CN1992044B - Method for improving high-speed scanning velocity of optical recording media - Google Patents
Method for improving high-speed scanning velocity of optical recording media Download PDFInfo
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- CN1992044B CN1992044B CN200510112460A CN200510112460A CN1992044B CN 1992044 B CN1992044 B CN 1992044B CN 200510112460 A CN200510112460 A CN 200510112460A CN 200510112460 A CN200510112460 A CN 200510112460A CN 1992044 B CN1992044 B CN 1992044B
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Abstract
The invention relates to high-speed scanning speed improving method of optical recording media that comprises steps as following: (a) step of user running the data storing command stored in the optical recording media; (b) step of judging said data which gains the user reading command is in open time section or closed time section; (c) if said data is in open time section, the kind of relative optical recording media is recognized, said open time section is recognized in definite filed of the optical recording media; (d) step of reading relative data with high-frequency mode based on said opentime section recognized. The invention can gain disc data by high-frequency address, so the responding speed can be decreased, the problem of image cutting when the optical recording media scans quickly can be avoided.
Description
Technical field
The present invention relates to the method for improving high-speed scanning velocity of optical recording media, relate in particular to and make optical recording media quickening broadcast response speed, the method for improving high-speed scanning velocity of the optical recording media of the picture cutting phenomenon that takes place when preventing the scanning of high power speed.
Background technology
Recently, PC (PC) can provide AV (audiovisual) information such as music and portrait along with the raising of its function.Because of these AV quantity of information are quite big, as carrier, the CD of CD-R (Compact Disc-Recordable) and DVD+R (Digital Versatile Disc+Recordable) and so on receives much attention.Because of falling of CD price, as information play apparatus, optical disc apparatus is extensive use of with one of peripheral equipment of PC.
As the file system of the recordable carrier that utilizes CD-R and DVD+R and so on, unified disk format (UDF:Universal Disc Format) specification is arranged.UDF is used for diversified equipment, is the file system of utilizing the record format with each apparatus characteristic.Especially concerning CD-R and DVD+R, can not carry out the optical disc write once (write-once disc) that data cover (overwrite) because of belonging to, adopt the UDF line by line of Zhou Yici service data record in the CD.
UDF should be scheduled to the 1st magnetic track in order to keep interchangeability with ISO9660 line by line, and increases the data of customer requirements can for the 2nd magnetic track, carries out additional record.That is, a time period is divided into a plurality of record units-magnetic track, the multiple track register system of service data record obtains utilizing.
For UDF line by line, under above-mentioned recording status,, only can play at information recording/reproducing apapratus because of there being the field of not writing down in the time period, can not use the information play apparatus of CD-ROM drive or DVD-ROM driver and so on to play.But the filesystem information of record data is recorded in the 1st magnetic track (in order to keep the interchangeability with ISO9660, log file information), and record imports (Lead-In)/derive (Lead-Out) to close (Close), makes CD-ROM drive or the DVD-ROM driver can played data with this.In order to move the additional record (further write) of such time period data on the dish of closing, CD-R or DVD-R use segment record system of many time.CD-R is restricted to the lesser amt of 99 magnetic tracks because of its maximum track number, and irrelevant with the time hop count, the magnetic track information that exists on the whole dish is recorded in the field that is called program storage district (PMA:Program MemoryArea), and can manage all magnetic track informations.So CD-R will be recorded in from the magnetic track information that PMA obtains in the internal memory of drive assembly, can directly report the magnetic track information of customer requirements with this.
In addition, DVD+R allows the record of maximum 191 time periods in its record field.Each time period can be write down 16 magnetic tracks (being called fragment on the DVD+R) at most.That is, can there be maximum 3056 (=191*16) big fragments of individual distance in DVD+R.In addition, DVD+R is called introduction (Intro) with the importing of the 2nd time period (final time section), the derivation before the final time period is called closes (Closure).The fragment relevant information (segments, fragment start address, fragment final address etc. are hereinafter referred to as frag info) of each time period is recorded in its time period imports the management information field that is called time period dish controll block (SDCB:session disc control block) of record in (or introduction) district.SDCB not only comprises all frag infos of its time period, also comprises relevant information (segments, fragment start address, fragment termination address etc.) of its time period all time periods before.
