JPH1125654A - Disk playback device equipped with auto chainer - Google Patents

Abstract

(57) [Problem] To provide a disk storage device capable of storing a plurality of types of disks or a plurality of disks of the same type and to freely manage the disks, thereby improving operability. In addition, when the disk is changed, the reproduction can be performed with high continuity. SOLUTION: In order to manage disks stored in a disk storage device 500, disk storage information storage device 300 stores disk storage position information, disk type information, and information necessary for reproducing each disk. The control information is stored in advance in the storage unit for each disk together with the additional information for managing each disk. When the additional information of the disk is input from outside, the matching additional information for management is searched, and the storage position information of the disk, the type information of the disk, and the control information related to the additional information are stored in the disk management means. Search from the storage unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a disk reproducing apparatus provided with an autochanger capable of automatically changing an optical disk to be reproduced.

[0002]

2. Description of the Related Art At present, the following optical disks, which are information recording media for audio / video, are commercially available. A digital audio compact disc (hereinafter abbreviated as CD) having a diameter of 8 cm or 12 cm, and an analog video laser disc (hereinafter abbreviated as LD) having a diameter of 20 cm or 30 cm.

A plurality of subcodes (P, Q, R to W channels) based on the CD format are recorded on a CD. In this subcode, the Q channel contains an address, and in a CD, this address always contains "1" (for example, 4-bit 0001). For example, when the determination unit of the playback device detects “1” of the address of the Q channel, it is possible to determine that the optical disk set in the playback device is a CD.

[0004] For the LD, the disk size is 12c.
Whether the disc is larger than m (whether the disc diameter is 20 cm or more) is determined by using a sensor provided in the reproducing apparatus. Since there is no CD larger than 12 cm, the LD can be identified with such a sensor.

In addition to the CDs and LDs described above, recently,
A high-density video disk (hereinafter abbreviated as DVD) capable of recording moving images and a plurality of audio data based on the MPEG2 (Moving Picture Experts Group 2) standard has been developed.

The DVD is an optical disk having a diameter similar to that of a CD, and has a similar appearance (there is a difference between a laminated type and a single-plate type, but it is difficult for an unfamiliar user to recognize it). If the size of this DVD is 8 cm or 12 cm like a CD, an unfamiliar user may not know what type of disc has been set in the disc reproducing apparatus. In such a case, the user removes the disc from the playback device and
By reading the label of the disc to confirm whether the disc is a DVD or a CD, the disc is set in the apparatus again, and a device operation corresponding to the type of disc is performed, thereby starting reproduction. However, this can be a troublesome task for the user.

As described above, in recent years, a plurality of types of disks having similar appearances have been on the market.
It is necessary to purchase a playback device corresponding to each of a plurality of types of discs.

However, having a plurality of different types of playback devices is inconvenient for the user in operation and burdens the economy.

Therefore, conventionally, a plurality of disks of the same type can be made to stand by in the disk storage unit. When disk selection information is externally provided, a disk corresponding to the selection information is stored in the disk storage unit. Extraction devices have been developed. In this apparatus, the ejected disc is automatically transferred to a disc drive of the reproducing apparatus and loaded. After loading the disc, the playback device starts playing the disc. The above-described disc reproducing apparatus is called a disc reproducing apparatus having an autochanger.

[0010]

However, the conventional disk reproducing apparatus equipped with an autochanger has a problem in that it takes a long time from when a disk is exchanged to when reproduction information of the disk is obtained.

SUMMARY OF THE INVENTION An object of the present invention is to provide a disk reproducing apparatus having an autochanger which can reduce the time from when the disk is exchanged to when the reproduction information of the disk is obtained.

Further, the present invention has a disk storage device capable of storing a plurality of types of disks and storing a plurality of disks of the same type, so that the disks stored therein can be managed freely. It is another object of the present invention to provide a disk reproducing apparatus provided with an autochanger for improving operability.

[0013]

According to the present invention, there is provided a disk storage device capable of storing a plurality of types of disks and storing a plurality of disks of the same type. In order to manage the disks stored in the disk storage device, information on the storage position of the disk, information on the type of the disk, and control information necessary for playing each disk, along with additional information for managing each disk, A disk management means previously stored in the storage unit for each disk. Then, when the additional information of the disc is input from the outside, the additional information for management is searched for a matching additional information by comparing the additional information with the management.
A search means for reading out the storage position information of the disk, the type information of the disk, and the control information related to the additional information from the storage unit of the disk management means is provided.

According to the above-mentioned means, even when a large number of discs of different types are stored, when a disc to be reproduced is selected, information on the disc is retrieved from the storage unit to easily set an appropriate reproduction mode. Can be set.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment of the present invention. Reference numeral 100 denotes an optical disc mounted on the compatible playback device 200. In the reproducing device 200, the optical disc 100 is driven to rotate by a disc motor 201. The optical pickup device 202 reads recorded information recorded on the optical disc 100. The read signal derived from the pickup device 202 is
The signal is introduced into one of the DVD reproduction system 205 and the CD reproduction system 206 via the selector 203. DVD
The playback system 205 has playback characteristics suitable for DVD playback. The CD reproduction system 206 has reproduction characteristics suitable for reproducing a CD.

