JP3244673B2 - Dubbing device for optical disks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dubbing apparatus for recording a signal reproduced on a recording medium on an optical disk, and more particularly to dubbing on an optical disk capable of automatically recording additional information of each music on the optical disk. Related to the device.

[0002]

2. Description of the Related Art A mini disk (MD) is known as an optical disk on which a user can record. In the mini disc, a recordable area is provided outside the pit information recording area on the inner peripheral side. The recordable area has a user's stock area (U-TOC) and a program area. Instead of having pits, a groove (groove) for guiding a track is dug, and information is recorded along this groove. I do.

A groove undulates in a waveform, and the average frequency of a signal generated by the undulation (wobble) is 22.
The rotation of the disk is controlled to be 05 kHz.
Further, an absolute address from the recording start position is FM-modulated and recorded in the wobble.

[0004] Recording is performed by magnetization of a magnetic film. That is, the magnetic film is heated to a point above the Curie point by a laser spot, and a magnetic field that reverses according to a signal is applied thereto.
Upon cooling, a signal is recorded on the magnetic film as a change in magnetization direction. Such recording can also be performed on a part that has already been recorded. That is, overwriting (overwriting) is possible.

[0005] The management of the recording position is performed by the information recorded in the U-TOC. In the recording of the program area, a track number (TNO) is assigned as a continuous natural number starting from 1 for each song, and information such as a start address, an end address, and a title is recorded for each TNO. When the TNO and its associated information are deleted from the U-TOC, that part is treated as an unrecorded part.

When a disc is loaded into the apparatus, U
-The TOC information is read and the data is stored in the RAM of the device.
, And thereafter stored in the RAM
Management of recording and reproduction is performed by the OC information. When each song is recorded or erased, the stored contents of the RAM are changed, and the stored information is recorded in the U-TOC of the disk before the disk is removed from the device.

[0007] Erasing an arbitrary song recorded on such a mini-disc requires an arbitrary TNO by operating a key.
Is displayed, and pressing the erase key removes the TNO information from the U-TOC information.

[0008]

To dub the recorded content of the optical disk onto the mini disk as described above, the audio signal output terminal of the optical disk is connected to the audio signal input terminal of the mini disk recording / reproducing apparatus to connect the optical disk. Although it is possible to record the mini-disc while reproducing it, additional information such as the title of each track of the optical disc is not recorded because it is not included in the audio signal.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a dubbing apparatus for an optical disk which automatically records additional information of each music on the optical disk. .

[0010]

According to the present invention, there is provided an apparatus for dubbing an optical disk, comprising: an optical disk reproducing apparatus for reproducing an optical disk having a start address, an end address and additional information of each music recorded in a stock area; In addition, a digital audio signal output terminal and a digital audio signal input terminal of an optical disk recording device for recording the start address, end address and additional information of the song in the stock area are connected, and the optical disk reproducing device is controlled. The first microcomputer and a second microcomputer for controlling the optical disc recording apparatus are connected by a digital communication line, and a predetermined music piece is reproduced and recorded on the optical disc by outputting a digital audio signal. Watch for track number changes and track number changes When this is detected, additional information other than the subcode information of the predetermined music is received from the first microcomputer and the data is stored in the RAM, and after the recording of the digital audio signal is completed, in addition to the start address and the end address, The additional information other than the subcode information of each music stored in the RAM is recorded in a stock area of the optical disc.

[0011]

According to the dubbing apparatus of the present invention for dubbing the additional information of each music piece on the optical disk, the reproduction track is changed from the subcode contained in the digital audio signal sent from the optical disk reproducing apparatus. When the microcomputer detects, a command for transmitting additional information is sent from the second microcomputer to the first microcomputer. Upon receiving the command, the first computer reads out the additional information of the previously reproduced track number from the RAM storing the stock information and transmits it to the second microcomputer.

When the second microcomputer receives the additional information of the previously recorded tune, it stores the data in the RAM in association with the track number. The additional information of each song recorded in this way is stored in the RA together with the track number.
M, and the additional information is recorded in the stock area of the optical disk before the optical disk is ejected from the optical disk recording device.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1 (a), a reproduction mini-disc recording / reproduction device and a recording mini-disc recording / reproduction device are connected to a digital audio signal transmission line 5.
And a serial communication line 6 to form a dubbing device.

As shown in FIG. 1B, a mini disc recording / reproducing apparatus for reproduction includes a microcomputer 1 for MD control, an MD system 2, a key input device 3, and a display device 4.
It is composed of

The MD system 2 is a mini disk (MD)
MD mechanism for performing mechanical processing and reading and writing of signals, a servo system, a signal processing device, a shock-proof memory, a D / A converter, an A / D converter, and the like. It also communicates minidisk address and subcode signals with it.

The MD control microcomputer 1 is controlled by an operation key input device 3 and outputs a signal to be displayed on a display device 4 in the same manner as a normal MD control microcomputer. 6 and outputs data to the serial communication line 6.

The recording mini disc recording / reproducing apparatus is an MD.
It comprises a control microcomputer 7, an MD system 8, a key input device 9, and a display device 10.

