JP3518593B2 - Recording device and recording method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording device and a recording method, and can be applied to, for example, a magneto-optical disk device for recording data such as music on a disk-shaped recording medium.

[0002]

2. Description of the Related Art Conventionally, in a magneto-optical disk device,
There is one that is capable of discretely recording this audio data on a magneto-optical disk by thermomagnetically recording continuous audio data in a predetermined block unit.

That is, in this magneto-optical disk device, sequentially input audio data is input to an audio compression circuit, divided into blocks at a predetermined cycle, and audio compression processing is performed on a block-by-block basis. Called a sound group).

Further, in the magneto-optical disk device, for the audio data of this sound group, two consecutive sectors are formed into two sectors, and further 36 sectors are formed into one cluster. Can be recorded in cluster units based on this sector.

That is, as shown in the form of a table in FIG. 6, in this magneto-optical disk device, there are 23 sectors in each sector.
Data of 52 bytes can be assigned, and the area represented by the vertical address "0" to "3" is assigned to the header.

Further, in the magneto-optical disk apparatus, the area of vertical addresses "0" to "2", 12 bytes, is assigned to a sync pattern (sync), and a formatted predetermined sync pattern is assigned to the sync pattern (sync). The address of the cluster is recorded in the first byte and the second byte of the subsequent vertical address "3".

In the magneto-optical disk device, this sector is formed continuously on the magneto-optical disk, and 36 sectors are grouped to form a cluster. This cluster management address is 14 bits. It is designed to assign the address of.

Further, in the magneto-optical disk device, the address of the sector is assigned after the address of the cluster, and then the mode of the magneto-optical disk is recorded.

Following this header, in the magneto-optical disk device, a main data area of 2336 bytes is formed,
The data desired by the user can be assigned to this area.

That is, as shown in FIG. 7, in a magneto-optical disk for audio, 0 is set as mode data.
Data of 2h is allocated, data of 00h continues for 4 bytes following the header, and audio data is recorded subsequently. In the magneto-optical disk device, sound groups are assigned to the sectors thus formed, as shown in FIG.

That is, in the even-numbered sector, the main data area following the 00h data of the vertical address "4" corresponding to the table of FIG. Is divided, and the data of the sound group is sequentially assigned to each area.

Further, by dividing the main data area in this way, the area of "53" with the remaining vertical address is allocated to the sixth sound group 5, and the area from the vertical address "5" of the following odd sector is allocated to 6 areas. Record the remaining data for the th sound group 5.

Further, in the magneto-optical disk device, the vertical address of this odd sector is "105".
The remaining areas are divided in units of, and the remaining sound groups are assigned to each area.

As a result, in this type of magneto-optical disk device, audio data that is sequentially input is subjected to voice compression processing to form a sound group, a sector is formed by this sound group, and a cluster is formed by this sector. Audio data can be recorded in units of this cluster.

That is, when audio data is recorded in cluster units in this way, if a large-capacity memory circuit is used as a buffer memory, for example, when track jumping is caused by vibration during recording, the track jumped cluster is re-recorded. As a result, continuous audio data can be recorded on the magneto-optical disk without interruption.

Further, in the magneto-optical disk device, a recording area for recording audio data management data is formed on the inner peripheral side of the magneto-optical disk, and main data composed of data of this cluster is formed on the outer peripheral side of this recording area. A recording area is formed.

As a result, in the magneto-optical disk device, audio data can be sequentially recorded in cluster units in the main data recording area.

On the other hand, in the management data recording area, management data composed of UTOC data is recorded, so that in the magneto-optical disk device, this U data is recorded.
Desired audio data can be reproduced by referring to the TOC data. That is, in the UTOC data, the management data is defined in units of sectors, like the main data, and the first to fourth sectors are standardized.

Of the first to fourth sectors, the second to fourth sectors are specified as options, and the first sector (that is, sector 0) is as shown in FIG. After allocating the address of the cluster following the header, the data of 00h is recorded subsequently.

Further, in the first sector, after allocating predetermined code data (Maker code, Model code), data representing the recording start position and the end position of the main data (First TNO, Last TNO), etc. are allocated. It is designed to be done.

At the vertical address "11" of the first sector, 2 bytes of disc identification data can be recorded, and then a pointer (P indicating the position of the defective area of the main data recording area is set). -DFA), a pointer (P-) that indicates the start position of the unrecorded area of the main data recording area
EMPTY) is assigned.

At the subsequent vertical address "12", a pointer (P-FRA) indicating the head position of the main data recorded in the main data recording area is assigned, and then a pointer indicating the recording start position of each data. (P-TNO1,
..., P-TNO255) is assigned.

Thus, in the magneto-optical disk device for recording / reproducing an audio signal, this pointer (P-FRA
, P-TNO1, ..., P-TNO255), the head position of each song recorded can be detected.

