JPH07153238A - Information recording and reproducing device - Google Patents

Abstract

PURPOSE:To efficiently utilize a recording medium by storing data dispersed on the recording medium once in a storage means, scanning an area of the recording medium for the purpose of relisting in accordance with reproducing order and recording the data by data relisting means. CONSTITUTION:A memory control device 5 is controlled by a system control microcomputer 9, and TOC information is read out of a shockproof memory 6, and the position of a recordable area on an MD 1 is recognized, and then a desired recordable area is scanned by controlling a servo circuit 10. Under control of the microcomputer 9, a head is driven based on an output signal of an encoder-decoder/ signal processing circuit 4, and a laser of an optical pickup 2 is driven by an output of an RF amplifier 3 to record data on the MD 1. Upon completion of recording operation, the memory control device 5 is controlled by the microcomputer 9 to rewrite the TOC information in the memory 6 and also the TOC information of the MD 1, and the rewritten information is utilized as the latest TOC information for managing the data recorded on the MD1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses data recorded on a recording medium and a recordable area as index information for TO.
Controlled by C (Table Of Contents) information, the speed of recording data on the recording medium is faster than the speed of inputting data from the outside, and the speed of reading data from the recording medium is higher than the speed of outputting data to the outside. The present invention relates to an information recording / reproducing device.

[0002]

2. Description of the Related Art In an information recording / reproducing apparatus such as an MD (mini disk) apparatus, input data is time-axis compressed and recorded on an MD which is a recording medium, and at the time of reproduction, compressed data read from the MD is used as an original. The time axis is expanded to the state of, the speed of recording data to the recording medium is faster than the speed of inputting data from the outside, and the speed of reading data from the recording medium is also higher than the speed of outputting data to the outside. Is also fast. Therefore, such an MD device is provided with a shock proof memory which is a speed difference adjusting memory in order to absorb the speed difference at the time of data transfer.
The speed difference is absorbed by temporarily storing the data read from the MD or the data input from the outside in the shock proof memory and outputting the data in the order of storage. Further, the shock proof memory absorbs the speed difference and also has a role of preventing interruption of recording / reproduction during a search or due to disturbance such as vibration, and a semiconductor memory is used.

Further, in the MD device, the data recorded in the MD and the recordable area are managed by TOC information which is index information, and in this TOC information, one data is a plurality of recording areas of the MD. Even if the data is divided into parts and recorded, they can be reproduced in order.

For example, an example of the data arrangement will be described with reference to FIGS. 2 and 4B which are explanatory views of the present invention. In the case of FIG. 2A, the first music piece is TNO. 1 (1), TNO.
1 (2), TNO. It is in a state of being recorded separately in three areas 1 (3), and is reproduced with an audio output image as shown in FIG. Further, FIG. 4B shows a state in which the recordable area is divided into a plurality of areas. In the figure, TNO. Indicates the song number, FRA indicates the recordable area, and the numbers in parentheses indicate the connection of the same song or the connection of the recordable area from the beginning.

That is, in the conventional MD device,
The management of the recording area on the MD is entirely done by the TOC information, and no means for rearranging the data once recorded is arranged after recording.

[0006]

However, although it is possible to manage the distributed and recorded data by using the TOC information as described above, the data arrangement shown in FIG. If one piece of music is recorded separately in three areas, one piece of music is reproduced in the three areas. Therefore, it is necessary to repeat the search during reproduction, and the search time becomes long. If the recordable area is divided in the data arrangement as shown in FIG. 4B, when a piece of music, which is a large amount of data, is recorded, the single chunk of data is divided into a plurality of areas. It must be recorded, and the number of searches and the search time also become long during recording. If the number of searches and the search time during playback / recording become long, the amount of data stored in the shock proof memory will decrease, and it will not be possible to effectively prevent interruptions in recording / playback due to external disturbances such as vibrations, and skipping of sounds will occur. There is a problem such as an increased risk of occurrence of.

Furthermore, when the data amount of TOC information that can be recorded on the recording medium is fixed (for example, in MD, TOC information can be recorded only up to 255 of the area on the recording medium), the data recording location and the recordable area are recorded. When the data is distributed on the medium, the amount of TOC information data increases, and even though the data recording capacity remains on the recording medium, T
Since OC information cannot be recorded, new data cannot be recorded, which causes a problem that the recording medium cannot be used efficiently.

Therefore, the information recording / reproducing apparatus of the present invention has been made in view of the above-mentioned problems, and its purpose is to optimize the data arrangement by rearranging the data already recorded on the recording medium to perform the recording. It is to reduce the search time and the number of searches during reproduction to avoid the risk of sound skipping and improve the utilization efficiency of the recording medium.

[0009]

In order to solve the above-mentioned problems, an information recording / reproducing apparatus according to a first aspect of the present invention manages data recorded on a recording medium and a recordable area by index information, In the information recording / reproducing apparatus, the speed of recording the data on the recording medium is higher than the speed of inputting the data from the outside, and the speed of reading the data from the recording medium is higher than the speed of outputting the data to the outside. First, the dispersed data is temporarily stored in the memory of the storage means, the area on the recording medium where the data is moved to be rearranged according to the reproduction order is searched, and the data in the memory is recorded in the searched area. Data rearrangement means is provided.