When a DVD is reproduced, management information of the DVD is read from the management information storage device 300, and
Used in the DVD playback system 205. When a CD is played, the management information of the CD is read from the management information storage device 300 and used in the CD playback system 206.

Writing and reading of management information to and from the management information storage device 300 is controlled by the microprocessor 207.
It is executed under the control of. Microprocessor 207
Manages and controls the entire apparatus. Under the control of the microprocessor 207, management information for managing and controlling various disks stored in the disk storage device 500 has been transferred to the disk management information storage device 300 in advance. Therefore, when the disc loaded in the playback device 200 and the disc in the disc storage device 500 are exchanged by the disc changer 600, the playback device 200 transmits management information of the disc mounted on the playback device 200. There is no need to read from the disk. Therefore, as the time from when the disc is exchanged to when the reproduction information is obtained, the reading time of the management information is reduced.

The disk storage device 500 is provided with disk presence / absence detection means, and the output of this detection means is read by the microprocessor 207.

Reference numeral 400 denotes a servo device which receives control information from the microprocessor 207 and performs a movement position of the pickup device 202, a focus control of the pickup device 202, a tracking control, and the like. The servo device 400 also controls the rotation of the disk motor 201. Furthermore, various controls for the disk storage device 500 and various controls for the disk changer 600 are executed. The characteristics of the servo device 400 are also set to appropriate characteristics by the microprocessor 207 according to the type of the disk to be reproduced.

The disk storage device 500 can store a plurality of types of disks, and can store a plurality of disks of the same type. For this purpose, there are a plurality of DVD folders and a plurality of CD folders. Further, a disk number is added as additional information corresponding to each disk (folder). The disc changer 600 is
The optical disc 100 mounted on the reproducing apparatus 200 can be returned to the original storage section, or the disc storage apparatus 500
The user can search for and retrieve a desired disc from among them, and mount it on the playback device 200.

Information for search is provided to the microprocessor 207 from the external operation input unit 700, for example. The macro processor 207 checks whether or not additional information corresponding to the information for search exists in the disk management information storage device 300. When this confirmation is completed and it is determined that the additional information corresponding to the information for search is recorded in the disk management information storage device 300, the information for this search is further transmitted from the microprocessor 207 to the servo device 400. Through the disk changer 600. The information for this search is given, for example, in the form of a disk number (additional information).

The disc changer 600 to which the disc number is given first checks whether or not a disc mounted on the reproducing apparatus 200 exists. Playback device 20
0, a disc is present in the microprocessor 400.
00 determines whether the disk currently mounted on the disk reproducing device 200 is the disk specified by the additional information. If the result of the determination is that the disc is specified by the additional information, the entire apparatus is controlled so that the reproduction is started immediately.

Conversely, if the disk currently mounted on the disk reproducing device 200 is not the disk specified by the additional information, the microprocessor 207 determines that the disk mounted on the disk reproducing device 200 is a disk. The disc changer 600 is controlled so as to return to the original folder of the storage device 500.

Next, the disk at the position of the specified disk number is taken out from the disk storage device 500, and
The disc changer 600 is controlled so as to be mounted on the playback device 200. Here, assuming that the disc mounted on the reproducing apparatus 200 is, for example, a DVD, the microprocessor 207 reads the management information of the corresponding DVD from the management information storage device 300, and reads the management information from the DVD.
Set to the playback system 205. That is, the management information of the DVD is not read from the DVD itself. As a result, when the disc is mounted, the reproducing apparatus 200 can set information necessary for reproducing the disc in the DVD reproducing system 205 without having to read management information from the disc again.

In the above description, the disk number is externally given as information for search, but the present invention is not limited to this, and there are various methods. For example, a title set in advance on a disc may be given as search information. When the title (additional information) is given from the outside, the disk number (storage position) corresponding to the title and management information necessary for reproducing the disk corresponding to the title are recorded in the disk management information storage device 300. Is determined. When the disc management information corresponding to the title given from the outside exists in the disc management information storage device 300, various kinds of corresponding information, that is, disc numbers and management information necessary for reproduction are read out. The disk number is used for a disk search in the disk storage device 500, and management information necessary for reproduction is set in a disk reproduction system.

The apparatus according to the present invention comprises a disk storage device 50.
When a new disk is added to the disk storage unit 0 or when the entire disk is replaced, the microprocessor 207 performs the following data processing to manage the disks stored in the disk storage device 500. Do. In other words, the microprocessor 207 preliminarily stores, for each disk, storage position information (disk number) of the disk, type information of the disk, and control information necessary for reproducing the disk, together with additional information for managing each disk. It is stored in the disk management information storage device 300. Then, when the additional information (referred to as external additional information) of the disc is input from the outside, the additional information for management (referred to as internal additional information) is compared with the additional information for management, thereby searching for matching additional information. The disk storage position information, disk type information, and control information related to the disk management information can be read from the disk management information storage device 300.