That is, in the area below the succeeding vertical address "76", the start address (Start address) and the end address (End address) representing the recording start position and recording end position of the main data are recorded. Pointer (P-FRA, P-TNO1, ......, P-TNO255)
In the above, the recording position of this start address is designated.

As a result, in the magneto-optical disk device, the recording position of the music designated by the user can be detected by detecting the start address and the end address designated by the pointer.

That is, in the start address and the end address, as shown in FIG. 10, the cluster address is recorded in 14 bits, the sector address is recorded in 6 bits, and the sound group address is recorded in 4 bits. Thus, in the magneto-optical disk device, it is possible to perform processing such as cueing of a piece of music with respect to audio data recorded in cluster units in units of clusters, sectors, and sound grapes.

A recording unit designated by this set of start and end addresses is called a part.

Further, in this UTOC data, following this start address, mode data (Track mode) indicating the processing mode of each part is recorded, whereby copy inhibit data, write inhibit data, audio data, stereo data, The monaural data and the like can be identified, and the presence or absence of emphasis processing and the like can be identified.

On the other hand, in the end address,
Next, a link pointer (Link-
P) is recorded, and this link pointer (L
Ink-P), you can specify the recording position of the start address corresponding to this end address.

That is, as shown in FIG. 11, when audio data is recorded for the first time on a magneto-optical disk on which no audio data is recorded, in the magneto-optical disk device, the first song, the second song, ... The audio data is recorded so that
(A)).

In this case, the audio data of each performance is recorded on the magneto-optical disk with parts P1, P2, P3, ... Designated by a set of start address and end address.

On the other hand, when the performance of the fifth music having a long performance time is recorded after the second music and the fourth music are erased, continuous audio data of the fifth music is divided into the second music and the second music. It will be recorded in the fourth part P2 and P4.

In such a case, in the magneto-optical disk, when the start address of the fifth music piece is designated by the pointer, the performance start position of the second part P2 can be detected by this start address, and this start is further started. This part P2 is the end address that forms a pair with the address.
The recording end position is detected.

Further, in the magneto-optical disk, the link pointer (Link-P) following this end address is used to pointer the fourth part P4 (P-FRA, P-TNO1, ..., P-TNO2).
As in 55), the start address can be detected, so that in the magneto-optical disk device, even if the recording and erasing process is repeated, the UTOC is rewritten each time to make the recording area of the magneto-optical disk effective. It is designed to be able to record audio data.

Thus, the pointers (P-FRA, P-
In TNO1, ... P-TNO255), it is formed corresponding to each performance recorded on the magneto-optical disk, and the corresponding parts are designated together with the link pointer.

On the other hand, in the case where the second music is erased from the continuously recorded audio data, the head position of the unrecorded area of the main data recording area is represented in the magneto-optical disk device. Pointer (P-EMPTY
) Specifies this erased area.

That is, in this pointer (P-EMPTY), the start address of the corresponding part is designated in the same manner as the pointer (P-FRA, P-TNO1, ..., P-TNO255). In the magnetic disk device, when, for example, the second and fourth songs are erased, the designation of the parts P2 and P4, which have been designated by the pointers (P-TNO1, P-TNO2, ...) Until then, is performed in the unrecorded area. The pointer (P-EMPTY) that represents the start position of the and the link pointer (Link-P) of the end address that makes a pair with the start address specified by this pointer are rewritten to specify, thereby easily erasing the audio data. It is designed to be obtained (FIG. 11 (B)).

As a result, in the magneto-optical disk device, after reproducing the audio data between the clusters designated by the start address and the end address in the cluster unit, the data is processed in the sector unit so that the start address and the end address are changed. It is designed to play the performance specified by the sound group address,
Thereby, the audio data discretely recorded on the magneto-optical disk can be easily reproduced.

At this time, in the magneto-optical disk device,
In this way, record audio data in cluster units,
By playing audio data in cluster units, a large-capacity memory circuit is used as a buffer memory as in recording, and even when track jumping is performed during playback, the track jumped cluster is replayed to eliminate skipping. It is designed so that it can be prevented.

Incidentally, in the second sector (sector 1) among the remaining sectors, as shown in FIG.
Header, pointer (P-TNO1, P-TNO2,
..) is formed, a disk name and a track name can be assigned by ASCII code corresponding to the start address and the end address.

On the other hand, in the third sector (sector 2), as shown in FIG. 13, after the header and the like are formed as in the first sector, the pointer (P-
TNO1, P-TNO2, ...) corresponding to the pointer (P-TRD1, P-
TRD2, ...) is formed.

As a result, in the third sector (sector 2), the pointers (P-TNO1, P-TNO2, ...
For each performance corresponding to ...), the pointer (P-TRD1, P-
TRD2, ……) recording time (Track rec data and time)
Etc. can be recorded.

