JPH08306170A - Medium information retrieving device, recording medium for information retrieval, reproducing control device and reproducing system - Google Patents

Abstract

PURPOSE: To easily retrieve contents of recorded information in multiple recording media. CONSTITUTION: This optical disk information retrieving device 10 reads out each specific identification information pre-recorded in multiple optical disks D1 , D2 , D3 ,...Dn housed in a disk housing part 11, and detects index information for the medium identification from a database 14 in accordance with this read- out specific identification information. A retrieval controller 13 retrieves from the electrodes 14 the contents of the recorded information corresponding to the index information for the medium identification detected above.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medium information retrieval device for retrieving recorded content information of a plurality of target recording media, an information retrieval recording medium such as a database, and the information retrieval recording medium. The present invention relates to a reproduction control device for controlling a reproduction process of a selective reproduction device for accommodating a plurality of recording media and selectively reproducing, and a reproduction system including the selective reproduction device and the reproduction control device.

[0002]

2. Description of the Related Art Recently, one disk is taken out from a disk housing section in which a plurality of recording media, for example, read-only optical disks are housed, and information signals such as tone signals recorded on the taken-out disks are reproduced. Disc changer player systems for performing have become known.

For example, as a disc changer player system that handles a compact disc, which is a kind of a read-only optical disc, various types such as a disc changer player system that can store about 5 compact discs to a compact disc player that can store 100 compact discs are widely used. Also, a disc changer player system that handles an optical disc having a diameter of 64 mm has come into consideration.

The disc changer player system comprises a selective reproduction device for accommodating a plurality of discs and selectively reproducing, and a reproduction control device for controlling the selective reproduction device. In the selective reproducing apparatus, one disc is selected from the plurality of discs accommodated in the disc accommodating unit, so that the disc holding unit for accommodating and retaining each disc is given a serial number for convenience. The serial number is defined as the number of the disc stored and held in each disc holding unit, that is, the disc number. Then, the user specifies the disc number to specify the disc stored and held in each disc holding portion. That is, in a disc changer player system having a selective reproducing device having a disc storage portion capable of storing a large number of discs, the serial number given to each disc holding portion of the disc storage portion is designated as the disc number. By doing so, the reproduction control device controls the selective reproduction device so that the discs stored in the disc holding portions are specified and reproduced.

When the user specifies the disc number, he or she operates a number input key such as a ten-key on the operation panel to input the disc number of a desired disc.

[0006]

By the way, it is difficult for a user to always remember the contents of a disc and the disc number in correspondence with each other. Particularly, a disc that handles a plurality of discs such as 100 discs. Almost impossible with changer player systems. Therefore, you cannot enter the disc number for the disc you want to hear,
After all, I had to find the desired disc by playing them one by one and listening to the beginning part.

Therefore, recorded content information such as an album name and a song name is registered in a storage unit such as a random access memory (RAM) in correspondence with each disc number using a character input key or the like, and when the disc is reproduced, By inputting the disc number, the recorded content information is displayed on the display together with the disc number, and the operability is improved.

However, the operation of registering the recorded content information in the RAM by using a character input key or the like in association with each disk number is burdensome for the user.

Further, in the disc changer player system, in order to select an arbitrary disc from a plurality of discs, the disc number is increased / decreased by using a specific operation key or a rotary operation key for performing a toggle operation. Since the selection was performed while checking the recorded content information, the user had to make the user repeat the same operation several times in order to select the target disc or song, and the reproducing operation was troublesome. there were.

In the case of an optical disc having a diameter of 64 mm, there is a type of disc in which the recorded content information can be recorded as program attribute information on the disc. When the recorded content information is read and displayed, Similarly, it takes time and effort to find each one, and normally, the disk name is recorded in alphabetical characters, so even if it is displayed, it is difficult to read.

In addition, such a disc changer player system that handles 100 discs may be convenient in use if the number of discs to be stored increases, and in some cases it is possible to select the disc to be reproduced depending on the music genre. There is a demand for a system that enables a reproduction method.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a medium information search device capable of easily searching recorded content information of a plurality of recording media. Another object of the present invention is to provide an information search recording medium which records recorded content information such as a title of a desired recording medium together with index information for medium identification to facilitate the operation of the medium information searching apparatus. . Another object of the present invention is to provide a reproduction control device that facilitates the reproduction operation of the selective reproduction device by using the recording medium for information retrieval. further,
Another object is to provide a reproduction system including the above-mentioned reproduction control device that facilitates the reproduction operation of the selective reproduction device.

[0013]

In order to solve the above-mentioned problems, a medium information search apparatus according to the present invention reads and reads each unique identification information recorded in advance in a plurality of target recording media. The index information for medium identification is detected from the recording medium for information search according to the unique identification information, and the recorded content information corresponding to the detected index information for medium identification is searched.

Further, in order to solve the above-mentioned problems, the information search recording medium according to the present invention has recorded content information of a large number of recording media and unique identification information recorded in advance in the large number of recording media. Is provided with index information for medium identification in a high-speed search form.

