JPH0877682A - Reproducing apparatus and recording apparatus - Google Patents

Abstract

PURPOSE: To obtain a recording apparatus which can continuously record without forming an interrupting part over a plurality of recording media, and a reproducing apparatus which can continuously output reproducing signals even when a to-be-reproduced DYY is exchanged. CONSTITUTION: At a reproducing time, while a first disc A is exchanged with a second DYY, data of the disc A transferred at a high rate from a data write/ read part 21 and stored in a memory part 6 are supplied to a recording/ reproducing signal-processing circuit 22 at a low rate. At a recording time, while the first disc A is exchanged with a second disc B, data of a source input continuously from the recording/reproducing signal-processing circuit 22 are accumulated in the memory part 6 at the low-speed rate. When the exchange of discs is complete, data are read out at the high rate from the memory part 6 and written to the disc B.

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 reproducing device capable of recording / reproducing on / from a disc-shaped recording medium.

[0002]

2. Description of the Related Art For example, a CD-DA in which audio data such as music is recorded as a disc-shaped recording medium, or a CD-DA
CD with still image data recorded on DA-
G, LD (Laser Disc) as video software, and the like are known, and a playback device that performs a playback operation of these disks is widely known. Further, in recent years, a video CD or the like in which video data of a moving image is recorded by the MPEG system is also known, and a reproducing device capable of reproducing corresponding to the video CD has been developed. Further, a so-called data rewritable magneto-optical disc is known, and a recording / reproducing apparatus capable of recording or reproducing operation corresponding to the MO disc is also known.
There is also known an optical disc called WO (write once) capable of recording only once, and a recording device corresponding thereto.

Further, in a recording / reproducing apparatus using a magneto-optical disk as a recording medium and a reproducing apparatus using an optical disk such as a CD as a recording medium, data read from the recording medium by the optical head is temporarily stored in the memory, and the data is read from the memory. It is known that data is read at a predetermined timing, and the data is converted into a reproduction signal and output. In a device provided with such a memory, the bit rate at the time of supplying the data read from the optical head to the memory at the time of reproduction is set higher than the bit rate of the data read from the memory, that is, , In this case, the data writing to the memory is executed at a high rate, so that even if the data reading from the memory is always executed, the data read by the optical head is always accumulated in the memory to some extent during the reproducing operation. Has been done. As a result, even if the data reading operation from the recording medium by the optical head is temporarily disabled due to, for example, a track jump caused by disturbance or the like, the reproduced audio or video is continuously output without interruption. It

[0004]

By the way, for example, in the case of audio software and video software such as music by various disc-shaped recording media, if the recordable time for one disc is exceeded, a plurality of discs are recorded. Recording is performed in a divided manner over the disc (or a disc such as an LD that is recorded on both sides is also included). Therefore, when the user plays back such software with a playback device and listens or watches it, for example, when the playback of the currently playing disc is completed, the disc is replaced with the disc to be played next. Alternatively, if the reproducing device is a changer type or has a double-sided reproducing function known in LD players and the like, a tray loaded with a plurality of discs is reproduced so that the next disc (or one side) can be reproduced. It will be moved or the pickup unit will be moved. The audio or video playback must be interrupted during the period when such discs are exchanged, but it is the user's request that the playback output is not interrupted and software is continuously watched. It is preferable to be able to.

Further, for example, in a recording device or the like configured to be able to record on a disc, when the source to be recorded exceeds the recordable time of the disc,
Source recording is performed over a plurality of discs, but if there is only one recording device, the disc is replaced with the next recordable disc when the recording capacity of one disc becomes full. Alternatively, in the case of a changer type recording apparatus, the recording during the period until the next disc is loaded and the recording is executed again is interrupted, and the information cannot be obtained during this period.

[0006]

SUMMARY OF THE INVENTION Therefore, according to the present invention, there is provided a reproducing apparatus capable of continuously outputting a reproduced signal even during a period in which a recording medium to be reproduced is exchanged, and recording over a plurality of recording media. It is an object of the present invention to obtain a recording device capable of continuously recording so that a missing portion of signal content does not occur.

