JPH06187642A - Optical reading/recording medium and its reproducer - Google Patents

Abstract

PURPOSE:To provide a general-purpose and reproducible CD-ROM recording form and a reproducer by recording at least the acoustic signal and the information used for retrieval of the acoustic signal in a user field in a hierarchical structure. CONSTITUTION:A CD-ROM-XA format is recorded on a TOC secured at the innermost circumference of a CD-ROM. A mode 2 handles chiefly the data other than those on the images and the characters and is mainly used for a multimedia. Basing on this standard, the reproducing acoustic signals, etc., are recorded on the CD-ROM. Then, a chapter table, a track table and an index table which are hierarchized from a lower order toward a higher order are successively recorded as the retrieval information on those acoustic signals, etc. Then, the hierarchized information on a CD-ROM player are retrieved in a tree shape and the address of the reproducing acoustic signal is decided. A flag showing the specific reproduction processing is recorded on the index table and the player performs the reproduction processing by making reference to the flag.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a CD-ROM (Compact
The present invention relates to an optical read recording medium such as a Disc-Read Only Memory) and its reproducing device.

[0002]

2. Description of the Related Art As an optical read recording medium, a CD-RO is used.
M is said to be the most powerful recording medium in terms of large capacity, low price, and small size. The CD-ROM is particularly indispensable as a package of multimedia software. Various classifications and models have been proposed for the CD-ROM, and various standards have been proposed (for example, “Multimedia / Keyword Explanation”, edited by Nikkei BP Book Division,
reference). CD media such as CD-DA (Compact Disc Digital Audio) include CD-RO
M, CD-I, CD-ROM XA, CD-BGM and the like. The CD-ROM format is a format for a CD in which not only character information but also voice information and image information are recorded. The CD-I format is a format for a multimedia CD that is played back by a dedicated player, and is intended to improve the processing ability of multi-data and to pursue the convenience of operation. The CD-ROM XA format is a format for a CD that records multimedia information including images (digital data) and sound. CD
-BGM is used for the purpose of playing music for a long time such as cable broadcasting. Also, a CD-MO that can write data
(Magnetic Optical: Rewritable CD), CD-WO
(Write Once: write-once CD) is known. In addition, MIDI is added to the subcode area in the CD format.
CDs that record data CD-MIDI, CD-G
Standards such as (graphics) are known. MIDI
Is a standard for controlling electronic musical instruments such as synthesizers,
It is used for automatic performance. These standards are commonly known as
It is regulated by books called Red Book, Yellow Book, Green Book, Orange Book, etc. Among these various CD standards, the present invention particularly uses the C-CD-ROM XA format defined as a CD standard used as a multimedia for recording digital data such as time information and voice data.
D and its reproducing device.

The CD-ROM XA format is defined as a physical format and is described as a logical format according to ISO-9660, as described in "Explanation of multimedia keywords", edited by Nikkei BP Book Division.
It has a logical file structure. The CD-ROM format specified by Yellow Book is mode 0, mode 1,
There is mode 2. Mode 0 is a format used for dummy. Mode 1 is a format mainly for character data handled by a computer. Mode 2 is a format for mainly handling data other than images and characters,
Mainly used in multimedia. Mode 2 is 12
It consists of a byte sync signal, a 4-byte header, and a 2336-byte user field. In the CD-ROM XA format, this mode 2 is used as two forms 1 and 2 depending on the purpose. Form 1
Is mainly used for recording data, and stores a sync signal, header, user field, EDC, ECC. Form 2 is mainly used for recording audio signals,
It consists of a sync signal, a header, a user field, and an ECC.

As one application example of the CD-ROM XA format, a case where the CD-ROM is used as a learning material for learners, for example, for junior high school students and high school students, will be exemplified. A CD-ROM that allows learning selectively, such as a CD-ROM recording the content of language learning such as English, or a CD-ROM recording the content of learning of mathematical learning, in a self-taught manner by an interactive method. Take a ROM player as an example. The learner uses a CD-ROM that records the contents of learning that he / she wants to learn.
-Loading in a ROM player to allow learning to proceed in an interactive manner while playing back the contents recorded on the CD-ROM on the CD-ROM player. As such a learning method, for example, if English learning is taken as an example, (1) first, the English conversation content of a section is reproduced as a sound (speech), and (2) since the listening is tested, the problem is a sound. (3) The learner answers from the numeric keypad etc. provided in the CD-ROM player, (4) If the answer is correct, go to the next task, and (5) If the answer is incorrect, the task will be resumed. It is output as a sound, and (6) when incorrect answers are repeated several times, the original English conversation content is played back again at a reduced speed to make the listening practice again. On the other hand, when a learner loads a CD-ROM player with a CD-ROM for learning mathematics, the following process is performed. The learner refers to a textbook in which mathematical expressions and their explanations are described in a book, or refers to those displayed as these images, and acts as a teacher.
While listening to the reproduced sound in the ROM, learn, solve the problems posted in the textbook, and answer with the numeric keypad. If the answer is correct, proceed to the next task. If the answer is incorrect, continue to solve the task. In case of incorrect answers, the explanation is on CD
-The reproduced sound of ROM is output.

As described above, the CD-RO for the purpose of learning
In the M player, the interactive method and the reproduction processing method of the recorded content of the CD-ROM differ depending on the learning content. If the program is installed in the CD-ROM player up to the interactive method, the versatility of the CD-ROM player is lost. In addition, the C
Assuming that the CD-ROM player is incorporated in a D-ROM player, the CD-ROM for learning when the CD-ROM player is sold.
Not only ROM but also CD-R for learning sold thereafter
In order to correspond to OM, depending on the dialogue method, CD-RO
It becomes necessary to change the program of the M player. Therefore, it is virtually impossible to incorporate such a program in the CD-ROM player.

It is possible to record the contents of a specific dialogue method on a learning CD-ROM, and the CD-ROM player may perform dialogue processing according to the recorded contents. However, if so, it is complicated and various dialogue methods must be standardized. And, standardization becomes very troublesome. Further, the CD-ROM player also needs to incorporate a general program corresponding to the interactive standard, which makes the configuration very complicated. Even if standardized, the usage pattern is likely to change in the future, and the standard is likely to change. As a result, the CD-ROM player has to be changed in accordance with the change in the standard.

[0007]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention For example, CD-BG
Since M (Back Ground Music) is used to play cable broadcast music for a long time, if the function other than music playback is to identify the CD-BGM and quickly start playing, etc. Well, the existing CD-ROM XA format standard is also sufficient. However, as one of the multimedia, when the conventional CD-ROM XA format is used to record the learning contents as the teaching material for the above learning, a dialogue process which does not exist in the CD-BGM is required, and the operability of the user is increased. Easy, and
It is difficult to construct the above-mentioned CD-ROM-dependent general-purpose CD-ROM player. For example, when learning using a language learning CD-ROM, when a correct answer is performed, a key operation for advancing to the next task is performed, and when an incorrect answer is given, a different key operation is performed to reissue the same task. I need. If the answer is incorrect multiple times, you will need to operate different keys to return to the previous lesson. The method of advancing such learning contents is determined according to the CD-ROM, and each time the learner performs key operation, the operation becomes complicated, and further various keys are required for the CD-ROM player. become. Also, providing such various keys in the CD-ROM player according to the contents of learning lacks versatility, and the low price of the CD-ROM player cannot be realized.

The above-mentioned problem is not limited to the learning CD-ROM player, and the same problem as described above is encountered in other multimedia. Further, a CD that can be used for the above-mentioned learning
It is not a good idea to specialize the ROM player as a learning CD-ROM player. Not only can the CD-ROM for learning that requires dialogue be played, but also the CD-BG
It is desirable that M and CD-I are also available.
That is, it is necessary to configure not only the learning CD-ROM player but also a general-purpose CD-ROM player.

Therefore, according to the present invention, even when the CD-ROM is used for multimedia, its CD-RO is used.
The CD-ROM player as a playback device for M can be configured universally, and the CD-R player can be used even when dialogue is required.
It is not necessary to provide various keys on the OM player, and an optical read recording medium such as a CD-ROM that does not complicate the user's key operation and a CD-ROM player that can easily and quickly reproduce the recording medium. An object is to provide a reproducing device.

[0010]

Because of the difficulty and limitations of standardizing all of the above, or the difficulty of predicting future changes in the standard, the CD-ROM XA format is rather a CD-ROM. Paying attention to the fact that there is a user field that can be used arbitrarily by the user who creates a CD-ROM player based on such a purpose, simple information indicating a dialogue method according to the contents of learning is provided. Use the one recorded on the CD-ROM,
The ROM player itself refers to the simple information indicating the interactive method recorded on the CD-ROM and stops installing a program for performing a simple and general-purpose process for realizing a desired interactive operation. It is desirable to have a universal configuration of the mold. In the present invention, first,
The user field is used to solve the above problem.
That is, in order to realize a reproducing device such as a CD-ROM player such as a disc recording medium dependent type such as a CD-ROM, the disc recording medium of the present invention is a conventional CD-ROM.
Of the XA format, a portion (user field) permitted to be used by the user who creates the CD-ROM is made usable according to the contents of the disc recording medium. Further, in the present invention, the search information recorded in the user field of the CD-ROM XA is hierarchized so that the desired search can be performed quickly and easily in order to efficiently perform reproduction from the disc recording medium. . Further, in the present invention, the layered information is provided with information (flag) for designating the reproducing method of the information recorded on the optical read recording medium, and the reproducing apparatus can reproduce the information by referring to the information. And However, the information processing shall be simple and can be processed as standard.