Further, in order to solve the above problems, the reproduction control apparatus according to the present invention reads the unique identification information recorded in advance in the plurality of target recording media, and reads the unique identification information read. Media information retrieval control means for detecting the medium identification index information from the information retrieval recording medium according to the above, and retrieving the recorded content information corresponding to the detected medium identification index information, and the medium. Storage means for storing the record content information retrieved by the information retrieval control means, display means for displaying the record content information stored by the storage means, and selection for the record content information displayed by the display means A selection operation means for performing an operation and a command for the selection reproduction device to reproduce the recording medium corresponding to the recording content information selected by the selection operation means. Comprising a reproduction control means for transmitting a command signal.

In order to solve the above-mentioned problems, the reproducing system according to the present invention uses the above-mentioned information retrieving recording medium and a selective reproducing apparatus which accommodates a plurality of recording media and selectively reproduces the information. And a reproduction control device for controlling a reproduction process of the selective reproduction device, wherein the selective reproduction device includes transmission means for transmitting the unique identification information read from each of the plurality of stored recording media. , The unique identification information recorded in advance on the plurality of recording media is read, the index information for identifying the medium is detected from the information search recording medium in accordance with the read unique identification information, and the detected information is detected. Medium information search control means for searching the recorded content information corresponding to the index information for medium identification, and the recorded content information searched by the medium information search control means are stored. Storage means, display means for displaying the record content information stored in the storage means, selection operation means for performing a selection operation on the record content information displayed on the display means, and the selection operation means. And a reproduction control means for transmitting a command signal to the selective reproduction device so as to reproduce the recording medium corresponding to the selected recording content information.

[0017]

The unique identification information recorded in advance on a plurality of target recording media is read, and the index information for identifying the medium is detected from the information search recording medium according to the read unique identification information. Since the recorded content information corresponding to the detected index information for identifying the medium is searched, the recorded content information of a plurality of recording media can be easily searched.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a medium information search device, an information search recording medium, a reproduction control device and a reproduction system according to the present invention will be described below with reference to the drawings.

First, an embodiment of the medium information retrieval apparatus will be described as a first embodiment with reference to FIG. The first embodiment, as shown in FIG. 1, for example from a plurality of optical disks _{D 1, D 2, D 3} ··· D n , such as a compact disk that is plural housed in the disk housing portion 11 The optical disc information search device 10 searches for recorded content information such as an album name and a song name. The optical disc information retrieval device 10 is an information retrieval recording medium having recorded content information of a large number of optical discs and index information for medium identification based on unique identification information recorded in advance on the large number of optical discs. The database 14 is used to retrieve the recorded content information from the plurality of optical discs D ₁ , D ₂ , D ₃ ... D _n .

This optical disk information retrieval device 10 includes a plurality of optical disks D ₁ stored in a disk storage section 11,
D ₂ , D ₃ ... D _n are recorded in advance with the respective unique identification information read by the unique identification information reading section 12, and the database 14 is used for identifying the medium according to the read unique identification information. The index information is detected, and the recorded content information corresponding to the detected index information for identifying the medium is searched from the database 14 by the search controller 13, which is a control means.

The search controller 13 is a random access memory (hereinafter referred to as RAM) 15 that stores the unique identification information read by the unique identification information reading unit 12.
A central processing unit (hereinafter referred to as CPU) 16 for confirming the coincidence between the database 14, the unique identification information stored in the RAM 15, and the index information for medium identification recorded in the database 14. And the recorded content information corresponding to the index information for identifying the medium is searched from the database 14. The recorded content information searched by the search controller 13 is displayed on a display unit 18 such as a display via a display controller 17 such as a graphic controller.

As the database 14, a read only memory (hereinafter referred to as ROM) made of a semiconductor memory or a CD-ROM is used. For example, the pattern of each file in the database 14 in the case of ROM is shown in FIG. Moreover, the state in each file is shown in FIG.

The database 14 is provided with recorded content information of a large number of optical disks and index information for medium identification in which the unique identification information recorded in advance on the large number of optical disks is in a high-speed search form. That is, it becomes a specific example of the recording medium for information retrieval according to the present invention.

First, as shown in FIG. 2, each of the files F ₁ and F ₂ in the database 14 is a TOC (Table of Content) recorded in the lead-in portion of the optical disc.
s) The information is index information for medium identification, and is arranged in front of the recorded content information such as album name, performer name, and song name. The file F ₁ and the file F ₂ are separated by an identification code EOF (abbreviation of end of file) indicating the end of the file.

Here, the well-known TOC information will be described. In an optical disc such as a compact disc, the format for recording data is composed of a TOC region, which is a program management region, a program region, and a program end region called a so-called lead-out, from the inner side to the outer side of the disc. There is.
In this compact disc, at least one or more music data programs are recorded in the program area, and time information for each program of the music data and total time information of all programs are managed by the TOC information in the TOC area. . That is, in an optical disc such as a compact disc, the TOC information in the TOC area manages time information for each program of music data in the program area and total time information for all programs. This TOC information is unique to each optical disc.
Therefore, in an optical disc such as a compact disc, the TOC information can be used as the unique identification information of each disc.

