master manufacturing process, and be provided with clock signal (CK1), described clock signal and beam spot control signal are synchronous, and described beam spot control signal is modulated so that the record swinging chute.

In counter 131, when input signal (P1), be measured as the swing number that each rotation of dish is write down based on input signal (P1).Because described measurement comprises mistake, thus the mean value of the measurement result of rotating several times, for example rotating for four times in the past calculated, and the swing number that at this moment the each rotation of dish is write down is set at N _WobbleAccording to the renewal pulse that comes from signal generator 133, the swing number that calculates is thus outputed to selector switch 132.

In selector switch 132, carry out two processes.The swing number that first process is based on from a circumference of counter 131 inputs calculates three values, and described value will be explained below.Second process is based on the value of calculating thus and selects next with the physical segment type that writes down.

The value of described calculating comprises the number (N of the physical segment that comprises in the circumference _Segment), the remainder swing number (R that when swing number that the swing number that comprises in the circumference comprises in divided by a WDU, obtains _Wobble), and the remainder WDU number (R that when WDU number that the WDU number that comprises in the circumference comprises in divided by a physical segment, obtains _WDU).Above-mentioned value is based on that following formula (7) to (9) calculates.

$N_{\mathrm{segment}}=\frac{N_{\mathrm{wobble}}-\left(N_{\mathrm{wobble}}\mathrm{mod}{S}_{\mathrm{wobble}}\right)}{S_{\mathrm{wobble}}}---\left(7\right)$

S wherein _WobbleIt is the swing number that comprises in the physical segment.

R _wobble＝N _wobble?mod?W _wobble ——(8)

W wherein _WobbleIt is the swing number that comprises among the WDU.

R _WDU＝N _WDU?mod?S _WDU ——(9)

N wherein _WDU=(N _Wobble-R _Wobble)/W _Wobble, and S _WDUIt is the WDU number that comprises in the physical segment.

When selecting the physical segment type, can determine the type in about two circumference simultaneously.Described deterministic process is based on R _Wobble, R _WDUCarry out, the number of one type continuous physical section is based on N _SegmentDetermine, and the result who determines is outputed to signal generator 133.The recorded information of Class1, type 2 or the type 3 of following condition is satisfied in described signal generator 133 outputs.Described swing control circuit 119 (Figure 11) is operated in response to described recorded information.

At first, if R _WobbleBe set at A≤R _WobbleIn the scope of＜B, the physical segment of Class1 is recorded (N so _Segment* 2) inferior.In this case, A=(the swing number that comprises among the WDU)/4, and B=(the swing number that comprises among the WDU) * 3/4.

Secondly, if R _WobbleBe set at 0≤R _WobbleIn the scope of＜A, and R _WDUBe set at 0≤R _WDUIn the scope of＜E, if perhaps R _WobbleBe set at B≤R _WobbleIn the scope of＜C, and R _WDUBe set at 0≤R _WDUIn＜(E-1) the scope, the physical segment of Class1 is recorded N so _SegmentInferior, the physical segment of type 2 is recorded N then _SegmentInferior.In this case, C=(the swing number that comprises among the WDU), and E=(the WDU number that comprises in physical segment)/3.The value of E is rounded up and calculate.

The 3rd, if R _WobbleBe set at 0≤R _WobbleIn the scope of＜A, and R _WDUBe set at E≤R _WDUIn the scope of＜F, if perhaps R _WobbleBe set at B≤R _WobbleIn the scope of＜C, and R _WDUBe set at (E-1)≤R _WDUIn＜(F-1) the scope, the physical segment of Class1 is recorded N so _SegmentInferior, the physical segment of type 3 is recorded once then, and the physical segment of type 2 is recorded N _SegmentInferior.In this case, F=(the WDU number that comprises in physical segment) * 2/3.The value of F is rounded up and calculate.

The 4th, in other cases, just: if R _WobbleBe set at 0≤R _WobbleIn the scope of＜A, and R _WDUBe set at F≤R _WDUIn the scope of＜G, if perhaps R _WobbleBe set at B≤R _WobbleIn the scope of＜C, and R _WDUBe set at (F-1)≤R _WDUIn the scope of＜G, the physical segment of Class1 is recorded (N so _Segment+ 1) inferior, the physical segment of type 2 is recorded (N then _Segment+ 1) inferior.In this case, F=(the WDU number that comprises in physical segment).

At last, described signal generator 133 is based on definite result of selector switch and the address information that is write down, and generation and output are used for the radially signal of moving beam point.In addition, when requiring next to determine as a result, it exports the renewal pulse fully to counter.

Figure 14 is the process flow diagram that is used to illustrate the process of conversion physical segment type when master is made.

When the beginning swinging chute is made (mastering) process, at first, measure during manufacturing process radially the swing number that comprises in the position master circumference.For example, described measurement is the (step 1) of being undertaken by the number of measuring wobble clock generator when the motor of rotation master is exported a pulse for each rotation.At this moment, for example considered the variation in the measuring process, and the mean value of the swing number in past four tracks has been used as measurement result (N _Segment).

Next, be calculated as follows number (step 2), described number comprises the physical segment number (N that comprises in the circumference _Segment), the remainder swing number (R that when swing number that the swing number that comprises in the circumference comprises in divided by a WDU, obtains _Wobble), and the remainder WDU number (R that when WDU number that the WDU number that comprises in the circumference comprises in divided by a physical segment, obtains _WDU).In this case, above-mentioned value is calculated according to formula (7), (8), (9).

After this, based on calculated R _WobbleAnd R _WDUValue is selected physics segment type (step 3).For example, based on calculated R _WobbleAnd R _WDUValue determines to be stored in the selection information of the physical segment type in the storer.

In the method for the invention, can determine the physical segment type of about two circumference simultaneously.The physical segment type of about two circumference be provided with four kinds of patterns.The following R that shows _WobbleAnd R _WDUThe scope of value, and the setting that is used as the physical segment type of various model selection conditions.In this case, in pattern 1, record type 1 physical segment repeatedly.In pattern 2 and pattern 4, record type 1 physical segment repeatedly, record type 2 physical segments repeatedly then.In mode 3, record type 1 physical segment repeatedly, then record type 3 physical segments once, and record type 2 physical segments repeatedly.

