JPH117705A - Recorder of optical disc, optical disc data transfer device, optical disc data format device and optical disc reproducer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To copy an image data recorded in a video CD into a DVD(digital versatile disc)-RAM. SOLUTION: When data in a VCD(video CD) is copied into a DVD-RAM, the first VCD sector data n0 of 2352 bytes is divided into 2048 bytes and the remaining 304 bytes and the data of the 2048 bytes is recorded into the user data area UD0 of a first 1 DVD-RAM sector m0 and the data of the remaining 304 bytes is recorded into a user data area UD1 of a second DVD-RAM sector m1. The second VCD sector data n1 is recorded starting with the 305 bytes of the user data area UD1 of the second DVD-RAM sector m1. Likewise, subsequently, the VCD sector data (n) is divided to match the user data area UD of the 2048 bytes of the DVD-RAM sector (m) to be distributed to the user data area UD for recording.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to the reproduction and format conversion of data recorded on an optical disc.
In particular, the present invention relates to an optical disk recording device and an optical disk data transcription device for converting data of a video CD and recording in another format, an optical disk data formatting device, and an optical disk reproducing device for reproducing recorded data.

[0002]

2. Description of the Related Art Generally, a CD-R is used as a medium for copying image data recorded on a video CD.

[0003]

By the way, recordable DV in a DVD (digital versatile disk)
Since the D-RAM can record data at a higher density than the CD-R, if image data recorded on a video CD can be copied to a DVD-RAM, a large amount of image data can be copied. . However, since the data formats of the DVD-RAM and the video CD are different, there is a problem that the image data recorded on the video CD cannot be directly copied to the DVD-RAM.

[0004] In view of the above problems, an object of the present invention is to provide an optical disk recording apparatus and a reproducing apparatus capable of copying image data recorded on a video CD to a DVD-RAM.

[0005]

According to the present invention, in order to achieve the above object, the capacity of sector data of a video CD is reduced to a DVD.
-In consideration of being larger than the user data area of the RAM, the video CD sector is divided and allocated to the user data area of the DVD-RAM and recorded on the DVD-RAM;
In addition, the video CD sectors allocated and allocated to the user data area of the DVD-RAM are replaced with the original video CD sectors.
It is designed to be combined and played back in a format.

That is, according to the present invention, a means for formatting data recorded on a video CD in a video CD format by dividing a video CD sector and distributing and allocating the data to a user data area of a DVD-RAM. An optical disk recording apparatus comprising: a recording unit that records data formatted by the formatting unit on a DVD-RAM.

Further, according to the present invention, a means for reading data recorded on a video CD in a video CD format, and dividing the data read by the reading means into a video CD sector to form a DVD-RAM There is provided an optical disc data transcription device including: means for formatting so that the data can be distributed and arranged in a user data area; and recording means for recording data formatted by the formatting means on a DVD-RAM.

According to the present invention, data of a video CD recorded in a video CD format is
Means for taking out the D sector in a divided form;
Means for formatting the data so that it can be allocated and arranged in the user data area of the AM.

Further, according to the present invention, there is provided an optical disc having a reproducing means for combining and reproducing video CD sectors allocated to a user data area of a DVD-RAM so as to have an original video CD format. A playback device is provided.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. Figure 1 shows a video CD and a DVD-RA
FIG. 2 is an explanatory diagram illustrating each format of M, FIG. 2 is an explanatory diagram illustrating a process of copying data of a video CD to a DVD-RAM, and FIG. 3 is a flowchart illustrating a process of copying data of a video CD to a DVD-RAM. FIG. 4 is a block diagram showing an example of an optical disk recording device (transcription device) according to the present invention, FIG. 5 is a block diagram showing another example of the optical disk recording device according to the present invention, and FIG. It is a block diagram which shows another example of an apparatus.

FIG. 7 is an explanatory diagram showing a process of combining data of a video CD recorded on a DVD-RAM, and FIG.
Is a flowchart for explaining a process of combining and reproducing data of a video CD recorded on a DVD-RAM;
FIG. 9 is a block diagram showing an example of the optical disk reproducing apparatus according to the present invention, FIG. 10 is a block diagram showing another example of the optical disk reproducing apparatus according to the present invention, and FIG. It is a block diagram showing an example.

