CN100394481C - Optical disc medium and data recording method and apparatus - Google Patents
Optical disc medium and data recording method and apparatus Download PDFInfo
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- CN100394481C CN100394481C CNB2005100895652A CN200510089565A CN100394481C CN 100394481 C CN100394481 C CN 100394481C CN B2005100895652 A CNB2005100895652 A CN B2005100895652A CN 200510089565 A CN200510089565 A CN 200510089565A CN 100394481 C CN100394481 C CN 100394481C
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Abstract
A molding and film forming apparatus 700 molds a disc substrate from a stamper 330 formed from an optical disc disc-master 320 and forms a coating film, for example, a reflective film onto the disc substrate, thereby forming a recorded optical disc 360. A postscript apparatus 200 writes postscript information once onto an optical disc 340 formed by the molding and film forming apparatus 700. As postscript information, a laser beam is irradiated to a predetermined interval of the optical disc 340, a portion which is detected as a pit is formed, and an optical disc 350 on which postscript information 420 has been recorded is formed. Identification information which enables each optical disc 340 to be identified can be postscribed. The postscript information is recorded in a conventional format and the postscript information can be reproduced by an existing reproducing apparatus.
Description
The application is dividing an application of following application:
Denomination of invention: CD media, data record method and device
The applying date: on June 3rd, 2002 application number: 02811562.7
Technical area
The present invention relates to be applied to CD media, the data record method and device of the CD of for example read-only (ROM) type.
Background technology
The specification of the compact disk (Compact Disc:CD) that extensively popularize today is called the compact disk audio frequency, and it is according to the specification of record in the specifications (Red Book).As the basis,, constituted so-called CD family with these specifications to standardizing with the various forms headed by the CD-ROM.In the following description,, be the general name of the dish of the various forms that comprised of expression CD family in the occasion that only is called CD.The CD of CD etc. is applied to many aspects as the recording medium of recording musical data, moving-picture data, recreation and computer application program etc.
With CD is the traditional fabrication operation of example explanation CD.The 10th figure is the pie graph that is applied to the disc making system of CD.The manufacturing system of CD comprises substantially: former dish producing device, make the former dish of CD by laser beam; And molding and film forming apparatus, use the pressing mold of making from the former dish of CD, make a plurality of dish substrates and on the dish substrate, form film.
Making the former dish producing device of the former dish 320 of CD is made up of EFM signal carrying device 500 and laser beam recorder 600.Molding and film forming apparatus 700 forms the dish substrate by the pressing mold of being made by the former dish 320 of CD 330, forms for example reflectance coating of coverlay on the dish substrate, thereby makes the CD 360 that has write down.EFM signal carrying device 500 reads in the information data of record from female CD 310, will be to reading in that signal carries out EFM (Eight to Fourteen Modulation:8 to 14 modulation) modulation and the EFM signal that generates to laser beam recorder 600 outputs.The former dish 320 of CD is that the photoresist of coating photoactive substance on glass plate forms.Laser beam recorder 600 is according to the EFM signal, to former dish 320 irradiating lasers of CD.Photoresist film carries out development treatment, and under the occasion of eurymeric photoresist, sensitization place fusing forms relief pattern on photoresist film, forms the pit row of form according to the rules on the former dish of CD 320 surfaces.
Then,, make the mould be called pressing mold 330 according to the former dish 320 of CD, on this pressing mold anti-phase transcription the pit pattern of the former dish 320 of this CD.These pressing mold 330 making dish substrates of molding and film forming apparatus 700 usefulness, and, by on the dish substrate, covering the coverlay and the diaphragm of reflectance coating etc., duplicate the CD 360 that has write down.The relief pattern transcription that forms on the former dish 320 of CD forms pit pattern to the dish substrate.The method for making of dish substrate has compression molding, injection molding, photo-hardening method etc.
But the recording disk 360 that traditional disc making system makes is not a recording film, is coated with reflectance coating as coverlay, is read-only type, can't record addition information after the making.
Recently, for the management of the recording disk 360 that records the provisioning information data etc., expectation realizes can be every method of the information of appending of the unique identifier of record etc. on the recording disk 360.But, because recording disk 360 is made by above-mentioned production process, thereby, after handling by molding and film forming apparatus 700, be difficult under the situation that does not influence the information data that has write down to the 360 record addition information of recording disk that write down the provisioning information data.
Thereby the method that proposes as appending the mode of information to traditional recording disk record identifier etc. all adopts the method for coming record addition information in the mode of the record modulation system that is different from main signal.But, can only read with driver with the recording disk 360 of these method record addition information, and can't read the information of appending, thereby the problem of interchangeability difference is arranged with existing driver with special-purpose read functions.
