JP3624900B2 - Recording or reproducing apparatus and recording or reproducing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording or reproducing apparatus and a recording or reproducing method corresponding to a recording medium such as a disk or a tape.
[0002]
[Prior art]
For example, recording media such as optical discs, magneto-optical discs, or magnetic tapes that record audio signals as digital signals are widely used as playback devices that can play music, audio, etc., and are known as compact discs, etc. ing.
[0003]
In particular, in recent years, a magneto-optical disk that can be recorded by a user as well as reproduced by a user (so-called mini disk) has been developed.
This mini-disc system has both a magneto-optical disc that can be recorded / reproduced by the user as a recording medium, an optical disc (pre-mastered type) in which music is recorded in advance as pit information, and is exclusively used for reproduction. There is a hybrid type.
[0004]
These are generally used for music, but in the case of a mini-disc system, the title (album name) of the disc, pre-recorded music, or music recorded by the user is recorded as character information. For example, at the time of reproduction, a display unit provided in the reproduction apparatus can display a disc title, a song title, an artist name, and the like.
[0005]
[Problems to be solved by the invention]
By the way, in the case of a mini-disc or compact disc system, it has a function of interactively controlling the reproduction of recorded music, etc. with respect to the recording medium, that is, like a system known as CD-I. For example, the user cannot set the order of performance songs through dialogue with the recording medium.
[0006]
In the case of a CD player or a mini-disc player, as a so-called program reproduction, a music performance order can be designated by a player operation and played in a desired music order. In each case, and is only a player operation control method, and is not performed in an interactive manner with a recording medium. Therefore, the control operation does not depend on the recording medium, and for example, the control intended by the producer of the recording medium is not performed.
[0007]
[Means for Solving the Problems]
The present invention has been made in view of these problems, and an object thereof is to enable an interactive control operation particularly in a recording medium that can record character information such as a mini disk system.
[0008]
The playback device includes a data area in which a plurality of audio information can be discretely recorded, a management area in which management data for managing a plurality of audio information recorded in the data area is recorded, and a command provided in the management area A command recording means for reading a command recorded in the command recording area, and outputting selection menu information according to the command read by the command reading means. Output means; reproduction means for reproducing audio information in the data area based on management data in the management area; and at least a plurality of audio information recorded in the data area in response to a first user operation on the selected menu information A part is played back in the first order or recorded in the data area in response to a second user operation on the selected menu information. And a control means for controlling the reproducing device to reproduce at least a portion of the plurality of audio information in a second order in which they are.
[0009]
Further, link information indicating the reproduction order of at least a part of the plurality of audio information corresponding to each item in the selection menu information is recorded in the management area of the recording medium, and the control means selects according to the user operation. The reproduction means is controlled to reproduce at least a part of the plurality of audio information in the order based on the link information corresponding to the item.
The control means reproduces the first audio information identified by the first identifier based on the first identifier corresponding to the item as the link information recorded in the management area, and records it in the management area. Based on the second identifier that is the identifier of the audio information to be reproduced next to the first audio information as the link information, the second identifier is identified as the second identifier following the reproduction of the first audio information. The reproducing means is controlled to reproduce the audio information.
[0010]
A reproduction method includes a data area in which a plurality of audio information can be discretely recorded, a management area in which management data for managing a plurality of audio information recorded in the data area is recorded, and a command provided in the management area A command recording step for reading a command recorded in the command recording area, an output step for outputting selection menu information in accordance with the read command, At least a part of the plurality of audio information recorded in the data area according to the first user operation on the selection menu information is reproduced in the first order, or according to the second user operation on the selection menu information A reproduction step of reproducing at least a part of the plurality of audio information recorded in the data area in the second order.
In the management area of the recording medium, link information indicating the reproduction order of at least a part of the plurality of audio information corresponding to each item in the selection menu information is recorded, and is selected according to the user operation in the reproduction step. At least a part of the plurality of audio information is reproduced in the order based on the link information corresponding to the selected item.
Further, in the reproduction step, based on the first identifier corresponding to the item as link information recorded in the recording management area, the first audio information identified by the first identifier is reproduced, and the recording management area Based on the second identifier, which is the identifier of the audio information to be reproduced next to the first audio information as the link information, is identified as the second identifier following the reproduction of the first audio information. The second audio information is reproduced.
[0011]
The recording device includes a data area in which a plurality of audio information can be discretely recorded, a management area in which management data for managing a plurality of audio information recorded in the data area is recorded, and a command provided in the management area For recording data on a recording medium having a command recording area capable of recording the command, a command for outputting the selected menu information is recorded in the command recording area, and the command is recorded according to the first item in the selected menu information. First link information indicating a reproduction order of at least a part of the plurality of audio information and a second link indicating a reproduction order of at least a part of the plurality of audio information according to the second item in the selection menu information Recording means for recording information in the management area is provided.
Further, the recording means includes a first identifier for identifying first audio information corresponding to the first item in the selection menu information as at least first link information, and next to the first audio information. A second identifier for identifying second audio information to be reproduced, and a third identifier for identifying third audio information corresponding to the second item in the selection menu information as at least second link information An identifier and a fourth identifier for identifying the fourth audio information to be reproduced next to the third audio information are recorded in the management area.