Further, in the fourth sector (sector 4), as shown in FIG. 14, pointers (P-TNA1, P-TNA1
TNA2, ...) is formed so that the disc name and track name can be recorded in Kanji code.

Thus, this magneto-optical disk device is connected to an audio device such as an analog tape player, an LP record player, a compact disk player or the like as an audio information source, and an analog audio signal output from these audio devices is converted into a digital signal. To convert and record audio data, and to connect a digital audio device such as a compact disc player, a digital audio tape recorder, a magneto-optical disc device, etc. so that a digital audio signal output from these digital audio devices can be recorded. Has been done.

[0045]

By the way, in an audio device serving as a music information source, for example, in a compact disc player, by setting a so-called program reproduction mode, a desired performance is reproduced in a song order desired by the user. be able to.

Therefore, in the magneto-optical disk apparatus, by connecting the audio equipment set in the program reproduction mode as described above and setting the recording mode, the recording / reproducing operation for each performance is omitted and the order of tunes desired by the user is omitted. You can record the desired performance with. That is, once the audio device and the magneto-optical disk device are set, the operation until the end of recording can be omitted (this recording is hereinafter referred to as automatic recording).

However, for example, some compact discs have a performance time of only about 30 minutes recorded as a whole.

Therefore, in the magneto-optical disk device, when the magneto-optical disk device is loaded with a magneto-optical disk capable of recording for 60 minutes and the performance of this compact disk is automatically recorded, after all, the performance on the compact disk player side is finished. , It will be recorded for 30 minutes in silence.

In order to stop this silent recording, the user has to stop the magneto-optical disk device. In the end, even in the case of automatic recording as described above, the user's operation is actually required, which is practical. There were still insufficient problems.

The present invention has been made in consideration of the above points, and a recording device and a recording device that can remarkably improve the usability when recording music information from an audio device and improve the reliability during recording. It is intended to propose a method.

[0051]

In order to solve such a problem, in the present invention, digital data supplied from a first recording medium on which a plurality of songs are recorded and management data for managing the digital data are provided. In a recording device for recording on a second recording medium, a recording mode selecting unit for selecting a mode for recording only a desired one of a plurality of songs recorded on the first recording medium, and a mode is selected by the recording mode selecting unit. In this case, the detecting means for detecting the change from the desired song to the next song by detecting the signal level of the digital data, and the case where the detecting means detects the change from the desired song to the next song, Management data based on the recording stop position at which the recording of the input digital data to the second recording medium is stopped and the recording of the input digital data to the second recording medium is stopped. A control unit for controlling the rewriting process is provided, and the detection unit detects the change from the desired song to the next song after a predetermined period has elapsed since the recording of the desired song on the second recording medium was started. By starting the recording, the silent period immediately after the start of recording is mistakenly prevented from being detected as a music interval.

As a result, in this recording apparatus, the recording operation is stopped and controlled on the basis of the management data for managing the digital data, so that the user does not have to stop the recording operation after confirming the end of each song. It is possible to record one song at a time.

Further, according to the present invention, in the recording method of recording the digital data supplied from the first recording medium on which a plurality of songs are recorded and the management data for managing the digital data on the second recording medium, By detecting the first step of selecting a mode in which only one desired music piece is recorded from the plurality of music pieces recorded in the first recording medium and the signal level of the digital data when the mode is selected, The second step for detecting the change from the desired song to the next song, and when the change from the desired song to the next song is detected, the recording of the input digital data to the second recording medium is stopped. And a third step for controlling the rewriting process of the management data based on the recording stop position where the recording on the second recording medium is stopped. By starting the detection of the change from the desired song to the next song after a predetermined period has elapsed from the start of recording on the second recording medium, the silent period immediately after the start of recording is not erroneously detected as a song interval. I chose

As a result, in this recording method, the recording operation is stopped and controlled based on the management data for managing the digital data, so that the user does not have to confirm the end of the song and stop the recording operation automatically. It is possible to record one song at a time.

[0055]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings.

(1) First Embodiment FIG. 1 shows a block diagram of a recording / reproducing apparatus using a magneto-optical disk (mini disk) as a recording medium.

Reference numeral 1 denotes, for example, a magneto-optical disk on which a plurality of musical pieces (audio data) are recorded, which is rotationally driven by a spindle motor 2. Reference numeral 3 denotes an optical head for irradiating the magneto-optical disk 1 with a laser beam, which intermittently outputs a high level laser output to heat a recording track to the Curie temperature, while at the time of reproduction, The laser output is switched to a relatively low level, whereby the magnetic Kerr effect can be used to detect data from reflected light.