In order to solve the above problems, an information recording / reproducing apparatus according to a second aspect of the present invention manages data recorded on a recording medium and a recordable area by index information,
In an information recording / reproducing apparatus, a recording unit records data on a recording medium at a speed faster than an external data input speed, and a data reading speed from a recording medium is faster than an external data output speed. The data dividing the data is temporarily stored in the memory of the storage means, the area on the recording medium where the data is moved to make the divided recordable area continuous is searched, and the data in the memory is recorded in the searched area. A second data rearranging means is provided.

In order to solve the above problems, the information recording / reproducing apparatus according to a third aspect of the present invention is the information recording / reproducing apparatus according to the first or second aspect, wherein the first and second data rearranging means are While the reproduction data read from the recording medium and stored in the speed difference adjusting memory is stored in the moving data holding memory as data to be moved, while the data is being output from the speed difference adjusting memory to the outside, The moving area is searched, the data in the moving data holding memory is recorded on a recording medium, and the data is rearranged.

In order to solve the above-mentioned problems, an information recording / reproducing apparatus according to a fourth aspect of the present invention is the information recording / reproducing apparatus according to the first or second aspect, wherein the first and second data rearranging means are While the reproduction data read from the recording medium and stored in the speed difference adjusting memory is output from the speed difference adjusting memory to the outside, the data to be moved is searched for on the recording medium and the moving data is searched. It is characterized in that the data is rearranged by storing it in a holding memory, searching for a moving area, recording the data in the moving data holding memory on a recording medium, and rearranging the data.

In order to solve the above-mentioned problems, an information recording / reproducing apparatus according to a fifth aspect of the present invention is the information recording / reproducing apparatus according to the first or second aspect, wherein the first and second data rearranging means are While the data to be written to the recording medium is being fetched to the speed difference adjustment memory from the outside, the data to be moved is searched from the recording medium and stored in the moving data holding memory, and the moving area is searched. , Recording the data in the memory for holding the moving data on a recording medium,
It is characterized by rearranging the data.

[0014]

According to the structure of claim 1, the first data rearranging means temporarily stores the data dispersed on the recording medium in the memory of the storage means, and rearranges the data so as to rearrange it in accordance with the reproduction order. Search the area of the moving recording medium,
By recording the data in the memory in the searched area,
Since the data dispersed on the recording medium is rearranged in accordance with the reproduction order, one data is recorded in one area on the recording medium in a lump. As a result, it is not necessary to repeat the search during reproduction, and the search time is shortened. As a result, it is possible to efficiently prevent interruption of reproduction due to disturbance such as vibration. Further, since one data is recorded in one block, the data amount of TOC information also decreases, and new data is recorded because TOC information cannot be recorded even though the data recording capacity remains on the recording medium. It is possible to avoid the situation of being unable to do so and use the recording medium efficiently.

According to the structure of claim 2, the second data rearranging means temporarily stores the data dividing the recordable area in the memory of the storage means so that the divided recordable areas are continuous. , The data on the recording medium is rearranged by searching the area on the recording medium where the data is moved and recording the data in the memory in the searched area.
The recordable area is formed continuously. As a result, it is not necessary to repeat the search when recording data, and the search time is shortened. As a result, it is possible to efficiently prevent interruption of recording due to disturbance such as vibration. Furthermore, since the recordable area becomes one lump, the data amount of TOC information also decreases, and TOC information cannot be recorded even though the data recording capacity remains on the recording medium.
It is possible to avoid the situation that new data cannot be recorded and to efficiently use the recording medium.

According to the third aspect of the present invention, the first or second data rearranging means stores the reproduction data read from the recording medium and stored in the speed difference adjusting memory as the movement data for holding the movement data. The data is stored in the memory. While the data is being output from the speed difference adjustment memory, the moving area is searched, the data in the moving data holding memory is recorded on the recording medium, and the data is rearranged. Therefore, during data playback, you can rearrange the data being played back according to the playback order without interrupting the output of data to the outside, or arrange the data being played back so that the recordable area is continuous. Can be changed.

According to the fourth aspect of the present invention, the reproduction data read from the recording medium and stored in the speed difference adjusting memory is read from the speed difference adjusting memory by the first or second data rearranging means. While the data is being output to, the data to be moved is searched from the recording medium and stored in the moving data holding memory, the moving area is searched, and the data in the moving data holding memory is recorded on the recording medium. Since the data is rearranged, the data different from the data being reproduced can be rearranged according to the reproduction order of the data during the data reproduction without interrupting the data output to the outside, or Data different from the data being reproduced can be rearranged so that the recordable areas are continuous.

According to the fifth aspect of the present invention, the first or second data rearranging means moves from the recording medium while the data to be written in the recording medium is being taken into the speed difference adjusting memory. Data is searched for and stored in the moving data holding memory, the area to be moved is searched, the data in the moving data holding memory is recorded on the recording medium, and the data is rearranged. During,
Without interrupting the data recording operation from the outside, rearrange the data recorded on the recording medium according to the reproduction order, or make the data recorded on the recording medium continuous in the recordable area. Can be rearranged.