[0012]
The recording method includes a data area in which a plurality of audio information can be discretely recorded, a management area in which management data for managing a plurality of audio information recorded in the data area is recorded, and a command provided in the management area In a recording method for recording data on a recording medium having a command recording area capable of recording a command, a command recording step for recording a command for outputting selection menu information to the recording command recording area; First link information indicating a reproduction order of at least a part of the plurality of audio information according to the first item, and reproduction order of at least a part of the plurality of audio information according to the second item in the selection menu information A link information recording step of recording in the management area second link information indicating
Further, in the link information recording step, a first identifier for identifying first audio information corresponding to the first item in the selected menu information as at least first link information, and the first audio information The second identifier for identifying the second audio information to be reproduced next, and the third identifier for identifying the third audio information corresponding to the second item in the selection menu information as at least the second link information 3 and a fourth identifier for identifying the fourth audio information to be reproduced next to the third audio information are recorded in the management area.
[0013]
[Action]
In a recording medium in which a format is set so that management data managed for each piece of audio information such as music can be recorded, a program command can be recorded using this area.
As the program command, if the control contents are set in advance, the recording apparatus or reproducing apparatus side that has read the program command can perform predetermined processing accordingly, and the input / output means can be used as a recording medium. Control by user interaction can be realized.
[0014]
【Example】
Embodiments of the recording medium and recording / reproducing apparatus of the present invention will be described below.
FIG. 1 is an external view of a recording medium and a recording / reproducing apparatus as an embodiment, and FIG. 2 is a block diagram of a main part of the recording / reproducing apparatus.
[0015]
Reference numeral 1 denotes a magneto-optical disk (or optical disk) on which a plurality of musical pieces (audio data) are recorded as a recording medium of a mini-disk system. The optical disk or magneto-optical disk is accommodated in the cartridge K and rotated. Has been made. Normally, the shutter S is urged to the position shown in the figure, and the inner disk 1 is hidden from the surface of the cartridge K, but this cartridge K is loaded into the recording / reproducing apparatus 30 from the disk insertion portion 31. Accordingly, the shutter S is slid by an internal mechanism (not shown) so that the recording surface of the internal disk 1 is exposed.
[0016]
As the recording / reproducing apparatus 30, various input / output means are prepared on its outer casing. For example, an audio signal input terminal 17 and operation keys are provided as input means.
As operation keys, a recording key 51, a reproduction key 52, a pause key 53, a stop key 54, an AMS key 55, a search key 56, a song name input mode key 57, a disc name input mode key 58, a date input mode key 59, and a numeric keypad 61. The display mode key 62, the enter key 63, the dialogue mode key 64, the dialogue keys 65 and 66, etc. are provided for user operations.
Each numeric key of the numeric keypad 61 corresponds to three or two alphabets or spaces, and is used when inputting characters.
[0017]
An audio signal output terminal 16 is provided as an output means of the recording / reproducing apparatus 30, and a display unit 20 for displaying various characters, numbers, images and the like is also arranged on the upper surface of the housing.
For example, an earphone 32 is connected to the audio signal output terminal 16 via a plug 32a, and the output audio signal is output as audio.
[0018]
As shown in FIG. 2, in the recording / reproducing apparatus 30, the magneto-optical disk (or optical disk) 1 is loaded so as to be rotationally driven by the spindle motor 2. Reference numeral 3 denotes an optical head for irradiating the disk 1 with laser light during recording / reproduction, which provides a high level laser output for heating the recording track to the Curie temperature during recording with respect to the magneto-optical disk, and during reproduction. The magnetic Kerr effect provides a relatively low level laser output for detecting data from reflected light.
When the disk 1 is an optical disk in which data is recorded in the form of pits as in the case of a CD, the optical head 3 responds to changes in the reflected light level due to the presence or absence of pits as in the case of a CD player, not the magnetic Kerr effect. Thus, a reproduction RF signal is taken out. Of course, the magnetic field recording operation described later is not performed on the optical disc.
[0019]
In order to perform the data reading operation from the disk 1 in this manner, the optical head 3 is equipped with a laser diode as a laser output means, an optical system including a deflection beam splitter, an objective lens, and the like, and a detector for detecting reflected light. Has been. The objective lens 3a is held by a biaxial mechanism 4 so as to be displaceable in the radial direction of the disk and in the direction of contacting and separating from the disk, and the entire optical head 3 can be moved in the radial direction of the disk by the sled mechanism 5.
[0020]
Reference numeral 6 denotes a magnetic head for applying a magnetic field modulated by the supplied data to the magneto-optical disk, which is disposed at a position facing the optical head 3 with the disk 1 interposed therebetween.
[0021]
Information detected from the disk 1 by the optical head 3 by the reproducing operation is supplied to the RF amplifier 7. The RF amplifier 7 performs processing of the supplied information to reproduce RF signal, tracking error signal, focus error signal, absolute position information (absolute position information recorded as a pregroove (wobbling groove) on the magneto-optical disk 1), Address information, subcode information, focus monitor signal, and the like are extracted. The extracted reproduction RF signal is supplied to the encoder / decoder unit 8. The tracking error signal and the focus error signal are supplied to the servo circuit 9.