As described above, the additional information may be a disc number or a title.

FIG. 2 shows a disk management information storage device 30.
5 shows a table of the disk management information stored in “0”. The item of the disk number is the disk storage device 50.
0 corresponds to the disk position. In the item of the disk type, for example, a code for distinguishing a DVD or a CD and a code indicating no disk are described. As the reproduction management information, management information called video manager information (VMGI) described later for DVD and management information called top of content (TOC) described later for CD is stored.

FIG. 3 is a diagram showing a processing procedure for constructing the table shown in FIG.

When one or a plurality of disks are stored in the disk storage device 500, the number of stored disks and the storage location are checked (step A).
1 to A3). Next, when each storage location is detected, the type of disk in each storage location is determined sequentially (step A4).

When the disk is a DVD, the disk is driven to rotate. Then, at least the video manager information management table (VMGI MAT) and title search pointer (TT) SRPT) is read and stored in the disk management information storage device 300 (steps A5 and A7).

If it is determined in step A4 that the disk is a CD, the disk is driven to rotate. Then, from the reproduction signal of the disc, T
The OC is read and stored in the disk management information storage device 300 (steps A6 and A7). VMGI MAT
And TT SRPT is reproduction management information necessary for reproducing a DVD, and TOC is reproduction management information required for reproducing a CD.

In step A7, after the reproduction management information, the type of the disk, and the disk number are stored, the disk management information is constructed for the N disks at all the positions detected earlier. A determination is made as to whether it has been performed. If it is necessary to further construct the disk management information, the process returns to step A4, and if the construction of the disk management information has been completed for the disks at all positions, the process is terminated (A9).

FIG. 4 shows still another embodiment of the flowchart used when constructing the disk management information.

In this example, the disk storage positions of the disk storage device 500 are set separately for a DVD folder group and a CD folder group, and this is used effectively. That is, when the construction of the disc management information is started after the disc has been stored, first, the position of the newly inserted disc is a DVD folder or not.
It is determined whether the folder is the D folder (step B).
1).

FIG. 4 shows a case where it is determined that the folder is a DVD folder. The determination of the folder is realized by discriminating and registering the DVD folder and the CD folder as disc numbers. For example, a disk number assigned to a DVD folder and a disk number assigned to a CD folder may be identified by a suffix.

Assuming that the DVD folder is recognized by the microprocessor, the reproducing apparatus 200
The VD mode is set, and the disc is loaded into the playback device by the disc changer 600. Next, the reproducing apparatus 200 actually operates to physically discriminate the disc. This disc discrimination utilizes the light reflection characteristics resulting from the disc structure. For example, it is realized by inspecting characteristics of a focus error signal, characteristics of a sub beam signal, and the like. The level of the focus error signal changes according to the distance between the beam and the disk, and a so-called S
Change into shape. In the case of a DVD, a signal having an S-shaped characteristic is obtained twice during the focus adjustment because of the structure in which two substrates are bonded. On the other hand, in the case of a CD, since it is a single plate, a signal of the S-shaped characteristic is obtained once during focus adjustment.

If it is determined in step C2 that the disc mounted on the reproducing apparatus 200 is a CD, it means that the CD was originally stored in the folder for storing the DVD. In this case, the storage device 300
Is written as the CD at the position of the disk number in the table. At step C2, the playback device 20
When it is determined that the disc mounted on the DVD is a DVD, the process proceeds to step C4, where the reproduction management information of the disc is read, and in step C5, it is determined whether accurate data has been obtained. If the read data is correct, the reproduction management information is written to the area of the corresponding disc number in step C6. In this way, the storage contents of the disk management information storage device 300 are constructed.

In the next step C7, it is determined whether or not the above-mentioned construction of the disc management information has been completed for the DVD in the DVD folder. If it has not been completed, the process returns to step C2, and if it has been completed, the process proceeds to step C8, where the characteristics of the playback device 200 are switched to the CD mode. Next, in step C9,
Check the disk number whose disk type is CD.

This check operation is performed in step C3.
It is executed by searching the stored information of the disk management information storage device 300. If the disc number is confirmed, the disc of the disc number is reproduced in step C9, the TOC is read, and the accuracy of the data is confirmed in step C10. The disk management information storage device 3 by associating the TOC with the disk number
00 is stored. Then, it is confirmed whether the management information of all the CDs in the DVD folder has been constructed, and if the management information has been constructed, the process is terminated (step C13).

FIG. 5 shows the procedure of processing when it is determined in step B1 that the detected folder is for a CD. This process is performed continuously after the process of FIG. 4 is performed.

