JP2002269752A - Optical disk recorder, optical disk reproducing device and optical disk recording/reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extend application of an optical disk recording medium like recording CD media, large capacity recording DVD medium, etc., which are widely used in the world. SOLUTION: User data to be recorded on the recordable optical disk 1 are converted to recording pit data of a data format different from a data format of this optical disk 1 by an encoder part 25, and the converted recording pit data are written and recorded in the manner of irradiating the optical disk 1 with laser beams, by a light pickup (PU) part 3, an LD control part 4, a PU driving part IQ, a servo part 18 and a signal processing part 27 in accordance with the control of a system controller part 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a recordable CD.
The present invention relates to an optical disk recording device that performs recording control on an optical disk recording medium such as a DVD, an optical disk reproducing device that controls reproduction of the optical disk recording medium, and an optical disk recording and reproducing device that performs recording control and reproduction control on the optical disk recording medium.

[0002]

2. Description of the Related Art At present, CD-Rs, CD-RWs, and DVs that have compatibility with data formats of CD-ROMs have been developed.
Recordable optical disc media, such as DVD-R and DVD-RW, having data formats compatible with D-ROMs are defined, and drive devices for recording and reproducing them are being developed. Due to the external shape and characteristics of CDs and DVDs, many reproduction compatible drive devices capable of reproducing CD-ROMs and DVD-ROMs have appeared. Furthermore, CD-R and CD-RW of a CD recording system
At the same time, a recording compatible drive device for recording and reproducing DVD-R, CD-RW and the like of DVD recording system has been appearing.
No. 0-207766).

[0003]

However, CDs,
Since the data format of DVD media is recorded along with its form, optical properties, etc., in a conventional recording drive device, a CD has a CD data format,
The DVD is converted into DVD data format and converted into pit data for recording, and laser recording is performed. Therefore, the maximum CD capacity is limited to 650 MB, and even if DVD content is created, it is recorded. There is a problem that DVD media is more expensive than CD media. In addition, International Publication Number W097
In the technology described in Japanese Patent Application Laid-Open No. 10/10592, a control device for recording and reproducing a plurality of disk-shaped rotating recording media is disclosed, but its use is mainly to reduce the size of the device by sharing a mechanism such as rotation. No mention is made of the application of the data format to the recording medium. further,
Even in the technology described in Japanese Patent Application Laid-Open No. 2000-207766, a patent relating to a pickup does not affect the data format.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has been widely used for recording C.
An object of the present invention is to expand the use range of optical disk recording media such as D media and large-capacity recording DVD media.

[0005]

In order to achieve the above object, the present invention converts user data recorded on a recordable optical disk recording medium into recording pit data having a data format different from the data format of the optical disk recording medium. Recording data converting means for converting, and recording control means for performing recording control for writing and recording the recording pit data converted by the recording data converting means on the optical disk recording medium by irradiating the optical disk recording medium with laser light. An optical disk recording device provided with:

In the above optical disk recording apparatus, the optical disk recording medium is a recordable CD recording medium, and the recording data conversion means converts the user data into recording pit data in a DVD data format. Time DVD data format conversion means,
A DVD which performs recording control for writing and recording the recording pit data of the DVD data format converted by the DVD data format conversion means at the time of recording by irradiating the recording control means with laser light on the recordable CD recording medium. It is preferable to provide pit data recording control means for data format recording.

Further, in the above optical disk recording device, the optical disk recording medium is a recordable DVD.
A recording medium, wherein the recording data conversion means includes a recording CD data format conversion means for converting the user data into recording pit data in a CD data format;
A CD for performing recording control for writing and recording recording pit data of a CD data format converted by the recording CD data format conversion means by irradiating the recording control means with laser light on the recordable DVD recording medium. It is preferable to provide pit data recording control means for data format recording.

[0008] Further, at least two or more recording data conversion means for converting user data recorded on a recordable optical disk recording medium into recording pit data having a data format different from the data format of the optical disk recording medium, Selection means for selecting any one of the recording data conversion means before recording on the optical disc recording medium; and recording data conversion means selected by the selection means by irradiating the optical disc recording medium with laser light. Also provided is an optical disc recording apparatus provided with a recording control means for performing recording control for writing and recording the converted recording pit data.

Further, in the above optical disk recording apparatus, each of the recording data conversion means converts at least the user data into recording pit data of a DVD data format, and a recording DVD data format conversion means; It has a recording CD data format conversion means for converting into recording pit data of CD data format, and when the optical disc recording medium is a recordable CD recording medium, the recording means selects the DVD data format conversion means for recording by the selection means. If the optical disk recording medium is a recordable DVD recording medium, a means for controlling the selection means to select the recording CD data format conversion means may be provided.

[0010] Further, reproduction control means for performing reproduction control for reading out and reproducing pit data recorded on the optical disk recording medium by irradiating the optical disk recording medium with a laser beam, and reproducing the data read by the reproduction control means. Provided is an optical disc reproducing apparatus including a reproduced data conversion means for processing pit data as a data format different from the data format of the optical disc recording medium and converting the data into user data.

