JP2000235773A - Reproducing and processing method for disk reproducing device and disk reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a device reproducing the display of data and the sound of voices quickly without delaying both of them by resuming a storing processing in an idle time in the read-out of musical data and reading out remaining track-related data and storing the data and reproducingly outputting corresponding track-related data from among stored track-related data while reproducingly outputting the musical data. SOLUTION: When a disk 101 is inserted in this reproducing device, a system control part 120 reads out track-related data and stores them and when it receives a track reproducing instruction during the executing of a storing processing, the part 120 interrupts the storing processing by storing the track-related data. The part 120 reads out the musical data of a track whose reproducing is instructed from the disk 101 and stores them in a memory means and it reproducingly output them and also it reproducingly outputs corresponding track-related data which are prerecorded and it reads out remaining track-related data by resuming the storing processing in the idle time in the readout of the musical data and stores them. Thus, this reproducing device reproducingly outputs corresponding track-related data while reproducingly outputting the musical data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing method for a disk reproducing apparatus and a disk reproducing apparatus.

[0002]

2. Description of the Related Art Conventional disk reproducing apparatuses include, for example,
There is a mini-disc system for reproducing music using a mini-disc as a small optical disc. The configuration of the mini disk system is described in Nikkei Electronics Magazine No. No. 535, 1991.9.2, pages 127 to 1
Those listed on page 41 are generally known.

Further, there has been proposed a mini disc system to which a function capable of recording and reproducing not only music but also still images and text data as track-related data associated with music has been added. Here, as a specific example of a conventional disc reproducing apparatus, a mini disc system that reproduces and outputs music data (audio data) and track-related data associated with the music data will be described.

[0004] A conventional mini-disc system is configured as shown in FIG. The disk 101 is a magneto-optical disk or an optical disk. This disk 10
Reference numeral 1 denotes music data of a plurality of tracks (songs), track-related data (for example, still image data) associated with the track, TOC (Table Of Contents) data as catalog information indicating their addresses, and the like. It has a reproducible configuration. The TOC data includes TOC data relating to music data and TOC data relating to track-related data.

[0005] Here, for example, on the disc 101, music data of 20 tracks, a total of 20 still image data (one still image data corresponds to each track), and the above-mentioned. TOC (Table Of Contents) data related to music data of 20 tracks,
It is assumed that still image TOC data relating to one still image data is recorded.

[0006] The spindle motor 102
1 is a spindle motor that rotates
05 is driven by the servo unit 106. The signal recorded on the disk 101 is transmitted to the optical pickup 103
And supplied to the reproduction amplifier 107. The optical pickup 103 is driven by a servo unit 106 via a motor driver 105. The position of the optical pickup 103 on the disk is controlled by a traverse motor 104. Traverse motor 104
Are driven by a servo unit 106 via a motor driver 105.

[0007] The reproduction amplifier 107 includes the optical pickup 10.
The signal reproduced in step 3 is subjected to current-voltage conversion, waveform equalization and supply to the signal demodulation unit 108. Also, the playback amplifier 1
07 is the ADIP reproduced by the optical pickup 103
(Address Implement Groove) The signal is subjected to current-voltage conversion and supplied to the signal demodulation unit 108. The method of separating the reproduction signal from the optical pickup 103 from the ADIP signal is described in Nikkei Electronics No. 53
5 on the same page. Also, the reproduction amplifier 107
Generates a servo signal after current-to-voltage conversion of the signal reproduced by the optical pickup 103,
6

[0008] The signal demodulation unit 108 includes a system control unit 11
3 receives a demodulation instruction, extracts a clock from the reproduction signal supplied from the reproduction amplifier 107, detects data based on the extracted clock, and performs EFM (8-14 modulation).
Demodulate the modulated data. Clock extraction is PLL
(Phase Locked Loop) circuit. After that, the signal demodulation unit 108 detects the frame synchronization signal, performs error correction using the error correction code included in the demodulated data, and sends the corrected data to the shockproof memory 109. Further, the signal demodulation unit 108 outputs a frame clock (about 7.35 kHz) detected at the time of demodulation.
z) is supplied to the servo unit 106. The frame clock is a clock having the same frequency as the reproduced frame, and is generated by the signal demodulation unit 108 based on the frame synchronization signal. Also, the signal demodulation unit 108
1 is demodulated, a bit clock is generated, and supplied to the servo unit 106.
The address signal recorded in the DIP is detected and the ADI
The P address data ADIPAD is transmitted to the system control unit 113.
To send to.

The shockproof memory 109 is a memory for storing the corrected music data output from the signal demodulation unit 108. TOC memory 11 as inventory information memory
Reference numeral 5 denotes list information (list information of music data) indicating a set of a track (song) read out by the signal demodulation unit 108 and recorded on the disk and a start address of the track.
Is stored in the memory.

A still picture TOC memory 116 as a track-related data list information memory includes a system control unit 113.
The still image TOC data on the disk read according to the instruction is stored. The still image TOC data is list information (a list of still image data information) indicating a set of data of the recording position of the still image data associated with the track on the disc and the timing of the display of the associated track. ). The still image TOC memory 116 stores all the still image data (2
Still image TOC data for zero still image data) is stored.

More specifically, the still picture TOC memory 11
Reference numeral 6 stores data having contents as shown in FIG. ST
AD (i) is 3-byte data indicating the start address of the still image i on the disk. ENDAD (i) is 3-byte data indicating the end address of the still image i on the disk. TNO (i) is 1-byte data indicating the track number of the track associated with the still image i. OFS (i) indicates the display timing of still image i (offset address from the beginning of the track).
It is byte data. The still image TO on the disc
The C data is recorded in a similar format.