Next, the detailed structure of the contents of the files in the database 14 will be described using the file F ₁ as an example with reference to FIG. In FIG. 3, recorded content information such as album name, performer name, and song name is recorded in the recorded content information area 27. The TOC information is recorded in the TOC information area 28. Since the TOC information is unique to each optical disc as described above, it becomes the unique identification information of each disc. In this example, the TOC information, which is the unique identification information, is directly used as the index information for medium identification. Since TOC information is originally binary data,
The search by the CPU 16 can be performed at high speed. Using the database 14 as described above, the optical disc information retrieval apparatus 10
The recorded content information of the plurality of optical disks D ₁ , D ₂ , D ₃ ... D _n housed in the disk housing portion 11 is searched.

Here, the database 14 may have a structure as shown in FIG. That is, only the TOC information, which is the index information for medium identification, may be collectively arranged in the TOC information area, and the recording content information may be collectively arranged in the recording content information area after the completion of the TOC information. The TOC information recording area and the recorded content information area may be reversed. In either case, it is necessary that each TOC information and each recorded content information can be recognized in a one-to-one relationship.

Next, a series of processing for retrieving recorded content information will be described. The unique identification information reading unit 12 configured as shown in FIG. 5 reads the TOC information which is the unique identification information from the optical disc D _X which is selectively taken out from the disc storage unit 11 by the transport mechanism 20 and loaded at the reproduction position. . Here, the unique identification information reading unit 12 includes a spindle motor (indicated as SPM in the figure) 21, an optical head 22, a sled motor 23, a signal processing circuit 24, and a servo circuit 25. The SPM 21 rotationally drives the chucked optical disc D _X. The optical head 22 irradiates the innermost circumference of the rotating optical disc D _{X with} a laser beam to read the information recorded on the innermost circumference of the optical disc D _X. The information read by the optical head 22 is supplied to the signal processing unit 24. The signal processing unit 24 detects the TOC information from the above information, and R of the search controller 13 is detected.
Supply to AM15. Further, the signal processing unit 24 generates a tracking error signal, a focus error signal, etc. from the above information and supplies them to the servo circuit 25. Servo circuit 2
Reference numeral 5 performs tracking control, focus control, and sled control of the optical head 22 according to these signals.

The TOC information supplied to the RAM 15 is stored in the RAM 15 in the order of a plurality of optical disks stored in the disk storage unit 11 as shown in FIG. That is, the TOC information for a plurality of optical disks stored in the disk storage unit 11 is the TOC information T _{1 of the first} optical disk, the TOC information of the second optical disk.
Information T ₂ , TOC information T _{3 of the third} optical disc ...
RAM 15 as TOC information T _n of the _nth optical disk
Are stored in order. Each TOC information T ₁ , T ₂ , T ₃ ...
-T _n is separated by the recognition code EOF. Further, the TOC information for the optical discs accommodated in the disc accommodating portion 11 is separated by an end-of-data recognition code EOD.

Then, each TOC stored in the RAM 15
It is confirmed whether or not the index information for identifying the medium which matches the information T ₁ , T ₂ , T ₃ ... T _n exists in the database 14. This confirmation is executed by calculation in the CPU 16.

Each TO is calculated by the CPU 16.
When it is assumed that there is index information for identifying the medium which matches the C information T ₁ , T ₂ , T ₃ ... T _n , the database 14 is searched for the recorded content information corresponding to the index information. Is
Each TOC information T ₁ on the RAM 15, T _2, is recorded together with the T ₃ ··· T _n. The recording of the recorded content information in the RAM 16 is also performed in correspondence with the storage position number indicating the storage position of the disk stored in the disk storage unit 11.

The recorded content information recorded on the RAM 16 in association with the storage position number together with each TOC information T ₁ , T ₂ , T ₃ ... T _n is displayed by the display unit 18 under the control of the display controller 17. Is displayed so as to correspond to the storage position number.

As described above, the display section 18 includes a plurality of optical disks D ₁ , D ₂ , D ₃ , ...
Since the recording contents information · · D _n is displayed together with the storage position number, the user, a plurality of optical disks D ₁ housed in randomly disk housing portion _{11, D 2, D 3 ···} D n is It is possible to easily know what kind of optical disk it is.

Although the optical disk information retrieving apparatus 10 uses the built-in database 14, it may use an external database connected via a network, for example.

Further, in the optical disc information searching apparatus 10, the unique identification information recorded in the database 14 is set to T.
Although the OC information is used, the character information or the like relating to the playing time may be simply used as the unique identification information. However, when the unique identification information in this case is compared with the TOC information on the RAM 15, it is desirable that the unique identification information is expanded into the medium identification index information in the high-speed search form. This is because the optical disk D ₁ , which is stored in the disk storage unit 11, is stored in the RAM 15.
This is because the TOC information of D ₂ , D ₃ ... D _n is read and stored by the unique identification information reading unit 12, and the above recorded content information is searched from the database 14 based on this TOC information. This is because the TOC information cannot be compared as it is.