Therefore, according to a first aspect of the present invention, there is provided an optical read recording medium in which at least an acoustic signal and information used for searching for the acoustic signal are recorded in a hierarchical structure. Specifically, the hierarchical structure information is recorded in the user field of the optical read recording medium.

[0012] Preferably, the information used for searching the acoustic signal of the hierarchical structure is at least the highest chapter information, the track information located below the chapter information, and the index information located below the track information. The information having the hierarchical structure is combined from upper to lower in a sequentially related manner, and the information is sequentially combined to provide search information of a corresponding acoustic signal. The index information has at least one flag that defines a reproduction method of the audio signal. These flags have the following uses. (1) Specify other index information (2) Specify that the corresponding audio signal is repeatedly reproduced

More preferably, the information used for searching the acoustic signal of the hierarchical structure is the top chapter information,
In addition to the track information located below the chapter information and the index information located below the track information, sub-index information located below the index information is included, and information having a hierarchical structure of these is provided. The information is sequentially combined from the upper order to the lower order, and these pieces of information are sequentially combined to provide search information of a corresponding acoustic signal. The uses of the flag defining the reproduction method of the audio signal in the index information are listed below. (1) Indicates the presence of other sub-index information. (2) Specifies other index information. (3) Defines the reproduction method of the audio signal. The definition methods of this reproduction method are listed below. (B) Reproduce the corresponding audio signal repeatedly (b) Specify a specific audio signal specified in the sub-index information.

Further, time information is recorded on the optical read recording medium in addition to the acoustic signal. In addition, the acoustic signal includes acoustic learning content.

Specifically, the optical read recording medium is
CD-ROM CD-R recorded in XA format
OM. The designation of this CD-ROM XA format is recorded in the TOC. The chapter information, the track information, and the index information having the hierarchical structure are in the mode 2 of the CD-ROM XA format.
It is recorded according to. Alternatively, the chapter information having the hierarchical structure, the track information, the index information, and the sub-index information are CDs.
-It is recorded according to the mode 2 of the ROMXA format.

According to a second aspect of the present invention, there is provided an apparatus for reproducing the above-mentioned disc recording medium. That is, there is provided an optical read recording medium reproducing apparatus which performs a reproducing process based on the information recorded on the optical read recording medium in which the information specified up to the reproducing method described above is recorded.

Furthermore, in the optical read recording medium of the present invention, (1) a flag indicating the presence of another voice in the sub-index information, (2) the index information and the sub-index information should be followed. Information that specifies that an index and a sub-index are specified, (3) a flag that specifies that the stored contents are reproduced in random order from the next index in the index information,
(4) Any or all of the limited number of times of automatic repetition can be recorded in the sub-index information.

When the above-mentioned optical read recording medium is used, the optical read recording medium reproducing apparatus (1) reproduces the contents recorded on the optical read recording medium according to the input key. (2) It is possible to proceed to any one of the destinations to be advanced, (3) It is possible to proceed arbitrarily according to a designated order, (4) Automatic repeat processing in the sub-index information of the optical read recording medium. One of the
Or do everything.

[0019]

In the optical read-out recording medium, at least the acoustic signal and the information used for searching the acoustic signal have a hierarchical structure, preferably recorded in the user field. Therefore, the reproducing apparatus has the hierarchical structure. Sequentially into chapter information, track information located below the chapter information, and index information located below the track information,
By searching in a tree shape, the storage area of the corresponding acoustic signal can be found. Since the search information of the hierarchical structure is stored in the user field, there is no problem in the standard, and a general-purpose reproducing apparatus capable of processing reproduction of a plurality of other optical read / write media of the same standard can be realized.

Since the index information is provided with a flag that defines the reproduction method of the audio signal, the reproduction apparatus shifts to a specific reproduction process according to the content of the flag, for example, another index information process. The audio signal to be reproduced is repeatedly reproduced. More preferably, in addition to the highest chapter information, track information located below the chapter information, index information located below the track information, sub-index information located below the index information is provided. Since this sub-index information has a flag indicating a specific reproduction process, the reproduction device refers to these pieces of information even for a more complicated reproduction process and performs the reproduction process. However,
Its complexity is due to the combination of simple processes,
It does not lead to the complexity of the structure of the playback device itself. As the reproduction processing, (1) the processing shifts to the processing of other sub-index information, (2) the processing shifts to the processing defined by the other index information, (3) the sound signal is reproduced, for example, ( B) Reproduce the corresponding sound signal repeatedly,
(B) For example, a specific acoustic signal specified by the sub index information is reproduced.

[0021]

1 is a plan view of a learning CD-ROM player as an embodiment of a reproducing apparatus for an optical read recording medium according to the present invention. FIG. 2 shows the CD-ROM player 1 shown in FIG.
It is a figure which shows the internal structure of. CD-ROM player 1
Is a speaker 24, LED display panel section 35, power switch 51, push button switch section 41, operation switch group 42, repeat button 420, lid open button 5.
0, and a lid 28 accommodating the mechanical deck 15 therein is provided. The LED display panel section 35 is provided with a chapter display section 351, a step display section 352, and an answer display section 353. The push button switch section 41 includes a numeric keypad section 410 and a select button 41.
1, clear button 412, external voice recording button 413,
External audio playback button 414, GO (progress) button 415
Is provided. The operation switch group 42 includes a fast (or fast) forward button 422 and a fast (or fast) return button 42.
1, a play button 423, and a stop button 424 are provided. The reproduction button 423 is used to start reproduction of the learning CD-ROM 2, and the external voice reproduction button 414 is used to reproduce the acoustic signal recorded in the DRAM 33 from the microphone 34 via the IC recording unit 32. Press the lid open button 50 to open the lid 28 and CD-R for language learning
The OM 2 is loaded on the mechanical deck 15 in the CD-ROM player 1.

The internal structure of the CD-ROM player 1 shown in FIG. 2 includes a driver 14 for driving a mechanical deck 15 for driving the loaded learning CD-ROM 2, and a servo signal processing section 13 for servo-controlling the driver 14. From the RF amplifier 11 that amplifies the RF signal read from the learning CD-ROM 2 via the mechanical deck 15, the digital signal processing unit 12 that digitally processes the read signal from the RF amplifier 11, and the digital signal processing unit 12 Signal is digitally filtered for ADPCM, and SR
A decoding circuit 20 for decoding using the data recorded in the AM 21, D / A converters 22 and D for converting the signal decoded by the decoding circuit 20 into an analog signal
The output signal of the A / A converter 22 is amplified and the speaker 24 is amplified.
There is an amplifier 23 for applying to. The learning content recorded in the learning CD-ROM 2 is output as sound from the amplifier 23. The microcomputer 30 controls the entire operation described above. SRAM for the microcomputer 30
31 is connected. Amplifier 2 in parallel with speaker 24
A stereo mini-jack 25 is connected to 3. When the external voice recording button 413 is pressed, the microphone 34, which detects the voice uttered by the learner, is controlled via the IC recording unit 32 under the control of the microcomputer 30.
It is stored in AM33. The learner's voice stored in the DRAM 33 is also stored in the microcomputer 30, the decoding circuit 20, when the external voice reproduction button 414 is pressed.
The speaker 2 via the D / A converter 22 and the amplifier 23
It is output from 4. The microcomputer 30 is LE
The D display unit 35 and the numeric keypad unit 40 are controlled.

CD-ROM 2 for learning from the speaker 24
The sound recorded in or the sound recorded by the learner is output. Chapter display section 3 of LED display panel section 35
The current chapter number of the learning CD-ROM 2 is displayed on 51, and the learning CD-RO is displayed on the step display section 352.
The M2 track number and minute are displayed, and the answer display section 353 is displayed.
The answer sector is displayed in. Power switch 51 is CD
-Pressed by a learner (user) when turning on the power of the ROM player 1. The ten-key unit 410 is used by the learner to specify the chapter number of the learning content recorded in the learning CD-ROM 2 and when the learner answers the questions recorded in the learning CD-ROM 2. The select button 411 is operated prior to the operation of the ten-key unit 410 when the learner specifies the chapter number using the ten-key unit 410. The clear button 412 is used when the learner cancels the chapter number designated by the ten-key portion 410. The external voice recording button 413 is used by the learner to record and record from the microphone 34 to the DRAM 33 via the IC recording unit 32. External voice playback button 414
Is used when the learner reproduces the learner's sound recorded in the DRAM 33. The GO (progress) button 415
Press when the learner proceeds to the next learning. Fast forward button 42
2 is used by the learner when the contents of the learning CD-ROM 2 are rapidly advanced. The fast return button 421 is used by the learner to quickly retract the contents of the learning CD-ROM 2. The play button 423 is used by the learner for learning the CD-RO.
It is used when reproducing the contents of the learning CD-ROM 2 to start the learning of M2. The stop button 424 is used by the learner to stop the reproduction of the learning CD-ROM 2. The repeat button 420 is used when the learner repeats the contents of the currently reproduced learning CD-ROM 2.