In addition, definition has BCA (Burst Cutting Area: the burst clipping region), can append information to this regional record among the DVD-ROM.But this zone is set to be different from other zones of main signal (EFM+ modulation) portion, can only read in the driver with special-purpose read functions.In addition, BCA is unsuitable for DVD-Video etc.
Like this, the CD of the CD of traditional specification, MD or the DVD except DVD-ROM dish etc. is in case after writing down, can't write down the information of appending of identifying information etc. again.
The present invention proposes in view of such problem, and its purpose is to provide: according to traditional specification to CD media, the data record method and device of recording disk record addition information.
Summary of the invention
In order to deal with problems, the application's invention is a kind of data record method, in order to make CD media, CD media has formation corresponding to the coverlay that forms on the substrate of shape of the information data of modulation and the substrate, wherein, no modulating range partly is set,, the information of stipulating of writing afterwards is recorded no modulating range by carrying out record at coverlay.
Another invention of the application is a kind of data recording equipment, in order to make CD media, above-mentioned CD media has formation corresponding to the coverlay that forms on the substrate of shape of the information data of modulation and the substrate, no modulating range partly is set, by carrying out record, the information of stipulating of writing afterwards is recorded above-mentioned no modulating range at above-mentioned coverlay.
Description of drawings
The 1st figure is the structural drawing of the disc making system of one embodiment of the invention.
The 2nd figure is the synoptic diagram of the signal format of expression CD.
The 3rd figure is the synoptic diagram that information recording method is write afterwards in explanation the of the present invention the 1st.
The 4th figure is the synoptic diagram that information recording method is write afterwards in explanation the of the present invention the 2nd.
The 5th figure is the synoptic diagram that information recording method is write afterwards in explanation the of the present invention the 2nd.
The 6th figure is the synoptic diagram that information recording method is write afterwards in explanation the of the present invention the 3rd.
The 7th figure is the synoptic diagram that information recording method is write afterwards in explanation the of the present invention the 4th.
The 8th figure is the synoptic diagram of the formation of the sub-coded data of expression.
The 9th figure is the synoptic diagram of writing afterwards information recording method of explanation the of the present invention the 5th.
The 10th figure is the structural drawing of existing disc making system.
The explanation of symbol
100 modulation signal carrying devices
110 recorded information playback portions
120 modulation intelligence generating units
130 modulation intelligence storage parts
140 modulation signal efferents
200 write afterwards device
210 modulation intelligence storage parts
220 write afterwards control part
230 write afterwards portion
310 female CDs
The former dish of 320 CDs
330 pressing molds
340 recording disks
350 CD goods
410 write afterwards related information
420 write afterwards information
600 laser beam recorders
700 molding and film forming apparatus
Embodiment
Below, with reference to drawing explanation one embodiment of the present of invention.In addition, because the embodiment of the following stated is a preferred concrete example of the present invention, thereby has added technical superior various qualifications, but scope of the present invention is not limited to these embodiment, unless special qualification record of the present invention is arranged in the following description.
The 1st figure is the structural drawing of employing disc making of the present invention system.Disc making operation of the present invention comprises substantially: former dish production process, make the former dish of CD by laser beam; Be shaped as membrane process, use from the pressing mold of the former dish making of CD and make a plurality of dish substrates and form film at the dish substrate; And write afterwards operation.
Making the former dish producing device of the former dish 320 of CD is made up of EFM signal carrying device 500 and laser beam recorder 600.The pressing mold 330 formation dish substrates of molding and film forming apparatus 700 by making from the former dish 320 of CD form for example reflectance coating of coverlay, thereby produce recording disk 360 on the dish substrate.Write afterwards device 200 and write afterwards information to the CD 340 of molding and film forming apparatus 700 making.
The former dish 320 of CD is that the photoresist of coating photoactive substance on glass plate forms.Laser beam recorder 600 according to from the signal of modulation signal carrying device 100 to former dish 320 irradiating lasers of CD.Photoresist film carries out development treatment, and in the occasion of eurymeric photoresist, sensitization place fusing forms relief pattern on photoresist film, forms the pit row, group of form according to the rules etc. on the former dish of CD 320 surfaces.
Then, according to the former dish 320 of CD, making is called as the mould with the pressing mold 330 of the anti-phase transcription of pit pattern of the former dish 320 of this CD.These pressing mold 330 formation dish substrates of molding and film forming apparatus 700 usefulness, and, recording disk 340 made by covering coverlay and diaphragm on the dish substrate.The relief pattern that forms on the former dish 320 of transcription CD on the dish substrate forms pit pattern.The method for making of dish substrate has compression molding, injection molding, photo-hardening method etc.
