JP2002008323A - Inspection method for information recording and reproducing device and information recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method capable of executing inspection at arbitrary timing with good workability and self-diagnosis and which is capable of easily recognizing the change in the performance with lapse of time in deciding whether the recording performance of an information recording and reproducing device 1 which houses many optical disks and is arranged with drive device 5, 6, 7, 8 which performs recording and reproducing of the disks 14 is good or not. SOLUTION: The specific disk among the housed disks 14 is used as the disk 15 for inspection in inspecting the recording function of a drive 5 and the number of the occurrence of alternate sectors generated on the disk 15 side for inspection in the inspection is detected to decide whether the recording function of the drive 5 is good or not.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of inspecting an information recording / reproducing apparatus having a recording / reproducing unit for optically recording and reproducing information on a recording / reproducing medium such as a DVD-RAM, which contains a large number of sheets. And an information recording / reproducing apparatus.

[0002]

2. Description of the Related Art A conventional information recording / reproducing apparatus will be described with reference to FIGS. FIG. 6 is a block diagram of a conventional information recording / reproducing apparatus, and FIG. 7 is a flowchart of an inspection executed by the apparatus of FIG.

First, the configuration of a conventional information recording / reproducing apparatus 1 will be described with reference to FIG. In FIG. 6, an information recording / reproducing apparatus (the name in the figure is an information management recording / reproducing apparatus) 1 has a recording / reproducing apparatus (hereinafter, referred to as a "drive apparatus") for an information recording medium 14 (hereinafter referred to as "disk"). Are stored (first drive device 5, second drive device 6, third drive device 7, fourth drive device 8),
Further, three disk cases 11, 12, and 13 for storing 20 disks 14 each are provided.

The disk cases 11, 12, 1
3. Take out the disk 14 from the disk drive 3 and drive devices 5,
The disk moving device 3 which conveys and loads the disk 14 to 6, 7, 8 or ejects the recorded or reproduced disk 14 from each of the drive devices 5, 6, 7, 8 and returns it to the original disk cases 11, 12, 13. Is provided. The disk moving device 3 is configured to be able to move up and down through a moving belt 2 by a dedicated control motor 4.

[0005] The operation of taking out the disk 14 from the disk cases 11, 12 and 13 and returning it to the case, and the operation of the drive devices 5, 6 and
The control of the movement of the disk 14 to 7 and 8 and the load / eject operation is performed by a control CPU in the information recording / reproducing apparatus 1.
Going at 9.

These operations are executed in accordance with a program recorded in the memory 10, and the memory 10 is also used for temporarily storing an operation state. Disk moving device 3
The operation such as the movement of the disk 14 performed by using a known technique is not described.

In the recording / reproducing of a conventional optical disk including the information recording / reproducing apparatus 1, for example, a DVD-RA
In the case of M, when an instruction to record data on the disc is issued, the recording / reproducing apparatus proceeds to write data from the inner periphery of the disc.

When data is written while executing data compare, if the data recorded on the disk is not correct, the data is written to the same address on the disk again, or the address where the data could not be written correctly is regarded as a defective area, and the alternate recording is performed. Writing is performed to another address (alternate sector) in the disk which is an area.

[0009] When the performance of the drive device and the disk for data recording and reproduction is normal within the shipping standards of the manufacturer, it is regarded as a defective area and the frequency of writing to the replacement sector is low. However, if the drive device is used for a long period of time, the lens of the optical pickup provided in the drive device will become dirty, preventing irradiation and reception of light, or the laser light source of the drive device will deteriorate and the output of irradiation light will decrease. Then, a normal sector of a normal disk is also regarded as a defective area, and as a result, writing to a replacement sector may increase.

Therefore, conventionally, a drive device used for a long time or continuously is taken out of the information recording / reproducing device 1 periodically, and for example, the jitter performance is measured and the error rate is measured. Inspection work to determine whether or not was performed by inspectors as part of support.

A conventional inspection method of the drive devices 5, 6, 7, and 8 of the information recording / reproducing apparatus 1 will be described with reference to a flowchart of FIG. In the following description, a case will be described as an example in which one of the drives in the information recording / reproducing apparatus 1, for example, the first drive device 5 is checked.

