JP2002042418A - Data recording device - Google Patents

Abstract

(57) [Summary] [Problem] To record data on a recording medium, even if the recordable area of the recording medium is reduced due to a defect or the like and the recording area of the recording medium becomes insufficient, human labor is troublesome. A data recording device capable of recording data without causing the data recording device to record data. SOLUTION: Even when recording of unrecorded data on the optical disk 9 fails due to a defect occurring on the optical disk 9 as a recording medium and a decrease in the recordable area, the recordable area of the optical disk 9 is increased and this recording is performed. The unrecorded data is recorded in the possible area. As a result, unrecorded data can be recorded on the optical disk 9 without any need for human intervention, and the recording process evaluation can be continued and the evaluation efficiency can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a data recording apparatus for recording data on a recording medium such as an optical disk.

[0002]

2. Description of the Related Art In recent years, auxiliary recording devices for personal computers (referred to as personal computers) have been changed from CD-ROM drives to DVD-ROM drives.

As a DVD, a read-only DVD-RO
In addition to M, DVD-Rs capable of additional recording and DVD-RAM / RWs capable of rewritable recording have been developed, and storage devices for such recording media are used as storage devices for the next major personal computers and consumer appliances. It is expected to be. Therefore, new DVD-
The development of RAM / R / RW is progressing rapidly.

FIG. 4 is a block diagram showing a conventional optical disk recording apparatus. When the power is turned on, the servo mechanism 11 controls the optical disk 9 to make the optical disk 9 accessible. Further, a recording command issued from the host personal computer 1 is received by the ATAPI I / F unit 5 as an I / F unit provided in the optical disk controller 10,
Command analysis processing is performed by the command analysis processing unit 6 of the system controller 12. If the received data is determined by the command analysis processing unit 6 to be a recording command, the AT
The API I / F unit 5 receives recording data from the host personal computer 1 and transmits the data to the cache control circuit 3 of the ECC core 13 provided in the optical disk controller 10.
The cache control circuit 3 includes a DRAM 2 serving as a cache.
To hold the recorded data.

After the record data is held, the system controller 12 sends the ATAPI
A normal termination status is transmitted to the I / F unit 5. ATA
The PII / F unit 5 transmits a normal termination status to the host personal computer 1 and releases communication with the host personal computer 1. The system controller 12 performs the status transmission processing in the status transmission processing section 7 and then performs the access control processing section 8
To transmit the recording data held in the DRAM 2 to the cache control circuit 3 of the ECC core 13 to the access execution circuit 4, and activate the access execution operation by the access execution circuit 4 to the optical disc 9. Record.

On the other hand, if the recording area of the optical disk 9 becomes insufficient due to a defect, the access execution circuit 4 sends a signal indicating that recording is not possible to the system controller 12. After receiving the error signal, the system controller 12 suspends the recording.

[0007] Such a conventional optical disk recording apparatus is called D
It is conceivable that the present invention is also applied to a rewritable optical disk such as a VD-RAM / R / RW.

[0008]

When data is recorded by the above-mentioned rewritable recording type optical disk recording apparatus, if a defect occurs in the optical disk 9, the recordable area is reduced. When performing recording evaluation in the development of an optical disk recording device, a tool that automatically evaluates continuous recording is generally used. However, when the recording area is insufficient, the recording evaluation is interrupted and the optical disk recording device is stopped. The recordable area of the optical disk 9 is secured by manually deleting data from the recording area of the optical disk 9 via the host personal computer 1 connected to the optical disk 9, or the optical disk 9 is replaced to resume the interrupted recording evaluation. Needed. For this reason, a wasteful recording evaluation time is generated and the development efficiency is reduced.

The present invention solves the above-mentioned problems. When data is recorded on a recording medium, even if the recordable area of the recording medium decreases due to a defect or the like and the recording area of the recording medium becomes insufficient. It is another object of the present invention to provide a data recording device such as an optical disk recording device capable of recording data without bothering humans.