Therefore, the optical head 3 is equipped with a laser diode as a laser output means, an optical system including a polarization beam splitter and an objective lens, and a detector for detecting reflected light. Further objective lens 3
The a is held by the biaxial mechanism 4 so as to be displaceable in the radial direction of the disc and in the direction in which it comes in and out of contact with the disc, whereby tracking control and focusing control can be performed in the recording / reproducing apparatus. The entire optical head 3 is movable in the disk radial direction by the sled mechanism 5, so that in the recording / reproducing apparatus, the optical head 3 can be moved to seek a desired recording track.

Reference numeral 6 denotes a magnetic head, which applies a modulating magnetic field whose polarity changes according to the supplied data to the magneto-optical disk, and is arranged at a position facing the optical head 3 with the magneto-optical disk 1 interposed therebetween.

In the reproducing operation, the recording / reproducing apparatus detects information from the magneto-optical disk 1 by the optical head 3 and supplies this information to the RF amplifier 7. The RF amplifier 7 calculates the reproduction RF signal, the tracking error signal, the focus error signal, and the absolute position information (absolute position information recorded in the magneto-optical disc 1 as pregroove (foof ring groove)) by the arithmetic processing of the supplied information. ), Address information, subcode information, focus monitor signal, etc. 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, and the address information is supplied to the address decoder 10 and demodulated. Further, the focus monitor signal is sent to the system controller 1 including a microcomputer, for example.
1 is supplied.

The servo circuit 9 includes a tracking error signal, a focus error signal, and a system controller 11
Based on the output data of the above, various servo drive signals are generated by the track jump command, seek command, rotation speed detection information, etc., and the biaxial mechanism 4 and the sled mechanism 5 are controlled to perform focus control and tracking control, and a spindle motor. 2 is a constant angular velocity (CAV) or constant linear velocity (C
It is rotationally driven under the condition of (LV).

The reproduced RF signal is subjected to EFM demodulation, decoding such as CIRC in the encoder / decoder section 8, and is once 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 the reproduced data from the optical head 3 to the buffer RAM 13 are 1.41 [Mbit
/ sec] data transfer rate.

The data written in the buffer RAM 13 is read at a timing at which the data transfer rate becomes 0.3 [Mbit / sec] and supplied to the encoder / decoder section 14. Then, this data is subjected to reproduction signal processing such as decoding processing for audio compression processing in the encoder / decoder section 14, converted into an analog signal by the D / A converter 15, and supplied from a terminal 16 to a predetermined amplification circuit section.
As a result, for example, L and R audio signals are output.

The address decoder 10 outputs absolute position information obtained by decoding the pre-groove information or address information recorded as data, and these information are sent to the system controller 11 via the encoder / decoder unit 8. It is supplied and used for various control operations. Further, a PL for generating a bit clock for recording / reproducing operation
The clock detection signal of the L circuit and the monitor signal of the missing state of the frame synchronization signal of the reproduction data (L, R channels) are also supplied to the system controller 11.

In the recording / reproducing apparatus, when recording data on the magneto-optical disk 1, for example, an audio signal from a compact disk player, a tape player, or another mini disk player is supplied to the terminal 17a or 17b. It will be.

Here, the terminal 17a is an analog signal input terminal, and the recording signal (analog audio signal) supplied to the terminal 17a is converted into digital data by the A / D converter 18 and then the encoder / decoder section. 1
4 and audio compression encoding processing is performed.

On the other hand, a terminal 17b represents an input terminal for a digital signal, and audio information reproduced by an external compact disc player or a mini disc player is supplied in the form of digital data, and the digital data is
The data is supplied to the encoder / decoder unit 14 as recording data. This digital data includes control data such as subcode information as well as voice information.

The recording data compressed in the encoder / decoder section 14 is once written in the buffer RAM 13 by the memory controller 12, then read out at a predetermined timing and sent to the encoder / decoder section 8. Then, the encoder / decoder unit 8 performs encoding processing such as CIRC encoding and EFM modulation, and then supplies it to the magnetic head drive circuit 15.

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, the magnetic head drive circuit 15
Applies a magnetic field of N or S pole to the magneto-optical disk 1 by driving the magnetic head 6 to form a modulation magnetic field. At this time, the system controller 11 supplies a control signal to the optical head 3 so as to output laser light of a recording level. Here, the encoder / decoder unit 1
When the digital data is input from the terminal 17b, the reference numeral 4 extracts the control data S _C in the digital data to manage the recorded music and supplies it to the system controller 11.

For example, digital data transmitted from a compact disc player or the like and input to the terminal 17b includes U-bit data, C-bit data, V-bit data as control data in addition to audio information as well known. Exists.

U-bit data are so-called P, Q, R,
Subcode data formed by each data of S, T, U, V, W is included, and C bit data includes category data for discriminating the recording medium, sampling frequency data, clock data, optical system data, etc. Has been.
Further, the V bit data includes an error flag and the like.