That is, the DVD CD of DVD+R and DVD+RW and so on has the CD controll block (DCB:disc control block) of expression record status, and prepares to have the means to user report DCB information.The DCB that all time period information that exist on the CD, the SDBC that comprises all frag infos that exist in its time period and so on are arranged on the DVD+R as mentioned above.In addition, DVD+RW has the formatting optical disc controll block (FDCB:formatting disc control block) that comprises information such as form state.Because of DVD+RW can cover record,, cover record FDCB and upgrade if its form state changes.Simultaneously,, when appending time period or fragment, upgrade SDCB at every turn, be recorded in certain new SDCB field because of DVD+R is the optical disc write once (write-once disc) that can not cover record.But utilize the epigyny device (as PC) of this optical disc apparatus, play before the CD, need management information sometimes the video disc recording data.Therefore, can require to comprise time period relevant information (the time hop count that comprises in the record field etc. on the CD, hereinafter referred to as time period information) and the magnetic track relevant information (track address of the track number that comprises in the magnetic track field, expression track location etc., hereinafter referred to as magnetic track information) in interior management information, constitute its epigyny device.
Corresponding therewith, concerning optical disc apparatus, be that DVD+R is an example as CD, the magnetic track information requirement of response epigyny device reports to epigyny device with above-mentioned frag info.In addition, CD is that CD-R is an example, and optical disc apparatus is based on the magnetic track information of above-mentioned PMA (program storage district) record, obtains the answer that the magnetic track information to epigyny device requires.
Fig. 1 a and Fig. 1 b are the player method synoptic diagram of existing shut-in time section and open hour section.
As shown in Figure 1a, be example with the shut-in time section, scan with high frequency mode, the rotational speed of optical disc recording medium is also carried out the constant angular velocity rotation.But shown in Fig. 1 b, the open hour section is an example, because of before the information that is in time period record do not produce, plays with jitter mode.The rotational speed of optical recording media is carried out the Constant Linear Velocity rotation, and is therefore slow than the speed of playing the shut-in time section.Fig. 2 shows the precedence diagram of the player method of existing time period.
As shown in the figure: first reading command, the program of decoding then when the time period of customer requirements data closes or when open, with reference to the control field, is the shake field in section detection time and the process in high frequency field.
DVD recorder with play with equipment differently, as target, so major part is the open hour sections with additional record.So, need the playing open time period.But with existing open hour section is example, and the problem because of blur boundary with high frequency (RF) field and shake (Wobble) field obtains the address in the shake mode, plays with jitter mode.Therefore at this moment, compared with high frequency mode, its response speed is slower, and during with high power speed scanning video recorder, than shut-in time section before this, speed is slower, and picture cuts off, and causes the defective of scan-data, might become the factor that the consumer is discontented with.
Summary of the invention
The present invention proposes for addressing the above problem just, the method for improving high-speed scanning velocity of the optical recording media that its purpose is to provide such, that is and, the response speed that optical recording media is play is very fast, the picture cutting phenomenon that takes place when preventing the scanning of high power speed.
The present invention relates to the method for improving high-speed scanning velocity of optical recording media, comprise the steps: that (a) user moves the step of the data read instruction of optical recording media storage; (b) data of the above-mentioned user's of the obtaining reading requirement of judgement are the open hour sections, or the step of shut-in time section; (c) if above-mentioned data are the open hour section, just discern the kind of relative photo recording medium, the step of the above-mentioned open hour segment information of identification on the certain field on the optical recording media; (d) utilize the open hour segment information of above-mentioned identification, read the step of related data with high frequency mode.
In the present invention, above-mentioned steps (b) also should comprise if the data that customer requirements reads are the shut-in time section, just at the above-mentioned shut-in time segment information of control field reference, reads the step of related data.
Above-mentioned steps of the present invention (c) is a relative photo recording medium when being DVD+R, utilizes the frag info in the time period controll block (SDCB), distinguishes section shake field and high frequency field correlation time.
Step of the present invention (c) is an optical recording media when being DVD-R, utilizes the information in form 2/ zone 4 in the record management field (RMD), distinguishes the shake field and the high frequency field of section correlation time.
