CN1947179B - Recording medium, read/write method thereof and read/write apparatus thereof - Google Patents
Recording medium, read/write method thereof and read/write apparatus thereof Download PDFInfo
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- CN1947179B CN1947179B CN2005800127162A CN200580012716A CN1947179B CN 1947179 B CN1947179 B CN 1947179B CN 2005800127162 A CN2005800127162 A CN 2005800127162A CN 200580012716 A CN200580012716 A CN 200580012716A CN 1947179 B CN1947179 B CN 1947179B
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
- G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
- G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
- G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
- G11B2020/1278—Physical format specifications of the record carrier, e.g. compliance with a specific standard, recording density, number of layers, start of data zone or lead-out
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2541—Blu-ray discs; Blue laser DVR discs
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Head (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
A recording medium read/write method and apparatus are disclosed. The inventive method comprises version information. The version information includes a first compatibility version information for deciding a possibility of accessibility to the write and/or read data and a second compatibility version information for deciding a possibility of data write indicated by the first compatibility version information, which records the version information of a corresponding medium as read/write control information within the recording medium. The read/write apparatus efficiently performs the read/write of the recording medium with reference to the version information recorded within the recording medium.
Description
Technical field
The present invention relates to a kind of recording medium and control information recording method thereof, relate in particular to the recording medium read/write method and the equipment of the control information that the read that is associated with the version of corresponding recording medium of record writes down as the method and the use of control information.
Background technology
In general, the CD that can write down mass data in the above is widely used as optical record medium.Wait the video data that can write down and store high definition on it and the novel high-density optical record medium (HD-DVD) of high-quality voice data to make many effort for developing Blu-ray disc (hereafter is BD) for example recently.
A kind of Blu-ray disc (BD) as HD-DVD technology of future generation is to store the optical recording scheme of future generation that obviously surpasses the data of conventional DVD memory capacity.In addition, the technical manual of the global standards of BD just is established.
The various standard proposals relevant with Blu-ray disc have been proposed.Specifically, can rewrite the various standards that afterwards 2 times of speed of Blu-ray disc, write-once Blu-ray disc (BD-R) and read-only Blu-ray disc (BD-ROM) (or more high power speed) can rewrite Blu-ray disc 1 times of speed is worked out.
Do not consider the Blu-ray disc of same train, the version of the certain content of Blu-ray disc is upgrading to keep synchronously with technical development always.For example, the 1 times of speed CD standard that can write Blu-ray disc (BD-RE) and 2 times of speed (or more high power speed) can rewrite the same maintenance expansion of Blu-ray disc (BD-RE) situation.Therefore, the normative content of expansion need be managed as disc version information.
Yet, when reproducing the record of highest version CD, even even read/write be infeasible or when carrying out read/write, make a mistake, according to the also execution of retry read/write always of the read/write device that is applicable to lowest version of the expansion design of CD version, thereby cause system to make mistakes.
Summary of the invention
Therefore, the present invention aims to provide a kind of can avoiding basically because the restriction of prior art and the recording medium and the control information recording method thereof of one or more problems that shortcoming causes.
An object of the present invention is to provide a kind of read that will be associated and be recorded in method in the recording medium directorial area as appointed information with the recording medium version.
Another object of the present invention provides a kind of read/write method and equipment that is suitable for control information when the read/write of executive logging medium.
The part of other advantage of the present invention, purpose and feature will be launched in the explanation of back, and its another part can be understood maybe by reading carefully hereinafter become and can be known from the present invention's practice by those skilled in the art.Purpose of the present invention and other advantage can and be reached by the structure realization that particularly points out in written explanation, its claim and the accompanying drawing.
In order to realize that these purposes are with other advantage and according to the object of the invention, such as herein embodiment and broad description ground, a kind of recording medium, comprise the directorial area that records read in it, wherein control information can comprise that the version information of corresponding recording medium and this version information can comprise and writes compatible version information and read compatible version information.
In the present invention on the other hand, a kind of read/write method of recording medium comprises: the first step of reading the first compatible version information and the second compatible version information from recording medium; And if from the version information of reading judge reading of corresponding recording medium and/or write whether be compatible and corresponding recording medium to write and/or read be compatible, second step of then writing and/or reading, wherein the first compatible version information has precedence over the second compatible version information and is judged.
In the present invention on the other hand, a kind of read/write method of recording medium comprises from recording medium reads the first compatible version information and the second compatible version information, judge the feasibility of corresponding recording medium being visited property from the first compatible version information of reading, whether determine the Visitor Logs medium according to the result of the feasibility of the visit of being judged, if and judge that from the first compatible version information recording medium is addressable, then whether can be written on the corresponding recording medium from the second compatible version information judgment data, and whether determine write data according to the result of corresponding judgement, wherein the second compatible version information has variable value in the particular value of the first compatible version information.
In another aspect of this invention, a kind of read/write method of recording medium comprises the following steps: to read from recording medium and comprises the read of writing compatible version information; From the compatible feasibility of writing that compatible version information is judged corresponding recording medium of writing of reading; Be in bridge compatibility (bridgecompatible) state if write compatibility, then the policy information of writing in the control information of reading judges whether writing of specific speed be feasible; And be that recording medium and this specific speed are write under the compatible situation only, just carry out and write with this specific speed in judged result.