Therefore, the data reading section for reading data from the recording medium, the memory section for holding the reproduction data read by the data reading section, and the reproduction data read from the memory section are output as reproduction signals. And a control unit that controls the operations of the data reading unit and the memory unit. The data transfer rate between the data reading unit and the memory unit within a unit time is determined by the memory unit and the reproduction signal processing unit. In the reproducing device in which the transfer rate of the data within the unit time between sets is set to be higher, the control unit controls the reproduction data from the memory unit after the data reading unit finishes reading the data from the recording medium. By causing the data reading unit to start reading the data of the recording medium to be reproduced next during the period in which the reading operation is continued, reproduction signals from a plurality of recording media are generated. It was be configured to allow continuously output from the raw signal processor.

Further, a recording signal processing section for outputting an input signal as recording data for recording on a recording medium, a memory section for holding the recording data output from the recording signal processing section, and a memory section for reading the recording data. A data writing unit that writes the recorded data to a recording medium, and a control unit that controls the operations of the data writing unit and the memory unit. In a recording device in which the transfer rate is set to be higher than the transfer rate of data within a unit time between the memory section and the recording signal processing section,
The control unit stores the recording data output from the recording signal processing unit in a memory until the writing of the data to the recording medium by the data writing unit is finished and the writing of the data to the next recording medium is started. By continuing the operation of writing to the unit, the data of the input signal can be continuously recorded on a plurality of recording media.

[0009]

According to the above construction, in the reproducing apparatus, after the reading of data from the disk to be reproduced first is completed,
For example, during the period from the completion of the exchange of the disc by the user himself or the changer mechanism until the data can be read from the disc to be played next, the disc which is stored in the memory as the storage means at a higher rate than the previous disc. By supplying the read data to the reproduction signal processing unit at a low speed, the reproduction signal between the two disks can be continuously output without interruption. Also, in the recording device, while writing to the previous disc is completed and the disc is being replaced with the next disc, the source data continuously input from the recording signal processing unit at a low rate is stored in the memory. When it becomes possible to write to the next disk, by writing the data read from the memory at a high speed to the disk,
It becomes possible to continuously record the data of the input signal over a plurality of discs between the preceding disc and the next disc.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A reproducing apparatus and a recording apparatus of the present invention will be described below. Here, a recording / reproducing apparatus constructed so as to be capable of recording / reproducing corresponding to a magneto-optical disk will be described as an embodiment. To do. FIG. 1 is a block diagram schematically showing a main part of the recording / reproducing apparatus of this embodiment. In addition,
Here, the functional circuit units related to the recording signal system and the reproduction signal system are shown, and the functional circuit units such as various servo systems are omitted. In the figure, reference numeral 1 denotes a magneto-optical disk on which data such as audio or video signals is recorded. Reference numeral 2 denotes a disk drive unit for rotationally driving the disk 1, which is composed of, for example, a spindle motor and a servo circuit. In this embodiment, the disk driver section 20 is a portion where the disk 1 is loaded and which is rotationally driven by the disk drive section 2.
It is said. In this embodiment, the disc driver unit 20 may be configured to have a normal loading mechanism in which only one disc is loaded, or a predetermined plurality of discs may be loaded. It may be configured as a so-called disc changer mechanism configured to move a desired and desired disc to a recording / reproducing position where the optical head 3 and the magnetic head 4 are located.

Reference numeral 3 denotes an optical head for irradiating the disk 1 with laser light to read recorded data, which is a relatively low level laser for detecting data from reflected light by the magnetic Kerr effect during reproduction. It is designed to output. However, when recording is performed on the magneto-optical disk, it is configured to provide a high level laser output for heating the recording track to the Curie temperature.

Therefore, the optical head 3 is equipped with a laser diode as a laser output means, an optical system including a deflecting beam splitter, an objective lens and the like, and a detector for detecting reflected light.

Reference numeral 4 denotes a magnetic head for applying a magnetic field modulated by the supplied data to the magneto-optical disk, and is arranged at a position facing the optical head 3 with the disk 1 in between. The entire optical head 3 and the magnetic head 4
Is actually movable in the disk radial direction by a thread mechanism.

Reference numeral 5 is an encoder / decoder section. The encoder / decoder unit 5 functions as a decoder that performs a predetermined demodulation process on the signal read from the disk 1 by the optical head 3 in the reproduction mode and supplies the signal to the memory unit 6, while in the recording mode, the memory unit. The encoder functions as an encoder that modulates the data signal supplied from 6 into a data structure of a predetermined form suitable for recording on the disc 1. In the present embodiment, the optical head 3, the magnetic head 4, and the encoder / decoder unit 5 are used.
Thus, a data writing / reading unit 21 for writing / reading data to / from the disk 1 is configured.

