RU2308099C2 - Information storage environment and method for recording and/or reproduction from it - Google Patents

Abstract

FIELD: information storage environment and method for recording and/or reproduction from it.

SUBSTANCE: in accordance to the invention, in the environment for storage frequency information, the standard version number and review number, different from standard version number, are recorded. Aforementioned numbers are recorded in control area of environment, meant only for reproduction at environment manufacture stage. Recording and/or reproduction of data is performed in accordance to the standard corresponding to standard version number and review number.

EFFECT: possible recognition of additional information in case of change of part of content of the standard.

5 cl, 5 dwg

Description

FIELD OF THE INVENTION

The present invention relates to a medium for storing (storage) information and a method for recording and / or reproducing data from it, and more particularly, to a medium for storing information in which a revision number associated with additional information is recorded if additional information is generated according to the standard with a specific same version number, and a method for recording and / or reproducing data in an information storage medium.

State of the art

Conventional media for storing information are widely used as media for recording information with optical sensors for recording / reproducing information in a non-contact manner. Optical discs, which are media for storing information, are classified as compact discs (CDs) or digital versatile discs (DVDs) according to their information capacity. Examples of rewritable optical discs are 650 MB CD-R, CD-RW, and 4.7 GB DVD + RW. In addition, HD-DVDs with a recording capacity of 20 GB or more are being developed.

Standards for physical structures of various types of storage media or for various methods of recording and / or reproducing data on them are now being established. Standards for storage media deal with a large number of indicators, especially recording capacity and recording speed. For example, if you want many recording / playback modes to increase recording capacity, and they differ from the modes prescribed in the existing standard, the version numbers of the standard change with updating the standards.

When the standard version number is updated, recording / playback modes are prescribed according to the new standard. The content related to the recording / reproduction continues to change, and additional information about the changed content is required. In general, when a new standard is defined, the version number changes. However, only some of the content related to the recording / playback can be changed without any change in the version number. At the state of the art, such additional information is not recorded in a storage medium, but instead is provided through an additional file of additional information.

For storage media that have a standard version of 2.0, write speeds of 1X to 4X are usually prescribed. However, such storage media can record data at a recording speed of up to 5X. Here, since all existing recording speeds are satisfied, the version number does not change, and 5X recording speed information needs to be additionally provided. In the case of storage media with version 2.0 of the standard, information indicating that they can record data at a speed of 5X is recorded in an additional file of additional information.

Therefore, when additional information is generated, the drive system cannot recognize the additional information, thereby causing a great inconvenience to users.

SUMMARY OF THE INVENTION

The present invention provides an information storage medium in which a revision number, in connection with additional information related to standards having identical numbers, is recorded as playback-only data, and data can be adaptively recorded and / or reproduced depending on the revision number.

According to an aspect of the present invention, there is provided an information storage medium comprising a reproduction-only area in which a standard version number and a revision number different from the standard version number are recorded.

The information storage medium may include an input area, a user data area, and an output area, and a playback-only area may be included in at least one of the input or output areas.

The playback-only area may be a disc control data area, and the revision number may be recorded in the m-th byte of the disc control data area.

When the revision number is x.y, x can be written in the first four bits of the mth byte, and y can be written in the last four bits of the mth byte.

According to another aspect of the present invention, there is provided a method of recording and / or reproducing data in an information storage medium that includes an input area, a user data area and an output area, comprising writing a version number of the standard in a playback-only area, at least in one of the input or output areas, write the revision number different from the version number of the standard in the playback-only area, and read the version number of the standard and the revision number, and write can and / or reproduce data according to the standard, the corresponding version number of the standard and the revision number. The last operation is performed by a drive.

According to yet another aspect of the present invention, there is provided a drive system for recording and / or reproducing data in an information storage medium having a playback-only area in which a standard version number and a revision number different from the standard version number are recorded. The drive system includes a sensor that records and / or reproduces data from a storage medium. When the information storage medium is inserted into the drive system, the drive system reads the version number and revision number and records and / or reproduces data according to the standard corresponding to the version number and revision number.

According to yet another aspect of the present invention, there is provided a drive system for recording data in an information storage medium comprising an audio / video (AV) encoder that compresses an AV signal according to a specific compression scheme and provides compressed AV data; a digital signal processor that receives compressed AV data, adds data for processing electronic code correction (ECC) to the compressed AV data, modulates the resulting data according to a specific modulation scheme, and provides modulated data; a radio frequency amplifier (RF), which converts the modulated data into an RF signal and provides this RF signal; and a sensor that records the RF signal in the medium for storing information. Data includes standard version number and revision number different from standard version number.