[0019]

【Example】

[Embodiment 1] The following will describe one embodiment of the present invention with reference to FIGS. 1 to 6.

As shown in FIG. 1, a mini disk (MD) device as an information recording / reproducing device of the present embodiment mainly comprises a recording medium MD1 and an optical disk for writing and reading audio data to and from the MD1. A pickup 2, an RF amplifier 3 for amplifying the read signal, an encoder / decoder / signal processing circuit 4, a shock proof memory 6 for temporarily storing data, and a shock proof memory controller (hereinafter, referred to as a memory controller). Name)
5, voice expansion / compression circuit 7, and D / A converter 8a
A conversion circuit 8 including an A / D converter 8b, a system control microcomputer (hereinafter referred to as a system control microcomputer) 9 as control means for performing various controls, a servo circuit 10, and a driver circuit 11. Spindle motor 12, feed motor 13,
A power ON / OFF circuit 14, a head drive circuit 15,
The recording head 16, a voice output terminal 17, a voice input terminal 18, and a moving data holding memory 19 are provided.

According to the above configuration, during reproduction, the spindle motor 12 driven by the driver circuit 11 drives the MD1 to rotate, and the feed motor 13 driven by the driver circuit 11 causes the optical pickup 2 to move in the radial direction of the MD1. The audio data recorded in the MD 1 is read by the optical pickup 2. The audio data read from the pickup 2 is the RF amplifier 3
Is amplified in the above and is sent to the encoder / decoder / signal processing circuit 4.

The RF amplifier 3 also generates a servo control signal such as a focus error signal or a tracking error signal based on the audio data and outputs it to the servo circuit 10. The servo circuit 10 controls the driver circuit 11 so as to apply focus, tracking, and spin servos by the servo control signal from the RF amplifier 3 and the control signal from the system control microcomputer 9. Then, the driver circuit 11
Drives the optical pickup 2, the feed motor 13, and the spindle motor 12 based on the control signal from the servo circuit 10.

The encoder / decoder / signal processing circuit 4 demodulates the signal amplified by the RF amplifier 3, performs signal processing such as error correction, and then sends the signal to the memory controller 5. The memory controller 5 writes the signal sent from the encoder / decoder / signal processing circuit 4 into the shock proof memory 6. In the shock proof memory 6, a TO area other than voice is separately provided in addition to the voice data recording area.
An area for storing C information is provided, and MD1
When is inserted into the device, the TOC information recorded in the MD1 is immediately stored in a predetermined area of the shock proof memory 6 along the same path as that of the voice data.

The memory controller 5 reads out the required TOC information from the shock proof memory 6 in response to the request from the system control microcomputer 9 and sends it to the system control microcomputer 9. The system control microcomputer 9 controls this system based on the TOC information and reads out necessary data from the MD1. The memory controller 5 reads the data stored in the shock proof memory 6 and sends it to the audio decompression / compression circuit 7. The voice decompression / compression circuit 7 performs time-axis decompression of the transmitted data according to a predetermined format by an audio decompression circuit (not shown) to release the compression processing, and the D /
Send to the A converter 8a. The D / A converter 8a converts the time-axis expanded audio data into an analog audio signal. This analog audio signal is output to the outside from the output terminal 17.

Further, the system control microcomputer 9
Controls the power ON / OFF circuit 14 to drive the driver circuit 11, the optical pickup 2, the RF amplifier 3, and the servo circuit 1.
0, and supplies or interrupts operating power to the encoder / decoder / signal processing circuit 4.

Here, FIG. 2 shows an example of the arrangement of the recording data and the reproducing operation in the MD 1. TNO. Indicates the song number, and the numbers in parentheses indicate the connection of the same song.
That is, in the case of FIG. 2A, the first song is TNO. 1
(1), TNO. 1 (2), TNO. It is recorded separately in three areas 1 (3), and at the time of reproduction, it is shown in FIG.
As in the audio output image shown in (1), one song is reproduced in three areas. Therefore, the reproduction is performed by repeating the reading of data from the MD1 and the search. At this time, MD
The difference between the read speed from 1 and the output data rate of the expanded audio signal (the data read speed from MD1 is approximately 4.257 times the output speed of the audio data, provided that the link data for each reference unit of data is Since the actual voice compression is about 1 / 4.8), it is absorbed by the shock proof memory 6 and the voice signal being searched is interrupted by storing the data in the shock proof memory 6. It corresponds.

On the other hand, at the time of recording by the above MD device, the A / D converter 8b in the conversion circuit 8 is inputted through the audio input terminal 18.
The analog voice signal input to is converted into a digital voice signal and then sent to the voice decompression / compression circuit 7. A voice compression circuit (not shown) in the voice decompression / compression circuit 7
Performs about 1 / 4.8 data compression on the digital audio signal based on MD information compression technology called ATRAC, and then sends it to the memory controller 5.