Further, the focus monitor signal is supplied to a system controller 11 constituted by, for example, a microcomputer.
[0022]
The servo circuit 9 generates various servo drive signals based on the supplied tracking error signal, focus error signal, track jump command, seek command, rotational speed detection information from the system controller 11, and the like, and the biaxial mechanism 4 and the sled mechanism 5 Is controlled to perform focus and tracking control, and the spindle motor 2 is controlled to a constant angular velocity (CAV) or a constant linear velocity (CLV).
[0023]
The reproduced RF signal is subjected to decoding processing such as EFM demodulation and CIRC by the encoder / decoder unit 8, and is temporarily written in the buffer RAM 13 by the memory controller 12. The reading of data from the magneto-optical disk 1 by the optical head 3 and the transfer of reproduced data from the optical head 3 to the buffer RAM 13 are performed at 1.41 Mbit / sec (intermittently).
[0024]
The data written in the buffer RAM 13 is read at a timing when the reproduction data transfer is 0.3 Mbit / sec and supplied to the encoder / decoder unit 14. Then, a reproduction signal process such as a decoding process for the audio compression process is performed, and an analog signal is made by the D / A converter 15, supplied from a terminal 16 to a predetermined amplifier circuit unit, and reproduced and output. For example, it is output as L and R audio signals.
[0025]
Also, the absolute position information obtained by decoding the pre-groove information output from the address decoder 10 or the address information recorded as data is supplied to the system controller 11 via the encoder / decoder unit 8, Used for control operations.
Further, a lock detection signal of a PLL circuit that generates a bit clock for recording / reproducing operation, and a monitor signal of a frame synchronization signal missing state of reproduced data (L and R channels) are also supplied to the system controller 11.
[0026]
When a recording operation is performed on the disk (magneto-optical disk) 1, the recording signal (analog audio signal) supplied to the terminal 17 is converted into digital data by the A / D converter 18 and then the encoder. / The decoder unit 14 is supplied for audio compression encoding processing. The recording data compressed by the encoder / decoder unit 14 is once written in the buffer RAM 13 by the memory controller 12, read at a predetermined timing, and sent to the encoder / decoder unit 8. The encoder / decoder unit 8 performs encoding processing such as CIRC encoding and EFM modulation, and then supplies the encoded signal to the magnetic head driving circuit 15.
[0027]
The magnetic head drive circuit 15 supplies a magnetic head drive signal to the magnetic head 6 in accordance with the encoded recording data. That is, an N or S magnetic field is applied to the magneto-optical disk 1 by the magnetic head 6. At this time, the system controller 11 supplies a control signal to the optical head 3 so as to output a recording level laser beam.
[0028]
Reference numeral 19 denotes an operation input unit provided with keys used for user operations, and 20 denotes a display unit constituted by the above-described liquid crystal display, for example.
The operation input unit 19 corresponds to the various operation keys (recording key 51 to dialogue key 66) described above with reference to FIG.
[0029]
Reference numeral 21 denotes a RAM (hereinafter referred to as a TOC memory) that holds TOC information in the magneto-optical disk 1.
The discs supported by the recording / reproducing apparatus of this embodiment include a pre-mastered type (optical disc) in which music or the like is recorded in advance as described above, and data rewritable by which a user can record music data or the like. (A magneto-optical disc) and a hybrid type provided with a ROM area in which music is recorded in advance and a magneto-optical area where recording is possible. Data for managing an area where data is recorded and an unrecorded area are recorded as TOC information.
[0030]
The system controller 11 drives the spindle motor 2 and the optical head 3 at the time when the disk 1 is loaded or immediately before the recording or reproducing operation, and the TOC area set on the innermost side of the disk 1, for example. To extract the data. Then, the TOC information supplied to the memory controller 12 via the RF amplifier 7 and the encoder / decoder unit 8 is stored in the TOC memory 21 and used thereafter for controlling the recording / reproducing operation for the disk 1.
[0031]
For example, when recording a certain piece of music, an unrecorded area on the disc is searched from the user TOC (TOC information area that is rewritten in accordance with recording, erasing, etc. of the audio signal) that is a part of the TOC information. The audio data can be recorded here. Further, at the time of reproduction, an area in which music to be reproduced is recorded is determined from the TOC information, and the reproduction operation is performed by accessing the area.
[0032]
The structure as the TOC information is shown in FIGS. FIG. 3 is a data area (hereinafter referred to as P-TOC sector 0) in which TOC information is recorded mainly on music or the like (ROM information) recorded in advance on a disk, and FIG. A data area (hereinafter referred to as P-TOC sector 1) in which character information such as a song title and disc title is recorded. FIG. 5 mainly shows TOC information about a song recorded by a user and a newly recordable unrecorded area. 6 is a data area (hereinafter referred to as U-TOC sector 0), and FIG. 6 is a data area (hereinafter referred to as “data area”) in which character information such as a song title and disc title written by the user is recorded for a song recorded by the user. U-TOC sector 1).
