JP2002298555A - Optical disk recording/reproduction device and optical disk recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disk recording/reproduction device capable of playing a tune without making operation for setting program playing and setting volume and sound quality complicated, and an optical disk recording medium. SOLUTION: This optical disk recording/reproduction device 10 can play a tune on the basis of playing information if the playing information is read from an optical disk 12 again even thought the playing information stored in a memory in the optical disk recorder/player is erased because tune order information in program playing in a tune playing mode and the playing information such as the volume information and sound quality information of each tune are recorded in the disk title area of a title recording area of the optical disk 12 and in the track title area of each tune. Also, since the playing information is recorded in the optical disk 12, the playing information can be recorded without being limited by the upper limit of a memory capacity in the optical disk recorder/player 10 and also without increasing the memory capacity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk recording / reproducing apparatus and an optical disk recording medium, and more particularly to a technique of recording and reproducing music reproduction information.

[0002]

2. Description of the Related Art Conventionally, in an optical disk reproducing apparatus for reproducing an optical disk on which music data and the like are recorded, there is a program reproduction as a method for reproducing the recorded music data. In the program reproduction, a user (a user of the optical disk reproducing apparatus) arbitrarily sets a music order of music data for each music recorded on an optical disc, and performs reproduction in accordance with the music order. More specifically, the user operates a key or the like of the optical disc reproducing apparatus in advance to store the index information (song number) of the music to be reproduced in a memory in the optical disc reproducing apparatus in order to reproduce the program. Let it. When the program reproduction is set, the reproduction is performed in accordance with the music order stored in the memory.

[0003] On the other hand, a user listens to a song reproduced by the optical disc reproducing apparatus and adjusts the volume and sound quality of the song. In addition, the user sometimes adjusts the volume and the sound quality as needed each time the recording level such as the volume level and the sound quality level recorded for each music is different.

[0004]

However, the conventional optical disk reproducing apparatus has the following problems. First, in the program reproduction in the optical disk reproducing apparatus, since the music order set by the user is stored in the memory, when the optical disk reproducing apparatus is taken out of the optical disk, the optical disk reproducing apparatus is powered off, In some cases, such as when the power of the playback device falls below a predetermined value, the order of the songs stored in the memory may be erased. In such a case, the program playback cannot be performed unless the user sets the music order again, so that there is a problem that the operation associated with the program playback setting becomes complicated.

If the music order stored in the memory is a memory that is not erased even in the above case, it is not necessary to reset the program reproduction. However, as the number of optical discs for program reproduction increases, the order of music stored in the memory increases. Therefore, since the storage capacity of the memory of the optical disc reproducing apparatus has an upper limit, the order of music desired by the user cannot be stored in the memory,
New problems such as an increase in cost due to an increase in memory capacity occur.

[0006] On the other hand, when a plurality of songs having different recording levels are recorded on the same optical disc, for example, when rock music is recorded after classical music, and the like, the user must change the volume and sound quality every time the song is switched. Has to be set again, and the setting operation becomes complicated.

The present invention has been made in view of such circumstances, and an optical disk recording / reproducing apparatus and an optical disk capable of reproducing music without complicated operations for setting program reproduction and setting volume and sound quality. It is intended to provide a recording medium.

[0008]

An optical disk recording / reproducing apparatus according to the present invention for achieving the above object has a setting section for setting reproduction information of a song, and the reproduction information set by the setting section is provided as a title of an optical disk. A recording unit for recording in a recording area, a reading unit for reading the reproduction information from the title recording area on which the reproduction information is recorded, and a reproduction for reproducing the music based on the reproduction information read from the reading unit And a unit.

According to this optical disk recording / reproducing apparatus, it is possible to record the reproduction information of the music and to reproduce the music based on the reproduction information. Further, since the reproduction information is recorded on the optical disk, even if the reproduction information in the memory is erased, the music can be reproduced based on the reproduction information by reading the reproduction information again from the optical disk. Also, since the reproduction information is recorded on the optical disk, the reproduction information can be recorded without being limited by the upper limit of the memory capacity in the optical disk recording / reproducing apparatus and without increasing the memory capacity. Further, since the reproduction information is recorded in the title recording area of the optical disk, the reproduction information can be recorded on the optical disk without changing the basic recording format of the optical disk.