Further, in the above optical disk reproducing apparatus, the optical disk recording medium is a CD recording medium, and the pit data is read out and reproduced by irradiating the reproduction control means with a laser beam on the CD recording medium. CD reproduction control means for controlling the reproduction data conversion means; and a reproduction DVD data format conversion means for processing reproduction pit data read by the CD reproduction control means as a DVD data format and converting the data into user data. It is good to provide each.

In the above optical disk reproducing apparatus, the optical disk recording medium is a DVD recording medium, and the pit data is read out and reproduced by irradiating a laser beam to the DVD recording medium to the reproduction control means. DVD playback control means for controlling the playback data conversion means; and CD data format conversion means at the time of playback for processing the playback pit data read by the DVD playback control means as a CD data format and converting the data into user data. It is good to provide.

[0013] Further, reproduction control means for irradiating a laser beam onto the optical disk recording medium to perform reproduction control for reading and reproducing pit data recorded on the optical disk recording medium, and reproduction pits read by the reproduction control means. At least two or more playback data conversion means for processing data as a data format different from the data format of the optical disc recording medium and converting the data into user data; and An optical disc reproducing apparatus provided with a selecting means for selecting any one is also provided.

In the above-mentioned optical disk reproducing apparatus, each of the reproduction data conversion means processes at least the reproduction pit data as a DVD data format and converts the data into user data. A reproducing CD data format converting means for processing the pit data as a CD data format and converting the data into user data; and when the optical disk recording medium is a CD recording medium, the selecting means controls the reproducing DVD data format converting means. Preferably, when the optical disk recording medium is a DVD recording medium, a means for controlling the selecting means to select the reproducing CD data format converting means may be provided.

Further, at least two or more recording data conversion means for converting user data recorded on a recordable optical disk recording medium into recording pit data having a data format different from the data format of the optical disk recording medium, First selecting means for selecting any one of the recording data converting means before recording on the optical disc recording medium; and pit data recorded on the optical disc recording medium by irradiating the optical disc recording medium with laser light. A playback control means for performing playback control for reading and playing back, and at least converting playback pit data read by the playback control means into user data by processing the data as a data format different from the data format of the optical disc recording medium. Two or more playback days Converting means, second selecting means for selecting any one of the reproduction data converting means before reproducing the optical disc recording medium, recording control by the recording control means on one of two different optical disc recording media, On the other hand, the recording / reproduction control means for simultaneously realizing the reproduction control by the reproduction control means, and the recording data conversion means for the first selection means are not selected.
An optical disk recording / reproducing apparatus comprising means for controlling the second selection means so as not to select any of the reproduction data conversion means.

[0016]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an optical disk recording / reproduction control device according to an embodiment of the present invention. The optical disk recording / reproduction control device includes two encoders for a CD recording medium and a DVD recording medium, and two decoders for a CD recording medium and a DVD recording medium. An encoder selection switching means for recording data in a data format and a decoder selection switching means for reproducing data from an optical disk recording medium as a CD data format and a DVD data format are provided. This is an apparatus capable of recording data in a CD data format on a medium, and reproducing data in a DVD data format recorded on a CD recording medium and data in a CD data format recorded on a DVD recording medium, respectively.

This optical disk recording / reproduction control device has a CP
Each unit is realized by a microcomputer including a U, a ROM, a RAM, and the like, and includes a data / signal control block unit 2 and a system controller block unit 24 as shown in FIG. Arrow lines in the data / signal control block 2 indicate a control flow and a data flow during recording or reproduction on the optical disc 1. The data / signal control block unit 2 further includes a control signal processing block unit 21, a data conversion block unit 22, and a data management block unit 23. Next, functions and processes of each unit in each block will be described.

Reference numeral 1 denotes a C for recording data (information) by the irradiated laser beam or reproducing the recorded data.
This is an optical disk which is an optical disk recording medium such as a D recording medium and a DVD recording medium. The optical disc 1 has a recording groove from the inner circumference to the outer circumference called a track, and is rotated by a spindle drive unit 9. The optical pickup unit 3
A semiconductor laser light source (L
aser Diode (LD) and photo detector (Photo)
o Diode (PD), the LD emits a laser beam and irradiates the laser beam to the optical disc 1, and at the same time, the PD receives reflected light based on the illuminated light.

The optical pickup section 3 sends the received optical signal of the reflected light to the signal processing section 27 as an electric signal. The signal processing unit 27 demodulates an address prerecorded on the optical disc 1, detects a track error signal and a focus error signal, and sends them to the servo unit 18. In particular, the signal processing section 27 functions as a control signal processing means for CD when the optical disk 1 to be recorded or reproduced in the optical disk recording / reproduction control device is a CD recording medium, and controls a DVD control signal when the optical disk 1 is a DVD recording medium. Function as signal processing means.

FIG. 1 shows an example of a configuration in which a plurality of signal processing units, that is, both a CD control signal processing unit 12 and a DVD control signal processing unit 13 are provided. Thereafter, the third selector 11 selects the CD control signal processing unit 12 when the optical disk recording medium is a CD recording medium, and selects the DVD control signal processing unit 13 when the optical disk recording medium is a DVD recording medium, and sets them in advance. Further, a control signal processing unit for another type of optical disk recording medium may be provided.