The recorded contents of the learning CD-ROM 2 will be described. The TOC on the innermost side of the CD-ROM 2 has a CD
-ROM XA format is recorded. FIG. 3 shows the CD-ROM XA format of the CD-ROM 2. Mode 2 is a format for mainly handling data other than images and characters, and is mainly used in multimedia. Mode 2 includes a 12-byte sync signal, a 4-byte header, and a 2336-byte user field. In the CD-ROM XA format, this mode 2 is used as two forms 1 and 2 depending on the purpose. Form 1 is mainly used for recording data, and is composed of a 12-byte sync signal, a 4-byte header, an 8-byte subheader, a 2048-byte user field, a 4-byte EDC, and a 276-byte ECC. In this embodiment, time information is recorded in this user field. Form 2 is mainly used for recording audio signals, and is composed of 2352 bytes in total, and is composed of a 12-byte sync signal, 4-byte header, 8-byte subheader, 2324-byte user field, and 4-byte ECC. In this embodiment, ADPCM system language learning voice (acoustic) data is recorded in this user field. The reason why the user field of form 2 can be secured larger than the user field of form 1 will be described. Since digital data such as time information recorded in the user field of form 1 needs to be highly reliable, many bits (EDC, ECC) are used for error correction, while form 2 is used.
Since the reliability of the audio data recorded in the user field does not need to be as high as the reliability of the data such as time information, many bits need not be used for error correction. Therefore, the user field of the form 2 can be made large by not using many bits for error correction.

FIG. 4 is a diagram illustrating the recording format of the learning CD-ROM 2. VD is Volume Sc
river, PT for Path Table, RD for Ro
Indicates ot Directory. DS (Digital
1 Silence), 2 seconds of digital silence is recorded according to Mode 2, Form 2. A chapter table, a track table, an index table, and a sub index table, which will be described later with reference to FIG. 5, are stored in the table storage area. After the table storage area, ADPCM audio digital is recorded.

FIG. 5 is a block diagram of the table storage area shown in FIG. A table in which chapter information is recorded (hereinafter referred to as a chapter table) and a table in which track information is recorded (hereinafter referred to as a chapter table) after an empty sector.
A track table), a table in which index information is recorded (hereinafter referred to as an index table),
A table in which sub-index information is recorded as an option (hereinafter referred to as a sub-index table) is provided, and the audio data recorded in a desired user field is searched and reproduced by the data recorded in these tables.

FIG. 6 is a graph illustrating the reference (search) of the chapter table, track table, index table, and sub index table. These tables have a hierarchical structure (or tree structure). A chapter table is located at the top of this hierarchical structure, a track table is located at the next layer, and an index table is located at the layer below it. . The sub index table may not exist, but when the sub index table exists, it is located in a layer below the index table. The table information is added to the ID-FIELD and data area of the table file. In the example of the learning CD-ROM 2, the chapter table, the track table, and the index table are used in the normal mode. In the sub-request mode in which the selection problem occurs, a sub-index table is used in addition to the chapter table, track table, and index table.

The chapter table starts at an absolute time of 00 minutes, 33 seconds, and 00 sectors, for example. In the normal mode, when reproducing audio information from a predetermined address, the chapter table is referred to, the track table address of chapter = 4 is extracted, and then the track = 2.
Of the index table, and further the data address of index = 5. As described above, the chapter table, the track table, and the index table are hierarchized, and a tree-like search is performed, whereby the processing can be performed uniformly and accurately, and the search time can be shortened. In the sub-request mode, in addition to the search in the normal mode, the sub-index 1 is further searched from index = 5.

FIG. 7 is a diagram showing the detailed structure of the chapter table. The chapter table is the data that is read after the TOC information, and the 4-byte A in the ID-FIELD.
It is recorded as "CHAT" in the SCII code.
Addresses of all track tables corresponding to chapter numbers are recorded in this chapter table, and are used when reading the track table by the specified chapter number. The ID-FIELD is an area for storing CHAT identification data and nesting data (table content display data). The total chapter number data area stores all the chapter numbers included in the learning CD-ROM 2. The chapter mode data area is not used in this example. Each track table to be searched is stored in the track table address area in 3 bytes of minutes: seconds: sectors.

FIG. 8 is a diagram illustrating details of the track table. The track table is located below the chapter table, and is recorded in the ID-FIELD as a 4-byte ASCII code as "TRCK". This track table corresponds to the key input of the track number, reads the address of the track number to be searched, and according to the address data (offset) and chapter designation data,
Used to read the index table. Each table in this track table has a variable length and is designated as an offset. ID-FIELD is an area for storing TRCK identification data and nesting data. The module size area stores the total number of bytes of the table data included in the hierarchy below this. The total number of tracks area stores the number of all tracks included in one chapter. The chapter number area is used to specify in which chapter the index data (voice data) to be searched is located. In the case of monaural sound (level B), the number is 0 to 7 chapters. The index number area stores all the index numbers existing in one track. Offset data of the index table to be searched is stored in the offset table area. By this designation, the sizes of the track table 1 to the track table N can be made variable.

FIG. 9 is a diagram illustrating details of the index table. The index table is located below the track table, and the ID-FIELD has a 4-byte AS.
It is recorded as "INDX" in the CII code. This index table is used as a table for reading out the address according to the index number to be searched and accessing the actual voice data. In addition, this index table determines whether the mode is the normal mode (voice data table) or the sub-request mode (mode such as choice answer questions) according to the mode data information, and if the mode is the normal mode, the data is stored. Although it is read as an address, it is used to read the sub index table as a sub index table address in the sub request mode. Therefore, the upper 1 byte of the mode data area is used as a flag. Details of this flag will be described later with reference to FIG. ID-FIEL
D is an area for storing INDX identification data and nesting data. The layer below this layer, that is, the total number of bytes of the sub index table is stored in the module size area. In the total index number area, all index numbers included in one track are stored.
The start address of the index is stored in the start address area, and when it is a sub index, it is used as an offset table. In the end address area, ((E
The address of (OR + 1) is stored. If there is a sub index, 0 is stored. Information A and B are stored in the information storage area.
Both store 0.

FIG. 10 is a diagram illustrating details of the flags shown in FIG. Although this flag has 1 byte (8 bits), bit 0, bit 4, and bit 7 are used in this embodiment. Bit 0 is a bit indicating that a voice (acoustic) signal is repeatedly reproduced. Bit 4 is a bit indicating to automatically proceed to the next index. Bit 7 is a bit indicating that there is a sub index. By recording such a flag in the learning CD-ROM 2, when the (1) bit 0 is set, the CD-ROM player 1 sets the learning content without the learner's key operation. Depending on the repeat playback, it automatically advances to the learning content specified in the next index,
(2) CD-RO when bit 4 is set
The M player 1 automatically advances to the next learning recorded in the learning CD-ROM 2, (3) When learning in the sub-request mode such as further question assignment, it is possible to advance to the sub-index. Become. The CD-ROM player 1 does not need to incorporate a complicated program for performing a specific reproduction process for each specific learning CD-ROM according to the above-described content, and the CD-ROM player 1 is relatively simple as described above. It suffices that it be configured to perform various types of processing.
That is, the CD-ROM player 1 uses the learning CD-RO.
It suffices that each of the above-mentioned contents recorded in the M2 is simple and capable of performing a process of a specific combination of reproduction methods. As a whole, desired complicated reproduction processing can be realized. In other words, it is only necessary to process the database recorded on the learning CD-ROM 2. As described above, the processing in the CD-ROM player 1 is simple, and can be applied to various learning simply by changing the learning CD-ROM. That is, the CD-ROM player 1 can be made into a general-purpose configuration for processing various learning CD-ROMs.

FIG. 11 is a diagram illustrating details of the sub-index table. The sub index is used when it is specified that the sub index exists in the index table. The sub-index table is hierarchically located below the index table and has an ID
-"SUB" with 4 byte ASCII code in FIELD
It is recorded as "0". In this embodiment, the sub-index table is mainly used for answering a selection-type question, but since it may be used for other purposes, the content definition is also made in the sub-index data mode. In addition, since the hierarchy may be further lowered, the sub-sub request mode is also assumed. ID-F
IELD is an area for storing identification data of SUB0 and nesting data. In the module size area, the total number of bytes of the layers below this layer, that is, the future sub / sub index table is stored. In the total number of sub-indexes area, the number of all sub-indexes included in one index is stored. The start address of the index is stored in the start address area, and when it is a sub index, it is used as an offset table.
The address of (EOR + 1) is stored in the end address area. If there is a sub index, 0 is stored. In the information storage area, 0 is stored for both information A and B.

A flag area is also provided in the mode data area of the sub index table. FIG. 12 illustrates the details of this flag. Note that, hereinafter, the flag in the index table illustrated in FIG. 10 is referred to as an index flag, and the flag in the sub index table illustrated in FIG. 12 is referred to as a sub index flag.
The sub index flag also has 1 byte (8 bits), but in this embodiment, bit 6 other than bit 0
~ 5, bit 7 is used. Bit 0 is a bit indicating that a voice (acoustic) signal is repeatedly reproduced. Bit 1 is a bit indicating an incorrect voice. Bit 2 is a bit indicating a correct voice. Bit 3 is a bit indicating the voice of the question. Bit 4 is a bit indicating to automatically proceed to the next index. Bit 5 is a bit indicating to automatically proceed to the next sub-index. Bit 7 is a bit indicating that a sub index is further present.

