JPH11232847A - Reproduction order storing method and its device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a reproduction order storing method and a its device capable of automatically reproducing optical disks in a predetermined order. SOLUTION: This reproduction order storage device is a device provided with an optical pickup 13, a memory 18 for storing reproduction order information corresponding to respective disk-shaped recording mediums and a system controller 19 which recognizes the disk-shaped recording mediums and collates reproduced information signals with stored reproduction order information and controls the system of the device so as to reproduce the collated information signals based on the reproduction order information. In this device, it is not needed to perform the same operations each time when a recording medium is to be changed to another recording medium and when orders of music are determined for each recording medium, thus operability is enhanced and the reproducing of recording mediums is automatically performed in a predetermined order.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproduction order storage method and a reproduction order storage device, for example, a compact disk (CD) or a mini disk (M) as a disc-shaped recording medium.
The present invention can be applied to a reproducing apparatus for music recorded in D).

[0002]

2. Description of the Related Art Conventionally, for example, in a reproducing apparatus for a mini disc (MD) made of such a disk-shaped recording medium, the following operations have been performed in order to reproduce music.
First, a disk-shaped recording medium is mounted on a playback device. Next, the user operates the operation unit to select a desired song from the song names displayed on the display unit, and reproduces the selected song. Alternatively, the user has programmed a desired song order and played back the program in the song order according to the program.
Note that such an operation is performed every time the recording medium is mounted on the reproducing apparatus. That is, when the recording medium is taken out of the reproducing apparatus and replaced with another recording medium, the above-described operation has to be performed without fail.

With respect to such a conventional music order reproducing apparatus,
In Japanese Patent Application Laid-Open No. 8-50780, character information such as a disk name is stored in a memory corresponding to each disk, and a list of the character information is displayed to perform a selection operation to correspond to the specified character string. A playback controller and a playback system in which a playback control signal for a disc is transmitted to a player are disclosed.

[0004]

However, in the above-described conventional music order reproducing apparatus, when the recording medium is taken out of the reproducing apparatus and replaced with another recording medium, the above operation must be performed without fail. If the order of the songs to be listened to is determined for each recording medium, or if the order of listening is always the same, it is necessary to perform the same operation every time, which is inconvenient in that the operation is complicated. Further, the apparatus disclosed in Japanese Patent Application Laid-Open No. 8-50780 has a disadvantage that it is not possible to automatically switch the mode between the normal reproduction and the music order designation reproduction.

The present invention has been made in view of the above points, and is intended to propose a reproduction order storage method and a reproduction order storage device capable of automatically reproducing an optical disk in a predetermined music order. It is.

[0006]

According to another aspect of the present invention, there is provided a reproducing order storage device for reproducing information signals recorded on a disk-shaped recording medium, and a recording device for identifying the disk-shaped recording medium. Medium identification means, reproduction order storage means for storing reproduction order information corresponding to each disc-shaped recording medium for each disc-shaped recording medium identified by the recording medium identification means, and an information signal reproduced by the reproduction means. A collating unit for collating the reproduction order information stored in the reproduction order storage unit; and a control unit for controlling the information signal collated by the collation unit to be reproduced based on the reproduction order information. It is a thing.

[0007] Also, a reproducing order storage method according to the present invention comprises a reproducing step of reproducing an information signal recorded on a disc-shaped recording medium, an identifying step of identifying the disc-shaped recording medium,
A collation step of collating the reproduction order information stored corresponding to each disc-shaped recording medium with respect to each disc-shaped recording medium identified by the recording medium identification means, and a reproduced information signal; and the collated information. And controlling the signal to be reproduced based on the reproduction order information.

According to the reproduction order storage device of the present invention, the following operations are performed. The reproducing means acts to reproduce an information signal recorded on the disc-shaped recording medium by irradiating a pit formed on the disc-shaped recording medium with laser light and detecting reflected light. The recording medium identification means acts to identify the disk-shaped recording medium based on the identification number or the identification information recorded on the disk-shaped recording medium.