Pattern 1:

Condition: A≤R _Wobble＜B

Repeat number=the N of Class1 physical segment _Segment* 2

Pattern 2:

Condition: { (0≤R _Wobble＜A) and (0≤R _WDU＜E) } or { (B≤R _Wobble＜C) and (0≤R _WDU＜E-1) }

Repeat number=the N of Class1 physical segment _Segment

Repeat number=the N of type 2 physical segments _Segment

Mode 3:

Condition: { (0≤R _Wobble＜A) and (E≤R _WDU＜F) } or { (B≤R _Wobble＜C) and (E-1≤R _WDU＜F-1) }

Repeat number=the N of Class1 physical segment _Segment

Repeat number=1 of type 3 physical segments

Repeat number=the N of type 2 physical segments _Segment

Pattern 4:

Condition: { (0≤R _Wobble＜A) and (F≤R _WDU＜G) } or { (B≤R _Wobble＜C) and (F-1≤R _WDU＜G) }

Repeat number=the N of Class1 physical segment _Segment+ 1

Repeat number=the N of type 2 physical segments _Segment+ 1

Wherein, A=(the swing number that comprises among WDU)/4, the swing number that comprises among WDU of B=) * 3/4, and C=(the swing number that comprises among WDU).In addition, E=(the WDU number that comprises in physical segment)/3, and F=(the WDU number that comprises in physical segment) * 2/3.In addition, the value of E, F is rounded up and calculate.In addition, G=(the WDU number that comprises in physical segment).

The process of making (mastering) swinging chute is based on next preference pattern execution.In the front and back that institute's lectotype has been finished manufacturing process, described process turns back to step 1 once more.Carry out described step continuously, till the manufacturing process of swinging chute stops.

(describing) by using concrete numeral

The condition of setting when now, the consideration utilization is specifically digital.The optical maser wavelength of CD is set at 405 nanometers, and object lens NA is set at 0.65.But the penetralia radius of a circle of optical disc data posting field is set at 23.8 millimeters, the radius of its most external circumference is set at 58.6 millimeters, described track space is 0.4 μ m, and the channel bit length of record data is 0.102 μ m.In addition, wobble length being set at 93 channels bits, is the length setting of WDU 84 swings, and the WDU number that comprises in the physical segment is set at 17.

At this moment, the swing number that comprises in the physical segment is set at 17 * 84=1428.Therefore, formula (7) to (9) can be rewritten as following formula (10) respectively to (12).

$N_{\mathrm{segment}}=\frac{N_{\mathrm{wobble}}-\left(N_{\mathrm{wobble}}\mathrm{mod}1428\right)}{1428}---\left(10\right)$

R _wobble＝N _wobble?mod?84 ——(11)

R _WDU＝N _WDU?mod?17 ——(12)

N wherein _WDU=(N _Wobble-R _Wobble)/84.

In addition, pattern 1 is as follows to the value of pattern 4.

Pattern 1:

Condition: 21≤R _Wobble＜63

Repeat number=the N of Class1 physical segment _Segment* 2

Pattern 2:

Condition: { (0≤R _Wobble＜21) and (0≤R _WDU＜6) } or { (63≤R _Wobble＜84) and (0≤R _WDU＜5) }

Repeat number=the N of Class1 physical segment _Segment

Repeat number=the N of type 2 physical segments _Segment

Mode 3:

Condition: { (0≤R _Wobble＜21) and (6≤R _WDU＜12) } or { (63≤R _Wobble＜84) and (5≤R _WDU＜11) }

Repeat number=the N of Class1 physical segment _Segment

Repeat number=1 of type 3 physical segments

Repeat number=the N of type 2 physical segments _Segment

Pattern 4:

Condition: { (0≤R _Wobble＜21) and (12≤R _WDU＜17) } or { (63≤R _Wobble＜84) and (11≤R _WDU＜17) }

Repeat number=the N of Class1 physical segment _Segment+ 1

Repeat number=the N of type 2 physical segments _Segment+ 1

In Figure 15, show digital line corresponding to above-mentioned formula.Figure 15 shows remainder WDU number=R _WDU, remainder swing number=R _WobbleAnd the relation between the pattern 1,2,3,4.

That is to say that the condition of pattern 1 is to have set 21≤R _Wobble＜63 relation.In addition, the condition of pattern 2 is to have set { (0≤R _Wobble＜21) and (0≤R _WDU＜6) relation } or { (63≤R _Wobble＜84) and (0≤R _WDU＜5) relation }.The condition of mode 3 is to have set { (0≤R _Wobble＜21) and (6≤R _WDU＜12) relation } or { (63≤R _Wobble＜84) and (5≤R _WDU＜11) relation }.In addition, the condition of pattern 4 is to have set { (0≤R _Wobble＜21) and (12≤R _WDU＜17) relation } or { (63≤R _Wobble＜84) and (11≤R _WDU＜17) relation }.

Next, the setting of actual physics section when carrying out cutting process according to above-mentioned condition will be explained.

Figure 16 shows the setting of physical segment of each circumference of track.As shown in figure 16, track circumference is by (N _Segment) individual section, (R _WDU) individual WDU and (R _Wobble) individual swing formation.The physical segment of i track and (i+1) individual track relation is set is to pass through R _WobbleAnd R _WDUValue determine.

An example as physical segment is provided with shows such physical segment setting by 17a in Figure 17, described physical segment is by by (N _Segment) individual physical segment constitutes each circumference and R _WobbleAnd R _WDUValue be set at that " 0 " obtain.Because R _WobbleAnd R _WDUValue be " 0 ", so the reference position of i and (i+1) individual physical segment radially overlaps each other.

According to embodiments of the invention, be understandable that by checking above-mentioned condition above-mentioned example is corresponding to the condition of pattern 2.Therefore, be every N _SegmentIndividual physical segment conversion physical segment type, and if i track corresponding to the Class1 physical segment, type 2 physical segments are set in (i+1) individual track so.Show the amplifier section of part track among Figure 17 by 17b.Be understandable that according to Figure 17, in adjacent orbit, modulation areas be not provided with adjacent to each other.