By recording such a flag in the learning CD-ROM 2, when (1) bit 0 is set, the CD-ROM player 1 does not require the learner to operate the key, Depending on the content of learning, repeat playback,
When the learner's answer is incorrect, the CD-ROM player 1 automatically outputs the incorrect answer voice when the learner's answer is incorrect. Automatically output, and if (3) bit 2 is set and the learner's answer is correct, CD-
The ROM player 1 automatically outputs the correct voice,
(4) When bit 3 is set, the voice of the question for the learner is output from the CD-ROM player 1,
(5) Bit 4 is set When bit 4 is set, the CD-ROM player 1 automatically sets the learning CD-
Proceed to the next learning recorded in ROM2. When (6) bit 5 is set, the process automatically proceeds to the process defined by the next sub index, and (7) bit 7
Is set, it indicates that there is another sub-index, and the process moves to the next sub-index. That is, also in this case, it is not necessary to incorporate a complicated program for the specific reproduction processing of the learning CD-ROM 2 into the CD-ROM player 1 in accordance with the above-mentioned contents.

The index flag shown in FIG. 10 and FIG.
If the sub index flag shown in FIG.
-The ROM player 1 only has a program that performs the basic processing for the index flag and the sub-index flag described above, and as the learning CD-ROM 2, not only the language learning CD-ROM but also other learning programs such as mathematics learning It is also possible to process a CD-ROM for use.
Further, the CD-ROM player 1 is not limited to the learning CD-ROM 2 for which dialogue is required, but in the case of a CD-ROM only for reproduction such as CD-BGM, reproduction is performed without using the above index flag and sub index flag. CD-R that can be processed and is specified not only for learning CD-ROM 2 but also for normal CD-ROM XA format.
The OM can be processed.

The CD-ROM player 1 is the above-mentioned CD-ROM.
Based on the mode 2 of the ROM XA format, the learning CD-ROM 2 in which the time information is recorded in the form 1 and the acoustic signal regarding the learning content is recorded in the form 2 is reproduced. Figure 1
3 is a flow chart showing the operation of the CD-ROM player 1 focusing on the processing of the microcomputer 30 in the CD-ROM player 1. Step S01: The preparation operation learner presses the power switch 51 to turn on the power of the CD-ROM player 1. Next, the learner presses the lid open button 50 to open the lid 28, and the learning CD-ROM 2
Is loaded on the mechanical deck 15. Step S02: Confirm the CD-ROM XA format.
Confirmation Operation Microcomputer 30 in CD-ROM player 1
Reads the TOC of the loaded learning CD-ROM 2 and inspects whether the CD-ROM XA format is recorded. If the CD-ROM XA format is recorded in the TOC, it is the correct learning CD-ROM 2, and the following operation is continued. In addition, CD-RO for learning
In the case of a CD-ROM other than M2, for example, a CD-BGM, the CD-ROMXA format is recorded in the TOC.
Even if it is loaded into the However, when the CD-ROM XA format is not recorded in the TOC, the CD-ROM player 1 stops.

Step S03: Reproduction start operation The learner operates the clear button 412 and then operates the ten-key portion 410 to set a desired learning chapter (chapter) number. After that, the learner operates the play button 423 to start learning the desired chapter from the learning CD-ROM 2. It should be noted that the learner operates the fast-forward button 421 or the fast-return button 422 as necessary to perform a head-finding operation of the portion to be learned by himself, and then the play button 42.
You may press 3. The microcomputer 30 searches the learning CD-ROM 2 for the specified chapter number, sequentially searches the track table recorded in the chapter table and the index table recorded in the track table, and responds. The reproduction of the audio information recorded in the learning CD-ROM 2 is started from the area where the acoustic signal is recorded. As a result, the speaker 24 outputs the first contents of the chapter. Step S04: Learning For example, when the reproduced sound is the conversation content of a chapter in English, the conversation content is output from the speaker 24. For example, when an acoustic signal for each sentence is designated in the index table, bit 1 of the index table is set to "1" indicating that the index table automatically advances to the next index table (Fig. 10). When bit 4 of the continuous index table indicating the learning content of the chapter is set to "1", the conversation content of one chapter is continuously output as sound from the speaker 24. The learner hears the conversation content output from the speaker 24. When bit 0 of the index table is set, the microcomputer 30 repeatedly outputs the conversation contents from the speaker 24.

Step S05: When bit 7 of the last index table is set (FIG. 10) and bit 3 of the lower sub-index table is set (FIG. 12), CD-RO
The M player 1 outputs a sound meaning a question from the speaker 24. The sub-index table meaning a question further specifies a sub-index table, and in the sub-index table, bit 2 indicating that a correct answer sound is output and bit 1 indicating that an incorrect answer sound is output are provided. It is set. Steps S06 to S09: Answer / Response The learner operates the ten-key unit 410 to input any one of 1 to 5 into the CD-ROM player 1 to answer (step S06). The microcomputer 30 inputs the setting state of the ten-key unit 410 and determines whether it is a correct answer or an incorrect answer (step S07). When the answer is correct, the microcomputer 30 outputs the correct sound from the speaker 24 (step S08), and when the answer is incorrect, the microcomputer 30 outputs the incorrect sound from the speaker 24 (step S09). If the answer is incorrect, the process returns to step S06, and the learner repeats the answer by the ten-key unit 410. Step S10: End of Learning When the learner finishes learning, the stop button 424 is pressed. As a result, the microcomputer 30 recognizes that the learning is finished and finishes the process. When the stop button 424 is not pressed, the process of the CD-ROM player 1 returns to the process of step S04 and continues to the next learning. At this time, the GO button 415 is pressed to proceed to the next chapter.

As described above, the CD-ROM player 1 is recorded in the learning CD-ROM 2 according to the index flag of the index table recorded in the learning CD-ROM 2 or the sub index flag of the sub index table. Process learning contents and questions. Such processing is performed for learning CD-RO.
Since it depends on the database recorded in M2, C
The processing program of the microcomputer 30 of the D-ROM player 1 is simple and standardized. Also, the CD-ROM XA for learning CD-ROM 2
In addition to the format specified by the format, the part that the user can freely use (user field in Fig. 3)
Since it uses, there is no problem in terms of standards.

In the learning described above, the speaker 2
When the learner repeats the conversation content output from No. 4, the repeat content is recorded in the DRAM 33, and further output from the speaker 24, the learner uses the external voice recording button 413.
Then, the voice is uttered toward the microphone 34, is temporarily recorded in the DRAM 33 via the IC recording unit 32, and the external voice reproduction button 414 is pressed to output the utterance of the user recorded in the DRAM 33 via the speaker 24. After that, when continuing the learning contents recorded in the learning CD-ROM 2,
Press GO button 415 to proceed to the next learning.

Although an example of reproducing a language learning CD-ROM as the learning CD-ROM 2 has been described above, in addition to this, for example, in the case of learning mathematics, a CD-ROM in which the contents of mathematical learning are recorded. CD-ROM player 1
Then, the same operation as described above is performed. Since the CD-ROM for the mathematical learning is also recorded in the CD-ROM XA format, the C-ROM is the same as the CD-ROM 2 for learning.
The D-ROM player 1 processes.

In the above-mentioned embodiment, the reproduction of the acoustic signal is exemplified, but the reproduction of the image signal or the like is also possible, and the combination of the image signal and the acoustic signal or the combination of the character information is also possible. Thereby, for example, it is possible to carry out learning while watching the image displayed on the TV monitor and listening to the above-mentioned sound, without making teaching materials special. In particular, when searching for such information, if the search information of the hierarchical structure described above is used, it is possible to quickly and accurately search for the corresponding information. Further, by using the index flag and the sub-index flag, it is possible to perform specific reproduction of the image information and the audio information without making the reproducing apparatus excessively complicated. If necessary, a sub-sub index table and a sub-sub index flag can be further provided at a lower position of the sub index table.

Further, the CD-ROM player 1 is replaced by a C
It can be used for reproduction of D-BGM and the like. CD-B
The GM is also recorded in the CD-ROM XA format. Therefore, the TOC is recorded as being in the CD-ROM XA format, and the CD-ROM player 1 reproduces the CD-BGM. Also in this case, the chapter table, the track table, and the index table have a hierarchical structure. However, in this example, it is not necessary to use the index flag shown in FIG. Also, there is no need to use a subindex table.

In the above-mentioned embodiments, the case where the CD-ROM conforming to the CCD-ROM XA format standard is used as the optical read recording medium is described, but the optical read recording medium of the present invention and the reproducing apparatus thereof. In carrying out the method, a CD-ROM is used as the optical read recording medium.
However, other various optical recording media can be applied. Further, the optical read recording medium of the present invention is a CD-R.
Not only when it is standardized by the OM XA format but also when it is standardized by various formats, as described above, the part corresponding to the user field is made to have the search information in a hierarchical structure, the index flag, and Alternatively, what corresponds to the sub index flag may be defined. As is apparent from the above-described embodiment, the reproducing apparatus for the optical read recording medium may be loaded with a program having standardized processing contents.