The reproduction order storage means is provided for each disc-shaped recording medium identified by the recording-medium identification means for a disc-shaped recording medium in which the order of the songs to be listened to is determined in advance or a disc-shaped recording medium in which the order of listening is always the same. In order to store reproduction order information corresponding to each disc-shaped recording medium.

The collating means operates to collate the information signal reproduced by the reproducing means with the information signal included in the reproduction order information stored in the reproduction order storage means. The control means controls the reproducing means based on the reproduction order information to reproduce the information signal recorded on the disk-shaped recording medium when the collation is possible by the collating means. I do.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A reproduction order storage device according to an embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 3 is a block diagram showing a configuration of the reproduction order storage device according to the embodiment of the present invention. The playback order storage device according to the embodiment of the present invention is applied to an optical disk drive. By storing in advance the playback song order information of a recording medium on which music being played back in the same song order is recorded in advance. The recording medium to be automatically reproduced is identified, and the reproduction is automatically performed in the stored music order.

That is, in this reproduction order storage device,
The spindle motor 12 drives the optical disc 11 to rotate based on a drive pulse from a spindle driver (not shown) of the servo circuit 20.

The optical pickup 13 emits a laser beam for disc reproduction, and an objective lens (not shown) focuses the reflected light of the mirror on the optical disc 11. The objective lens is independently moved in a focus direction (up and down direction) and a tracking direction (left and right direction) by a biaxial actuator using electromagnetic force.

The optical pickup 13 is sequentially moved in the outer peripheral direction of the optical disk 11 by a thread motor (not shown) in synchronization with the rotation of the optical disk 11, whereby the irradiation position of the laser beam is sequentially displaced in the outer peripheral direction of the optical disk 11. .

Thus, while the optical disk 11 is being driven to rotate, a laser beam is irradiated on the track formed in a spiral by the movement of the mirror and the objective lens, and this return light is detected by the photodiode, and the detection signal is output. RF
Supply to the circuit 14. The RF circuit 14 generates a reproduced RF signal from the detection signal and supplies it to a DSP (Digital Signal Processor) circuit 15.

After the reproduced RF signal is re-clocked by the clock re-generation PLL in the DSP circuit 15, audio data and sub-code data are demodulated according to the CD or MD format. That is, the DSP circuit 15 detects an error correction code from the audio data and the subcode data, performs an error correction process, and then performs a deinterleave process and an EFM demodulation process. The audio data is supplied to a DAC (Digital-Analog Converter) 21, and the subcode data is supplied to a TOC (Table Ovo Content) detection circuit 16.

The TOC detection circuit 16 detects a TOC constituted by the data of the Q channel of the subcode.
The TOC is composed of a song number (a number of a movement, etc.), an index (a further subdivided movement), an elapsed time (minute, second, frame number) in the movement, an absolute time (minute, second, frame number), and the like. . The TOC data and the subcode data are supplied to the command creation circuit 17, where the command is created and the command is output to the terminal 24.

The DAC 21 converts digital audio data into an analog audio signal and supplies the analog audio signal to the output amplifier 22. The output amplifier 22 amplifies the audio signal to a level at which the audio signal can be output, and outputs the amplified audio signal to the terminal 23 as an audio output.

Here, in this embodiment, in particular, music order information is stored in the memory 18 in advance, and when the TOC information is detected by the TOC detection circuit 16, the system controller 19 The music order information is read out, the TOC information and the music order information are compared and collated to determine a reproduction order, and a control signal is supplied to the command generation circuit 17 so as to generate a command for supporting the reproduction order.

The system controller 19 has a DS
P circuit 15, TOC circuit 16, command creation circuit 17,
A control signal is supplied to the servo circuit 20 and the memory 18 to control the operation.