[0010]

According to a first aspect of the present invention, there is provided a data recording apparatus comprising: an unrecorded data amount of data to be recorded on a recording medium and a recordable area of the recording medium; In comparison, when it is detected that the recordable area is smaller than the unrecorded data amount and is insufficient, there is an area shortage notification unit that notifies the shortage state and an area shortage notification by the area shortage notification unit. When
Recording area securing means for processing the recorded data portion of the recording medium to increase the recordable area of the recording medium; and the unrecorded data in the recordable area of the recording medium secured by the recording area securing operation by the recording area securing means. And control means for causing the recording medium to be recorded on a recording medium.

According to a second aspect of the present invention, there is provided a data recording apparatus which compares a data amount not recorded on a recording medium in a cache for temporarily storing data to be recorded with a recordable area of the recording medium, and Is smaller than the unrecorded data amount, the area shortage notifying means for notifying the shortage state when the shortage is detected. Recording area securing means for processing a recorded data portion to increase the recordable area of the recording medium; and recording the unrecorded data in the recordable area of the recording medium secured by the recording area securing operation by the recording area securing means. And control means for recording the data in the recording medium.

According to the first and second aspects of the present invention, when a recordable area of a recording medium such as an optical disk is reduced due to a defect or the like, the recordable area of the recording medium becomes smaller than the unrecorded data amount. The data of the recording medium is processed by the recording area securing means to increase the recordable area of the recording medium, and the unrecorded data is recorded on the recording medium. As a result, it is possible to record the unrecorded data on the recording medium without bothering the human.

[0013] The invention according to claim 3 is the invention according to claim 1 or 2.
In the data recording device described in the above, priority setting means for setting the priority of data in the recording medium to be processed by the recording area securing means, and when the recordable area of the recording medium is smaller than the unrecorded data amount, The recording medium is processed based on the priority set by the priority setting means to increase the recordable area of the recording medium.

According to this configuration, since the recording medium is processed based on the preset priority, it is possible to minimize the processing of data that is not desired to be processed. According to a fourth aspect of the present invention, in the data recording apparatus according to any one of the first to third aspects, the recording area securing unit increases a recordable area of the recording medium by deleting a part of the data of the recording medium. It is characterized by making it.

According to a fifth aspect of the present invention, in the data recording apparatus according to any one of the first to fourth aspects, a cache for temporarily storing data to be recorded and a data for processing are temporarily stored in the cache. And processing data reading means for temporarily storing the processed data.

According to this, even when recording on the recording medium has failed, a part of the data on the recording medium is processed by the recording area securing means to increase the recordable area of the recording medium, and the unrecorded data is deleted. In addition to being recorded on the recording medium, the data before the processing of the recording medium is temporarily stored in the cache, so that the data before the processing is held until the next recording processing, and the reliability is improved.

According to a sixth aspect of the present invention, in the data recording apparatus according to any one of the first to fifth aspects, there is a non-recordable portion, and the recordable area is reduced due to the presence of the non-recordable portion. A recording area securing process is performed on a recording medium.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. The components having substantially the same functions as those of the conventional optical disk recording device are denoted by the same reference numerals, and the description thereof will be partially omitted. (First Embodiment) FIG. 1 is a block diagram of an optical disk recording apparatus (optical disk recording evaluation apparatus) according to an embodiment of the present invention. As shown in FIG. 1, this optical disk recording apparatus includes a servo mechanism 11 for mechanically driving an optical disk 9 as a recording medium and an A for receiving a command issued from a host personal computer 1 as a system control device.
A TAPI I / F unit 5, a DRAM 2 serving as a cache for temporarily storing data transmitted from the host personal computer 1 via the ATAPI I / F unit 5, and a DRAM
A cache control circuit 3 for controlling the ATAP II / F, an access execution circuit 4 for recording data held in the DRAM 2 by the cache control circuit 3 on the optical disc 9,
A command analysis processing unit 6 for analyzing a command received from the unit 5 and holding the data transmitted from the host personal computer 1 in the DRAM 2 according to the content of the command received;
A status transmission processing unit 7 for returning a status corresponding to the command reception content of the I / F unit 5 to the host personal computer 1 via the ATAPI I / F unit 5, a cache control circuit 3 and an access by the status transmission processing unit 7 An access control processing unit 8 for controlling the execution circuit 4;