Next, a second embodiment of the reproduction control device and the reproduction system will be described. The second embodiment is a disc changer player system which selectively reproduces one of n optical discs. This disc changer player system
As shown in FIG. 7, it comprises a selective reproduction device 30 for accommodating a plurality of optical disks such as n discs and selectively reproducing, and a reproduction control device 50 for controlling the reproduction processing of the selective reproduction device 30.

The reproduction control device 50 stores the recorded content information of a large number of recording media and the index information for medium identification, which is preliminarily recorded in the large number of recording media and in which each unique identification information is in a high-speed search form. Using the information retrieval recording medium provided, that is, the ROM 51b that is a database, the reproduction process performed by the selective reproduction device 30 is automatically controlled.

The selective reproducing apparatus 30 includes a controller 39 which is a transmitting means for transmitting the TOC information which is the unique identification information read from each of the _n optical disks D ₁ , D ₂ , D ₃ ... D _n accommodated. I have it.

Further, the reproduction control device 50 reads the respective unique TOC information transmitted from the controller 39, and the database 5 according to the read TOC information.
1b, the medium information search control means for detecting the medium identification index information and searching the recorded content information corresponding to the detected medium identification index information, and the recording searched by the medium information search control means. A RAM 51c that is a storage unit that stores content information, a display unit 60 that displays the recorded content information stored in the RAM 51c, and a selection operation that performs a selection operation for the recorded content information displayed on the display unit 60. And a reproduction control means for transmitting a command signal to the selective reproduction device 30 so as to reproduce the optical disc corresponding to the recording content information selected by the selection operation commander 61. Here, the medium information search control means and the reproduction control means are
It is the same controller 51.

First, the detailed structure of the selective reproduction device 30 will be described. A plurality of n disks D _{1 to} D _n are stored in the disk storage unit 31. Each of the disks D _{1 to} D _n is selectively taken out by the transport mechanism 32,
It is loaded at the playback position as _x . The loaded disk D _x is chucked and then rotationally driven by a spindle motor (SPM) 33. S
The disc D _x rotated by the PM 33 is irradiated with laser light from the optical head 34.

The optical head 34 irradiates the rotating disk D _x with laser light to read the information recorded on the disk D _x . The information read by the optical head 34 is supplied to the reproduction processing unit 36. The reproduction processing unit 36 first generates an RF signal, a tracking error signal, a focus error signal, and the like, which become reproduction data, by processing the detector output of the optical head 34.

Then, the RF signal is subjected to EFM demodulation, CIRC decoding, etc. to obtain reproduced digital data. When an optical disk having a diameter of 64 mm is used as the optical disk, audio compression decoding is further performed to obtain reproduced digital data.
The reproduced digital data output from the reproduction processing unit 36 is converted into L and R channel analog audio data by the D / A converter 37 and output.

The tracking error signal and the focus error signal are supplied to the servo circuit 38. Then, the servo circuit 38 performs tracking control, focus control, and sled control according to these signals. That is, a focus drive signal is applied to the biaxial mechanism holding the objective lens in the optical head 34 to drive the objective lens in the direction of moving toward and away from the disk D _x , thereby performing focus control. Further, a tracking drive signal is applied in the direction of the secondary mechanism to drive the objective lens in the radial direction of the disc D _x to perform tracking control. Further, the low frequency component of the tracking error signal is extracted to generate a sled drive signal, and the sled mechanism 35 is driven to drive the optical head 3
The entire 4 is moved in the radial direction of the disc D _x .

Further, the reproduction processing unit 36 sets the reproduction data to P
A spindle error signal is generated from the clock obtained by injecting the LL circuit. This is supplied to the servo circuit 38, and the servo circuit 38 controls the rotation of the spindle motor 33 to a constant linear velocity (CLV).

Here, the SPM 33, the optical head 34, the reproduction processing section 36 and the servo circuit 38 constitute the above-mentioned unique identification information reading section.

Further, the reproduction processing section 36 and the servo circuit 38.
Is controlled by the controller 39 formed by a microcomputer. Controller 39
Is composed of a CPU 39a, a ROM 39b, and a RAM 39c, and controls the reproduction processing unit 36 and the servo circuit 38 according to a user's operation or an operation program stored in the ROM 39b.

Further, the controller 39 causes the disk selection driver 40 to drive the carry motor 41 in response to, for example, the user inputting the number of the disk to be played, or the play control signal from the play control device 50, and the carry mechanism 32 is moved to the storage position where the disc is stored. This storage position is managed by the storage position number, which is the disc number. And the controller 3
In the case of 9, the disc stored in the storage position is taken out and loaded.

The user uses the input section 42 to input the disc number of the disc to be reproduced. Various keys are provided on the input unit 42 so that a user can input an operation, for example, select and set a reproduction mode such as reproduction, fast-forward, fast-reverse, stop, disc number designation, program reproduction, shuffle reproduction, and continuous reproduction. It is provided. Also,
In some cases, it is possible to input characters. Further, the controller 39 displays the number of the disc currently being reproduced, the track number, and the like on the display unit 43 such as an FL tube.