The system controller 11 manages various recording operations by using the required data of these control data S _C , and records with reference to Q data of U bit data as described later. Update the track number of the existing data. The system controller 1
In No. 1, the source of the input data is discriminated using V bit data.

The structure of the Q data differs depending on various recording media. FIG. 2A shows the Q data structure of the compact disc, and FIG. 2B shows the Q data structure of the mini disc.

In the case of a compact disc, the Q data is
Following the control bit CTL and the address bit Ad, the track number TNO of the current music piece is shown, followed by index information INDEX. Index information INDEX
Is information obtained by further subdividing the inside of the music, and index information for a music of a certain track number is INDEX =
It is possible to subdivide from "01" to "99". Of course, if the song is not subdivided, the end position of the song is INDEX = "01"
Is continuously attached. The index information is INDEX = "00" at the inter-track position (during pause) from the end of a certain music to the start of the next music.

Subsequently, the Q data is provided with elapsed time information (MIN, SEC, FRAME) in the music by minutes, seconds and frames, further absolute time information (AMIN, ASEC, AFRAME), and finally CRC. A code is added.

In the case of the mini disc, the Q data is the track number TNO, index information INDEX, and CR.
A C code is provided, but time information is not added. However, as the index information INDEX, in addition to "01" to "99" indicating that the playback is in progress and "00" indicating that the playback is paused, there is "FF" indicating that the playback is stopped. To do.

Although the detailed operation will be described later, in order to detect that all the songs which are digitally input and recorded are finished, the system controller 11 uses such a Q-value.
Among the data, index information INDEX and elapsed time information (MIN, SEC, FRAME) in the music are used.

Further, in addition to such Q data, the system controller 11 includes the encoder / decoder unit 1
The presence / absence of audio data input to No. 4 is detected, and this is used to detect the end of the supplied music.

In FIG. 1, reference numeral 19 indicates an operation input section provided with keys used for user operation, and 20 indicates a display section constituted by a liquid crystal display, for example. The operation input unit 19 is provided with a record key, a play key, a stop key, an AMS key, a search key, etc. so that the user can operate them.

Reference numeral 21 is a RAM (hereinafter referred to as TOC memory) for holding TOC information in the magneto-optical disk 1. At the time when the magneto-optical disk 1 is loaded or immediately before the recording or reproducing operation, the system controller 11
By driving the spindle motor 2 and the optical head 3, the TOC set on the innermost side of the magneto-optical disk 1, for example.
Extract area data. 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 the system controller 11 controls the recording / reproducing operation for the magneto-optical disk 1 thereafter. TOC information will be used.

In particular, in such a recordable disc medium, management data (user TOC data) for discriminating the recordable area and the recorded area is recorded, and this management data is the recording of the data. By rewriting the contents in response to erasing or erasing, recording can always be executed from a predetermined recordable area.

The processing of the system controller 11 for the recording stop control in the embodiment having such a configuration will be described with reference to the flowchart of FIG.

For the sake of explanation, in the recording / reproducing apparatus,
It is assumed that a compact disk player or a mini disk player exists as a source for supplying digital audio data to be recorded on the magneto-optical disk 1, and an analog audio signal is supplied from another source. Although DAT or the like can be considered as the digital signal source, the description thereof will be omitted when DAT is the source because the processing is similar to that of the compact disc.

When recording, first the system controller 1
Reference numeral 1 determines whether the audio signal input for recording on the magneto-optical disk 1 is digital data or analog signal. That is, it is determined which of the terminals 17a and 17b the voice data is input.

Although a detailed description is omitted for the case of analog input, in this case as well, in order to automate the stop of recording, since there is no control data such as a subcode in the analog audio signal, there is no sound during recording. Detect the part,
For example, when the silent portion continues for a predetermined time or more, it is determined that the supply of the audio signal from the source device is completed and the recording is stopped.

In case of digital input, the system controller 11 of the present embodiment carries out the processing of FIG. 3 below.

First, the system controller 11 shifts from step SP1 to step SP2 to detect the category information from the C-bit data transmitted together with the audio data, and determines what the recording medium as the source is, that is, a compact disc or a mini disc. Is determined.

If it is a compact disc, the system controller 11 proceeds to step SP3, and if it is a mini disc, step SP10.
, And wait for each recording start operation.

Subsequently, when the compact disc is the source, the system controller 11 moves to step SP4 when the user starts the recording operation from the operation unit 19 in step SP3, and the supplied digital data is in the end state. To start monitoring.

That is, in step SP4, the system controller 11 first detects the elapsed time information (MIN, SEC) of the music in the Q data, and monitors the change in this elapsed time information. Here, when the change of the elapsed time information is no longer detected (in this case, the reproduction on the compact disc side is completed), the system controller 11 proceeds to step SP4 and determines whether or not the audio data is actually supplied. Determine.