Modulation signal carrying device 100 comprises: recorded information playback portion 110, and read in and reset and record the information data of CD from female CD 310; Modulation intelligence generating unit 120 is transformed into the information data of resetting the modulating data of prescribed form; The modulation intelligence storage part 130 of storage modulation data information; And the modulation signal efferent 140 of output modulation signal.
Recorded information playback portion 110 resets female CD 310 records successively from whole zone provisioning information data send to modulation intelligence generating unit 120 with the information data of resetting.Female CD 310 is master media (information source) of CD-R etc., records the provisioning information data of record on the former dish 320 of CD.The information data of regulation be music data, pictorial data or, the information data arbitrarily of program etc.Recorded information playback portion 110 carries out for example encoding process of Error Correction of Coding.
Modulation intelligence generating unit 120 is transformed into the data of the form of predesignating with the information data of resetting, and the digital modulation of stipulating is handled.For example generate the data of the data layout of CD, data are carried out the EFM modulation.The modulating data that generates stores modulation intelligence storage part 130 into, simultaneously to 140 outputs of modulation signal efferent.Modulating data is the data of 1/0 bit pattern of prescribed form.In addition, modulation intelligence generating unit 120 consult and carry out as required writing afterwards of the appointment etc. of writing afterwards the zone relevant write afterwards related information 410.
The modulating data that 130 storages of modulation intelligence storage part are generated by modulation intelligence generating unit 120.The modulating data that modulation signal efferent 140 is generated by modulation intelligence generating unit 120 by the clock output with regulation, the generation modulation signal is to laser beam recorder 600 outputs.
The recording disk 340 of information data that has been shaped as these pressing mold 330 duplicated records of changing device 700 usefulness.Recording disk 340 be in so recording information data, but the CD of state of information do not write afterwards in record.
Writing afterwards device 200 comprises: modulation intelligence storage part 210, and related information 410 or modulating data are write afterwards in storage; Write afterwards control part 220, carry out the control of writing afterwards; And write afterwards portion 230, write afterwards to CD 340 execution according to writing afterwards control part 220.
The modulating data of writing afterwards related information 410 or 100 generations of modulation signal carrying device that modulation intelligence storage part 210 storage modulation signal carrying devices 100 utilize.Write afterwards control part 220 according to writing afterwards related information 410 or modulating data, calculate the zone that information 420 write afterwards in record, simultaneously, control is write afterwards information 420 to this zone.Write afterwards portion 230 according to writing afterwards control part 220, write down the information of writing afterwards 420, make the CD 350 that information 420 write afterwards in record by laser beam to the high output of CD 340 irradiations.For example write afterwards information 420 and be any information of information relevant etc. with CD 340.Write afterwards in the device 200, can write afterwards information 420, for example can write afterwards the unique identifying information that to discern each CD 340 each CD 340 changes.
The action and the method for making CD of the disc making system that constitutes so below are described.
In the modulation signal carrying device 100, the information data that writes down on the female CD 310 of recorded information playback portion 110 playbacks also sends to modulation intelligence generating unit 120.Modulation intelligence generating unit 120 is as required with reference to writing afterwards related information 410, and the information data of resetting is transformed into the form of regulation, generates modulating data.When modulating data is stored in modulation intelligence storage part 130, send to modulation signal efferent 140, as modulation signal to laser beam recorder 600 outputs.
Then, write afterwards in the device 200, write afterwards related information 410 or modulation signal data pattern what modulation intelligence storage part 210 stored in advance that modulation signal carrying device 100 utilizes.Write afterwards control part 220 according to writing afterwards related information 410 or modulating data, calculate the zone that information 420 write afterwards in record, control is write afterwards portion 230 and is write afterwards information 420 to this zone.Write afterwards portion 230 according to writing afterwards control part 220, according to the data of the information of writing afterwards 420 laser beam after with modulate intensity to CD 340 irradiations, thereby produce the CD 350 that has write down the information of writing afterwards.
As mentioned above, in modulation signal carrying device 100, though, be in the modulation treatment generation modulation signal same with tradition as required with reference to writing afterwards related information 410.According to this modulation signal matrix manufacturing CD 340.Write afterwards in the device 200,, calculate record and write afterwards the zone of information 420 and write down the information 420 of writing afterwards according to writing afterwards related information 410 or modulating data.Owing to write afterwards information 420 and can set arbitrarily, thereby can be to the input of recording disk other identifying information of traditional modulation system.Like this, the information of writing afterwards of identifying information of realizing etc. can be difficult in the past, the purposes of CD can be expanded to the video disc recording that has write down.
In addition, because the information of writing afterwards of writing afterwards is with traditional format record, thereby the transformation and the special circuit that needn't carry out playback machine (player, driver etc.) just can be read.And, needn't change the operation of existing optical disc production, write afterwards device and can write afterwards by appending.
