JPH10302390A - Data recording device, data reproducing device, data recording/reproducing device, data recording method, data reproducing method and data recording/ reproducing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce rotation standby time and to improve high-speed random accessability by recording input data in sequence from a sector located in a recording position among sectors in a specified range while giving identification information to divided input data after the completion of seeking and outputting the data to be sequentially reproduced by arraying the data in an original order based on the identification information. SOLUTION: A memory control unit 14 stores compressed encoding data D2 in sequence in a memory 16. At this time, a control unit 15 receives a command C1 specifying track and sector ranges on a disk 2 for writing the encoding data D2. After the completion of seeking, specified sectors are determined in sequence based on a servo signal S3 and issues a data recording control signal S4 immediately after a positive result is obtained. The memory control unit 14 sequentially reads the encoding data D2 by one sector from the memory 16 and sends the data through an ID insertion circuit 21 to a data recording circuit 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Table of Contents] The present invention will be described in the following order.

BACKGROUND OF THE INVENTION Prior Art (FIG. 3) Problems to be Solved by the Invention (FIGS. 4 to 6) Means for Solving the Problems (FIGS. 1 to 3) ) Configuration of image data recording / reproducing apparatus according to this embodiment (FIGS. 1 to 3) (2) Operation and effect of this embodiment (FIGS. 1 to 3) (3) Other embodiments (FIGS. 1 to 3) (Fig. 3) Effect of the invention

[0003]

The present invention relates to a data recording apparatus, a data reproducing apparatus, a data recording / reproducing apparatus, a data recording method,
The data reproducing method and the data recording / reproducing method are preferably applied to, for example, an image data recording / reproducing apparatus.

[0004]

2. Description of the Related Art Conventionally, in a hard disk device,
As shown in FIG. 3, a plurality of tracks 3A, 3B... Are provided concentrically on the recording surface 2A of the disk 2, and these tracks 3A, 3B.
B ...

Each of the tracks 3A, 3B,... Is identified by a track number starting from 0 from the outermost circumference to the innermost circumference of the recording surface 2A of the disk 2, and each of the sectors 4A, 4B,. Is written with identification information such as a track number and a sector number.

Thus, in a data recording / reproducing apparatus using the hard disk device 1 as data recording / reproducing means, at the time of reading / writing data, a target track number or sector number is first specified from the upper controller to the hard disk device 1. .

As a result, in the hard disk device 1, the magnetic head 6 provided at the tip of the movable arm 5 is moved (seeked) over the target tracks 3A, 3B,.
Then, in this state, while reading the identification information at the head of each of the sectors 4A, 4B,..., It waits for the target sectors 4A, 4B,.
.. Starts reading and writing data when it comes around.

[0008]

By the way, in such a hard disk device 1, when data recorded over a plurality of sectors 4A, 4B,... Having a large data amount, such as image data, is read from the disk 2. think about.

In the following description, as shown in FIG. 4, one track of disk 2 is divided into 16 sectors 4A to 4Q, and data to be read is divided into N sectors 4A and N + 15 sectors 4Q in order. (That is, over one round of the track).

In this case, for example, when the magnetic head 6 (FIG. 3) is located slightly before the N-sector 4A at the beginning of the read operation when the seek is completed, as shown in FIG. After that, data can be read out sequentially from the N sector 4A.

On the other hand, after the seek is completed, the magnetic head 6
Is located slightly before the N + 4 sector 4E other than the N sector 4A, as shown in FIG.
After a long rotation wait t, data is read out sequentially from the N sector 4A.

The time T required from the start of the seek to the end of the data readout greatly changes depending on the rotation phase of the disk 2 with respect to the magnetic head 6 after the completion of the seek, and in fact, as shown in FIG. When the magnetic head 6 is located shortest (when the magnetic head 6 is located immediately before the N sector 4A after the seek is completed) and when it is long (after the seek is completed, the magnetic head 6 is located in the area where the servo signal of the N sector 4A is recorded). And when it is located immediately after)
A rotation difference occurs.

On the other hand, for example, even when data to be read is recorded in sectors 4A to 4H which are half of one track from N sector 4A, as shown in FIG. There is a difference of one rotation between the shortest time and the longest time.