The memory controller 5 writes the received signal in the shock proof memory 6. The memory controller 5 reads the data stored in the shock proof memory 6 under the control of the system control microcomputer 9, and the encoder / decoder / signal processing circuit 4
Send to. In the encoder / decoder / signal processing circuit 4,
Modulation, addition of an error correction code, and the like are performed on the read data.

The system control microcomputer 9 controls the memory controller 5, and the shockproof memory 6
The TOC information stored in the predetermined area is read, the position of the recordable area on the MD1 is recognized based on the TOC information, and the servo circuit 10 is controlled to search for a desired recordable area. After this search, under the control of the system control microcomputer 9, the head drive circuit 15 drives the recording head 16 based on the output signal of the encoder / decoder / signal processing circuit 4, and the optical signal is output based on the output signal of the RF amplifier 3. A laser circuit (not shown) of the pickup 2 is driven, and a portion of the MD 1 to which a magnetic field is applied is irradiated with a laser beam stronger than that at the time of reproduction, whereby data is recorded on the MD 1.

When the recording operation to the desired recordable area is completed, the system control microcomputer 9 controls the memory controller 5 to rewrite the TOC information stored in the shock proof memory 6 and the TOC information of the MD1, and thereafter. By using this as the latest TOC information, the data recorded in the MD 1 is managed.

Next, the MD1 will be described. MD
The TOC information indicating the data arrangement on 1 is schematically shown in FIG. FRA indicates the address of the table of the TOC area in which the head track address of the recordable area on MD1 is stored. 1-TNO. Two
Reference numeral 55 indicates the address of the table of the TOC area in which the head address on the MD1 of the music number is stored. The start address indicates the start address of each area divided on MD1, and the end address indicates the end address of each area divided on MD1. The track mode shows track information such as whether or not write protection is applied, and the link contains the case where one song is recorded in multiple areas or the recordable area is divided into multiple areas. If it is present, the address of the table of the TOC area in which the leading address of the succeeding area is stored is indicated, and if there is no connection to the next area, "00" is recorded.

FIG. 4 shows a specific example of TOC information of the data arrangement in MD1. The same figure (a)
Shows TOC information of the data arrangement as shown in FIG. In this case, one piece of music is recorded in a plurality of areas, and the recordable area is divided into a plurality of areas.

As described above, with such a data arrangement as it is, the search must be repeated during reproduction and recording, the number of searches and the search time become long, and skipping due to disturbance or the like is likely to occur. In the situation and MD
When the data amount of TOC information that can be recorded in the recording area on 1 is fixed, if the data recording locations and recordable areas are dispersed on MD1, the data amount of TOC information increases, and Although the TOC information cannot be recorded even though the data recording capacity remains, new data cannot be recorded.

Therefore, the system control microcomputer 9 of the present MD apparatus controls the memory controller 5 and uses the shock proof memory 6 as the storage means and the moving data holding memory 19 as the storage means to perform the reproducing and recording operations. The above system is controlled so that the data arrangement on the MD1 is rearranged so as to be optimized in the free time when the operation is not performed. That is, the shock proof memory 6 has a function as the first and second data rearranging means of the present invention.

The data rearrangement process will be described below with reference to FIG. FIG. 10A shows the data arrangement on MD1 before the data rearrangement processing is executed, and FIG.
Shows data movement, and FIG. 7C shows data arrangement on MD1 after data rearrangement processing.

First, the system control microcomputer 9
Searches the area in which the data to be moved is recorded, and when the data to be moved is searched, the optical pickup 2 is driven to read the data (1). The data to be moved is the data of the same song, but the data is dispersed at a plurality of locations, or the recordable area is divided. The read data is the RF amplifier 3,
It is sent to the shock proof memory 6 via the encoder / decoder / signal processing circuit 4 and the memory controller 5. A predetermined amount of data is stored in the shock proof memory 6 (4 Mb in the shock proof memory 6 in MD1).
When the it DRAM is used, the performance time to be output to the outside is about 12 seconds. However, since the data on MD1 is compressed, the time required for reading or recording by the optical pickup 2 is 2.88. When the second) is input, the data reading from the MD 1 by the optical pickup 2 is completed, and the data movement destination is searched (2). The destination of data is a place where distributed data can be arranged according to the reproduction order so that the search time will be minimized at the next reproduction, and the recordable area will be minimized at the next recording. Is searched for in one continuous area. When the destination is searched, the data to be moved is read from the shock proof memory 6, the magnetic field is applied by the recording head 15 via the memory controller 5, the encoder / decoder / signal processing circuit 4, and the RF amplifier 3, and the laser is emitted by the optical pickup 2. Data is recorded by irradiating MD1 with MD (3).