Next, a storage format of music order information according to the present embodiment will be described with reference to FIG. This music order information is stored in the memory 18 shown in FIG. In FIG. 1, first, a disk-shaped music recording medium (hereinafter, referred to as a “music recording medium”)
TOC information 1 for collating a music medium) is stored, and the album name 2 is subsequently stored. Next, following the album name 2, the program numbers ((1) to (4) to) 3 in the order of the songs to be reproduced are stored, and finally the end code (0) 4 indicating the end of the music medium is stored. . Hereinafter, the TOC information 1-2 of the second music medium is stored, and the album name 2-2 is subsequently stored. Next, the program number ((1)-(4)-) 3-2 in the order of music to be reproduced is stored following the album name 2-2, and finally, an end code (0) 4 indicating the end of the music medium. , Is stored,..., TOC information 1- of the N-th (integer) music medium
N is stored, followed by the album name 2-N. Next, a program number ((1) to (4) to) 3-N to be played following the album name 2-N is stored.
Lastly, two end codes (0) (0) 4-N indicating the end of the music medium and indicating the end of the order of all information tunes are stored.

For example, in the case of storing the music order information of two music media, the reproduction music order of the first medium is 5,1,3, and the reproduction music order of the second medium is 10,11, For the fifth and sixth songs, the song order information stored in the memory 18 includes “TOC information of the first music medium, first album name, program 5, program 1, program 3, end code 0,
TOC information of the second music medium, second album name, program 10, program 11, program 5, program 6, end code 0, end code 0, ".

The operation of the music order information reproducing apparatus of this embodiment having the above-mentioned configuration will be described with reference to the flowchart shown in FIG. The flowchart of FIG. 2 shows a process of comparing the TOC information of the music medium to be reproduced with the music order information stored in the memory 18.

In FIG. 2, a play button is pressed in step S1. Specifically, the operator presses a play button of the operation means, and the system controller 19 generates a play command to instruct the optical pickup 13 to irradiate the optical disc 1 with a laser beam for play. The RF signal reproduced by the optical pickup 13 is R
The signal is supplied to the TOC detection circuit 16 via the F circuit 14 and the DSP circuit 15.

In step S2, the TOC is read from the music medium. Specifically, the TOC detection circuit 16 detects TOC information composed of Q-channel data of the subcode detected from the RF signal.

In step S3, 1 is set to P. Specifically, the count value of the counter of the system controller 19 is set to 1.

In step S4, the music order information stored at the P-th position is read. Specifically, the system controller 19 reads out the music order information stored first from the memory 18.

In step S5, it is determined whether or not the TOCs match. If they match, the process proceeds to step S6, where the songs are reproduced in the order of the song order information.
Proceed to 7. Specifically, the system controller 19
TOC information detected by the TOC detection circuit 16 and the memory 1
The optical pickup confirms that the TOC information in the song order information read from step 8 matches, and if the TOC information matches, the optical pickup is automatically reproduced in the designated song order based on the song order information. 13 is performed.

In step S7, it is determined whether or not two end codes have appeared consecutively. If so, the flow proceeds to step S8 to perform reproduction in the normal reproduction mode. Is incremented and step S
Return to 4. Specifically, the system controller 19
The TOC information detected by the OC detection circuit 16 and the memory 18
If the TOC information in the song order information read out of the file does not match (cannot be collated), it is checked whether the end code has been repeated twice. Assuming that there is no medium, normal reproduction is performed in order from the first song. If the end code does not continue twice, the count value of the counter of the system controller 19 is incremented because there is still music order information of another music medium. To read out the next music order information, and execute steps S4 to S7.
Is repeated and the processing is repeated.

In this way, when reproducing a music medium that is always listened in the same music order, there is no need to program every time, and the operability is improved. In addition, the operability is improved because the program stored in advance is automatically selected only by playing the music medium.

Next, the operation of identifying a recording medium will be described. The identification of the recording medium is performed by the system controller 19.
Do. For example, in the case of an MD, when the operator has previously recorded the disk number of the optical disk 11 using a key (not shown), the system controller 19 identifies the recording medium from the disk number of the optical disk 11 to be reproduced. Then, as described above, the system controller 19 performs the operation of comparing the music order information corresponding to the disc number with the TOC. In the case of MD,
Not only the disc number but also characters such as a track number, a song title, and a player name can be input. By displaying these disc numbers, track numbers, song titles, player names, and the like on a display unit (not shown), the operator can also identify the disc. Also, M
In the case of D, a disc name and a track name can be displayed as TOC information.