In the present invention on the other hand, a kind of recording medium read/write device comprises: the control module that is used for reading from recording medium the first compatible version information and the second compatible version information, this control module judges that writing of corresponding recording medium is compatible and reads compatible feasibility that from the version information of reading this control module sends based on judged result and reads and/or write order; And according to from control module read and or the write order read/write cell reading and/or write, wherein the first compatible version information is had precedence over the second compatible version information and is judged.
In another aspect of the invention, a kind of recording medium comprises: the directorial area that records read in it, wherein control information can comprise the version information of corresponding recording medium, version information can comprise the first compatible version information and the second compatible version information of writing and/or read compatibility that is used for judgment data, and as long as the first compatible version information is kept, the second compatible version information can be changed.
The detailed description that should be appreciated that the general remark of front of the present invention and back is exemplary and explanat, and is intended to the further explanation that the invention provides for as claimed in claim.
Description of drawings
Be included to provide the present invention is further understood and included and the accompanying drawing that constitutes the application's a part shows all embodiment of the present invention, and be used for explaining principle of the present invention with instructions.In the accompanying drawings:
Fig. 1 is the structure diagram according to single-layer optical disc of the present invention;
Fig. 2 is the structure diagram according to individual layer read-only optical disc of the present invention;
Fig. 3 is the diagram with the directorial area of control information of the present invention, and wherein control information is written into respective area;
Fig. 4 A and Fig. 4 B are the diagrams according to the method for writing control information of first embodiment of the invention;
Fig. 5 is the diagram according to the method for writing control information of second embodiment of the invention;
Fig. 6 A and Fig. 6 B are the diagrams according to the method for writing control information of third embodiment of the invention;
Fig. 7 is the diagram that is applicable to disc read/write equipment of the present invention; And
Fig. 8 and Fig. 9 are the process flow diagrams that is applicable to disc read/write method of the present invention;
Embodiment
Now will be in detail with reference to all preferred embodiments of the present invention, its example is shown in the drawings.In the case of any possible, in institute's drawings attached, will use identical mark to represent same or analogous part.
In addition, though employed term or from present known term, select among the present invention, that some terms are applicants is optional in some cases, and its implication will at length be explained in the explanation of back thus.Therefore, should be not only that the simple title of these terms itself or the meaning are understood the present invention with the expection implication of the selected corresponding term of applicant.
" recording medium " among the present invention comprises the data-recordable media of all kinds, for example CD, tape etc., and no matter its recording medium why.The present invention for convenience of explanation exemplarily lifts Blu-ray disc (BD) and is the example of CD.Yet obvious technical concept of the present invention can be applicable to other recording medium in the same manner.
' control information ' means the various information of the disc read/write that is used for Blu-ray disc, and corresponding to ' optical disc information ' in the given zone that for example is written to Blu-ray disc (BD) or be written to ' physical format information ' among the DVD-RAM/-RW/+RW.To be explained as follows corresponding to ' optical disc information (hereafter is DI) ' of the situation of Blu-ray disc (BD) at first, for simplicity.Yet obvious theory of the present invention is applicable to other CD (for example DVD series) of the different-format that uses with same concepts, same way as.
The present invention relates to write down the method for the read related with disc version information.Explain disc version information earlier, it is as follows with the method as control information that detailed subsequently explanation writes Blu-ray disc with disc version information as " optical disc information (DI) ".
At first, about ' disc version information ', in the explanation of front, mentioning, the CD version is just by redetermination when the information that development has new specification item to be added and the CD author presets relevant corresponding CD with which kind of version according to the optical disc of same train is recorded in the given zone of CD, and the read/write device (shown in Figure 7) that is used for corresponding disc read/write is by this searched the disc version information that writes CD so that carry out read/write.
The invention is characterized in, when disc version information is write down as control information (for example optical disc information (DI)), optical disc information is recorded as the appointed information that between CD and read/write device, can discern mutually.In addition, the invention is characterized in read/write device and the control of the read/write efficiently between the CD that utilizes disc version information to realize that version differs from one another.
Fig. 1 and Fig. 2 illustrate the structure of having used CD of the present invention.
Fig. 1 illustrates the individual layer with a recording layer can write down Blu-ray disc (BD-RE/R).And Fig. 2 illustrates the read-only Blu-ray disc of the individual layer with a recording layer (BD-ROM).
Fig. 1 is the structure diagram that has the single-layer optical disc of a recording layer according to of the present invention, and wherein the optical disc information (DI) of Blu-ray disc (BD) is written into CD as control information.
Consult Fig. 1, on the inner circle area of CD of the present invention, be provided with one and introduce the district, and on the outer collar region of CD, a draw-out area is set as directorial area as directorial area.Specifically, prerecorded area with can rewrite or the write-once zone separated from one another in the inner circle area of CD.Prerecorded area is the zone of recorded data when making CD, and user or system can't carry out data recording at all on prerecorded area thus.Specifically, in Blu-ray disc (BD), prerecorded area is named as PIC (permanent information and control data) district.In addition, as video disc recording etc. must information optical disc information etc. be recorded in the PIC district.Yet optical disc information of the present invention (DI) not necessarily will be present in the PIC district.And obviously optical disc information can be recorded in another directorial area.