The servo section 18 implements seek control, focus control, and the like for the optical pickup section 3 via the optical pickup drive section 10 by a signal from the signal processing section 27. Further, rotation control is performed on the spindle drive unit 9. Further, at the time of recording, the signal processing unit 27 detects the wobble of the track of the optical disc 1, generates a write clock by a phase lock loop (PLL) circuit not shown, and sends the clock to the LD control unit 4. L
The D control unit 4 mainly performs setting control of a light emission pattern to the LD in the optical pickup unit 3 and a read / write light amount.

The encoding unit (encoder unit) 25 processes data scrambling, error correction bit addition, modulation and the like according to a prescribed format (CD data format, DVD data format) for each medium, and uses the result as a recording pit pattern. Send to LD control unit 4. Here, the encoder unit 25 functions as CD encoding means for converting user data into recording pit data in a CD data format for a CD recording medium if the optical disk 1 to be recorded in the optical disk recording / reproduction control device is a DVD recording medium. Or a DVD for a DVD recording medium if the optical disc 1 to be recorded is a CD recording medium.
DV to convert to recording pit data in data format
It functions as D encoding means.

In FIG. 1, a plurality of encoding units, that is, a CD encoding processing unit (CD ENC) 5 and D
The figure shows a configuration example in which both a VD encoding processing unit (DVD ENC) 6 is provided. In this case, after the media discrimination procedure is performed, the first selector 7 executes the DVD encoding processing unit when the optical disc recording medium is a CD recording medium. 6
Is set in advance by selecting each of the CD encoding units 5 in the case of a DVD recording medium. In some cases, the data is sent to the LD control unit 4 without encoding.
At this time, the first selector 7 also sets the value in advance. Then, the LD controller 4 causes the LD to emit light in synchronization with the write clock described above. Further, at the time of reproduction, the signal processing unit 27 obtains recording pit data from the strength of the acquired reflected light and sends it to the decoding unit (decoder unit) 26.

The decoding section 26 demodulates the sent recording pit data, processes it according to a prescribed format for each medium such as error correction and descrambling, and sends the result to the data controller section 8 as user data. If the optical disk 1 to be reproduced by the optical disk recording / reproduction control device is a DVD recording medium, the decoder unit 26 converts the read data into a CD for a CD recording medium.
If the optical disk 1 to be functioned as CD encoding means for converting to data format user data or to be reproduced is a CD recording medium, a DVD for converting the read data to user data of DVD data format for DVD recording medium. Function as encoding means.

In FIG. 1, a plurality of decoding units, that is, a CD decoding processing unit (CDDEC) 15 and a DVD
The figure shows an example of a configuration in which both decoding processing units (DVD DEC) 16 are provided. In this case, after the medium discrimination procedure is performed, the DVD decoding processing unit 16 is used by the second selector 14 when the optical disk recording medium is a CD recording medium.
In the case of a DVD recording medium, the CD decoding processing unit 15 is selected and set in advance. In some cases, the data is sent to the data controller 8 without decoding, and the data is also set in advance by the second selector 14.

The data controller 8 includes a buffer (not shown) for storing recorded or reproduced user data. At the time of reproduction, user data from the decoder unit 26 is stored, and the host interface (I /
F) Data is transmitted to the externally connected host computer 30 via the unit 17. On the other hand, during recording, the host I
User data is received from the external host computer 30 via the / F unit 17 and sent to the encoder unit 25.

The system controller block unit 24 includes:
A series of control operations are realized by issuing and controlling a control command for instructing switching of data and signal processing to each block in the data / signal control block unit 2 described above. The overall control of the optical disk recording / reproduction control device is performed. The system controller unit 20 operates by transmitting and receiving data to and from the memory unit 19 including a ROM for storing the control procedure as a program and a RAM as a work area. Next, a description will be given of the function and processing of each claim of the present invention in the optical disk recording / playback control device having the respective block configurations shown in FIG.

(1) Function and processing according to claim 1 of the present invention In the optical disk recording / reproduction control device shown in FIG. It is a signal processing unit for recording, and in addition, the encoder unit 25 of the data conversion block unit 22 is an encoding unit that performs processing different from the data format for the optical disc 1.

That is, recording data conversion means (encoding unit 25) for converting user data recorded on the recordable optical disk 1 into recording pit data having a data format different from the data format of the optical disk 1.
A recording control unit (PU) for performing recording control for writing and recording the recording pit data converted by the recording data conversion unit (encoder unit 25) on the optical disk 1 by irradiating the optical disk 1 with laser light.
3, an LD control unit 4, a PU drive unit 10, a servo unit 18, and a signal processing unit 27).

FIG. 2 is an explanatory diagram of the processing according to claim 1 of the present invention in the optical disk recording / reproduction control device shown in FIG. FIG. 1 shows the flow of data during recording in this configuration, the change in the data form accompanying the recording, and the flow of control signals due to the reflected light from the optical disk 1.
In the data flow shown in FIG. 2, first, user data is stored in the data controller 8 from the externally connected host computer 30 via the host I / F unit 17 ("S1" and "S2" in the figure). . Then, the data is converted into recording pit data by the encoder unit 25 which performs a data format process different from that of the optical disc 1 to be recorded (S
3).