Reference numeral 6 is a memory section as a data storage section for temporarily accumulating read data or data input for writing. For example, in practice, a buffer RAM and a data RAM are stored. The memory controller is configured to generate a pointer for writing / reading in the buffer RAM, perform addressing, and execute writing / reading control. In the case of the present embodiment, the data storage capacity in the memory unit 6 may be set based on the data storage amount required for continuous recording and continuous reproduction described later.

Further, 7 is an A / D converter and 8 is a D / D converter.
Each A converter is shown. The A / D converter 7 converts an analog audio or video signal input as a recording signal into a digital signal and supplies the digital signal to the memory unit 6, and the D / A converter 8 outputs the digital signal supplied from the memory unit 6. Is converted into an analog signal and output as a reproduction signal. For example, in this figure, A /
The D converter 7 and the D / A converter 8 constitute the recording / reproducing signal processing unit 22, but in actuality, a required signal processing circuit unit may be additionally provided.

Here, the data transfer rate between the memory unit 6 and the data writing / reading unit 21 (encoder / decoder 5), the memory unit 6 and the recording / reproducing signal processing unit 22 (A / D).
The data transfer rate between the converter 7 and the D / A converter 8) is higher between the memory unit 6 and the data writing / reading unit 21 than between the memory unit 6 and the recording / reproducing signal processing unit 22. To be. That is, during reproduction, the reproduction data write rate to the memory unit 6 is higher than the read rate from the memory unit 6, and during recording, the record data read rate from the memory unit 6 is higher than the write rate. Will be set.

Reference numeral 9 denotes a system controller composed of a microcomputer or the like, and controls each functional circuit section as shown in the figure. Reference numeral 10 denotes a display unit, which is provided, for example, by being exposed in the housing of the apparatus, and performs various displays under the control of the system controller 9. Further, reference numeral 11 denotes an operation section provided with keys capable of various operations of the apparatus, and in this case, key operations for setting the continuous reproduction mode and the continuous recording mode are possible. Although not shown here, a receiving section may be provided for the system controller 9 so that the remote controller can perform the same operation.

In the recording / reproducing apparatus having the above structure, the reproduction signal in the normal reproduction mode has the following paths. For example, when the disc 1 loaded in the disc driver unit 20 is rotationally driven by the disc driving unit 2 to start the reproducing operation, the data writing / reading unit 21 (in this case, the optical head 3 and the encoder / decoder unit 5). The reproduction data read from the disc 1 by the above is written into the memory section 6 at a predetermined transfer rate which is higher than the reading rate to the recording / reproduction signal processing section 22. The data read / write operation of the data write / read unit 21 and the data write to the memory unit 6 accompanying this are intermittently performed according to the amount of data temporarily stored in the memory unit 6. The reproduction data written in the memory unit 6 is continuously read at a predetermined rate lower than the writing rate and supplied to the D / A converter 8 in the recording / reproduction signal processing unit 22, It is output as an analog reproduction signal. In this way, by outputting the reproduction signal via the memory unit 6, a state in which the reproduction data is always accumulated in the memory unit 6 to some extent, and even when tracking is lost due to disturbance or the like, for example. The operation can be executed without affecting the reproduction output by, for example, accessing the correct tracking position and restarting the data reading while the data accumulation remains without interrupting the reproduction output. That is, the seismic function can be significantly improved.

The recording signal in the normal recording mode in the recording / reproducing apparatus of this embodiment has the following path.
For example, a recording signal such as an audio or video source input as an analog signal is converted into a digital signal through the A / D converter 7 in the recording / reproducing signal processing unit 22, and is stored in the memory unit 6 at a predetermined low rate. Supplied. The memory unit 6 continuously writes the recording data in accordance with the timing of the low speed rate. The recording data written in the memory unit 6 is read at a predetermined high-speed rate and supplied to the encoder / decoder unit 5 of the data writing / reading unit 21. Then, the encoder / decoder unit 5 performs a required modulation process on the recording data input from the memory unit 6 at the above high-speed rate to form a recordable data structure on the disk 1, and then drives the magnetic head 4 on the magnetic head. Supply a signal. At this time, as described above, the laser light of the recording level is output from the optical head 3 under the control of the system controller 9. As a result, a magnetic field is applied to the disk 1 to execute writing. Even in such a recording mode, the read operation from the memory unit 6 and the disc writing by the data writing / reading unit 21 accompanying the read operation according to the current storage amount of the data written in the memory unit 6 are performed. The write operation to 1 is performed intermittently.