When the elapsed time information does not change and there is no audio data, the system controller 11 can almost certainly detect that the compact disc player is in the reproduction end state. In this state, the system controller 11
Immediately without stopping recording, the process moves to step SP6, waits n seconds (for example, about 10 seconds), and confirms that there is no change in elapsed time information and that there is no voice data during the waiting. By setting the standby time in this way, even if there is no change in the elapsed time information due to an operation such as a track access on the compact disc player side, and there is no audio data, it is regarded as the reproduction end. It is possible to prevent erroneous determination.

When it is confirmed that there is no change in the elapsed time information and that there is no audio data during the waiting of n seconds, the system controller 11 judges that the reproduction of the compact disc player is completed, and the recording / reproduction is performed. Move to the recording operation stop process of the device.

That is, the system controller 11 moves to step SP7 and sets the time point (recording time position) obtained by subtracting (n-α) from the time point when it is judged that the reproduction of the compact disc player is completed, to the recording end time position. To do. That is, the system controller 11 writes the track address at the position obtained by subtracting (n-α) from the time position at which the reproduction is determined to be ended, as the end address of the recorded music in the user TOC. Here, α is set to, for example, about 1 second, and therefore, a position with a margin of about 1 second from the position where there is no change in elapsed time information and the existence of voice data is the recording end position.

Subsequently, the system controller 11 proceeds to step SP18 and after actually stopping the recording operation,
The processing procedure is completed by moving to step SP9.

By such processing, in the recording / reproducing apparatus, even when the magneto-optical disk 1 still has a sufficient recordable capacity, the recording / reproducing apparatus automatically performs the reproduction when the compact disk player, which is the source device, stops reproducing. The recording operation is ended intentionally, which can prevent useless recording of a silent state.

Next, when the source is a mini disk,
The system controller 11 detects the recording start point in step SP10, and monitors the index information INDEX in the Q data in subsequent step SP11.

As described above, in the case of the mini disc, the index information is any of INDEX = "01" to "99" during reproduction, and INDEX = "00" during pause.
INDEX = "FF" while playback is stopped. Therefore, the system controller 11 can detect the reproduction stop by monitoring the state where INDEX = “FF”.

That is, the system controller 11 first monitors in step SP11 whether INDEX = "01" to "99", and otherwise, in step SP12.
Then, it is monitored whether INDEX = "00". INDEX =
When it is "00", that is, when the source side is in the pause state, the system controller 11 executes the step SP1.
Moving to 3, the recording operation of the recording / reproducing apparatus is temporarily stopped in accordance with this. The system controller 11 then returns to step SP11, and INDEX = "01" to "9".
9 ”, step SP14, step SP
If the recording / reproducing apparatus is currently paused, the processing of 15 is sequentially executed, and the recording / reproducing apparatus is released and the recording operation starts again.

Note that the recording can be paused corresponding to such a source device as a matter of course when the source is a compact disc, and in that case, the above step SP.
As the process before 4, the index information detection process may be performed and the same process may be performed. Index information is "0
When it is not 1 "to" 99 "or" 00 ", the system controller 11 proceeds from step SP11 to step SP16.
Then, it is determined whether or not INDEX = “FF” here. If INDEX = “FF”, the reproduction of the source mini-disc has ended, so that the system controller 11 stops the recording at that time on the mini-disc (magneto-optical disc 1) of the recording / reproducing apparatus. It is the time when In this case, the recording end time position is
INDEX = "FF" is detected.

However, in order to accurately detect the end of reproduction,
After the detection of INDEX = “FF”, the standby process may be performed as in the above step F105. In this case, the recording end time position is a time position (n-α) time before the standby end time.

By such processing, the recording / reproducing apparatus
As in the case where the above-mentioned source device is a compact disc player, the recording operation is automatically ended when the reproduction of the mini disc player, which is the source device, is stopped, and it is possible to prevent useless recording in a silent state.

Even when a digital disc input source other than a compact disc, a mini disc, and a DAT is considered, control data simultaneously transmitted, or control data transmitted simultaneously depending on the format of control information added to the data. It is only necessary to detect the reproduction stop on the source side by using both the control data and the presence / absence of the audio data, and execute the recording end control.

According to the above configuration, when the music information is recorded from the audio device in the unit of recording medium, the recording can be automatically ended when the reproduction of the audio device is completed, and the entire operation is simplified accordingly. can do.

(2) Second Embodiment By the way, if the performance selected by the user can be automatically recorded for each song, the usability of this type of recording / reproducing apparatus can be improved, which is convenient. Is considered to be.

For this reason, in this embodiment, the system controller 11 executes the processing procedure shown in FIG. 4 to automatically record the music piece by piece.