Above-mentioned steps of the present invention (c) is that optical recording media is in the time of can covering the DVD-RW of record (ROW), utilizes form 2/ address information in the record management field (RMD), distinguishes the shake field and the high frequency field of section correlation time.
Above-mentioned steps of the present invention (c) is that optical recording media is can be continuous recording during DVD-RW, utilizes form 2/ address information in the record management field (RMD), distinguishes the shake field and the high frequency field of section correlation time.
During step of the present invention (d) reading of data, optical recording media should rotate with a fixed angular speed.
Effect of the present invention:
As mentioned above, the method for improving high-speed scanning velocity of optical recording media of the present invention by the high frequency address, can obtain data of optical disk, so can reduce response speed, this can prevent that the picture that occurs when optical recording media carries out high-velocity scanning before this from cutting off problem.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 a is the synoptic diagram of existing shut-in time section player method.
Fig. 1 b is the synoptic diagram of existing open hour section player method.
Fig. 2 is the precedence diagram of existing time period player method.
Fig. 3 is the synoptic diagram of the open hour section player method of one embodiment of the invention.
Fig. 4 is the time period player method precedence diagram of one embodiment of the invention.
Embodiment
Embodiment to the method for improving high-speed scanning velocity of optical recording media of the present invention is elaborated below with reference to accompanying drawings.When adding reference marks to the constituent element of following each accompanying drawing, to identical constituent element, even appear at other accompanying drawing, also make it use same-sign as far as possible, also omission is thought the well-known function that may have a negative impact to emphasis of the present invention and the explanation of formation.
Fig. 3 is the synoptic diagram of the open hour section player method of one embodiment of the invention.
The foregoing description is the embodiment that roughly represents the optical recording media spinning solution concerning the open time period.
With reference to Fig. 3, factor is not finished according to record, if the time period is open, shake field and high frequency field are distinguished and just thickened.Therefore, according to the mode of Fig. 4 explanation,, discern the high frequency field in advance with reference to other field.Can discern the high frequency field in advance, therefore can distinguish shake field and the high frequency field of open time period, rotate with Constant Linear Velocity on the shake field, recognition data, but rotate recognition data with constant angular velocity in the high frequency field.
Fig. 4 is the time period player method precedence diagram of one embodiment of the invention.
The foregoing description is roughly to represent to obtain the method for high frequency mode information according to indivedual optical recording medias.
Step 401 is processes that the user moves reading command, if customer requirements reads the particular data that optical recording media stores, main frame just sends the above-mentioned requirements instruction to feeder, and the relative photo pen recorder moves these instructions.
Above-mentioned steps 402 is processes of operation decoding program, because of the mark of above-mentioned optical recording media record only show ' 1 ' or ' 0 ' information, it is converted to the user can recognition data. in above-mentioned steps, with the time period information of grasping the customer requirements data. promptly, the data of grasping customer requirements are at optical recording media, be to exist with the open hour section, still exist with the shut-in time section. as the method for grasping above-mentioned time period information, have multiple, but the present invention should check the control field, if above-mentioned data message based on ' 0 ', then be judged as the open hour section.
Step 403 is in above-mentioned steps 402, and the time period of customer requirements data is separated the importing process to the high frequency field and the field of shake of open time period when being open.
Step 404 is to judge the process of each optical recording media kind, because of each optical recording media with separate standards storage data separately, which kind the identification optical recording media belongs to, the process of classifying is quite important.The foregoing description is only distinguished DVD+R, DVD-R, DVD-RW describes, but can append or omit the kind of above-mentioned optical recording media.Because of belonging to the technology that the correlation technique skilled staff is known altogether, may influence the explanation of argument to the differentiation of above-mentioned each optical recording media, omit explanation this part in this explanation.
Step 405 is to obtain the high frequency field of optical recording media and the process of shake realm information, in the open time period of data, before segment information writing time of control field, time period information is recorded in certain field.Therefore, if the information of utilizing above-mentioned certain field to store, the segment information that takes the time just can correctly be learnt high frequency field and shake realm information.When if above-mentioned optical recording media is DVD+R, utilize the frag info in the time period controll block (SDCB); If during DVD-R, just utilize the information in form 2/ zone 4 in the record management field (RMD); If during DVD-RW, can cover the medium of record and can have gap slightly by continuous recording medium.If in the time of can covering the medium of record (ROW), just utilize form 2 address informations in record management field (RMD); If can continuous recording medium, just utilize form 2/ regional 4 information in record management field (RMD).