Below, with the concrete recording of information method of writing afterwards of example explanation of CD.The 2nd figure represents the data structure of 1 frame of CD.Among the CD, form the verification component Q and the verification component P of each 4 symbol from 12 samples of total (24 symbol) of the digital audio-frequency data of 2 channels.To 1 symbol of the additional subcode of 32 symbols of this total and form 33 symbols (264 data bit), be one group and handle.That is, in 1 frame after the EFM modulation, comprise 33 symbols of forming by the P verification component of the Q verification component of the data of the subcode of 1 symbol, 24 symbols, 4 symbols, 4 symbols.
Among the EFM, each symbol (8 data bit) is transformed into 14 channel bit.The minimum anti-phase interval of EFM modulation ( tracer signal 1 and 1 between 0 number become minimum anti-phase interval) Tmin is 3T, it is 0.87 μ m that the pit suitable with 3T grows up to.The pit length suitable with T is long for the shortest pit.Maximum anti-phase interval ( tracer signal 1 and 1 between 0 number become maximum anti-phase interval) Tmax is 11T.In addition, even when 14 bits interconnect,, dispose the tolerance limit bit (also claiming to connect bit) of 3 bits between each 14 channel bit in order to satisfy the run length restriction condition of above-mentioned Tmin=3T, Tmax=11T.As the tolerance limit bit, 4 kinds of patterns of (000), (001), (010), (100) have been prepared.And, the beginning additional frame synchronization pattern of frame.The cycle of signaling channel bit, the frame synchronization pattern was 11T, 11T and the continuous pattern of 2T when being T.Because such pattern can not produce according to the EFM modulating rule, thereby can detect frame synchronization by special pattern.1 frame is made up of total bit number 588 channel bit.Frame rate is made as 7.35kHz.
The set of 98 such frames is called sub-code frame (or subcode piece).Resetting 98 frames is made up of frame synchronization portion, subcode portion and data and the verification component part of the beginning of identification sub-code frame with the sub-code frame that also shows continuously on longitudinal direction.In addition, 1/75 second of the playback duration of this sub-code frame and common CD quite.
This subcode portion is formed by 98 frames.2 frames of the beginning in the subcode portion all are the synchronization patterns of sub-code frame, also are the patterns of the violation (out of rule) of EFM simultaneously.In addition, each bit in the subcode portion constitutes P respectively, Q, R, S, T, U, V, W channel.
Then, several examples of writing afterwards the recording of information method of the present invention are described successively.
The 1st writes afterwards the recording of information method is, when in the modulation signal carrying device, carrying out the modulation of information data, the any interval that is created on modulation signal is provided with the modulation signal of no modulating range and makes CD, writes afterwards the method for information in writing afterwards device to no modulating range record.
The 3rd figure illustrates that the of the present invention the 1st writes afterwards information recording method.
In the modulation signal carrying device 100, the information that the no modulating range that inserts at modulating data (below, suitably be called the EFM signal) is relevant obtains from writing afterwards related information 410.The EFM data where insertion does not have modulating range or inserts several no modulating ranges is arbitrarily, do not carry out specific.But, but they can set the CD 340 that tracking servo has inserted no modulating range for, and promptly continuous no modulating range is set in below the frequency band of tracking servo.The method of this tracking does not limit especially.
In the example of the 3rd figure, before EFM modulation, the sub-encoding section of 8 bits is made as no modulating range, after modulation, the sub-encoding section of 14 channel bit is made as no modulating range.No modulating range can be arranged on the sub-encoding section except that synchronization pattern and any place of data portion.In addition, can a plurality of no modulating ranges be set interval at interval certain with certain or at random.Modulation intelligence generating unit 120 is according to such related information 410 of writing afterwards, and a part that is created on the EFM data pattern is provided with the EFM signal of no modulating range, outputs to laser beam recorder 600.Output to the EFM signal of laser beam recorder 600, that is, in the waveform of the EFM signal of record, the signal level of sub-encoding section becomes 0 on the former dish 320 of CD.There is not pit in the CD 340 of Zhi Zuoing so in the sub-encoding section of no modulating range.That is, all become land area.
Write afterwards in the device 200, obtain and write afterwards related information 410, store modulation intelligence storage part 210 in advance into.Write afterwards 220 pairs of control parts and write afterwards information 420 execution BFM modulation, the portion that writes afterwards 230 of the laser of high output is sent in control, at sub-encoding section formation pit, to write down this EFM signal in the interval that is equivalent to sub-encoding section.The represented pit of the 3rd figure bend is the pit that is formed by the information of writing afterwards.By writing afterwards the CD goods 350 that device 200 is carried out after writing afterwards, write afterwards the modulation signal of information 420 at the interval record that is equivalent to sub-encoding section.