In the case of an optical disc having a diameter of 64 mm, the character information such as the disc name is recorded as the TOC information as described above. However, when these character display information is read during reproduction, Controller 3
Reference numeral 9 causes the display unit 43 to display the character display information such as the disc name and the track name. Furthermore, in the case of CD,
It is not possible to record characters on the disc itself, but for example, the user can make the input section 4 correspond to the disc number.
By inputting character information such as a disc title from 2, the controller 39 can store it in the RAM 39c. In such a case, the controller 3
9 can read character information according to the disc number to be reproduced and display it on the display unit 43.

The controller 39, as described above, stores the n optical disks D ₁ , D ₂ , D ₃ ...
T which is the unique identification information read from D _n
The OC information is transmitted to the reproduction control device 50 side.

Of course, the controller 39 can send and receive various data and command signals in addition to the TOC information to and from the reproduction control device 50.

For example, as described above, the controller 39 can read the information regarding the program attribute information and transmit it to the reproduction control device 50 when handling an optical disc with a so-called attribute information such as an optical disc having a diameter of 64 mm. Here, the optical disc with attribute information means, in addition to the TOC information such as the time information, name information of the optical disc, name information for each program recorded in the program area,
It is an optical disc capable of recording TOC information relating to program attribute information, which is composed of at least one of the program type information, a code number for identifying the disc-shaped recording medium, and message information relating to the program.

Next, a detailed structure of the reproduction control device 50 will be described. The controller 51 stores a RAM 51c for storing the TOC information transmitted from the controller 39, a ROM 51b serving as the database, the TOC information stored in the RAM 51c, and index information for medium identification recorded in the ROM 51b. It is provided with a CPU 51a for confirming coincidence by calculation. The database, which is the ROM 51b, is configured as shown in FIGS.

In the disc changer player system of the second embodiment, a desired optical disc is selected from the recorded content information corresponding to each of the plurality of optical discs displayed on the display unit 60, and the optical disc is selected and reproduced by the reproducing apparatus. 30 can be regenerated. In this case, the above-mentioned recorded content information on the display unit 60 is the selection operation commander 6
Selected by 1. The selection operation commander 61 transmits a command signal by infrared rays or radio waves. This command signal is received by the remote controller input unit 53, and the controller 51
Is determined by. Then, the pointer 62 is displayed on the display unit 60 to execute the selection operation.

The controller 51 can also send and receive data and command signals to and from the controller 39 of the selective reproduction device 30. This transmission / reception may be data bus connection or optical transmission by infrared rays or the like. RA
M51c is an S-RA with a power backup configuration.
It is formed of M, a non-volatile memory, or the like, and is configured so that data is not erased even when the power is turned off. Also, ROM
51b is also used as a recording medium for recording command data of the CPU 51a.

The recorded content information read from the ROM 51b by the controller 51 is written in the RAM 51c by the address control of the CPU 51a. This RAM51
Character display information input by the user from the input unit 52 is also written in c. Further, TOC information relating to the program attribute information transmitted from the controller 39 is also stored in the RAM 51c by the address control of the CPU 51a. The program attribute information can be directly retrieved from the optical disc with the program attribute information without relying on the index information for identifying the medium as described above.

The recorded content information and the program attribute information stored in the RAM 51c are displayed on the display unit 60 under the control of the graphic controller 54. Further, the graphic controller 54 bypasses, for example, a video signal from a TV tuner or a video signal from a laser disk as an external video input signal from the input terminal 58, supplies the video signal to the display unit 60, outputs the video, and outputs various characters. It is also possible to superimpose images on these images and display them. Further, an image serving as the pointer 62 can be displayed according to the position designation on the screen of the controller 51.

That is, the command information transmitted from the selection operation commander 61 is received by the remote control input section 53 and converted into an electric pulse train signal, and the controller 5
1 is supplied. The controller 51 specifies the position of the pointer 62 according to the electric pulse train signal. Here, the selection operation commander 61 can output x, y displacement commands by, for example, each speed detection unit, acceleration detection unit, or a key for designating a moving direction, and can also output an enter command by an enter operation or the like. It should be configured in. The selection operation commander 61 may be connected to the reproduction control device 50 by wire. In this way, the selection operation commander 61 uses the pointer 62 to perform a selection operation on the recorded content information, the character information, and the program attribute information displayed on the display unit 60.

In the reproduction control device 50, the database is the ROM 51b, but the CD-ROM 55 may be used exclusively. Further, an external database connected via the net 56 may be used.

The operation of the present embodiment having such a configuration will be described below with reference to the flowchart of FIG. Here, the description of the operation according to the manual input of the character information by the user is omitted. Further, the built-in ROM 51b is used as the database.

First, a plurality of n discs D _{1 to} D _n such as optical discs that the user appropriately holds are stored in the disc storage unit 31.
To store.

Then, as shown in step S1 of FIG. 8, the controller 51 determines whether or not the TOC information taking switch (SW) 57 for taking the TOC information is pushed. When the controller 51 determines that the TOC information take-up SW 57 has been pressed, the controller 51 proceeds to step S
As shown in 2, the TOC information transmission request is output to the selective reproduction device 30.