The optical disk recording / reproducing apparatus of the present invention has a detecting unit for detecting that the music being reproduced has been switched,
The reading unit reads the reproduction information from the title recording area corresponding to the switched song based on a detection result by the detection unit, and the reproduction unit reads the reproduction information read from the reading unit. The music is reproduced based on the music.

According to this optical disk recording / reproducing apparatus, even if the recording levels of the songs are different when the songs are switched, the reproduction information is read out each time and reproduced by the reproduction information. For example,
The user does not need to reset the volume and sound quality, and the setting does not become complicated.

In the optical disk recording / reproducing apparatus of the present invention, the reproduction information includes reproduction order information of the music, volume information,
It is characterized by having at least one of the sound quality information.

According to this optical disk recording / reproducing apparatus, when the reproduction information is reproduction order information, reproduction is performed based on the reproduction order information, and when the reproduction information is volume information,
The reproduction based on the volume information is performed, and when the reproduction information is the sound quality information, the reproduction based on the sound quality information is performed. Therefore, the user does not need to reset the reproduction order, volume, sound quality, and the like, and the setting does not become complicated.

The optical disk recording medium of the present invention is characterized in that music reproduction information is recorded in a title recording area.

According to this optical disk recording medium, since the reproduction information of the music is recorded, the music can be reproduced based on the reproduction information.

The optical disk recording medium of the present invention is characterized in that the optical disk recording medium has at least one of the reproduction order information of the music, volume information and sound quality information.

According to this optical disk recording medium, when the reproduction information is the reproduction order information, the reproduction based on the reproduction order information is performed, and when the reproduction information is the volume information, the reproduction based on the volume information is performed. If the reproduction information is sound quality information, reproduction based on the sound quality information can be performed.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an optical disk recording / reproducing apparatus according to the present invention will be described with reference to the drawings.
First, a configuration of an optical disk recording / reproducing apparatus common to the embodiments will be described with reference to FIGS. FIG. 1 is a data configuration diagram showing a data configuration of user TOC information, and FIG. 2 is a block configuration diagram showing a configuration of an optical disk recording / reproducing apparatus of the present invention. The optical disk recording medium is, for example, an MD (Mini Disk: Mini Disc :) of a recordable and reproducible magneto-optical disk housed in a cartridge.
(Registered trademark).

The optical disk 12 stores music data and TOC
(Table Of Contents) information is recorded, and the optical disc 12
Where the music data is recorded can be determined. The TOC information includes an address of the user TOC information for managing the recorded music data, so that the user TOC information can be referred to. The setting of the user TOC information can be changed by the user.

As shown in FIG. 1, the user TOC information has a specified bit pattern header at the beginning thereof.
The data structure is such that a data area follows the header. Further, there is a title recording area in the data area, the disc title of the optical disc 12 is recorded as text data in the disc title area at byte position 76, and the track title is written in the track title area at byte position 78 and below. Recorded as data. The user can arbitrarily set the disc title of the disc title area of the title recording area and the track title of the track title area.

Next, the configuration of the optical disk recording / reproducing apparatus 10 will be described. The optical disc control unit 14 of the optical disc recording / reproducing apparatus 10 controls the drive of the optical disc 12 based on the signal read from the optical disc 12, reads out music data and data such as reproduction information to be described later, and outputs the data to an external output or control unit 16. And performs operations for recording and reproduction such as writing data to an optical disk. The optical disk control unit 14 and the control unit 16 have functions corresponding to the recording unit, the reading unit, the reproducing unit, and the detecting unit described in the claims.