Illustrated among the 180a of Figure 18 and worked as by (N _Segment) individual physical segment and 11 WDU constitute a circumference and (R _Wobble) physical segment setting when being " 0 ".Because (R _Wobble) be " 0 ", so the reference position of the WDU in i and (i+1) individual track radially overlaps each other.Yet, because (R _WDU) be 11, so the reference position of physical segment does not overlap each other in the adjacent orbit.When condition in this example and the comparison of above-mentioned condition, it should be understood that the condition of above-mentioned example corresponding to mode 3.Therefore, (N is set in i track _Segment) individual Class1 physical segment, type 3 physical segments are set then, and (N is set _Segment) individual type 2 physical segments.Thus, described (i+1) individual track has been followed type 2 physical segments then from the center section of type 3 physical segments.The amplifier section of part track has been shown among the 180b among Figure 18.Be understandable that according to Figure 18, in adjacent orbit, modulation areas be not provided with adjacent to each other.

Illustrated among the 19a of Figure 19 and worked as R _WobbleWhen being " 0 ", by (N _Segment) individual physical segment and 11 WDU constitute a circumference and the not physical segment setting during type of service 3 physical segments.In an embodiment of the present invention, because (R _WDU) be 11, thus the Class1 physical segment be provided with, and type 3 physical segments should be set after the Class1 physical segment.Yet, under the situation of the example of Figure 19, type 2 physical segments are being set after the Class1 physical segment under the situation that type 3 physical segments are not set.At this moment, the main type WDU in i and (i+1) individual track middle orbit latter half radially overlaps.

The amplifier section of part track has been shown among the 19b of Figure 19.As understandable according to Figure 19, modulation areas overlaps in adjacent orbit each other.In this dish, there is such problem, that is: the wobble modulations signal of track worsens because of coming from crosstalking of adjacent orbit, and the read error rate of address signal etc. increases.

As mentioned above, in CD of the present invention, owing to be to change the physical segment type every the physical segment of proper number, so on the whole surface of described dish, modulation areas can be set adjacent to each other in adjacent orbit.Be understandable that according to above-mentioned practical work the error rate that reads the address signal that uses swinging signal etc. is low, and therefore CD of the present invention is to coil highly reliably.

To summarize the feature of conduct below according to the information recording carrier of CD of the present invention, and the bare bones of physical address reproducting method and reproducer.

Information recording carrier of the present invention is can be with respect to the information recording carrier of track record or information reproduction, and described track is divided into the physical segment of regular length.In each physical segment, be formed with N wobble data unit of regular length.As the wobble data unit, defined following type, that is: in the first half, set than 1/4 of described unit short wobble modulations first module type partly, in latter half, set than 1/4 of described unit short wobble modulations second cell type partly, and the 3rd cell type that does not have the wobble modulations part.

As physical segment, provide the section (first section or segment type 1) that in latter half, has the 3rd cell type all the time and in all the other zones, have the first module type.In addition, provide the section (second section or segment type 2) that in latter half, has the 3rd cell type all the time and in all the other zones, have second cell type.The section (the 3rd section or segment type 3) of the combination that has the 3rd cell type all the time and have first and second cell types in latter half in all the other zones is provided in addition.

In order to prevent that wobble modulations part is provided with adjacent to each other along disc radial, the physical segment setting on the track has such feature, number of times lower limit M1 that segment type 1 is set in orbit continuously and number of times upper limit M2 that segment type 2 is set continuously is set at condition that is:.In addition, it has a feature to be: in segment type 3 front and back segment type 1 and segment type 2 are set immediately respectively.

Specifically, its characteristics are: the physical segment of ten or more segment type 1 and segment type 2 is set continuously, and the physical segment of the segment type 2 more than 28 is set discontinuously.

In addition, the physical segment setting on the track is satisfied following condition.

Condition:

The physical segment of (the physical segment number-1 that comprises in the track of penetralia circumference in the zone of formation groove) individual or more segment type 1 and segment type 2 is set continuously.

The physical segment of the segment type 2 more than setting discontinuously (physical segment number+1 that comprises in the track of most external circumference in the zone of formation groove) is individual.

The physical segment of segment type 3 is set after the physical segment of segment type 1 all the time immediately, and the physical segment of segment type 2 is set after the physical segment of segment type 3 immediately.

The present invention also is applicable to the reproducting method and the reproducer of described information recording carrier.Realize the major part of reproducting method and equipment with the order of address signal treatment circuit 16 shown in Fig. 1 and controller 18.That is to say that described reproducting method has the step that definite segment type goes out present condition.In this step, detect the number of times lower limit M1 of successively reproducing segment type 1 and the number of times upper limit M2 of successively reproducing segment type 2.In addition, also detect in segment type 3 front and back segment type 1 and segment type 2 are set respectively immediately.In addition, provide such step and definite device, be used for, for example,, when detecting departure from these rules, determined to occur mistake detecting number of times lower limit, exceeding the number of times upper limit of M2 and lack under the situation that presets segment type in segment type 3 front and back less than M1.

In controller 18, M1 detecting device 18a is provided, be used to detect the number of times lower limit M1 of successively reproducing segment type 1 (first section); M2 detecting device 18b is used to detect the number of times upper limit M2 of successively reproducing segment type 2 (second section); And condition detecting device 18c, being used for the condition of the front and back position of detection segment type 3 (the 3rd section), it detects and be provided with segment type 1 (first section) and segment type 2 (second section) respectively immediately before and after segment type 3 (the 3rd section).In addition, it comprises normal condition determining unit 18d, be used for satisfying when presetting the condition that numeral sets, determining the normal reproduction state as M1, M2, and it also comprises mistake determining unit 18e, be used for detecting process, exceeding in the process of the number of times upper limit of M2 or detecting in the process of the section of presetting of the 3rd section front and back in detection less than the number of times lower limit of M1, when detecting departure from these rules, be used to determine to occur mistake.

In addition, at the step that goes out present condition and the definite device that are used for determining segment type, detect physical segment and the discontinuous physical segment that segment type 2 more than 28 is set that ten or more segment type 1 and segment type 2 are set continuously.

In addition, at the step that goes out present condition and the definite device that are used for determining segment type, determine whether to be provided with continuously (forming the physical segment number-1 that comprises in the penetralia circular orbit in the zone of groove) inferior or physical segment of segment type 1 and segment type 2 more frequently, whether do not have to be provided with continuously the physical segment of (forming physical segment number+1 that comprises in the track of penetralia circumference in the zone of groove) individual above segment type 2, whether the physical segment of segment type 3 and the physical segment that segment type 2 is set after the physical segment of segment type 3 immediately perhaps are set after the physical segment of segment type 1 all the time immediately.