[0033]
As the P-TOC format, areas from sector 0 to sector 4 are prepared, and sector 1 and later are used as necessary.
Further, as the U-TOC format, areas from sector 0 to sector 4 are prepared, and sector 1 and later are used as necessary. Of course, no U-TOC is provided for pre-mastered disks.
[0034]
Each of the data areas in FIG. 3 to FIG. 6 is composed of, for example, a data area of 4 bytes × 587, and a synchronization pattern composed of 1 byte data of all 0 or all 1 at the head position to indicate that it is a TOC area. And a header having an address.
[0035]
For the P-TOC sector 0 in FIG. 3, at the predetermined address position following the header, the disc type and recording level, the number of the first song recorded (First TNO), the number of the last song (Last TNO) ) Lead-out start address RO _A , Power cal area start address PC _A , U-TOC (data area of U-TOC sector 0 in FIG. 5) start address UST _A , Start address RST of recordable area _A Are recorded, and subsequently, a correspondence table instruction data portion having table pointers (P-TNO1 to P-TNO255) for associating each recorded music piece with a parts table in the management table portion described later is prepared. Yes.
[0036]
In the area following the correspondence table instruction data portion, 255 part tables from (01) to (FF) are provided corresponding to the table pointers (P-TNO1 to P-TNO255) in the correspondence table indication data portion. The prepared management table section is prepared. Each parts table includes a start address and an end address as a start point for a certain segment (in this case, a segment means a track portion in which data is physically continuously recorded on a track of a disc). , And the mode information of the segment (track) can be recorded.
[0037]
The track mode information in each part table includes information indicating whether the segment is set to prohibit overwriting or data copying, whether it is audio information, the type of monaural / stereo, and the like. .
[0038]
Each part table from (01) to (FF) in the management table part indicates the contents of the segment by the table pointers (P-TNO1 to P-TNO255) in the corresponding table instruction data part. In other words, the first music piece is a part table (for example, (01) as the table pointer P-TNO1. However, the table pointer actually indicates the byte position in the P-TOC sector 0 by a predetermined calculation process. In this case, the start address of the parts table (01) is the start address of the first song and the end address is the first address. This is the end address of the position where the song is recorded.
Further, the track mode information is information about the first music piece.
[0039]
Similarly, the start address, end address, and track mode information of the recording position of the second music are recorded in the parts table (for example, (02)) indicated by the table pointer P-TNO2 for the second music.
Similarly, since the table pointers are prepared up to P-TNO255, it is possible to manage up to the 255th music on the P-TOC.
Then, by forming the P-TOC sector 0 in this way, it is possible to access and reproduce a predetermined musical piece at the time of reproduction, for example.
[0040]
In the P-TOC sector 1 of FIG. 4, the character information can be recorded corresponding to the disc and the music recorded in advance on the disc and managed by the P-TOC sector 0 as described above. Has been made.
[0041]
That is, similarly to the table pointers (P-TNO1 to P-TNO255) in the P-TOC sector 0, the table pointers (P-T) corresponding to the respective songs (up to the 255th song) recorded as the character table instruction data portion. TNA1 to P-TNA255) are prepared, and a disc name or track name (song name) designated by a table for recording a disc name (title) and a table pointer (P-TNA1 to P-TNA255) is recorded (01). A character table section consisting of 255 parts tables of (FF) is prepared.
[0042]
In each part table of the character table section, album titles and music titles are recorded by ASCII codes. The parts table in which the character information is recorded is specified by the table pointer (P-TNA1 to P-TNA255), so that it is determined which piece of character information corresponds to the song. For example, the name of the first song can be recorded in the parts table specified by the table pointer P-TNA1.
Although illustration and explanation are omitted, the P-TOC sector 4 can also record character information in the same format as the P-TOC sector 1.
For such a P-TOC, for a magneto-optical disk in which pre-mastered music data is not recorded, management information for each music is set to “00”, and music management is performed by the following U-TOC.
[0043]
In the data area shown in FIG. 5, that is, the U-TOC sector 0, a marker code, a model code, a song number (First TNO) of the first song, and a song number (Last) of the last song are placed at predetermined address positions following the header. TNO), sector use status, disk serial number, disk ID, and other data are recorded, and the recorded and recorded music areas recorded by the user are associated with the management table section described later. Therefore, an area in which various table pointers (P-DFA, P-EMPTY, P-FRA, P-TNO1 to P-TNO255) are recorded is prepared as the correspondence table instruction data portion.
[0044]
Corresponding to the table pointers (P-DFA to P-TNO255) of the correspondence table instruction data part, 255 part tables (01) to (FF) are provided as management table parts. Is recorded with a start address as a starting point, an end address as a termination, and mode information of the segment as in the case of the P-TOC sector 0 in FIG. Since each part table segment may be connected to other segments in succession, link information indicating the part table in which the start address and end address of the connected segment are recorded can be recorded. Yes.