As shown in FIG. 1A, the format of a video CD (hereinafter, VCD) is one sector (hereinafter, VCD).
Sector) is composed of 2352 bytes, and this 1 VCD sector includes 12 bytes of synchronization (SYNC) data, minutes,
It is composed of a header indicating seconds, sector mode, and the like in 4 bytes, an 8-byte subheader, 2324-byte VCD data, and 4-byte EDC (error detection code). The VCD data is compressed according to the MPEG1 system. On the other hand, in the DVD-RAM format, as shown in FIG. 1B, one sector (hereinafter, DVD-RAM sector) is composed of 2060 bytes, and one DVD-RAM sector has a 12-byte header and 2048 bytes. It is composed of byte user data.

Therefore, VCD data is transferred to a DVD-RAM
2, the 2352-byte first VCD sector data n0 is divided into 2048 bytes and the remaining 304 bytes as shown in FIG.
The data is recorded in the user data area UD0 of the VD-RAM sector m0, and the remaining 304 bytes are recorded in the user data area UD1 of the second DVD-RAM sector m1. Then, the second VCD sector data n1 is stored in the second DVD-RAM.
Recording is performed from the 305th byte of the user data area UD1 of the sector m1, and thereafter, similarly to the DVD-RAM sector m.
The VCD sector data n is divided so as to fit in the 2048-byte user data area UD, and is distributed to the user data area UD and recorded. That is, conversion from the VCD format to the DVD-RAM format is performed.

FIG. 3 is a block diagram of V compressed by the MPEG1 system.
This shows a process of copying CD data to a DVD-RAM in the same format without decompressing CD data. First, when VCD sector data is input (step S
1) This is cut out to fit the 2048-byte user data area of the DVD-RAM sector (step S
2) Write to the user data area of the DVD-RAM sector (step S3). Next, if more VCD data is required, the process returns from step S4 to step S1, while if not, the process returns from step S4 to step S2.
Return to

FIG. 4 shows an example of an optical disk recording apparatus.
This shows a configuration for copying (transferring) data in real time, and requires a VCD player and a DVD player. V
V reproduced from the CD disk 1 by the VCD player
CD data is RF-LSI2, CD-DSP (Digital Signal Processor) 3, DVD-DSP4, RF-L
The DVD-RA is sent to the DVD player via SI5.
It is recorded on the M disk 6. At this time, the microcomputer 7 (μcom) connects these blocks 2 to 5 with VC
By controlling the D player and DVD player,
Copy control as shown in FIG. 3 is performed.

FIG. 5 shows, as another example, a configuration in which an HDD 8 is used as a buffer memory for copying, and a VCD player and a DVD player, or VCs having different thicknesses and resolutions.
A DVD / VCD dual-purpose player of a bifocal pickup system capable of accessing D and DVD is required. VCD data reproduced from the VCD disc 1 by a VCD player or a DVD / VCD dual-purpose player is an RF-LSI 2,
The data is sent to the HDD 8 via the DVD-DSP 4,
It is temporarily recorded on the HD inside. Next, the HD
Data read from DVD-DSP4, RF-L
The data is sent to a DVD player or a DVD / VCD dual-purpose player via the SI 2 and recorded on the DVD-RAM disk 6. Also at this time, the microcomputer 7 controls the blocks 2, 4, and 8 and the VCD player and the DVD player or the DVD / VCD dual-purpose player to perform the copy control as shown in FIG.

FIG. 6 shows an apparatus for transferring data temporarily recorded on the HD in the HDD 8 to the DVD-RAM drive device 10 of the personal computer and recording the data on the internal DVD-RAM disk 6, and the CPU 9 in the personal computer. Performs this transfer control.

The VCD data recorded in the DVD-RAM format as described above is, as shown in FIG.
It can be returned to the D format for playback. In FIG. 7, VCD data recorded in the 2048-byte user data area UD of the DVD-RAM sector m is combined with VCD data recorded in the user data area UD of the adjacent DVD-RAM sector m at the time of reproduction, and Of the VCD sector n of 2352 bytes is restored.

The reproduction process will be described with reference to FIG. 8. First, when DVD-RAM sector data is input (step S11), next, VCD sector data recorded in the user data area of the DVD-RAM sector is read. SY
It is determined whether or not NC data has been detected (step S1).
2) If not detected, the process proceeds to step S13,
On the other hand, if it has been detected, the process proceeds to step S15. In step S13, processing for detecting the SYNC data of the VCD sector data is performed, and in step S14, the SYNC data is detected.
The header and sub-header following the C data are stored, and the flow advances to step S15. In step S15, V following the subheader
It is determined whether or not the CD data is completed for one sector (2324 bytes). If not, the process returns to step S11. Otherwise, the process proceeds to step S16 to decode the VCD data by the MPEG1 method. Then, the process returns to step S12.