Another embodiment of the present invention will be described. The reproduction processing in the above-described embodiment is always 1 when proceeding to the next.
It can only play the audio information of the destination. Further, in the above-mentioned embodiment, even if the same learning CD-ROM 2 is reproduced, it can be reproduced only in the same order. Further, in the above-described embodiment, the repetitive reproduction processing by the repeat button 420 cannot proceed unless the learner releases it or presses another operation key. The present embodiment improves the above-described problems in order to further improve the utilization of the CD-ROM player 1, and provides an optical read recording medium and an optical read recording medium reproducing apparatus that enable the following processing. provide.

14 to 17 show index information and sub-index information as modified examples of FIGS. 9 to 12 which illustrate the index information and the sub-index information in the first embodiment. First Improvement As shown in FIG. 16, a flag B indicating that other audio information exists is added to the sub-index information of the learning CD-ROM 2 shown in FIG. This flag is referred to as flag A), and the additional flag has a meaning indicating "back voice" shown in bit 0 of flag B shown in FIG. Second improvement point As to the index information of the learning CD-ROM 2 shown in FIG. 9 and the sub-index information shown in FIG. 11, as shown in FIGS. A flag B designating an index and a sub index to be advanced to is added to the flag B, and bit 1 of the flag B shown in FIGS. 15 and 17 has a meaning indicating “destination (destination)”. Make it possible to proceed to the destination shown in B,
Enables playback at that destination. Third improvement point A flag is added to the index information to specify that the next index information is reproduced in no particular order.
Reproduction is possible in the same track of the ROM 2 in any order. Fourth improvement point In contrast to the sub index information shown in FIG. 11, FIG.
As shown in (4), it is possible to define the repeat limit number of times when the auto repeat is performed in the index information, and when the repeat button 420 is pressed, it is possible to perform the repetitive reproduction by the specified limit number of times.

The details of the above-mentioned improvements will be described below. 1st improvement function: Other audio in sub index information
When there is a flag indicating existence (FIG. 16, FIG. 17, flag
B, bit 0) FIG. 18 shows a text configuration example. As illustrated in FIG. 18, the text has a number assigned to the picture,
When the learner learns the names of those pictures in English, the learner first looks at those pictures and thinks of English names. If the idea is not correct, or if it is not known, the learner presses the number corresponding to the picture on the ten-key portion 410 of the CD-ROM player 1 shown in FIG. Then the CD
The corresponding sound is output from the ROM player 1 via the speaker 24, and the correct answer is known.

The operation of the CD-ROM player 1 in response to such an operation will be described. The CD-ROM player 1
Since the basic operations of the learner and the learner have already been described with reference to FIG. 13, the features characteristic of the present embodiment will be mainly described below. The microcomputer 30 in the CD-ROM player 1 shown in FIG.
The ROM 2 is searched and the flag B in the sub index information is read out and stored in the SRAM 31. The microcomputer 30 uses the bit 0 of the flag B shown in FIG.
When (FIG. 17) is set to “1”, the character “H” is displayed on the answer display unit 353 of the LED display panel unit 35 prior to the voice reproduction corresponding to the sub index. This character is displayed on the numeric keypad 4 of the corresponding number.
It means that pressing the key in 10 causes the corresponding voice to be played back. The learner presses any one of the keys 1 to 7 of the ten-key pad 410 while looking at the text shown in FIG. The microcomputer 30 outputs a voice corresponding to the pressed key through the speaker 24. If the learner presses a key with a number that does not exist in the text shown in FIG. 18, the microcomputer 30 outputs a warning sound from the speaker 24. In this way, the voice corresponding to the key number input by the learner is output from the speaker 24.

Second improvement function: index to be advanced
There are flags that specify the
At this time (FIG. 16, FIG. 17, flag B, bit 1), the microcomputer 30 reads the flag B of the sub index information (FIG. 16) in the learning CD-ROM 2, and bit 1 (destination) of the flag B is set. 16 while the microcomputer 30 is
The data recorded in the information A in the sub index is recorded in the SRAM 31 as the index number, and the data recorded in the information B is recorded in the SRAM 31 as the sub index number. When bit 1 of the flag B is set at the time when the audio reproduction is finished, the microcomputer 30
Accesses the previously stored destination address and reproduces voice.

FIG. 19 shows an example of the text of this embodiment. The content of the text starts from index 1 and sub index 0 (expressed as I0-S0, and so on), and finally reaches index 10 along the YES route shown by the solid line or the NO route shown by the broken line. In this example, subindex 1 indicates YES and subindex 2 indicates NO. The microcomputer 30
For each sub-index 0, the sentence (voice) of the question is reproduced and output from the speaker 24 so that the key “1” of the ten-key pad 410 is selected when YES and the key “2” is selected when NO is selected, "ANSWER" is lit on the character of the LED display panel section 35, and the character "A" is displayed on the answer display section 353 to prompt the learner to answer. The learner looks at the text shown in FIG.
Press the desired "1" or "2" key. If the learner presses the key "2" and indicates NO, the CD-
The microcomputer 30 in the ROM player 1 has N
The voice of "I0-S0" indicating the voice of O is reproduced, and it is confirmed from the sub index information that bit 1 of the flag B is set, and the information A and the information B in the sub index are referred to as the destination address. Then, it is recognized that the index and the sub-index to be advanced next are “I4-S0” as shown in FIG. In the same manner as described above, the microcomputer 30 uses the “I4-S
The voice of "0" is reproduced, characters are displayed, and the learner is prompted to answer. The learner now presses the key "1" to Y
When the intention of ES is indicated, the microcomputer 30
Goes to the process of "I5-S0" as shown in FIG. While the learner is interacting with the CD-ROM player 1,
The above operation is repeated. Finally, when the index 10 is reached, since the audio information of "silence" is recorded in the index 10, the CD-ROM player 1
When no voice is output from the body, the series of operations described above is ended. At this time, the learner can press the GO (progress) button 415 to proceed to the next learning. As described above, according to the text content, the learner can learn the text content along the route desired by the learner.

Third improvement function: Next in the index information
It is specified that playback is performed out of order from the index of
When lag exists (FIG. 14, flag A, FIG. 15, flag
Flag A, bit 6) The flag that defines reproduction in no particular order is defined as bit 6 in the flag A shown in FIG. In this case, FIG.
If N is the number of indexes defined by the total number of indexes in the index table shown in
To index (N-1) are reproduced in no particular order. When bit 6 of the flag A in FIG. 14 is set, the microcomputer 30 in the CD-ROM player 1 reproduces the voices indicated by the index 0 in the random order. That is, index 0
Indicates audio information indicating that reproduction is performed in any order.

FIG. 20 shows the text of this example. In this example, there are sentences from index 1 to index 5, and there are 120 combinations of all of these indexes. The learner can select any combination from the 120 combinations. The CD-ROM player 1 (microcomputer 30) reproduces in the order specified by the learner. This function is similar to the shuffle function in a general CD player.

Fourth improvement function: Within sub-index information
If the limit number of times when auto repeat is specified in
(FIG. 15) Repeat reproduction is defined in bit A and bit 0 shown in FIG. 17, and the limited number of times is specified within the range of 1 to 255 in the sub index of FIG. That is, learning C
When bit 0 of flag A in the sub-index of D-ROM2 is set and auto repeat is performed,
CD-ROM player 1 (microcomputer 30)
Limits the number of repeats. However, when the value of the limited number of times is 0, repeat is possible without limitation. CD
-The microcomputer 30 in the ROM player 1
When the sub index for which the above condition is satisfied is being reproduced, or when the reproduction process is completed, or when the learner presses the repeat button 420, the repeat operation is automatically performed according to the above condition. The microcomputer 30 counts the number of repeated reproductions,
Playback processing is automatically performed until the limit number of times specified in the sub index is reached, and when the limit number of times is reached, a pause operation is performed. In this way, up to the specified number of times,
You can automatically repeat the same learning content.

Although the four items (functions) have been described above, in carrying out the present invention, not only the above-mentioned items can be performed individually, but also learning can be performed by arbitrarily combining a plurality of items. For example, the second improvement function and the fourth improvement function may be combined to perform learning in which the learning is repeated for the designated repeat limit number of times, and then the learning proceeds to the designated index and sub-index. Furthermore, the second improvement function can be combined with the flag A and bit 5 (automatically advance to the next sub index) shown in FIG. 17, and this function allows the learner to operate the key. C for learning in any order without
It becomes possible to reproduce the D-ROM 2.

As described above, according to the second embodiment,
In the first embodiment, it becomes possible to proceed with learning, which could only proceed forward, in an arbitrary direction. Further, according to this embodiment, the learner can learn in any order.