That is, in the system controller 11, the processing moves from step SP20 to step SP21,
Here, it is determined whether or not the one-music recording operator has been pressed. That is, in this embodiment, the magneto-optical disk device is arranged such that a normal recording operator and an operator for recording one song are arranged on the key 19, and when the operator for recording one song is pressed. Then, the process proceeds to step SP22, and it is determined whether or not the recording operator has been pressed.

When the user operates the side of the compact disc player to find the desired song and then presses the reproducing operator and then the recording operator of the key 19, the system controller 11 is pressed. Then, in step SP23, the signal processing circuit such as the audio compression encoder / decoder 14 and the memory controller 12,
Control data is sent to the servo circuit 9 or the like to switch the entire operation mode to the recording mode.

At this time, in the system controller 11, in the subsequent step SP24, the TOC memory 2
1 is accessed to detect the recordable area designated by the pointer (P-EMPTY), and the start address A of the head part of the recordable area is set based on the detection result.

Subsequently, in the system controller 11, the process proceeds to step SP25, where the control data output from the compact disc player side is started after a lapse of a predetermined period to start the detection of the beginning of the following music. Then, it moves to step SP27.

At this time, the system controller 11 starts monitoring the control data after a lapse of a predetermined period so that the silent period immediately after the start of recording is not erroneously detected as the interval between songs, and thus the succeeding songs are surely performed. It is designed to be able to detect the beginning of.

Here, the system controller 11 monitors the Q data of this control data and detects the index information to judge whether or not it is the head position of the following music. If a negative result is obtained, step SP26 is repeated. On the other hand, when the head of the following music is detected, the process proceeds to the following step SP27.

Here, the system controller 11 detects the sector being recorded at the head position of the following music detected in step SP26, and sets the sector recorded one sector before this sector as the end sector B.

As a result, the system controller 11
In the TOC memory 2, starting from the start address A, setting the link pointer as necessary to sequentially specify the parts, and setting the last sector to the end sector B.
Update 1.

When the start address and the end address are set in this way, the system controller 11 then proceeds to step SP28 and controls the recording operation to stop. Then, at step SP29, the magneto-optical disk 1 is started.
By rewriting the lead-in area of the above, the UTOC of the magneto-optical disk 1 is updated with the contents of the TOC data memory 21, and this processing procedure is ended in the subsequent step SP30.

According to the configuration of FIG. 4, the recording operation is stopped and controlled based on the control data output from the digital audio device, so that the user does not have to stop the recording operation after confirming the end of each song. Can be automatically recorded in units of one song, and the usability of the recording / reproducing apparatus can be improved accordingly.

(3) Third Embodiment In this embodiment, the end of a song is detected by detecting the signal level of audio information instead of the control data output from the digital audio device. As a result, the audio signal is recorded in units of one piece of music and further in units of the recording medium on the music source side.

That is, as shown in FIG. 5, in the system controller 11, when recording is started, the signal level of the audio data is sequentially detected to detect the time t1 when the signal level of the audio signal falls to 0 level, When this signal level is kept at 0 level for a predetermined period T1 from this time point t1, this time point t1 is judged to be the end position of the performance selected by the user.

As a result, in the system controller 11, the time point t2 when a predetermined period T2 has elapsed from this time point t1 is set as the end address of this performance and the UTOC is set.
To update.

Thus, the length of the period T1 can be selected to detect the interval between songs and the end of the recording medium in the case of recording in units of one song and in the case of recording in units of recording media. As a result, the recording process can be automatically executed in the case of recording in units of one song and in the case of recording in units of recording media.

According to the configuration shown in FIG. 5, even if the end of the music is detected by detecting the signal level of the audio signal and the recording operation is stopped based on the detection result, the recording operation is performed in units of one music. A desired performance can be automatically recorded for each recording medium.

(4) Other Embodiments In the above-described embodiments, the case where the present invention is applied to the recording / reproducing apparatus including the magneto-optical disk device has been described, but the present invention is not limited to this. It can also be widely applied to dedicated devices. Further, the invention is not limited to recording devices corresponding to magneto-optical discs, particularly mini-discs, but can be widely applied to recording devices corresponding to various rewritable optical discs and various tape-shaped recording media such as magnetic tapes.

[0122]

As described above, according to the present invention, the digital data supplied from the first recording medium in which a plurality of songs are recorded and the management data for managing the digital data are recorded in the second recording medium. In the recording apparatus for recording, a recording mode selecting unit for selecting a mode for recording only a desired one of a plurality of songs recorded on the first recording medium, and a mode selected by the recording mode selecting unit, , Detecting means for detecting a change from a desired music piece to the next music piece by detecting a signal level of digital data, and a digital signal inputted when the detecting means detects a change from the desired music piece to the next music piece A controller for stopping the recording of the data on the second recording medium and controlling the rewriting process of the management data based on the recording stop position where the recording on the second recording medium is stopped. And the detection means starts detecting the change from the desired song to the next song after a predetermined period has elapsed from the start of recording the desired song on the second recording medium, and immediately after the start of recording. By not detecting the silent period of erroneously as the interval between songs, the recording operation is stopped and controlled based on the management data that manages the digital data, and the user confirms the end of each song and confirms the recording operation. It is possible to automatically record in one song unit without stopping operation, and thus it is possible to realize a recording device that can be significantly improved in usability when recording music information from an audio device.