When the data to be moved is read into the shock proof memory 6 (4) and the place to be moved is searched (5), if the data is already recorded at the place to be moved, it is recorded at that place. The present data is read by the optical pickup 2 (6). The read data is sent to the moving data holding memory 19 (having the same capacity as the shock proof memory 6) via the RF amplifier 3, the encoder / decoder / signal processing circuit 4, and the memory controller 5. . After reading the data into the moving data holding memory 19, the contents of the shock proof memory 6 are recorded at that position (7). The data held in the moving data holding memory 19 is moved to the optimum position by the same operation as the data in the shock proof memory 6. At this time, if there is data in a place to be further moved, the data is moved by converting the operations of the shock proof memory 6 and the moving data holding memory 19 described above. That is, this time, the data already recorded in the desired location in the shock proof memory 6 is read (8), and the data in the movement data holding memory 19 is recorded in that position (9). Or later,
By repeating such data movement, the data arrangement shown in FIG. 5A is converted into the data of each song and the recordable area in a lump as shown in FIG. 5C. . As a result, the number of searches and the search time during data recording / reproducing are shortened, so that interruption during data recording / reproducing due to disturbance such as vibration can be efficiently prevented.

During this time, the TOC information in the process of rewriting the TOC information on the MD1 is rewritten and stored in a predetermined area in the shock proof memory 6 at any time, and after the data rearranging operation is completed, The TOC information on MD1 is rewritten to the latest information. As a result, the TOC information also changes from that shown in FIG. 6A corresponding to the data arrangement shown in FIG. 5A to that shown in FIG. 6B corresponding to FIG. 5C. The amount of data in the TOC area also decreases, and the remaining capacity of the TOC area increases. This avoids a situation in which new data cannot be recorded because TOC information cannot be recorded despite the data recording capacity remaining on the MD1.

As described above, in the MD device of the present embodiment, the data recorded in the MD1 is the same song but is dispersed in a plurality of locations, or the data in which the recordable area is divided. , MD1 as it is rearranged so that the recordable area becomes continuous in accordance with the reproduction order.
The data layout recorded in is optimized,
The number of searches and time required for recording are shortened. As a result, it is possible to efficiently prevent interruption during data recording / reproduction due to disturbance such as vibration. By optimizing the data arrangement in this way, the data amount of TOC information also decreases and the capacity of the TOC area increases, so that the data recording capacity remains on the MD1 as in the conventional case. Nevertheless, since the TOC information cannot be recorded, the situation that new data cannot be recorded is avoided, and the MD1
The recording area of can be efficiently used.

[Embodiment 2] Another embodiment of the present invention will be described below with reference to FIGS. 7 and 8. For convenience of explanation, means having the same function as the means shown in the above-mentioned embodiment will be designated by the same reference numeral, and the description thereof will be omitted.

MD as the information recording / reproducing apparatus of this embodiment
The system control microcomputer 9 of the apparatus controls the memory controller 5, and uses the shock proof memory 6 which is a speed difference adjusting memory and the movement data holding memory 19 to output the data from the MD 1 and output the data to the outside. By utilizing the difference from the speed and searching for the movement destination and moving the data during the time caused by this difference, the reproduction data is rearranged without interrupting the reproduction operation during data reproduction. It is like this. In this case, since the operations are simultaneously performed during the reproducing operation, the operability is improved as compared with the case where the operation is performed separately except during the operation.

The data rearrangement process will be described below with reference to FIG. FIG. 10A shows the data arrangement on MD1 before the data rearrangement processing is executed, and FIG.
Shows data movement, and FIG. 7C shows data arrangement on MD1 after data rearrangement processing.

First, the system control microcomputer 9
Drives the optical pickup 2 to read out reproduction data (10). The read data is sent through the above-mentioned route to the shock proof memory 6 and the movement data holding memory 19
Sent to. When a predetermined amount of data is input to the shock proof memory 6, the reading of data from the MD 1 by the optical pickup 2 is completed and the destination of data movement is searched (11). The data transfer destination is searched based on the same criteria as in the first embodiment. When the movement destination is searched, the data to be moved is read from the movement data holding memory 19, and the read data is recorded in the MD1 by the above-mentioned route and operation (12).

The memory controller 5 reads the data from the shock proof memory 6 so that the reproduced sound is not interrupted while the moving destination is searched and recorded, and the read reproduced data is sent to the audio decompression / compression circuit 7. Sent and converted to analog by the D / A converter 8a of the conversion circuit 8,
It is output from the audio output terminal 17. After the recording, the data to be reproduced next is searched (13), and the same operation is repeated. By repeating such data movement, as shown in FIG.
The data arrangement shown in (a) is as shown in FIG.
The song data and the recordable area are converted into a lump. As a result, the number of searches and the search time during data recording / reproducing are shortened, so that interruption during data recording / reproducing due to disturbance such as vibration can be efficiently prevented.

During this time, the TOC information in the process of rewriting the TOC information on the MD1 is rewritten and stored in a predetermined area in the shock proof memory 6 at any time, and after the data rearranging operation is completed, The TOC information on MD1 is rewritten to the latest information. As a result, the TOC information also changes from that shown in FIG. 8A corresponding to the data arrangement shown in FIG. 7A to that shown in FIG. 8B corresponding to FIG. 7C. The amount is reduced, and the recording area of MD1 can be used efficiently.