In the example of the 3rd figure, the pattern of 14 channel bit after writing afterwards becomes (01001000100100).In addition, in 1 position of channel bit, the level inversion of EFM signal.This 14 channel bit is that the symbol of 8 bits of 40h is carried out EFM modulation and acquisition.H represents 16 systems, and the pattern of 8 bits is (01000000).This 8 bit represents then to become the value of " 64 " with 10 systems.Represented among the figure that the information bit that tolerance limit bit by 3 bits is positioned at after the sub-encoding section is the example of 00h.
Like this, on the CD that the modulation signal of information data was write down as having or not of pit of coverlay, can write down the information of writing afterwards with same modulation system modulation.By writing afterwards information in the different data conduct of each disc recording, the identifying information that can be used as CD reads.In addition, carry out the CD goods after writing afterwards, in the playback machine corresponding with traditional EFM modulation, the modulation signal of the information of writing afterwards of in the modulation signal of playback information data, can resetting.Like this, can in the playback machine, be provided with in order to read the special circuit of individual recognition information, the individual recognition information of just can resetting.
In the above-mentioned explanation, in the EFM of information data data, insert no modulating range, still also can replace no modulating range and adopt the servo special-purpose modulating range of the modulation of having carried out servo special use.This occasion, write afterwards related information 410 and be the information of the modulating range after the servo special-purpose modulation that specified in the execution of inserting in any interval of modulation signal data pattern, the modulation intelligence generating unit 120 of modulation signal carrying device 100 is according to writing afterwards related information, generation is with the part of the modulation signal data pattern modulation signal data as the servo special-purpose modulating range of servo special use, that writes afterwards device 200 writes afterwards control part 220 according to writing afterwards related information, carries out and writes afterwards above-mentioned control of writing afterwards the modulation signal of information to servo special-purpose modulating range.In addition, the intensity of the modulation signal of servo special-purpose modulating range is set in to can read by writing afterwards device 200 and carries out in the strength range of the recording disk after writing afterwards.
Then, illustrate that the of the present invention the 2nd writes afterwards information recording method.In the 2nd recording method, in the modulation signal carrying device, generate the EFM signal after the information data modulation, by former dish production process and be shaped as membrane process and make the CD write down the EFM signal, in writing afterwards device, the EFM data that generate with reference to the modulation signal carrying device are write afterwards information at interval record arbitrarily.
The 4th figure illustrates that the of the present invention the 2nd writes afterwards information recording method.
In the modulation signal carrying device 100, information data is carried out the EFM modulation, generate the EFM data, send to and write afterwards device 200.Write afterwards in the device 200, store this EFM data pattern in advance at modulation intelligence storage part 210.From the modulation signal carrying device 100 output EFM signal that generates with the same processing of tradition, generate the former dish 320 of CD.The pit of the recording disk of being made by the former dish of this CD 320 340 is equivalent to the oval represented part of the 4th figure.
Write afterwards the writing afterwards in the control part 220 of device 200,, calculate the zone that the modulation signal of information 420 write afterwards in record with reference to the EFM data pattern that modulation intelligence storage part 210 is preserved.Though calculating the method in zone is arbitrarily,, also select the uncracked zone of restriction condition of the run length of EFM even in the occasion of the modulation signal of having write afterwards information 420.
In the example of the 4th figure, show the interval of tolerance limit bit (3 channel bit), information bit (14 channel bit), tolerance limit bit (3 channel bit), information bit (14 channel bit), and shown the interval that the pattern (000010010001000000) of channel bit repeats.That is what, 4T=0,3T=1,4T=0,6T=1 (T represents 1 channel clock, and 4T=0 represents that 0 is continuously interval at 4T) repeated is interval selected.
Write afterwards by carrying out, the part of 3T=1,4T=0 is altered to 4T=1,3T=0 at the rear side of 3T=1.That is,, form the pit of 4T by on the pit of 3T shown in the ellipse, writing afterwards the represented pit of oblique line.Thereby the EFM signal of information bit=0 is altered to information bit=192 (14 channel bit pattern=01000100100000).This EFM signal of writing afterwards can normally be read in replay device.In the device of playback side, to have inserted at which interval the information of the information of writing afterwards 420 according to whether in, can the acquired information data and write afterwards information 420.
Like this, according to the present invention, can be to writing afterwards information with the CD of traditional format record.
In addition, though do not carry out special processing in modulation signal carrying device 100 sides in the explanation, the related information 410 of writing afterwards that also can in advance record be write afterwards the conditioned disjunction interval etc. of information 420 is set in the modulation signal carrying device 100.Thereby the modulation intelligence generating unit 120 of modulation signal carrying device 100 is to writing afterwards related information 410, that is, when the information data that the interval of writing afterwards is carried out in the back is carried out modulation, the EFM data pattern after can selecting to have considered to write afterwards.Writing afterwards device 200 sides, carry out the processing of writing afterwards of writing afterwards information 420 also according to writing afterwards related information 410.