In the present embodiment, according to the above description, the memory section 6 provided as an earthquake-proof function is used to continuously reproduce the output of the reproduction signal over a plurality of disks without interruption. And a continuous recording mode capable of continuously recording data on a plurality of discs. As a result, the long-time source recorded over a plurality of discs can be viewed and heard without interruption of audio or video. When it is necessary to record a source for a long time on a plurality of discs, the signal data of the source that is continuously input during disc replacement is used as the memory unit 6.
When the disk replacement is completed, the writing of the data read from the memory unit 6 to the disk is restarted. This makes it possible to continuously record the data of the input source between the end of the previous disc and the beginning of the next disc without any temporal interruption. If, for example, a plurality of discs recorded in the continuous recording mode in this way are reproduced in the continuous reproduction mode, it is possible to obtain audio or video whose output is not interrupted even when the discs are exchanged.

Therefore, the continuous reproduction mode will be described first. It should be noted that, here, for convenience, a case will be described in which the continuous reproduction mode is configured to be capable of continuously reproducing two discs. However, in practice, the number of continuously reproducible discs can be arbitrarily set. .

FIG. 2 is a timing chart showing the operation of the recording / reproducing apparatus of this embodiment in the continuous reproducing mode. In these figures, FIG. 2A shows a disc that is being rotationally driven by the disc drive unit 2. Here, disc A is the first disc that is continuously reproduced, and disc B is the disc that is continuously reproduced. Is the second disc. Further, FIG. 2B shows the data writing / reading unit 2
The timing of reading data from the disk by 1
2C shows the state of the reproduction signal output from the recording / reproduction signal processing unit 22 (in this case, the D / A converter 8 functions), and FIG. 2D shows the storage capacity of the memory unit 6. The amount of data accumulated is shown.

For example, as shown before time t _{6 in} FIG. 2A, when the first disk A is rotationally driven by the disk drive unit 2 and data can be read from the disk A, As shown in the shaded area of FIG. 2 (b),
Data is intermittently read from the disk A according to the amount of data stored in the memory 6. That is, in the memory unit 6, the reading of the held data is continuously executed at a predetermined low rate, but if the data storage amount decreases to a certain predetermined amount as shown at time t _{1 in} FIG. 2B, data is read from the disk A from time t ₁ and written in the memory 6 at a predetermined high speed. Then, for example, by writing this data, the storage amount of the memory 6 is equal to or more than a predetermined amount (in this case, 10
0%) and becomes, the reading of data from the disk A as shown in time point t ₂ is stopped, the state continues until time t ₃ when reduced amount of accumulated data to a predetermined amount. Later,
For example, if there is no external disturbance, etc., with the same timing,
In a period t ₃ ~t ₄ is performed read from the disk A, the read stop in the period t ₄ ~t _5, time period t
₅ ~t becomes the reading is performed in _6, along with this, the amount of data accumulated in the memory unit 6 also varies as shown in Figure 2 (d). Thus, during the period until the time t ₆ when the disk A is rotationally driven, the reading of data from the disk A and the writing to the memory section 6 are executed intermittently at a high speed, while the memory section 6 Since the reading at the low speed is continued in Fig. 2 (c).
As shown in, the reproduction signal output obtained through the recording / reproduction signal processing unit 22 is continuously output.

Then, at the time t ₆ in this figure, the reading of data from the first disc A is completed, and the period from t ₆ to t ₇ shown by the broken line in FIG. Is the period to replace the second disc B with
For example, if the disk driver unit 20 is a so-called changer type, the disk B preloaded in the tray is
Is newly moved to the playback position, and if it is a type that can load only one normal sheet that is not a changer type (hereinafter, this is called a changer type, it is called a manual type) , It is the period during which the user himself / herself replaces the disc. In the case of the latter manual type, for example, when the reading of the first disc A is completed, the disc is automatically unloaded and pulled out, and a display prompting the next second disc is displayed. Is preferred.

During the period from t _{6 to} t ₇ , the reading from the disk becomes impossible and is not executed, but the data reading operation in the memory section 6 is continued from before this period. Therefore, during this period, the process of reading the data stored in the memory unit 6 from the disk A at the time point t ₆ at the low speed rate is continued, so that the data is continuously recorded in the disk A as shown in FIG. 2C. The reproduction signal output of the contents described above continues. Therefore, the data storage amount in the period t ₆ to t ₇ gradually decreases as shown in FIG.