The relationship between the address of the index table and the actual recording position of the audio data in the above-mentioned CD-ROM player 1 and learning CD-ROM 2 will be described in detail below. For the purpose of time management, the CD standard (Red Book) stipulates that time information indicating the position in the CD is recorded in the Q channel of the subcode channels. In general, a CD has spiral pit rows as shown in FIG.
As shown in (B), when the pit row is treated as one line, it is roughly divided into three. That is, from the inner circumference to the outer circumference, the lead-in area, program area, and
There is a lead-out area. The lead-in area is
This is an area for recording the TOC information of the CD, and the track number of the subcode channel Q is "00 (16
Displayed in decimal, the same shall apply hereinafter) ". In the lead-out area, actual voice information, character information, a disc or the like is recorded (hereinafter, voice data will be described as a representative). This area has track numbers "01" to "9".
It is identified by a BCD code of "9". In the subcode channel Q of the program area, time information is recorded in units of 1/75 seconds with the head of the program area called absolute time being 00:00:00.

At the actual recording position of the audio data in the index table, the absolute time is recorded in BCD code. For example, audio data of chapter 1, track 1 and index 3 (hereinafter referred to as C1-T1-I3) is recorded as shown in Table 1 below.

[0059]

[Table 1] Table 1 Start address 01:23:45 (BCD code) End address 02:05:63 (BCD code)

That is, when "C1-T1-I3" is designated, absolute time = 01 minutes 23 seconds 45 frames are accessed to start reproduction, and when reproduction is continued up to 02 minutes 05 seconds 63 frames, reproduction processing is ended. .

The table of the learning CD-ROM 2 is CD-
The procedure for storing the data in the SRAM 31 of the ROM player 1 main body will be described with reference to the flowchart of FIG. Steps 21 (S21) to 26 (S26) : The microcomputer 30 analyzes the TOC information in the lead-in area, and CD-ROM, CD-I or CD-ROM.
If it is judged as either XA, "00:33:00"
Read the data of the learning disc or CD
Discriminate between BGM and other discs. S25, S27 : If the microcomputer 30 analyzes the user field and determines that it is CD-BGM, C
Perform D-BGM processing. S26, S28, S29, S30 : The microcomputer 30 determines that the CD is other than the CD-BGM, and the CD-DA
If it is determined that the CD-DA processing is performed, otherwise, the reproduction operation is stopped, and thereafter, the processing is not performed until the CD is replaced.

S 24, S 31 : Microcomputer 3
When 0 is determined to be the learning disk, the read user field data is stored in the SRAM 31 as the chapter table data as it is. SRAM
31 has a memory capacity of 8K in this example. A RAM (not shown) inside the microcomputer 30 is provided with an area showing a current chapter and a current index, and "C1-T1-
“I0” is stored. The microcomputer 30 controls the mechanical deck 15 to stop the rotation of the disc,
Wait for learner's key input. S32 to S37 : When the learner presses the select button 411, the chapter, track and index can be directly specified. The learner presses the select button 411 and G
When the O (Progress) button 415 is pressed, the microcomputer 30 directly gives a number designated by the learner, for example, “C2
-T3-I0 "is set in the internal RAM and the data of the track table of chapter 2 is read. At this time, the microcomputer 30 can know the address data of the track table of the chapter 2 by referring to the chapter table acquired previously. In addition, select button 4
When only the GO (progress) button 415 is pressed without pressing 11, the learner indicates that the learner "C1-T"
It is determined that "1-I0" is designated, and the track table of chapter 1 is read. The track table and index table are continuously recorded on the CD. Therefore, when these data are expanded on the SRAM 31, it is necessary for the microcomputer 30 to perform an operation for simplifying the address operation for obtaining the target audio data recording address. In order to simplify this calculation, an address serving as a guide for address calculation on the SRAM 31 is stored in the internal RAM of the microcomputer 30 based on the current track and index. As a result, even if only the index number changes in the same track, the time required for the address calculation in the microcomputer 30 can be shortened. S38 : The microcomputer 30 SRA obtains the actual address on the CD from the internal RAM that stores the data indicating the current chapter, track and index.
It is detected from M31, and the address is accessed to perform the voice reproduction process.

The details of the process of reading the data of one sector in the above operation are shown in the flowchart of FIG.

In the user field of the CD-ROM, 2048 bytes are one unit, and when reading the chapter table, if the number of chapters is 509 or less,
If the number of valid data is less than 2048 bytes and the number of read data is fixed at 2048 bytes, SRA
The memory usage of M31 is wasted. Therefore, this CD-R
Paying attention to the point that the track table is always read after the chapter table in the OM player 1,
The address to be read in the SRAM 31 is made variable and the track table is read continuously to the chapter table to minimize the memory usage of the SRAM 31.
In addition, in order to reduce the maximum memory capacity of the SRAM 31, the track table is read for each chapter, and the maximum memory capacity of the SRAM 31 does not have to be changed even if the number of chapters increases. The above processing and configuration are shown in FIGS. 24 (A) and 24 (B).

Next, the relationship between the actual teaching material and the table, and the operation (processing) of the CD-ROM player 1 when the learner operates the CD-ROM player 1 while using this teaching material will be described. 25 and 26 show examples of text. “CHAPTER” of “CHAPTER1” means “chapter”, and is a general term for a set of several (plural) clauses. There is. This value is
Chapter display section 35 of LED display panel section 35 shown in FIG.
It is displayed as a 3-digit number in the 1 part. "STEP
“STEP” of “1” to “STEP3” means “section”, and a set of a plurality of sections constitutes a chapter. This "S
“TEP” corresponds to the track number in the track table in the learning CD-ROM 2 and is displayed in two digits on the step display section 352 in the LED display panel section 35.
The divided branch number in the section corresponds to the index number in the index table, and the step display unit 35
It is displayed in 2 digits on the 2 digit display part to the right of 2. The index 1 of the step (section) shown in FIG. 26 indicates the exercise. The problem sentence is set in the flag area of sub index 0 in the sub index table.
This is displayed by displaying the letters "ANSWER" on the answer display unit 353 with lighting.

The operation of the specific example shown in FIGS. 25 and 26 will be described below with reference to FIG. First, the operation of section (step) 1 will be described. (1) When the learner loads the CD-ROM 2 for learning into the CD-ROM player 1, the microcomputer 30 operates the T-ROM.
After reading the OC and determining that it is the learning CD-ROM, the servo signal processing unit 13, the driver 14, and the mechanical deck 1 are read.
"C0-T0-I00" is displayed on the LED display panel section 35, which controls the CPU 5 to stop the rotation of the learning CD-ROM 2.
“0-0-00” is displayed, and the standby state is set. (2) When the learner presses the GO (progress) button 415, the microcomputer 30 displays the content displayed on the LED display panel unit 35 as "1-1-" indicating "C1-T1-I01".
01 ”, and the audio reproduction process corresponding to this content display is performed. When this voice reproduction process is completed, the CD-ROM player 1 (microcomputer 30) is in the paused state and is waiting for the learner's key input. (3) When the learner presses the GO (progress) button 415, the microcomputer 30 changes the display content of the LED display panel unit 35 to "C1-T" with the index number increased by one.
It is changed to "1-1-02" indicating "1-I02", and the audio reproduction process of index 1 is started. When this audio reproduction process is completed, the CD-ROM player 1 is in the paused state. (4) When the above operation is repeated and the audio reproduction processing of index 7 is performed, the reproduction processing ends and the section of step 1 ends.

Next, the operation of section (step) 2 will be described. (B) When the learner presses the GO (progress) button 415, the microcomputer 30 displays the content displayed on the LED display panel section 35 by "C1-T2-I0", which is the node number increased by one.
Change to "1-2-00" indicating "0", and index 2
The audio reproduction process of is started. Learners find that this section is word practice. (B) Each time the learner presses the GO (progress) button 415, the sounds from word A to word H are reproduced.

The operation of section (step) 3 will be described. (A) When the learner presses the GO (progress) button 415, the microcomputer 30 displays the content displayed on the LED display panel section 35 by "C1-T3-I0", which is the node number increased by one.
Change to “1-3-00” indicating 0 ”and index 3
The audio reproduction process of is started. Learners find this section an exercise. (B) When the learner presses the GO (progress) button 415, the microcomputer 30 advances the display content of the LED display panel unit 35 by one index "C1-T3-I".
01 ”to indicate“ 1-3-01 ”and the characters“ ANS
"WER" is turned on. This allows the learner to visually recognize that there is an exercise. Further, the microcomputer 30 displays the letter “A” on the answer display section 353 below the letter “ANSWER” and operates the ten-key section 410 to prompt the user to input the answer. (C) When the voice reproduction of the question sentence "C1-T3-I01" is completed and the CD-ROM player 1 is in the pause state,
The microcomputer 30 blinks the letter "A" on the answer display section 353 to indicate to the learner that the answer input is required. (D) The learner selects an answer example or a number described in the text and presses the corresponding numeral key of the ten-key pad 410 to answer. When the learner presses a number key not written in the text, the microcomputer 3
0 outputs a warning sound from the speaker 24, which is different from the ADPCM sound used for sound reproduction. The number of the key pressed by the learner is displayed to the right of the letter "A". (E) When the flag indicating that the index information advances to the next index information is set in the flag of the correct sub-index table, the microcomputer 30 reproduces the correct answer and then the next specified index, In the example, the process proceeds to “C1-T3-I02”. (F) When the learner presses the GO (progress) button 415 instead of inputting the answer, the microcomputer 30 unconditionally advances to the next index. (G) Repeat the above operation, "C1-T3-I04"
When the learner presses the GO (progress) button 415, if the next chapter “C2-T1-I00” exists, the microcomputer 30 proceeds to the processing of the next chapter. If the next chapter does not exist, the microcomputer 30 outputs a warning sound to the speaker 24.
Emanates from. As described above, the learner can carry out learning in accordance with the contents recorded in the learning CD-ROM 2 in an interactive form with the CD-ROM player 1.