In the data field, provide the user data area of real data of recording user and spare area ISA and the OSA that is used to replace the defect area that is produced.Specifically, in such as the directorial area in the write-once CDs such as BD-R, be provided with the TDMA (temporary defect management area) of the information that is used for recording defect and general management.Under the situation that can rewrite BD-RE, need not to keep TDMA as reserved area.
Fig. 2 is the structure diagram that has the individual layer read-only optical disc of a recording layer according to of the present invention, and this figure is used to illustrate the position of the optical disc information DI that writes the present invention.
Under the situation of read-only optical disc, the Zone Full of CD disposes prerecorded zone.Optical disc information DI related to the present invention can be write in the PIC district that introduces in the district, this is identical with the write-once CD shown in Fig. 1.
As Fig. 1 and Fig. 2 illustrated, the present invention aimed to provide a kind of method and record that writes the read that is associated with CD version of the present invention efficiently and is used for the writing speed information of read/write and writes strategy (hereafter is WS) information as the method that is recorded in the optical disc information (DI) of prerecorded zone.In addition, the method that writes optical disc information of the present invention (DI) is explained as follows in detail.
Fig. 3 is the structure diagram in the PIC district in Fig. 1 or the CD shown in Figure 2.
Consult Fig. 3, in Blu-ray disc, ' one bunch ' represents smallest record unit, and 544 are gathered to lump together and constitute a section as a upper strata record unit, and five sections condense together and form the PIC district altogether.
Optical disc information DI is recorded in the starting cluster of first section IF0.Optical disc information DI is write by plural number with regard to each recording layer and the speed that corresponding CD allowed inferiorly, and an optical disc information DI can comprise 112 bytes.Specifically, above-mentioned optical disc information is called as optical disc information (DI) frame sometimes.In addition, the identical content of optical disc information DI is repeatedly recorded in each starting cluster of all the other sections, can deal with losing of optical disc information DI thus.
Specifically, in CD-R shown in Figure 1, represent the information of respective record layer and writing speed and write strategy (WS) information corresponding to be recorded among each optical disc information DI of CD-R with disc version information with recording layer and speed.Therefore, this information is used to the read/write of corresponding CD, allows read/write efficiently thus.
Yet,, be used for the speed information of video disc recording and write strategy (WS) information and will can not be included in optical disc information DI owing to can't on read-only optical disc as shown in Figure 2, carry out write operation.
Below in conjunction with Fig. 4 A-Fig. 8, the method for the record according to the present invention read related with the CD version is carried out following detailed description by each embodiment.For ease of explanation, be example with the CD-R.Yet as what mentioned in the explanation of front, this method is applicable to read-only optical disc in the same manner.
Fig. 4 A and Fig. 4 B illustrate according to a kind of of first embodiment of the invention optical disc information (DI) are write the method for CD as control information, and the zone that wherein is used to write down read is distributed separately.
That is, in CD, be provided with the zone that is used to write down at least one optical disc information DI in it, and decide the order of each optical disc information DI according to the sequence number of the byte records of usefulness of each optical disc information DI.For example, corresponding information is recorded in the 5th byte place among the optical disc information DI, is named as " the DI number of frames in the DI piece ", and by ' 00h, 01h, 02h ... ' simple expression.That is, if the information of the 5th byte is ' 00h ', then it represents first optical disc information.If the information of the 5th byte is " 03h ", it represents the 4th optical disc information.
Strategy (WS) information of being represented by corresponding CD information D I of writing that cooperatively interacts with writing speed is recorded in the zone by ' write strategy parameters ' field by name of (L～111) byte representation of optical disc information DI, and read is recorded in the zone by ' read/write operation control ' field by name of N byte representation as optical disc information DI.
' read/write operation control ' field is divided into two parts, and wherein ' but record version this shop ' is recorded in preceding four, and then four for being assigned with as the zone that wherein is used for record ' reading compatibility type number '.
Below " read/write operation control " field is elaborated.
At first, ' but the record version this shop ' in utilization ' read/write operation control ' field represents this information of key plate of corresponding CD.For example.If CD is corresponding to version 1.xx (V1.xx), then it is represented as ' version number=0001 '.If CD is corresponding to version .xx (V2.xx), then it is represented as ' version number=0010 '.In addition, if CD corresponding to version 3 .xx (V3.xx), then it is represented as ' version number=0011 '.
Therefore, ' CD of the higher-version of version number=0010 ' (V2.xx) will be loaded in the read/write device than lowest version (V1.xx), then should should be at the enterprising line item of the CD of the higher-version that is loaded than the read/write device of lowest version if will be written as.Therefore, under the situation that has loaded higher-version disc, read/write device confirms to write on the corresponding disc version information in ' but recording version information (version number) ' field in institute's loaded disc, thereby do not carry out the accessing operation that on corresponding CD, writes, notify the corresponding CD such as user can not record immediately and be in response to this.
That is, only when having when writing the CD that can allow version and being loaded, this read/write device just is allowed to carry out on corresponding CD and writes.In addition, this equipment reads corresponding control information from optical disc information DI.