Then, at time t₇ Of the second disc B
When the exchange is completed, the data writing / reading unit 21
The first read operation for disk B is started,
Point t ₉ When the amount of data stored in the memory unit 6 reaches 100%,
It is temporarily stopped. By the way, t in this figure₇ ~ T₉ In the period
At time t₇ Remains as accumulated data even after
The reproduced data of the disc A that is being recorded continues from the memory unit 6.
The contents of the data on disk A are
Time t when all reading is completed₈Up to Figure 2 (c)
The reproduced signal shown is the contents of the disc A. And this
Time t₈ After that, time t₇ Readout will be started later
The reproduction data of the disk B held in the memory section 6 is continuous.
Read out and transferred to the recording / playback signal processing unit 22.
It As a result, the reproduction signal is time t in FIG.
₈ At the end of disc A and the beginning of disc B
Is output continuously without interruption.

After time t ₉ , time t _{13 in} this figure
As described above, at the same timing as that described when the disk A is rotationally driven, data is intermittently read from the disk B in accordance with the amount of data stored in the memory unit 6, and the content of the disk B is reproduced. The signal is output.

As described above, during the period (t _{6 to} t ₇ ) during which the disc is exchanged in the continuous reproduction mode, the reproduction data of the first disc A stored in the memory section 6 is read and output. . For this reason, the actual storable capacity of the memory unit 6 may be arbitrarily set according to the time required to complete the movement of the next disk if it is the changer type, and is the manual type. If so, the time normally required for the user to replace the disk is assumed, and it may be set arbitrarily in accordance with this. However, regardless of whether it is the changer type or the manual type, the data storage amount becomes empty due to the intention of the user or the accident such as some accident that the second disc B is not replaced or the delay is significantly delayed. It is possible that the playback signal will be interrupted, but in such a case, the continuous playback mode is automatically canceled, the normal mode is restored, and the disc playback operation remains stopped. Can be considered.

Next, the processing operation of the system controller 9 in the continuous reproduction mode will be described with reference to the flowcharts of FIGS. 3 and 4. 3 shows a case where the disk driver unit 20 is a manual type, and FIG. 4 shows a case where it is a changer type.

When the disk driver unit 20 is a manual type, as shown in FIG. 3, for example, the continuous reproduction mode is set based on the operation of the operation unit 11 by the user (F101), and the reproduction of the first disk A is performed. Then, the system controller 9 controls so that the reading operation for the first disk is performed (F102).
That is, the data writing / reading unit 21 intermittently reads data from the disk at a high speed and writes the data into the memory unit 6. Further, in this continuous reproduction mode, the memory section 6 is made to continuously read data at a low rate. Next, the system controller 9 steps
The process proceeds to F103, and it is determined whether the reading of the data of the first disc is completed. This determination can be made by a method such as detecting a lead-out address read from the disc. Where 1
If it is determined that the reading of the data of the first disc is not completed, the process returns to step F102 to continue the read operation from the disc, but if it is determined that the reading is completed, the process proceeds to step F104. The loading mechanism of the disc driver unit 20 (not shown) is controlled so that the first disc is ejected, and the process goes to step F105 to display a message on the display unit 10 for prompting the disc replacement. Control to be done.

In the next step F106, the user actually replaces the disc because it is a manual type in this case, but the loading of the second disc is completed by this, and data writing is performed again. / It is determined whether or not the disc data can be read by the reading unit 21. Here, when it is determined that the loading is not completed, the process proceeds to step F107, and it is determined whether or not the data stored in the memory unit 6 is in an empty (EMPTY) state,
If the data is empty (EMPTY), the continuous playback mode is terminated as it is and the normal playback mode is returned to. However, if the data still exists, the process returns to step F106. , Continue to determine if loading is complete. When it is determined in step F106 that the loading is completed, the process proceeds to step F108, and the data writing / reading unit 2 is operated so as to start the data reading operation of the loaded second disc B.
Then, the process proceeds to step F109 to determine whether or not the reading of the data from the disc is completed. Here, if it is determined that the reading is not completed, the process returns to step F108 to continue the operation of reading the data of the disc, but if it is determined that the reading is completed, the process proceeds to step F110 to perform the reproducing operation. That is, the data writing / reading unit 21 stops reading the disc data and the disc driving unit 2 stops the rotation of the disc, and the continuous reproduction mode ends.