In addition, concrete main points of the present invention have been summarized below.There is feature in the present invention in the information recording carrier that can write down with information reproduction.Described information recording carrier has a kind of track of partly being modulated in concentric form and the spiral form of having, and described track is divided into the section of regular length.

Described section is defined as follows.Described section is made of N unit, and each unit has three types form.First module has the modulation areas that is positioned at the unit first half, and Unit second has the modulation areas that is positioned at described unit latter half, and Unit the 3rd does not have modulation areas.In addition, described section form with three types.First section by ({ N-(N mod3) }/3) individual or more continuous Unit the 3rd and the first module formation that is positioned at all the other regional entire portion.Second section by ({ N-(N mod 3) }/3) individual or more continuous Unit the 3rd and Unit second formation that is positioned at all the other regional entire portion.The 3rd section is made of ({ N-(N mod 3) }/3) individual or more continuous Unit the 3rd, Unit second of being positioned at the first module of all the other regional first halfs and being positioned at all the other regional latter halfs.In this case, its characteristics are: the hop count order that comprises in the circumference of the track of penetralia circumference is X, and continuously (X-1) individual first and second sections at least is set.＜effect〉owing to determine the minimal amount of one type continuous physical section according to described dish, thus can protect the address information read operation, and detect read error separating timing use above-mentioned relation.In addition, for each circumference in the described dish penetralia circumference, described physical segment type can be converted, and described physical segment can be set, and modulation areas is overlapped each other on the whole surface of dish.

In addition, the information recording carrier that can write down as mentioned above with information reproduction has such feature, that is: the hop count order that comprises in the track of most external circumference circumference is Y, and (Y+1) individual above second section is not set continuously.＜effect〉most dish is made of the Class1 physical segment.For example, when determining start of record with the Class1 section as benchmark, the accuracy of detection of start of record is lower than the accuracy of detection in the Class1 section in 2 sections of types, and therefore, can obtain following advantage: when the number of Class1 section became big, the misregistration number in the entire portion of dish diminished.In addition, in the most external circumference, 2 sections of types can be set continuously.

In addition, the information recording carrier that can write down as mentioned above with information reproduction has such feature, is provided with first and second sections respectively immediately the 3rd section front and back that is:.＜effect〉can suppress the frequency of occurrences of 3 sections of types.In type 3, owing in the unit of the unit that is shorter than other types, change described WDU type, so the verification and measurement ratio of address information becomes a shade below the verification and measurement ratio of other types.Therefore, if frequency is suppressed, the number of address read error can be reduced in the entire portion of dish so.In addition, if determined 3 sections of types, the type of next physical segment must be a type 2 so, and therefore, can easily change fetch equipment.

In the present invention, obtain such feature about the information recording medium manufacturing apparatus aspect.That is, but but the medium of record/information reproduction has following structure and condition.Described medium has a kind of track of partly being modulated in concentric form and the spiral form of having, and described track is divided into the section of presetting length, and described section is made of N unit.Described unit is made of integral part, and described unit has three types form.First module has the modulation areas that is positioned at described unit first half, and Unit second has the modulation areas that is positioned at described unit latter half, and Unit the 3rd does not have modulation areas.Described section form with three types.First section by ({ N-(N mod 3)) }/3) individual or more continuous Unit the 3rd and the first module that is positioned at all the other regional entire portion constitute.Second section Unit three individual or more continuous by ({ N-(N mod 3) }/3) constitutes with the Unit second that is arranged in all the other regional entire portion.The 3rd section is made of ({ N-(N mod 3) }/3) individual or more continuous Unit the 3rd, Unit second of being positioned at the first module of all the other regional first halfs and being positioned at all the other regional latter halfs.

The information recording medium manufacturing apparatus that is used to make the information recording carrier of this type comprises measurement mechanism, is used for measuring the number of the part that a circumference at track forms; Calculation element, be used for based on measured at part number that circumference of track forms, when part number that the part number that forms in circumference of track comprises in divided by described unit the time remainder part number that obtained and the remainder part number that obtains during divided by N when the number of unit that is provided with in the circumference at track, calculate the number of the section that in circumference of track, forms; Determine device, be used for determining formed section type based on calculated value; And conversion equipment, be used for changing formed section type based on definite result.＜effect〉have measurement mechanism and definite device and making in the manufacturing equipment of operation when carrying out master in the disc spins, transformation segment type in real time, wherein said measurement mechanism is used for measuring the part number that a circumference at track forms, and described definite device is used for determining segment type.

Described definite device can be to come to determine simultaneously the segment type of two circumference of track less than the mistake of ± 1 section.＜effect〉owing to select the segment type of track to be recorded and the segment type of adjacent orbit simultaneously by simultaneously two circumference of track being carried out deterministic process, so can be set at same type to the segment type that is slightly less than one circumference, and almost can be each track translation type.

In addition, described definite device is carried out following process.

At first, if R _WobbleBe set at A≤R _WobbleIn the scope of＜B, can obtain first section (N of command record so _Segment* 2) inferior definite output.Secondly, if R _WobbleBe set at 0≤R _WobbleIn the scope of＜A, and R _WDUBe set at 0≤R _WDUIn the scope of＜E, if perhaps R _WobbleBe set at B≤R _WobbleIn the scope of＜C, and R _WDUBe set at 0≤R _WDUIn＜(E-1) the scope, can obtain first section (N of command record so _Segment) inferior, write down second section (N then _Segment) inferior definite output.The 3rd, if R _WobbleBe set at 0≤R _WobbleIn the scope of＜A, and R _WDUBe set at E≤R _WDUIn the scope of＜F, if perhaps R _WobbleBe set at B≤R _WobbleIn the scope of＜C, and R _WDUBe set at (E-1)≤R _WDUIn＜(F-1) the scope, can obtain first section (N of command record so _Segment) inferior, write down the 3rd section once and write down second section (N then _Segment) inferior definite output.

The 4th, be different under the situation of above-mentioned situation, that is, if R _WobbleBe set at 0≤R _WobbleIn the scope of＜A, and R _WDUBe set at F≤R _WDUIn the scope of＜G, if perhaps R _WobbleBe set at B≤R _WobbleIn the scope of＜C, and R _WDUBe set at (F-1)≤R _WDUIn the scope of＜G, can obtain first section (N of command record so _Segment+ 1) inferior, write down second section (N then _Segment+ 1) inferior definite output.