The control unit 16 controls the optical disc recording / reproducing apparatus 1
Monitors and controls each component unit within 0,
It has a memory 18. The control unit 16 monitors a key input from an operation unit 20 (corresponding to a setting unit described in claims) including numeric keys and various function keys, controls the optical disk control unit 14, and displays the optical disk 12 on the display unit 22.
The recorded information and the recording / reproducing state are displayed. The memory 18 is a storage unit that stores the reproduction information, and is, for example, a storage element such as a RAM. still,
The memory 18 is configured inside the control unit 16 in the present embodiment, but may be provided outside the control unit 16 as a matter of course.

The reproduction information is recorded in the title recording area of the optical disc 12, and for example, reproduction order information (song order information) for setting the reproduction order of the songs at the time of program reproduction, and for setting the reproduction volume. And sound quality information for setting the reproduction sound quality.
Note that the sound quality information is information for so-called equalizing for adjusting a gain corresponding to a bass or treble or a predetermined frequency.

Also, the reproduction information is, in addition to these information,
It may include information on other setting items related to the reproduction of the music. For example, pitch information for changing the reproduction speed (reproduction pitch) of the music, or karaoke information for attenuating the audio band of the music and setting the karaoke mode may be used.

When the optical disk 12 is reproduced, the reproduction information is transmitted by an instruction from the control unit 16 to the optical disk control unit 14.
The data is read from the optical disk 12 via the storage device and stored in the memory 18. Then, the control unit 16 performs a predetermined reproduction operation based on the reproduction information stored in the memory 18. When recording the reproduction information on the optical disc 12, the reproduction information input by the user operating the operation unit 20 is stored in the memory 18. Therefore, the control unit 16 controls the optical disc control unit 14, It is recorded in a title recording area of the optical disc 12 in a predetermined format (details will be described later).

The operation of each embodiment of the optical disk recording / reproducing apparatus 10 configured as described above will be described below with reference to flowcharts and the like.

[First Embodiment] In this embodiment, recording and reproduction operations of music order information for reproducing a program will be described with reference to FIGS. FIG. 3 is a flowchart showing an operation when registering music order information for reproducing a program, FIG. 4 is a flowchart showing an operation when reading music order information for reproducing a program, and FIG. FIG. 14 is a diagram showing an example of reproduction information recorded in a title recording area of FIG.

Referring to FIG. 3, an operation when the user registers (records) music order information for reproducing a program on the optical disk 12 will be described. First, the user inputs the number of the music to be reproduced by the program (the number in the recording order) to the operation unit 20
An input is performed by the operation (step 30). Then, the inputted music number is temporarily stored in the memory 18 (step 31).

In this embodiment, the music number stored in the memory 18 is deleted when the power of the optical disk recording / reproducing apparatus 10 is turned off.
At F, before the power is actually turned off, the optical disk 1
The power may be turned off after this song number is recorded in the disc title area of the title recording area No. 2.

The description returns to the next step 31. It is determined whether or not the input of the music number has been continuously performed, that is, whether or not the input has been completed (step 32). If the input has not been completed (the input has been continued), the flow returns to step 30 to wait for the input. If the input has been completed, the flow proceeds to the next step 33. Then, in step 33, the memory 18
Is recorded in the disc title area of the title recording area of the optical disc 12 in a predetermined recording format. Thus, the registration of the music order information for the program reproduction is completed.

Next, with reference to FIG. 4, an operation for reading out the music order information for reproducing the program from the optical disk 12 will be described. From the disc title area of the title recording area of the optical disc 12, music order information, which is reproduction information recorded in a predetermined recording format, is read (step 40). Then, the read music order information is stored in the memory 18 (step 41). Next, memory 1
The program reproduction is started based on the music order information stored in No. 8 (step 42). As described above, the music order information for program reproduction is reproduced.

Here, the recording format of the music order information recorded in the disc title area will be described with reference to FIG. In the figure, the left column indicates which region of the title recording area the reproduction information is, the center column shows a recording example of the reproduction information, and the right column shows the content of the reproduction information. Since the music order information described with reference to FIG. 3 is reproduction information on a reproduction method for the entire optical disc, it is recorded in the “disc title area”.

