JPH0963189A - Recording device, reproducing device and recording/ reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To record and reproduce two signals efficiently with one system by recording/reproducing a second input signal to/from a recording medium uninterruptedly while recording/reproducing a first signal in an intermittent access manner. SOLUTION: Sound data read by an optical head 12 is stored into a memory 6 by a memory controller 5 through a RF processing circuit 14 and an EFM- ACIRC encoder/decoder 4. After that, the data is read from the memory 6 and outputted from the output terminal 11 through an ATRAC encoder/decoder 7, and a D/A converter 10. In this case, because the storing speed of data into the memory 6 is faster than the readout speed, the storing action to the memory 6 is intermittent. Accordingly unless in operation, an external input signal from an information output terminal 19 can be written into a disk 1 through an encoder/decoder 18 and a magnetic head 2. In such a way, external input signals are recorded/reproduced and processed efficiently by the use of one system while sound signals are uninterruptedly recorded and reproduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording device, a reproducing device, and a recording / reproducing device for recording / reproducing information on / from a recording medium such as a disc, and in particular, it is equipped with an information input / output means and intermittently stores information. A recording device, a reproducing device, and a recording / reproducing device for recording / reproducing the input information when there is input information in the signal input means during the reproducing operation in the recording / reproducing device for performing the recording / reproducing operation or during the recording operation. It is about.

[0002]

2. Description of the Related Art In recent years, various (information) recording / reproducing devices for recording / reproducing information using a magneto-optical disk have been developed. For example, Journal of Acoustical Society of Japan, Vol. 49, No. 4, (1993) p.
The mini disk (hereinafter referred to as "MD") system as a recording / reproducing device disclosed in p277 to 283 is
The user can record information such as arbitrary music on the disc.

FIG. 19 shows an MD as a conventional recording / reproducing apparatus.
FIG. 2 is a block diagram showing a schematic configuration of a system, in which reference numeral 200 is an audio signal input / output unit, 201 is a signal processing and operation control for an audio signal input / output from the audio signal input / output unit 200 A processing unit, 202 is an access unit for performing an access operation to the recording medium, and 1 is a disk as an example of the recording medium.

<Playback Operation in Playback Mode> In order to play back an audio signal from the disc 1 as a recording medium,
The processing is performed according to the following outline. That is, in the reproduction mode of the audio signal, the access means 2 operates in the area where the audio data corresponding to the reproduced audio signal of the disc 1 exists.
02 (reproducing means) is intermittently accessed to read the audio data recorded on the disc 1, and the processing unit 2
At 01, after performing an appropriate signal processing for reproduction, an audio signal is output from the audio signal input / output unit 200.

<Recording Operation in Recording Mode> In order to record an audio signal on the disc 1 as a recording medium, the following process is performed. That is, in the audio signal recording mode, an audio signal is input from the audio signal input / output unit 200, and the input audio signal is processed by the processing unit 2.
01 is input. The processing unit 201 performs appropriate signal processing for recording the input audio signal on the disc 1 and intermittently accesses the recording area of the disc 1 to obtain the audio data after the signal processing corresponding to the input audio signal. Is recorded on the disc 1 by using the access means 202 (recording means).

FIG. 20 is a block circuit diagram for explaining in more detail the schematic configuration of the MD system described with reference to FIG. In the figure, 1 is a disc,
2 is a magnetic head, 3 is a magnetic head drive circuit, 4 is an EFM
ACIRC (Eight to Forteen M
Odulation Advanced Cross
Interleave Reed Solomon C
code encoder / decoder, 5 is a memory controller, 6 is a memory, and 7 is ATRAC (Adaptive).
Transform Acoustic Codin
g) encoder / decoder, 8 A / D (analog / digital) conversion circuit (A / D in the figure), 9 audio signal input terminal, 10 D / A (digital / analog) conversion circuit (D / D in the figure) A), 11 is an audio signal output terminal, 12 is an optical head, 13 is a spindle motor, 14 is an RF signal processing circuit (RF in the figure), 15 is an address decoder, 16 is a servo signal processing circuit, and 17 is a central processing unit ( Hereinafter, it is referred to as a CPU (CPU in the figure).

The operation of reproducing an audio signal will be described. (When in the reproduction mode of the audio signal) First, the optical head 12 records the TOC (Ta
ble Of Contents. Data address information and the like on the disc 1 are recorded. ) After accessing the area, the address information corresponding to the area where the voice data is recorded is read. And the servo signal processing circuit 16
Controls the position of the optical head 12 (to be accessed) with respect to the disk 1 and the rotation speed of the spindle motor 13 to perform an access operation, and based on the read address information (corresponding to the audio signal to be reproduced). Read out audio data. The audio data read from the disc 1 is RF
The signal is input to the EFM ACIRC encoder / decoder 4 via the signal processing circuit 14, subjected to error correction processing and deinterleave processing, and then stored (temporarily stored) in the memory 6 via the memory controller 5.

The memory controller 5 reads the audio data stored in the memory 6, the read audio data is subjected to decompression processing by the ATRAC encoder / decoder 7, and the audio signal is sent via the D / A conversion circuit 10. Is output (reproduced) from the audio signal output terminal 11.

By the way, since the (data) transfer speed when storing voice data in the memory 6 is faster than the transfer speed when reading voice data from the memory 6, the storing operation in the memory 6 is performed intermittently. , Continuously read.

The memory controller 5 here monitors the data amount (information amount) in the memory 6,
When the data amount (information amount) stored in the memory 6 exceeds a predetermined upper limit value (capacity value), the storage operation in the memory 6 is stopped, and when the data amount falls below the predetermined lower limit value (capacity value), the storage operation is restarted. By doing so, the amount of data (the amount of information) stored in the memory 6 is managed. Hereinafter, this operation will be described with reference to FIG.
It will be described with reference to FIG.

FIG. 21 is an explanatory diagram for explaining the state of the operation of storing and reading the audio data in the memory 6, in which the amount of data stored in the memory 6 at time t0 shown in FIG. When the value is below the lower limit, the CPU 17 causes the servo signal processing circuit 16 to output the disc 1
Command to start the operation of reading the audio data from. The voice data is read from the disk 1 by this command, and the read voice data is stored in the memory 6. (The hatched portion in FIG. 21A indicates that the disk 1 is being accessed and the data is being stored in the memory 6. Note that the memory 6 is shown in FIG.
Indicates that continuous data reading is being performed. )

By the way, since the (data) transfer rate when storing the voice data read from the time t0 in the memory 6 is faster than the transfer rate when reading the voice data from the memory 6, it is stored in the memory 6. Data volume (information volume)
Increases and exceeds a predetermined upper limit value at time t1. The monitoring information regarding the data amount (information amount) is given from the memory controller 5 to the CPU 17.

The CPU 17 instructs the servo signal processing circuit 16 to stop (pause) the read operation of the audio data from the disk 1 based on the monitoring information from the memory controller 5, and to the memory 6 of the read audio data together. The memory controller 5 is instructed to stop (pause) the storage operation.

While the storage of the audio data in the memory 6 is stopped (paused) (in this case, from time t1 to t2), the audio data is continuously output from the memory 6 as shown in FIG. 15 (b). The data amount (information amount) that has been read out and stored in the memory 6 gradually decreases.

Due to the reduction of the data amount (information amount),
When the value falls below a predetermined lower limit value (capacity value) at time t2, the memory controller 5 provides the CPU 17 with monitoring information regarding this data amount (information amount), and based on the monitoring information from this memory controller 5, the CPU 17 performs servo control. The signal processing circuit 16 is instructed to start (restart) the operation of reading the audio data from the disk 1. At the same time, the CPU 17 causes the memory controller 5 to start (restart) the operation of storing the read audio data in the memory 6.
Command to.