Next, a practical learning example of the CD-ROM player 1 and the learning CD-ROM 2 of the present invention will be described. The above learning examples are mainly intended for the following basic learning. (1) Learn English by ear (sound). In other words, the learner hears the pronunciation of the native speaker so that he or she can adjust the ear so that English can be understood as a sound without going through Japanese. (2) Have fun while learning. In other words, the learner gets tired of the redundant text flow. In order to keep the learner's willingness to learn and to continue learning motivatedly, some game-like elements are required. The joy of responding to the learner's actions is a great feature of the CD-ROM player. To do so, create a text that includes as many pictures (illustrations, photographs, etc.) as possible. (3) No text. In other words, except for using pictures, basically, learners can be prepared without texts. Basically, by pressing the GO (progress) button 415, the bass sound can be heard in its entirety.

In addition to the functions of the basic CD-ROM player 1 and learning CD-ROM 2 described above, the present invention enables the following expanded learning. (1) "Sound picture matching" (2) "Conversation game" (3) "Let's talk" These details are described below.

Sound picture matching The purpose of sound picture matching is to allow the person who is displayed as a picture in the text and the sound (generated sound) to be directly connected and remembered. For example, in FIG.
As illustrated in Fig. 2, a picture of food is posted in the text so that such food can be learned as English words visually without passing through the Japanese filter. As an example of such an example, the English name of the object illustrated in FIG.
Widely applicable to learning colors, using English verbs, directions, directions, etc.

Conversation game The conversation game is applied to the case where one experiences a real conversation and acquires a practical English conversation expression according to the situation.
In particular, it is preferable that some responses are given to the utterance of the other party, and the development of the conversation changes depending on the reply selected by the learner. This allows the learner to have a grammatical term, acquire the expressions to be learned, and acquire the ability according to the situation. 28 to 31 show partial examples of the text. To play this conversation game, some rules are required, and the rules are described in the text. Examples of such applications include customs services, hotel procedures, and shopping responses.

[0073] Telling a story means that the learner himself / herself has an opportunity to speak and ask, so that the learner not only listens to the contents of the text unilaterally but also actively participates in the conversation. It is intended. What the learner does not understand is suitable for acquiring the habit of listening on the spot, and for the ability to listen to the story and the timing of the utterance in advance. Basically, the GO (progress) button 415 is pushed for each sentence or for each division in a form of listening to the other party's story, and the learning is advanced. However, the number buttons (keys) are facilitated so that the learner can make various utterances on the way, and possible questions can be asked regarding the story at each break. In some cases, the other person can ask questions. It is a further development from the so-called "narration" that is passively listened to, so that you can hear something you do not understand on the spot and receive sound from the other party as a response, so you can feel the depth of the story. 32-35 show partial examples of the text. This example is 6W1H
The example of the story is shown. Other examples include storybooks for children, novels, descriptive text based on maps and photos, and conversations in cooking classes.

As described above, the learning CD of the present invention-
The ROM 2 and the CD-ROM player 1 can be applied to various purposes. Moreover, one CD-ROM player 1 can be used for various learning CD-ROMs.

[0075]

According to the optical read recording medium of the present invention,
It is possible to reproduce the acoustic signal and / or digital data depending on the information recorded on the optical read recording medium without imposing a burden on the reproducing apparatus. In other words, the reproducing apparatus for the optical read recording medium according to the present invention can have a structure dependent on the optical read recording medium, and can process various optical read recording media with a simple structure.

Further, according to the present invention, a flag indicating that other voice information is present is added, and a voice corresponding to the numerical key input by the learner is given by adding a meaning indicating "back voice" to the added flag. Will be playable. Further, according to the present invention, a flag designating an index and a sub index to be advanced next is added to the index information and the sub index information, and a predetermined bit of the additional flag indicates “destination (destination)”. The destination can be specified by the flag provided previously and the flag added by the user, the destination can be advanced to the desired destination, and the reproduction at the destination can be enabled. Further, according to the present invention, a flag for defining reproduction from the next index information in any order is added to the index information, and the learning C is added.
It is possible to reproduce data in the same track of the D-ROM in any order. Further, according to the present invention, it is possible to define the repeat limit number of times when the auto repeat is performed in the index information, and when the learner performs the repeat operation, it is possible to automatically perform the repeated reproduction by the specified limit number of times.

[Brief description of drawings]

FIG. 1 is a plan view of a CD-ROM player applicable for learning as an optical read recording medium of the present invention and a reproducing apparatus thereof.

FIG. 2 is a diagram showing an internal circuit configuration of the CD-ROM player shown in FIG.

3 is a diagram showing a CD-ROM XA format which is a standard of a CD-ROM used in the CD-ROM player shown in FIG.

4 is a diagram showing a format of a CD-ROM used in the CD-ROM player shown in FIG.

5 is a diagram showing a configuration of a table storage area of the CD-ROM shown in FIG.

6 is a diagram showing configurations of a chapter table, a track table, an index table, and a sub index table illustrated in FIG.

7 is a configuration diagram of a chapter table shown in FIG.

8 is a configuration diagram of the track table shown in FIG.

9 is a diagram showing a first configuration example of the index table shown in FIG.

10 is a diagram showing a first configuration example of index flags in the index table shown in FIG.

11 is a diagram showing a first configuration example of the sub-index table shown in FIG.

12 is a diagram showing a first configuration example of a sub index flag in the sub index table shown in FIG.

FIG. 13 is a flowchart showing an operation of the CD-ROM player shown in FIG.

14 is a diagram showing a second configuration example of the index table shown in FIG.

15 is a diagram showing a second configuration example of index flags in the index table shown in FIG.

16 is a diagram showing a second configuration example of the sub-index table shown in FIG.

FIG. 17 is a diagram showing a second configuration example of a sub index flag in the sub index table shown in FIG.

FIG. 18 is a diagram illustrating a text example of the first mode of the second example.

FIG. 19 is a diagram showing an example of a text in a second mode of the second example.

FIG. 20 is a diagram showing an example of a text in a third mode of the second example.

FIG. 21 is a diagram showing the structure of pits on a CD.

FIG. 22 is a flowchart showing a process of reading data from a learning CD-ROM to SRAM.

23 is a flowchart showing a process of reading data of one sector in FIG. 22. FIG.

FIG. 24: Internal RAM and SRA of the microcomputer
It is a figure which shows the memory | storage state of the data of M.

FIG. 25 is a diagram showing a part of text according to an embodiment of the present invention.

FIG. 26 is a diagram showing another portion of text according to the embodiment of the present invention.

FIG. 27 is a diagram showing text for picture matching of sounds as an example of the present invention.

FIG. 28 is a diagram showing a first portion of text in a conversation game according to an embodiment of the present invention.

FIG. 29 is a diagram showing a second part of the text of the conversation game according to the example of the present invention.

FIG. 30 is a diagram showing a third part of the text of the conversation game according to the embodiment of the present invention.

FIG. 31 is a diagram showing a fourth part of the text of the conversation game according to the embodiment of the present invention.

FIG. 32 is a diagram showing a first portion of a story-telling text according to an embodiment of the present invention.

FIG. 33 is a diagram showing a second part of the story telling text according to the embodiment of the present invention.

FIG. 34 is a diagram showing a third part of the story telling text according to the embodiment of the present invention.

FIG. 35 is a view showing a fourth portion of the story telling text according to the embodiment of the present invention.

[Explanation of symbols]

1.-CD-ROM player 2.-CD-ROM for learning 11.-RF amplifier 12.-Digital signal processing unit 13.-Servo signal processing unit 14.-Driver 15 ... Mechanical deck 20 ... Decoding circuit 21 ... SRAM 22..D / A converter 23..Amplifier 24..Speaker 25..Stereo minijack 28..Slider 30..Microcomputer 31..SRAM 32..IC recording unit 33..DRAM 34..Microphone 35・ ・ LED display panel section 40 ・ ・ Numeric keypad section 41 ・ ・ Push button switch section 42 ・ ・ Operation switch group 50 ・ ・ Lid open button 51 ・ ・ Power switch 351 ・ ・ Chapter display section 352 ・ ・ Step display section 353 ・ ・Answer display section 410 ... Numeric keypad section 411 ... Select button 412 ... Button 413 ... external sound record button 414 ... external audio reproduction button 415 ... GO button 420 ... back repeat button 421 · speed button 422 ... fast forward button 423 · Play button 424 · Stop button

Claims (44)