When the driver section 20 is a changer type, the processing operation in the continuous reproduction mode is as shown in FIG. Here, steps F201 to F203
Since the same processing as steps F101 to F103 shown in FIG. 3 is performed, the description thereof will be omitted. And the next step F2
In 04, control is automatically performed so that the second disc B placed on the tray of the changer is newly loaded at the reproduction position. It should be noted that this disc exchange control can be executed, for example, by previously designating the disc reproduction order by a disc program or the like. The subsequent steps F205 to F209 are similar to the steps F106 to F110 shown in FIG.

As described above, in this case, 2 is used for convenience.
Although an example in which one disc is configured to be continuously reproducible is shown, for example, each step F104 to F110 shown in the flowcharts of FIGS. 3 and 4 or step
If the processing of F204 to F209 is configured to be repeatedly executed for each exchanged disc, naturally it is possible to support continuous reproduction of a larger number of discs.

Next, the continuous recording mode will be described.
Note that, here, for convenience, the case where the continuous recording mode is configured so that two discs can be continuously reproduced will be described. However, in practice, the number of continuously recordable discs can be arbitrarily set. .

FIG. 5 is a timing chart showing the operation of the recording / reproducing apparatus of this embodiment in the continuous recording mode. And in these figures, FIG.
The reproduction signal processing unit 22 (in this case, the A / D converter 7
5B shows the source recording signal input to the disc. FIG. 5B shows the timing of writing data to the disc by the data writing / reading unit 21.
FIG. 5C shows a disk that is rotationally driven by the disk drive unit 2, and FIG. 5D shows the amount of data stored with respect to the storable capacity of the memory unit 6. In this mode, the recording / reproducing signal processing unit 22
The recording data is continuously transferred from the
On the other hand, the data is read from the memory section 6 at a high speed and intermittently, and the data writing / reading section 21 writes the data on the disc.

In this case, the recording signal is continuously supplied as shown in FIG. The recording signal is recorded / reproduced by the signal processing unit 22 (A / D converter 7).
Is continuously written to the memory unit 6 as data of a digital signal at a low rate. Here, the period until reaching the time point t ₂₆ in the figure is 1 according to FIG.
The first disk is rotationally driven and is in a writable state, and the data writing / reading unit 21 intermittently writes to the disk as shown in FIG. 5B. That is, time t _{21 in} FIG.
At, when a predetermined amount of data is accumulated in the memory unit 6,
When the data read from the memory unit 6 at a high speed is written to the disk A, and the amount of data stored in the memory unit 6 decreases to a predetermined amount at time t ₂₂ , the data in the memory unit 6 is again stored. When a predetermined amount is accumulated
Until ₂₃ , the read operation from the memory unit 6 and the write operation to the disk A are stopped. After that, the writing is intermittently performed on the disc as shown in periods t ₂₃ to t ₂₄ and t _{25 to} t ₂₆ at the same timing.

In this case, when the writing to the disk A is completed at the time t ₂₆ , that is, all the recordable areas of the disk A are recorded,
The period indicated by the broken line in FIG. 5A from time t _{26 to} time t ₂₇ after this is a period in which the disc A is replaced with the second disc B. At this point, D _{V in} FIG.
It is assumed that the contents of the recording signal up to the position indicated by are finally written to the disc A. Even in the continuous recording mode, when the disc driver unit 20 is of the manual type, for example, when the reading of the first disc A is completed, the disc is automatically unloaded and pulled out, and the next second disc is read out. It is preferable to display a disc prompt.

Then, in the above t _{26 to} t ₂₇ period,
Although writing to the disk is impossible and its operation is stopped, writing / reading operation of data from the recording / reproducing signal processing section 22 to the memory section 6 is continued. Therefore, this period is shown in FIG.
The data of the recording signal after the position indicated by D _V in (a) is accumulated in the memory section 6. Therefore, t ₂₆ ~
The data storage amount in the t ₂₇ period gradually increases as shown in FIG.

When the exchange of the second disc B is completed at time t ₂₇ , the data writing / reading unit 21 starts the first data writing operation to the disc B,
For example, when the amount of data stored in the memory unit 6 decreases to a predetermined amount at time t ₂₈ , it is temporarily stopped. Here, the data first written to the disc B at the time point t ₂₇ is the data of the contents of the recording signal after the position indicated by D _V in FIG. As a result, the end of the first disc A and 2
The data of the recording signal is continuously recorded between the first portion of the disc B and the first portion of the disc B without any interruption.