The audio data stored in the memory 6 between the times t0 and t1 is read out from the memory 6 and then,
The above-described expansion processing and the like are performed, and the sound signal is output from the sound output terminal 11 as a sound signal between times t8 and t9. Time t2
After that, the same processing is repeated to output the audio signal.

Next, the operation for recording a voice signal will be described. The audio signal continuously input to the audio input terminal 9 (in the audio signal recording mode) is converted into audio data by the A / D conversion circuit 8. This audio data is (data) compressed by the ATRAC encoder / decoder 7 and temporarily stored in the memory 6 via the memory controller 5.

The memory controller 5 operates so as to read the audio data stored in the memory 6, and the read audio data is read by the EFM ACIRC encoder /
The data is input to the decoder 4, added with an error correction code, and further interleaved. The audio data subjected to the interleave processing is the magnetic head drive circuit 3
Recording is performed on the disk 1 based on the state of magnetic field modulation by the magnetic head 2 driven by.

In the recording mode, the (data) transfer rate for storing the audio data in the memory 6 is lower than the (data) transfer rate for reading the audio data from the memory 6, as opposed to the audio reproduction mode. The storing operation in the memory 6 is continuously performed, and the reading operation from the memory 6 is intermittent.

The memory controller 5 here monitors the data amount (information amount) in the memory 6,
When the data amount (information amount) stored in the memory 6 exceeds a predetermined upper limit value, the reading from the memory 6 is started, and when the data amount falls below the predetermined lower limit value (capacity value), the reading from the memory 6 is stopped. Manages the amount of data (the amount of information) stored in the memory 6. Hereinafter, this operation will be described with reference to FIGS.

FIG. 22 is an explanatory diagram for explaining the state of the operation of storing and reading the audio data in the memory 6, and as shown in FIG. 22 (a), the input of the audio signal from the audio input terminal 9 is continuous. Then, the voice data is stored in the memory 6 accordingly. (In FIG. 22A, it is shown that the audio signal is input and the data is stored in the memory 6 continuously. The hatched portion in FIG. Indicates that an access operation is being performed.)

By the way, since the (data) transfer rate when storing voice data in the memory 6 is slower than the (data) transfer rate when reading voice data from the memory 6, the amount of data stored in the memory 6 ( The amount of information) decreases.

Therefore, the reading of the audio data from the memory 6 shown in FIG.
3, the amount of information stored in the memory 6 falls below a predetermined lower limit value (capacity value), and monitoring information regarding this amount of data (information amount) is given from the memory controller 5 to the CPU 17.

Based on the monitoring information from the memory controller 5, the CPU 17 instructs the memory controller 5 to stop reading the audio data from the memory 6 at the time t3, and at the same time, the CPU 17 causes the servo signal processing circuit 16 to stop.
By instructing to stop the operation of writing the audio data to the disk 1, the reading from the memory 6 is stopped, and the writing to the disk 1 is stopped at the same time.

On the other hand, while the reading of the audio data from the memory 6 is stopped, the information flowing from the audio input terminal 9 is continuously stored in the memory 6 as shown in FIG. , The amount of information stored in the memory 6 increases, and when it exceeds a predetermined upper limit value at time t4, writing to the disk 1 is restarted. Here, from time t8 to t9
During the period, the audio data corresponding to the audio data stored in the memory 6 is read from the memory 6 and written to the disc 1 from time t4 to t5. Thus, after time t4, similar processing is repeated.

A U-TOC (Use) for recording song address information, song name, date, etc. on the MD disc.
There is an area called r's Table Of Contents), and by reading out address information, music title, date, etc. of a music piece from this U-TOC area, an arbitrary music piece can be quickly reproduced and this U -T
When the user rewrites the information included in the OC area, the operation such as editing can be easily performed. In addition, it is possible to quickly locate the unrecorded or recordable area.

Further, an MD data system has been put on the market which is capable of recording and reproducing not only audio data but also general digital data by using an MD disc. If this system is used, it is compressed. Various general data can be recorded / reproduced on / from the MD disk in addition to the audio.

[0028]

Since the conventional information recording / reproducing apparatus is constructed as described above, it is
For example, input (or receive) other information from outside the device
If so, a single device is not configured to record other input (or received) information, so prepare another system or record / reproduce audio data at that time. It is necessary to temporarily stop and record the information input (or received) using this recording / reproducing apparatus.

The present invention has been made in order to solve the above problems, and in the recording mode or reproduction mode for audio data (first signal), the information (second It is an object of the present invention to obtain a recording device, a reproducing device, and a recording / reproducing device capable of recording / reproducing the signal of

[0030]

Means for Solving the Problems In the first invention,
A recording apparatus having an access unit for performing an intermittent access operation targeting at least a first signal to a recording medium, comprising a signal input unit for inputting a second signal, the first signal The second signal input to the signal input means is recorded on the recording medium according to the operating state of the access means.

In the second invention, the recording medium in the recording apparatus according to the first invention is constituted by a disk.

According to a third aspect of the invention, the recording medium in the recording apparatus according to the first aspect is constituted by a memory.

According to a fourth aspect of the present invention, the recording apparatus according to the first aspect is provided with a recording area dedicated to the second signal on the recording medium.

According to a fifth aspect of the invention, in the recording apparatus according to the fourth aspect of the invention, the recording area dedicated to the second signal is provided in the sub data sector.

According to a sixth aspect of the present invention, the recording apparatus according to the fourth aspect has a structure in which the recording area dedicated to the second signal is formed by a plurality of continuous clusters.

According to a seventh aspect of the invention, in the recording device according to the fourth aspect of the invention, the recording area dedicated to the second signal is formed by clusters dispersed in cluster units.

According to an eighth aspect of the invention, the recording apparatus according to the first aspect of the invention is configured to have an information selecting means for selecting the type of the second signal.

According to a ninth aspect of the invention, in the recording apparatus according to the eighth aspect of the invention, the information selecting means has a data table for selecting the second signal.

In the tenth invention, the recording apparatus according to the ninth invention has priority information in the data table, and the second signal is selected based on this priority information. It is a thing.

In the eleventh aspect of the invention, in the reproducing apparatus having the reproducing means for reproducing the first signal and the second signal on the recording medium, the signal outputting means for outputting the second signal. And reproducing the second signal from the recording medium in accordance with the reproducing operation of the reproducing means for the first signal.

According to a twelfth aspect of the invention, there is provided a recording / reproducing apparatus having a recording medium and a recording / reproducing means for intermittently performing a recording operation or a reproducing operation targeting at least the first signal on the recording medium. A second signal input to the signal input means according to an operating state of the recording / reproducing means for the first signal, the signal input means for inputting the second signal. Is recorded on a recording medium.

According to a thirteenth invention, in the recording / reproducing apparatus according to the twelfth invention, a storage means for storing the second signal is provided, and information is inputted from the signal input means during the operation period of the recording / reproducing means. When performed, the second signal is stored in the storage means, and the second signal is recorded on the recording medium according to the operating state of the recording / reproducing means.

According to a fourteenth invention, in the recording / reproducing apparatus according to the thirteenth invention, the storage means is shared between the first signal and the second signal.

[0044]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A recording / reproducing apparatus according to the present invention will be specifically described below with reference to the drawings showing an embodiment thereof. In the drawings, the same reference numerals indicate the same or corresponding ones as those in the related art.

Embodiment 1 FIG. 1 is a block diagram showing an example of a schematic configuration of a recording / reproducing apparatus according to an embodiment of the present invention. In the figure, 200 is an audio signal input / output means,
201 is a processing unit that performs signal processing and operation control, 202 is an access unit that performs an access operation to a recording medium,
203 is an external information input / output means.