Next, the signal is sent to the LD control section 4 and becomes an electric signal of a light emission pattern (S4). A laser beam is output by the optical pickup section 3 (S4) and recorded on the optical disc 1. On the other hand, in the flow of the control signal due to the reflected light from the optical disc 1, the signal processing unit 27 detects and demodulates the track signal, the focus signal, the wobble, etc. (S6).
A clock is supplied to the servo unit 18 or the LD control unit 4 (S7). At this time, the signal processing unit 27 corresponds to the optical disc 1 to be recorded. That is, the encoding unit of S3 shown in FIG. 2 performs a process different from the data format of the optical disc 1 corresponding to the signal processing.
Thus, data can be easily recorded on the optical disk 1 to be recorded in a data format different from that of the optical disk 1.

(2) Function and processing according to claim 2 of the present invention In the optical disk recording / reproduction control device shown in FIG. DVD of processing unit 12 and encoding unit 25
The encoding processing unit 6.

That is, the optical disc 1 is a recordable CD recording medium, and the recording data converting means (encoding unit 25) converts the user data into DVD data format recording pit data by the recording DVD data format conversion. Means (DVD encoding processing unit 6) by the recording control means (PU3, LD control unit 4, P
The U drive unit 10, the servo unit 18, and the signal processing unit 27) irradiate the recordable CD recording medium with a laser beam so that the recording DVD data format conversion means (D
DVD data format recording pit data recording control means (CD control signal processing unit 12) for performing recording control for writing and recording the DVD data format recording pit data converted by the VD encoding processing unit 6)
And each is provided.

In this way, DVD format data can be recorded on a recordable CD recording medium,
The recording efficiency of user data can be improved as compared with the CD format data.

(3) Function and processing according to claim 3 of the present invention In the optical disk recording / reproduction control device shown in FIG. Processing unit 13 and CD of encoding unit 25
An encoding processing unit 5.

That is, the optical disk 1 is a recordable DVD recording medium, and the recording data conversion means (encoding unit 25) converts the user data into pit data for recording in the CD data format during recording. Means (CD encoding processing unit 5)
The recording control means (PU3, LD control unit 4, PU driving unit 10, servo unit 18, signal processing unit 27) is irradiated with a laser beam onto the recordable DVD recording medium, whereby the recording CD data format is recorded. CD data format recording pit data recording control means (DVD control signal processing section 13) for performing recording control for writing and recording the recording pit data of the CD data format converted by the conversion means (CD encoding processing section 5). Each has it.

In this manner, CD format data can be recorded on a recordable DVD recording medium,
Data of a plurality of CDs can be collectively recorded on one DVD recording medium as it is.

(4) Functions and Processes According to Claims 4 and 5 of the Present Invention In the optical disk recording / reproduction control device shown in FIG. There are a plurality of encoding means for performing data conversion as different data formats, and there is a selector means for switching between them.

That is, at least two or more recording data converting means (CD encoding processing unit) for converting user data recorded on the recordable optical disk 1 into recording pit data having a data format different from the data format of the optical disk 1. 5, a DVD encoding unit 6), a selecting unit (first selector 7) for selecting any one of the recording data converting units before recording on the optical disc 1, and irradiating the optical disc 1 with a laser beam. The selection means (first selector 7)
Control means (PU3, LD control part 4, PU control part 4) for performing recording control for writing and recording the recording pit data converted by the recording data conversion means (CD encoding processing part 5 or DVD encoding processing part 6) selected by
A PU drive unit 10, a servo unit 18, and a signal processing unit 27).

Further, each of the recording data conversion means is a recording DVD data format conversion means (DVD encoding processing section 6) for converting at least the user data into recording pit data of a DVD data format, It has a recording CD data format converting means (CD encoding processing unit 5) for converting into pit data for recording in a format, and when the optical disc 1 is a recordable CD recording medium, the selecting means (first selector 7) When the recording-time DVD data format conversion means (DVD encoding processing unit 6) is selected and the optical disc 1 is a recordable DVD recording medium, the recording-time CD data format conversion means is selected by the selection means (first selector 7). (CD encoding unit 5) And a means (system controller block 24) for controlling to select.

FIG. 3 is a flow chart of a process according to claims 4 and 5 of the present invention in the optical disk recording / reproduction control device shown in FIG. The process shown in FIG. 3 is a control procedure by the system controller unit 20 set before recording. First, a media discriminating process for discriminating what kind of optical disc to record is performed ("S11" in the figure).
A known technique may be used for the method and procedure of the media discrimination processing, and a detailed description is omitted. Then, the processing means for selecting the function of the signal processing unit 27 and handling the control data is determined by setting the selector means based on the determination result (S12).

Here, when the CD control signal processing unit 12, the DVD control signal processing unit 13, and the third selector 11 are provided in the signal processing unit 27, the third selector 1
1, the CD control signal processing unit 12 is used for recording on a CD recording medium, and the DVD is used for recording on a DVD recording medium.
The control signal processing unit 13 is selected and switched. FIG.
Although the description of the processing is omitted, if the optical system needs to be switched due to a difference in the wavelength of the laser beam as in the case of the CD recording medium and the DVD recording medium, the switching setting is also performed for the optical pickup unit 3. . Note that if the signal processing means in the signal processing unit 27 is the only optical disk recording / reproduction control device, the processes in S11 and S12 need not be particularly performed.