A still image data memory 117 as a track-related data memory stores the still image data on the disk read out by the instruction of the system control unit 113. The still image data memory 117 stores all still image data (20 pieces of still image data) associated with a track based on the still image TOC. The disk detector 118 detects whether the disk 101 has been inserted and sends the detection result to the system controller 113. The disk detection unit 118 is realized by, for example, a combination of an LED and a photodiode.

The still image display section 119 generates a video signal for display on a television receiver or the like based on the still image data sent from the still image data memory 117. Assuming that the disk 101 is an optical disk, the servo unit 106 controls the rotation speed of the disk 101 with a frame clock supplied from the demodulation unit 109 during reproduction of the optical disk. If the disk 101 is a magneto-optical disk, the servo unit 106 uses the bit clock of the ADIP signal generated by the demodulation unit to reproduce or record the magneto-optical disk.
To control the number of revolutions.

Based on the amount of data stored in the shock proof memory 109, the memory control unit 110 determines when the amount of data stored in the shock proof memory 109 reaches the upper limit of the memory capacity.
F is set, and when the data amount becomes equal to or less than (the upper limit of the memory capacity−4 sectors), the memory full flag MF is released. Further, the memory control unit 110 sets the memory empty flag ME when the data amount stored in the shock proof memory 109 reaches 0, and cancels the memory empty flag ME when the data amount exceeds 4 sectors. .

The memory control unit 110 also operates the TOC memory 1 based on an instruction from the system control unit 113.
15 and the still image TOC memory 117 are controlled. The system control unit 113 includes the memory control unit 1
10, a servo unit 106, a signal demodulation unit 108, a memory control unit 110, and a voice expansion unit 111 based on the memory full flag MF and the memory empty flag ME supplied from
And control.

The audio decompression unit 111 includes a system control unit 11
3 instructs the reproduction mode, reads data from the shock proof memory 109 at a constant rate, and expands the compressed music data. As a result, 16-bit data for two channels is output at a rate of 44.1 kHz for each channel. This data is output as audio output signals for two channels via a DA converter (digital-analog converter) 112.

The operation input unit 114 is used by the user to input instructions such as starting reproduction and skipping to a specific track, and sends these instructions to the system control unit 113. Here, the operation of the system control unit 113 of the mini disk system will be specifically described with reference to FIG.

In the process 300 of the system control unit 113,
When the disk detection signal from the disk detection unit 118 is monitored to detect a change from the absence of the disk to the presence state, the process branches to step 301, and otherwise the process 300 is executed again. In a process 301 of the system control unit 113, the servo unit 106, the signal demodulation unit 108, and the memory control unit 110 are controlled so that the TOC
The data and the still image TOC are read and stored in the TOC memory 115 and the still image TOC memory 116, respectively.

In the process 302 of the system control unit 113,
Based on the contents of the still image TOC memory 116, the servo unit 106, the signal demodulation unit 108, and the memory control unit 110 are controlled to read still image data from the disk 101 into the still image data memory 117. In the process 303 of the system control unit 113, based on the contents of the still image TOC memory 116, the process branches to the process 304 if all the 20 still image data have been fetched, otherwise to the process 302. Branch.

In the process 304 of the system control unit 113,
It is checked whether or not there is a playback instruction from the operation input unit 114. If there is a playback instruction, the process branches to step 305.
If there is no reproduction instruction, the process 304 is executed again. In the process 305 of the system control unit 113, when the memory full flag MF output from the memory control unit 110 becomes 1, that is, when the shock proof memory 109 becomes full, the process branches to a process 306; Branch to

In the process 306 of the system control unit 113,
By controlling the audio decompression unit 111, the music data is read from the shock proof memory 109, decompressed, and
Transmission of music data to the DA converter 112 is started. In the process 307 of the system control unit 113, the servo unit 106, the signal demodulation unit 108, and the memory control unit 110 are controlled, and the shock proof memory 1
09, and stops reading the music data.

In the process 308 of the system control unit 113,
When the music data reading has not been started, the servo unit 106, the signal demodulation unit 108, and the memory control unit 110 are controlled to start reading the music data from the disk 101 and store the music data in the shock proof memory 109, When the reading of the music data has been started, the reading process of the music data is continued.

In the process 309 of the system control unit 113,
The difference between the start address of the currently reproduced track stored in the TOC memory 115 and the address of the music data currently being reproduced is stored in the still image TOC memory.
The offset address OFS of the OC data is compared to determine whether or not there is a still image to be displayed at the position currently being reproduced. If there is a still image to be displayed, the process branches to step 310; Indicates a process that branches to process 311.

In the process 310 of the system control unit 113,
The still image data is read from the still image data memory 117 and transferred to the still image display unit 119 to update the still image. In the process 311 of the system control unit 113, it is checked whether or not an instruction to stop the reproduction has been issued from the operation input unit 114. If the instruction to stop the reproduction has been issued, the process branches to a process 312; otherwise, the process branches to a process 305. .

In processing 312 of the system control unit 113,
By controlling the audio decompression unit 111, reading of music data from the shock proof memory 109 is stopped, and transmission of music data to the DA converter 112 is stopped. Next, the shock proof memory 10 by the system control unit 113 is used.
The control of No. 9 will be described in more detail. This is shown in FIG.
The processing corresponds to the processing 305 to the processing 311 in the flowchart shown in FIG.