<Recording Mode> In order to record the audio signal on the disc 1 as an example of the recording medium, processing is performed according to the following outline. That is, the audio signal input / output unit 2
00, an audio signal is input, and this audio signal is input to the processing unit 201 and processed as audio data. The processing unit 201 performs appropriate signal processing for recording the audio data on the disc 1, intermittently accesses the recording area on the disc 1, and uses the access unit 202 (recording unit) to access the audio data after the signal processing. And record it on the disc 1.

<Reproduction Mode> In order to reproduce the audio data from the disc 1, processing is performed according to the following outline. That is, the access means 202 (reproducing means) is intermittently accessed to the area of the disk 1 where the audio data exists, the audio data recorded on the disk 1 is read out, and the processing section 201 performs a predetermined process. It is output from the voice signal input / output unit 200 as a rear voice signal.

<Recording of Input Information in Recording / Reproducing Mode> In the above recording mode or reproducing mode,
When information is input from the external information input / output unit 203 to the processing unit 201 during the recording / reproducing operation (access operation) for recording / reproducing, the recording operation for the input information is performed according to the processing procedure shown in FIG. Do. FIG. 2 is a diagram showing a flowchart for explaining the outline of the recording operation,
This will be described below. That is, the external information input / output unit 203
Information is input to the processing unit 201 from (S
1), at that time, the operating state (recording, reproducing operation or during suspension) is determined (S2), and if it is during suspension, the input information is written to the disc 1 as a recording medium (S3), and operation is performed. If it is medium, the input information is stored in the memory as a storage unit (input information saving process, S
4).

By operating as described above, the information input from the external information input / output means 203 during the recording / reproducing operation (access operation) in the recording mode and the reproducing mode can be recorded on the disc 1. .

<Reproduction of Recorded Information in Recording and Reproduction Mode> During the recording and reproduction operation (access operation) for recording and reproduction in the above recording mode or reproduction mode, the external information input / output means 203 When the recorded information is reproduced, the reproducing operation for the recorded information is performed according to the processing procedure shown in FIG. FIG. 3 is a diagram showing a flowchart for explaining the outline of the reproducing operation, which will be described below.
That is, when an information reproduction command (reproduction request) is issued to the processing unit 203 (S5), the operation state (recording, reproduction operation or pause) is determined at that time (S5).
6) If it is in operation, wait until it becomes inactive (S
7) If it is not in operation, the processing unit 203 determines that the access unit 2
02 (playback means) to access the U-TOC area,
-The management information recorded in the TOC area is read out, and if the operation of the access means 202 (reproducing means) is not in operation, the access means is used to access the portion of the disc 1 where the recorded information exists based on the obtained management information. 202 (reproduction means) is accessed (S8) to reproduce the recorded information (S
9).

FIG. 4 is a more detailed block diagram showing an example of the (information) recording / reproducing apparatus according to the embodiment of the present invention described above. In the figure, 1 to 17 are the same as the conventional MD system as the recording / reproducing apparatus shown in FIG. Reference numeral 18 is a data encoder / decoder, and 19 is an information input / output terminal, which is used when the MD system is used as external information such as traffic jam information, parking lot vacant information, and recent so-called multimedia personal computer external storage devices. The information (or data) by the data input or the output of the calculation result is input / output to / from the MD system through the information input / output terminal 19 while the image display or the audio output is being performed.

The flow of the above operation will be described with reference to the flow chart showing the details of the recording operation shown in FIG. First, the device side is in the audio signal recording / reproducing mode (the recording operation and the reproducing operation of the audio data are intermittently performed.
10) When the audio signal recording / reproducing mode is completed, the operation is ended (S12). If the audio signal recording / reproducing mode is not completed, it is determined whether or not information is input from the information input / output terminal 19 and input. If not, the intermittent operation is continued (S1
1, S13), if there is an input, it is determined whether or not it is in operation (for recording and reproduction) (S14). If it is not in operation, data writing (external) information to the recording medium is performed (S1).
5). Here, it is judged whether or not there is an instruction (operation start instruction) for starting the recording or reproducing operation of the audio signal (S16), and if there is the operation start instruction, the operation of writing the data of the (external) information to the recording medium is performed. The operation (recording or reproduction) targeting the audio signal is started at the same time as the interruption (S18),
Move to the next step S20. If there is no operation start command, the writing is continued if the writing in step S15 is not completed, and when the writing is completed, the operation proceeds to intermittent operation step S10 (S17).

If the operation is being performed in step S14 or the operation is started in step S18, all input information from the outside is stored and then recorded in the recording medium, or if information is input to some extent. When performing batch recording according to whether the writing operation is performed one by one (whether or not to perform batch recording, S20), data is stored in the memory 6 until the end of the input information (S21, S22). When the storage is completed, it is determined whether or not it is in operation (S23), and if it is not in operation, information data is written to the recording medium (S2).
4). Here, it is judged whether or not there is an instruction (operation start instruction) for starting the recording or reproducing operation of the audio signal (S25), and if there is the operation start instruction, the operation of writing the data of the (external) information to the recording medium is performed. The operation (recording or reproduction) targeting the audio signal is started at the same time as the interruption (S27),
Then, the process proceeds to next step S23. When there is no operation start command, when the writing in step S24 is completed, the operation proceeds to intermittent operation step S10 (S26).

If the batch recording is not performed in step S20, it is judged whether or not it is in operation (S30), and if it is in operation, the storing operation to the memory 6 is performed (S31). Data is written (S3
2). Here, it is judged whether or not there is an instruction (operation start instruction) for starting the recording or reproducing operation of the audio signal (S33), and if there is the operation start instruction, the data writing operation of the (external) information to the recording medium is performed. The operation (recording or reproduction) targeting the audio signal is started at the same time as the interruption (S36),
Then, the process proceeds to next step S30. If there is no operation start command, data writing is performed until the writing in step S32 is completed (S34). If there is any remaining data, the process returns to step S30, and if there is no remaining data, the process proceeds to the intermittent operation step S10 (S35).
In the above description, the disk 1 is used as an example of the recording medium, but a memory may be used. Even when a memory is used, the same operation and effect can be obtained by performing the above operation.

Embodiment 2 Hereinafter, an embodiment relating to a recording / reproducing apparatus will be described mainly using an MD system as an example. FIG. 6 is an explanatory diagram showing the data format of the MD system. As shown in the figure, the data of the MD system is composed of a plurality of clusters, and one cluster has three link sectors (FC sector to FE sector in the figure), 1 One sub data sector (FF sector in the figure) and 32 main data sectors (00 sector to 1F sector in the figure) are included in a total of 36 sectors. (In the figure, FC sector, FD
FC, FD, ... Of sectors ... Show sector addresses in hexadecimal notation. In the MD system, a link sector is provided at the boundary between clusters so that the audio data can be freely edited, and the format is such that recording and reproduction can be performed in cluster units. As an example of an embodiment in the following description, a case will be described in which information input from the outside is recorded in this sub data sector.

Since the recording / reproducing operation of the audio signal is the same as that of the conventional MD system, its detailed description will be omitted. Here, a specific operation when information is input during audio reproduction will be described with reference to FIGS. 4 and 7 to 9. FIG. 7 is an explanatory diagram for recording information input from the outside during reproduction of sound (note that the hatched portion in FIG. 7A has been read from the disk 1 and stored in the memory 6). 7 (b) shows a state of continuous reading from the memory 6, and the hatched portion of FIG. 7 (c) shows that writing is being performed on the disk 1). A data structure diagram in the memory 6 during this operation is shown in FIG. 9, and a data structure diagram on the disk 1 is shown in FIG.