Next, information on how to set the recording data format is obtained from the user setting (S13).
The acquisition method is the same as that of the data in the host I / F unit 17.
Or a switch is provided to the optical disk recording / reproduction control device, and the method is not limited.
Then, the first selector 7 is switched and set so as to select the encoding means that matches the information. That is,
The system controller section 20 selects the DVD encoding processing section 6 by the first selector 7 for a recordable CD recording medium, and selects the CD encoding processing section 5 by the first selector 7 for a recordable DVD recording medium. To control. The flow of data after the start of recording is the same as the processing procedure shown in FIG. 2 except that the processing by the encoding unit switched in the encoding unit 25 is performed, and thus the description is omitted.

In this way, it is possible to easily record in a plurality of data formats on one kind of optical disk. Further, DVD format data can be recorded on a recordable CD recording medium, and the recording efficiency of user data can be improved as compared with CD format data. Furthermore, C is applied to a recordable DVD recording medium.
D format data can be recorded, and data of a plurality of CDs can be collectively recorded on a single DVD recording medium.

(5) Function and processing according to claim 6 of the present invention In the optical disk recording / reproduction control device shown in FIG. The decoding unit 26 of the data conversion block unit 22 is a decoding unit that performs processing different from the data format for the optical disc 1.

That is, reproduction control means (PU3, LD control unit 4, PU drive unit 10, servo control unit) for performing reproduction control for reading and reproducing the pit data recorded on the optical disk 1 by irradiating the optical disk 1 with a laser beam. Unit 18, the signal processing unit 27) and its reproduction control means (PU
3, the LD control unit 4, the PU drive unit 10, the servo unit 18, and the signal processing unit 27) process the reproduced pit data read out as a data format different from the data format of the optical disc 1 and convert it into user data. A reproduction data conversion unit (decoding unit 26) is provided.

FIG. 4 is an explanatory diagram of the processing according to claim 6 of the present invention in the optical disk recording / reproduction control device shown in FIG. FIG. 2 shows the flow of data during reproduction in this configuration, a change in the data form accompanying the data flow, and the flow of control signals due to the reflected light from the optical disc 1.
In the data flow shown in FIG. 4, first, the reflected light of the optical disk 1 is received by the PD of the optical pickup unit 3 (“S2” in the figure).
1 ") and sends it to the signal processing unit 27 (S22), and sends the data as recording pit data to the decoding unit 26 (S22).
23). On the other hand, the track signal and the focus signal, which are control signals, are sent from the signal processing unit 27 to the servo unit 18 to control the spindle drive unit 9 and the optical pickup drive unit 10 (S26).

The signal processing section 27 at this time is processing means corresponding to the optical disk 1 to be recorded. The recording pit data thus obtained is converted into user data by a decoding unit 26 that performs a data format process different from that of the optical disc 1 to be reproduced. In other words, at the time of decoding, the user data, which is main data meaningful to the user, is extracted from the read pit data corresponding to the CD or DVD format format. Then, it is stored in the data controller unit 8 and finally the host I / O
The data is transferred to the external host computer 30 via the F unit 17. That is, the decoding unit in S23 shown in FIG.
The signal processing unit 22 performs a process different from the data format of the optical disc 1 which is supported. Thus,
For example, when the optical disk 1 on which data is recorded by the processing according to claim 1 of the present invention is reproduced, data recorded in a data format different from that of the optical disk 1 can be reproduced.

(6) Function and processing according to claim 7 of the present invention In the optical disk recording / reproducing control device shown in FIG. A DVD decoding processor 16 of the decoder unit 26;

That is, the optical disc 1 is a CD recording medium, and the reproduction control means (PU 3, LD control unit 4,
CD reproduction control means (CD control signal processing unit 12) for performing reproduction control of reading and reproducing pit data by irradiating the PU drive unit 10, the servo unit 18, and the signal processing unit 27) with laser light on the CD recording medium. The playback data conversion means (decoding unit 26) processes the playback pit data read by the CD playback control means (CD control signal processing unit 12) as a DVD data format and converts the playback pit data into user data. Data format conversion means (DVD decode processing unit 16) are provided.

As described above, in the same manner as the above-described processing according to the sixth aspect of the present invention, at the time of decoding, the read pit data is associated with the DVD format and the user data which is the main data meaningful to the user. , It becomes possible to reproduce, for example, a CD recording medium (CD disk) recorded as DVD format data by the processing according to claim 2 of the present invention.

(7) Function and processing according to claim 8 of the present invention In the optical disk recording and reproduction control device shown in FIG. The processing unit 13 and the CD decoding processing unit 15 of the decoding unit 26.

That is, the optical disk 1 is a DVD recording medium, and the reproduction control means (PU 3, LD control unit 4, PU drive unit 10, servo unit 18, signal processing unit 27)
The reproduction control for reading out and reproducing the pit data by irradiating the DVD recording medium with a laser beam is performed.
The VD playback control means (DVD control signal processing unit 13) is connected to the playback data conversion means (decoding unit 26) by the DVD
A reproduction CD data format conversion unit (CD decoding processing unit 15) for processing reproduction pit data read by the reproduction control unit (DVD control signal processing unit 13) as a CD data format and converting the data into user data; I have.