In FIG. 7, the first drive device 5 provided in the information recording / reproducing device 1 is removed and taken out of the device 1 (STEP 1), and the control board ( STEP 2 in which a clock signal and a data output line of a recording signal are drawn out from a not-shown), and a measuring terminal of a measuring device (not shown) is attached.

Next, STEP 3 in which the first drive device 5 is connected to a personal computer (hereinafter, referred to as a personal computer) via a control and data transmission transmission line. Turn on the power of the first drive device 5 and the personal computer and execute STEP.
4. STEP 5 for mounting a normal DVD-RAM disk in the first drive device 5;

On the other hand, the personal computer starts a test program for inspection, and records data on the DVD-RAM disk previously mounted on the first drive device 5 according to the control of the test program (STEP 6). The data to be recorded is included in the test program, or is stored in the personal computer or accompanying recording means along with the test program. The data is transmitted to the drive device 5 and recorded on a DVD-RAM disk mounted on the device 5.

After recording, replacement sector information, which is the number of replacement sectors created on the DVD-RAM disk, is obtained and ST
EP7, STEP for determining whether or not the obtained value is within the specified range
8. If the condition is not stipulated, the result is judged to be acceptable.

[0016]

The above-described conventional method of inspecting the information recording / reproducing apparatus 1 has the following problems to be solved.

The first problem is that the workability of the inspection is poor, and it is not easy to carry out the work. At the time of inspection, the drive device 5 to be inspected is removed from the information recording / reproducing device 1 in advance, a predetermined signal line is drawn from a control board inside the removed drive device 5 and connected to a predetermined measurement device,
In addition, a lot of work and time are required, such as starting a dedicated test program by connecting a personal computer and a drive device, and each work is difficult to perform except for inspectors with specialized knowledge and equipment. It has been extremely difficult for a user who manages and operates the information recording / reproducing apparatus 1 to execute a test or to perform a self-diagnosis in which the information recording / reproducing apparatus 1 performs a test automatically or autonomously.

The second problem is that it is difficult to execute the inspection at an arbitrary timing.

As described above, when performing the inspection,
Inspection personnel with specialized knowledge perform the necessary settings, and are executed using considerable inspection time using predetermined inspection equipment.
For example, it must be a regular inspection that is performed every few months.

Therefore, the user who manages and operates the optical disk recording / reproducing apparatus cannot know whether or not the optical system of the apparatus is abnormal until the timing of the next periodic inspection comes. Even if an abnormality occurred in the operation of the device, such as an increase in the frequency of replacement sectors when recording to the disk, whether the problem was due to deterioration in the performance of the optical system of the device and required repair, or used for recording The user had no way of checking on his own to see if the situation was due to the deterioration of the disc quality.

For this reason, despite the fact that the optical system of the optical disk recording / reproducing apparatus actually requires repair and maintenance, the user does not notice the fact and cannot perform normal quality recording work. There is a possibility that the use of the information recording / reproducing apparatus may be hindered.

Further, as a third problem of the prior art, variations in the quality of disks used in the inspection affect the inspection results, and the results of inspections performed a plurality of times at different times are comprehensively evaluated, and There is a problem that it is not possible to obtain a more reliable inspection result, for example, it is difficult to grasp a temporal change in the performance of the apparatus.

That is, in the conventional inspection method described above with reference to FIG. 7, data is recorded on an arbitrary ordinary DVD-RAM disk and the inspection is performed. DVD-RAM disks are not always used, and in the inspection using different disks, there is a risk that the inspection results may include disc performance variations, thereby lowering the accuracy and reliability of the inspection results.

Further, conventionally, a method of leaving inspection results as a document such as a data sheet or recording it as an electronic file on a floppy (registered trademark) disk or the like is generally used. It is easy to lose, and if it is lost, it will be difficult to continuously track the inspection results, and the temporal change in the optical system performance of the recording / reproducing device, that is, whether the device under test continues to maintain a certain level of performance, or Although good performance has been maintained, it has been difficult to determine whether performance degradation has progressed from a certain point in time and is still progressing for some reason using inspection results.