In this case, A=(the part number that comprises in unit)/4, B=(the part number that comprises in unit) * 3/4, C=(the part number that comprises in unit), E=(number of unit that comprises in a section)/3, and the value of E is rounded up and is calculated F=(number of unit that comprises in a section) * 2/3, and the value of F is rounded up and is calculated, and G=(number of unit that comprises in a section).

As effect, according to above-mentioned rule be used to realize the device of described rule, in the dish manufacture process,, can realize such method and apparatus by real-time transformation segment type, it can resist variation in the track space and the radial position mistake in detecting.Therefore, though on the whole surface of described dish, the lap of the modulating part of swinging chute is not radially aimed at, and can form the dish with high address reading performance yet.

Therefore, the CD by the said equipment and method manufacturing has following characteristics.That is to say, if R _WobbleBe set at A≤R _WobbleIn the scope of＜B, first section quilt is provided with (N continuously so _Segment* 2) inferior.If R _WobbleBe set at 0≤R _WobbleIn the scope of＜A, and R _WDUBe set at 0≤R _WDUIn the scope of＜E, if perhaps R _WobbleBe set at B≤R _WobbleIn the scope of＜C, and R _WDUBe set at 0≤R _WDUIn＜(E-1) the scope, so first section (N can be set continuously _Segment) inferior, second section (N is set then continuously _Segment) inferior.In addition, if R _WobbleBe set at 0≤R _WobbleIn the scope of＜A, and R _WDUBe set at E≤R _WDUIn the scope of＜F, if perhaps R _WobbleBe set at B≤R _WobbleIn the scope of＜C, and R _WDUBe set at (E-1)≤R _WDUIn＜(F-1) the scope, so first section (N can be set continuously _Segment) inferior, be provided with the 3rd section then once, and second section (N is set continuously _Segment) inferior.In addition, if R _WobbleBe set at 0≤R _WobbleIn the scope of＜A, and R _WDUBe set at F≤R _WDUIn the scope of＜G, if perhaps R _WobbleBe set at B≤R _WobbleIn the scope of＜C, and R _WDUBe set at (F-1)≤R _WDUIn the scope of＜G, so first section (N can be set continuously _Segment+ 1) inferior, second section (N is set then continuously _Segment+ 1) inferior.

In this case, N _SegmentBe in a circumference of track, form the section number, R _WobbleBe the remainder part number that when part number that the part number that forms in the circumference of track comprises in divided by described unit, obtains, and R _WDUIt is the remainder number of unit that when number of unit that the number of unit that forms in the circumference of track comprises in divided by a section, obtains.A=(the part number that comprises in unit)/4, B=(the part number that comprises in unit) * 3/4, C=(the part number that comprises in unit), E=(number of unit that comprises in section)/3, and the value of E is rounded up and is calculated, F=(number of unit that comprises in section) * 2/3, and the value of F rounded up and calculate, and G=(number of unit that comprises in section).

As＜effect 〉, the swinging chute modulating part is not radially aimed in information recording carrier, and the more than one circumference of track is not provided with second or the 3rd section continuously.In addition, be almost the operation that each track is carried out first and second sections of conversions, and should operation do not carry out so frequently.Therefore, described information recording carrier reproducer can come the executive address read operation with high precision according to simple relatively mode.

The rule that is used to select the physics segment type has below been described.The example that is used for observing described process of rule has been described herein.

The principles illustrated of described process is as follows.

The purpose of type selecting is to prevent the also swing of registration modulation.The synoptic diagram of 2 adjacent orbits has been shown among Figure 20.The starting point of track #i is just the same with the starting point of physical segment #n, and wherein i and n represent natural number.Described track #i is made up of j physical segment, a k WDU and m swing, and wherein, j represents natural number, and k and m represent non-negative integer.If k and m are not zero, physical segment #n+j is arranged in track #i and #i+1 so.

Relative position between the modulated swing in track #i and #i+1 depends on m.If m is equal to or greater than 21 and less than 63, in track #i+1, should select the Class1 physical segment so, shown in Figure 21 A.Otherwise, in track #i+1, should select type 2 physical segments, shown in Figure 21 B.For every kind of situation, in track #i, select the Class1 physical segment.

At the crossover position of 2 physical segments from the Class1 physical segment to type, type 3 physical segments can be selected once.M is not only depended in the selection of type 3 physical segments, and depends on k.The example of the situation that should select type 3 physical segments has been shown among Figure 22.In one of following condition, should select type 3 physical segments:

1.k be equal to or greater than 6 and, and m is equal to or greater than 0 and less than 21, perhaps less than 12

2.k be equal to or greater than 5 and, and m is equal to or greater than 63 and less than 84 less than 11.

The example of selecting the process of physics segment type has been shown among Figure 23.Per 2 tracks are carried out the circular treatment of described process.Each processing is described subsequently.

1. the swing number in the estimation track

Estimate the number of the decimal form of swinging in the current track according to the swing in the previous track.By the number of decimal form is rounded to the integer number N that immediate integer obtains to swing _w

2. calculate j, k, m

J, k and m by as the calculating of getting off:

$j=\frac{N_W-\left(N_W\mathrm{mod}1428\right)}{1428}$

m＝N _W?mod?84，

$k=\left(\frac{N_W-m}{84}\right)\mathrm{mod}17,$

Wherein computing x mod y represents that x is removed modulus afterwards by y.

3.2 the type selecting of individual track

According to the condition of k and m by as the type of the candidate reason section of getting off:

Condition 1:21≤m＜63

It is the physical segment that 2 tracks are selected 2j Class1.

Condition 2:0≤k＜6 and 0≤m＜21, or 0≤k＜5 and 63≤m＜84

Be that 2 tracks are selected the physical segment of j Class1 and the physical segment of j type 2.

Condition 3:6≤k＜12 and 0≤m＜21, perhaps 5≤k＜11 and 63≤m＜84

Be the physical segment of j Class1 of 2 tracks selections, physical segment and j type 2r physical segment of a type 3.

Condition 4:12≤k＜17 and 0≤m＜21, or 11≤k＜17 and 63≤m＜84

Be that 2 tracks are selected the physical segment of j+1 Class1 and the physical segment of j+1 type 2.