The MD system 8 is a mini disk (MD)
MD mechanism, a servo system, a signal processing device, a shock-proof memory, a D / A converter, an A / D converter, etc., which perform mechanical processing and read / write of signals. It also communicates minidisk address and subcode signals with it.

The MD control microcomputer 7 is controlled by the key input device 9 and outputs a signal to be displayed on the display device 10. The microcomputer 7 further issues a command to the serial communication line 6, and outputs a signal from the serial communication line 6. Enter the data.

As shown in FIG. 1A, the key input device 9 includes a dubbing key 9a, a program / record key 9b, and a numeric keypad 9c.

The digital audio signal output terminal of the MD system 2 is connected to the digital audio signal input terminal of the MD system 8, and the audio signal reproduced from the MD disk mounted on the MD system 2 is mounted on the MD system 8. MD
Recorded on the disc.

Next, the dubbing operation of this apparatus will be described with reference to FIG. First, in step S1, the program record key 9b is pressed to set the program record mode. In the program record mode, the track numbers and order of the mini-discs to be reproduced by the MD system 2 can be set by pressing the numeric key 9c. When the setting is completed, the dubbing is started by pressing the dubbing key 9a and step S
2 is performed.

In step S2, a command is issued from the MD control microcomputer 7 to the MD control microcomputer 1 to reproduce the first music set in the program record, and the digital audio signal input to the MD system 8 is transmitted to the TN01. To be recorded. Thus, in step S3, dubbing of the first song is started.

Next, in step S4, the change of TNO is monitored by the Q code included in the digital audio signal, and when it is detected that the TNO has been updated, the process proceeds to step S5. In step S5, the MD control microcomputer 7 instructs the MD control microcomputer 1 to send additional information such as the title of the previously played TNO music, and the MD control microcomputer 7 receives the information and stores the U- It is stored in the TOC information storage RAM.

Next, in step S6, it is determined whether or not the last song has been completed.
Then, the MD systems 2 and 8 are stopped to end the dubbing operation.

If the last song is not completed, step S
7, the MD control microcomputer 7 issues a command to the MD control microcomputer 1 to reproduce the next music set in the program record, and outputs the digital audio signal input to the MD system 8 to TN0.
Command to record as 2. In this way, in step S8, dubbing of the next song is started, and step S4 is repeated.

Although this embodiment is constructed as described above, the invention is not limited to this. For example, a mini disc recording / reproducing apparatus for reproduction and a mini disc recording / reproducing apparatus for recording are housed in the same housing. May be.

Next, a description will be given of an apparatus for dubbing an optical disk according to a first embodiment of the present invention. As shown in FIG. 3A, a dubbing device is configured by connecting a CD player and a mini-disc recording / reproducing device via a digital audio signal transmission line 5 and a serial communication line 6.

As shown in FIG. 3B, the CD player comprises a microcomputer 11 for controlling a CD, a CD system 1
2. It is composed of a key input device 13 and a display device 14.

The CD control microcomputer 11 is controlled by an operation key input device 13 in the same manner as a normal CD system control microcomputer, and outputs a signal to be displayed on a display device 14. It receives a command from the line 6 and outputs data to the serial communication line 6.

The CD system 12 performs mechanical processing of a compact disk (CD) and reading of signals from the CD.
It includes a mechanism, a servo system, a signal processing device, a D / A converter, an A / D converter, and the like, and is controlled by the control microcomputer 11, and communicates with it the CD address and subcode signals.

The mini disc recording / reproducing apparatus has basically the same configuration as that of the embodiment, but the key input device 9 includes a delete key 9d, an up key 9f and a down key 9e.

The digital audio signal output terminal of the CD system 12 is connected to the digital audio signal input terminal of the MD system 8, and the audio signal reproduced from the CD disk mounted on the CD system 12 is mounted on the MD system 8. Recorded on the MD disc.

Next, the dubbing operation of this apparatus will be described with reference to FIG. First, in step S1, the dubbing key 9
By pressing a, the MD control microcomputer 7
, The CD control microcomputer 11 is instructed to reproduce the first music, and the digital audio signal inputted to the MD system 8 is recorded, and dubbing is started.

Next, in step S2, the MD control microcomputer 7 determines whether or not there is no unrecorded portion of the mini disk from the recording address and the contents of the RAM storing the U-TOC information. If the recorded portion remains, the process proceeds to step S9 to determine whether the CD reproduction has stopped. If the CD has not stopped, step S2 is repeated. If the CD has stopped, the process shifts to step S10 to stop the MD system and end the dubbing.

If it is determined in step S2 that no unrecorded portion remains, the process proceeds to step S3. In step S3, the MD control microcomputer 7 first puts the MD system 8 into the recording pause state, designates the data position at which the recording pause was made to the CD control microcomputer 11 by the sent Q code, and sets the reproduction pause state at that position. Is sent. Also, “FU” is displayed on the display device 10.
LL "is displayed to inform the user.

Next, in step S4, the user designates the TNO of the unnecessary tune that has been recorded using the up key 9f, the down key 9e, and the numeric keypad 9c, and presses the delete key 9d to delete the tune. When TNO is designated, the time and the title of the song are displayed, and it can be determined whether or not to delete.