The operation of loading music data into the shock proof memory 109 in the conventional mini-disc system is executed at the timing shown in FIG. As shown in FIG. 7, MS indicates the music data accumulation state of the shock proof memory 109, and the full on the vertical axis indicates the state where the shock proof memory 109 is full.
M) indicates that the free space of the shock proof memory 109 is M
(M = 4) indicates a state of a sector, and (empty + N) indicates a state in which data of N (N = 4) sectors is stored in the shock proof memory 109. Empty indicates that the shock proof memory 109 is empty.

MF is a memory full flag sent by the memory control unit 110. The memory control unit 110 sets a memory full flag MF when the amount of data stored in the shock proof memory 109 is full, and sets a memory when the free space of the shock proof memory 109 becomes M (M = 4) sectors. The full flag MF is cleared. The horizontal axis indicates the passage of time.

When the reproduction is instructed by the operation input unit 114, the reproduction is started at a constant rate X from the empty state of the shock proof memory 109 at the time A, and the shock proof memory 109 becomes full at the time B. When the memory full flag MF is turned on at time B, the system control unit 113 sends a signal from the signal demodulation unit 108 to the shockproof memory 1.
Writing of the corrected data to 09 is prohibited. That is, the flag DEMAEN indicating signal demodulation and the data transfer command SPMWEN to the shock proof memory 109 are turned off.

At time B, the system control unit 113 prohibits the writing of the corrected data from the signal demodulation unit 108 to the shockproof memory 109, and then the servo unit 106
To instruct a track jump to the next sector. Normally, access to the next sector of the shockproof memory 109 sector is instructed by time B. When the access is completed, the tracking signal TRON supplied from the servo unit 106 to the system control unit 113 turns ON.

Thereafter, data is not written into the shock proof memory 109 until time C. The audio expansion unit 111 reads data from the shock proof memory 109 at a rate of X / 5. Next, at time C, when the data amount of the shock proof memory 109 becomes (full-M), the system control unit 113 sends the signal demodulation flag DE.
Turn on MAEN.

Next, the system control unit 113 controls the ADIP address ADIPAD sent from the signal demodulation unit 108.
Is the address indicating the sector immediately before the sector to be captured next, and then at time D, the signal demodulation unit 10
8 issues a data transfer command SPMWEN to instruct the data transfer to the shockproof memory 109. Next, when the memory full flag MF is turned on at time E, the writing of the corrected data from the signal demodulation unit 108 to the shock proof memory 109 is prohibited. Thereafter, the system control unit 113 repeats the same processing as that from time B to time E.

During the above processing, the system control unit 113
The offset address in the track shown in the still image TOC memory 116 is compared with the offset address of the music data being reproduced, and when the address to be displayed is reached, the contents of the still image data memory 117 are displayed on the still image display section 119. Transfer and update the still image. By performing the above-described control, when an instruction to reproduce a new track is issued from the operation input unit 114, first, still image data corresponding to a desired track is read and displayed, and then audio is reproduced. I have. Furthermore, the shockproof memory 109 has
Normally (full-M) or more corrected data is stored, and even if demodulation cannot be performed due to vibration or the like, voice expansion processing can be continued using the corrected data in the shock proof memory 109. High system is realized.

[0033]

However, in the conventional disk reproducing apparatus, it is necessary to read all track-related data (for example, still image data) from the disk after the disk is inserted. If start is instructed, there is a problem that playback cannot be performed until all the track-related data is read from the disk, and the user will have to wait a long time until all the track-related data is read. There is a problem of giving a sense of incongruity.

Conversely, if it is desired to read the track-related data as required, it is necessary to access another area of the disk for reading the track-related data before reading the music data. There is a problem that the sound reproduction is delayed. The present invention is directed to a disk reproducing apparatus which is excellent in operability because it promptly reproduces both the display of the track-related data and the pronunciation of the sound without delay even if a reproduction instruction is received during the reading of the track-related data after the insertion of the disk. An object of the present invention is to provide a reproduction processing method and a disk reproduction device.

[0035]

According to a playback processing method of a disk playback apparatus of the present invention, when a disk is inserted, a storage process for reading track-related data from the disk and storing the data in a memory means is started. Receiving a track reproduction instruction during the execution of the above, the storage processing is interrupted by storing at least the track-related data of the track whose reproduction has been instructed, and the music data of the track whose reproduction has been instructed is read out from the disk and the memory is read out. Means for storing and reproducing the corresponding track-related data stored in the storage processing, and restarting the storage processing during the idle time for reading the music data, and resuming the remaining track-related data. Is read and stored, and while the music data is reproduced and output, the stored track-related data is read out. The corresponding track associated data from the data is intended to be reproduced output.

According to the present invention, even if a reproduction instruction is received during the execution of reading of track-related data after insertion of a disc, both display of track-related data and pronunciation of sound are quickly reproduced without delay and excellent in operability. A disk reproducing device can be provided.