The present invention is not limited to the foregoing description, and in the specific implementation stage, under the situation that does not break away from technical scope of the present invention, can carry out different modifications.In addition, by making up disclosed in the above-described embodiments a plurality of ingredients rightly, can make various inventions.For example, can from described embodiment, delete some ingredient in the disclosed all constituents.In addition, can make up the ingredient that comprises usually among the different embodiment rightly.

Those skilled in the art will be easy to expect additional advantage and modification.Therefore, aspect broad, the present invention is not limited to detail and representational embodiment shown and described herein.Therefore, under the situation that does not break away from general plotting of the present invention, can make various modifications, scope of the present invention is defined by appended claims and equivalents thereof.

Claims (14)

1. information recording carrier is characterized in that comprising:

Substrate; And

Be formed on the track on the described substrate,

Described track is partly modulated, and has a kind of in concentric form and the spiral form,

Wherein said track is divided into the section of presetting length, described section is made of N unit, described unit is made of an integer part, described unit has three kinds of forms, comprise first module (P) with the modulation areas that is positioned at described unit first half, Unit second (S) with the modulation areas that is positioned at described unit latter half, and the Unit the 3rd (U) that does not have modulation areas, described section has three kinds of forms, comprise the first section-Class1 that constitutes by Unit the 3rd (U) and first module (P), second section-type 2 by Unit the 3rd (U) and Unit second (S) formation, and by Unit the 3rd (U) and first and second unit (P), (S) the 3rd section-type 3 that constitutes, the setting of described the above section of track is constructed to be set at condition with first and second sections number of times lower limit M1 being set continuously and second section number of times upper limit M2 being set continuously, and be provided with first and second sections respectively immediately the 3rd section front and back, so that prevent modulation areas radially being set adjacent to each other along dish.

2. information recording carrier as claimed in claim 1 is characterized in that, first and second sections quilts are provided with continuously and are no less than ten times, and second section is not provided with more than 28 times continuously.

3. information recording carrier as claimed in claim 1 is characterized in that, the above section of track at least one that satisfies in the following condition be set:

Condition:

Be provided with and be no less than (forming the hop count order-1 that comprises in the track of penetralia circumference in the zone of groove) individual first and second sections continuously;

(forming hop count order+1 that comprises in the track of most external circumference in the zone of groove) individual above second section is set discontinuously; And

After first section, be provided with the 3rd section all the time immediately, and after the 3rd section, be provided with second section immediately.

4. information recording carrier is characterized in that comprising:

First, second and the 3rd section,

Wherein said first section comprise be arranged in its certain zone be no less than ({ N-(N mod3) }/3) individual continuous Unit the 3rd and the first module that is arranged in all the other regional entire portion,

Described second section comprise be arranged in its certain zone be no less than ({ N-(N mod 3) }/3) individual continuous Unit the 3rd and Unit second that is arranged in all the other regional entire portion,

Described the 3rd section comprises and is no less than ({ N-(N mod 3) }/3) individual continuous Unit the 3rd, is positioned at the first module of all the other regional first halfs and is positioned at Unit second of all the other regional latter halfs,

At R _WobbleBe set at A≤R _WobbleUnder the situation in the scope of＜B, (N is set continuously _Segment* 2) individual first section,

At R _WobbleBe set at 0≤R _WobbleInterior and the R of the scope of＜A _WDUBe set at 0≤R _WDUSituation and R in the scope of＜E _WobbleBe set at B≤R _WobbleInterior and the R of the scope of＜C _WDUBe set at 0≤R _WDUOne of situation in＜(E-1) the scope is provided with (N down continuously _Segment) individual first section, (N is set then continuously _Segment) individual second section,

At R _WobbleBe set at 0≤R _WobbleInterior and the R of the scope of＜A _WDUBe set at E≤R _WDUSituation and R in the scope of＜F _WobbleBe set at B≤R _WobbleInterior and the R of the scope of＜C _WDUBe set at (E-1)≤R _WDUOne of situation in＜(F-1) the scope is provided with (N down continuously _Segment) individual first section, one the 3rd section and the continuous (N of setting are set then _Segment) individual second section,

At R _WobbleBe set at 0≤R _WobbleInterior and the R of the scope of＜A _WDUBe set at F≤R _WDUSituation and R in the scope of＜G _WobbleBe set at B≤R _WobbleInterior and the R of the scope of＜C _WDUBe set at (F-1)≤R _WDUOne of situation in the scope of＜G is provided with (N down continuously _Segment+ 1) individual first section, (N is set then _Segment+ 1) individual second section,

Wherein, N _SegmentBe illustrated in the number of the section that forms in the circumference of track,

R _WobbleThe remainder number partly that obtains during the number of the part that expression comprises in divided by a unit when the number of the part that forms in the circumference at track,

R _WDUThe number of the remainder unit that expression obtains when the number of the unit that the number of the unit that forms in the circumference at track comprises in divided by a section,

A=(number of the part that comprises in unit)/4, B=(number of the part that comprises in unit) * 3/4, C=(number of the part that comprises in unit), E=(number of the unit that comprises in section)/3, and the value of E is rounded up and is calculated, F=(number of the unit that comprises in section) * 2/3, and the value of F rounded up and calculate, and G=(number of the unit that comprises in section).

5. the physical address reproducting method of an information recording carrier, described information recording carrier has a kind of track of partly being modulated in concentric form and the spiral form of having, described track is divided into the section of presetting length, described section is made of N unit, described unit is made of an integer part, described unit has three kinds of forms, comprise first module with the modulation areas that is positioned at described unit first half, Unit second with the modulation areas that is positioned at described unit latter half, and the Unit the 3rd that does not have modulation areas, described section has three kinds of forms, comprise first section that constitutes by Unit the 3rd and first module, constitute by Unit the 3rd and Unit second second section, and by Unit the 3rd and first and second unit constitute the 3rd section, the setting of described the above section of track is constructed to be set at condition first and second sections number of times lower limit M1 being set continuously and second section number of times upper limit M2 being set continuously, and be provided with first and second sections respectively immediately the 3rd section front and back, so that prevent modulation areas along radially being set adjacent to each other of coiling, described method comprises:

Detect the number of times lower limit M1 (18a) of first section of successively reproducing,

Detect the number of times upper limit M2 (18b) of second section of successively reproducing,

Detection is provided with first and second sections (18c) respectively immediately the 3rd section front and back,

When M1, M2 satisfy when presetting the condition that numeral sets, determine normal reproduction state (18d), and

Detecting number of times lower limit, detecting and exceed the number of times upper limit of M2 and detect in one of the process of the section of presetting of the 3rd section front and back, when detecting departure from these rules, determine to occur mistake less than M1.