That is, the open hour section is an example, because of the mode of certain field with the high frequency mode action, and in the open hour section of utilizing continuous recording to store, can be approaching with the speed of customer requirements.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (7)
1. the method for improving high-speed scanning velocity of an optical recording media is characterized in that comprising following several steps:
(a) user moves the step of the data read instruction of optical recording media storage;
(b) data of the above-mentioned user's of the obtaining reading requirement of judgement are the open hour sections, or the step of shut-in time section;
(c) if above-mentioned data be the open hour section, just discern the kind of relative photo recording medium, on the optical recording media writing time segment information certain field on identification above-mentioned open hour segment information step; Described open hour segment information is meant and is used to distinguish the shake zone of open time period and the information of high-frequency region;
(d) utilize the open hour segment information of above-mentioned identification, read the step of related data with high frequency mode.
2. the method for improving high-speed scanning velocity of optical recording media as claimed in claim 1 is characterized in that;
Described step (b) also should comprise if the data that customer requirements reads are the shut-in time section, just at the above-mentioned shut-in time segment information of control field reference, reads the step of related data.
3. the method for improving high-speed scanning velocity of optical recording media as claimed in claim 1 is characterized in that:
Described step (c) is a relative photo recording medium when being DVD+R, utilizes the frag info in the time period controll block, distinguishes open time period shake field and high frequency field.
4. the method for improving high-speed scanning velocity of optical recording media as claimed in claim 1 is characterized in that:
Described step (c) is an optical recording media when being DVD-R, utilizes the information in form 2/ zone 4 in the record management field, distinguishes shake field and the high frequency field of open time period.
5. the method for improving high-speed scanning velocity of optical recording media as claimed in claim 1 is characterized in that:
Described step (c) is that relative photo recording medium is in the time of can covering the DVD-RW of record, to utilize form 2/ address information in the record management field, distinguishes shake field and the high frequency field of open time period.
6. the method for improving high-speed scanning velocity of optical recording media as claimed in claim 1 is characterized in that:
Described step (c) is a relative photo recording medium for can be continuous recording during DVD-RW, utilizes form 2/ regional 4 information the record management field in, distinguishes shake field and the high frequency field of opening time period.
7. the method for improving high-speed scanning velocity of optical recording media as claimed in claim 1 is characterized in that:
During described step (d) reading of data, optical recording media carries out the constant angular velocity rotation sweep.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510112460A CN1992044B (en) | 2005-12-30 | 2005-12-30 | Method for improving high-speed scanning velocity of optical recording media |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200510112460A CN1992044B (en) | 2005-12-30 | 2005-12-30 | Method for improving high-speed scanning velocity of optical recording media |
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| Publication Number | Publication Date |
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| CN1992044A CN1992044A (en) | 2007-07-04 |
| CN1992044B true CN1992044B (en) | 2010-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200510112460A Expired - Fee Related CN1992044B (en) | 2005-12-30 | 2005-12-30 | Method for improving high-speed scanning velocity of optical recording media |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182266A (en) * | 1996-08-14 | 1998-05-20 | 索尼公司 | Disk driving system and disk driving method |
| CN1352793A (en) * | 1999-05-27 | 2002-06-05 | 松下电器产业株式会社 | Information reproducing apparatus, information carrier, and information recording apparatus |
| CN1420491A (en) * | 1995-09-07 | 2003-05-28 | 先锋公司 | Information reading apparatus |
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2005
- 2005-12-30 CN CN200510112460A patent/CN1992044B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1420491A (en) * | 1995-09-07 | 2003-05-28 | 先锋公司 | Information reading apparatus |
| CN1182266A (en) * | 1996-08-14 | 1998-05-20 | 索尼公司 | Disk driving system and disk driving method |
| CN1352793A (en) * | 1999-05-27 | 2002-06-05 | 松下电器产业株式会社 | Information reproducing apparatus, information carrier, and information recording apparatus |
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| Publication number | Publication date |
|---|---|
| CN1992044A (en) | 2007-07-04 |
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