FIG. 9 shows an apparatus for combining and reproducing VCD sector data recorded in a user data area of a DVD-RAM sector. DVD player or DV
The data reproduced from the DVD-RAM disc 6 by the D / VCD dual-purpose player is RF-LSI2, DVD-
It is sent to the decoding DSP 11 via the DSP 4. As shown in FIG. 8, the decoding DSP 11 combines the video CD sectors allocated to the user data area UD area of the DVD-RAM sector so as to have the original video CD format, and The signal and the audio signal are output via a video signal output terminal and an audio signal output terminal, respectively. At this time, the microcomputer 12 controls the decoding DSP 11 to perform the reproduction shown in FIG.

FIGS. 10 and 11 show a reproducing apparatus in which the data is transferred to the DVD-RAM drive device 10 of the personal computer and recorded on the internal DVD-RAM disk 6 as shown in FIGS. In the reproducing apparatus shown in FIG. 10, the personal computer has a decode DS
An MPEG playback board 11a on which P11 is mounted is connected, and a DVD-R drive 10
The data reproduced from the AM 6 is transferred to the decoding DSP 11, and the video CD sectors allocated to the user data area UD area of the DVD-RAM sector are converted to the original video CD format, similarly to the apparatus shown in FIG. And the video and audio signals in the VCD sector data are decoded.

In the reproducing apparatus shown in FIG. 11, the reproduction processing program shown in FIG. 8 is recorded on the video / audio card 12, and the CPU 9 of the personal computer reads out the DVD-ROM read by the DVD-RAM drive device 10 based on this program. -Reproduce the VCD data in the user data area of the RAM sector.

[0023]

As described above, according to the present invention, in consideration of the fact that the capacity of the sector data of the video CD is larger than the user data area of the DVD-RAM, the video CD sector is divided and the user data of the DVD-RAM is divided. Allocated to an area and recorded on a DVD-RAM.
Since the video CD sectors allocated and allocated to the user data area of the RAM are combined and reproduced so as to have the original video CD format, the video C
The image data recorded in D can be copied to a DVD-RAM.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing each format of a video CD and a DVD-RAM.

FIG. 2 is an explanatory diagram showing a process of copying data of a video CD to a DVD-RAM.

FIG. 3 is a flowchart illustrating a process of copying data of a video CD to a DVD-RAM.

FIG. 4 is a block diagram showing an example of an optical disk recording device according to the present invention.

FIG. 5 is a block diagram showing another example of the optical disc recording apparatus according to the present invention.

FIG. 6 is a block diagram showing still another example of the optical disc recording apparatus according to the present invention.

FIG. 7 is an explanatory diagram showing a process of combining data of a video CD recorded on a DVD-RAM.

FIG. 8 is a flowchart illustrating a process of reproducing data of a video CD recorded on a DVD-RAM.

FIG. 9 is a block diagram showing an example of an optical disk reproducing device according to the present invention.

FIG. 10 is a block diagram showing another example of the optical disc reproducing apparatus according to the present invention.

FIG. 11 is a block diagram showing still another example of the optical disc reproducing apparatus according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Video CD disk 3 CD-DSP 6 DVD-RAM disk 7 Microcomputer (formatting means, recording means) 8 HDD 9 CPU (recording means) 10 DVD-RAM drive device 11 Decoding DSP (reproducing means) 12 Video / audio card (Reproduction means)

Claims (4)

[Claims] 1. Data recorded in a video CD format on a video CD is divided into video CD sectors,
An optical disc recording device, comprising: means for formatting so that the data can be distributed to a user data area of a DVD-RAM so as to be arranged; and recording means for recording data formatted by the formatting means on a DVD-RAM. 2. A means for reading data recorded on a video CD in a video CD format;
Optical disk data comprising: means for dividing a D sector and formatting it so that it can be allocated and arranged in a user data area of a DVD-RAM; and recording means for recording data formatted by the formatting means on a DVD-RAM. Transcription device. 3. A means for extracting data of a video CD recorded in a video CD format by dividing a video CD sector, and a user data area of a DVD-RAM for extracting data of the video CD extracted by the extracting means. Means for formatting so that the data can be distributed and arranged. 4. An optical disc reproducing apparatus having a reproducing means for combining and reproducing data of a video CD sector arranged in a user data area of a DVD-RAM so as to have an original video CD format.