[0045]
In the case of a mini-disc, for example, even if the data of one piece of music is physically discontinuous, that is, recorded over a plurality of segments, it is possible to play back while accessing between segments, so that the playback operation is not disturbed. The music to be recorded may be divided into a plurality of segments for the purpose of efficient use of the recordable area. For this reason, link information is provided, for example, numbers (01) to (FF) given to each part table (actually indicated by numerical values that can indicate the byte position in the U-TOC sector 0 by a predetermined arithmetic processing). By specifying the parts table to be linked, the parts table can be linked. (Note that the music recorded in advance is not normally divided into segments, so all the link information in the TOC sector 0 is “(00)” as shown in FIG. 3).
[0046]
That is, in the management table section in the U-TOC sector 0, one part table represents one segment. For example, for a music composed of three segments connected, three parts connected by link information. The segment position is managed by the table.
[0047]
Each part table from (01) to (FF) in the management table part of the U-TOC sector 0 is a table pointer (P-DFA, P-EMPTY, P-FRA, P-TNO1 to P) in the corresponding table instruction data part. -TNO255) indicates the contents of the segment as follows:
[0048]
The table pointer P-DFA shows a defect area on the magneto-optical disk 1 and is the head of one part table or a plurality of part tables in which a track portion (= segment) indicating a defect area due to a scratch or the like is indicated. The parts table is specified. That is, when a defective segment exists, any one of (01) to (FF) is recorded in the table pointer P-DFA, and the defective segment is indicated by the start and end addresses in the corresponding part table. . When there are other defective segments, other part tables are designated as link information in the parts table, and the defective segments are also indicated in the parts table. If there is no other defective segment, the link information is, for example, “(00)”, and there is no link thereafter.
[0049]
The table pointer P-EMPTY indicates the head part table of one or more unused part tables in the management table section. If there is an unused part table, the table pointer P-EMPTY is (01 ) To (FF) is recorded. When there are multiple unused part tables, the part tables are specified sequentially by the link information from the part table specified by the table pointer P-EMPTY, and all unused part tables are linked on the management table section. Is done.
[0050]
For example, in the case of a magneto-optical disk in which audio data such as music is not recorded at all and there is no defect, since the parts table is not used at all, the parts table (01) is designated by the table pointer P-EMPTY, for example. In addition, the parts table (02) is designated as the link information of the parts table (01), the parts table (03) is designated as the link information of the parts table (02), and so on up to the parts table (FF). . In this case, the link information of the parts table (FF) is “(00)” indicating no connection thereafter.
[0051]
The table pointer P-FRA indicates an unrecorded area (including an erased area) in which data can be written on the magneto-optical disk 1, and one or a plurality of track portions (= segments) to be an unrecorded area are indicated. The first part table in the part table is specified. That is, when there is an unrecorded area, any one of (01) to (FF) is recorded in the table pointer P-FRA, and the segment which is the unrecorded area has the start and end addresses in the corresponding part table. Indicated by. Further, when there are a plurality of such segments, that is, there are a plurality of parts tables, the part information in which the link information is “(00)” is sequentially specified by the link information.
[0052]
FIG. 7 schematically shows a management state of a segment to be an unrecorded area using a parts table. This is because when the segment (03) (18) (1F) (2B) (E3) is an unrecorded area, this state continues from the correspondence table instruction data P-FRA to the parts table (03) (18) (1F ) (2B) (E3) represents a state represented by the link. The above-described defect area and unused part table management form are also the same.
[0053]
Table pointers P-TNO1 to P-TNO255 indicate music pieces recorded by the user on the magneto-optical disk 1. For example, in the table pointer P-TNO1, one or more segments in which data of the first music piece is recorded. The parts table that shows the first segment in time is specified.
[0054]
For example, when the music set as the first music is recorded on the disc without the tracks being divided (that is, in one segment), the recording area of the first music is the start in the parts table indicated by the table pointer P-TNO1. And the end address.
[0055]
Also, for example, when the second music piece is recorded discretely on a plurality of segments on the disc, each segment is designated according to the temporal order to indicate the recording position of the music piece. That is, from the part table specified by the table pointer P-TNO2, other part tables are sequentially specified by the link information in accordance with the temporal order, and the part table whose link information is “(00)” is connected. (The same form as in FIG. 7). In this way, for example, all segments in which data constituting the second music is recorded are sequentially designated and recorded, so that the data of this U-TOC sector 0 is used to reproduce the second music or the second music. When overwriting the area, it is possible to access the optical head 3 and the magnetic head 6 to extract continuous music information from discrete segments, or to record using the recording area efficiently.
[0056]
In the area of U-TOC sector 1 in FIG. 6, the user can record and character information can be recorded corresponding to each piece of music managed in U-TOC sector 0.
[0057]
That is, similarly to the table pointer (P-TNO1 to P-TNO255) in the U-TOC sector 0, a table pointer (P-T) corresponding to each piece of music (up to the 255th song) recorded as the character table instruction data portion. TNA1 to P-TNA255) are prepared, and a disc name or track name (song name) designated by a table for recording disc names (titles) and table pointers (P-TNA1 to P-TNA255) is recorded (01) to A character table section comprising 255 (FF) parts tables is prepared.