[Embodiment 3] Another embodiment of the present invention will be described below with reference to FIGS. 9 and 10. For convenience of explanation, means having the same function as the means shown in the above-mentioned embodiment will be designated by the same reference numeral, and the description thereof will be omitted.

MD as the information recording / reproducing apparatus of this embodiment
The system control microcomputer 9 of the apparatus controls the memory controller 5, and uses the shock proof memory 6 which is a speed difference adjusting memory and the movement data holding memory 19 to output the data from the MD 1 and output the data to the outside. By utilizing the difference from the speed and searching for the data to be moved and the movement destination during the time generated by this difference to move the data, during the data reproduction, without interrupting the reproduction operation, The data different from the data being reproduced is rearranged. In this case, since the operations are simultaneously performed during the reproducing operation, the operability is improved as compared with the case where the operation is performed separately except during the operation.

The data rearrangement process will be described below with reference to FIG. FIG. 10A shows the data arrangement on MD1 before the data rearrangement processing is executed, and FIG.
Shows data movement, and FIG. 7C shows data arrangement on MD1 after data rearrangement processing.

First, the system control microcomputer 9
Drives the optical pickup 2 to read out reproduced data (15). The read data is sent to the shock proof memory 6 via the above-mentioned route. When a predetermined amount of data is input to the shock proof memory 6, the reading of data from the MD 1 by the optical pickup 2 is completed, and the head of the data to be moved is searched (16). The data to be moved is selected according to the same criteria as in the first embodiment. When the head is searched, the optical pickup 2 reads (17), the read data is sent to the moving data holding memory 19 through the above-mentioned path, and the moving destination of the data is searched (18). The data transfer destination is also searched based on the same criteria as in the first embodiment. When the movement destination is searched, the data to be moved is read from the movement data holding memory 19 and recorded by the above-mentioned route and operation (19).

The memory controller 5 searches the shock proof memory 6 so that the reproduced sound is not interrupted while the data to be moved is searched, the moved data is read into the moving data holding memory 19, and the moving destination is searched and recorded. Is read, and the read data is sent to the audio decompression / compression circuit 7, converted into an analog signal by the D / A converter 8a of the conversion circuit 8, and output from the audio output terminal 17. After the recording, the data to be reproduced next is searched (20) and the same operation is repeated. By repeating such data movement, the data arrangement shown in FIG. 9A is converted into a piece of music data and a recordable area as shown in FIG. 9C. As a result, the number of searches and the search time during data recording / reproducing are shortened, so that interruption during data recording / reproducing due to disturbance such as vibration can be efficiently prevented.

During this time, the TOC information in the process of rewriting the TOC information on the MD1 is rewritten and stored in a predetermined area in the shock proof memory 6 at any time, and after the data rearrangement operation is completed, The TOC information on MD1 is rewritten to the latest information. As a result, the TOC information also changes from the one shown in FIG. 10A corresponding to the data arrangement shown in FIG. 9A to the one shown in FIG. 10B corresponding to FIG. 9C. Since the amount of data information of the MD1 is reduced, the recording area of the MD1 can be efficiently used.

[Embodiment 4] Another embodiment of the present invention is shown in FIG.
And based on FIG. 12, it demonstrates below. For convenience of explanation, means having the same function as the means shown in the above-mentioned embodiment will be designated by the same reference numeral, and the description thereof will be omitted.

MD as the information recording / reproducing apparatus of this embodiment
The system control microcomputer 9 of the apparatus controls the memory controller 5 and uses the shock proof memory 6 which is a speed difference adjustment memory and the movement data holding memory 19 from the outside than the speed of recording data in the MD 1. The input speed is slow and the data to be moved and the destination are searched during the time when the data is being collected all at once, and the data is moved, so that the recording operation is not interrupted during the data recording. The data different from the data being recorded is rearranged. In this case, since the operations are simultaneously performed during the recording operation, the operability is improved as compared with the case where the operation is performed separately except during the operation.

The data rearrangement process will be described below with reference to FIG.
Will be described with reference to. 7A shows the data arrangement on the MD1 before the data rearrangement processing is performed, FIG. 9B shows the data movement, and FIG. 9C shows the data arrangement on the MD1 after the data rearrangement processing. Is shown.

The audio signal input from the audio input terminal 18 is sent to the A / D converter 8b of the conversion circuit 8 to convert the analog signal into a digital signal and then sent to the audio decompression / compression circuit 7. The voice decompression / compression circuit 7 compresses the data sent by the voice compression circuit to 1 / 4.8 and sends it to the memory controller 5. The memory controller 5 writes the received signal in the shock proof memory 6. By the time a predetermined amount of data is input to the shock proof memory 6 (12 seconds for MD1), the head of the data to be moved is searched (21). If the head is searched, the optical pickup 2 reads it (22 ), After being sent to the memory 19 for holding the moving data through the above-mentioned route, the moving destination of the data is searched (23). The data to be moved and the destination of the data are searched by the same criteria as in the first embodiment. When the destination is searched,
The data to be moved is read from the moving data holding memory 19 and recorded by the above-mentioned route and operation (24). After that, the recordable area is searched, and the data stored in the shock proof memory 6 (data input from the outside) is recorded by the above-described route and operation. By repeating the same operation, the data arrangement shown in FIG. 11A is converted into a piece of music data and a recordable area as shown in FIG. 11C. As a result, the number of searches and the search time during data recording / reproducing are shortened, so that interruption during data recording / reproducing due to disturbance such as vibration can be efficiently prevented.