[0037]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 of the present invention provides music data of a track instructed to be reproduced from a disc on which music data of a plurality of tracks and track-related data relating to the track are recorded, and of the track. When reading and reproducing and outputting the track-related data, when the disc is inserted, a storage process for reading track-related data from the disc and storing the read data in a memory means is started. Upon receiving the data, at least the track-related data of the track instructed to be reproduced is stored, the storage process is interrupted, and the music data of the track instructed to be reproduced is read out from the disk and stored in the memory means or another memory means. And output the corresponding track stored in the storage process. Data is reproduced and output, the storage process is resumed during the idle time of reading the music data, the remaining track-related data is read and stored, and the music data is reproduced and output from among the stored track-related data. This is a reproduction processing method of a disk reproducing apparatus that reproduces and outputs the corresponding track-related data. Even if a reproduction instruction is received while the track-related data is being read after the disk is inserted, the display of the track-related data and the generation of audio sound are performed. It is possible to provide a disk reproducing apparatus that reproduces quickly without delay and has excellent operability.

According to a second aspect of the present invention, there is provided the music data of a track instructed to be reproduced from a disk on which music data of a plurality of tracks and track-related data relating to the track are recorded, and the track-related data of the track. In a disc reproducing apparatus that reads out and reproduces and outputs the track-related data when the disc is inserted, a storage process for reading and storing track-related data is started, and a track reproduction instruction is received during execution of the storage process. The storage process is interrupted by storing at least the track-related data of the track for which reproduction has been instructed, and the music data of the track for which reproduction has been instructed is read from the disk, stored in memory means, reproduced and output, and The corresponding track-related data that has been stored is reproduced and output, and the music data is output. The storage process is resumed during the idle time of reading data, the remaining track-related data is read and stored, and the corresponding track-related data is reproduced and output from the stored track-related data while reproducing and outputting the music data. A disk playback device provided with a system control unit for controlling the playback processing unit as described above,
It is possible to provide a disk reproducing apparatus which is excellent in operability by quickly reproducing both the display of the track-related data and the pronunciation of the sound without delay even if a reproduction instruction is received during the execution of reading the track-related data after the insertion of the disk. it can.

According to a third aspect of the present invention, there is provided a spindle motor for rotating a disk in which music data of a plurality of tracks, track-related data relating to the tracks, and inventory information indicating their addresses are recorded, and A pickup for reproducing a signal from the pickup; a traverse motor for transferring the pickup; a servo unit for controlling the spindle motor, the pickup and the traverse motor; a signal demodulation unit for demodulating a signal reproduced from the pickup; A shock-proof memory for storing music data demodulated by the demodulation unit, a catalog information memory for storing catalog information of the music data demodulated by the signal demodulation unit, and a list of track-related data demodulated by the signal demodulation unit A track-related data inventory information memory for storing information; A track-related data memory for storing the track-related data demodulated by the signal demodulation unit, a track-related data display unit for displaying the track-related data, the shock-proof memory, the track-related data memory, and the catalog information memory. A memory control unit for controlling; a disk detection unit for detecting insertion of the disk; an operation input unit for a user to instruct an operation; and the servo unit and signal demodulation based on input from the operation input unit. A disk playback device including a system control unit that controls a unit and a memory control unit, wherein the system control unit controls the servo unit, the signal demodulation unit, and the memory control unit when the disk is inserted. The catalog information of the music data recorded on the disc and the catalog information of the track-related data are stored in respective catalog information memos. And a track-related data list information memory, start a storage process of reading track-related data from the disk and storing the track-related data in the track-related data memory, and issue a playback command from the operation input unit during execution of the storage process. When received, the track-related data of the track instructed to be reproduced is stored in at least the track-related data memory to interrupt the storage process, and the music data of the track instructed to be reproduced is read from the disk and stored in the shock-proof memory. And output the corresponding track-related data stored in the track-related data memory to the track-related data display section for reproduction and display. The remaining track related data is read out and the track related data is read. This is a disk reproducing apparatus configured to store the data in a continuous data memory.

According to a fourth aspect of the present invention, the music data stored in the shock-proof memory is set in such a manner that the music data stored in the shock-proof memory exceeds the free time during which the music data is read out. From when the storage of the music data in the shock proof memory is resumed when the amount of music data stored in the shock proof memory falls below a second value smaller than the first value. The disk reproducing apparatus according to claim 3, wherein the reading of the remaining track-related data is performed without sacrificing the fetching of music data.
The remaining track-related data can be read in the music data read idle time, and the idle time can be used effectively.

According to a fifth aspect of the present invention, there is provided a system for controlling the system control unit to display the track-related data memory in order from the track-related data closest to the head of the track based on the contents of the track-related data inventory information memory. 5. The disk reproducing apparatus according to claim 3, wherein the servo unit, the signal demodulation unit, and the memory control unit are controlled so as to store the data in a first track of a track having a high priority. By fetching the related data first and immediately reading the track related data immediately after the instruction to reproduce the track, the possibility of delaying the pronunciation of the sound can be reduced.

According to a sixth aspect of the present invention, the system control unit determines that track-related data to be displayed at a predetermined timing during audio reproduction based on the contents of the track-related data inventory information memory. If the data is read into the data memory, the track-related data to be displayed is sent to the track-related data display section for display.
5. The disc reproducing apparatus according to claim 3, wherein when the track-related data to be displayed does not exist in the track-related data memory, the currently displayed track-related data is continuously displayed. For track-related data that should be displayed in the middle of a track, if the track-related data is not read, skip the track-related data. The specification that only the first track-related data of a track is fetched and displayed can be realized.

Hereinafter, a reproduction processing method of a disk reproducing apparatus and a disk reproducing apparatus according to the present invention will be described based on specific embodiments. (Embodiment) The disk reproducing apparatus according to the embodiment shown in FIG. 1 is different from the conventional example only in that the system control unit 113 of the conventional disk reproducing apparatus shown in FIG. ing.