[0058]
In each part table of the character table section, album titles and music titles are recorded by ASCII codes. The parts table in which the character information is recorded is specified by the table pointer (P-TNA1 to P-TNA255), so that it is determined which piece of character information corresponds to the song. For example, the name of the first song can be recorded in the parts table specified by the table pointer P-TNA1.
[0059]
In this way, since the U-TOC sector 1 area for holding the character information such as the song name of the song and the disc name (album title) is provided corresponding to the song recorded by the user, the user himself For recorded music, it is possible to write a song name or the like corresponding to the music. For example, when the user operates the numeric keypad 61 of the operation unit 19 and inputs alphabetic character information during recording, the character information is written in the TOC area of the magneto-optical disk 1.
[0060]
Although illustration and explanation are omitted, the P-TOC sector 4 can also record character information in the same format as the P-TOC sector 1.
[0061]
In addition, when the character which the user input is the length which cannot be recorded only with one parts table, it will be recorded over several parts tables, and this state is managed by link information.
[0062]
Of these pieces of TOC information, data rewriting is not necessary for P-TOC sector 0 to P-TOC sector 4, and is recorded on the disk as ROM data, while U-TOC sector 0 to U-TOC sector 4 are recorded. Is recorded on the disk as magneto-optical data because the data needs to be rewritten every time the user performs operations such as recording and erasing.
[0063]
The recording / reproducing apparatus of this embodiment for the magneto-optical disk 1 (or optical disk) on which such TOC information is recorded manages the recording area on the disk by using the TOC information read into the TOC memory 21 to record / record. Control playback operation.
Further, in this embodiment, various commands are input as character information input corresponding to the music in the above-described P-TOC sector 1, P-TOC sector 4, or U-TOC sector 1, U-TOC sector 4. The recording / reproducing apparatus side performs various operations by interactive control between the user and the disc 1 in accordance with these TOC information commands.
[0064]
The operation of the recording / reproducing apparatus when various commands are recorded on the disk 1 as character information will be described below. Note that as a character string command, a command recorded in advance by the disk manufacturer, that is, a command written in the P-TOC sector 1 or sector 4, and a command recorded by the user independently, that is, U- Although what was written in the TOC sector 1 or the sector 4 can be considered, any may be sufficient.
When the user writes a command, it is performed using the numeric keypad 61 and the like in the same way as when inputting a song name corresponding to a song.
[0065]
Commands recorded as character information include commands for controlling recording, playback, and editing operations of the mini-disc recording / reproducing apparatus, displaying characters and images on the display unit 20, alarm sounds, chime sounds, etc. A command for operation control such as a command to output a signal, a user's key operation by the operation input unit 19, or the presence or absence of an audio signal such as a microphone input (for example, a terminal 17 or a terminal dedicated to microphone input not shown) There are input processing commands for detecting the sound volume level, or predetermined arithmetic processing, that is, arithmetic processing commands such as variable substitution, numerical logic operation, built-in function calculation, processing flow control command, etc. Types of commands are preset. These commands realize so-called interactive processing.
[0066]
Hereinafter, as an example, five fun songs shown as “FUN” and five sad songs shown as “SAD” are recorded on the disc 1 as shown in FIG. 8, and a total of 10 songs are recorded. And Further, in the P-TOC sector 1 or U-TOC sector 1 as character information, a part table (disc name area, that is, the 76th and 77th lines of the sector in FIG. 4 or FIG. 6) is recorded. The following command is recorded in the parts table guided by the table pointers P-TNA1 to P-TNA10 corresponding to each of the first to tenth music pieces and the first to tenth music pieces. The operation in the case of being performed will be described. It is assumed that the parts tables (01) to (10) are guided by the table pointers P-TNA1 to P-TNA10.
[0067]
・ Disk name area
“PRINT“ A: FUN B: SAD ”: IF BUTTON A THEN TN01 BUTTON B THEN TN02”
・ Parts table (01)
"IF END THEN TN03"
・ Parts table (02)
"IF END THEN TN04"
・ Parts table (03)
"IF END THEN TN05"
・ Parts table (04)
"IF END THEN TN06"
・ Parts table (05)
"IF END THEN TN07"
・ Parts table (06)
"IF END THEN TN08"
・ Parts table (07)
"IF END THEN TN09"
・ Parts table (08)
"IF END THEN TN10"
・ Parts table (09)
"IF END THEN TN01"
・ Parts table (10)
"IF END THEN TN02"
[0068]
The contents of this command are as follows.
In the disc name area, as the operation of the recording / reproducing apparatus, a command for displaying the characters “A: FUN B: SAD” is displayed on the display unit, and then the A button (dialog key 65) is operated. The track number 01, that is, the first song, and when the B button (dialog key 66) is operated, the track number 02, that is, the second song, indicates a command to be reproduced.
[0069]
Further, for the parts table corresponding to each music, the music to be played after the performance of the music is specified. That is, it is indicated that the third song should be reproduced subsequently for the first song, the fourth song is indicated to be reproduced subsequently for the second song, and the fifth song is subsequently indicated for the third song. In the same manner, the music to be played back up to the 10th music is designated. In other words, in this case, it is set so that a pleasant music is continuously played after the end of the fun music, and a sad music is continuously played after the end of the sad music.