During this time, the TOC information in the process of rewriting the TOC information on the MD1 is rewritten and stored in a predetermined area in the shockproof memory 6 at any time, and after the data rearrangement operation is completed, The TOC information on MD1 is rewritten to the latest information. As a result, the TOC information also changes from the one shown in FIG. 12 (a) corresponding to the data arrangement shown in FIG. 11 (a) to the one shown in FIG. 12 (b) corresponding to FIG. 11 (c). Also, the data amount of is reduced, and the recording area of MD1 can be efficiently used.

In the MD device of each of the above embodiments,
Data that is the same song but distributed in multiple locations,
The data in which the recordable area is divided is rearranged so that the recordable area becomes continuous in accordance with the reproduction order. It is possible to prevent skipping at the time of data reproduction and reduce the data amount of TOC information just by arranging the data according to the above. Similarly, the data dividing the recordable area is made continuous in the recordable area. It is possible to prevent skipping of sound at the time of recording data and reduce the amount of TOC data by simply rearranging the data.

[0058]

As described above, the information recording / reproducing apparatus according to the first aspect of the present invention temporarily stores the data dispersed in the storage means and the recording medium in the memory of the storage means, and sets the reproduction order. A first data rearranging means for searching an area of the recording medium where the data is moved to be rearranged together and recording the data in the memory in the searched area is provided.

As a result, it is not necessary to repeat the search during reproduction, and the search time is shortened. as a result,
It is possible to efficiently prevent interruption of reproduction due to disturbance such as vibration. Further, since one data is recorded in one block, the data amount of TOC information also decreases, and new data is recorded because TOC information cannot be recorded even though the data recording capacity remains on the recording medium. The present invention has an effect that it is possible to avoid the situation where the recording medium cannot be used and to efficiently use the recording medium.

As described above, the information recording / reproducing apparatus according to the second aspect of the present invention temporarily stores the storage means and the data dividing the recordable area in the memory of the storage means.
A second data rearranging means for searching the area of the recording medium for moving the data so that the divided recordable areas are continuous and recording the data in the memory in the searched area is provided.

As a result, it is not necessary to repeat the search when recording data, and the search time is shortened. As a result, it is possible to efficiently prevent interruption of recording due to disturbance such as vibration. Furthermore, since the recordable area becomes a lump, the amount of TOC information data also decreases, and new data cannot be recorded because TOC information cannot be recorded despite the data recording capacity remaining on the recording medium. It is possible to effectively prevent the use of the recording medium and efficiently use the recording medium.

As described above, the information recording / reproducing apparatus according to a third aspect of the present invention is the information recording / reproducing apparatus according to the first or second aspect, wherein the first and second data rearranging means are recording media. The reproduction data read from the memory and stored in the speed difference adjustment memory is stored in the movement data holding memory as data to be moved, and moved while the data is output from the speed difference adjustment memory to the outside. The area is searched, the data in the moving data holding memory is recorded on the recording medium, and the data is rearranged.

As a result, during data reproduction, the data being reproduced is rearranged according to the reproduction order without interrupting the output of data to the outside, or the data being reproduced is continuously recorded in the recordable area. It has the effect of being able to rearrange.

As described above, the information recording / reproducing apparatus according to a fourth aspect of the present invention is the information recording / reproducing apparatus according to the first or second aspect, wherein the first and second data rearranging means are recording media. While the reproduction data read from the and stored in the speed difference adjustment memory is being output from the speed difference adjustment memory to the outside, the data to be moved is searched for from the recording medium and the movement data holding memory is searched. In the configuration, the area to be moved is searched, the data in the moving data holding memory is recorded on the recording medium, and the data is rearranged.

Thus, during data reproduction, data different from the data being reproduced is rearranged according to the reproduction order of the data without interrupting the output of data to the outside, or the data being reproduced is The different data can be rearranged so that the recordable areas are continuous.

As described above, the information recording / reproducing apparatus according to claim 5 of the present invention is the information recording / reproducing apparatus according to claim 1 or 2, wherein the first and second data rearranging means are recording media. While the data to be written to the speed difference adjustment memory is being fetched from the outside, the data to be moved is searched from the recording medium and stored in the movement data holding memory, the area to be moved is searched, and the movement data is moved. The data in the holding memory is recorded on a recording medium to rearrange the data.

As a result, during data recording, the data recorded on the recording medium can be rearranged according to the reproduction order or the data recorded on the recording medium can be rearranged without interrupting the external data recording operation. It is possible to rearrange so that the recordable areas are continuous.

[Brief description of drawings]

FIG. 1 is a block diagram showing a mini disk device according to an embodiment of the present invention.