The servo signal processing circuit 16 reads the audio data recorded in the nth cluster (FIG. 6) on the disk 1 between the times t0 and t1 shown in FIG. 7 so as to read the optical head 12 and the spindle motor 13. Is performed to perform an access operation, and the audio data read by this access operation is stored in the memory 6 at memory addresses d1 to d1.
2 (FIG. 8A). (For example, data from t0 to t1 may be stored in the area of addresses d1 to d2, and may be used as an intermediate processing area in the area of d0 to d1. An example of this is shown in FIG. 8B. When information is input from the information input / output terminal 19 at time t11 shown in FIG. 7, the data encoder / decoder 18 converts the input information into the format of the MD system and E
Output to the FM / ACIRC encoder / decoder 4.
At this time, the memory controller 5 continuously outputs the data on the memory 6 to the ATRAC encoder / decoder 7, and at the same time, outputs the data stored in the areas d1 to d2 to the EFM / ACIRC encoder / decoder 4.

In the EFM / ACIRC encoder / decoder 4, the audio data read from the disk 1 from time t0 to t1 is input to the main data sector shown in FIG. 6 in the information data input from the information input / output terminal 19 at time t11. Audio data and information data are combined (rearranged or configured) so as to be recorded in the sub data sector, and are combined (rearranged or configured) with the n-th cluster on the disk 1 between times t12 and t13. And write (record) information data. The data structure on the disc 1 formed at this time is shown in FIG. After that, after time t2, the data of the (n + 1) th cluster and thereafter on the disk 1 is read. By doing this, M
Although the D system can record only in units of clusters, it is possible to replace only the sub data sector by using the data in the memory 6.

In the above description, reading from the disk 1 was performed one cluster at a time. However, when reading a plurality of clusters collectively, only one cluster is rewritten without performing the writing operation of all the read clusters. Good as For example, when 5 clusters are collectively read and an operation is applied to the 3rd cluster, the rewriting process is performed only for the 3rd cluster instead of rewriting for 5 clusters. At this time, the information input / output terminal 19
If the amount of input data is larger than the capacity that one sub-data sector can accommodate, the sub-data sector may be rewritten over a plurality of clusters.

In addition to the above operation, the management information such as the address and the amount of information about the sub-data sector which has been recorded or rewritten at this time is stored in the U-disk of the disk 1 or the like.
Record in the TOC area. In this way, if the management information such as the address and the information amount where the information is recorded in the area such as the U-TOC of the disc 1 is recorded in advance, the information can be easily accessed.

The operation of reading the recorded information will be specifically described below. First, U-TOC of disk 1
The management information such as the address and the amount of information of the sub-data sector in which the information recorded in the area such as is recorded is read. Next, while the write operation or read operation to the disk 1 is stopped, the sub-data sector is accessed to read the recorded information and output from the information input / output terminal 19 via the data encoder / decoder 18. . By reading the information recorded as described above, it is possible to read and output the recorded information without interrupting the recording or reproduction of the audio data. In the above description, the disk 1 is used as an example of the recording medium, but a memory may be used. Even when a memory is used, the same operation and effect can be obtained by performing the above operation.

Embodiment 3 As another example of the embodiment according to the present invention, an example of an embodiment in which the input information is recorded together with the voice data when the information is input from the outside while recording the voice data will be described. Below, FIG.
And it demonstrates in detail with reference to FIG.

FIG. 10 is an explanatory diagram for recording information input from the outside while recording audio data. (Note that FIG. 10A shows that continuous data is continuously stored in the memory 6, and the hatched portion in FIG. 10B shows that the disk 1 is being accessed. In the figure, the voice data input from the voice input terminal 9 between times t8 and t9 is temporarily stored in the memory 6,
It is read from the memory 6 from time t4 to time t5.

Here, time t1 between times t3 and t4
2 is input from the information input / output terminal 19, the input information signal is passed through the data encoder / decoder 18 (after being converted to the MD format) and then EFM /
In the ACIRC encoder / decoder 4, the audio data read from the memory 6 is combined (sorted or configured) and written (recorded) on the disc 1.
In this case, for example, as in the second embodiment, the audio data and the information data are combined (sorted or configured) so that the audio data is recorded in the main data sector and the information data input in the sub data sector is recorded. To record.

As described above, it is possible to record the information inputted from the outside together with the recording of the voice data. Here, if the management information such as the address and information of the sub-data sector which is newly recorded or rewritten in accordance with the above operation is recorded in the U-TOC area of the disc 1 or the like, writing is performed. The information written by the operation can be easily read.

The operation of reading the information thus recorded will be described below. First, U-T of disk 1
The management information such as the address and information amount of the sub data sector corresponding to the information data recorded in the area such as OC is read. Next, while the writing operation or the reading operation to the disk 1 is stopped (paused), the sub data sector is accessed to read the information data, and the information input / output terminal 19 is supplied via the data encoder / decoder 18. Output. By reading the information data recorded in this way, it is possible to read and output the recorded information without interrupting the recording operation or the reproducing operation of the audio data. In the above description, the disk 1 is used as an example of the recording medium, but a memory may be used. Even when a memory is used, the same operation and effect can be obtained by performing the above operation.

Fourth Embodiment As another example of the embodiment according to the present invention, an area dedicated to information input from the outside is provided on the disc 1, and when information is input from the outside during reproduction of audio, the area dedicated to the information is An example of an embodiment for recording information will be described. Hereinafter, FIG. 4 and FIG.
And it demonstrates in detail with reference to FIG.

FIG. 11 is an explanatory diagram showing an example of the data format on the disk 1 according to this embodiment. In this example, a part of the original music data area on the disc 1 is allocated to the information data area (here, as an example, the outer peripheral portion on the disc 1), and the audio data is input during reproduction (from the outside). This information is recorded in this information data area. Below, FIG.
The operation when information is input from the outside during reproduction of audio data will be described with reference to FIG.

In the audio mode, the read operation from the disk 1 is stopped during the period from time t1 to t2, and the time is t.
When information is input to the information input / output terminal 19 at 11, the servo signal processing circuit 16 controls the optical head 12 to move to the information data area in the outer peripheral direction, and the information input during the time t12 to t13. Is recorded in the information data area on the disc 1.

Then, the servo signal processing circuit 16 controls the optical head 12 to read the continuation of the original audio data from the disk 1 after the time t2. In this way, while the reading from the disc 1 is stopped, the (external) information input from the information input / output terminal 19 is recorded in the information data area on the disc 1 to interrupt the sound being reproduced. It is possible to record in the information data area on the disc 1 without any need.

Although the information data area is provided in the outer peripheral portion in the embodiment described here, it may be provided in any portion such as the inner periphery or the middle periphery on the disk 1. That is, the same operation may be performed by forming the information data area by a plurality of continuous clusters. In addition to the above-described operation, recording is performed by newly recording or recording management information such as an address and an information amount of an information-dedicated area that has been rewritten in the U-TOC area of the disc 1 or the like. The information on which the operation was performed can be easily accessed.

Next, the operation of reading the information thus recorded will be described. First, U- of disk 1
The management information such as the address and the amount of information corresponding to the information data recorded in the area such as the TOC is read out, and the disc 1
Write operation or read operation to (stop)
During this time, the information data area is accessed to read the recorded information data and output from the information input / output terminal 19 via the data encoder / decoder 18. By reading the recorded information as described above, it is possible to read the recorded information without interrupting the recording operation or the reproducing operation of the audio data. In the above description, the disk 1 is used as an example of the recording medium, but a memory may be used. Even when a memory is used, the same operation and effect can be obtained by performing the above operation.