The system control unit 120 controls the disk 101
Is inserted, a storage process for reading and storing track-related data is started, and when a playback instruction of a track is received during execution of the storage process, at least track-related data of the track for which playback is instructed is stored, and the storage process is performed. Is interrupted, the music data of the track designated to be reproduced is read out from the disk 101, stored in the memory means, reproduced and output, and the corresponding track-related data stored in the storage processing is reproduced and output, and the music data is reproduced. The storage process is resumed during the idle read time to read and store the remaining track-related data, and to reproduce and output the corresponding track-related data from the stored track-related data while reproducing and outputting the music data. Servo unit 106 as a processing unit, signal demodulation unit 108, memory control unit 110 It is configured to control the voice decompression section 111. The system control unit 120 includes, for example,
It is composed of a microprocessor or the like.

Here, the operation of the system control unit 120 will be specifically described with reference to FIG. In the process 300 of the system control unit 120, when the disc detection signal from the disc detection unit 118 is monitored and it is detected that the status has changed from the absence of the disc to the presence of the disc, the process branches to the process 301, and if not, the process 300 is executed again. I do.

In the process 301 of the system control unit 120,
Servo unit 106, signal demodulation unit 108, and memory control unit 11
0 to read the TOC data and the still image TOC from the disk 101,
Is stored in the still image TOC memory 116. This processing 30
When 1 is completed, a storage process for reading and storing all the still image data (20 pieces of still image data) in the still image data memory 117 is started.

In the process 320 of the system control unit 120,
It is checked whether or not there is a reproduction instruction from the operation input unit 114. If there is a reproduction instruction, the process branches to step 321.
If there is no reproduction instruction, the process 302 is executed.
In the process 302 of the system control unit 120, the still image TOC
The servo unit 106, the signal demodulation unit 108, and the memory control unit 110 are controlled based on the contents of the memory 116, and the still image data from the disk 101 is stored in the still image data memory 1.
Read in 17. For example, the capacity of one still image data is usually about 64 Kbytes, and reading 32 sectors means that one still image data is read.

At this time, by referring to the offset address OFS of the still image TOC stored in the still image TOC memory 116, the still image data having the smaller offset address is sequentially read and stored in the still image data memory 117.
In this way, the display timing is set such that the still image memory 11
7 will be stored.

In the process 303 of the system control unit 120,
Still image TOC memory 116 and still image data memory 117
It is checked whether or not all 20 pieces of still image data are fetched into the still image data memory 117 based on the contents of the above. If the data is fetched, the process branches to step 304; I do. In this manner, the above-described storage processing is not interrupted unless a reproduction instruction is input in the processing 320.

Here, during the execution of the above-mentioned storage processing, the processing 3
If it is determined that the reproduction has been instructed in step 20, the process proceeds to step 321. In the process 321 of the system control unit 120, based on the contents of the still image TOC memory 116 and the still image data memory 117, whether the still image data at the head of the track whose reproduction has been instructed has already been taken into the still image data memory 117. It is checked whether or not it has been taken in, and if it has already been taken in, it branches to process 323; otherwise, it branches to process 322.

Whether the still image data at the head of the track has already been taken into the still image data memory 117 is determined by the still image stored in the still image TOC memory 115 corresponding to the track number of the currently reproduced track. It is checked whether or not still image data in which the offset address OFS of the track number TNO of the image TOC is 0 to 31 (corresponding to 0 second to about 2 seconds from the beginning of the track) is stored in the still image data memory 117.

In the process 322 of the system control unit 120,
Still image TOC memory 116 and still image data memory 117
The still image data of the track designated to be reproduced is fetched into the still image data memory 117 based on the content of
Proceed to 3. In the process 323 of the system control unit 120, the memory full flag MF output from the memory control unit 110 is set to 1
, Ie, the shock proof memory 109
Is full, then branch to step 306; otherwise, branch to step 324.

In the process 306 of the system control unit 120,
By controlling the audio decompression unit 111, the music data is read from the shock proof memory 109, decompressed, and
The transmission of the music data to the DA converter 112 is started.
The process 307 of the system control unit 120 includes the servo unit 106
And the signal demodulation unit 108 and the memory control unit 110,
Reading of music data from the disk 101 to the shock proof memory 109 is stopped. However, the transmission of music data from the shock proof memory 109 to the audio decompression unit 111 is continued.

In the process 324 of the system control unit 120,
Based on the contents of the still image TOC memory 116, the servo unit 106, the signal demodulation unit 108, and the memory control unit 110 are controlled to stop reading still image data from the disk 101 into the still image data memory 117. System control unit 1
In the process 308 of step 20, when the reading of the music data has not started, the servo unit 106, the signal demodulating unit 108 and the memory control unit 110 are controlled to start reading the music data from the disk 101 and to store the shock proof memory. When the music data reading has not started, the music data reading process is continued.

In the process 325 of the system control unit 120,
Based on the contents of the still image TOC memory 116 and the still image data memory, it is checked whether or not all the 20 still image data have been taken into the still image data memory 117. If so, the process branches to step 309. Otherwise, the process 326 is executed. System control unit 120
In the process 326, the servo unit 106, the signal demodulation unit 108, and the memory control unit 110 are controlled based on the contents of the still image TOC memory 116, and the above-described storage process is restarted to read the remaining still image data from the disk 101. Is read into the still image data memory 117. The remaining still image data is read from the disk 101 in the shockproof memory 1.
This is executed during the time when the reading of the music data into the music data 09 is stopped, that is, during the music data reading idle time.