FIG. 2A is an explanatory diagram showing a data arrangement on a mini disk provided in the device, and FIG. 2B is an explanatory diagram showing an audio output image in the data arrangement.

FIG. 3 is a TOC showing a data arrangement on the mini disc.
It is explanatory drawing which shows the schematic structure of information.

FIG. 4A is an explanatory diagram showing TOC information,
(B) is an explanatory view showing a data arrangement of the TOC information of (a).

FIG. 5 (a) shows M before performing data rearrangement processing.
FIG. 5 is an explanatory diagram showing a data arrangement on D, FIG. 9B is an explanatory diagram showing data movement, and FIG. 9C is an explanatory diagram showing a data arrangement on MD after data rearrangement processing.

6A is an explanatory diagram showing TOC information corresponding to the data arrangement shown in FIG. 5A, and FIG. 6B is an explanatory diagram showing TOC information corresponding to the data arrangement shown in FIG. 5C. .

7A and 7B show another embodiment of the present invention, in which FIG. 7A is an explanatory diagram showing the data arrangement on the MD before the data rearrangement processing is performed, and FIG. 7B is an explanatory diagram showing the data movement. ,
(C) is an explanatory view showing a data arrangement on the MD after the data rearrangement processing.

8A is an explanatory diagram showing TOC information corresponding to the data arrangement shown in FIG. 7A, and FIG. 8B is an explanatory diagram showing TOC information corresponding to the data arrangement shown in FIG. 7C. .

9A and 9B show another embodiment of the present invention, in which FIG. 9A is an explanatory diagram showing a data arrangement on an MD before performing a data rearrangement process, and FIG. 9B is an explanatory diagram showing a data movement. ,
(C) is an explanatory view showing a data arrangement on the MD after the data rearrangement processing.

10A is an explanatory diagram showing TOC information corresponding to the data arrangement shown in FIG. 9A, and FIG. 10B is an explanatory diagram showing TOC information corresponding to the data arrangement shown in FIG. 9C. .

11A and 11B show another embodiment of the present invention, in which FIG. 11A is an explanatory diagram showing a data arrangement on an MD before performing a data rearrangement process, and FIG. 11B is an explanatory diagram showing a data movement. ,
(C) is an explanatory view showing a data arrangement on the MD after the data rearrangement processing.

12A is an explanatory diagram showing TOC information corresponding to the data arrangement shown in FIG. 11A, and FIG. 12B is FIG. 11C.
3 is an explanatory diagram showing TOC information corresponding to the data arrangement of FIG.

[Explanation of symbols]

1 mini disk (recording medium) 5 memory controller 6 shock proof memory (memory means, memory for speed difference adjustment) 9 system control microcomputer (first data rearranging means / second data rearranging means) 19 for moving data holding Memory (storage means)

Claims (5)

[Claims] 1. A data recorded on a recording medium and a recordable area are managed by index information, the speed of recording the data on the recording medium is faster than the speed of inputting the data from the outside, and the speed of reading the data from the recording medium. In an information recording / reproducing apparatus that is faster than the speed at which data is output to the outside, the storage means and the data dispersed on the recording medium are temporarily stored in the memory of the storage means, and the data is rearranged in accordance with the reproduction order. An information recording / reproducing apparatus, comprising: a first data rearranging means for searching an area on a moving recording medium and recording the data in the memory in the searched area. 2. A data recorded on a recording medium and a recordable area are managed by index information, the speed of recording the data on the recording medium is faster than the speed of the data input from the outside, and the speed of reading the data from the recording medium. In an information recording / reproducing apparatus that is faster than the speed at which data is output to the outside, the storage means and the data dividing the recordable area are temporarily stored in the memory of the storage means, and the data is divided so that the divided recordable areas are continuous. Search the area on the recording medium that moves
An information recording / reproducing apparatus, characterized in that a second data rearranging means for recording data in the memory is provided in the searched area. 3. The first and second data rearranging means stores the reproduction data read from the recording medium and stored in the speed difference adjusting memory in the moving data holding memory as data to be moved. While the data is being output from the speed difference adjusting memory to the outside, the moving area is searched, the data in the moving data holding memory is recorded on the recording medium, and the data is rearranged. The information recording / reproducing apparatus according to claim 1 or 2, characterized in that. 4. The reproduction data read out from the recording medium and stored in the speed difference adjusting memory is output from the speed difference adjusting memory to the outside by the first and second data rearranging means. In the meantime, the data to be moved is searched from the recording medium and stored in the moving data holding memory, the moving area is searched, the data in the moving data holding memory is recorded on the recording medium, and the data is arranged. 3. The information recording / reproducing apparatus according to claim 1 or 2, wherein the information recording / reproducing apparatus is changed. 5. The first and second data rearranging means searches for data to be moved from the recording medium while the data to be written to the recording medium is externally taken into the speed difference adjusting memory. The data is stored in the memory for moving data holding, the area to be moved is searched, the data in the memory holding moving data is recorded on a recording medium, and the data is rearranged. Item 1
Alternatively, the information recording / reproducing apparatus described in 2.