In addition, as the information that indicates whether to allow to reproduce, the meaning of ' reading compatibility type number ' in ' read/write operation control ' field is to be under an embargo than the reproduction that read/write device has a CD of higher ' reading compatibility type number '.Therefore, this read/write device confirms to write on the corresponding disc version information in ' reading compatibility type number ' field in institute's loaded disc, thereby do not carry out the accessing operation that on corresponding CD, writes, notify corresponding CD such as user not readable immediately and be in response to this.
It is good especially that ' reading compatibility type number ' has following constraint condition.That is, but in identical recording version information (version number), the value of ' reading compatibility type number ' is constant, promptly keeps identical.For example, but this means that ' reading compatibility type number ' of each CD do not allow to have different value ' 0001 ' or ' 0010 ' in the identical recording version information at indication version 3 .xx (' version number=0011 ').
In other words, become ' 0001 ' or ' 0010 ' if read compatibility information (reading compatibility type number), then version information can by get the value of reading compatibility information (reading compatibility type number) as with reference to representing to indicate version 3 .xx (V3.xx, x:0～9) but identical record version this shop (' version number=0011 ').That is, when design compatibility (backwards compatibility of more specifically saying so), should before version information, preferentially judge and read compatibility information (reading compatibility type number).Read the compatibility information value as long as keep in addition, the version information value can be changed.
Be elaborated to judging compatible method below in conjunction with Fig. 8 or Fig. 9.
Fig. 4 B is used for ' reading compatibility type number ' among the identical embodiment of further key drawing 4A.
That is, in Fig. 4 A, but under the situation of recording version information (version number) corresponding to ' 0001 ' (V1.xx) or ' 0010 ' (V2.xx), identical to read compatibility information (reading compatibility type number=0000) applicable.Yet in Fig. 4 B, but under the situation of recording version information (version number), read compatibility information (reading compatibility type number=0000) and read compatibility information (reading compatibility type number=0001) applicable respectively corresponding to ' 0001 ' (V1.xx) or ' 0010 ' (V2.xx).
Yet, shown in Fig. 4 A or Fig. 4 B, but recording version information (version number) only by higher-version information (V1.xx, V2.xx, V3.xx ...) expression, and under the situation that only realizes writing down with this information, will produce the confusion under a kind of ' bridge can compatible state '.
Promptly, be 1 times of speed/2 times speed recording standard and be used to support that the standard of 4 times of new fast standards can't satisfy under the situation of whole 1 times of speed～4 times speed at version 1.1 (V1.1), ' bridge can compatible state ' be meant by regulation version 2 .0 (V2.0) be 2 times of speed/4 times speed and make 2 times of speed and version 1.1 (V1.1) operating such to allow 2 times of speed be incompatible standard for the compatible 1 times of speed of part.
Therefore, under " bridge can compatible state ", it can not be judged as fully " write and forbid ", but but make the compatible part record of part.For this reason, read compatibility if keep when the design read/write device, then this read/write device reproduces the record condition (for example write strategy, write strategy parameters etc.) of optical disc information (DI) to read every kind of speed, and judges whether to allow to carry out write operation with this speed.This will be elaborated in conjunction with Fig. 8 in the back.
Fig. 5 is according to the diagram as the method for control information of the optical disc information that writes CD (DI) of second embodiment of the invention, and the zone that wherein is used for writing down read is within it distributed separately.
Consult Fig. 5, at least one optical disc information DI is recorded in the CD, and decides its order according to the sequence number of the byte records of usefulness of each optical disc information DI.For example, corresponding information is recorded in the 5th byte place among the optical disc information DI, is named as ' the DI number of frames in the DI piece ' field, and by " 00h, 01h, 02h ... " simple expression.That is, if the information of the 5th byte is ' 00h ', then it represents first optical disc information DI.If the 5th byte is ' 03h ', then it represents the 4th optical disc information.
L～111 byte among the optical disc information DI is named as ' write strategy parameters ' field.In addition, strategy (WS) information of being represented by corresponding CD information D I of writing that cooperatively interacts with writing speed is recorded in ' write strategy parameters ' field.The N byte is named as ' disc version number (writing compatibility) ' field, and the control information of writing of read of the present invention is recorded in ' disc version number (writing compatibility) ' field.In addition, (N+1) byte is named as ' reading compatibility type number ' field, and the control information of reading of read of the present invention is recorded in ' reading compatibility type number ' field.
That is, and compare according to the first embodiment of the present invention (Fig. 4 A, Fig. 4 B), according to a second embodiment of the present invention (Fig. 5) expanded ' disc version number (writing compatibility) ' field with indication than lowest version and higher-version.
' disc version number (writing compatibility) ' field is divided into two parts, and wherein ' higher-version information (first version information) ' is recorded in preceding four, and ' than lowest version information (second version information) ' is recorded in back four.
Under the situation of version 1.0 (V1.0), ' disc version number ' (writing compatibility) field is set to ' 0,001 0000 '.Under the situation of version 1.1 (V1.1), ' disc version number (writing compatibility) ' field is changed to ' 0,001 0001 '.Under the situation of version 3 .1 (V3.1), ' disc version number ' (writing compatibility) field is changed to ' 0,011 0001 '.
Can correctly indicate the CD version by top definition.Judge that at the reference version information when writing feasibility, read/write device can improve its reliability in addition.