At this time, with reference to the offset address OFS of the still image TOC stored in the still image TOC memory 116, the still image data with the smaller offset address is read out in order and stored in the still image data memory 117.
In the process 309 of the system control unit 120, the still image TOC
Based on the offset address OFS of the still image TOC data taken into the memory, it is determined whether or not there is a still image to be displayed at the currently sounding position. The process branches to step 327; otherwise, the process branches to step 328.

In the process 327 of the system control unit 120,
It is confirmed whether or not the still image to be displayed specified in the process 309 is stored in the still image data memory 117. If it is stored, the process branches to a process 310; otherwise, the process branches to a process 328. Processing 31 of system control unit 120
At 0, the still image data is read from the still image data memory 117 and transferred to the still image display unit 119 to update the still image.

In the process 328 of the system control unit 120,
It is checked whether or not an instruction to stop reproduction has been issued from the operation input unit 114.
The process branches to processing 329 otherwise. In the process 329 of the system control unit 120, it is determined whether or not the track that emits sound has changed to a new track. If the track has changed to a new track, the process branches to process 321; otherwise, the process branches to process 323. I do.

In the process 312 of the system control unit 120,
By controlling the audio decompression unit 111, reading of music data from the shock proof memory 109 is stopped, and transmission of music data to the DA converter 112 is stopped. Next, capture of still image data and control of the shockproof memory 109 by the system control unit 120 will be described in further detail.

The operation of loading music data into the shockproof memory 109 and the operation of loading still image data from the disk 101 into the still image data memory 117 in the mini disk system of this embodiment are executed at the timing shown in FIG. Have been. This corresponds to steps 320 to 329 of the flowchart shown in FIG.

MS, MF, TRON, DEM shown in FIG.
AEN and SPMWEN are the same as those described in the conventional example shown in FIG. DS
IWE indicates a process of taking still image data on the disk into the still image data memory 117. When DSIWE = 1, still image data is captured. In the processing 301 of the system control unit 120, the reading of the TOC data and the still image TOC data is completed.
If the reproduction instruction has not been received from 14, the processing 3
At 02, the still image data on the disk 101 is accessed, and a storage process for fetching and storing the still image data in the still image data memory 117 from time L is started.

When the system control unit 120 receives a playback instruction from the operation input unit 114 at time A, the still image data to be displayed at the beginning of the track for which the playback instruction has been issued in process 321 is already stored in the still image data memory 117. After confirming that the data is stored, the flow branches to step 323, where the memory full flag MF of the shock proof memory 109 is checked (in this case, MS is "0"). After confirming that the proof memory 109 is not full, the process branches to processing 324, and the time M (=
In A), the process of terminating the reading of the still image data in process 324 is executed, that is, the above-mentioned storage process is interrupted.

Next, the process 325 of the system control unit 120
Then, it is confirmed that the reading of the still image data has not been completed, and the presence or absence of the still image to be displayed in the process 309 is confirmed.
At step 327, it is confirmed that the still image data corresponding to the head of the track is stored in the still image data memory 117, and at step 310, the still image is displayed. Next, in the process 323 of the system control unit 120, the memory full flag MF of the shock proof memory 109 is checked again (here, MS is “1”), that is, stored in the shock proof memory 109. Make sure that the music data is full, and at time N,
Still image data memory 117 for still image data in process 326
Fetching, that is, restarting the above-described storage processing.

At time C, the system control unit 120 confirms the memory full flag MF of the shock proof memory 109 in the process 323 (MS is set to 0), that is, the system control unit 120 at step C323.
After confirming that the music data stored in the shock proof memory 109 is equal to or less than (full-M),
The process branches to process 324, and the process of terminating the reading of the still image data in process 324 is executed at time M, that is, the above-described storage process is interrupted.

Hereinafter, the processing from time P to time T is a repetition of the processing from time N to time O. When the system control unit 120 determines in step 325 that all the 20 still image data have been stored in the still image data memory 117, the process proceeds to step 326.
Is skipped and still image data is not imported.

With this configuration, the disk 101
When the user receives a reproduction instruction during the execution of the storage processing for storing the 20 still image data that is started immediately after the insertion of the track, at least the still image data of the track whose reproduction is instructed is stored and The storage process is interrupted, the music data of the track instructed to be reproduced is immediately read out,
This music data and the corresponding still image data can be reproduced and output without waiting for the completion of the storage processing, and both the pronunciation of the music data and the display of the still image data can be quickly reproduced without delay. Thus, it is possible to obtain a disk reproducing apparatus excellent in operability without waiting for a long time or feeling uncomfortable for the user. Further, the reading of the remaining still image data can be executed during the idle time for reading the music data without sacrificing the fetching of the music data, and the idle time can be used effectively.

Note that, as shown in FIG.
The case where the reading of the still image data is not completed has been described. However, if the timing of the reproduction instruction from the operation input unit 114 is late, the reading of the 20 still image data is already completed at the time A. Therefore, there is no need to use the idle time for taking in music data to read still image data.

Further, the system control unit 120 executes the processing 32
In step 1, if the still image data at the head of the track is not in the still image data memory 117, the still image is fetched and then the music data is read. In step 327, the still image data to be displayed is If not, the display data is not updated, so it is displayed at the beginning of the track, and the still image representing that track is read even if the sound is delayed. For still images to be displayed in the middle, skip the still image data if it is not loaded.Basically, only the first still image on the track is captured and displayed, and the pronunciation of the music data is reproduced. It is possible to realize a specification that gives priority to quickening.