Embodiment 5 As another example of the embodiment according to the present invention, an area dedicated to information input from the outside is provided on the disc 1, and when information is input from the outside while recording voice, the area dedicated to the information is An example of an embodiment for recording information will be described. Hereinafter, FIG. 4 and FIG.
This will be described in detail with reference to FIG. (Note that Figure 1
2A shows that continuous data is being stored in the memory 6, and the hatched portion in FIG. 12B shows that an access operation to the disk 1 is being performed. In the description of this embodiment, it is assumed that the data format shown in FIG. 11 is adopted.

In the audio data recording mode, when information is input to the data input terminal 19 at time t12, for example, the audio data is temporarily stored in the memory 6 and writing to the disk 1 is performed from time t3 to t4. Is stopped, the servo signal processing circuit 16 controls the optical head 12 in the meantime to move to the information data area in the outer peripheral direction at time t1.
From 3 to t14, the input information is recorded in the information data area. Then, the servo signal processing circuit 16 controls the optical head 12 to write the continuation of the original music information to the disc 1 after the time t4.

As described above, by recording the information inputted in the information data area while the writing to the disc 1 is stopped, the inputted information can be discriminated without interruption of the sound being recorded. 1 can be recorded in the information data area. Also in this embodiment, the information data area is provided in the outer circumference portion, but it may be provided in any portion such as the inner circumference or the middle circumference on the disc 1, and the management information such as the address and the information amount of the information data area is provided. If the data is recorded in the area such as the U-TOC on the disc 1, it is possible to easily access the information for which the recording operation is performed.

Next, the operation of reading the information thus recorded will be described. U-TOC of disk 1
Management information such as an address and an information amount corresponding to the information data recorded in the area such as the data is read, and the information data is read while writing to the disk 1 or while the reading is stopped, and is read via the data encoder / decoder 18. And output from the information input / output terminal 19. In this way, the information data can be read without interrupting the recording or reproduction of the audio data when reading the information data. In the above description, the disk 1 is used as an example of the recording medium, but a memory may be used. Even when a memory is used, the same operation and effect can be obtained by performing the above operation.

Embodiment 6 FIG. As another example of the embodiment according to the present invention, an area dedicated to information in a cluster unit (distributed on the disk 1) for recording information input from the outside on the disk 1 is provided, and An example of an embodiment for recording information in an area dedicated to the information when the information is input from the outside during the reproducing operation will be described. Hereinafter, a detailed description will be given with reference to FIGS. 4, 7, and 13.

As shown in FIG. 13, for example, one information data dedicated area (information data dedicated cluster) is provided for every four clusters, and hatched portions (n, n
An area dedicated to information data is provided in the n + k · 1, ..., N + k · mth cluster. However, k is an arrangement | positioning space | interval and m is an integer. Note that here, k = 4. ) Is an area dedicated to information data, and audio data is not recorded here.

As described above, the operation when information is externally input to the disk 1 provided with the information data exclusive area in a predetermined cluster unit while the audio data is being reproduced. Will be described with reference to FIG. 7. During time t0 to t1, audio data of n + 1 cluster to n + 3 cluster of the disk 1 is read, and while reading is stopped (paused) from time t1 to t2, information is input from the information input / output terminal 19 at time t11. Is input, the information data input to the (n + 4) th cluster of the information data area is written from time t12 to t13, and after time t2, the continuation of the original audio data after the (n + 5) th cluster is read from the disc 1.

As described above, by recording the information data in the information data area while the reading from the disc 1 is stopped (paused), the input information can be recorded without interruption of the sound being reproduced. Can be recorded in the information data area on the disc 1. Further, in the embodiment described here, as compared with the embodiment described in the fourth embodiment, the area in which the information input from the outside is recorded is near the area in which the audio data being reproduced is recorded. Because
It is easy to find the beginning of each area.

In the embodiment described here, one information data area is provided for every four clusters, but the distribution ratio (arrangement interval) may be set arbitrarily. If management information such as the address and the amount of information of this information data area is recorded in the area such as the U-TOC of the disc 1, the information can be easily read. Therefore, the clusters serving as the information data area do not necessarily have to be arranged at equal intervals, and the cluster serving as the information data area may exist over a plurality of clusters.

Note that U-TOC data is basically stored in the disk 1 when the disk 1 is taken out (discharged) from the MD device.
The data is recorded in the U-TOC area provided above, but when the read operation from the disk 1 is performed without ejecting the disk 1, the U-TOC stored in the CPU 17 or the memory area accompanying it is recorded. Since the data (mainly management information such as address and amount of information) is rewritten, at least new U-TOC data is always C
It is stored in the PU 17 or the memory area associated with it.

Next, the operation of reading the information thus recorded will be described. First, U-T of disk 1
The management information such as the address and the amount of information corresponding to the information recorded in the area such as OC is read, and the information data is read while the writing operation to the disk 1 or the reading operation is stopped (paused). The information is output from the information input / output terminal 19 via the encoder / decoder 18.
As described above, the read operation is performed while the writing or reading to the disk 1 is stopped (paused), and therefore, when reading the information data, the information data is read without interrupting the recording operation or the reproducing operation of the audio data. be able to. In the above description, the disk 1 is used as an example of the recording medium, but a memory may be used. Even when a memory is used, the same operation and effect can be obtained by performing the above operation.

Embodiment 7 FIG. As another example of the embodiment according to the present invention, an area dedicated to information in a cluster unit (distributed on the disk 1) for recording information input from the outside on the disk 1 is provided, and An example of an embodiment for recording information in an area dedicated to the information when the information is input from the outside during the recording operation will be described. Hereinafter, a detailed description will be given with reference to FIGS. 4, 13 and 14.

As shown in FIG. 13, for example, one information data dedicated area (information data dedicated cluster) is provided for every four clusters, and hatched portions (n, n + k) in FIG.
・ A dedicated area for information data is provided in 1, ..., N + k · m clusters. However, k is an arrangement | positioning space | interval and m is an integer. Note that here, k = 4. ) Is an area dedicated to information data. FIG. 14 shows the information input / output terminal 19 during the operation of recording the audio data on the disk 1 provided with the information exclusive data exclusive area in the cluster unit.
It is explanatory drawing at the time of inputting more information. (Note that FIG. 14A shows that audio data is continuously input and stored in the memory 6, and the hatched portion in FIG. 14B indicates that data is written to the disk 1. It means that it is being said.)

The audio data input from the audio signal input terminal 9 between times t8 and t9 is written in the n + 1th to n + 3th clusters on the disk 1 between times t4 and t5. Here, when information is input to the information input / output terminal 19 at time t12, writing to the disk 1 is stopped (paused) between times t5 and t6, and therefore, on the disk 1 between times t13 and t14. N + 4
Record informational data in the cluster. After time t6, the audio data input after time t9 is recorded on the disc 1
Write to the n + 5th cluster and above.

As described above, by recording the information data input to the information input / output terminal 19 while the writing on the disc 1 is stopped (paused), the recording of the audio data is not interrupted. Information input from the outside can be recorded in the information data area on the disc 1. Further, in the present embodiment, as compared with the fifth embodiment, the area for recording the information input from the outside is near the area where the audio data is recorded. It is easy to find the beginning of each data area. In the description of the embodiment described here, one information data area is provided for every four clusters, but the ratio (arrangement interval) may be set to any value. If management information such as the address and the amount of information of this information data area is recorded in the area such as the U-TOC of the disc 1, the information data can be easily read.