As described above, in the same manner as the above-described processing according to the sixth aspect of the present invention, at the time of decoding, the read-out recording pit data is made to correspond to the CD format format, and the user data as the main data meaningful to the user. , It becomes possible to reproduce, for example, a DVD recording medium (DVD disk) recorded as CD format data by the processing according to claim 3 of the present invention.

(8) Functions and Processing According to Claims 9 and 10 of the Present Invention In the optical disk recording / reproduction control device shown in FIG. There are a plurality of decoding means for performing decoding conversion as different data formats, and there is a selector means for switching between them.

That is, a reproduction control means (PU3, PU3) for irradiating the optical disk 1 with a laser beam to read out and reproduce pit data recorded on the optical disk 1.
The LD control unit 4, the PU drive unit 10, the servo unit 18, the signal processing unit 27) and the reproduction pit data read by the reproduction control means are processed as data formats different from the data format of the optical disc 1, respectively. At least two or more playback data conversion means (DVD decoding processing unit 16 and CD decoding processing unit 15) for converting the data into user data, and one of the playback data conversion means is selected before playing the optical disc 1. A selection means (second selector 14) is provided.

Further, each of the reproduction data conversion means processes at least the reproduction pit data as a DVD data format and converts the data into user data.
Data format conversion means (DVD decode processing unit 1)
6) and a reproducing CD data format converting means (CD decoding processing unit 15) for processing the reproduced pit data as a CD data format and converting it into user data.
When the optical disc 1 is a CD recording medium,
The selecting means (second selector 14) selects the DVD data format converting means for reproduction (DVD decoding processing unit 16), and when the optical disk 1 is a DVD recording medium, the selecting means (second selector 14) CD data format conversion means (CD
A means (system controller block unit 24) for controlling to select the decode processing unit 15) is provided.

FIG. 5 is a flowchart of a process according to the ninth and tenth aspects of the present invention in the optical disk recording / reproduction control device shown in FIG. The process shown in FIG. 5 is a control procedure by the system controller unit 20 set before reproduction. First, a media discriminating process for discriminating the type of the optical disc to be reproduced is performed (“S3” in the figure).
1 "). A known technique may be used for the method and procedure of the media discrimination processing, and a detailed description thereof will be omitted. Then, based on the discrimination result, the function of the signal processing unit 27 is selected, and the processing unit that handles the control data is determined by setting the selector means (S32). Here, when the CD control signal processing unit 12, the DVD control signal processing unit 13, and the third selector 11 are provided in the signal processing unit 27, when the third selector 11 reproduces a CD recording medium based on the determination result, The CD control signal processing unit 12 is set to DV when reproducing a DVD recording medium.
The D control signal processing unit 13 is selected and switched.

Although the description of the processing is omitted in FIG. 5,
If the optical system needs to be switched due to a difference in the wavelength of the laser light, such as a CD recording medium and a DVD recording medium, the switching setting is also performed on the optical pickup unit 3. If the signal processor 27 has only one processing means, the optical disk recording / reproducing control device does not need to perform the processes of S31 and S32. Next, information on how to handle the recording data format is obtained from the user setting (S33). The data may be acquired from the host I / F unit 17 in the same manner as the data, or a switch may be provided to the optical disk recording / reproduction control device.

Then, the second selector 14 is switched and set so as to select the decoding means matching the information. In other words, the system controller 20 selects the DVD decode processing unit 16 by the second selector 14 for a recordable CD recording medium, and the CD decode processing unit 15 by the second selector 14 for a recordable DVD recording medium. Control to select. The data flow after the start of reproduction is the same as that of FIG.
Since the processing procedure is the same as that described above, the description is omitted.

As described above, in the same manner as the above-described processing according to claim 6 of the present invention, at the time of decoding, the read pit data is the main data meaningful to the user in accordance with the CD or DVD format. By extracting the user data, for example, it is possible to reproduce the optical disc recorded by the processing according to claim 4 of the present invention in a data format different from the conventional one. In addition, DVD format data recorded on a recordable CD recording medium can be reproduced,
CD format data recorded on a recordable DVD recording medium can be reproduced.

(9) Function and processing according to claim 11 of the present invention In the optical disk recording / reproduction control device shown in FIG.
The control signal processing block unit 21 having means for reproducing one optical disk for one optical disk and the control signal processing block unit 21 having means for recording another optical disk are combined. In the configuration according to the ninth aspect, at the time of reproduction, a selection not to use any decoding means is further performed by the second selector 14 shown in FIG. 1, and in the configuration according to the fourth aspect of the present invention, when the recording is performed, Further, a selection is made by the first selector 7 shown in FIG. 1 not to use any encoding means.