Next, at step S5, the recordable time is displayed on the display device 10, and at step 6, the user determines the recordable time. Then C
The D system 12 starts playback from the position where the playback was interrupted,
The MD system 8 searches for an unrecorded portion and starts recording. The link state between the address at which the recording was interrupted and the address at which the recording was started is determined by the RAM storing the U-TOC information.
Is stored.

If the user determines in step 6 that the available recording time is not sufficient, step S4 and subsequent steps are repeated.

Although this reference example is constructed as described above, for example, a CD player and a mini-disc recording / reproducing device may be housed in the same housing, and a mini-disc recording may be performed instead of the CD player. A playback device can also be used. Also, instead of the user determining the recordable time, a CD
The dubbing may be automatically started by transmitting the remaining reproduction time from the player and causing the MD control microcomputer 7 to make a determination.

Next, an apparatus for dubbing an optical disk according to a second embodiment of the present invention will be described. The configuration of the dubbing apparatus of this embodiment is shown in FIG. 5, but is basically the same as that of the first embodiment. However, the key input device 9 includes a program record key 9b.

Next, the dubbing operation of this apparatus will be described with reference to FIG. First, the TNO assigned to the mini-disc is specified for the order of the songs to be dubbed. By specifying the program record key 9b and then pressing the numeric key 9c, the TNO assigned to the mini-disc is specified one after another.

Next, in step S1, the CD player starts reproduction from TNO1 by pressing the dubbing key 9a, and the MD system 8 enters the dubbing state by recording the input digital audio signal.

Next, in step S2, TN is detected by detecting a subcode contained in the digital audio signal.
It monitors whether O has been updated. If the TNO has been updated, the process goes to step S3 to update the TNO of the mini disk, but the TNO is updated in the order set by the program record key. If the order of TNO is not set by the program record key, TNO is updated to the order of natural numbers.

Next, in step S4, it is determined whether or not the reproduction has been completed. If the reproduction has been completed, the process proceeds to step S5, in which the MD system 8 is stopped to end the dubbing.
If the reproduction has not been completed, step S2 and subsequent steps are repeated.

Thus, for example, the order of TNOs set by the program record key is 3, 4, 2,
If it is 1,5, the TNO of the compact disk of the playback source
The songs of 1,2,3,4,5 are TNO4,3,1,2,
5 and are reproduced in the order of TNO in the normal reproduction, so that the music is reproduced in the order of the favorite music.

Although this reference example is configured as described above, for example, a DAT, a cassette recorder, a mini-disc recording / reproducing device, or the like can be used as a source device instead of a CD player. In the case of a cassette recorder, an analog audio signal is used. In this case, the level of the audio signal may be monitored, and the TNO may be updated when the level becomes equal to or higher than a predetermined level after a state of equal to or lower than a predetermined level continues for a predetermined period.

[0048]

According to the apparatus for dubbing an optical disc of the present invention, additional information of each music can be automatically recorded on the optical disc.

[Brief description of the drawings]

FIG. 1A is an external view showing an apparatus for dubbing an optical disc according to an embodiment of the present invention, and FIG. 1B is a block diagram showing the dubbing apparatus.

FIG. 2 is a flowchart showing the operation of the dubbing device.

FIG. 3A is an external view showing a device for dubbing an optical disc according to a first embodiment of the present invention, and FIG. 3B is a block diagram showing the device for dubbing;

FIG. 4 is a flowchart showing an operation of the dubbing device.

FIG. 5A is an external view showing a device for dubbing an optical disc according to a second embodiment of the present invention, and FIG. 5B is a block diagram showing the device for dubbing;

FIG. 6 is a flowchart showing the operation of the dubbing device.

[Description of Signs] 1 MD control microcomputer 2 MD system 3 Key input device 4 Display device 5 Digital audio signal transmission line 6 Serial communication line 7 MD control microcomputer 8 MD system 9 Key input device 10 Display device 11 CD control Microcomputer 12 CD system 13 Key input device 14 Display device

Continued on the front page (51) Int.Cl. ⁷ Identification code FI G11B 27/00 D 27/02 K

Claims (1)

(57) [Claims] 1. An optical disc reproducing apparatus for reproducing an optical disk in which a start address, an end address and additional information of each song are recorded in a stock area, a start address, an end address and additional information of the song in addition to data of each song. A first microcomputer for controlling the optical disk reproducing device and a second microcomputer for controlling the optical disk recording device, by connecting respective digital audio signal output terminals and digital audio signal input terminals of the optical disk recording device for recording in the stock area. The microcomputer was connected to the microcomputer by a digital communication line, a predetermined music was reproduced and recorded on an optical disk by outputting a digital audio signal, and the second microcomputer monitored the change of the track number, and the track number was changed. Is added, except for the sub-code information of the specified song Information is received from the first microcomputer, and the data is stored in the RAM. After recording of the digital audio signal is completed, in addition to the start address and the end address, additional information other than the subcode information of each music stored in the RAM. Device for dubbing to an optical disc configured to record the data in a stock area of the optical disc.