As described above, in the conventional hard disk drive 1, the disk 2 may not be immediately read or written due to the rotation phase of the disk 2 with respect to the magnetic head 6 at the time of completion of the seek. It was an evil.

The present invention has been made in view of the above points, and a data recording apparatus, a data reproducing apparatus, a data recording / reproducing apparatus, which can significantly improve high-speed random access performance,
It is intended to propose a data recording method, a data reproducing method, and a data recording / reproducing device.

[0016]

According to the present invention, in a data recording apparatus, a sector located at a position where divided input data of a plurality of designated sectors can be recorded after a seek is completed in a data recording apparatus. And recording means for sequentially recording the divided input data in a specified sector via a recording head by adding identification information to the divided input data.

As a result, the rotation waiting time during the recording operation can be remarkably reduced because the rotation waiting for the first sector among the plurality of designated sectors is not performed.

According to the present invention, in the data reproducing apparatus, after the seek is completed, each divided input data recorded on the disk-shaped recording medium which is sequentially reproduced by the reproducing head is converted into each divided input data. Reproducing means for arranging and outputting in the original order based on the assigned identification information is provided.

As a result, the rotation waiting time during the reproducing operation can be reduced remarkably because the rotation of the first sector of the divided input data in which the divided input data is recorded is not performed. .

Further, according to the present invention, in the data recording / reproducing apparatus, after a seek operation at the time of the recording operation is completed, each of the plurality of designated sectors is sequentially read from the sector at the position where the divided input data can be recorded. Recording means for sequentially assigning the divided input data to the specified sector via a recording head with identification information added thereto, and disk-shaped recording sequentially reproduced by the reproducing head after a seek operation in the reproducing operation is completed. There is provided a reproducing means for arranging the divided input data recorded on the medium in the original order based on the identification information assigned to each divided input data and outputting the original data.

As a result, the first sector of the plurality of sectors specified during the recording operation does not wait for rotation, and the first divided input data of the divided input data during the reproducing operation is Since the rotation of the recorded sector is not performed, the rotation waiting time during the recording operation and the reproducing operation can be significantly reduced.

Further, according to the present invention, in the data recording method, after the seek is completed, the divided input data of the designated plurality of sectors is sequentially arranged from the sector at the position where the divided input data can be recorded. Are sequentially recorded in the designated sectors via the recording head with identification information added.

As a result, the rotation waiting time during the recording operation can be remarkably reduced because the rotation waiting for the first sector among the plurality of designated sectors is not performed.

Further, according to the present invention, in the data reproducing method, after the seek is completed, each divided input data recorded on the disk-shaped recording medium which is sequentially reproduced by the reproducing head is converted into each divided input data. It is arranged and output in the original order based on the assigned identification information.

As a result, the rotation waiting time during the reproducing operation can be reduced remarkably, since the rotation of the first sector of the divided input data in which the divided input data is recorded is not performed. .

Further, according to the present invention, in the data recording / reproducing method, after completion of a seek operation during a recording operation, each of the plurality of designated sectors is sequentially arranged from a sector at a position where divided input data can be recorded. A first step of sequentially assigning identification information to each of the divided input data and sequentially recording them in designated sectors via a recording head;
After the completion of the seek operation during the reproducing operation, the divided input data recorded on the disk-shaped recording medium which is sequentially reproduced by the reproducing head is restored based on the identification information given to each divided input data. And a second step of arranging and outputting in the order of.

As a result, the first sector of the plurality of designated sectors during the recording operation does not wait for rotation, and the first divided input data of the divided input data during the reproducing operation is Since the rotation of the recorded sector is not performed, the rotation waiting time during the recording operation and the reproducing operation can be significantly reduced.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

(1) Configuration of Image Data Recording / Reproducing Apparatus According to the Present Embodiment In FIG. 1, in which parts corresponding to those in FIG. In the recording mode, the input video signal S
1 is digitally converted in an analog-to-digital conversion circuit 11, and the obtained video data D1 is
To send to.

The image compression section 12 converts the supplied video data D1 into, for example, MPEG (Moving Picture Expers Grou).
p) and the like, and sends the obtained coded data D2 to a memory control unit 14 in a data recording / reproducing block unit 13 comprising a hard disk device.