6. the physical address reproducting method of information recording carrier as claimed in claim 5, it is characterized in that, described first section comprise be arranged in its certain zone be no less than ({ N-(N mod 3) }/3) individual continuous Unit the 3rd and the first module that is arranged in all the other regional entire portion

Described second section comprise be arranged in its certain zone be no less than ({ N-(N mod 3) }/3) individual continuous Unit the 3rd and Unit second that is arranged in all the other regional entire portion,

Described the 3rd section comprises and is no less than ({ N-(N mod 3) }/3) individual continuous Unit the 3rd, is arranged in the first module of all the other regional first halfs and is arranged in Unit second of all the other regional latter halfs,

At R _WobbleBe set at A≤R _WobbleUnder the situation in the scope of＜B, (N is set continuously _Segment* 2) individual first section,

At R _WobbleBe set at 0≤R _WobbleInterior and the R of the scope of＜A _WDUBe set at 0≤R _WDUSituation and R in the scope of＜E _WobbleBe set at B≤R _WobbleInterior and the R of the scope of＜C _WDUBe set at 0≤R _WDUOne of situation in＜(E-1) the scope is provided with (N down continuously _Segment) individual first section, (N is set then continuously _Segment) individual second section,

At R _WobbleBe set at 0≤R _WobbleInterior and the R of the scope of＜A _WDUBe set at E≤R _WDUSituation and R in the scope of＜F _WobbleBe set at B≤R _WobbleInterior and the R of the scope of＜C _WDUBe set at (E-1)≤R _WDUOne of situation in＜(F-1) the scope is provided with (N down continuously _Segment) individual first section, be provided with one the 3rd section then, and continuously (N be set _Segment) individual second section,

At R _WobbleBe set at 0≤R _WobbleInterior and the R of the scope of＜A _WDUBe set at F≤R _WDUSituation and R in the scope of＜G _WobbleBe set at B≤R _WobbleInterior and the R of the scope of＜C _WDUBe set at (F-1)≤R _WDUIn one of situation in the scope of＜G following time, (N is set continuously _Segment+ 1) individual first section, (N is set then _Segment+ 1) individual second section,

N _SegmentBe illustrated in the number of the section that forms in the circumference of track,

R _WobbleThe remainder number partly that obtains during the number of the part that expression comprises in divided by a unit when the number of the part that forms in the circumference at track,

R _WDUThe remainder number of unit that expression obtains when the number of the unit that the number of the unit that forms in the circumference at track comprises in divided by a section,

A=(number of the part that comprises in unit)/4, B=(number of the part that comprises in unit) * 3/4, C=(number of the part that comprises in unit), E=(number of the unit that comprises in section)/3, and the value of E is rounded up and is calculated, F=(number of the unit that comprises in section) * 2/3, and the value of F rounded up and calculate, and G=(number of the unit that comprises in section).

7. the physical address reproducting method of information recording carrier as claimed in claim 6, it is characterized in that, detect number of times lower limit M1 and comprise whether detection is provided with first and second sections that are no less than 10 continuously, and detection number of times upper limit M2 comprises that detection is not provided with second section more than 28 continuously.

8. the physical address reproducting method of information recording carrier as claimed in claim 6, it is characterized in that, detect number of times lower limit M1 (being formed with the hop count order-1 that comprises in the track of penetralia circumference in the zone of groove) individual first and second sections that comprise whether detection is provided with continuously and is no less than, and detect number of times upper limit M2 and comprise and detect and not have to be provided with continuously (being formed with hop count order+1 that comprises in the track of most external circumference in the zone of groove) more than individual second section.

9. the physical address reproducer of an information recording carrier, described information recording carrier has a kind of track of partly being modulated in concentric form and the spiral form of having, described track is divided into the section of presetting length, described section is made of N unit, described unit is made of an integer part, described unit has three kinds of forms, comprise first module with the modulation areas that is positioned at described unit first half, Unit second with the modulation areas that is positioned at described unit latter half, and the Unit the 3rd that does not have modulation areas, described section has three kinds of forms, comprise first section that constitutes by Unit the 3rd and first module, constitute by Unit the 3rd and Unit second second section, and by Unit the 3rd and first and second unit constitute the 3rd section, the setting of described the above section of track is constructed to be set at condition first and second sections number of times lower limit M1 being set continuously and second section number of times upper limit M2 being set continuously, and be provided with first and second sections respectively immediately the 3rd section front and back, so that prevent that modulation areas from along radially being set adjacent to each other of coiling, is characterized in that described equipment comprises:

Be used to detect the device (18a) of the number of times lower limit M1 of first section of successively reproducing,

Be used to detect the device (18b) of the number of times upper limit M2 of second section of successively reproducing,

Be used to detect first and second sections device (18c) be set respectively immediately the 3rd section front and back,

Be used for satisfying the device (18d) of determining the normal reproduction state when presetting the condition that numeral sets as M1, M2, and

Be used for detecting number of times lower limit, detecting one of the process that exceeds the number of times upper limit of M2 and detect the section of presetting of the 3rd section front and back is determined the appearance mistake when detect departure from these rules device (18e) less than M1.