Then, as above-mentioned, explanation can be carried out the change data and write down the example of the source BFM data pattern of writing afterwards information recording method of the information of writing afterwards.The 5th figure represents to adopt the of the present invention the 2nd other examples of writing afterwards the data of information recording method.
Write afterwards in the device 200, by shining the high laser of exporting, writing down the information of writing afterwards 420 at boss portion formation pit.Wherein, write afterwards device 200 according to such EFM signal data pattern, the high output of the land area irradiation laser of the EFM data interval that the pit areas that forms on the CD 340 and land area are formed is transformed into a pit areas.Among the EFM, because pit areas or land area must be at 3T between the 11T, thereby, the source EFM data pattern that can write down the information of writing afterwards 420 becomes the pit areas of 3T, 4T or 5T, the land area of 3T, 4T or 5T, the arrangement of the pit areas of 3T, 4T or 5T, and pit areas, land area and pit areas and below 11T.In writing afterwards device 200, to the laser of the high output of land area irradiation of the EM data pattern of such arrangement, change EFM data pattern, making all becomes a pit.Specifically, in the source EFM data pattern that can change like this, following 10 patterns are arranged, can rewrite as follows respectively.
(1) the EFM data pattern with 3T pit areas, 3T land area, 3T pit areas is made as the 9T pit.
(2) the EFM data pattern with 4T pit areas, 3T land area, 3T pit areas is made as the 10T pit.
(3) the EFM data pattern with 5T pit areas, 3T land area, 3T pit areas is made as the 11T pit.
(4) the EFM data pattern with 3T pit areas, 4T land area, 3T pit areas is made as the 10T pit.
(5) the EFM data pattern with 4T pit areas, 4T land area, 3T pit areas is made as the 11T pit.
(6) the EFM data pattern with 3T pit areas, 5T land area, 3T pit areas is made as the 11T pit.
(7) the EFM data pattern with 3T pit areas, 3T land area, 4T pit areas is made as the 10T pit.
(8) the EFM data pattern with 4T pit areas, 3T land area, 4T pit areas is made as the 11T pit.
(9) the EFM data pattern with 3T pit areas, 4T land area, 4T pit areas is made as the 11T pit.
(10) the EFM data pattern with 3T pit areas, 3T land area, 5T pit areas is made as the 11T pit.
In the example of the 5th figure,, write afterwards to the land area execution of 3T, form the pit of 10T by writing afterwards device 200 by the part of forming with the land area of ellipse represented 3T pit areas, 3T land area and 4T pit areas.
Then, illustrate that the of the present invention the 3rd writes afterwards information recording method.The 3rd writes afterwards information recording method and the 2nd, and to write afterwards information recording method same, in modulation signal carrying device 100, EFM signal after the generation modulated information data, make CD 340, in writing afterwards device 200, with reference to the EFM data pattern that modulation signal carrying device 100 generates, carry out record according to the information of writing afterwards 420, make mistake take place in the EFM signal of arbitrary intervals.
The 6th figure is that the figure of information recording method is write afterwards in explanation the of the present invention the 3rd.
In the modulation signal carrying device 100, the information data of resetting is carried out the EFM modulation, generate the EFM data pattern, send to and write afterwards device 200.Write afterwards in the device 200, store this EFM data pattern in advance at modulation intelligence storage part 210.From the modulation signal carrying device 100 output EFM signal that generates with the same processing of tradition, generate the former dish 320 of CD.The pit of the CD of being made by the former dish of this CD 320 340 is equivalent to the oval represented part of the 6th figure.Write afterwards the writing afterwards in the control part 220 of device 200, carry out with reference to the EFM data of preserving in the modulation intelligence storage part 210 and write afterwards, to make a mistake in predetermined interval.This interval is arbitrarily, can be continuous interval, also can be the interval that condition is according to the rules selected.
In the example of the 6th figure, because information bit is " 0 ", the result after the EFM modulation, the information bit interval of formation 4T=0,3T=1,4T=0,6T=1.4T=0 in this information bit interval partly writes afterwards, and establishes 1T=0,2T=1,1T=0.That is, on the boss suitable, write afterwards the pit suitable with the 2T=1 shown in the oblique line with 4T=0 between the corresponding respectively pit of 3T=1 and 6T=1.
As mentioned above because EFM is defined as satisfying the condition of Tmin=3T, Tmax=11T, thereby by make anti-phase interval become 1T, 2T, the EFM mistake takes place in 1T.Write afterwards in the control part 220, in predetermined a plurality of intervals, whether 420 misjudgments take place according to the information of writing afterwards, and control writing afterwards.That is, in the replay device, in the interval of certain regulation, detect mistake and whether take place, obtain the information of writing afterwards 420.For example, mistake is 1 when taking place, and is 0 when mistake does not take place, and resets by having or not of mistake and writes afterwards information 420.