Here, the clusters to be the information data area do not necessarily have to be arranged at equal intervals, and the clusters to be the information data area may exist over a plurality of clusters. Note that U-TOC data is basically recorded in the U-TOC area provided on the disc 1 when the disc 1 is taken out (discharged) from the MD device.
When the reading operation from the disk 1 is performed without taking out the disk 1, rewriting of the U-TOC data (mainly management information such as an address and an information amount) stored in the CPU 17 or a memory area accompanying it Therefore, new U-TOC data is always stored in the CPU 17 or the memory area associated with it.

Next, the operation of reading the recorded information will be described. The address or the amount of information recorded in the information recorded in the U-TOC area or the like of the disc 1 is read, and while the writing to the disc 1 or the reading is stopped, the information is read to read the data. Information input / output terminal 1 via encoder / decoder 18
9 to output. In this way, the read operation is performed while the writing or reading to the disc 1 is stopped, so that the information can be read without interrupting the recording or reproduction of the audio data when reading the information.

Although the data encoder / decoder 18 is connected to the EFM ACIRC encoder / decoder 4 in the second to seventh embodiments, it is connected to the memory controller 5 as shown in FIG. The information may be stored in the temporary memory 6 and the memory controller 5 may perform processing such as data combination. By doing so, for example, when information is input from the information input / output terminal 19 during the writing operation to the disk 1 between the times t4 and t5, this input information is stored in the temporary memory 6 To time t5 to t
It becomes possible to perform the recording operation during the period 6. In the above description, the disk 1 is used as an example of the recording medium, but a memory may be used. Even when a memory is used, the same operation and effect can be obtained by performing the above operation.

Eighth Embodiment As another example of the embodiment according to the present invention, when the type of the input information is discriminated, only the information data of the selected type is recorded, and the new information is input with the same type of information, An example of an embodiment in which old information data recorded on a disc is replaced will be described.

The information data in the description of the embodiments here is, for example, when it is applied to an on-vehicle information device, information on traffic jams and accidents from outside, information on parking lot availability, etc. When the MD system is used as an external storage device such as a media personal computer, it is data such as the result of calculation while displaying images and outputting audio. When these information data are input from the information input / output terminal 19, only necessary information data may be recorded and replaced with the latest information data. Hereinafter, the operation in such a case will be described in detail with reference to FIGS. 4 and 16.

The information recorded in the information data area is managed by an information management table as shown in FIG. 16, for example. This information management table holds information such as the type of all recorded information existing on the disc 1, the start address, the end address, the recording time, and the rank (priority or importance). U-TO on 1
It is recorded in an area such as C. Here, the rank information represents the degree of importance or priority of the recorded information, and when the capacity of the information data area is full, it is basically replaced in order from the lowest rank. belongs to.

When information is input from the information input / output terminal 19, the data encoder / decoder 18 selects only necessary information that has been set in advance. That is, for example, when three types of information such as traffic congestion information, accident information, and parking lot vacant information are input from the information input / output terminal 19, the traffic congestion information and the accident information are set in advance as necessary information, EFM AC for traffic information and accident information only
The information is transferred to the IRC encoder / decoder 4, and the parking lot availability information is not transferred.

The EFM ACIRC encoder / decoder 4 judges the type and recording time of the information currently recorded on the disc 1 based on the management table of the information recorded on the disc 1 to determine the data encoder / decoder. 1
If the type of the information data transferred from No. 8 is the same as the type of the information data recorded on the disc 1, it is replaced with the newly input information type, the type of information in the management table, the start address, the end address, and the recording time. Also, information such as rank (priority or importance) is rewritten to the latest data.

From the address information of the management table,
Calculate the total information amount of the recorded information (actual information amount or number of used sectors), and if the prepared information data area is full, Of these, the one having the lowest priority may be basically deleted, and the deletion order may be determined by additional conditions such as the recording time, the access distance, and the capacity (data amount). For example, the erase priority is set in the order of the lowest priority and the oldest recording time, or the lowest priority and the shortest access distance, and the information entered based on the erase priority is set. Is written in the disc 1 and information such as the type of information, start address, end address, recording time, rank (priority or importance) in the management table is also updated.

Although the data encoder / decoder 18 is connected to the EFM ACIRC encoder / decoder 4 in the above description of the embodiment, it is connected to the memory controller 5 as shown in FIG. Information may be stored in the temporary memory 6 and the memory controller 5 may process the data. By doing so, for example, when information is input from the outside while the writing operation on the disk 1 is being performed, this input information is saved in the temporary memory 6 and the writing operation is stopped. In the meantime, it becomes possible to record the input information.

The flow of the above operation will be described with reference to the flowchart shown in FIG. First, the device side is in the audio signal recording / reproducing mode (the recording operation and the reproducing operation of the audio data are intermittently performed. S40), and when the audio signal recording / reproducing mode ends, the operation ends (S42), and the operation must end. For example, it is determined whether or not there is information input from the information input / output terminal 19, and if there is no input, the intermittent operation is continued (S4
1, S43), if there is an input, it is determined whether or not the input information is important information, and if it is not important information, the process proceeds to step S40, and if it is important information, an operation (for recording and reproduction) It is determined whether or not it is in the middle (S44, S45). If it is not in operation, data writing (external) information to the recording medium is performed (S46). Here, it is determined whether or not there is a command (operation start command) for starting the recording or reproducing operation of the audio signal (S
47) If there is an operation start command, the operation of writing the data of the (external) information to the recording medium is interrupted, and the operation (recording or reproduction) for the audio signal is started (S49). Move to step S50. If there is no operation start command, the writing is continued unless the writing in step S46 is completed, and when the writing is completed, the operation proceeds to intermittent operation step S40 (S47).

If the operation is being performed in step S45 or the operation is started in step S49, all input information from the outside is stored and then recorded in the recording medium, or if some information is input. In the case of batch recording according to whether the write operation is performed one by one (whether or not to perform batch recording, S50), data is stored in the memory 6 until the end of the input information (S51, S52). When the storage is completed, it is determined whether or not it is in operation (S53), and if it is not in operation, information data is written to the recording medium (S5).
4). Here, it is judged whether or not there is an instruction (operation start instruction) for starting the recording or reproducing operation of the audio signal (S55), and if there is an operation start instruction, the operation of writing the data of the (external) information to the recording medium The operation (recording or reproduction) for the audio signal is started at the same time as the interruption (S57),
Then, the process proceeds to next step S53. If there is no operation start command, when the writing in step S54 is completed, the operation proceeds to intermittent operation step S40 (S56).

If the batch recording is not performed in step S50, it is judged whether or not it is in operation (S60), and if it is in operation, the storing operation to the memory 6 is performed (S61). Data is written (S6
2). Here, it is judged whether or not there is a command (operation start command) for starting the recording or reproducing operation of the audio signal (S63), and if there is the operation start command, the data writing operation of the (external) information to the recording medium At the same time, the operation (recording or reproduction) targeting the audio signal is started at the same time (S66),
Then, the process proceeds to next step S60. If there is no operation start command, data is written to the recording medium until the writing in step S62 is completed (S64), and if there is remaining data, the process returns to step S60, and if there is no remaining data, intermittent operation is performed. The operation moves to step S40 (S65). In the above description, the disk 1 is used as an example of the recording medium, but a memory may be used.
Even when a memory is used, the same operation and effect can be obtained by performing the above operation.

Ninth Embodiment As another example of the embodiment according to the present invention, when information is input from the outside during reproduction of sound, the area of the memory 6 used when reproducing the sound data is divided into a part thereof. An embodiment in which information is stored will be described. Hereinafter, the operation in such a case will be described in detail with reference to FIGS.