Yet in the second embodiment of the present invention and first embodiment, it is good especially that ' reading compatibility type number ' field has above-mentioned constraint condition.
That is, under the similar situation of the higher-version information (version number) that can write down version, the value of ' reading compatibility type number ' is constant, promptly keeps identical.
Fig. 6 A illustrates the method as control information according to the optical disc information DI of a kind of recording disk of third embodiment of the invention, and the zone that wherein is used for writing down the read that is associated with disc version information keeps can writing down the compatibility of optical disc information (DI) recording method of Blu-ray disc (BD-RE) with 1 times of speed of current discussion.
Consult Fig. 6 A, the 11st byte of optical disc information DI is named as ' disc size/version ' field, is used for recording disk dimension information and version information in it.' dimension information ' is recorded among front two b7 and the b6, and ' reading compatibility type number ' is recorded among middle two b5 and the b4, and ' but recording version information (version number (writing compatibility)) ' is recorded among back four b3-b0.
The Blu-ray disc of current discussion (BD) only has the size of 12cm.Therefore, if disc size information corresponding to ' 00b ', then it the expression 12cm situation.In addition, after remaining gives over to the reserved-range of the disc size (for example 8cm) of adding as standard.
If the 11st byte is set to ' 00 00 0001b ', then its expression disc size be 12cm, ' reading compatibility type number ' is ' 00 ', but and recording version information (version number) be ' 0001 '.
In the third embodiment of the present invention (Fig. 6), but read compatible information (reading compatibility type number) but have the constraint condition that in identical recording version information (version number), has identical value.In order to solve the problem of ' bridge can compatible state ', when the design read/write device, should judge final recordable feasibility with reference to out of Memory (for example speed information etc.).
Fig. 6 B illustrates the modified example of Fig. 6 A.Wherein field name is partly changed.That is, the compatibility information (reading compatibility type number) of reading among Fig. 6 A changes ' reading compatible version information (reading compatible version number) ' into, and ' but writing compatible version information (version number) ' changes ' but writing compatible version information (but writing compliant Version this shop) ' into.
Therefore, obviously top modification can develop into various name modifications.For example, ' reading compatibility information (reading compatibility type number) ' among Fig. 6 A changed into ' category information (class) ' simply, and ' but writing compatible version information (version number) ' changed into ' version information (version) '.In this case, ' category information (class) ' becomes the information that compatible light dish version is read in indication, and ' version information (version) ' becomes the information that compatible light dish version is write in indication.
Fig. 7 is the diagram that is applicable to the read/write device of CD of the present invention.
Consult Fig. 7, comprise applicable to the read/write device of CD of the present invention being used to the control module 20 carrying out the read/write cell 10 of disc read/write and be used to control read/write cell 10.Control module 20 provides the order that reads or writes to the specific region, and read/write cell 10 is according to the command execution of control module 20 read/write to this specific region.
Specifically, read/write cell 10 comprises: interface unit 12 is used for and the external device (ED) executive communication; Pickup unit 11 is used for directly write data or reading of data on CD; Data processor 13 is used for receiving read signals from pickup unit 11, reverting to the desired signal value, or modulates so that transmit and will be recorded into and will be written to the signal of the signal on the CD; Servo unit 14, be used for from CD correctly read output signal or control pickup unit 11 signal correctly is recorded in CD; Storer 15 is used for temporal data and the various information that comprise management information; And microcomputer 16, be responsible for the said units in the control read/write cell 10.
Except that read/write device, a display device 30 also can be provided, be used to show the signal of reading via read/write cell 10, or provide information to the final user via control module 20.
Fig. 8 and Fig. 9 are respectively the process flow diagram that is applicable to disc read/write method of the present invention.Fig. 8 relates to earlier and writes compatible the existence or non-existent affirmation, and Fig. 9 relate to confirm to read compatible exist or do not exist finish the back to writing the existence or the non-existent affirmation of compatibility.
Consult Fig. 8, in case CD is loaded in the read/write device, all management information just are read out and are temporarily stored in the storer 15 of read/write cell 10 in the CD.In addition, utilize management information that CD is carried out read/write.Specifically, the management information that is stored in the storer 15 comprises read of the present invention.For example, provide read as optical disc information (DI).After this, microcomputer 16 judges that in the following manner read/write compatibility exists or do not exist.
The disc read/write control information of specifically, reading can be the information that has as various titles illustrated among the present invention first to the 3rd embodiment.From various information, whether the CD of the current loading of decidable is recordable (S11).
Specifically, in step S11, carry out recordable situation and whether be in the inspection (S30) of ' bridge can compatible state ' and write compatibility determination (S20).
Therefore, be can not record if in step S11, judge CD, then read/write device is forbidden further record (S40).If read feasible situation, then only on corresponding CD, carry out and read from reading compatibility information (reading compatibility) judgement.
In addition, be that CD-R and it are not in ' bridge can be compatible ' state if in step S11, judge CD, then this is corresponding to the situation that allows normal recordings.Therefore, read/write device can write down (S80) with reference to the policy information (writing strategy, write strategy parameters etc.) of writing in the optical disc information (DI).