At this time, the playback device 200 is set to the CD mode, and the disc is loaded into the playback device 200 by the disc changer 600. Next, the reproducing apparatus 200 actually operates to physically discriminate the disc.

If it is determined in step D2 that the disc is a DVD, the D should be stored in a folder for storing a CD.
That is, VD was stored. In this case, the disk type is written as DVD in the area of the corresponding disk number. If it is determined in step D2 that the disc is a CD, the process proceeds to step D4, where the reproduction management information (TOC) of the disc is read, and in step D5 it is determined whether or not accurate data has been obtained. If there is, in step D6, the TOC is written in the table of the disk management information storage device 300 in correspondence with the disk number.

In the next step D7, it is determined whether or not the above-described construction of the disc management information has been completed for the CD in the CD folder. If not completed, the process returns to step D2. If completed,
Proceeding to step D8, the characteristics of the playback device 200 are set to DV.
Switch to D mode. Next, in step D9, the disk number of the disk whose type is DVD is confirmed. This confirmation work is executed by searching the written storage information of the disk management information storage device 300 in step D3. If the disc number is confirmed, the disc of the disc number is reproduced in step D9, the management information is read, and the accuracy of the data is confirmed in step D10. The disk management information storage device 30
Store to 0. And all D in the folder for CD
It is confirmed whether the VD management information has been constructed, and if it has been constructed, the process is terminated (step D13).

According to the above-described apparatus, when a disk number is given from the external operating device 700 through a remote controller or the like, the microprocessor 207 transmits the input disk number and the management disk stored in the disk management information storage device 300. The number is compared with the number to determine whether the same number exists. If the same number exists, the disc type and reproduction management information corresponding to the disc number are read, and the reproducing apparatus is set to a mode corresponding to the disc type, and the reproduction management information is set to the corresponding reproduction system. As a result, even when a disc change is performed, it is not necessary to read the reproduction management information each time, and the reproduction of the selected disk is immediately performed.

According to the above device, the disk storage device 5
No. 00 can store a plurality of types of disks, and can store a plurality of disks of the same type. The disk management means constructed by the microprocessor 207 and the storage device 300 is a disk storage device 500.
In order to manage the disks stored in the disk, information on the storage position of the disk, information on the type of the disk, and control information necessary for reproducing each disk is added to the additional information for management (disk number or title) of each disk. At the same time, it is stored in the storage unit in advance for each disk. Then, when the additional information of the disk is externally input, the search means constituted by the microprocessor 207 and the storage device 300 compares the input additional information with the additional information for management, so that the additional information matches. And reads out the storage position information of the disk, the type information of the disk, and the control information related to the additional information from the storage unit of the disk management means.

The disk management means includes a change determination means for determining whether the disk is replaced, added, or removed. When the disk is replaced or added, the type information and control information of the disk at the corresponding storage position are stored in the storage unit. Further, although not specifically shown in the figure, when a disk is extracted, it includes a setting means for canceling the type information of the disk at the corresponding storage position and the control information.
Further, the search means provides the storage position information of the disk read from the storage means to the disk changer 600, the type information of the disk to the selector 203 for selecting the disk reproduction system, and the disk reproduction system having selected the control information. By giving the signal to 205 or 206, the signal reproduction state of the entire apparatus is set.

Further, according to the above-mentioned apparatus, when it is desired to reproduce a CD for several minutes after reproducing one chapter of a DVD, the reproduction management information necessary for the reproduction is read in advance in the storage device. After the exchange of the disk to be reproduced is performed, smooth music reproduction is performed. Also, when the DVD is reproduced thereafter, the time for reading the reproduction management information from the disk is omitted.

The time at which the disk management information in the storage device 300 is updated may be started by the user giving a command from the operation unit.
If any one of the disks 0 is replaced or removed, a means for detecting this may be provided to automatically implement the update process.

Next, the format of the DVD will be described, and what kind of information exists as the reproduction management information will be described.

FIG. 6 schematically shows the recording data structure of the DVD 100.

The DVD 100 is a disk having a storage capacity of about 5 Gbytes on one side and constituted by bonding substrates, and a large number of disks from a lead-in area on the inner peripheral side to a lead-out area on the outer peripheral side of the disk. Recording tracks are arranged. Each track is composed of a large number of logical sectors, and various information (appropriately compressed digital data) is stored in each sector.

FIG. 7 shows a volume space of the DVD 100 of FIG.

As shown in FIG. 7, the volume space includes a volume and file configuration zone, a DVD video zone, and other zones. The volume and file configuration zones contain UDF (Universal Disk Format Specification
vision 1.02) The bridge configuration is described, and the data can be read by a computer of a predetermined standard. The DVD video zone has a video manager (VMG) and a video title set (VTS). The video manager (VMG) and the video title set (VTS) are each composed of a plurality of files. The video manager (VMG) is information for controlling a video title set (VTS).