Selective playback device 3 for the TOC information transmission request
When the controller 39 of 0 receives, as shown in step S3, the above-mentioned unique identification information reading section, all the optical disks D ₁ , D ₂ , stored in the disk storage section 31,
D ₃ read the TOC information of ··· D _n. The read TOC information is supplied to the RAM 51c of the controller 51 by the controller 39. And RAM51
c stores the TOC information.

This step S3 can be divided as shown in FIG. That is, first, as shown in step S10, the counter for the disk storage position number is set to 1, and then, as shown in step S11, the TOC information T ₁ of the first (first) optical disk is read out and shown in the RAM 51c in FIG. To memorize. One optical disc TO
At the end of the C information T ₁ , a recognition code EOF is added as shown in step S12 to distinguish it from other TOC information T ₂ . Then, as shown in step S13, the disc storage position number counter is incremented to read the TOC information of the second and subsequent optical discs, and the RAM 51 is read.
It is stored in c as shown in FIG. Finally, whether or not the TOC information of all the optical discs D ₁ , D ₂ , D ₃ ... D _n has been read and stored in the RAM 51c is determined in step S1.
It is judged in 4. If all the TOC information is stored here, the recognition code EOD is displayed as shown in step S15.
Is added.

Next, the controller 51, as in step S4 shown in FIG. 8, is a ROM which is a database of the index information corresponding to the TOC information stored in the RAM 51c.
Search on 51b.

This step S4 can also be divided as shown in FIG. That is, as shown in step S20, the controller 51 causes the TOK information T ₁ , T ₂ , T
₃ ... The pointer on the RAM 51c in which T _n is stored is incremented to indicate the TOK information T ₁ . Further, as shown in step S21, the controller 51 also increments the pointer on the ROM 51b, which is a database, to instruct the index information of the file F ₁ shown in FIG. 2, for example. Here, the controller 51 performs step S2.
As shown in 2, the pointer for counting each data of the TOK information T ₁ on the RAM 51b is set to 1. This is to compare each piece of data of the TOC information T ₁ with each piece of data of the index information.
Then, as shown in step S23, the TOC information T ₁
It is determined whether or not the first data of the above and the first data of the index information of the file F ₁ match. here,
If it is determined that the first data do not match, the EOF of the index information in the ROM 51b in step S24.
The index information is continuously incremented as shown in step S25 until is detected. When the EOF is detected, the process proceeds to step S29, the pointer of the ROM 51b is incremented, and the index information of the next file F ₂ is designated. If it is determined in step S23 that the first data match each other, the flow advances to step S26 to increment the pointer of the TOC information T ₁ on the RAM 51c, and the flow advances to step S27 to read the ROM5.
The pointer of the file F ₁ on 1b is incremented. Next, as shown in step S28, the RAM 51c
It is determined whether or not EOF is detected by the TOC information T ₁ therein. The determination in step S23 is repeated until it is determined in step S28 that EOF is detected.
The detection of EOF in step S28 means that T
This is a case where index information matching the OC information T ₁ is found on the ROM 51b which is a database.

Then, as shown in FIG. 8, the controller 51 proceeds to step S5, rearranges the recorded content information corresponding to the index information found in the ROM 51b, and then displays it on the display unit 60.

This step S5 can also be divided as shown in FIG. That is, the controller 51, as shown in step S30, stores the file F ₁ in the ROM 51b.
Move the pointer to the recorded content information of. And step S
Until the EOF of the file F ₁ in the ROM 51b is detected in 31, the recording content information of the file F ₁ is transferred to the graphic controller 54 while incrementing the pointer on the ROM 51b as in step S35 as shown in step S33. When it is determined that EOF is detected in step S31, R is set as shown in step S32.
Since the recorded content information of the file F ₁ of the OM 51b is displayed on the display unit 60 via the graphic controller 54, the search processing of the recorded content information of the next disc is started. This search processing of the recorded content information is performed until the EOD is detected on the RAM 51c, as shown in step S34. That is, the processing from step S21 of FIG. 10 is repeated until the EOD is detected, and the recording content information for all the optical discs D ₁ , D ₂ , D ₃ ... D _n is displayed on the display unit 60. . In addition, the display of this recorded content information,
As shown in FIG. 12, the disk storage position number and TOC
It is performed after rearranged on the RAM 51c together with the information.

Next, in the controller 51, as in step S6 shown in FIG. 8, the recording content information of the optical disk to be reproduced is selected from the display unit 60 by the selection operation commander 61. Then, the controller 51 proceeds to step S7.
As shown in, the storage position number of the optical disc corresponding to the recording content information selected by the selection operation commander 61 is output to the selection reproducing device 30.

Finally, in the selective reproducing apparatus 30, the optical disc desired by the user is reproduced as shown in step S8.

As described above, in the disc changer player system of the second embodiment, the TOC information of the optical disc previously stored in the disc storing portion of the selective reproducing device is transferred to the RAM, and the TOC information and the above-mentioned database are stored. By comparing with index information for media identification,
The recorded content information of a plurality of optical disks can be easily displayed on the display unit. Then, by selecting the recorded content information on the display unit, the target optical disk can be selected and reproduced, and the reproducing operation becomes easy.