According to yet another aspect of the present invention, there is provided a drive system for reproducing data recorded in an information storage medium, comprising: a sensor that detects an optical signal from an information storage medium; a radio frequency amplifier (RF), which converts the optical signal into an RF signal of modulated data and generates an RF signal; a digital signal processor that demodulates the modulated data according to a modulation scheme, performs error correction code (ECC) processing, and provides compressed audio / video (AV) data; and an AV decoder that decodes compressed AV data and provides an AV signal. This data represents the version number of the standard and the revision number different from the version number of the standard.

Additional and / or other aspects and advantages of the present invention will be formulated in part in the description that follows, and in part will become apparent from the description or may be learned by practice of the invention.

Brief Description of the Drawings

Figure 1 represents the structure of a data region in a rewritable medium for storing information;

FIG. 2 represents a data structure of a disk control data area in an input area contained in an information storage medium according to an embodiment of the present invention;

3 is a diagram for explaining a method of recording and / or reproducing data in an information storage medium according to an embodiment of the present invention;

Figure 4 represents the structure of a data region in a conventional reproduction-only information storage medium; and

5 is a block diagram of a drive device for recording and / or reproducing data in an information storage medium according to an embodiment of the present invention.

The best mode for carrying out the invention

Detailed references will now be made to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, in which like numbers refer to the same elements throughout the drawings. Embodiments are described below to explain the present invention by reference to the drawings.

An information storage medium according to an embodiment of the present invention and a method for recording and / or reproducing data from it will now be described.

Figure 1 represents the structure of a data region in a rewritable medium for storing information that includes an input region 10, a user data region 20, and an output region 30. The version number of the standard and the revision number can be recorded in the area only for playback, at least one of the areas 10 and 30 of the input and output.

If the recording / reproducing characteristics of the information storage medium have been changed and its standard version number has been changed, the number associated with the changed characteristic information is provided and is called the revision number. This revision number may be provided when additional information is generated.

In other words, when the content of at least one of the elements associated with recording and / or reproducing data that are set according to the standard corresponding to the version number of the standard has been changed, the revision number corresponding to the changed element is recorded.

The input area 10 is divided into a playback-only area and a rewritable area. The input area 10 includes a first buffer zone 10-1, a disk test data zone 10-2, a disk test zone 10-3, a drive device test zone 10-4, a defect management zone 10-5, a backup zone 10-6, and a second buffer zone 10-7. For example, the first buffer zone 10-1 and the disk control data zone 10-2 belong to the reproduction-only area when data is recorded during the manufacture of the storage medium. Other zones belong to the rewritable area.

The version number and revision number are recorded in the area 10-2 of the control data of the disk. As shown in FIG. 2, the disk control data area 10-2 is composed of a plurality of bytes. The revision number is written in the m-th byte of the zone 10-2 of the control data of the disk. Figure 2 represents an example in which the revision number is recorded in the third byte of the zone 10-2 of the control data of the disk. Alternatively, the revision number is overwritten in the backup zone, which is the tenth zone.

As shown in FIG. 3, one byte is composed of 8 bits, which are bits zero through seven (0b to 7b). If the revision number is xy and is written in one byte, x is written in four bits in front, i.e. from the seventh to fourth bits 7b to 4b, while y is written in four bits from the back, that is, in bits from third to zero 3b to 0b. If the revision number is 0.1, it can be written as 00000001b. If the revision number is 1.1, it can be written as 00010001b. When the revision number is written this way, hexadecimal or binary systems are used.

Now will be described an example of a storage medium in which the version of the standard does not change, and the revision number is presented on the storage medium. For example, the standard version 2.1 prescribes recording speeds of 1X to 4X. However, if a write speed of up to 5X is possible, the fact that data can also be recorded with a 5X write speed without changing the version 2.1 number should be indicated. In this case, the version number, for example 2.1, can be written in the zero byte, while the revision number, for example 1.0, can be written in the m-th byte. The drive device, which records / reproduces data on / from the storage medium, reads the revision number and, accordingly, can record / reproduce data at a recording speed of 5X.

If data can be recorded not only with recording speeds of 1X to 4X, but also with writing speeds of 5X and 6X, the version number is maintained as 2.1, and the revision number is recorded, providing additional information about the recording speed of 6X. For example, 2.0 is recorded as the new revision number. The drive device reads the new revision number and, therefore, can record and / or play back data at a recording speed of 6X. If the revision number is 1.0, data can be recorded at write speeds up to 5X. If the revision number is 2.0, then a write speed of up to 6X is possible for data recording.

The provision of revision number when recording speed changes has been described above. However, even when an element other than the recording speed changes, for example, even when the eccentricity of the mass or the recording capacity changes, a revision number is provided.

As described above, the revision number is updated whenever new additional information is generated. The updated revision number is recorded in a specific single byte. The revision number is recorded as playback-only data in the manufacture of the storage medium. For example, the revision number may be written as hollows or grooves of grooves.