In addition, in the explanation, the situation that the EFM mistake takes place has been described, the mistake of any kind of also can take place.For example, also can carry out and write afterwards, make the generation that leads to errors of certain interval error correcting code.Like this, according to the present invention, the CD that writes down with traditional specification also can write down the information of writing afterwards.
Then, illustrate that the of the present invention the 4th writes afterwards information recording method.The 4th writes afterwards in the information recording method, when in modulation signal carrying device 100, carrying out the modulation of information data, generate the EFM signal, with any interval EFM mistake that takes place, make the CD 340 that has write down the EFM signal, in writing afterwards device 200 at the EFM signal, EFM data with reference to 100 generations of modulation signal carrying device, carry out record according to the information of writing afterwards 420, make wrong correct recovery the in any interval, thereby make CD 350.
The 7th figure is that the figure of information recording method is write afterwards in explanation the of the present invention the 4th.
In this recording method, in modulation signal carrying device 100 sides, in modulation signal carrying device 100, preestablish record write afterwards information 420 conditioned disjunction interval etc. write afterwards related information 410.120 pairs of the modulation intelligence generating units of modulation signal carrying device 100 are write afterwards related information 410, that is, and and when the information data in the interval of writing afterwards is carried out modulation, be provided with between the clear area in the part of EFM data and (do not form the interval of pit), simultaneously, generate the EFM data, so that the EFM mistake to take place.In the example of the 7th figure, the interval of 2T=1 is set in the back between the clear area of 8T=0.Generate the EFM signal, so that the EFM mistake to take place.Generate the former dish 320 of CD according to this EFM signal, make CD 340 by the former dish 320 of this CD.In the CD 340, form the pit corresponding with 2T=1.
Write afterwards in the device 200, with reference to writing afterwards related information 410,420 execution are write afterwards according to the information of writing afterwards, to revise the EFM mistake.In the example of the 7th figure, before the pit that forms 2T=1, shown in oblique line, in the interval of 4T, write afterwards pit, 2T=1 is altered to 6T=1.Thereby, revise the EFM mistake.Write afterwards in the control part 220, between a plurality of error-zone that are shaped in advance in, judge whether to revise the EFM mistake according to the information of writing afterwards 420, control writing afterwards.That is, in the replay device of the CD 350 that playback is write afterwards, in the interval of certain regulation, detect the EFM mistake and whether take place, obtain the information of writing afterwards 420.For example, 1 corresponding with the information of writing afterwards when making EFM that mistake is not revised, corresponding during the EFM error correction with 0, obtain the information of writing afterwards 420 by having or not of mistake.
Then, illustrate that the of the present invention the 5th writes afterwards information recording method.
The 5th writes afterwards in the information recording method, generates the EFM signal in modulation signal carrying device 100, makes to produce predetermined specified data in the EFM data of the information data in the regulation interval that is equivalent to be scheduled to, and makes the CD 340 that has write down predetermined data.Write afterwards in the device 200, write afterwards, the data of the arbitrary region of specified data are arranged, make CD 350 with regenerative recording according to the information of writing afterwards 420.
For example, illustrated in the signal format of CD as the 2nd figure, the son coding of a symbol of record in a frame.Concentrate the son coding of 98 frames, form a sub-encoding block.The 8th figure is the structural drawing of sub-encoding block.The data of 8 bits are made as P, Q, R, S, T, U, V, W respectively.Here, for example, by will except the Q channel data of sub-encoding block, all being made as 0 by the channel data from P to W in advance, and only the Q channel data is made as 1 or 0, can writes afterwards information to video disc recording according to the information of writing afterwards.That is, the state that 8 bits from P to W can be by writing afterwards (00000000) and the state of (01000000) are selected.
The 9th figure is that the figure of information recording method is write afterwards in explanation the of the present invention the 5th.
After modulating by modulation signal carrying device 100, preestablish information data, make sub-encoding section become 40h (being (01000000) in the pattern of 8 bits).14 channel bit of the EFM signal corresponding with 40h become (01001000100100), and are corresponding with this 14 channel bit, form pit on CD 340.96 bits of the sub-encoding block of the Q channel data in this stage all become 1.