The access execution circuit 4 records the recordable area of the optical disk 9 whose recordable area has been reduced due to the existence of the recordable area when the optical disk 9 has a record impossible area due to a defect or the like. When the amount of recordable area of the optical disk 9 is smaller than the amount of unrecorded data and is detected to be insufficient, by comparing the amount of data not recorded on the optical disk 9 in the DRAM 2 that temporarily holds data to be recorded. Function also as an area shortage notifying means for notifying the shortage state as an error signal.

In this optical disk recording apparatus, in addition to the above components, when an error signal is input from the access execution circuit 4, the recorded data portion of the optical disk 9 is processed to increase the recordable area of the optical disk 9. A recording area securing processing unit 10 is provided. Then, the system controller 20 as a control unit including the access control processing unit 8 and the recording area securing processing unit 10 transmits the data to the optical disc 9 in which the insufficient area has been secured by the recording area securing operation by the recording area securing processing unit 10. Control is performed to record the unrecorded data.

In the above configuration, when the power is turned on, the servo mechanism 11 controls the optical disk 9 as a recording medium,
The optical disk 9 is made accessible. Further, a recording command issued from the host personal computer 1 as a system control device is received by the ATAPI I / F unit 5 as an I / F unit, and the command analysis processing unit 6 of the system controller 20 performs command analysis processing. When the received data is determined to be a recording command by the command analysis processing unit 6, the ATAPI I / F unit 5
And sends the data to the cache control circuit 3 of the ECC core 13. The cache control circuit 3 causes the DRAM 2 as a cache to hold the recording data.

After the recording data is held, the system controller 20 sends the ATAPI
A normal termination status is transmitted to the I / F unit 5. ATA
The PII / F unit 5 transmits a normal termination status to the host personal computer 1 and releases communication with the host personal computer 1. The system controller 20 performs the status transmission processing in the status transmission processing unit 7 and then performs the access control processing unit 8
To transmit the recording data held in the DRAM 2 to the cache control circuit 3 of the ECC core 13 to the access execution circuit 4, and start the access execution by the access execution circuit 4, and Make a record.

On the other hand, if the recording area of the optical disk 9 is lost due to the occurrence of a defect, the access execution circuit 4 sends an error signal indicating that recording is not possible to the system controller 20.
Send to When the system controller 20 receives the error signal, thereafter, the recording area securing processing unit 10 performs a recording area securing process. Specifically, the data already recorded on the optical disk 9 are deleted in order from the oldest data, and when the recording area is secured, the recording interrupted by the error is restarted, and the optical disk secured by the recording area securing operation is resumed. Nine recordable areas are recorded with the unrecorded data.

As a result, a new defect occurs on the optical disk 9 and the recordable area of the optical disk 9 is reduced.
Even when the recording of the write data held in the RAM 2 onto the optical disk 9 fails, a recording area securing process is automatically performed, and the unrecorded data is recorded on the recordable area of the optical disk 9. Therefore, conventionally, when recording on the optical disk 9 has failed due to a defect in the optical disk 9, the recording is interrupted and the recording evaluation area after the optical disk 9 is manually secured or the optical disk 9 is replaced. Although it was necessary to perform the operation, such an operation becomes unnecessary, so that in the recording evaluation operation of the optical disk 9, the recording processing evaluation can be continued, and the evaluation efficiency can be improved. (Second Embodiment) Next, an invention for an evaluation system will be developed, and an optical disk recording apparatus of a system that actually takes into consideration the use of general users will be described.