FIG. 8 shows a video manager (VMG).
And the structure of a video title set (VTS).

The video manager (VMG) includes video manager information (VMGI) as control data and a video object set (VMGM) as data for menu display. VOBS). Also, backup video manager information (VMG) having the same contents as the VMGI
I).

The video title set (VTS) includes video title set information (VTSI) as control data and a video object set (VTSM) as data for menu display. VOBS)
And a video object set (VTSTT) for a title of a video title set which is a video object set for displaying video. VOBS).
It also has backup video title set information (VTSI) having the same contents as the VTSI.

Further, a video object set for displaying images (VTSTT VOBS) is composed of a plurality of cells. Each cell (Cel)
1) is assigned a cell ID number.

FIG. 9 hierarchically shows the relationship between the video object set (VOBS) and the cell (Cell) and the contents of the cell (Cell). When DVD playback processing is performed, for video breaks (scene change, angle change, story change, etc.) and special playback, a video object unit (VOBU) which is a cell (Cell) unit or a lower layer thereof
It is now handled in units.

Video Object Set (VOBS)
First, a plurality of video objects (VOBs) IDN
1 to VOB IDNi). Further, one video object includes a plurality of cells (C IDN1 ~
C IDNj). Further, one cell is composed of a plurality of video object units (VOBU). One video object unit (VOBU) is composed of one navigation pack (NV PCK), multiple audio packs (A PCK), multiple video packs (V PC
K), multiple sub-picture packs (SP PCK).

Navigation Pack (NV) PCK)
Are mainly used as control data for controlling the reproduction and display of data in the video object unit to which it belongs, and control data for performing data search of the video object unit.

The video pack (V PCK) is main video information and is compressed according to a standard such as MPEG. Sub picture pack (SP PCK) is sub-picture information having auxiliary contents with respect to the main picture. For example, movie subtitles. Audio Pack (A PCK)
It is audio information.

FIG. 10 shows a program chain (PG
C) shows an example in which the reproduction order of the above cells (Cells) is controlled.

As a program chain (PGC),
Various program chains (PGC # 1, PG # 1) are set so that the reproduction order of the data cells can be variously set.
C # 2, PGC # 3...) Are prepared. Therefore, the order of cell reproduction is set by selecting a program chain. The program chain is included in the video title set information (VTSI) and the video manager information (VMGI).

FIG. 10 shows an example in which programs # 1 to #n described by the program chain information (PGCI) are executed. The illustrated program is a video object set (VOB)
(VOB) in (S) IDN # s, C The contents after the cell specified by IDN # 1) are specified in order.

FIG. 11 shows video manager information (VM
GI) shows various tables. The video manager information (VMGI) includes a video manager information management table (VMGI). MAT), title search pointer table (TT) SRPT), video manager menu PGCI unit table (VMGM) PG
CI UT), parental management information table (PTL)
MAIT), video title set attribute information table (VTS) ATRT), Text Data Manager (T
XTDT MG), video manager menu cell address table (VMGM) C ADT), video manager menu video object unit address map (VMGM) VOBU ADMAP) is described.

FIG. 12 shows a video manager information management table (VMGI MAT).

VMG_ID is the video manager information.
This is an identifier of the file. VMG_EA is
The end address of the VMG is a logical block from the beginning of the VMG
Described in numbers. VMGI_EA is the end of VMGI
Describe the address as the number of logical blocks from the top of VMGI
ing. VERN is a version number. VMG_C
AT is a video manager category and has regional management information
And whether each region can be played in that region
ing. VLMS ID is a volume set identifier.
Volume number, volume number, volume
It shows the side and the like on which ium is described. VTS
It shows the number of Ns video title sets. PVR
The ID is an identifier unique to the provider. POS CD
Is a POS code. VMGI MAT EA is
VMGI This is the end address of the MAT. FP PGC
I SA is the first play program chain (F
P PGCI). VMGM VOB
S SA is VMGM VOBS start address, TT
SRPT SA is the first address of the title search pointer.
Less, VMGM PGCI UT Video Manager
Start of program chain unit table in menu
Address, PTL MAIT SA is parental management information
Report table start address, VTS ATRT SA
Is the start address of the attribute of the video title set, TX
TDT MG SA is beyond the text data manager
Head address, VMGM C ADT SA is a video
Start address of the manager cell address table, VMG
M VOBU ADMAP SA is a video manager
First address of the address map of the video object unit
It is less. Also, VMGM V ATR is a video
Video attribute of manager menu, VMGM AST N
s is the audio stream in the video manager menu
Number, VMGM AST ATR is a video manager
Menu audio stream attribute, VMGM SP
ST Ns is a sub-picture of the video manager menu
Streamer number, VMGM SPST ATR
Sub-picture stream attribute of the video manager menu
Sex, FP PGCI is the first play program
It is a chain.