[Claims] 1. An optical read recording medium in which at least an acoustic signal and information used for searching for the acoustic signal are recorded in a hierarchical structure. 2. The information of the hierarchical structure is recorded in a user field of the optical read recording medium.
The optical read recording medium described. 3. The information used for searching the acoustic signal of the hierarchical structure has at least the highest chapter information, track information located below the chapter information, and index information located below the track information. 3. The optical readout recording according to claim 2, wherein the information having the hierarchical structure is combined from upper to lower in a sequentially related manner and the information is sequentially combined to provide search information of a corresponding acoustic signal. Medium. 4. The optical read recording medium according to claim 3, wherein the index information has at least one flag that defines a reproduction method of the acoustic signal. 5. The optical read recording medium according to claim 4, wherein a flag defining a reproduction method of the audio signal in the index information specifies other index information. 6. The optical read recording medium according to claim 4, wherein a flag in the index information defining a reproduction method of the audio signal specifies that the corresponding audio signal is repeatedly reproduced. 7. The information used for searching the acoustic signal of the hierarchical structure includes the highest chapter information, the track information located below the chapter information, and the index information located below the track information. In addition, the sub-index information located at the lower level of the index information is combined with the information having the hierarchical structure in order from the higher order to the lower order, and these information are sequentially combined to obtain the corresponding sound. The optical read recording medium according to claim 3, which provides search information of a signal. 8. The optical read recording medium according to claim 7, wherein one of the flags for defining the reproduction method of the acoustic signal in the index information indicates the presence of the sub-index information. 9. The optical read recording medium according to claim 8, wherein the sub-index information has at least one flag which defines a reproduction method of the acoustic signal. 10. The optical read recording medium according to claim 9, wherein a flag defining a reproduction method of the audio signal in the sub-index information specifies that the corresponding audio signal is repeatedly reproduced. 11. The optical read recording medium according to claim 9, wherein a flag defining a reproduction method of the acoustic signal in the sub-index information specifies other index information. 12. The optical read recording medium according to claim 9, wherein a flag defining a reproduction method of the acoustic signal in the sub index information specifies other sub index information. 13. A flag that defines a reproduction method of the audio signal in the sub-index information specifies a specific audio signal specified by the sub-index information.
12. The optical read recording medium according to any one of 12. 14. The optical readout recording medium according to claim 1, wherein time information is recorded on the optical readout recording medium in addition to the acoustic signal. 15. The optical read recording medium according to claim 1, wherein the acoustic signal includes acoustic learning contents. 16. The optical read recording medium is a CD-RO.
The optical read recording medium according to any one of claims 1 to 15, which is a CD-ROM recorded in the MXA format. 17. The chapter information having the hierarchical structure,
The track information and the index information are
The optical read recording medium according to claim 16, which is recorded in accordance with the mode 2 of the CD-ROM XA format. 18. The chapter information having the hierarchical structure,
17. The optical read recording medium according to claim 16, wherein the track information, the index information, and the sub-index information are recorded according to the mode 2 of the CD-ROM XA format. 19. A means for reading at least an acoustic signal and information used for searching the acoustic signal of the hierarchical structure from an optical read recording medium in which information used for searching the acoustic signal is recorded in a hierarchical structure. And an optical read-out recording medium reproducing apparatus having means for reading and reproducing the acoustic signal based on the information used for searching the acoustic signal of the hierarchical structure read by the reading means. 20. The optical readout according to claim 19, wherein the information of the hierarchical structure is recorded in a user field of the optical read recording medium, and the reading means reads the information of the hierarchical structure from the user field. Recording medium reproducing device. 21. Information used to search for the acoustic signal of the hierarchical structure recorded on the optical read recording medium is at least the highest chapter information, track information located below the chapter information, and the track. It has index information located at the lower level of information, and information having such a hierarchical structure is combined in a sequential relationship from the upper level to the lower level, and the reading means sequentially reads and combines these information. 21. The optical read recording medium reproducing apparatus according to claim 20, wherein search information of a corresponding audio signal is provided to the reproducing means. 22. The index information has at least one flag defining a reproduction method of the audio signal, the reading means provides the flag to the reproduction means, and the reproduction means is based on the flag. 22. The optical read recording medium reproducing apparatus according to claim 21, wherein the reproducing processing is performed by a reproducing method. 23. A flag defining a reproduction method of the acoustic signal in the index information recorded on the optical read recording medium specifies other index information, and the reading means reads the flag. 23. The optical read recording medium reproducing device according to claim 22, further comprising: providing the reproducing means with the reproducing means, and the reproducing means performs reproduction processing based on the flag. 24. A flag defining a reproduction method of the acoustic signal in the index information recorded on the optical read recording medium specifies that the corresponding acoustic signal is repeatedly reproduced, 24. The optical read recording medium reproducing apparatus according to claim 22, wherein the reading means provides the read flag to the reproducing means, and the reproducing means performs repetitive reproduction processing based on the flag. 25. The information used to search for the acoustic signal of the hierarchical structure recorded on the optical read recording medium is the highest chapter information, the track information located below the chapter information, In addition to the index information located in the lower order of the track information, it has sub index information located in the lower order of the index information. The optical read recording medium reproducing apparatus according to any one of claims 22 to 24, wherein the reading means provides the read information to the reproducing means, and the reproducing means performs reproduction processing based on the read information. . 26. One of the flags defining the reproduction method of the acoustic signal in the index information recorded on the optical read recording medium indicates the presence of the sub-index information, and the reading means sets the sub-index information. 26. The optical read recording medium reproducing apparatus according to claim 22, wherein said read information is provided to said reproducing means, and said reproducing means performs reproduction processing based on said read information. 27. The sub-index information recorded on the optical read-out recording medium has at least one flag which defines a reproduction method of the acoustic signal, and the reading means stores the read-out information. 27. The optical read recording medium reproducing apparatus according to claim 22, which is provided to the reproducing means, and the reproducing means performs reproduction processing based on the read information. 28. A flag defining a reproduction method of the acoustic signal in the sub-index information recorded in the optical read recording medium specifies that the corresponding acoustic signal is repeatedly reproduced, 28. The optical read recording medium reproducing apparatus according to claim 22, wherein the reading means provides the read information to the reproducing means, and the reproducing means performs reproduction processing based on the read information. 29. A flag defining a reproduction method of the acoustic signal in the sub-index information recorded on the optical read recording medium specifies other index information, and the reading means reads these. The optical read recording medium reproducing apparatus according to any one of claims 22 to 28, wherein the reproduced information is provided to the reproducing means, and the reproducing means performs reproduction processing based on the read information. 30. A flag defining a reproduction method of the acoustic signal in the sub-index information recorded on the optical read-out recording medium specifies other sub-index information, and the reading-out means stores these sub-index information. 30. The optical read recording medium reproducing apparatus according to claim 22, wherein the read information is provided to the reproducing means, and the reproducing means performs reproduction processing based on the read information. 31. A flag defining a reproduction method of the acoustic signal in the sub-index information recorded on the optical read-out recording medium designates a specific acoustic signal defined in the sub-index information, 31. The optical read recording medium reproducing apparatus according to claim 22, wherein the reading means provides the read information to the reproducing means, and the reproducing means performs reproduction processing based on the read information. 32. On the optical read recording medium, time information is recorded in addition to the acoustic signal, the reading means reads the time information, and the reproducing means reads the read information. 32. The optical read recording medium reproducing apparatus according to claim 19, which reproduces the acoustic signal based on the above. 33. The optical read recording medium reproducing apparatus according to claim 19, wherein the acoustic signal includes acoustic learning contents, and the reproducing means reproduces the acoustic learning contents. 34. The optical read recording medium is a CD-RO.
A CD-ROM recorded in the MXA format, wherein the reading means and the reproducing means are CD-ROMs.
The optical read recording medium according to any one of claims 19 to 34, which performs a reading process and a reproducing process based on the XA format. 35. An optical read recording medium reproducing apparatus according to claim 34, wherein the CD-ROM XA format is recorded in a TOC portion of the optical read recording medium. 36. An operation means for designating time information and track information is provided, and the reading means sequentially outputs the information of the hierarchical structure from the optical read recording medium in response to an operation state of the operation means. The optical read recording medium reproducing device according to any one of claims 19 to 35 for reading. 37. The optical read recording medium according to claim 20, wherein a flag indicating the presence of another voice is provided in the sub-index information. 38. The optical read recording medium according to claim 20 or 37, wherein the index information and the sub-index information have recorded therein information for defining that an index and a sub-index to be advanced next are specified. 39. The optical read recording medium according to claim 38, wherein a flag defining that the stored contents are reproduced in random order from the next index is stored in the index information. 40. The optical read recording medium according to claim 39, wherein a limited number of times when automatically repeated is recorded in the sub-index information. 41. A flag indicating the presence of another voice is provided in the sub-index information of the optical read-out recording medium, and the content recorded in the optical read-out recording medium is reproduced in accordance with an input key. 37. The optical read recording medium reproducing device according to claim 36. 42. The index information and the sub-index information of the optical read-out recording medium record information defining that an index and a sub-index to proceed to are specified, and the information is recorded in any one of the destinations to proceed to. Claim 36 which can proceed
Or 41, an optical read recording medium reproducing apparatus. 43. The optical reading / recording medium stores a flag in the index information defining that the stored contents are to be reproduced from the next index in any order, and the flag can be arbitrarily advanced according to a designated order. 42. An optical read recording medium reproducing apparatus according to item 42. 44. A limited number of times when automatically repeated is recorded in the sub-index information of the optical read recording medium, and the same content is repeated within the designated limited number of times to automatically perform a reproducing process. An optical read recording medium reproducing apparatus according to claim 43.