When a general user uses an optical disk recording device, it is necessary to consider the importance of data recorded on the optical disk 9 which could be ignored in the case of recording evaluation. Therefore, in the optical disc recording apparatus according to the present embodiment, as shown in FIG. 2, the recording area securing processing unit 10 of the first embodiment is configured to secure a recording area with priority to perform a recording area securing process according to the priority. The processing unit 30 is changed, and a priority setting unit 31 for setting a priority in advance is added. Further, instead of the host computer 1 of the first embodiment,
A UI controller 35 including a video / audio input / output circuit 32, an MPEG decoder / encoder circuit 33, and a UI command analysis circuit 34 is provided. The access control processing unit 8 and the recording area securing processing unit 3 with priority
The system controller 36 as control means having 0 or the like controls the unrecorded data to be recorded on the optical disc 9 in which the insufficient area is secured by the recording area securing operation by the recording area securing processing unit 30 with priority. I do.

By prioritizing the data to be deleted by these changes and additions, even if the recordable area of the optical disk 9 is insufficient, the data is automatically deleted according to the priority and the latest data is deleted. Complete the recording. It should be noted that the priority setting unit 31 previously sets data having a low importance as a deletion target and sets it as the deletion target with the highest priority, and sets lower priority as the data becomes more important.

In the above configuration, when the power is turned on, the servo mechanism 11 controls the optical disk 9 as a recording medium,
The optical disk 9 is made accessible. Further, the UI controller 35 as a system control device analyzes the recording command of the user by the UI command analysis circuit 34 and at the same time converts it into a recording command to be transmitted to the optical disk recording device. In addition, the video from the outside is transmitted to the MPEG decoder / encoder circuit 3 via the video / audio input / output circuit 32.
In step 3, the data is converted into recording data. The recording command analyzed and converted by the UI command analysis circuit 34 of the UI controller 35 is an ATAPI I / F unit 5 as an I / F unit.
The command is analyzed by the command analysis processing unit 6 of the system controller 36. When the received data is determined to be a recording command by the command analysis processing unit 6, the ATAPI I / F unit 5
5 and receives the converted recording data from the ECC core 13
To the cache control circuit 3. The cache control circuit 3 causes the DRAM 2 as a cache to hold the recording data.

After the recording data is held, the system controller 36 sends the ATAPI
The command reception completion status is transmitted to the I / F unit 5. The ATAPI I / F unit 5 transmits a normal end status to the UI controller 35, and releases communication with the UI controller 35. After performing the status transmission process in the status transmission processing unit 7, the system controller 36
The access control processing unit 8 performs access control processing,
The recording data held in the DRAM 2 is transmitted to the cache control circuit 3 of the ECC core 13 to the access execution circuit 4, and the access execution operation by the access execution circuit 4 is started to perform recording on the optical disc 9.

On the other hand, if the recording area of the optical disk 9 is lost due to the occurrence of a defect, the access execution circuit 4 sends an error signal indicating that recording is not possible to the system controller 36.
Send to When receiving the error signal, the system controller 36 thereafter sets the priority-added recording area securing processing unit 3
If 0, a recording area securing process is performed. Specifically,
Based on the data set in the priority setting section 31 of the system controller 36 from the UI controller 35 through the ATAPI / IF section 5, the data already recorded on the optical disc 9 is deleted in the order of the priority and the recording area is secured. Is completed, the recording interrupted by the error is restarted, and the unrecorded data is recorded in the recordable area of the optical disk 9 secured by the recording area securing operation,
The recording operation is completed.

According to this configuration, even when a new defect occurs in the optical disk 9 and the recordable area of the optical disk 9 is reduced, the recording of the write data held in the DRAM 2 on the optical disk 9 fails even if the recording fails. An area securing process is performed, and unrecorded data is recorded in a recordable area of the optical disc 9. In particular, according to this configuration, not only can the recording of the latest data be completed, but also the recording medium is processed based on a preset priority. Processing can be minimized. (Third Embodiment) Next, an optical disk recording apparatus of a system different from that of the above-described second embodiment in consideration of use by general users will be described.