In addition, be that CD-R and it are in ' bridge can be compatible ' state if in step S11, judge CD, then read/write device confirms from reading compatible information (reading can be compatible) whether it is in that read can compatible state (S50).Reading to judge the Writing condition of every kind of speed in the optical disc information (DI) under the compatible situation, write compatible feasibility (S60, S70) under the corresponding speed thereby redefine.
According to the result of step S70, if judge that it is feasible writing compatible, then read/write device is carried out and is normally write.Be judged as infeasible (S40) if write compatibility, then the read/write device forbidden data write access, prevent thus may because CD make mistakes or write the system that attempts and cause unusually and make mistakes.
Consult Fig. 9, in case CD is loaded into read/write device, all management information in the CD just are read out and are temporary in the storer 15 of read/write cell 10.In addition, utilize management information to carry out the read/write of CD (S110).Specifically, the management information that is stored in the storer 15 comprises read of the present invention.Specifically, provide read as optical disc information (DI).After this, microcomputer is judged the existence of read/write compatibility in the following manner or is not existed.
At first, ' but the reading compatible information (reading compatibility) ' in the middle of the control information of reading checked whether read feasible (S120) of corresponding CD.If read infeasiblely, then forbid the visit of the data field in institute's loaded disc and forbid writing (S121).
If in step S120, read compatible feasible, then whether feasible from writing of the central corresponding CD of ' but writing compatible information (writing compatibility) ' inspection of the control information (S130) of reading.
Specifically, in step S130, but should judge whether write compatible case is in ' bridge can compatible ' state (S132), judge separately then that if necessary whether write can compatible (S131).
Therefore, not to write compatiblely if in step S31, judge CD, then this read/write device is forbidden further writing, and only allows to read (S140).
If in step S131 CD be judged as write compatible, and judge that at step S132 but write compatible case is not to be in ' bridge can be compatible ' state, then this read/write device judge with reference in the optical disc information (DI) to write that policy information (for example writing strategy, write strategy parameters etc.) and so on normally writes be normally to write compatible (S170).
If CD is judged as that write can be compatible in step S131, but and in step S132, write compatible case and be in ' bridge can compatible ' state, then read/write device is write state (S150) to every kind of speed inspection in the optical disc information (DI), and judges once more whether the compatibility of writing under the corresponding speed is feasible (S160).
According to the result of step S160, compatible feasible if judgement is write, then read/write device normally writes (S170) with reference to the policy information execution of writing among the corresponding DI.If judge and to write compatible infeasiblely that then read/write device is forbidden writing and only allowed to read (S140) on CD.
Therefore, can be convenient to this read/write device and confirm the feasibility of writing and/or reading of corresponding CD, prevent thus and may make mistakes by the system that unusual Writing/Reading is attempted causing from the read of institute's loaded disc.
And if normally write and/or read infeasible information from what microcomputer 16 received indication institute loaded disc, then if necessary, control module 20 is write and/or to read infeasible assert message good especially to user notification one indication via display device 30.
Industrial applicibility
For those skilled in that art, obviously can make various changes and modifications and can not break away from the spirit or scope of the present invention the present invention. Therefore, the present invention is intended to cover the modifications and variations of the present invention that drop in claims and the equivalence techniques scheme scope thereof.
Claims (27)
1. the device of a read/write data on recording medium comprises:
Light picker is configured to read the control information that comprises version information;
Storer is configured to store the control information of reading from light picker; And
Controller, be connected with storer with light picker and be configured to from storer read version information and according to the version information that reads determine whether may be on recording medium the write or read data,
Wherein said version information comprise the visit that is used to judge read data feasibility the first compatible version information and be used to judge the second compatible version information in the feasibility that writes by the data in the version of the described first compatible version information indication.
2. device as claimed in claim 1 is characterized in that, described controller is configured to control light picker and reads in the version information that has the first and second compatible version informations in the byte information.
3. device as claimed in claim 1 is characterized in that, the value of the described first compatible version information was increased when being set to the recording medium of redaction and before versions of recording media was incompatible.
4. device as claimed in claim 1 is characterized in that described controller is configured to read the dimension information in the control information, and described dimension information is used to represent the size of recording medium.
5. device as claimed in claim 4 is characterized in that, described dimension information represents that the diameter of recording medium is 12cm.
6. device as claimed in claim 1 is characterized in that, described recording medium is one of read-only optical disc, CD-RW and write-once CD.
7. device as claimed in claim 1 is characterized in that, described control information also comprises the policy information of writing of writing strategy that is used to represent the speed information of writing speed and is used to represent write described data.
8. device as claimed in claim 7 is characterized in that, described control information comprises and described writing speed or the described sequence number of writing the control information collection that policy information is associated.
9. device as claimed in claim 1 is characterized in that, the directorial area that is used to write down the described first compatible version information and the described second compatible version information is a prerecorded area.
10. device as claimed in claim 9 is characterized in that also comprising the servo unit that links to each other with light picker, is configured to control the servo operation of light picker.
11. a recording medium read/write method comprises:
Read the first step of version information from described recording medium, wherein said version information comprise the visit that is used to judge read data feasibility the first compatible version information and be used to judge the second compatible version information in the feasibility that writes by the data in the version of the described first compatible version information indication; And
Judge second step that on corresponding recording medium write or read data are whether feasible according to described version information,
The wherein said first compatible version information has precedence over the described second compatible version information and is judged.