That is, at least two or more recording data converting means (CD encoding processing unit) for converting user data recorded on the recordable optical disk 1 into recording pit data having a data format different from the data format of the optical disk 1. 5, a DVD encoding unit 6), first selecting means (first selector 7) for selecting any one of the recording data converting means before recording on the optical disc 1, and laser light on the optical disc 1. Reproduction control means (PU3, LD control unit 4, PU drive unit 10, servo unit 18, signal processing unit 27) for performing reproduction control for reading and reproducing the pit data recorded on the optical disk 1 by irradiating the optical disk 1; The reproduction control means (PU3, LD control unit 4, PU drive unit 10, servo unit 1)
8, the signal processing unit 27) processes at least two or more reproduction data conversion means (DVD decoding processing) for processing the reproduction pit data as data formats different from the data format of the optical disc 1 and converting the data into user data. Unit 16 and a CD decode processing unit 15), and a second selecting unit (one of the above-mentioned reproduced data converting means (DVD decode processing unit 16 and CD decode processing unit 15) for selecting one of the reproduced data before reproducing the optical disc 1. A second selector 14), recording control by the recording control means (PU3, LD control unit 4, PU drive unit 10, servo unit 18, signal processing unit 27) on one of two different optical disks, and reproduction control on the other. Means (PU3, LD control unit 4, PU drive unit 10, servo unit 18, signal processing unit 27)
And the recording / reproducing control means for simultaneously realizing the reproduction control by the control means and the first selecting means (first selector 7) so as not to select any of the recording data converting means,
Means are provided for controlling the second selection means (second selector 14) so as not to select any of the reproduction data conversion means.

In this way, the recorded pit data is sent to the data controller 8 as it is without performing the processing of the data at the time of reproduction by the decoding unit in S23 shown in FIG. On the other hand, in the data flow during recording, the user data is sent to the LD control unit 4 as recording pit data as it is without performing the processing by the encoding unit in S3 shown in FIG. Therefore, for example, a CD recording medium on which DVD format data is recorded by the processing according to claim 2 of the present invention is reproduced, and recording on the DVD recording medium is performed without performing processing by the encoding unit and the decoding unit. Copying from media in a data format to the media in that data format can be realized quickly and easily.

By using the function according to claim 1 of the present invention, the optical disk recording / reproducing control device of this embodiment can perform different data format recording independent of an optical disk on which data is recorded by an encoder for performing data conversion. Therefore, data recording in various formats can be easily performed. Also, by using the function according to claim 2 of the present invention, a recordable CD
DVD format data can be recorded on a recording medium, and the recording efficiency of user data can be improved as compared with conventional CD format data. Furthermore, by using the function according to claim 3 of the present invention, data in CD format can be recorded on a recordable DVD recording medium, and a plurality of CDs can be recorded on one DVD recording medium. Format data can be collectively recorded as it is.

Further, by using the functions according to claims 4 and 5 of the present invention, a user can select a desired encoding means, and it is possible to easily record a plurality of data formats on one kind of optical disc. Become. further,
By using the function according to claim 6 of the present invention,
Like an optical disk to be reproduced by the processing according to the first aspect of the present invention, data recorded in a data format different from that of the optical disk can be easily reproduced. Further, by using the function according to claim 7 of the present invention, it becomes possible to reproduce a CD disk recorded as DVD format data realized by the processing according to claim 2 of the present invention.

Further, by using the function according to claim 8 of the present invention, it becomes possible to reproduce a DVD disk recorded as CD format data realized by the processing according to claim 3 of the present invention. . Further, by using the functions according to the ninth and tenth aspects of the present invention, it is possible to reproduce data in a different data format such as an optical disk recorded by the processing according to the fourth aspect of the present invention. Further, by using the function according to claim 11 of the present invention, a DVD
While reproducing the CD recording medium on which the format data is recorded, the recording can be performed on the DVD recording medium by passing through the encoding unit and the decoding unit, and the data can be copied from the medium having a different data format to the medium having the different data format. It can be realized at high speed and easily.

[0068]

As described above, according to the optical disk recording apparatus, the optical disk reproducing apparatus, and the optical disk recording / reproducing apparatus of the present invention, a recording CD medium and a large-capacity recording DVD medium which are widely used in the world. Etc. can be used in a wider range.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an optical disk recording / reproduction control device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a process according to claim 1 of the present invention in the optical disk recording / reproduction control device shown in FIG. 1;

FIG. 3 is a flowchart of a process according to claims 4 and 5 of the present invention in the optical disk recording / reproduction control device shown in FIG. 1;

FIG. 4 is an explanatory diagram of a process according to claim 6 of the present invention in the optical disc recording / reproduction control device shown in FIG. 1;

FIG. 5 is a flowchart of a process according to the ninth and tenth aspects of the present invention in the optical disk recording / reproduction control device shown in FIG. 1;

[Explanation of symbols]

1: optical disk 2: data / signal control block unit 3: optical pickup unit (PU) 4: LD control unit 5: CD encoding processing unit (CD ENC) 6: DVD encoding processing unit (DVD ENC) 7: first selector 8 : Data controller 9: Spindle driver 10: Optical pickup (PU) driver 11: Third selector 12: CD control signal processor 13: DVD control signal processor 14: Second selector 15: CD decode processor (CD) DEC) 16: DVD decode processing unit (DVD DEC) 17: Host interface (I / F) unit 18: Servo unit 19: Memory unit 20: System controller unit 21: Control signal processing block unit 22: Data conversion block unit 23: Data management block unit 24: System controller block unit 25: Enco Loading section 26: decoding section 27: signal processing section 30: host computer

Claims (11)