[0070]
In the recording / reproducing apparatus 30 of this embodiment, when the disc 1 is loaded and the TOC information is read from the disc 1, these commands are also read. When the system controller 11 is set to the interactive mode, the system controller 11 The operation corresponding to these commands is performed.
[0071]
That is, normally (after the power is turned on), the recording / reproducing apparatus 30 performs the above-described recording / reproducing operation as a normal mini-disc recording / reproducing apparatus, but when the user operates the interactive mode key 64, The system controller 11 shifts to the interactive mode process and executes various controls according to the command.
[0072]
When the system controller 11 is set to the interactive mode, when the above command is read from the disk 1, the system controller 11 first displays “A: FUN B: on the display unit 20 based on the command recorded in the disk name area. The operation of displaying the characters “SAD” is performed.
And here, it waits for a user's operation.
On the other hand, the user presses the A button (dialogue key 65) when he wants to listen to fun music, and presses the B button (dialogue key 66) when he wants to listen to sad music.
[0073]
When the A button 65 is pressed, the system controller 11 proceeds to the reproduction of the first music according to the command. That is, in the P-TOC sector 0 or the U-TOC sector 0, the optical head 3 is accessed to the start address indicated in the parts table derived from the table pointer P-TNO1, and reproduction is performed until the end address of the music is reached. Do.
[0074]
At this time, the system controller 11 takes in the command recorded corresponding to the first music piece and responds to the instruction. That is, in this case, since the third music is designated next to the first music, when the reproduction of the first music is finished, the start address of the third music is determined from the TOC information, and accessed to access the third music. Start playing. Further, similarly, after the reproduction of the third music, the reproduction of the fifth music is started according to the command recorded corresponding to the third music. In the same manner, the fifth music, the seventh music, the ninth music, the first music, the third music, and so on are played, that is, only the fun music is played. become.
[0075]
On the other hand, when the user presses the B button 66 to hear a sad song, the system controller 11 proceeds to playback of the second song in response to the command. That is, in the P-TOC sector 0 or the U-TOC sector 0, the optical head 3 is accessed with respect to the start address indicated in the parts table derived from the table pointer P-TNO2, and playback is performed until the end address of the music is reached. Do.
[0076]
At this time, the system controller 11 takes in the command recorded corresponding to the second music piece and responds to the instruction. That is, in this case, since the 4th music is designated next to the 2nd music, when the playback of the 2nd music is finished, the start address of the 4th music is determined from the TOC information and accessed to access the 4th music. Start playing. Further, similarly, after the reproduction of the fourth music, the reproduction of the sixth music is started in accordance with the command recorded corresponding to the fourth music. Similarly, the sixth song, the eighth song, the tenth song, the second song, the fourth song, and so on are played back, that is, only a sad song is played. become.
[0077]
For example, as described above, in accordance with a command recorded on the disc 1, interactive playback operation control via a dialogue between the user and the disc 1 is realized in the recording / playback apparatus 30.
[0078]
Although the command and the operation by the example in this example are fairly simple music piece control, it goes without saying that various interactive controls can be performed according to the setting of the usable command and the recording capacity. .
[0079]
For example, music software in which the disc producer has set a plurality of types of music orders recorded separately from the normal music order and allows the user to select, for example, a predetermined display based on commands according to performance Music software that can be performed or prompts a user operation during a performance to enable a predetermined response and can change a performance order or a performance mode according to a key operation or a microphone input is realized.
[0080]
It can also be realized as an application for music quiz, learning, etc. In this case, buzzer sound or chime sound is output to the user's key input (for example, quiz answer input) or microphone input. Is also possible.
Further, when the user can write a command, the user can perform desired operation settings, and the application range is further expanded.
[0081]
In addition, although the Example as a recording / reproducing apparatus was given as an apparatus corresponding to the recording medium of an Example, the apparatus only for reproduction | regeneration may be sufficient. Further, it may be a recording-only device that records audio data through dialogue.
Further, the present invention is not limited to a mini-disc system, and any system that can record / reproduce character information corresponding to audio data can be employed.
[0082]
【The invention's effect】
As described above, according to the present invention, character information serving as a command is recorded on a recording medium, and the recording or reproducing apparatus is configured to perform processing according to this command, so-called interactive information. There is an effect that it is possible to construct a voice / music system that can operate and can perform various operations according to the exchange with the user.
[Brief description of the drawings]
FIG. 1 is an external view of a recording medium and a recording / reproducing apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram of a recording / reproducing apparatus according to an embodiment.
FIG. 3 is an explanatory diagram of a data structure of a P-TOC sector 0 read by the recording / reproducing apparatus according to the embodiment.
FIG. 4 is an explanatory diagram of a data structure of a P-TOC sector 1 read into the recording / reproducing apparatus of the embodiment.
FIG. 5 is an explanatory diagram of a data structure of a U-TOC sector 0 read by the recording / reproducing apparatus of the embodiment.
FIG. 6 is an explanatory diagram of a data structure of a U-TOC sector 1 read into the recording / reproducing apparatus of the embodiment.
FIG. 7 is an explanatory diagram of a data link structure of U-TOC sector 0 read by the recording / reproducing apparatus of the embodiment.