Further, in the case of a CD, characters cannot be recorded on the disk itself. For example, when an operator inputs character information such as a disk title from a key in correspondence with a disk number, a system controller is used. 19 can store this character information in the memory 18. In such a case, the system controller 19 can read out the character information from the memory 18 according to the disk number of the disk being played and display it on the display unit.

Further, the system controller 19 may cause the memory 18 to hold disk identification data called a so-called custom file together with the disk number. This custom file is located on the T
This is a disc-specific code generated by combining data such as the number of tracks and performance time as part of the OC information, and serves as identification data for each disc.

The reproduction order storage device of the present embodiment described above includes an optical pickup 13 as reproduction means for reproducing information signals recorded on an optical disk 11 as a disk-shaped recording medium, and a recording device for identifying the disk-shaped recording medium. A system controller 19 as medium identification means, a memory 18 as reproduction order storage means for storing reproduction order information corresponding to each disk-shaped recording medium for each disk-shaped recording medium identified by the recording medium identification means, and a reproduction means Controller 19 as matching means for checking the information signal reproduced by the above with the reproduction order information stored in the reproduction order storage means.
And a system controller 19 as control means for controlling the information signal collated by the collation means to be reproduced based on the reproduction order information, so that the recording medium is taken out of the apparatus and replaced with another recording medium. It is not necessary to perform the same operation at the same time, and when the order of songs to listen to is determined for each recording medium, or when the order of listening is always the same, there is no need to perform the same operation every time, and operability can be improved. In addition, the recording medium can be automatically reproduced in a predetermined music order.

In the above-described reproduction order storage device of the present embodiment, in the above description, the reproduction information is the TOC information 1, 1-2, 1-N as management information, and the reproduction order information is the management information. Since the TOC information 1, 1-2, 1-N is included, the collation operation can be performed in a short time and reliably by collating the management information.

Further, in the above-described reproduction order storage device of the present embodiment, in the above description, the reproduction information is information of a predetermined range, and the reproduction order information includes information of a predetermined range. By comparing a characteristic part or a characteristic part, the reliability of the collation operation can be further improved.

Further, in the above-described reproducing order storage method of the present embodiment, the reproducing step of reproducing the information signal recorded on the optical disk 11 as the disk-shaped recording medium, the identifying step of identifying the disk-shaped recording medium, A collating step of collating the reproduction order information stored corresponding to each disc-shaped recording medium with respect to each disc-shaped recording medium, and a reproduced information signal; and comparing the collated information signal based on the reproduction order information. And a control step of controlling to play back.
It is not necessary to perform the same playback program processing when replacing a recording medium with another recording medium, and the same playback program processing is performed every time when the order of music to be listened to is determined for each recording medium or when the listening order is always the same. , The reproduction process can be simplified, and the recording medium can be automatically reproduced in a predetermined music order.

In the reproduction order storage method according to the present embodiment, in the above description, the collating step includes the TOC information 1, 1-2, 1-N as the management information of the reproduction information, and the management of the reproduction order information. TOC information 1, 1-2 as information
Since 1-N is collated, the collation processing can be performed quickly and reliably by collating the management information.

In the above-described reproduction order storage method of the present embodiment, the TOC information 1, 1-2, 1-N as the reproduction information management information and the TOC information When the information 1, 1-2 and 1-N are not collated, the reproduction is performed in the normal order, so that the music order reproduction mode and the normal reproduction mode can be automatically switched.

[0041]

According to the present invention, there is provided a reproducing order storage device, comprising: reproducing means for reproducing an information signal recorded on a disk-shaped recording medium; recording medium identifying means for identifying the disk-shaped recording medium; and recording medium identifying means. A reproduction order storage unit for storing reproduction order information corresponding to each disk-shaped recording medium for each disk-shaped recording medium identified by the information processing unit; an information signal reproduced by the reproduction unit; Since there is provided a collating means for collating the reproduction order information and a control means for controlling the information signal collated by the collating means to be reproduced based on the reproduction order information, the recording medium is taken out from the apparatus. It is not necessary to perform the same operation when exchanging with another recording medium, and when the order of songs to listen to is determined for each recording medium or when the listening order is always the same, the same operation must be performed every time Whilst it is possible to improve the operability, an effect that can be performed automatically playing the predetermined track order in the recording medium.