In this disc changer player system, the optical disc with the program attribute information can be handled as described above. The operation of the disc changer player system in this case will be described below with reference to the flowchart of FIG. Here, the difference between this flowchart and that of FIG. 8 is that step S43 is inserted between step S42 corresponding to step S3 and step S45 corresponding to step S4, and that step S43 is YES. When the process of step S44 following the determination result is completed, the process proceeds after step S46 corresponding to step S5.

That is, when the controller 51 determines in step S43 that the TOC information receiving SW 57 has been pressed, it outputs the TOC information transmission request to the selective reproducing device 30 as in step S44. Next, all the optical discs D ₁ , D ₂ , D stored in the disc storage unit 31 are
₃ ... Store the TOC information of D _{n in} the RAM 51c.

Next, it is determined in step S43 whether or not the program attribute information is recorded in the TOC information. Here, if the program attribute information is recorded, the process proceeds to step S44, the program attribute information is rearranged in the RAM 51c, and then displayed on the display unit 60.

On the other hand, if the program attribute information is not recorded, the RAM 5 is loaded as shown in step S45.
The index information corresponding to the TOC information stored in 1c is stored in the ROM.
Search on 51b. Then, the controller 51 proceeds to step S46, rearranges the recorded content information corresponding to the index information found in the ROM 51b, and then displays it on the display unit 60.

Thereafter, in the controller 51, the selection operation commander 6 is displayed on the display unit 60 as in step S47.
In 1, the recorded content information of the optical disc to be reproduced is selected. Then, as shown in step S48, the controller 51 outputs the storage position number of the optical disc corresponding to the recording content information selected by the selection operation commander 61 to the selection reproducing device 30. Finally, in the selective reproduction device 30, as shown in step S49, the optical disc desired by the user is reproduced.

This is effective when the database becomes old and does not contain the recorded content information of the optical disc with the program attribute information newly purchased by the user.

The embodiment of the reproduction control apparatus and the reproduction system according to the present invention may be a disc changer player system 70 as shown in FIG. That is, a system in which the reproduction control device 72 is a personal computer 72a having a display 72b and the reproduction process of the selective reproduction device 71 is controlled by using an external database 73 connected via a net may be used.

As the peculiar identification information, for example, several hundreds of bits specific to the lead-in which becomes the head portion of the data in the program may be used.

Further, since the recorded content information is rearranged in the RAM, it is easy to change the name to a user's favorite name.

Further, as an optical disk as a recording medium, in addition to a compact disk, a video disk, a CD-
A medium such as a ROM can be handled as long as it has unique recognition information that is different for each disc.

[0082]

As described above, the medium information searching apparatus according to the present invention reads the unique identification information recorded in advance in the plurality of target recording media and records the information searching recording medium in accordance with the read unique identification information. The index information for medium identification is detected from the above, and the recorded content information corresponding to the detected index information for medium identification is searched, so that the recorded content information of a plurality of recording media can be easily searched.

The information search recording medium according to the present invention is a medium in which the recorded content information of a large number of recording media and the unique identification information recorded in advance in the large number of recording media are in a high-speed search form. Since the index information for identification is provided, the operation of the medium information search device is facilitated.

Further, the reproduction control apparatus according to the present invention reads the unique identification information recorded in advance on the plurality of target recording media, and records the information for retrieval according to the read unique identification information. A medium information search control unit that detects the medium identification index information from a medium and searches the recording content information corresponding to the detected medium identification index information, and the medium information search control unit that has searched Storage means for storing the record content information, display means for displaying the record content information stored by the storage means,
A selection operation means for performing a selection operation on the recording content information displayed on the display means, and the selective reproduction for reproducing the recording medium corresponding to the recording content information selected by the selection operation means. Since the reproduction control means for transmitting the command signal to the device is provided, the reproduction operation of the selective reproduction device is facilitated.

In order to solve the above-mentioned problems, the reproducing system according to the present invention uses the above-mentioned information retrieving recording medium and a selective reproducing apparatus that accommodates a plurality of recording media and selectively reproduces the information. And a reproduction control device for controlling a reproduction process of the selective reproduction device, wherein the selective reproduction device includes transmission means for transmitting the unique identification information read from each of the plurality of stored recording media. , The unique identification information recorded in advance on the plurality of recording media is read, the index information for identifying the medium is detected from the information search recording medium in accordance with the read unique identification information, and the detected information is detected. Medium information searching means for searching the recorded content information corresponding to the index information for identifying the medium, and a storage for storing the recorded content information searched by the medium information searching means A step, a display means for displaying the record content information stored in the storage means, a selection operation means for performing a selection operation on the record content information displayed on the display means, and a selection operation means for selecting the record content information. Further, since the reproduction control means for transmitting a command signal to the selective reproduction device so as to reproduce the recording medium corresponding to the recorded content information is provided, the reproduction operation of the selective reproduction device is facilitated.

[Brief description of drawings]

FIG. 1 is an embodiment (first embodiment) of a medium information search device according to the present invention.
FIG. 3 is a block diagram showing a schematic configuration of an optical disc information search device according to the embodiment of FIG.