Therefore, the present invention particularly uses a specific optical disk among a large number of optical disks as an inspection disk when inspecting the recording function of the recording / reproducing unit, and generates the inspection disk side at the time of this inspection. Detecting the number of occurrences of replacement sectors, which are replacement sectors for defective sectors in which the inspection information cannot be written, and determining whether or not the recording function of the recording / reproducing unit is good based on the detection result. As a result, the workability is good, the inspection can be easily performed, the inspection can be performed at an arbitrary timing, and the self-diagnosis can be performed. As a result, a reliable inspection result can be obtained, and the inspection result can be easily grasped over time. An object of the present invention is to provide an inspection method for an information recording / reproducing apparatus.

[0026]

In order to solve the above-mentioned problems, the present invention provides an information recording / reproducing apparatus inspection method and an information recording / reproducing apparatus having the following steps (1) to (5). I do. (1) At least one recording / reproducing unit (drive device) for recording / reproducing information for a long time or frequently using a plurality of optical disks (disks) 14 stored in a device (information recording / reproducing device) 1 ) The information recording / reproducing unit 5 in the information recording / reproducing apparatus 1 including 5, 6, 7, 8
This is an inspection method for judging the quality of the recording function of 6, 7, 8 and inspecting the recording function of the recording / reproducing units 5, 6, 7, 8 for a specific optical disk among the plurality of optical disks 14. Of defective sectors which are used as inspection disks (storage disks, confirmation disks) 15 and 16 at the time of inspection and occur on the inspection disks 15 and 16 side at the time of this inspection and in which inspection information cannot be written. An inspection method of the information recording / reproducing apparatus 1 for detecting the number of occurrences of replacement sectors, which are sectors, and determining whether or not the recording function of the recording / reproducing units 5, 6, 7, and 8 is good or defective according to the detection result. Inspection disks 15, 1 mounted on inspection recording / reproducing units 5, 6, 7, 8
6 is recorded (step 16 in FIG. 3 and step 37 in FIG. 5) when the inspection information (confirmation data and predetermined data) is recorded, and the number of replacement sectors generated is detected (STEP 1 in FIG. 3).
7, STEP 38 in FIG. 5), the number of occurrences of the replacement sectors is recorded as inspection acquisition information (replacement sector information) in a specific area (the recording area of the number of replacement sectors in FIG. 2) of the inspection disks 15 and 16 (FIG. 2). STEP 18 in FIG. 3, ST in FIG.
EP39) Inspection information acquisition step, next, the inspection acquisition information, and reference information (Number of occurrences of replacement sectors used as a reference for judging the quality of the recording function of the recording / reproducing units 5, 6, 7, 8 to be inspected) If the test acquisition information is smaller than the reference information, it is determined that the recording function of the recording / reproducing units 5, 6, 7, and 8 is good, and the test acquisition information is determined to be the reference information. If the above is the case, the recording / reproducing unit 5 to be inspected,
Judgment steps for judging that the recording functions 6, 7, and 8 are defective (STEP 19, STEP 20, STEP 21, FIG.
STEP22, STEP23, STEP40 in FIG. 5, S
STEP41, STEP42, STEP43, STEP4
4) A method for inspecting an information recording / reproducing apparatus 1, comprising: (2) The inspection method for the information recording / reproducing apparatus 1 according to claim 1, wherein the inspection disk (storage disk) 15 is
Inspection information recording area in which inspection information (confirmation data, predetermined data) is recorded in advance (confirmation data recording area in FIG. 2)
A test acquisition information recording area (recording area of the number of replacement sectors in FIG. 2) for recording test acquisition information (replacement sector information). (3) Storage means (disk case) 11 for storing a large number of optical disks (disks) so that they can be inserted and removed.
2 and 13, and at least one of recording and reproducing information for a long time or frequently using the optical disc 14;
Recording / reproducing means (drive devices) 5, 6, 7, 8; the storage means 11, 12, 13; and the recording / reproducing means 5,
Transport means (disc moving device) 3 for alternately transporting the optical disk 14 between the optical discs 6, 7, and 8;
An information recording / reproducing apparatus (information management recording / reproducing apparatus) 1, 20 comprising control means (control CPU, personal computer) 9, 20 for controlling the transport operation of the transport means 3, wherein the control means 9, 20 Are used as inspection disks (storage disks, confirmation disks) 15 and 16 for inspecting the recording function of the recording / reproducing means, among the plurality of optical disks 14, and The number of occurrences of replacement sectors, which are the replacement sectors of the defective sectors in which the inspection information (confirmation data and predetermined data) cannot be written, generated on the inspection disks 15 and 16 as the inspection acquisition information (replacement sector information). Inspection disk 15, 1
6 is recorded in a specific area (the recording area of the number of replacement sectors in FIG. 2). Next, the test acquisition information and the criteria for judging the quality of the recording function of the recording and reproducing means 5, 6, 7 and 8 to be inspected. Is compared with reference information (initial replacement sector information) relating to the number of occurrences of replacement sectors to be inspected, and if the test acquisition information is smaller than the reference information, the recording function of the recording / reproducing means 5, 6, 7, 8 is good. The information recording / reproducing apparatus 1 is characterized in that when the test acquisition information is equal to or more than the reference information, the recording function of the test recording / reproducing means 5, 6, 7, 8 is determined to be defective.
20. (4) The inspection method for the information recording / reproducing apparatus 1 according to claim 1 or 2, wherein the inspection disks (storage disks, confirmation disks) 15 and 16 are written at the time of inspection. Information (confirmation data, prescribed data)
Are the recording areas of the inspection disks 15 and 16 (FIG. 2)
(1) A method for inspecting an information recording / reproducing apparatus 1 having a capacity of not less than half of one sector and not more than one sector in a recording structure of a storage disk. (5) In the information recording / reproducing apparatus (1) or (20) according to claim 3, inspection information (confirmation data, predetermined data) written on the inspection disks (storage disk, confirmation disk) 15 and 16 at the time of inspection. ) Are information recording / reproducing devices 1 and 20 having a capacity of not less than half of one sector and not more than one sector in a recording area of the inspection disks 15 and 16 (FIG. 2 recording structure of the storage disk).