FIG. 18 (a) is a diagram showing an example of how the memory area is divided within the area of the memory 6, and when no (external) information is input from the information input / output terminal 19, d0
All areas from 1 to d2 are used as audio data areas for reproducing audio data. When information is input from the information input / output terminal 19, the input information data is stored in the information data area of d1 to d2 of the memory 6, for example, and d0
The audio data read from the disk 1 is stored in the audio data area in the areas from to d1. Thereafter, (external) information input from the information input / output terminal 19 is stored and held in the information data area d1 to d2 without storing audio data, and the portion d0 to d1 of the memory 6 is used. Play audio data. With this configuration, the information input / output terminal 19 can be provided without newly providing a memory or the like for information data.
Information input from can be temporarily stored.

Of course, in addition to the memory 6, a memory or the like is further provided, and the information input / output terminal 19 is provided by using this provided memory.
The (external) information input from may be stored and held. This makes it possible to store and hold (external) information input from the information input / output terminal 19 even if the entire area of the memory 6 is filled with voice data. ((External) information input from the information input / output terminal 19 can be stored and held regardless of the usage state of the memory 6.) Further, as shown in FIG. 18B, d0 to d1 are the information data area, and d1 is the information data area. To d2 in the voice data area,
The area of the memory 6 may be divided and assigned with the information data areas d2 to d3.

Further, it is needless to say that the areas of the memory 6 may be divided and assigned, with d0 to d1 being the audio data area, d1 to d2 being the information data area, and d2 to d3 being the information data area. Of course, according to how the audio data area in the memory 6 at the time of input of information from the outside is arranged, the memory 6
It is sufficient to appropriately allocate the empty area in the information data area.

The information stored in the information data area of the memory 6 may be read out as it is via the data encoder / decoder 18, or may be written in a predetermined area of the disc 1 as described in the above-mentioned embodiment. But it's okay.

Embodiment 10 FIG. As another example of the embodiment according to the present invention, the information input / output terminal 19 is used during recording voice.
An embodiment will be described in which, when more (external) information is input, the area of the memory 6 used when recording audio data is divided and the information is stored in a part thereof. The operation in such a case will be described below with reference to FIG.
This will be described in detail with reference to FIG.

FIG. 18 (a) is a diagram showing an example of how the areas of the memory 6 are divided. The information input terminal 19 (external)
When no information is input, all areas from d0 to d2 are used as an audio data area for recording audio data. If (external) information is input from the information input / output terminal 19, the input information data is stored in, for example, the information data area d1 to d2 of the memory 6, and the audio data to be written to the disk 1 in the audio data area d0 to d1. Store the data. After that, in the area from d1 to d2, the information data input from the information input / output terminal 19 is stored and held without storing the audio data, and the portion from d0 to d1 of the memory 6 is used to store the audio data. Recording on the disc 1 is performed. According to this structure, the information input from the information input / output terminal 19 can be temporarily stored and held without newly providing a memory or the like.

Of course, a memory or the like is provided in addition to the memory 6, and the information input / output terminal 1 is used by using the provided memory.
The (external) information input from 9 may be stored and held. This makes it possible to store and hold (external) information input from the information input / output terminal 19 even if the entire area of the memory 6 is filled up with audio data in terms of capacity. (The information input from the information input / output terminal 19 can be stored and held regardless of the usage state of the memory 6.) Further, as shown in FIG. 18B, d0 to d1 are information data areas, and d1 to d2. Up to the voice data area,
The area of the memory 6 may be divided and assigned with the information data areas d2 to d3.

Further, it is needless to say that the areas of the memory 6 may be divided and assigned with the audio data area from d0 to d1, the information data area from d1 to d2, and the information data area from d2 to d3. Instead, the empty area in the memory 6 may be appropriately allocated to the information data area according to how the audio data area in the memory 6 at the time of input from the information input / output terminal 19 is arranged.

The information stored and held in the information data area of the memory 6 may be read as it is through the data encoder / decoder 18, or for example, a predetermined area of the disk 1 as described in the above embodiment. You can write it in. In the above description, the disk 1 is used as an example of the recording medium, but a memory may be used. Even when a memory is used, the same operation and effect can be obtained by performing the above operation.

Embodiment 11 FIG. As another example of the embodiment according to the present invention, the type of information input from the outside is determined, and only the selected type of information is recorded in the memory 6,
If new information is input with the same type of information,
An embodiment in which old information recorded in the memory 6 is replaced will be described.

The information data in the description of the embodiments here is, for example, when applied to an on-vehicle information device, information on traffic jams and accidents from outside, information on parking lot vacancy, etc. When the MD system is used as an external storage device such as a media personal computer, it is data such as the result of calculation while displaying images and outputting audio. When these information data are input from the information input / output terminal 19, only necessary information data may be recorded and replaced with the latest information data. Hereinafter, the operation in such a case will be described in detail with reference to FIGS.

The information recorded in the information data area is managed by an information management table as shown in FIG. 16, for example. In this information management table, types of all recorded information existing on the memory 6, start address, end address, recording time, rank (priority or importance)
And the like are stored in an area such as a U-TOC on the memory. Here, the rank information represents the degree of importance or priority of the recorded information, and when the capacity of the information data area is full, it is basically replaced in order from the lowest rank. belongs to.

When information is input from the information input / output terminal 19, the data encoder / decoder 18 selects only the necessary information that has been set in advance. For example, when the traffic jam information, the accident information, and the parking lot availability information are input, the traffic jam information and the accident information are set in advance as necessary information, and only the traffic jam information and the accident information are transferred to the memory controller 5. , Parking lot information is not transferred.

The memory controller 5 judges the type and recording time of the information currently stored in the memory 6 from the management table of the information stored in the memory 6, and the transferred information is stored in the memory 6. If the information and the type are the same, the information is replaced with the newly input information and the management table is updated with the latest data. Also, from the address information of the management table, calculate the total information amount of the stored information (actual information amount or number of required sectors),
If the information data area prepared in advance is full in capacity, the information stored in it is basically erased with the lowest priority, and the erase priority is set according to additional conditions. You may decide.

For example, the erasing order is set in the order of the lowest priority and the oldest recording time, or the lowest priority and the shortest access distance, and based on the erasing order, The input information is stored in the memory 6 and the management table is also updated.

In the above first to eleventh embodiments, the explanation has been made on the basis of the audio signal (audio data) and the information signal (information data) input / output from the information input / output terminal. However, the audio signal (audio data) may be, for example, an image signal (image data) or a very general signal (data). The information signal (information data) may be a voice signal (voice data) or an image signal (image data). That is, the above-described embodiment can be applied to a recording / reproducing apparatus in which the first signal (first data) and the second signal (second data) can generally exist.

Further, the A / D converter 8,
Although the input to the ATRAC encoder / decoder is performed using the D / A converter 10, a digital signal may be directly exchanged as a signal form (A / D converter 8, D
A system configuration without using the / A converter 10 may be used).

Also, the MD disk 1 is used as a recording medium.
Although the embodiment has been described by taking (an information recording medium using a magneto-optical effect) as an example, the recording medium is not necessarily limited to the MD disc, and a rewritable recording medium such as a phase change type optical disc or a magnetic disc. Any system may be used, as long as it is a system including a semiconductor memory or the like.
The system is not necessarily limited to.

[0120]

According to the first aspect of the present invention, the signal (information) such as the voice, which is the first signal, is input to the signal input means without interruption by using one system. The second signal (information) can be written in the recording medium.

According to the second invention, since the disk is used as the recording medium of the recording apparatus according to the first invention, the recording having the recording medium excellent in the portability of the data for recording the second signal is carried out. The device can be obtained.

According to the third invention, since the memory is used as the recording medium of the recording apparatus according to the first invention, the recording apparatus excellent in data processing speed can be obtained.