By knowing the contents of the video manager information management table, it is possible to ascertain the start address and attributes for reading various data. Therefore, it can be used as the basis for reading data, setting the mode of the playback device, and the like. If at least the head address of the title set search pointer table is known, the title search pointer table described later can be read, and the reproduction mode can be realized. Information necessary for reproducing the corresponding video title set is also described in the video title set information (VTSI). This information is similar to the contents of VMGI described above.

FIG. 13 shows a title search pointer table (TT). (SRPT). Title search pointer table (TT SRP
T) has title search pointer table information and a title search pointer for each title.

FIG. 14 shows the contents described in the title search pointer table information. The number of title search pointers, the end address of the title search pointer table, and the like are described.

FIG. 15 shows the contents of the title search pointer.

Here, the title playback type, that is, whether the playback system is a single system or a multi-system is prepared. Also, the number of angles, that is, how many images captured from different angles in the playback system are recorded is described as the number of angles. Further, the number of title portions in the title, a parental identification field for title, a video title set number, and a start address of the present video title set are described.

When at least the title playback type and the start address of the present VTS are known from among the above TT SRPs, the video title can be reproduced.

The reproduction management information is not limited to the above, and the management information recorded on the disc may be read and stored so that more information can be used.

FIG. 16 shows the contents of the TOC recorded in the inner peripheral area of the CD.

The control 4 bits include the number of audio channels, emphasis, and digital data (CD-RO).
M). The address 4 bits describe a maker code or the like. Data 7
The 2 bits are the movement number, the absolute time at which each movement starts (PO
INT), the elapsed time in the movement, the number of frames, and the absolute time at which lead-out starts.

As described above, according to the present invention, a disk storage device capable of storing a plurality of types of disks and storing a plurality of disks of the same type is provided. It is possible to freely manage and improve operability. In particular, by holding the reproduction management information necessary for reproducing the disk in the storage device in advance, the reproduction can be performed with high continuity when the disk is replaced.

Next, in the disk storage device 500,
The following describes how to deal with a case where an external disk is replaced with an internal disk, a case where an external disk is newly added, and the like.

FIGS. 17, 18A, 18B, and 18C are views for explaining the basic operation of the disk storage device 500. FIG.

As shown in FIG.
0 is constituted by integrating a large number of disk holders 501, 502,... In the drawing, two disk holders 501 and 502 are shown as representatives. Disk holders 501 and 502,
Are formed on the inner peripheral surface of the inner peripheral surface of the disk so that the edge of the disk can enter. Disk holder 5
01 and 502, a hole 530 (the hole of the disc holder 502 is not shown in the figure) is formed at the bent portion.
3, the shaft 533 penetrates, and the entire disc holder is integrated. Notch portions 531 and 532 are formed on one side surface of the disk holders 501 and 502,
Here, the handle 540 is arranged. This handle 54
Reference numeral 0 also corresponds to the disk holder 501.

The handle 540 also has a hole 541 in the middle thereof through which the shaft 533 passes, and is attached to the notch 531. One end of the handle 540 and a piece 5
42, 543 are formed. These pieces 542, 5
43 is bent in the direction of the thickness of the disk holder 501. When the disk holder 501 and the handle 540 are integrated, a relief portion 532 that can accommodate the piece 542 is formed in the disk holder 501.

FIG. 18A shows a posture in which the entire disk holder of the disk storage device 500 is rotated about the shaft 533, and the disk holder 501 can receive the disk 101 from the outside. At this time, the handle 540 is moved by the corresponding disc holder 5 so that the state shown in FIG.
01 is attached.

When the automatic reproduction is actually executed after the external disk is stored, the entire disk holder is
It is rotated about 33, and assumes a posture as shown in FIG. 18B. Now, assuming that the disk 101 is taken out by the disk changer 600, the lever 6 corresponding to the handle 540 is moved from the disk changer 600.
01 grows. Then, as shown in FIG. 18C, the handle 540 rotates, and the piece 542 of the handle 540 acts so as to push out the disk 101. As a result, the disc 101 is received by the disc changer 600 and loaded into the playback device 200.

The posture of the disk holder shown in FIG.
The posture of the disk holder shown in the external access state and FIGS. 18B and 18C is the internal access state. The attitude of the folder is detected by, for example, an optical switch, and recognized by the microprocessor 207. Whether a folder has a disk or not is determined by a contact switch provided on the folder itself,
Alternatively, it is detected by optical switch means using a light emitting diode and a light receiving diode, and the presence or absence of a disk in each disk folder is recognized by a microprocessor.

FIG. 19 shows the operation of the microprocessor when the disk holder of the disk storage device 500 is externally accessed. This flowchart shows that when a new disc is inserted from outside,
9 is a flowchart of reading only management information of the new disk and storing the management information in the storage device 300.