In this embodiment, the track-related data has been specifically described as still picture data. However, the present invention is not limited to still picture data. Has the same effect. In this embodiment, a shock-proof memory 10 for storing music data
9 and a still image data memory 117 for storing still image data as another memory means different from the shock proof memory 109. The shock proof memory 109 and the still image data memory 117 are the same memory means. The same effect is obtained even when

[0070]

As described above, according to the reproduction processing method of the disk reproducing apparatus according to the first aspect of the present invention, when a disk is inserted, track related data is read from the disk and stored in the memory means. When a process is started and a playback instruction of a track is received during execution of the storage process, at least track-related data of the track whose playback is instructed is stored, the storage process is interrupted, and music data of the track whose playback is instructed is Is read from the disk, stored in the memory means or another memory means, reproduced and output, and the corresponding track-related data stored in the storage processing is reproduced and output, and the storage processing is performed during the idle time for reading the music data. Restart and read and store the remaining track-related data, and play back and output the music data. By the reproduction output corresponding track associated data from the track-related data,
When a reproduction instruction is received from the user during execution of the storage processing for storing all the still image data that is started immediately after the insertion of the disc, at least the still image data of the track for which the reproduction is instructed is stored and the storage is performed. The processing is interrupted, the music data of the track instructed to be reproduced is immediately read out, and the music data and the corresponding still image data can be reproduced and output without waiting for the completion of the storage processing. Both the sounding of the data and the display of the still image data can be quickly reproduced without delay, and the user can be prevented from waiting for a long time or feeling uncomfortable.

According to the disk reproducing apparatus of the second aspect of the present invention, when a disk is inserted, a storage process for reading out and storing track-related data is started. Upon receiving the reproduction instruction, at least the track-related data of the track instructed to be reproduced is stored, the storage process is interrupted, and the music data of the track instructed to be reproduced is read out from the disk, stored in memory means and reproduced and output. At the same time, the corresponding track-related data stored in the storage processing is reproduced and output, the storage processing is resumed during the idle time for reading the music data, and the remaining track-related data is read and stored, and the music data is reproduced and output. While reproducing and outputting the corresponding track-related data from the stored track-related data. By providing the system control unit for controlling the reproduction processing unit, it is possible to realize a process for regeneration of the disk reproducing apparatus of the present invention. According to the disk reproducing apparatus of the third aspect of the present invention, when the disk is inserted, the system control unit controls the servo unit, the signal demodulation unit, and the memory control unit to record the data on the disk. Storing the catalog information of the music data and the catalog information of the track-related data in the respective catalog information memories and the track-related data catalog information memory, and reading the track-related data from the disc and storing the data in the track-related data memory. Starting a process, receiving a playback command from the operation input unit during execution of the storage process, storing at least the track-related data of the track instructed to be played back in the track-related data memory, and interrupting the storage process;
The music data of the track instructed to be reproduced is read from the disc, stored in the shock proof memory, reproduced and output, and the corresponding track-related data stored in the track-related data memory is sent to the track-related data display unit. The storage is resumed during the idle time for reading out the music data, the remaining track-related data is read out and stored in the track-related data memory. After reading the information, the storage of the track-related data from the disc into the track-related data memory is started based on the contents of the track-related data list information. After the reading of the track-related data is completed, the user issues a playback instruction. Music data immediately Read the track-related data from the shock-proof memory and read the track-related data from the track-related data memory to quickly display the track-related data and pronounce the sound. When the reproduction instruction is given, if the track-related data corresponding to the beginning of the desired track has already been stored in the track-related data memory, the reading of the track-related data from the disc is interrupted, and the track-related data is interrupted. Data display and audio playback are performed. If the track-related data corresponding to the beginning of the track for which playback has been instructed has not been captured, the track-related data on the disk is immediately read out. Delay both data display and voice pronunciation It is possible to provide a disk reproducing apparatus having excellent no operability.

According to the disk reproducing apparatus of the fourth aspect of the present invention, the free time for reading out the music data in the disk reproducing apparatus of the third aspect is determined by the time of the music data stored in the shockproof memory. When the amount of the music data stored in the shock proof memory ends when the amount exceeds the first value and the storage of the music data in the shock proof memory ends, a second value smaller than the first value is used. Since the storage of the music data in the shock proof memory is resumed by lowering the value, the remaining track-related data is stored in the music data without sacrificing the import of the music data in order to read the remaining track-related data. Reading can be performed during the read free time, and the free time can be used effectively.

According to the disk reproducing apparatus of the fifth aspect of the present invention, the system control unit in the disk reproducing apparatus of the third or fourth aspect is configured such that the contents of the track-related data list information memory are changed. Based on the configuration, the servo unit, the signal demodulation unit, and the memory control unit are configured to control the servo unit, the signal demodulation unit, and the memory control unit so that the display timing is stored in the track-related data memory in order from the track-related data closest to the beginning of the track. By taking in the track-related data at the beginning of the track first and immediately reading the track-related data immediately after the instruction to play the track,
The possibility that the pronunciation of the sound is delayed can be reduced.