According to the fourth invention, since the recording area dedicated to the second signal is provided in the recording medium of the recording apparatus according to the first invention, the recording apparatus which can easily record the second signal is provided. Obtainable.

According to the fifth invention, since the recording area according to the fourth invention is set in the sub-data sector, the recording of the first signal is not interrupted by one system, and the second signal is recorded.
It is possible to obtain a recording device that can coexist with the first signal recording area with the first signal.

According to the sixth invention, since the recording area according to the fourth invention is set to a plurality of continuous clusters, continuous recording of the first signal can be performed without interruption in one system. It is possible to obtain a recording device that can easily reproduce the signal No. 2 described above.

According to the seventh invention, since the recording areas according to the fourth invention are set to clusters dispersed in cluster units, the second signal is recorded in the vicinity of the cluster on which the first signal recording is performed. To provide a recording device in which the cluster for recording the second signal can be easily accessed from the cluster where the first signal is recorded and the second signal can be easily located. You can

According to the eighth invention, since the recording apparatus according to the first invention is provided with the information selecting means for selecting the type of the second signal, only the signal having the necessary information is selected and recorded. It is possible to obtain a recording device that can

According to the ninth invention, since the information selecting means for selecting the type of the second signal in the recording apparatus according to the eighth invention has the data table for selecting the type, the type selecting is quick. It is possible to obtain a recording device that can

According to the tenth invention, the data table has priority information in the information selecting means for selecting the type of the second signal in the recording apparatus according to the eighth invention,
Since the second signal is recorded based on this priority information,
It is possible to obtain a recording device that can always record the latest information.

According to the eleventh invention, it is possible to obtain a reproducing apparatus capable of reproducing the second signal without interrupting the reproduction of the first signal with one system.

According to the twelfth invention, the second information input from the outside is continuously stored during continuous input of information such as voice without interrupting recording of information such as voice in one system. It is possible to obtain a recording / reproducing device that can be stored in the means.

According to the thirteenth invention, for storing the second signal inputted from the signal input means during the recording operation or the reproducing operation of the first signal in the recording / reproducing apparatus according to the twelfth invention. By having the storage means, it is possible to obtain the recording / reproducing apparatus capable of recording the second signal on the recording medium without stopping the recording / reproducing operation of the first signal.

According to the fourteenth invention, the storage means in the recording / reproducing apparatus according to the thirteenth invention is configured to be shared between the first signal and the second signal. It is possible to obtain a recording / reproducing apparatus that does not require a new storage means.

[Brief description of drawings]

FIG. 1 is a block diagram showing an outline of a recording / reproducing apparatus according to a first embodiment.

FIG. 2 is a flowchart showing an outline of a recording operation of the recording / reproducing apparatus according to the first embodiment.

FIG. 3 is a flowchart showing an outline of a reproducing operation of the recording / reproducing apparatus according to the first embodiment.

FIG. 4 is a block diagram showing details of the recording / reproducing apparatus according to the first embodiment.

FIG. 5 is a flowchart showing details of a recording operation of the recording / reproducing apparatus according to the first embodiment.

FIG. 6 is an explanatory diagram showing a data format of the MD system.

FIG. 7 is an explanatory diagram for explaining an information data recording operation of the recording / reproducing apparatus according to the second embodiment.

FIG. 8 is an explanatory diagram showing a data structure of a memory 6 in the recording / reproducing apparatus according to the second embodiment.

FIG. 9 is an explanatory diagram showing a data structure in the disc 1 of the recording / reproducing apparatus according to the second embodiment.

FIG. 10 is an explanatory diagram for explaining an information recording operation of the recording / reproducing apparatus according to the third embodiment.

FIG. 11 is an explanatory diagram showing a data format in the disc 1 of the recording / reproducing apparatus according to the fourth embodiment.

FIG. 12 is an explanatory diagram for explaining an information recording operation of the recording / reproducing apparatus according to the fifth embodiment.

FIG. 13 is an explanatory diagram showing a cluster configuration in the recording / reproducing apparatus according to the sixth embodiment.

FIG. 14 is an explanatory diagram for explaining an information recording operation of the recording / reproducing apparatus according to the seventh embodiment.

FIG. 15 is a block diagram showing another configuration example of the recording / reproducing apparatus according to the ninth embodiment.

FIG. 16 is an explanatory diagram showing an information management table in the recording / reproducing apparatus according to the eighth embodiment.

FIG. 17 is a flowchart showing details of the recording operation of the recording / reproducing apparatus according to the eighth embodiment.

FIG. 18 is an explanatory diagram showing a division state of the memory 6 of the recording / reproducing apparatus according to the ninth embodiment.

FIG. 19 is a block diagram showing an outline of a conventional recording / reproducing apparatus (MD system).

FIG. 20 is a block diagram showing details of a conventional recording / reproducing apparatus (MD system).

FIG. 21 is an explanatory diagram for explaining an audio reproducing operation of a conventional recording / reproducing apparatus (MD system).

FIG. 22 is an explanatory diagram for explaining a sound recording operation of a conventional recording / reproducing apparatus (MD system).

[Explanation of symbols]

1 disk, 4 EFM ACIRC encoder / decoder, 5 memory controller, 6 memory, 9 audio input terminal, 11 audio output terminal, 12 optical head, 1
6 servo signal processing circuit, 17 CPU, 18 data encoder / decoder, 19 information input / output terminal.

Claims (14)

[Claims] 1. A signal for inputting a second signal in a recording device having a recording medium and an access unit for performing an intermittent access operation targeting at least the first signal with respect to the recording medium. A configuration is provided in which the input means is provided, and the second signal input to the signal input means is recorded in the recording medium in accordance with the operating state of the access means performed with respect to the first signal. Characteristic recording device. 2. The recording apparatus according to claim 1, wherein the recording medium is a disc. 3. The recording apparatus according to claim 1, wherein the recording medium is a memory. 4. The recording apparatus according to claim 1, wherein a recording area dedicated to the second signal is provided on the recording medium. 5. The recording apparatus according to claim 4, wherein a recording area dedicated to the second signal is provided in the sub data sector. 6. The recording apparatus according to claim 4, wherein the recording area dedicated to the second signal is formed by a plurality of continuous clusters. 7. The recording apparatus according to claim 4, wherein the recording area dedicated to the second signal is formed by clusters dispersed in cluster units. 8. The recording apparatus according to claim 1, further comprising information selecting means for selecting a type of the second signal. 9. The recording apparatus according to claim 8, wherein the information selecting means has a data table for selecting the second signal. 10. The recording apparatus according to claim 9, wherein the data table has priority information, and the second signal is selected based on the priority information. 11. A reproducing apparatus having reproducing means for reproducing a first signal and a second signal on a recording medium, comprising signal output means for outputting a second signal, A reproducing apparatus configured to reproduce the second signal from the recording medium in accordance with the reproducing operation of the reproducing unit for the signal No. 1. 12. A recording / reproducing apparatus having a recording medium and a recording / reproducing device for intermittently performing a recording operation or a reproducing operation targeting at least the first signal on the recording medium, the second signal. Signal input means for inputting the second signal, the second signal input to the signal input means in accordance with an operating state of the recording / reproducing means for the first signal.
A recording / reproducing apparatus having a structure for recording the signal of 1. in the recording medium. 13. A storage means for storing a second signal is provided, and when information is input from the signal input means during an operation period of the recording / reproducing means, the second signal is stored in the storage means. 13. The recording / reproducing apparatus according to claim 12, wherein the second signal is recorded on a recording medium according to the operating state of the recording / reproducing means. 14. The recording / reproducing apparatus according to claim 13, wherein the storage means is shared between the first signal and the second signal.