Write afterwards in the device 200, write afterwards, make any bit of 96 bits of Q channel data become 0 according to the information of writing afterwards 420.Specifically, to the boss illuminating laser beam between the pit of the pit of 3T and tolerance limit bit, form the pit of 6T.EFM data after writing afterwards become (01001000100000).This is 00h under the data conditions of 8 bits.That is, make the Q channel data become 1 from 0 by writing afterwards.Like this, can set 96 bits of Q channel data for data arbitrarily, can write down the information of writing afterwards 420.Especially, can under the situation of the sub-coded data that does not change Q channel other channels in addition, only change the Q channel data.In addition, except be altered to the example of 00h from 40h, also can change to 07h from 47h.
The invention is not restricted to the embodiment of the invention described above etc., in the scope that does not break away from spirit of the present invention, various distortion and application can be arranged.For example, in the above explanation, molding and film forming apparatus and write afterwards device and form respectively also can be installed in molding and film forming apparatus and be write afterwards device.And, can have a plurality of devices of writing afterwards, write afterwards concurrently.In addition, in the above explanation, the laser of writing afterwards recording of information and be by height output forms pit, is caused on the face of CD by the laser of height output the variation of reflectivity during with replay device playback CD, can obtain the replay signal equal with pit.
As described above, in the disc making of the present invention system, the information of writing afterwards of the record of recording disk that can in molding and film forming apparatus, make and the same modulation of form of information data.According to such the present invention, can be to using the record of recording disk that generates with the same optical disc production operation of tradition to write afterwards information.Because the information of writing afterwards is arbitrarily, thereby, for example, can write afterwards identifying information to CD.As a result, can expand the purposes of CD.According to the present invention, the advantage that needn't change existing optical disc production operation is arranged.And, when can and having special circuit in the transformation of no playback machine, the information of writing afterwards do not read, have the advantage of the interchangeability do not damaged.
Claims (2)
1. data record method, in order to making CD media, above-mentioned CD media has formation corresponding to the coverlay that forms on the substrate of the shape of the information data of modulation and the substrate,
No modulating range partly is set,, the information of stipulating of writing afterwards is recorded above-mentioned no modulating range by carrying out record at above-mentioned coverlay.
2. data recording equipment, in order to making CD media, above-mentioned CD media has formation corresponding to the coverlay that forms on the substrate of the shape of the information data of modulation and the substrate,
No modulating range partly is set,, the information of stipulating of writing afterwards is recorded above-mentioned no modulating range by carrying out record at above-mentioned coverlay.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP173781/01 | 2001-06-08 | ||
| JP2001173781 | 2001-06-08 | ||
| JP269100/01 | 2001-09-05 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028115627A Division CN1264145C (en) | 2001-06-08 | 2002-06-03 | Optical disk medium, and data recording method and device |
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| CN1763848A CN1763848A (en) | 2006-04-26 |
| CN100394481C true CN100394481C (en) | 2008-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100895652A Expired - Fee Related CN100394481C (en) | 2001-06-08 | 2002-06-03 | Optical disc medium and data recording method and apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5082404B2 (en) * | 2006-11-22 | 2012-11-28 | ソニー株式会社 | Read-only optical disk medium and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08129828A (en) * | 1994-10-31 | 1996-05-21 | Sony Disc Technol:Kk | Data recording method, data recorder, data reproducing method and data recording medium |
| JPH10233019A (en) * | 1996-01-22 | 1998-09-02 | Matsushita Electric Ind Co Ltd | Optical disk, optical disk manufacturing device and optical disk reproducing device |
| WO2000048190A1 (en) * | 1999-02-10 | 2000-08-17 | Koninklijke Philips Electronics N.V. | Method of storing an identification on a record carrier, device and record carrier |
| EP1058254A2 (en) * | 1999-04-28 | 2000-12-06 | Matsushita Electric Industrial Co., Ltd. | Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system |
| JP2001135021A (en) * | 1999-08-25 | 2001-05-18 | Sony Corp | Data recording medium, data reproducing method and reproducing device as well as data recording method and recording device |
-
2002
- 2002-06-03 CN CNB2005100895652A patent/CN100394481C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08129828A (en) * | 1994-10-31 | 1996-05-21 | Sony Disc Technol:Kk | Data recording method, data recorder, data reproducing method and data recording medium |
| JPH10233019A (en) * | 1996-01-22 | 1998-09-02 | Matsushita Electric Ind Co Ltd | Optical disk, optical disk manufacturing device and optical disk reproducing device |
| WO2000048190A1 (en) * | 1999-02-10 | 2000-08-17 | Koninklijke Philips Electronics N.V. | Method of storing an identification on a record carrier, device and record carrier |
| EP1058254A2 (en) * | 1999-04-28 | 2000-12-06 | Matsushita Electric Industrial Co., Ltd. | Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system |
| JP2001135021A (en) * | 1999-08-25 | 2001-05-18 | Sony Corp | Data recording medium, data reproducing method and reproducing device as well as data recording method and recording device |
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| CN1763848A (en) | 2006-04-26 |
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