Further, in the recording example, the disc title "A"
After “BC”, for example, “$ P” is used as an identifier to distinguish the disc title from the song order information. Describe sequentially in byte units ("01
03070A10 "), and the last song number is identified by an identifier" $ ".
It is recorded.

In this recording example, the order of program reproduction is as follows: the first tune (01), the third tune (03), and the seventh tune (0
7) The tenth music (0A) and the sixteenth music (10) are in order. Specifically, when the control unit 16 detects that the disc title area has an identifier "$ P" indicating the existence of the music order information for program reproduction, the music numbers are sequentially read up to the identifier "$". And store the song order information in the memory 18
And reproduces the program based on the music order information. Note that the identifier does not need to be “＄＄”, but “&”.
Other symbols such as &"and" ** "may be used.

[Second Embodiment] In this embodiment, recording and reproduction operations of volume information for setting a reproduction volume and sound quality information for setting a reproduction sound quality will be described with reference to FIGS. explain. FIG. 6 is a flowchart showing an operation for registering volume information and sound quality information for setting volume and sound quality, and FIG. 7 is an operation for reading volume information and sound quality information for setting volume and sound quality. 5 is a flowchart illustrating the operation of the embodiment.

With reference to FIG. 6, an operation in the case where the user registers (records) the volume information for setting the volume of the music and the sound quality information for setting the sound quality on the optical disc 12 will be described. First, the user inputs volume information and sound quality information of a song by operating the operation unit 20, and the input volume information and sound quality information are temporarily stored in the memory 18 (step 60).

In this embodiment, the volume information and the sound quality information stored in the memory 18 are erased when the power of the optical disk recording / reproducing apparatus 10 is turned off. Before the power is turned off, the volume information and the sound quality information may be recorded in the track title area of the music corresponding to the title recording area of the optical disc 12, and then the power may be turned off.

The description returns to the next step 61. Whether the input of the volume information and the sound quality information is continuously performed, that is,
It is determined whether the input has been confirmed (step 61). If the input has not been determined (the input has been continued), the process returns to step 60 to wait for an input. If the input has been determined, the process proceeds to the next step 62. Then, in step 62, the volume information and the sound quality information stored in the memory 18 are
It is recorded in a predetermined recording format in a track title area of a music corresponding to the title recording area of the optical disc 12.

Then, when registering the volume information and the sound quality information of the next music, the process returns to step 60, where the recording is performed in the track title area corresponding to the next music, and the volume information and the sound quality information to be registered are not present. Is completed as it is (step 63). In this way, the registration of the volume information for setting the volume of the song and the sound quality information for setting the sound quality is completed.

Next, with reference to FIG. 7, an operation for reading out the volume information and the sound quality information from the optical disk 12 will be described. It is determined whether the volume information and the sound quality information corresponding to the song to be reproduced are in the track title area of the corresponding song (the song to be reproduced) in the title recording area of the optical disc 12, and if so, Proceed to step 71; if not, proceed to step 74.

In step 71, volume information and sound quality information are read from the track title area of the corresponding music piece. Then, the read volume information and sound quality information are stored in the memory 18.
And performs sound volume setting and sound quality setting based on the sound volume information and sound quality information (step 72), and performs reproduction (step 73).

Next, when the control unit 16 detects the change of the music (step 75), the flow returns to step 70, and the volume information and the sound quality information corresponding to the changed music are stored in the title recording area of the optical disc 12 corresponding to the changed music. It is determined whether or not the song (the switched song) is in the track title area, and a series of steps are performed.

In step 70, if the volume information and the sound quality information corresponding to the music are not in the track title area of the music corresponding to the title recording area of the optical disc 12,
Proceeding to step 74, the sound volume is set and the sound quality is set, and reproduction is performed.

Here, referring to FIG. 5 again, the recording format of the volume information and the sound quality information recorded in the track title area will be described. The volume information and the sound quality information described with reference to FIG. 6 are recorded in the “track title area” of each music so that the volume and the sound quality can be set for each music.