After the time point t ₂₉ , the disk B is intermittently transferred to the disk B in accordance with the amount of data accumulated in the memory section 6 at the same timing as that (period t _{21 to} t ₂₆ ) described when the disk A is rotationally driven. Data is written and the recording operation on the disc B is executed.

In the continuous recording mode, since the recording data is continuously written in the memory portion 6 during the period of exchanging the disc (t _{26 to} t ₂₇ period),
The storable capacity of the memory unit 6 corresponds to the time required to complete the movement of the next disk in the case of the changer type, in addition to the setting conditions in the continuous reproduction mode described above.
Further, in the case of the manual type, the setting is made so that a margin can be obtained corresponding to the time normally expected for the user to replace the disk. However, due to the user's intention or some accident, the second disc B may not be exchanged or may be significantly delayed so that the data storage amount of the memory unit 6 becomes full and the recording signal may be stored and retained. In such a case, it is possible to automatically cancel the continuous recording mode, return to the normal mode, and stop the disc recording operation as it is. Conceivable.

Next, the processing operation of the system controller 9 in the continuous recording mode will be described with reference to the flowcharts of FIGS. 6 and 7. FIG. 6 shows a case where the disk driver unit 20 is a manual type, and FIG. 7 shows a case where it is a changer type.

In the case of FIG. 6 in which the disk driver unit 20 is a manual type, for example, the continuous recording mode is set based on the operation of the operation unit 11 by the user (F301),
If the drive of the first disc A is started, the system controller 9 controls so that the writing operation for the first disc is performed (F302). That is,
As described above, the intermittent write operation to the disk is executed in accordance with the accumulated amount of data continuously written in the memory section 6. Next, the system controller 9 proceeds to step F303 and determines whether or not the data writing to the first disc has been completed. Here, if it is determined that the writing of data to the first disc is not completed, step F3
Returning to 02, the reading operation from the disk will be continued, but if it is determined that the reading is completed, the step
While proceeding to F304, the loading mechanism of the disc driver unit 20 is controlled so that the ejection of the first disc is performed, and further the process proceeds to step F305.
The display unit 10 is controlled so that a display for prompting the exchange of the disk is displayed.

In the next step F306, for example, it is determined whether or not the loading of the second disc is completed by the work of the user himself and the disc writing operation by the data writing / reading unit 21 is enabled again. It is determined. If it is determined that the loading is not completed, the process proceeds to step F307 to determine whether or not the data stored in the memory unit 6 is full (FULL), and the data is full. (FULL)
If it is determined that the state is, the continuous recording mode is ended as it is and the normal recording mode is returned to, for example.
Returning to F306, the determination of whether the loading is completed is continued.

When it is determined in step F306 that the loading is completed, the process proceeds to step F308,
The data writing / reading unit 21 is controlled so as to start the data writing operation of the loaded second disc B, and further it proceeds to step F309 to determine whether or not the data writing to the disc is completed. Become.
Here, if it is determined that the writing has not ended, the process returns to step F308 to continue the data writing operation of the disc, but if it is determined that the writing has ended, the process proceeds to step F310 to perform the recording operation. The recording / reading operation of the data writing / reading section 21 and the rotational driving of the disk by the disk driving section 2 are stopped to end the continuous recording mode.

When the driver unit 20 is a changer type, the processing operation in the continuous recording mode is as shown in FIG. Here, steps F401 to F403
Since the same processing as steps F301 to F303 shown in FIG. 6 is performed, the description thereof will be omitted. And next step F4
In 04, control is automatically performed so that the second disc B placed on the tray of the changer is newly loaded at the recording position. Continued Step F4
Also for 05 to F409, steps F306 to F310 shown in FIG.
Since the processing is the same as, the description is omitted.

Also in this case, as in the case of the continuous reproduction mode described above, an example in which two discs can be continuously recorded is shown for convenience.
For example, the processing of steps F304 to F310 or steps F404 to F409 shown in the flowcharts of FIGS.
If it is configured such that it is performed every time the disc is replaced, it is possible to cope with the continuous recording of a larger number of discs.