12. read/write method as claimed in claim 11 is characterized in that, described first step comprises the dimension information of reading expression corresponding recording medium size from recording medium.
13. read/write method as claimed in claim 12 is characterized in that, described second step comprises:
Judge first substep that whether feasible light picker to the visit of corresponding recording medium according to the described first compatible version information; And
If the judged result in first substep is for being feasible to the visit of corresponding recording medium, second substep of the feasibility that writes based on the described second compatible version information judgment data then.
14. read/write method as claimed in claim 13, it is characterized in that, also comprise if in the second substep step, judge that based on the described second compatible version information it is infeasible that described data write, then judge whether to satisfy the third step of specific Writing condition based on the control information of regulation, if wherein in described third step, satisfy described specific Writing condition, then carry out described data and write.
15. read/write method as claimed in claim 14 is characterized in that, described control information comprises write strategy parameters information.
16. method as claimed in claim 12 is characterized in that, described dimension information, the first compatible version information and the second compatible version information are recorded in the byte information.
17. method as claimed in claim 16 is characterized in that, described dimension information, the first compatible version information and the second compatible version information are respectively by 2,2 in the described byte information and 4 bit representations.
18. a recording medium read/write device comprises:
Light picker; Be configured to write or read data on described recording medium;
Control module, be connected with described light picker, be configured to control described light picker and read version information from recording medium, described version information comprises the first compatible version information and the second compatible version information, and it is whether feasible according to version information judgement write or read data on described recording medium of reading
The wherein said first compatible version information is used to judge that the feasibility and the second compatible version information of the visit of read data are used to judge the feasibility that writes by the data in the version of the described first compatible version information indication.
19. equipment as claimed in claim 18 is characterized in that, if the result of described judgement is infeasible for read or write data on described recording medium, and the infeasible control signal of the then described control module output described read/write compatibility of indication.
20. equipment as claimed in claim 18, it is characterized in that, described control module is configured to judge according to the described first compatible version information whether light picker is feasible to the visit of corresponding recording medium, if and be feasible to the visit of recording medium, then judge according to the described second compatible version information whether write data on recording medium feasible.
21. equipment as claimed in claim 20 is characterized in that, the value of the first compatible version information was increased when being set to the recording medium of redaction and before versions of recording media was incompatible.
22. equipment as claimed in claim 21 is characterized in that, described control information also comprises the speed information of representing writing speed and represents the policy information of writing of writing strategy of write data.
23. equipment as claimed in claim 22 is characterized in that, described control information comprises and described writing speed or the described sequence number of writing the control information collection that policy information is associated.
24. equipment as claimed in claim 20 is characterized in that, described control module is configured to control light picker and writes data according to the write strategy parameters that is included in the predetermined control information on recording medium.
25. equipment as claimed in claim 18 is characterized in that, described control module is configured to also read the dimension information of expression recording medium size.
26. equipment as claimed in claim 25 is characterized in that, described dimension information, the first compatible version information and the second compatible version information are recorded in the byte information.
27. equipment as claimed in claim 26 is characterized in that, described dimension information, the first compatible version information and the second compatible version information are respectively by 2,2 in the described byte information and 4 bit representations.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
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| KR20040034022 | 2004-05-13 | ||
| KR10-2004-0034022 | 2004-05-13 | ||
| KR1020040034022 | 2004-05-13 | ||
| KR10-2005-0039933 | 2005-05-13 | ||
| KR1020050039933A KR101119102B1 (en) | 2004-05-13 | 2005-05-13 | Recording medium, read/write method thereof and read/write apparatus thereof |
| KR1020050039933 | 2005-05-13 | ||
| PCT/KR2005/001403 WO2005109999A2 (en) | 2004-05-13 | 2005-05-13 | Recording medium, read/write method thereof and read/write apparatus thereof |
Publications (2)
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| CN1947179A CN1947179A (en) | 2007-04-11 |
| CN1947179B true CN1947179B (en) | 2011-05-11 |
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| CN2005800127162A Active CN1947179B (en) | 2004-05-13 | 2005-05-13 | Recording medium, read/write method thereof and read/write apparatus thereof |
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| JP (1) | JP4841547B2 (en) |
| KR (1) | KR101119102B1 (en) |
| CN (1) | CN1947179B (en) |