In the optical disk recording apparatus according to this embodiment, as shown in FIG. 3, in addition to the recording area securing processing section 10 of the first embodiment, data of the optical disk 9 to be deleted for securing the recording area is read. D as a cache in
A deletion data reading processing unit 40 is provided as processing data reading means to be temporarily stored in the RAM 2. That is, in the second embodiment, the data to be deleted due to lack of the recording area is stored in the DRAM 2 used for holding the recording data in this embodiment, so that the data can be stored in the optical disc recording apparatus. The recording can be completed without adding a new DRAM and without being conscious of the data recorded on the optical disc 9.

In the above configuration, when the power is turned on, the servo mechanism 11 controls the optical disk 9 as a recording medium,
The optical disk 9 is made accessible. Further, the UI controller 35 as a system control device analyzes the recording command of the user by the UI command analysis circuit 34 and at the same time converts it into a recording command to be transmitted to the optical disk recording device. In addition, the video from the outside is transmitted to the MPEG decoder / encoder circuit 3 via the video / audio input / output circuit 32.
In step 3, the data is converted into recording data. The recording command analyzed and converted by the UI command analysis circuit 34 of the UI controller 35 is an ATAPI I / F unit 5 as an I / F unit.
The command is analyzed by the command analysis processing unit 6 of the system controller 41. When the received data is determined to be a recording command by the command analysis processing unit 6, the ATAPI I / F unit 5
5 and receives the converted recording data from the ECC core 13
To the cache control circuit 3. The cache control circuit 3 causes the DRAM 2 as a cache to hold the recording data.

After the record data is held, the system controller 41 sends the ATAPI
The command reception completion status is transmitted to the I / F unit 5. The ATAPI I / F unit 5 transmits a normal end status to the UI controller 35, and releases communication with the UI controller 35. The system controller 41 performs status transmission processing in the status transmission processing unit 7,
The access control processing unit 8 performs access control processing,
The recording data held in the DRAM 2 is transmitted to the cache control circuit 3 of the ECC core 13 to the access execution circuit 4, and the access execution operation by the access execution circuit 4 is started to perform recording on the optical disc 9.

On the other hand, if the recording area of the optical disk 9 is lost due to the occurrence of a defect, the access execution circuit 4 sends an error signal indicating that recording is not possible to the system controller 41.
Send to After receiving the error signal, the system controller 41 prepares for the recording area securing processing by the recording area securing processing unit 10 thereafter. At this time, the deletion data read processing unit 40 temporarily stores the data to be deleted of the optical disk 9 in the area to be deleted by the recording area securing processing in the DRAM 2 via the cache control circuit 3 before performing the recording area securing processing. Control to save. After temporarily storing the data to be deleted in the DRAM 2, the recording area securing processing unit 10 performs a recording area securing process for deleting the read data to be deleted from the optical disc 9. Then, when the recording area is secured, the recording interrupted by the error is restarted, and the latest data as the unrecorded data is recorded in the recordable area of the optical disk 9 secured by the recording area securing operation.

According to this embodiment, not only can the recording of the latest data be completed automatically, but also the data before deletion from the optical disk 9 is temporarily stored in the DRAM 2, so that the data is not stored until the next recording processing. The data before the deletion is retained and the reliability is improved, and the handling of the data before the deletion can be set freely.

In this embodiment, the recording medium to be processed is not limited to the optical disk 9 having a reduced recordable area due to the occurrence of a defect, and the recording capacity of the optical disk 9 is unknown. Can be applied even if the recordable area is smaller than the record data and the recording on the optical disk 9 fails.

In the above embodiment, the case where the optical disk 9 is deleted is described as the processing for securing the recording area. However, the present invention is not limited to this. May be changed. Further, although the case of the optical disk 9 as the recording medium has been described, it is needless to say that the present invention is not limited to this and can be applied to a magnetic recording medium and the like. Further, although the case where the ATAPI I / F unit 5 is used as the I / F unit has been described, the invention is not limited to this. Also, as a cache, the DRAM 2
Is described, but the present invention is not limited to this.