The memory control unit 14 includes a control unit 15
A series of input encoded data D2 is sequentially stored in the memory 16 based on the control signal S2 given by

At this time, the controller 15 sends the encoded data D2 from a higher-level controller (not shown) to which track 3A, 3B (FIG. 3) and which sector 4A, 4B (FIG. 3). In 3), a write command C1 indicating that writing is possible is given. Thus, the control unit 1
Reference numeral 5 designates a disk 2 for which a recording head (not shown) is designated by controlling an actuator (not shown) for driving a recording head via an actuator control unit 18 based on the write command C1. Track 2
A, 2B: Move up (seek).

The result is that the control section 15 reproduces the same tracks 2A, 2B,... As the recording head from the disk 2 by means of a reproducing head provided integrally with and adjacent to the recording head. The servo signal S3 is applied sequentially via the data reproduction circuit 19 and the actuator control unit 18.

After completion of the seek, the control unit 15 determines whether the sectors 4A, 4A,
.. B are any of the sectors 4A, 4B,.
B.... Are sequentially determined, and if a positive result is obtained, the designated plurality of sectors 4A, 4B
The control signal S4, which is a timing signal, is immediately transmitted to the data recording circuit 20 without waiting for the rotation of the first sector 4A of the first sector 4A of the first sector 4A. A read request is sent to the unit 14. Further, the control unit 15 determines whether any of the sectors 4A, 4B
... Each time the servo signal S3 of... Is reproduced by the reproducing head, the data recording circuit 20 sends a read request to the memory control unit 14 in the same manner as described above.

At this time, every time a read request is given from the data recording circuit 20, the memory control unit 14
The coded data D2 stored in the memory 16 is sequentially read out from the memory 16 by one sector in a large unit corresponding to the capacity of each sector of the disk 2, and is read out from the ID insertion circuit 21.
To send to.

The ID insertion circuit 21 provides identification information (ID) for the supplied encoded data D3 for one sector, indicating the order of the encoded data D3 in the series of encoded data D2. Are sequentially added and sent to the data recording circuit 20.

Thus, the data recording circuit 20 performs channel coding, equalizing, and the like on the supplied encoded data D3, and then applies the encoded data D3 to the designated tracks 3A, 3B,... Of the designated disc 2 via the recording head. .. Are recorded in any of the designated sectors 4A, 4B,.

At this time, the control unit 15 controls an actuator (not shown) for driving the recording head via the actuator control circuit 18 based on the servo signal S3 supplied via the actuator control unit 18. Execute tracking control.

On the other hand, in the reproduction mode, the control unit 15 sends a command to the
A, 3B,..., And a read instruction C2 for reading encoded data recorded from any of sectors 4A, 4B,.

In this way, the control unit 15 controls the actuator for driving the reproducing head via the actuator control unit 18 to move (seek) the reproducing head onto the designated tracks 3A, 3B,... Of the disk 2. .

As a result, after the seek is completed, various data recorded on the tracks 3A, 3B,... Of the disk 2 are immediately reproduced by the reproduction head, and this is reproduced data D10.
Is transmitted to the data reproducing circuit 19 as

The data reproducing circuit 19 performs predetermined processing such as equalization and decoding on the supplied reproduced data D10, and extracts the servo signal S3 and the encoded data D11 from the reproduced data D10. The signal S3 is sent to the actuator control unit 18, and the encoded data D11 is sent to the ID detection circuit 22 and the memory control unit 14, respectively.

At this time, the actuator control section 18 executes the tracking control by controlling the reproducing head driving actuator based on the supplied servo signal S3.

The ID detection circuit 22 sequentially detects the above-described identification information added to the supplied encoded data D11, and sends the detection result to the memory control unit 14 as an ID detection signal S5.

Based on the ID detection signal S5, the memory control unit 14 removes identification information of only the specified necessary encoded data D11 and arranges them in a forward dimension order under the control of the control unit 15. While storing in the memory 16,
This is sequentially read out at a predetermined timing, and the coded data D12 thus obtained is sent to the image decompression circuit 23.

The image decompression circuit 23 sequentially decodes the input coded data D12 and sends out the obtained video data D13 to the digital / analog conversion circuit 24. Then, the digital-to-analog conversion circuit 24 converts the input video data D13 into an analog signal, and outputs the video signal S16 in the original signal form thus obtained to the outside.