[Claims] 1. A recording data conversion means for converting user data to be recorded on a recordable optical disk recording medium into recording pit data having a data format different from the data format of the optical disk recording medium; An optical disc recording apparatus, comprising: recording control means for performing recording control for writing and recording the recording pit data converted by the recording data conversion means by irradiating the recording pit data on the optical disc recording medium. 2. The optical disk recording apparatus according to claim 1, wherein the optical disk recording medium is a recordable CD recording medium, and the recording data conversion means converts the user data into recording pit data in a DVD data format. The recording DVD data format conversion means irradiates a laser beam to the recordable CD recording medium to the recording control means to convert the recording pit data of the DVD data format converted by the recording DVD data format conversion means. An optical disc recording apparatus, comprising: a DVD data format recording pit data recording control means for performing recording control for writing and recording. 3. The optical disk recording apparatus according to claim 1, wherein said optical disk recording medium is a recordable DVD recording medium, and said recording data converting means converts said user data into recording pit data in a CD data format. The recording-time CD data format conversion means irradiates a laser beam to the recordable DVD recording medium to the recording control means to convert the recording pit data of the CD data format converted by the recording-time CD data format conversion means. An optical disc recording apparatus, further comprising pit data recording control means for recording a CD data format for performing recording control for writing and recording. 4. At least two or more recording data conversion means for converting user data to be recorded on a recordable optical disk recording medium into recording pit data having a data format different from the data format of the optical disk recording medium, Selecting means for selecting any one of the recording data converting means before recording on the optical disc recording medium; and recording data converting means selected by the selecting means by irradiating the optical disc recording medium with laser light. An optical disc recording apparatus comprising: recording control means for performing recording control for writing and recording the converted recording pit data. 5. The optical disc recording apparatus according to claim 4, wherein each of the recording data converting means converts at least the user data into recording pit data of a DVD data format, and a recording DVD data format converting means.
A recording-time CD data format converting means for converting the user data into recording pit data of a CD data format; and when the optical disk recording medium is a recordable CD recording medium, the selecting means selects the recording-time DVD data. An optical disc provided with means for selecting a format converting means and controlling the selecting means to select the recording-time CD data format converting means when the optical disc recording medium is a recordable DVD recording medium; Recording device. 6. A reproduction control means for performing reproduction control for reading out and reproducing pit data recorded on the optical disk recording medium by irradiating the optical disk recording medium with a laser beam, and reproducing the data read by the reproduction control means. An optical disc reproducing apparatus, comprising: reproduced data conversion means for processing pit data as a data format different from the data format of the optical disc recording medium and converting the data into user data. 7. The optical disk reproducing apparatus according to claim 6, wherein the optical disk recording medium is a CD recording medium, and pit data is read and reproduced by irradiating the reproduction control means with a laser beam on the CD recording medium. CD playback control means for performing playback control, wherein the playback data conversion means processes playback pit data read by the CD playback control means as a DVD data format and converts the data into user data.
An optical disc reproducing apparatus provided with VD data format conversion means. 8. The optical disk reproducing apparatus according to claim 6, wherein the optical disk recording medium is a DVD recording medium, and pit data is read out and reproduced by irradiating the reproduction control means with a laser beam on the DVD recording medium. DVD playback control means for performing playback control, wherein the playback data conversion means processes playback pit data read by the DVD playback control means as a CD data format and converts the data into user data.
An optical disc reproducing apparatus provided with D data format conversion means. 9. A reproduction control means for irradiating a laser beam onto an optical disk recording medium to read and reproduce pit data recorded on the optical disk recording medium, and a reproduction pit read by the reproduction control means. At least two or more reproduction data conversion means for processing data as a data format different from the data format of the optical disc recording medium and converting the data into user data; and An optical disc reproducing device comprising: a selection unit for selecting any one of them. 10. The optical disk playback apparatus according to claim 9, wherein each of the playback data conversion means processes at least the playback pit data as a DVD data format and converts the data into user data. A playback CD that processes playback pit data as a CD data format and converts it to user data
Data format converting means, wherein when the optical disk recording medium is a CD recording medium, the selecting means selects the DVD data format converting means during reproduction, and the optical disk recording medium is a DVD
An optical disc reproducing apparatus comprising: means for controlling the selecting means to select the reproducing CD data format converting means when the medium is a recording medium. 11. At least two or more recording data conversion means for converting user data recorded on a recordable optical disk recording medium into recording pit data having a data format different from a data format of the optical disk recording medium, First selecting means for selecting any one of the recording data converting means before recording on the optical disc recording medium; and pit data recorded on the optical disc recording medium by irradiating the optical disc recording medium with laser light. A playback control means for performing playback control for reading and playing back, and at least converting the playback pit data read out by the playback control means into a data format different from the data format of the optical disc recording medium and converting the data into user data. Conversion of two or more playback data Means and second selecting means for selecting any one of the reproduced data converting means before reproducing the optical disc recording medium; recording control by the recording control means on one of two different optical disc recording media; A recording / reproduction control means for simultaneously realizing the reproduction control by the reproduction control means; and the first selection means not selecting any of the recording data conversion means, and the second selection means An optical disk recording / reproducing apparatus comprising: means for controlling each of the reproduction data conversion means so as not to select any of them.