Further, in the recording example, the track title is "
abc ”, and in order to distinguish between the track title, the reproduction information that is the volume information and the sound quality information,
For example, “＄＄” is used. After this identifier, an identifier "V" indicating volume information and an identifier "B" indicating sound quality information are used. After the identifier "V",
The set volume ("08") is described in 1-byte units, and after the identifier "B", the set sound quality ("02") is described in 1-byte units, and finally recorded with the identifier "$". It is.

Note that the identifier "B" indicating the sound quality information indicates only the gain setting of the bass (Bass) as an example. However, when setting the gain of the treble (Treble), the identifier is set as the identifier "T". Or the midrange (M
When setting the gain of idle, the gain may be set as the identifier “M”. As the volume information, volume balance may be set, or the volume information and the sound quality information may be appropriately combined.

The reproduction based on the program reproduction of the first embodiment and the reproduction based on the volume / sound quality information of the second embodiment may be executed in combination. in this case,
Each song is played back based on the volume information and the sound quality information, and the program is played back sequentially. Can be done.

When the disc title is displayed in the first embodiment, the display unit 22 may display only the disc title "ABC", or the program reproduction together with the disc title "ABC". May be displayed. Also in the second embodiment, when a track title is displayed, only the disc title "abc" may be displayed, or the volume information and the sound quality information may be displayed together with the track title "abc". May be.

[0049]

According to this optical disk recording / reproducing apparatus,
The reproduction information of the music can be recorded, and the music can be reproduced based on the reproduction information. Further, since the reproduction information is recorded on the optical disk, even if the reproduction information in the memory is erased, the music can be reproduced based on the reproduction information by reading the reproduction information again from the optical disk.

Since the reproduction information is recorded on the optical disk, the reproduction information can be recorded without being limited by the upper limit of the memory capacity in the optical disk recording / reproducing apparatus and without increasing the memory capacity. Further, since the reproduction information is recorded in the title recording area of the optical disk, the reproduction information can be recorded on the optical disk without changing the basic recording format of the optical disk.

[Brief description of the drawings]

FIG. 1 is a data configuration diagram showing a data configuration of user TOC information.

FIG. 2 is a block diagram showing a configuration of an optical disk recording / reproducing apparatus.

FIG. 3 is a flowchart showing an operation when registering music order information for program reproduction.

FIG. 4 is a flowchart showing an operation when reading out music order information for program reproduction.

FIG. 5 is a diagram showing an example of reproduction information recorded in a title recording area of an optical disc.

FIG. 6 is a flowchart showing an operation when registering sound volume information and sound quality information for setting the sound volume and sound quality.

FIG. 7 is a flowchart showing an operation when reading out volume information and sound quality information for setting the volume and sound quality.

[Explanation of symbols]

 Reference Signs List 10 optical disk recording / reproducing device 12 optical disk 14 optical disk control unit 16 control unit 18 memory 20 operation unit 22 display unit

Claims (5)

[Claims] A setting section for setting reproduction information of a song; a recording section for recording the reproduction information set by the setting section in a title recording area of an optical disc; and a title recording area in which the reproduction information is recorded. An optical disc recording / reproducing apparatus, comprising: a reading unit that reads the reproduction information from the CPU; and a reproduction unit that reproduces the music based on the reproduction information read from the reading unit. 2. A detecting section for detecting that a song being reproduced has been switched, wherein the reading section reads the title from a title recording area corresponding to the switched song based on a detection result by the detecting section. 2. The optical disk recording / reproducing apparatus according to claim 1, wherein the reproducing information is read, and the reproducing section reproduces the music based on the reproducing information read from the reading section. 3. The optical disk recording apparatus according to claim 1, wherein the reproduction information includes at least one of reproduction order information, volume information, and sound quality information of the music. Playback device. 4. An optical disc recording medium characterized in that music reproduction information is recorded in a title recording area. 5. The optical disc recording medium according to claim 4, wherein the reproduction information includes at least one of reproduction order information, volume information, and sound quality information of the music.