The image recording / reproducing apparatus 10
In this case, the input video signal S1 can be recorded and reproduced on the hard disk 2.

(2) Operation and Effect of the Embodiment In the above configuration, the image recording / reproducing apparatus 10
In the recording mode, the track 3A whose recording head is designated,
3B... While seeking, after the seek is completed, without waiting for the rotation of the first sector 4A among the plurality of designated sectors 4A, 4B,. Each time the servo signal S3 is reproduced by the reproducing head, the encoded data D2 stored and held in the memory 16 is divided in sector units and read one sector at a time. ,
4B Write in.

On the other hand, in the image recording / reproducing apparatus 10, in the reproducing mode, the tracks 3A and 3B for which the reproducing head is designated are used.
... Seek upward, and after the seek is completed, the first sector 4 of the plurality of designated sectors 4A, 4B.
Without waiting for rotation of A, for example, as shown in FIG. 5C, the sectors 4A, 4B,.
.. Are sequentially and randomly reproduced, and among the obtained reproduced data D10, the designated encoded data D
11 are arranged in order based on the identification information added to each encoded data D11, stored in the memory 16, read out in order, converted into a video signal S6 in the original signal form, and output. .

Therefore, in the image recording / reproducing apparatus 10, in the recording mode and the reproducing mode, after the seek is completed, the sectors 4A, 4B,.
Are sequentially recorded from the sectors 4A, 4B,... Located at positions where data can be recorded or reproduced, and the divided coded data D2 (that is, coded data D3) is sequentially recorded with identification information added thereto, or Specified sector 4A, 4
Since the encoded data D11 recorded in B... Is reproduced, the rotation waiting time t can be remarkably reduced regardless of the phase of the disk 2 after the seek is completed.

In practice, in the image recording / reproducing apparatus 10, for example, when the encoded data D11 to be reproduced is recorded over one track of the disk 2, as shown in FIG. Since the reading of the designated coded data D11 can be started after the rotation waiting, the worst value of the rotation waiting for approximately one rotation of the disk 2 can be improved in comparison with FIG. Can be.

Even when the encoded data D11 to be reproduced is recorded in the sectors 4A, 4B,... Corresponding to a half track of one track of the disk, as shown in FIG. After that, the reading of the specified encoded data D11 can be started.
In comparison with (B), it is possible to improve the waiting time for the rotation of the disk 2 by a half turn at the worst value.

According to the above configuration, in the recording mode, after the seek is completed, the designated sectors 4A, 4B,. 4B... Sequentially encoded data D3
.. Are written with identification information added thereto, and in the playback mode, after the seek is completed, the track 3A is not waited for rotation of the first sector 4A among the plurality of designated sectors 4A, 4B,. , 3B... In the sectors 4A, 4B...
Only the designated encoded data D11 of the obtained reproduced data D10 are arranged in order based on the identification information added to each encoded data D11, stored in the memory 16, and read out in order. Accordingly, a data recording / reproducing apparatus can be realized in which the rotation waiting time can be remarkably reduced, and the high-speed random access property can be remarkably improved.

(3) Other Embodiments In the above-described embodiment, a case has been described in which the hard disk 2 is applied as a recording medium for recording encoded data D2 obtained by compressing and encoding a video signal S1. However, the present invention is not limited to this, and various other disk-shaped recording media can be applied.

In the above-described embodiment, after the seek is completed, the sector 4 designated by the higher-level controller is used.
A, 4B,..., In order from the sectors 4A, 4B,. 4A, 4B,... Are sequentially recorded by the memory control unit 14, the memory 16,
Although the description has been given of the case where the configuration is made up of the ID insertion circuit 21, the data recording circuit 20, the data reproduction circuit 19, the actuator control unit 18 and the control unit 15, the present invention is not limited to this, and various other configurations can be applied. .

Further, in the above-described embodiment, a case has been described in which the memory 16 is applied as a storage means for storing the input coded data D2. However, the present invention is not limited to this. Various recording means can be applied.

Further, in the above-described embodiment, the reading means for reading out the encoded data D2 stored and held in the memory 16 by dividing the encoded data D2 into units of size corresponding to the capacities of the sectors 4A, 4B... Has been described as being configured by the memory control unit 14 and the control unit 15 formed separately, but the present invention is not limited to this, and the reading unit may be configured by one control unit. good.