FIG. 8 is an explanatory diagram of music recorded on the recording medium of the embodiment.
[Explanation of symbols]
1 disc
3 Optical head
6 Magnetic head
8,14 Encoding / decoding part
11 System controller
12 Memory controller
13 Buffer RAM
16 output terminals
17 Input terminal
19 Operation input section
20 Display section
21 TOC memory
30 Recording / playback device
32 Earphone
61 Numeric keypad
64 Interactive mode key
65, 66 Dialog keys

Claims (10)

A data area in which a plurality of audio information can be discretely recorded, a management area in which management data for managing a plurality of audio information recorded in the data area is recorded, and a command provided in the management area can be recorded In a reproducing apparatus for reproducing a recording medium having a command recording area,
Command reading means for reading a command recorded in the command recording area;
Output means for outputting selection menu information according to the command read by the command reading means;
Playback means for playing back audio information in the data area based on management data in the management area;
In response to a first user operation on the selection menu information, at least a part of the plurality of audio information recorded in the data area is reproduced in a first order, or a second user operation on the selection menu information Control means for controlling the reproduction means to reproduce at least a part of the plurality of audio information recorded in the data area in a second order according to
A playback device comprising: In the management area of the recording medium, link information indicating a reproduction order of at least some of the plurality of audio information according to each item in the selection menu information is recorded,
The control means controls the reproduction means to reproduce at least a part of the plurality of audio information in an order based on the link information corresponding to an item selected in accordance with the user operation. The playback apparatus according to claim 1. The control means includes
Based on the first identifier corresponding to the item as the link information recorded in the management area, the first audio information identified by the first identifier is reproduced,
Following reproduction of the first audio information based on a second identifier that is recorded in the management area and that is to be reproduced next to the first audio information as the link information. The playback apparatus according to claim 2 , wherein the playback means is controlled to play back the second audio information identified by the second identifier. A data area in which a plurality of audio information can be discretely recorded, a management area in which management data for managing a plurality of audio information recorded in the data area is recorded, and a command provided in the management area can be recorded In a reproducing method for reproducing a recording medium having a command recording area,
A command reading step for reading a command recorded in the command recording area;
An output step of outputting selection menu information according to the read command;
In response to a first user operation on the selection menu information, at least a part of the plurality of audio information recorded in the data area is reproduced in a first order, or a second user operation on the selection menu information And a reproduction step of reproducing at least a part of the plurality of audio information recorded in the data area in a second order. In the management area of the recording medium, link information indicating a reproduction order of at least some of the plurality of audio information according to each item in the selection menu information is recorded,
5. The reproduction method according to claim 4, wherein, in the reproduction step, at least a part of the plurality of audio information is reproduced in an order based on the link information corresponding to an item selected in accordance with the user operation. . In the reproduction step,
Based on the first identifier corresponding to the item as the link information recorded in the management area, the first audio information identified by the first identifier is reproduced,
Following reproduction of the first audio information based on a second identifier that is recorded in the management area and that is to be reproduced next to the first audio information as the link information. The reproduction method according to claim 5 , wherein the second audio information identified by the second identifier is reproduced. A data area in which a plurality of audio information can be discretely recorded, a management area in which management data for managing a plurality of audio information recorded in the data area is recorded, and a command provided in the management area can be recorded In a recording apparatus for recording data on a recording medium having a command recording area,
Record a command for outputting selection menu information in the command recording area,
First link information indicating a reproduction order of at least a part of the plurality of audio information corresponding to the first item in the selection menu information, and the plurality of the plurality of items corresponding to the second item in the selection menu information A recording apparatus comprising recording means for recording, in the management area, second link information indicating a reproduction order of at least a part of audio information. The recording means includes
A first identifier for identifying first audio information corresponding to a first item in the selection menu information as at least the first link information, and to be reproduced next to the first audio information A second identifier for identifying second audio information;
A third identifier for identifying third audio information corresponding to the second item in the selection menu information as at least the second link information, and to be reproduced next to the third audio information The recording apparatus according to claim 7, wherein a fourth identifier for identifying fourth audio information is recorded in the management area. A data area in which a plurality of audio information can be discretely recorded, a management area in which management data for managing a plurality of audio information recorded in the data area is recorded, and a command provided in the management area can be recorded In a recording method for recording data on a recording medium having a command recording area,
A command recording step for recording a command for outputting selection menu information in the command recording area;
First link information indicating a reproduction order of at least a part of the plurality of audio information corresponding to the first item in the selection menu information, and the plurality of the plurality of items corresponding to the second item in the selection menu information A link information recording step for recording, in the management area, second link information indicating a reproduction order of at least a part of the audio information;
A recording method comprising: In the link information recording step,
A first identifier for identifying first audio information corresponding to a first item in the selection menu information as at least the first link information, and to be reproduced next to the first audio information A second identifier for identifying second audio information;
A third identifier for identifying third audio information corresponding to the second item in the selection menu information as at least the second link information, and to be reproduced next to the third audio information The recording method according to claim 9, wherein a fourth identifier for identifying fourth audio information is recorded in the management area.

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