10. the physical address reproducer of information recording carrier as claimed in claim 9, it is characterized in that, described first section comprise be arranged in its certain zone be no less than ({ N-(N mod3) }/3) individual continuous Unit the 3rd and the first module that is arranged in all the other regional entire portion

Described second section comprise be arranged in its certain zone be no less than ({ N-(N mod 3) }/3) individual continuous Unit the 3rd and Unit second that is arranged in all the other regional entire portion,

Described the 3rd section comprises and is no less than ({ N-(N mod 3) }/3) individual continuous Unit the 3rd, is positioned at the first module of all the other regional first halfs and is positioned at Unit second of all the other regional latter halfs,

At R _WobbleBe set at A≤R _WobbleUnder the situation in the scope of＜B, (N is set continuously _Segment* 2) individual first section,

At R _WobbleBe set at 0≤R _WobbleInterior and the R of the scope of＜A _WDUBe set at 0≤R _WDUSituation and R in the scope of＜E _WobbleBe set at B≤R _WobbleInterior and the R of the scope of＜C _WDUBe set at 0≤R _WDUOne of situation in＜(E-1) the scope is provided with (N down continuously _Segment) individual first section, (N is set then continuously _Segment) individual second section,

At R _WobbleBe set at 0≤R _WobbleInterior and the R of the scope of＜A _WDUBe set at E≤R _WDUSituation and R in the scope of＜F _WobbleBe set at B≤R _WobbleInterior and the R of the scope of＜C _WDUBe set at (E-1)≤R _WDUOne of situation in＜(F-1) the scope is provided with (N down continuously _Segment) individual first section, be provided with one the 3rd section then, and continuously (N be set _Segment) individual second section,

At R _WobbleBe set at 0≤R _WobbleInterior and the R of the scope of＜A _WDUBe set at F≤R _WDUSituation and R in the scope of＜G _WobbleBe set at B≤R _WobbleInterior and the R of the scope of＜C _WDUBe set at one of situation in the scope of (F-1)≤RWDU＜G down, (N is set continuously _Segment+ 1) individual first section, (N is set then _Segment+ 1) individual second section,

N _SegmentBe illustrated in the number of the section that forms in the circumference of track,

R _WobbleThe remainder number partly that obtains during the number of the part that expression comprises in divided by a unit when the number of the part that forms in the circumference at track,

R _WDUThe number of the remainder unit that expression obtains when the number of the unit that the number of the unit that forms in the circumference at track comprises in divided by a section,

A=(number of the part that comprises in unit)/4, B=(number of the part that comprises in unit) * 3/4, C=(number of the part that comprises in unit), E=(number of the unit that comprises in section)/3, and the value of E is rounded up and is calculated, F=(number of the unit that comprises in section) * 2/3, and the value of F rounded up and calculate, and G=(number of the unit that comprises in section).

11. the physical address reproducer of information recording carrier as claimed in claim 10, it is characterized in that, the device that is used to detect number of times lower limit M1 detects whether be provided with first and second sections that are no less than 10 continuously, and the pick-up unit that is used to detect number of times upper limit M2 detects second section that is not provided with continuously more than 28.

12. the physical address reproducer of information recording carrier as claimed in claim 10, it is characterized in that, the pick-up unit that is used for detecting number of times lower limit M1 detects and whether is provided with continuously and is no less than (being formed with the hop count order-1 that comprises in the track of zone penetralia circumference of groove) individual first and second sections, and the pick-up unit that is used for detecting number of times upper limit M2 detects and not have to be provided with continuously (being formed with hop count order+1 that comprises in the track of zone most external circumference of groove) more than individual second section.

13. the manufacturing equipment of an information recording carrier, described information recording carrier comprises a kind of track of partly being modulated in concentric form and the spiral form of having, described track is divided into the section of presetting length, described section is made of N unit, described unit is made of an integer part, described unit has three kinds of forms, comprise first module with the modulation areas that is positioned at described unit first half, Unit second with the modulation areas that is positioned at described unit latter half, and the Unit the 3rd that does not have modulation areas, described section has three kinds of forms, comprise by being arranged in being no less than ({ N-(N mod 3) }/3) individual continuous Unit the 3rd and being arranged in first period that the first module of all the other regional entire portion constitutes of its certain zone, by being arranged in being no less than ({ N-(N mod 3) }/3) individual continuous Unit the 3rd and being arranged in second period that Unit second of all the other regional entire portion constitutes of its certain zone, and by being no less than ({ N-(N mod 3) }/3) individual continuous Unit the 3rd, be positioned at the first module of all the other regional first halfs and the 3rd section of Unit second formation that is positioned at all the other regional latter halfs, it is characterized in that described equipment comprises:

Measurement mechanism is used for measuring the number of the part that a circumference at track forms,

Calculation element is used for the part number that forms based on a circumference at track of having measured, calculates the number (N of the section that will form in a circumference of track _Segment), the number (R of the remainder part that obtains during the number of the part that comprises in divided by described unit when the number of the part that forms in the circumference at track _Wobble) and the remainder number of unit (R that when number of unit that the number of unit that is provided with in a circumference comprises in divided by described section, obtains _WDU),

Determine device, be used for determining formed section type based on the value of being calculated, and

Conversion equipment is used for changing formed section type based on definite result.

14. the manufacturing equipment of information recording carrier as claimed in claim 13 is characterized in that, described definite device comprises: first device is used at R _WobbleBe set at A≤R _WobbleUnder the situation in the scope of＜B, the first segment record (N _Segment* 2) inferior; Second device is used at R _WobbleBe set at 0≤R _WobbleInterior and the R of the scope of＜A _WDUBe set at 0≤R _WDUSituation and R in the scope of＜E _WobbleBe set at B≤R _WobbleInterior and the R of the scope of＜C _WDUBe set at 0≤R _WDUOne of situation in＜(E-1) the scope down, the first segment record (N _Segment) inferior, then the second segment record (N _Segment) inferior; The 3rd device is used at R _WobbleBe set at 0≤R _WobbleInterior and the R of the scope of＜A _WDUBe set at E≤R _WDUSituation and R in the scope of＜F _WobbleBe set at B≤R _WobbleInterior and the R of the scope of＜C _WDUBe set at (E-1)≤R _WDUOne of situation in＜(F-1) the scope writes down first section (N down _Segment) inferior, write down the 3rd section then once, and write down second section (N _Segment) inferior; And the 4th the device, be used in other cases, promptly at R _WobbleBe set at 0≤R _WobbleInterior and the R of the scope of＜A _WDUBe set at F≤R _WDUSituation and R in the scope of＜G _WobbleBe set at B≤R _WobbleInterior and the R of the scope of＜C _WDUBe set at (F-1)≤R _WDUOne of situation in the scope of＜G writes down first section (N down _Segment+ 1) inferior, write down second section (N then _Segment+ 1) inferior; And, A=(number of the part that comprises in unit)/4, B=(number of the part that comprises in unit) * 3/4, C=(number of the part that comprises in unit), E=(number of the unit that comprises in section)/3, and the value of E rounded up and calculate, F=(number of the unit that comprises in section) * 2/3, and the value of F is rounded up and is calculated, and G=(number of the unit that comprises in section).

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