Further, in the above-described embodiment, as a method of adding identification information to encoded data D3 obtained by dividing a series of encoded data D2 in units of one sector, the identification information is added to encoded data D3. Although the description has been given of the case where the identification is performed, the present invention is not limited to this. For example, the identification information may be stored in the header of each encoded data D3. By doing so, the effect of reducing the redundancy of the encoded data D3 can be obtained.

Further, in the above-described embodiment, after the seek is completed, each code data D11 sequentially reproduced by the reproduction head is returned in the original order based on the identification information given to each encoded data D11. The data reproducing circuit 19 and the actuator control unit 1
8, the case has been described in which the ID detection circuit 22, the memory control unit 14, the memory 16, and the control unit 15 are used, but the present invention is not limited to this, and various other configurations can be applied.

Further, in the above-described embodiment, the case where the specified encoded data D11 reproduced from the disk 2 are arranged in the original order based on the identification information and stored in the memory 16 in the reproduction mode. As stated,
The present invention is not limited to this, and writing to the memory 16 may be performed in the order of reproduction, and when reading from the memory 16, reading may be performed in the original order based on identification information.

Further, in the above-described embodiment, after the seek in the recording mode is completed, each of the designated sectors 4
A, 4B,... Have been described in which the encoded data D3 is sequentially recorded from the first one, but the present invention is not limited to this. For example, after the seek in the recording mode is completed, the encoded data is recorded first. When the sectors 4A, 4B,... Are the Nth sectors 4A, 4B,... From the first sector 4A, the sectors 4A, 4B,. May be switched so as to record the encoded data D3 from the memory 16.

Further, in the above-mentioned embodiment, the present invention is applied to an image data recording / reproducing apparatus which reads and writes encoded data D2 obtained by compressing and encoding an input video signal S1 on a hard disk 2. As described above, the present invention is not limited to this, and the point is that the input data is recorded on a specified track of a disk-shaped recording medium in which a plurality of tracks are formed on a recording surface and each track is divided into a plurality of sectors. In addition to the above, various other data recording devices capable of recording data by dividing into a plurality of designated sectors, and a disk-shaped recording medium in which a plurality of tracks are formed on a recording surface and each track is divided into a plurality of sectors. Various other data reproducing devices for reproducing input data divided into a plurality of sectors in a predetermined track and recorded, or input data Is divided into a plurality of designated sectors in a designated track of a disc-shaped recording medium in which a plurality of tracks are formed on a recording surface and each track is divided into a plurality of sectors. It is suitable for application to various data recording / reproducing devices.

[0063]

As described above, according to the present invention, in a data recording apparatus, after a seek is completed, the sectors at positions where divided input data of a plurality of designated sectors can be recorded are sequentially arranged in order from the sector. By providing recording means for sequentially assigning each divided input data to a designated sector via a recording head by providing identification information, a rotation waiting time during a recording operation is remarkably reduced. Thus, it is possible to realize a data recording device capable of significantly improving high-speed random access.

According to the present invention, in the data reproducing apparatus, after the seek is completed, each divided input data recorded on the disk-shaped recording medium which is sequentially reproduced by the reproducing head is converted into each divided input data. By providing a reproducing means for arranging and outputting in the original order based on the identification information respectively given to, the rotation waiting time at the time of the reproducing operation can be remarkably reduced, and thus the high-speed random access property is improved. It is possible to realize a data reproducing apparatus that can be significantly improved.

Further, according to the present invention, in the data recording / reproducing apparatus, after a seek operation at the time of the recording operation is completed, the sectors at positions where divided input data of a plurality of designated sectors can be recorded are sequentially arranged. A recording means for sequentially recording each divided input data to a specified sector via a recording head with identification information added thereto, and a disk-shaped disk which is sequentially reproduced by the reproducing head after a seek operation during the reproducing operation is completed. By providing reproducing means for arranging each divided input data recorded on the recording medium in the original order based on the identification information given to each divided input data and outputting the original data, the recording operation is performed. Data recording that can significantly reduce the rotation waiting time during recording and playback operations, thus dramatically improving high-speed random access. It is possible to realize a reproducing apparatus.