Further, according to the present invention, in the recording method for recording the digital data supplied from the first recording medium on which a plurality of songs are recorded and the management data for managing the digital data on the second recording medium. A first step of selecting a mode for recording only one desired music piece from a plurality of music pieces recorded on the first recording medium, and detecting a signal level of digital data when the mode is selected. The second step of detecting the change from the desired music to the next music by the method, and when the change from the desired music to the next music is detected, the recording of the input digital data to the second recording medium is performed. A third step is provided for controlling the rewriting process of the management data based on the recording stop position where the recording on the second recording medium is stopped while the recording is stopped on the second recording medium. The detection of the change from the desired song to the next song is started after a lapse of a predetermined period from the start of recording on the recording medium, and the silent period immediately after the start of recording is erroneously detected not as the interval between songs. As a result, the recording operation is stopped and controlled based on the management data that manages the digital data, and the recording is automatically performed for each song without the user having to confirm the end of each song and stop the recording operation. Thus, it is possible to realize a recording method that can significantly improve the usability when recording music information from an audio device.

[Brief description of drawings]

FIG. 1 is a block diagram of a recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of Q data of a compact disc and a mini disc.

FIG. 3 is a flowchart for explaining an automatic recording stop process according to the embodiment.

FIG. 4 is a flowchart for explaining the operation of the second embodiment.

FIG. 5 is a signal waveform diagram for explaining the operation of the third embodiment.

FIG. 6 is a diagram for explaining a recording format of main data.

FIG. 7 is a chart showing a case where the main data is audio data.

FIG. 8 is a schematic diagram for explaining a sound group.

FIG. 9 is a diagram for explaining a UTOC of sector 0.

FIG. 10 is a schematic diagram for explaining a start address and an end address.

FIG. 11 is a schematic diagram used for explaining parts.

FIG. 12 is a diagram for explaining a UTOC of sector 1.

FIG. 13 is a diagram for explaining a UTOC of sector 2.

FIG. 14 is a diagram for explaining a UTOC of sector 4.

[Explanation of symbols]

1 ... Magneto-optical disk, 3 ... Optical head, 6 ... Magnetic head, 8, 14 ... Encoding / decoding section, 11 ...
... system controller, 12 ... memory controller, 13 ... buffer RAM, 21 ... TOC memory.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-147485 (JP, A) JP-A-4-301261 (JP, A) JP-A-4-263165 (JP, A) Actual development Sho-62- 51587 (JP, U) European patent application publication 526925 (EP, A 1) (58) Fields investigated (Int.Cl. ⁷ , DB name) G11B 20/10 G11B 27/00

Claims (4)

(57) [Claims] 1. A recording apparatus for recording, on a second recording medium, digital data supplied from a first recording medium on which a plurality of pieces of music are recorded and management data for managing the digital data. A recording mode selecting means for selecting a mode for recording only one desired music piece from the plurality of music pieces recorded on a recording medium; and a signal of the digital data when the recording mode selecting means selects the mode. Detect level
By detecting the change from the desired song to the next song, and when the detector detects the change from the desired song to the next song, the second part of the input digital data is detected. And a control means for controlling the rewriting process of the management data on the basis of the recording stop position at which the recording on the second recording medium is stopped, By starting the detection of the change from the desired song to the next song after a predetermined period has elapsed since the recording of the desired song on the second recording medium was started, the silent period immediately after the start of recording is mistaken. A recording device characterized in that it is not detected as a space between songs. 2. The recording apparatus according to claim 1, wherein the rewriting process of the management data records a recording end position. 3. A recording method for recording, on a second recording medium, digital data supplied from a first recording medium on which a plurality of music pieces are recorded and management data for managing the digital data. A first step for selecting a mode for recording only one desired song from the plurality of songs recorded on the recording medium, and the digital data if the mode is selected.
The second step for detecting the change from the desired song to the next song by detecting the signal level of the desired song, and the input digital signal when the change from the desired song to the next song is detected. A third step of stopping the recording of the data on the second recording medium and controlling the rewriting process of the management data based on the recording stop position where the recording on the second recording medium is stopped, In the second step, the recording is started by starting the detection of the change from the desired song to the next song after a predetermined period has elapsed since the recording of the desired song on the second recording medium was started. A recording method characterized in that the silent period immediately after the start is erroneously detected so as not to be detected as a music interval. 4. The recording method according to claim 4, wherein in the third step, the recording end position is recorded in the management data rewriting process.