First, the postures of the disk holders 501 and 502 are detected (steps A1 and A2). If the disk holder is in the internal access state, it is determined whether or not a disk has been inserted (step A3). If a disk has been inserted, it means that a new disk has been inserted into the disk storage device 500, and the disk number indicating the folder position where the disk has been inserted is stored in the temporary storage unit (step A4). . If it is determined in step A3 that the disk has not been inserted, it is determined whether the disk has been removed (step A3).
5). When the disk is removed, the information of the corresponding disk number is canceled. That is, in the table shown in FIG. 2, the corresponding disk type and management information are canceled.

If the attitude of the disk holder is in the internal access state in step A2, it is determined in step A7 whether additional information has been input.
When the additional information is input, the corresponding disc is loaded into the playback device and the playback is executed as described above.

If there is no additional information input, step A
Then, it is determined whether or not there is a disk number in the temporary storage unit. If there is no disc number, it means that no disc has been inserted, and the process returns to step A2. However, when the disk number exists, the management information of the disk corresponding to the disk number is read in advance. Then, the read management information is stored in the disk management information storage device 300 shown in FIG. 2 (step A).
9). The process of reading the management information is as described with reference to FIGS.

It is determined whether or not the disk number stored in the temporary storage unit remains. If the disk number remains, the management information of the disk corresponding to the disk number is read. It returns to step A2.

The above-mentioned flowchart is a flowchart in which, when a new disk is inserted from outside, only the management information of the new disk is read and stored in the storage device 300. However, irrespective of such operations, for example, periodically or when a new disc is loaded,
The management information may be read for all the disks loaded in the disk storage device 500.

FIG. 20 shows another example of the disk storage device. This disk storage device 900 is, for example, 3
It can store two disks and also functions as a disk changer. 901 is a base,
At the center of the base 901, a rotating chassis 902 driven by a motor for disc change is rotatably mounted by a shaft 903. And base 90
A disk drive unit 904 is formed in a part of the disk drive 1, and a turntable and a disk motor (not shown) are mounted at this position. At this position, the disk placement portions 9a, 9b,
9c selectively rotates and moves. The state shown in the figure shows a state where the disk placement unit 9a has moved to the disk drive unit 904.

FIG. 21 shows an example of the external operation input unit 700.
It is the figure which showed in more detail.

The external operation input unit 700 is adapted to set a disk number as additional information when reproducing a disk. In order to reserve the reproduction, the key 703 is operated, and then either the DVD or the CD is determined by operating the keys 701 and 702. Next, the disc number is input by operating the ten keys. To play all the specified discs from the beginning, the enter key 705 is operated here. To play a part of the specified disc, the chapter and track designation key 706 is operated.

Next, a chapter number or a track number is input using the numeric keypad. To play the reserved disks one after another, the start key 704 is operated. The reservation information sent from the external operation input unit (remote controller) 700 is given to the microprocessor 207 via the receiving unit 710. That is, the data received by the receiving unit 710 is
11 and stored in the interface memory 212. In the example shown in the figure, the playback order is DVD, DVD,
An example in which a CD is reserved is shown. First DVD
Shows an example in which the disc number is 10, and the reproduction of chapter 4 is reserved. The next DVD is an example in which the disc number is 12 and the reproduction of chapter 3 is reserved. The next reserved disk is a CD, the disk number of which is 23, and an example in which the reproduction of the track (song) number 12 is reserved.

[0097]

As described above, according to the present invention,
A disk storage device capable of storing a plurality of types of disks or a plurality of disks of the same type is provided, so that the disks can be freely managed, operability is improved, and continuity can be achieved when changing disks. .

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a view showing an example of a table of the disk management information storage device of FIG. 1;

FIG. 3 is a flowchart for explaining the operation of the apparatus of FIG. 1;

FIG. 4 is a flowchart shown to explain the operation of the apparatus of FIG. 1;

FIG. 5 is a flowchart shown to explain the operation of the apparatus of FIG. 1;

FIG. 6 is an exemplary view showing a volume space of a DVD.

FIG. 7 is a diagram shown for explaining a volume space of the DVD.

FIG. 8 is a view for explaining a data array configuration of the DVD.

FIG. 9 is a diagram shown for explaining a data array configuration of the DVD.

FIG. 10 is a diagram shown for explaining a program chain for DVD reproduction.

FIG. 11 is a diagram shown to explain the configuration of a logical format of a DVD.

FIG. 12: VMGI of FIG. The figure which shows the structure of MAT.

FIG. 13 is a diagram shown for explaining the configuration of the logical format of the DVD.

FIG. 14 shows the TT of FIG. The figure which shows SRPTI.

FIG. 15: TT of FIG. The figure which shows SRP.

FIG. 16 is a diagram showing an example of the contents of the TOC of a CD.

FIG. 17 is a perspective view showing an example of a disk holder of the disk storage device.

FIG. 18 is an operation explanatory view for explaining the operation of the disk holder.

FIG. 19 is a flowchart shown to explain the operation of reading disk detection means and management information under the control of the microprocessor.