Also, the revision number can be recorded both in the playback-only area of the input area 10, and in such an output area 30. Alternatively, the revision number may be recorded in each of at least two bytes of the region only for reproducing the input region or output region 10 or 30. For example, the revision number may be recorded in each of the mth and (m + 1) th bytes of the zone 10-2 disk test data. By this, when any of the re-recorded revision numbers is damaged, other revision numbers can be used, thereby increasing the reliability of the revision number.

FIG. 4 represents the structure of a data region in a conventional reproduction-only information storage medium, which includes an input area 40, a user data area 45, and an output area 50. All of these areas are made up of a play-only area. The revision number is especially recorded in the data region 40-1 related to the disc included in the input region 40. The revision number can be re-recorded in areas 40 and 50 of both input and output. Alternatively, the revision number may be recorded at least twice in the input or output area 40 or 50.

A method for recording and / or reproducing data in an information storage medium according to an embodiment of the present invention will now be described with reference to FIG. First, the version number of the standard is recorded in the area only for playing at least one of the input and output areas 10 and 30, and the revision number different from the version number of the standard is also recorded in this area. Additional information corresponding to the revision number is separately indicated in a specific area.

For example, the revision number is recorded in a specific byte of the zone 10-2 of the control data of the disk included in the input area 10. If an information storage medium having a revision number is inserted into the drive device, the drive device reads the standard version number and revision number and writes and / or reproduces data to and / or from the information storage medium according to the standard corresponding to the standard version number and revision number .

A drive system for recording and / or reproducing data in an information storage medium according to an embodiment of the present invention is shown in FIG. 5. When recording audio / video (AV) data, encoder 110 compresses the AV signal according to a specific compression scheme and provides information about the size of the compressed data. Digital signal processor 120 receives the compressed AV data from the AV encoder 110, adds ECC processing data for the compressed AV data, and modulates the resulting data according to a particular modulation scheme. An radio frequency (RF) amplifier 130 converts the data modulated by the digital signal processor 120 into an RF signal. The sensor 140 records the RF signal received from the RF amplifier 130 to a disk mounted on a rotating platform of the sensor 140. The servo mechanism 150 receives the data necessary for auxiliary control from the system controller 160 and performs the function of tracking the disk.

When reproducing data recorded on a disc, the sensor detects an optical signal from the disc and extracts the recorded data from the optical signal. An RF amplifier 130 converts an optical signal into an RF signal and extracts and modulates an auxiliary signal to perform a tracking function. Digital signal processor 120 demodulates the modulated data that is received from the RF amplifier 130 according to the modulation scheme used to modulate the data, corrects the error by processing the error correction code (ECC), and extracts additional data from the recorded data. The servo mechanism 150 receives the data necessary for auxiliary control from the controller 160 of the system. The AV encoder 110 decodes the compressed AV data received from the digital signal processor 120 and provides an AV signal. The system controller 160 controls the entire drive system for recording and reproducing data on a disk mounted on a rotating platform of the sensor.

When a storage medium is inserted into such a drive device, the drive device reads the version number and revision number and records and / or reproduces data according to a standard corresponding to this version number and revision number.

In the method of recording and / or reproducing data according to an embodiment of the present invention, if the content of an element in an identical version of the standard is changed, a revision number corresponding to the changed content is recorded. If the eccentricity of the mass of the storage medium changes, the revision number associated with the changed eccentricity of the mass, for example, number 2.0, is written in a special byte of zone 10-2 of the control data of the disk.

Although the case where the mass eccentricity was changed is described above, it should be understood that the same rule applies to the case when the recording speed changes, so this case is not described in detail.

In the method of recording and / or reproducing data according to an embodiment of the present invention, since the storage media is quickly updated, there is a high probability that the content defined in the standards is modified. Additional data is provided so that the drive recognizes the modified content.

Industrial applicability

As described above, in a method of recording and / or reproducing data in an information storage medium according to an embodiment of the present invention, a revision number different from the version number of the standard is recorded. If any element changes while the standard for the medium for storing information is supported, then a revision number corresponding to the changed content is provided. A drive device that records and / or reproduces data in a storage medium recognizes the changed information using a revision number, and can adaptively record or reproduce data based on the changed information.

Although several embodiments of the present invention have been demonstrated and described, the present invention is not limited to the described embodiments. Specialists in the art will appreciate the fact that changes can be made to these embodiments without deviating from the principles and essence of the invention, the scope of legal protection of which is defined in the claims and their equivalents.