Further, in the reproduction order storage device according to the present invention, in the above description, the reproduction information is management information, and the reproduction order information includes management information. Is effected in a short time and reliably.

Further, in the reproduction order storage device of the present invention, in the above description, the reproduction information is information in a predetermined range, and the reproduction order information includes the information in the predetermined range. By collating a characteristic portion, there is an effect that the reliability of the collation operation can be further improved.

Also, the reproducing order storage method of the present invention comprises a reproducing step of reproducing an information signal recorded on a disc-shaped recording medium, an identifying step of identifying the disc-shaped recording medium,
A collating step of collating the reproduction information stored for each disc-shaped recording medium with respect to each disk-shaped recording medium and the reproduced information signal; and transmitting the collated information signal to the reproduction sequence information. Control step for controlling reproduction based on the recording medium, so that it is not necessary to perform the same reproduction program processing when exchanging a recording medium with another recording medium, and the order of music to be listened to is determined for each recording medium. And the same playback program does not have to be performed each time the listening order is always the same, the playback process can be simplified, and the recording medium can be automatically played back in a predetermined music order. It has the effect of being able to.

In the reproduction order storage method according to the present invention, in the above description, the collation step collates the management information of the reproduction information with the management information of the reproduction order information. By doing so, there is an effect that the collation processing can be performed reliably in a short time.

Further, in the reproduction order storage method of the present invention, when the management information of the reproduction information and the management information of the reproduction order information do not match with each other, the reproduction is performed in a normal order. By collating the head portion of the music or a characteristic portion, it is possible to automatically switch between the music order reproduction mode and the normal reproduction mode.

[Brief description of the drawings]

FIG. 1 is a diagram showing a storage format of music order information according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating an operation of selecting music order information according to the embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a reproduction order storage device according to the embodiment of the present invention.

[Explanation of symbols]

1,1-2,1-N... TOC information, 2,2-2,2-
N: Album name, 3, 3-2, 3-N: Program (1), (2), (3), (4), ..., 4 ... End code (0), 5 ... End code (0), end code (0), 11 optical disk, 12 spindle motor, 13 optical pickup, 14 RF circuit, 15
... DSP circuit, 16 TOC detection circuit, 17 command creation circuit, 18 memory (song order information), 19
... System controller, 20 ... Servo circuit, 21 ...
... DAC, 22 ... output amplifier, 23 ... terminals, 24 ...
… Terminal

Claims (6)

[Claims] 1. A reproducing means for reproducing an information signal recorded on a disc-shaped recording medium, a recording medium identifying means for identifying the disc-shaped recording medium, and a disc-shaped recording medium identified by the recording medium identifying means. A reproduction order storage means for storing reproduction order information corresponding to each disc-shaped recording medium; and a collation means for collating the information signal reproduced by the reproduction means with the reproduction order information stored in the reproduction order storage means. And a control means for controlling the information signal collated by the collation means to be reproduced based on the reproduction order information. 2. The reproduction order storage device according to claim 1, wherein the reproduction information is management information, and the reproduction order information includes management information. 3. The reproduction order storage device according to claim 1, wherein the reproduction information is information in a predetermined range, and the reproduction order information includes the information in the predetermined range. apparatus. 4. A reproducing step of reproducing an information signal recorded on a disc-shaped recording medium; an identification step of identifying the disc-shaped recording medium; and a discriminating medium corresponding to each disc-shaped recording medium. And a control step of controlling the reproduced information signal to be reproduced based on the reproduced order information, based on the reproduction order information. A method for storing a reproduction order. 5. The reproduction order storing method according to claim 4, wherein the collating step collates the management information of the reproduction information with the management information of the reproduction order information. Memory method. 6. The reproduction order storage method according to claim 5, wherein when the management information of the reproduction information does not match the management information of the reproduction order information, the reproduction is performed in a normal order. And a reproduction order storage method.