FIG. 2 is a schematic diagram of each file of a database used by the optical disc information search device.

FIG. 3 is a schematic diagram illustrating the content of each file.

FIG. 4 is a schematic diagram showing another specific example of a database used by the optical disc information search device.

FIG. 5 is a block diagram showing a detailed configuration of a unique identification information reading unit inside the optical disc information search device.

FIG. 6 is a schematic diagram showing TOC information stored in a RAM in a search controller used in the optical disc information search device.

FIG. 7 is a block diagram showing a schematic configuration of a disc changer player system which is an embodiment (second embodiment) of a reproduction control device and a reproduction system according to the present invention.

FIG. 8 is a flowchart for explaining the operation of the disc changer player system.

9 is a flow chart for explaining step S3 in the flow chart of FIG. 8 in detail.

10 is a flow chart for explaining step S4 in the flow chart of FIG. 8 in detail.

11 is a flowchart for explaining in detail step S5 in the flowchart of FIG.

FIG. 12 is a schematic diagram showing a rearrangement state of recorded content information on a RAM in a reproduction control device of the disc changer player system.

FIG. 13 is a flowchart for explaining an operation when the optical disc with program attribute information is handled in the disc changer player system.

FIG. 14 is a block diagram showing a schematic configuration of another embodiment of the reproduction control device and the reproduction system according to the present invention.

[Explanation of symbols]

 10 Optical Disc Information Retrieval Device 11 Disc Storage Unit 12 Unique Identification Information Reading Unit 13 Search Controller 14 Database 15 RAM 16 CPU 17 Display Controller 18 Display Unit 19 Key Input Unit

Claims (9)

[Claims] 1. An information search recording medium provided with recorded content information of a large number of recording media and index information for medium identification based on unique identification information recorded in advance on the large number of recording media. A medium information retrieval device for retrieving recorded content information of a plurality of target recording media, wherein each of the unique identification information previously recorded in the plurality of target recording media is read and the read unique information is read. The recording medium further comprises control means for detecting the medium identifying index information from the information retrieving recording medium in accordance with the identification information and retrieving the recorded content information corresponding to the detected medium identifying index information. A medium information search device characterized by the above. 2. The information search recording medium is provided with index information for medium identification in a high-speed search form, each of which is unique identification information recorded in advance on the plurality of recording media. Item 1. The medium information retrieval device according to item 1. 3. The medium information search device according to claim 1, wherein the information search recording medium is provided inside. 4. The medium information search device according to claim 1, wherein the information search recording medium is provided outside. 5. A recording medium for information retrieval used when retrieving recorded content information of a plurality of target recording media, wherein the recorded content information of a large number of recording media and pre-recorded on the large number of recording media. A recording medium for information retrieval, characterized in that each unique identification information provided includes index information for medium identification in a high-speed retrieval form. 6. The table information of each of the plurality of recording media is recorded in advance as the unique identification information,
6. The information retrieving recording medium according to claim 5, wherein the table of contents information is in a high speed retrieval form and is used as index information for identifying the medium. 7. The information retrieving recording medium according to claim 5, wherein the plurality of recording media and the plurality of target recording media are optical disc recording media. 8. An information retrieval system comprising recorded content information of a large number of recording media and index information for medium identification, which is preliminarily recorded in the large number of recording media and in which each unique identification information is in a high-speed retrieval form. A reproduction control device for controlling a reproduction process of a selective reproduction device for accommodating a plurality of recording media and selectively reproducing the recording media, each of which is recorded in advance on the plurality of target recording media. The unique identification information is read, index information for medium identification is detected from the information search recording medium in accordance with the read unique identification information, and the recorded content corresponding to the detected index information for medium identification. Display medium information retrieval control means for retrieving information, storage means for storing the recording content information retrieved by the medium information retrieval control means, and the recording content information stored by the storage means Display means, selection operation means for performing a selection operation on the recording content information displayed on the display means, and reproducing the recording medium corresponding to the recording content information selected by the selection operating means. And a reproduction control means for transmitting a command signal to the selective reproduction device. 9. A selective reproduction device for accommodating a plurality of recording media and selectively reproducing, recorded content information of a large number of recording media, and unique identification information recorded in advance in the large number of recording media. A playback system comprising a playback control device for controlling playback processing of the selective playback device using an information search recording medium provided with index information for medium identification in a high-speed search mode, wherein the selective playback device Is provided with transmitting means for transmitting the respective unique identification information read out from the plurality of stored recording media, and the reproduction control device reads the respective unique identification information transmitted from the transmitting means. The index information for medium identification is detected from the recording medium for information retrieval according to the identification information, and the recorded content information corresponding to the detected index information for medium identification is recorded. The medium information search control means for searching, the storage means for storing the recording content information searched by the medium information search control means, the display means for displaying the recording content information stored by the storage means, and the display means. A selection operation means for performing a selection operation on the displayed recording content information, and a selection reproducing device for reproducing the recording medium corresponding to the recording content information selected by the selection operating means. A reproduction system comprising a reproduction control means for transmitting a command signal.