FIG. 20 is a diagram showing another example of the disk storage device.

FIG. 21 is an operation explanatory diagram shown to explain an operation related to the external operation unit and the multiprocessor;

[Explanation of symbols]

100: optical disk, 200: compatible playback device,
201: disk motor, 202: pickup device,
203: selector, 205: DVD playback system, 206: C
D playback system, 207 microprocessor, 300 disk management information storage device, 400 servo device, 500
Disk storage device, 600 ... Disk changer, 7
00: external operation input unit.

Claims (14)

[Claims] 1. A disk storage device for storing a plurality of disks, and storage position information of each disk, type information of each disk, and reproduction of each disk in order to manage the disks stored in the disk storage device. Disk management information including control information necessary to perform the disk management together with internal additional information for managing each disk in a storage unit for each disk in advance, disk playback signal processing means, When the information is input from the outside, the external additional information is compared with the internal additional information to search for the internal additional information for the matching external additional information, and the storage position information of the disc related to the internal additional information, The disc management information including disc type information and control information is read from a storage unit of the disc management means, and the reproduction signal is read. And a search means provided to the signal processing means. 2. The disk storage device according to claim 1, wherein the disk storage device stores a plurality of disks of different types and has a holder for storing a plurality of disks of the same type.
A disc reproducing device provided with the auto chainer described in the above. 3. The disk management means includes: means for detecting that an internal disk of the disk storage device has been replaced with an external disk; and, when the internal disk and the external disk have been replaced, the external disk. Means for reading the disc type information and control information, and rewriting the disc type information and control information corresponding to the internal disc in the storage unit to the newly read disc type information and control information. A disk reproducing apparatus provided with the autochanger according to claim 1, wherein: 4. The disk management means includes: means for detecting that an external disk has been added to the disk storage device; and when the external disk has been added, type information of the added disk; 2. The apparatus according to claim 1, further comprising means for reading control information and writing the read type information and control information of the disk in the storage unit. 5. The disk management means comprises: means for detecting that an internal disk of the disk storage device has been removed; and, when the internal disk has been removed, a disk in the storage unit corresponding to the internal disk. 2. The apparatus according to claim 1, further comprising means for canceling the type information and the control information. 6. An apparatus according to claim 1, wherein said disk management means includes means for detecting presence of a disk in a disk holder of said disk storage device. 7. A disk reproducing apparatus having an autochanger according to claim 1, wherein said disk management means has means for detecting that there is no disk in a disk holder of said disk storage device. 8. The disk management means, when an external disk is stored in the disk storage device, reads the type information and control information of the external disk, and reads the external disk set in the storage unit. 2. The apparatus according to claim 1, wherein the read type information of the external disk and the control information are stored only in an information storage unit. 9. The disk management means, when an external disk is stored in the disk storage device or when an internal disk of the disk storage device is removed, all the disks stored in the disk storage device Read each type information and each control information,
2. The disk reproducing apparatus provided with an autochanger according to claim 1, wherein the type information and the control information are recorded in the storage unit in association with the disk identification information. 10. The disk management means periodically reads each type information and each control information of all disks stored in the disk storage device, and stores each type information and each control information in the storage unit. 2. A disk reproducing apparatus provided with an autochanger according to claim 1, wherein information is recorded in correspondence with each disk identification information. 11. A disk storage device capable of storing a plurality of types of disks and storing a plurality of disks of the same type, and a disk storage device for managing each disk stored in the disk storage device. Disk management means for storing in a storage unit for each disk in advance the storage position information of the disk, type information of each disk, and control information necessary for reproducing each disk together with internal additional information of each disk, When the external additional information of is input from outside,
By comparing the external additional information with the internal additional information, the internal additional information that matches the external additional information is searched, and the storage position information of the disk related to the internal additional information, the disc type information, and the control A disk reproducing apparatus provided with an autochanger, comprising: a search unit that reads information from a storage unit of the disk management unit. 12. The disk management means includes means for detecting replacement, addition, or removal of a disk, and when the above-mentioned disk replacement or addition has been performed, the disk management means corresponding to the replacement or addition. Means for storing the type information and control information of the disk at the storage position in the storage unit and canceling the type information and control information of the disk at the corresponding storage position when the disk is extracted. A disc reproducing apparatus comprising the autochanger according to claim 11. 13. The search means provides the storage position information of the disk read from the storage means to a disk changer, provides the type information of the disk to a selector for selecting a disk reproduction system, and selects the control information. 12. The disk reproducing apparatus provided with an autochanger according to claim 11, wherein a signal reproducing state of the entire apparatus is set by giving the signal to the disk reproducing system. 14. The disk storage device is divided into a first type of disk storage folder group and a second type of disk storage folder group. 12. A disk storage position information, a disk type information, and control information necessary for reproducing each disk to be stored in the storage means based on a result of the determination. Disc player with auto changer.