Further, according to the present invention, in the data recording method, after the seek is completed, the divided input data of the plurality of designated sectors are sequentially arranged in the order from the sector at the position where the divided input data can be recorded. By sequentially recording data to the specified sector via the recording head with the identification information added thereto, the rotation waiting time during the recording operation can be significantly reduced, and thus the high-speed random access property can be obtained. Can be realized a data recording method capable of greatly improving the data recording method.

Further, according to the present invention, in the data reproducing method, after the seek is completed, each divided input data recorded on the disk-shaped recording medium which is sequentially reproduced by the reproducing head is replaced with each divided input data. And output them in the original order based on the identification information given to them, thereby significantly reducing the rotation waiting time during the playback operation and thus dramatically improving the high-speed random access property. A data reproducing method that can be performed can be realized.

Further, according to the present invention, in the data recording / reproducing method, after a seek operation at the time of the recording operation is completed, the sectors at positions where the divided input data of the plurality of designated sectors can be recorded are sequentially arranged. A first step in which each divided input data is sequentially recorded in a designated sector via a recording head with identification information added thereto, and sequentially reproduced by a reproducing head after a seek operation in a reproducing operation is completed. A second step of arranging the divided input data recorded on the disc-shaped recording medium in the original order based on the identification information given to each of the divided input data, and outputting the original data;
By providing the above steps, it is possible to significantly reduce the rotation waiting time during the recording operation and the reproducing operation, thereby realizing a data recording / reproducing method capable of remarkably improving the high-speed random access property. it can.

[Brief description of the drawings]

FIG. 1 is a configuration of an image data recording / reproducing apparatus according to an embodiment.

FIG. 2 is a schematic diagram for explaining a read cycle time in the present embodiment.

FIG. 3 is a conceptual diagram showing a configuration of a general hard disk device.

FIG. 4 is a conceptual diagram showing an example of sector formation on a hard disk.

FIG. 5 is a schematic diagram for explaining a read cycle time;

FIG. 6 is a schematic diagram for explaining a read cycle time in a conventional hard disk device.

[Explanation of symbols]

2 disk 2A recording surface 3A 3B track 4A-4Q sector 10 image data recording / reproducing device 13 data recording / reproducing block 14
Memory control unit, 15 control unit, 16 memory, 18 actuator control unit, 19 data reproduction circuit, 20 data recording circuit, 21 ID insertion circuit, 22 ID detection circuit, D1 ... Video data, C
1 ... write command, C2 ... read command, D2, D3,
D11, D12 ... coded data, D10 ... reproduced data, S1, S6 ... video signal, S5 ... ID detection signal.

Claims (14)