Claims (22)

1. An information storage medium containing a playback-only area in which a standard version number and a revision number other than the standard version number are recorded, the revision number corresponding to the changed elements when the contents of at least one of the elements associated with the recording and / or by reproducing data that is set according to the standard corresponding to the version number of the standard has been changed. 2. The medium for storing information according to claim 1, additionally containing input area user data area, and output area wherein the playback-only area is included in at least one of the input or output areas. 3. The information storage medium according to claim 2, in which the playback-only area is a disk control data area included in at least one of the input or output areas. 4. The medium for storing information according to claim 3, in which the revision number is recorded in the m-th byte of the control data area of the disk. 5. The medium for storing information according to claim 4, in which every time a revision number is changed, the changed revision number is recorded in the m-th byte. 6. An environment for storing information according to any one of claims 2 to 5, in which the revision number is re-recorded both in the input area and in the output area. 7. The information storage medium according to claim 4 or 5, in which, when the revision number is x.y, x is recorded in the first four bits of the mth byte, and y is recorded in the last four bits of the mth byte. 8. The information storage medium according to claim 7, in which one system from a hexadecimal system or a binary system is used to record the revision number. 9. A medium for storing information according to any one of claims 1 to 3, in which the revision number is re-recorded in at least two bytes in the area only for playback. 10. An environment for storing information according to any one of claims 1 to 5, in which the standard version number and revision number indicate at least one indicator associated with the recording and / or reproduction of data established in accordance with the standard corresponding to the standard version number , and in which, when the content of at least one of the elements changes, the revision number corresponding to the changed element is recorded. 11. The information storage medium according to claim 10, in which at least one indicator is one of the following: recording speed, mass eccentricity and recording capacity. 12. A method of recording and / or reproducing data in an information storage medium that includes an input area, a user data area, and an output area, the method comprising: write the version number of the standard in the area only for playing at least one of the input or output areas; write the revision number, different from the version number of the standard, in the field only for playback; and read the version number of the standard and the revision number and record and / or reproduce the data according to the standard corresponding to the version number of the standard and the revision number, moreover, the revision number corresponds to the changed elements, when the content of at least one of the elements associated with the recording and / or reproduction of data that are set according to the standard corresponding to the version number of the standard has been changed. 13. The method of claim 12, wherein the drive reads. 14. The method according to item 12, in which the area only for playback is a zone of control data of the disk included in at least one of the input or output areas. 15. The method according to item 12, in which the revision number is recorded in the m-th byte of the control data area of the disk. 16. The method according to clause 15, in which every time the revision number is changed, the changed revision number is recorded in the m-th byte. 17. The method according to any one of paragraphs.12-16, in which the revision number is re-recorded both in the input area and in the output area. 18. The method according to any one of claims 15 or 16, wherein when the revision number is x.y, x is recorded in the first four bits of the mth byte, and y is recorded in the last four bits of the mth byte. 19. The method according to any one of paragraphs.12-16, in which the revision number is re-recorded in at least two of the bytes in the area only for playback. 20. A drive system for recording and / or reproducing data in an information storage medium having a playback-only area in which a standard version number and a revision number other than the standard version number are recorded, and the revision number corresponding to the changed elements when the content at least one of the elements associated with the recording and / or reproduction of data that are set according to the standard corresponding to the version number of the standard has been changed, containing a sensor that records and / or reproduces data from the information storage medium, in this case, when the medium for storing information is inserted into the drive system, the drive system reads the version number and revision number and writes / or reproduces data according to the standard corresponding to the version number and revision number. 21. A drive system for recording data in an information storage medium, comprising an audio / video (AV) encoder that compresses an AV signal according to a specific compression scheme and provides compressed AV data; a digital signal processor that receives compressed AV data, adds data for processing electronic code correction (ECC) to the compressed AV data, modulates the resulting data according to a specific modulation scheme, and provides modulated data; a radio frequency amplifier (RF), which converts the modulated data into an RF signal; and a sensor that records an RF signal in an information storage medium, while recording the version number of the standard and the revision number different from the version number of the standard, and the revision number corresponds to the changed elements when the content of at least one of the elements associated with the recording and / or reproduction of data that are set according to the standard corresponding to the number version of the standard has been changed. 22. A drive system for reproducing data recorded in an information storage medium, comprising a sensor that detects an optical signal from an information storage medium; a radio frequency amplifier (RF), which converts the optical signal into an RF signal of modulated data and generates an RF signal; a digital signal processor that demodulates the modulated data according to a modulation scheme, performs error correction code (ECC) processing, and provides compressed audio / video (AV) data; and An AV decoder that decodes compressed AV data and provides an AV signal, while recording the version number of the standard and the revision number different from the version number of the standard, and the revision number corresponds to the changed elements when the content of at least one of the elements associated with the recording and / or reproduction of data that are set according to the standard corresponding to the number version of the standard has been changed.

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