According to the disk reproducing apparatus of the sixth aspect of the present invention, the system control unit in the disk reproducing apparatus of the third or fourth aspect is configured such that the contents of the track-related data list information memory are changed. If the track-related data to be displayed at a predetermined timing during audio playback is read into the track-related data memory, the track-related data to be displayed is sent to the track-related data display unit for display. When the track-related data to be displayed does not exist in the track-related data memory, the currently displayed track-related data is configured to be continuously displayed. , Skip if the track-related data is not loaded, Is to basically give priority to speed up the pronunciation of music data, only the first track-related data of the track, it is possible to realize a specification that display capture.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a disk reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a processing operation of a system control unit according to the embodiment;

FIG. 3 is a timing chart showing an operation of capturing music and still image data according to the embodiment;

FIG. 4 is a block diagram showing a configuration of a conventional disk reproducing apparatus.

FIG. 5 is a diagram showing the contents of a conventional still picture TOC memory.

FIG. 6 is a flowchart showing a processing operation of a conventional system control unit.

FIG. 7 is a timing chart showing a conventional music data capturing operation;

[Explanation of symbols]

 101 Disk 106 Servo unit 108 Signal demodulation unit 109 Shock proof memory 110 Memory control unit 111 Audio expansion unit 115 TOC memory 116 Still image TOC memory 117 Still image data memory 118 Disk detection unit 120 System control unit

Claims (6)

[Claims] When reading music data of a track instructed to be reproduced and track-related data of the track from a disk in which music data of a plurality of tracks and track-related data related to the track are recorded and reproducing and outputting the read data, Is inserted, a track-related data is read from the disk, and a storage process for storing the read data in a memory unit is started. The storage processing is interrupted, and the music data of the track for which the reproduction is instructed is read out from the disk, stored in the memory means or another memory means, reproduced and output, and the corresponding data stored in the storage processing is stored. Reproduce and output track-related data and read the music data A disk for resuming the storage process during the free time, reading and storing the remaining track-related data, and reproducing and outputting the corresponding track-related data from the stored track-related data while reproducing and outputting the music data. A reproduction processing method of the reproduction device. 2. A reproduction processing section reads out music data of a track designated to be reproduced from a disk on which music data of a plurality of tracks and track-related data relating to the track are recorded and a track-related data of the track, and reproduces and outputs the data. In the disc reproducing apparatus, when the disc is inserted, a storage process for reading and storing track-related data is started, and when a track reproduction instruction is received during the execution of the storage process, the track-related data of the track instructed to be reproduced is read. At least storing and interrupting the storage processing, reading out the music data of the track for which the reproduction is instructed from the disk, storing the music data in the memory means, and reproducing and outputting the corresponding track-related data stored in the storage processing. Output and store the music data in the idle time for reading the music data. The processing is resumed, the remaining track-related data is read and stored, and the reproduction processing unit is controlled so as to reproduce and output the corresponding track-related data from the stored track-related data while reproducing and outputting the music data. A disk playback device provided with a system control unit. 3. A spindle motor for rotating a disk on which music data of a plurality of tracks, track-related data relating to the track and inventory information indicating their addresses are recorded, a pickup for reproducing signals from the disk, and the pickup. A traverse motor for transferring a signal, a servo unit for controlling the spindle motor, the pickup, and the traverse motor; a signal demodulation unit for demodulating a signal reproduced from the pickup; and music data demodulated by the signal demodulation unit. Shock proof memory, a catalog information memory for storing catalog information of music data demodulated by the signal demodulation section, and a track-related data catalog information memory for storing catalog information of track-related data demodulated by the signal demodulation section. And the track demodulated by the signal demodulation unit. A track-related data memory for storing related data; a track-related data display unit for displaying the track-related data; a memory control unit for controlling the shock-proof memory, the track-related data memory, and the inventory information memory; A disk detection unit for detecting insertion of an input, an operation input unit for a user to instruct an operation, and controlling the servo unit, the signal demodulation unit, and the memory control unit based on an input from the operation input unit. In a disc reproducing apparatus provided with a system control unit, the system control unit controls the servo unit, the signal demodulation unit, and the memory control unit when the disc is inserted, to thereby control music recorded on the disc. The data inventory information and track-related data inventory information are stored in the respective inventory information memories and track-related data inventory information memories. When a playback command is received from the operation input unit during the execution of the storage process, a playback instruction is issued. Storing the track-related data of the track in at least the track-related data memory, interrupting the storage process, reading the music data of the track whose reproduction is instructed from the disk, storing the music data in the shock-proof memory, and reproducing and outputting the data; The corresponding track-related data stored in the track-related data memory is sent to the track-related data display section for reproduction and display, and the storage process is resumed during the idle time for reading out the music data, and the remaining track-related data is read. Read out and store in the track related data memory. The disk reproducing apparatus. 4. The method according to claim 1, wherein the step of determining whether or not the music data stored in the shock proof memory is completed when the amount of music data stored in the shock proof memory exceeds a first value. 4. The disk reproducing apparatus according to claim 3, wherein the amount of music data stored in the proof memory falls below a second value smaller than the first value until the storage of the music data in the shock proof memory is restarted. 5. A system control unit according to claim 1, wherein said system control unit and said servo unit perform signal demodulation so that display timing is stored in a track-related data memory in order from a track-related data closest to the beginning of a track. 5. The disc reproducing apparatus according to claim 3, wherein the disc reproducing apparatus is configured to control the unit and the memory control unit. 6. When the track-related data to be displayed at a predetermined timing during sound reproduction is read into the track-related data memory based on the contents of the track-related data list information memory, The track-related data to be displayed is sent to the track-related data display section for display. If the track-related data to be displayed does not exist in the track-related data memory, the currently displayed track-related data is continuously displayed. 5. The disc reproducing apparatus according to claim 3, wherein the disc reproducing apparatus is configured to perform the above operation.