Further, in the above-mentioned embodiments, the recording / reproducing apparatus capable of recording / reproducing corresponding to the magneto-optical disk is shown, but the present invention is not limited to this, and it corresponds to other recording media. The present invention can be applied to a device. For example, in a CD-DA player or the like, data is read from a CD at a predetermined double speed of a normal rate, temporarily stored in a memory, and then D / A converted at a normal rate for reproduction to provide an earthquake-proof function. However, the present invention can be applied to a reproducing device such as a CD player. Further, in the above-mentioned embodiment, the memory portion originally provided for shock proof is explained as being applied to continuous reproduction and continuous recording. In this case, it is advantageous from the viewpoint of cost. For the purpose of reproduction and continuous recording only, it is naturally conceivable to apply the present invention by providing a memory unit for a stationary device or the like that is unlikely to be frequently vibrated. For example, even if the present invention is applied by providing the memory means for a recording device corresponding to a disc capable of recording only once such as CD-WO, source recording can be performed for a long time without interruption over a plurality of CDs. It is valid. Furthermore,
Even if the present invention is applied to an LD player, regardless of the presence / absence of the double-sided playback function, the video is not interrupted during the time when the other side of the disc is played back or the disc is exchanged. Can be watched to the end without interruption, as when watching in a theater.

[0050]

As described above, the reproducing apparatus and the recording apparatus of the present invention perform continuous reproduction without forming an interrupted portion over a plurality of discs without providing a plurality of disc driver sections. Alternatively, it is possible to perform recording, which allows the user to play back music such as music or video recorded on a plurality of discs and recorded. It has an effect that it is possible to continuously enjoy the audio and images without interruption in the middle until the end. Further, at the time of recording, there is no inconvenience that a signal is not recorded when the disc is exchanged and information is lost. Therefore, even if the source has a content that exceeds the recordable time of the disc, a plurality of discs can be continuously recorded. The effect is that complete recording can be performed over the disc.

[Brief description of drawings]

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

FIG. 2 is a timing chart showing the operation of the recording / reproducing apparatus of the present embodiment in the continuous reproduction mode.

FIG. 3 is a flowchart showing a processing operation in a continuous reproduction mode in this embodiment.

FIG. 4 is a flowchart showing a processing operation in a continuous reproduction mode in this embodiment.

FIG. 5 is a timing chart showing the operation of the recording / reproducing apparatus of this embodiment in the continuous recording mode.

FIG. 6 is a flowchart showing a processing operation in a continuous recording mode in this embodiment.

FIG. 7 is a flowchart showing a processing operation in a continuous recording mode in this embodiment.

[Explanation of symbols]

 1 disk 2 disk drive section 3 optical head 4 magnetic head 5 encoder / decoder 6 memory section 7 A / D converter 8 D / A converter 9 system controller 10 display section 11 operation section 20 disk driver section 21 data writing / reading section 22 Recording / playback signal processor

Claims (2)

[Claims] 1. A data reading means for reading data from a recording medium, a storage means for holding reproduction data read by the data reading means, and reproduction data read from the storage means as a reproduction signal. The reproduction signal processing means and the control means for controlling the operations of the data reading means and the storage means are provided, and the data transfer rate per unit time between the data reading means and the storage means is the same as that of the storage means. In a reproducing apparatus in which the data transfer rate between the reproduction signal processing means in a unit time is set to be higher than the data transfer rate, the control means is configured to control the data read-out means after the data read-out from the recording medium is completed. During the period in which the reading operation of the reproduction data from the storage means is continued, the data reading means is made to read the data of the recording medium to be reproduced next. Be to start playback apparatus characterized by being configured to playback signals from a plurality of recording media so as to be continuously output from said reproducing signal processing means. 2. A recording signal processing means for outputting an input signal as recording data for recording on a recording medium, a storage means for holding the recording data output from the recording signal processing means, and a read out from the storage means. Data writing means for writing the recorded data to a recording medium, and control means for controlling the operations of the data writing means and the storage means, within a unit time between the data writing means and the storage means. In the recording device, the data transfer rate is set to be higher than the data transfer rate in a unit time between the storage means and the recording signal processing means, and the control means controls the recording by the data writing means. The recording data output from the recording signal processing means is stored for the period from the end of the writing of the data to the medium to the start of the writing of the data to the next recording medium. By continuing the operation of writing to the stage, the recording apparatus characterized by data of said input signal is configured so as to be continuously recorded on a plurality of recording media.