[0038]

As described above, according to the present invention, even if recording of unrecorded data on a recording medium fails due to a decrease in the recordable area due to the occurrence of a defect in the recording medium such as an optical disk, the recording medium can be used. Since the unrecorded data is recorded in the recordable area by increasing the recordable area of the recordable area, it is possible to record the unrecorded data on the recording medium without bothering the user, and the recording process evaluation can be performed. It can be continued and the evaluation efficiency can be improved.

The priority of the data in the recording medium to be processed by the recording area securing means is set in advance, and when the recordable area of the recording medium is smaller than the unrecorded data amount, the priority is set based on the set priority. By processing the recording medium to increase the recordable area of the recording medium, processing of important data that is not desired to be processed can be minimized, and reliability can be improved.

Further, by providing a cache for temporarily storing data to be recorded and a processed data reading means for temporarily storing data for processing in the cache, unrecorded data is recorded on a recording medium. In addition, since the data before the deletion from the recording medium is temporarily stored in the cache, the data before the deletion is retained until the next recording processing, and the reliability is improved. Also, this configuration
It can also be applied when the recording capacity of the recording medium is unknown and the recordable area is smaller than the recording data and recording on the recording medium fails.In this case, the recording of the latest data is completed and the next Since the handling of the held data can be freely set up to the recording process of, there is no need to be aware of the recordable area of the recording medium.

[Brief description of the drawings]

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

FIG. 2 is a block diagram of an optical disc recording apparatus according to another embodiment of the present invention.

FIG. 3 is a block diagram of an optical disk recording device according to another embodiment of the present invention.

FIG. 4 is a block diagram of a conventional optical disk recording device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Host personal computer 2 DRAM (cache) 3 Cache control circuit 4 Access execution circuit (area shortage notification means) 5 ATAPI I / F section (I / F section) 8 Access control processing section 9 Optical disk 10 Recording area securing processing section 20, 36 , 41 System controller (control means) 30 Priority recording area securing processing section 31 Priority setting section 35 UI controller 40 Deleted data read processing section (processed data reading means)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Koji Nishida 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F-term (reference) 5D044 BC06 CC04 DE02 EF03 5D110 CE11 CL01

Claims (6)

[Claims] 1. An unrecorded data amount of data to be recorded on a recording medium is compared with a recordable area of the recording medium.
When detecting that the recordable area is smaller than the unrecorded data amount and is insufficient, an area shortage notifying unit that notifies the shortage state, and when there is an area shortage notification by the area shortage notifying unit, Recording area securing means for processing the recorded data portion of the recording medium to increase the recordable area of the recording medium; and the unrecorded data in the recordable area of the recording medium secured by the recording area securing operation by the recording area securing means. A data recording device, comprising: a control unit for recording the data on a recording medium. 2. A method for comparing the amount of data not recorded on a recording medium in a cache for temporarily storing data to be recorded with a recordable area of a recording medium, and determining that the recordable area is larger than the unrecorded data amount. An area shortage notifying unit that notifies the shortage state when it is detected that the area is small and short, and when an area shortage notification is issued by the area shortage notifying unit, the recorded data portion of the recording medium is processed. Recording area securing means for increasing the recordable area of the recording medium, and control means for recording the unrecorded data on the recording medium in the recordable area of the recording medium secured by the recording area securing operation by the recording area securing means. Data recording device. 3. A priority setting means for setting a priority of data on a recording medium to be processed by a recording area securing means, and said priority setting when a recordable area of the recording medium is smaller than an unrecorded data amount. 3. The data recording apparatus according to claim 1, wherein the recording medium is processed based on the priority set by the means to increase a recordable area of the recording medium. 4. The data recording apparatus according to claim 1, wherein the recording area securing unit increases a recordable area of the recording medium by deleting a part of data of the recording medium. 5. The apparatus according to claim 1, further comprising: a cache for temporarily storing data to be recorded; and a processed data reading unit for temporarily storing data for processing in said cache. Data recording device. 6. The recording area securing process according to claim 1, wherein there is a recording impossible area, and the recording area securing process is performed on a recording medium whose recordable area has been reduced due to the existence of the recording impossible area. Data recording device.