| ES (2) | ES2547411T3 (en) |
| HU (2) | HUE027623T2 (en) |
| MY (1) | MY144652A (en) |
| TW (1) | TWI374438B (en) |
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| WO2003100775A1 (en) * | 2002-05-29 | 2003-12-04 | Pioneer Corporation | Information storage medium, information recording device and method, information recording control program, and recording medium containing the information recording control program |
| WO2004013845A1 (en) * | 2002-08-03 | 2004-02-12 | Samsung Electronics Co., Ltd. | Information storage medium and method of recording and/or reproducing with respect to the medium |
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| US7046605B1 (en) * | 2000-06-28 | 2006-05-16 | Samsung Electronics Co., Ltd. | Recording medium for storing version information for maintaining recording and/or reproducing compatibility, and method and apparatus for managing the same |
| JP2002074855A (en) | 2000-09-04 | 2002-03-15 | Sony Corp | Disk shaped recording medium and disk driving device |
| JP2002124038A (en) * | 2000-10-13 | 2002-04-26 | Toshiba Corp | Optical disk and optical disk unit |
| EP1293981A1 (en) * | 2001-09-18 | 2003-03-19 | Deutsche Thomson-Brandt Gmbh | Method for processing information parts of recorded data |
| CA2478533C (en) * | 2002-03-05 | 2013-02-05 | Koninklijke Philips Electronics N.V. | Device, record carrier and method for recording information |
| KR100727918B1 (en) * | 2002-08-03 | 2007-06-14 | 삼성전자주식회사 | Information storage medium and recording and/or reproducing method thereof |
| KR100750109B1 (en) * | 2003-02-15 | 2007-08-21 | 삼성전자주식회사 | Information storage medium |
| KR20040081904A (en) * | 2003-03-17 | 2004-09-23 | 삼성전자주식회사 | Information storage medium and method for recording and/or reproducing data on/from the same |
| JP4212456B2 (en) * | 2003-11-18 | 2009-01-21 | 株式会社東芝 | Optical disc, optical disc apparatus and reproducing method |
| JP2006031907A (en) * | 2004-04-08 | 2006-02-02 | Mitsubishi Electric Corp | Optical disk and optical disk driving apparatus |
| US8248901B2 (en) * | 2004-04-17 | 2012-08-21 | Samsung Electronics Co., Ltd. | Information recording medium, apparatus for recording and/or reproducing data on and/or from information recording medium, method of recording and/or reproducing data on and/or from information recording medium, and computer-readable recording medium storing program for executing the method |
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2005
- 2005-05-13 ES ES10184078.3T patent/ES2547411T3/en active Active
- 2005-05-13 CN CN2005800127162A patent/CN1947179B/en active Active
- 2005-05-13 ES ES05744869.8T patent/ES2527098T3/en active Active
- 2005-05-13 KR KR1020050039933A patent/KR101119102B1/en not_active IP Right Cessation
- 2005-05-13 HU HUE10184078A patent/HUE027623T2/en unknown
- 2005-05-13 HU HUE05744869A patent/HUE024505T2/en unknown
- 2005-05-13 MY MYPI20052161A patent/MY144652A/en unknown
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003100775A1 (en) * | 2002-05-29 | 2003-12-04 | Pioneer Corporation | Information storage medium, information recording device and method, information recording control program, and recording medium containing the information recording control program |
| WO2004013845A1 (en) * | 2002-08-03 | 2004-02-12 | Samsung Electronics Co., Ltd. | Information storage medium and method of recording and/or reproducing with respect to the medium |
Also Published As
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| JP2008507066A (en) | 2008-03-06 |
| JP4841547B2 (en) | 2011-12-21 |
| HUE027623T2 (en) | 2016-10-28 |
| ES2547411T3 (en) | 2015-10-06 |
| TW200540834A (en) | 2005-12-16 |
| MY144652A (en) | 2011-10-31 |
| KR20060047846A (en) | 2006-05-18 |
| TWI374438B (en) | 2012-10-11 |
| ES2527098T3 (en) | 2015-01-20 |
| KR101119102B1 (en) | 2012-03-19 |
| HUE024505T2 (en) | 2016-01-28 |
| CN1947179A (en) | 2007-04-11 |
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Application publication date: 20070411 Assignee: Guangzhou Panyu Juda Car Audio Equipment Co., Ltd. Assignor: Blue light United Co., Ltd. Contract record no.: 2014990000233 Denomination of invention: Recording medium, read/write method thereof and read/write apparatus thereof Granted publication date: 20110511 License type: Common License Record date: 20140422 Application publication date: 20070411 Assignee: China Hualu Group Ltd. Assignor: Blue light United Co., Ltd. Contract record no.: 2014990000238 Denomination of invention: Recording medium, read/write method thereof and read/write apparatus thereof Granted publication date: 20110511 License type: Common License Record date: 20140423 Application publication date: 20070411 Assignee: TCL Kone Electronics (Huizhou) Ltd. Assignor: Blue light United Co., Ltd. Contract record no.: 2014990000240 Denomination of invention: Recording medium, read/write method thereof and read/write apparatus thereof Granted publication date: 20110511 License type: Common License Record date: 20140423 Application publication date: 20070411 Assignee: Shenzhen Maxmade Technology Co.,Ltd. Assignor: Blue light United Co., Ltd. Contract record no.: 2014990000239 Denomination of invention: Recording medium, read/write method thereof and read/write apparatus thereof Granted publication date: 20110511 License type: Common License Record date: 20140423 Application publication date: 20070411 Assignee: Guangdong OPPO Mobile Communications Co., Ltd. Assignor: Blue light United Co., Ltd. Contract record no.: 2014990000237 Denomination of invention: Recording medium, read/write method thereof and read/write apparatus thereof Granted publication date: 20110511 License type: Common License Record date: 20140423 |
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Application publication date: 20070411 Assignee: Dongguan de video technology Co. Ltd. Kit Assignor: Blue light United Co., Ltd. Contract record no.: 2016990000233 Denomination of invention: Recording medium, read/write method thereof and read/write apparatus thereof Granted publication date: 20110511 License type: Common License Record date: 20160614 |
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