[Claims] 1. A method according to claim 1, wherein a plurality of tracks are formed on a recording surface and each of said plurality of tracks is divided into a plurality of sectors. In a data recording apparatus capable of recording by dividing into sectors, after a seek for moving a recording head onto the specified track of the disc-shaped recording medium is completed, the divided input data of the specified plurality of sectors is Recording means for sequentially assigning identification information to each of the divided input data and sequentially recording the divided input data in the designated sector via the recording head, starting from the sector located at a position where data can be recorded. Data recording device. 2. The storage means includes: storage means for storing and holding the input data; and input data stored and held by the storage means.
Reading means for reading the disk-shaped recording medium by dividing the disk-shaped recording medium in units of size corresponding to the capacity of each sector, wherein the reading means, according to the rotational phase of the disk-shaped recording medium after completion of the seek, 2. The data recording apparatus according to claim 1, wherein a reading order of the divided input data read from the storage unit is switched. 3. The data recording apparatus according to claim 1, wherein said recording means assigns said identification information so as to be stored in a header of each of said divided input data. 4. A plurality of tracks are formed on a recording surface, and each of the tracks is divided into a plurality of sectors in a predetermined track of a disk-shaped recording medium divided into a plurality of sectors. In a data reproducing apparatus for reproducing input data, after a seek for moving a reproducing head onto the predetermined track of the disk-shaped recording medium is completed, the data recorded on the disk-shaped recording medium sequentially reproduced by the reproducing head are recorded. A data reproducing apparatus, comprising: reproducing means for arranging and outputting each of the divided input data in the original order based on the identification information given to each of the divided input data. 5. A method according to claim 1, wherein a plurality of tracks are formed on a recording surface, and each of said tracks is divided into a plurality of sectors. In a data recording / reproducing apparatus capable of recording and reproducing data by dividing into sectors, after a seek for moving a recording head onto the specified track of the disk-shaped recording medium is completed, the divided of the plurality of specified sectors is Recording means for sequentially recording the divided input data in the designated sector via the recording head by adding identification information to each of the divided input data in order from the sector at a position where the input data can be recorded; and a reproducing head. Is moved onto the specified track of the disk-shaped recording medium, and after the seek is completed, the data is sequentially reproduced by the reproduction head. Reproducing means for arranging the divided input data recorded on the disc-shaped recording medium in the original order based on the identification information given to each of the divided input data and outputting the original data. A data recording / reproducing apparatus characterized by the above-mentioned. 6. The storage means includes: storage means for storing and holding the input data; and input data stored and held by the storage means.
Reading means for dividing and reading the disk-shaped recording medium in units of size corresponding to the capacity of each of the sectors, wherein the reading means, in accordance with the rotation phase of the disk-shaped recording medium after completion of the seek, 6. The data recording / reproducing apparatus according to claim 5, wherein a reading order of the divided input data read from the storage unit is switched. 7. The data recording / reproducing apparatus according to claim 5, wherein said recording means assigns said identification information so as to be stored in a header of each of said divided input data. 8. The input data, wherein a plurality of tracks are formed on a recording surface and each of said tracks is divided into a plurality of sectors. In a data recording method for recording data by dividing into sectors, a first step of moving a recording head onto the specified track of the disk-shaped recording medium, and after moving the recording head onto the specified track,
The divided input data of the plurality of designated sectors is sequentially assigned the identification information from the sector at the position where the divided input data can be recorded, and the divided input data is assigned the identification information via the recording head. A second step of sequentially recording data in designated sectors. 9. The second step includes: a storage step of sequentially storing and holding the input data in a storage means; and a storage capacity of each of the sectors of the disk-shaped recording medium by storing the input data stored and held by the storage means. A readout step of dividing the input data to be read out from the storage means in accordance with the rotational phase of the disk-shaped recording medium after the completion of the seek in the readout step. 9. The data recording method according to claim 8, wherein the reading order of the data is switched. 10. The data recording method according to claim 8, wherein in the second step, the identification information is added so as to be stored in a header of each of the divided input data. 11. A plurality of tracks are formed on a recording surface, and each track is divided into a plurality of sectors within a predetermined track of a disk-shaped recording medium divided into a plurality of sectors. In a data reproducing method for reproducing input data, a first step of moving a reproducing head onto the predetermined track of the disk-shaped recording medium, and recording the data on the disk-shaped recording medium sequentially reproduced by the reproducing head. Each of the divided input data obtained above is
A second step of arranging and outputting the input data in the original order based on the identification information given to each of the divided input data. 12. Input data is read from a plurality of designated tracks in a designated track of a disk-shaped recording medium in which a plurality of tracks are formed on a recording surface and each of the tracks is divided into a plurality of sectors. A data recording / reproducing method for recording / reproducing by dividing into sectors, wherein after a seek for moving a recording head onto the designated track on the disc-shaped recording medium is completed, the divided one of the designated plurality of sectors is A first step of sequentially assigning identification information to each of the divided input data and sequentially recording the divided input data in the designated sector via the recording head, starting from the sector at a position where input data can be recorded; After the seek for moving the reproduction head onto the specified track of the disk-shaped recording medium is completed, the reproduction head is sequentially turned on by the reproduction head. A second step of arranging and outputting the divided input data recorded on the disk-shaped recording medium to be reproduced in the original order based on the identification information respectively given to the divided input data; A data recording / reproducing method, comprising: 13. The first step includes: a storage step of sequentially storing and holding the input data in a storage means; and a storage capacity of each of the sectors of the disk-shaped recording medium by storing the input data stored and held by the storage means. A readout step of dividing the input data to be read out from the storage means in accordance with the rotational phase of the disk-shaped recording medium after the completion of the seek in the readout step. 13. The data recording / reproducing method according to claim 12, wherein the reading order of the data is switched. 14. The data recording / reproducing method according to claim 12, wherein in the first step, the identification information is added so as to be stored in a header of each of the divided input data. .