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram of a first embodiment of an information recording / reproducing apparatus of the present invention, FIG. 2 is an explanatory view of a recording structure of a storage disk used for inspection by the apparatus of FIG. 1, and FIG. 3 is executed by the apparatus of FIG. FIG. 4 is a block diagram of a second embodiment of the information recording / reproducing apparatus of the present invention, and FIG. 5 is a flowchart of the inspection performed by the apparatus of FIG. The same parts as those described above are denoted by the same reference numerals and description thereof will be omitted.

First, the configuration of an information recording / reproducing apparatus 1 according to a first embodiment of the present invention will be described with reference to FIG. Inside the information recording / reproducing apparatus (the name in the figure is an information management recording / reproducing apparatus) 1, there are three disk cases 11, 12, 13 for storing 20 disks 14 each, and the disk cases 11, 12, 13 For example, the storage disk 15 is stored at the first address 13 (the number assigned to the storage location).

The data recorded on the storage disk 15 will be described with reference to FIG. Storage disk 15
Is recorded on a standard drive (not shown) different from the drives 5, 6, 7, and 8 stored in the information management recording / reproducing apparatus 1, for example, after recording predetermined data (confirmation data) and predetermined data at the time of factory shipment. Is recorded on the inner circumference of the disk. The size of the predetermined data is, for example, D
The capacity is 50 MB, which is half the capacity of one sector in the recording area of the VD-RAM disk. As will be described later, the above-mentioned predetermined data (confirmation data, inspection information) to be written on the storage disk (inspection disk, confirmation disk) 15 at the time of inspection is stored in the recording area of the storage disk 15. You may comprise so that it may have capacity more than half of one sector and less than one sector.

The first data stored in the information recording / reproducing apparatus 1
A method for confirming whether or not the drive device 5 is within the reference value (whether the performance is good or bad) will be described with reference to FIG. The following determination is made when the first drive device 5 is first set in the information recording / reproducing device 1, after a certain period of use, and / or at a designated date and time.

At step 11, the personal computer 20 is connected to the information recording / reproducing apparatus 1, and the personal computer 20 and the information recording / reproducing apparatus 1 are turned on. The inspection execution program is started by the personal computer 20, and the storage device 15 in the information recording / reproducing apparatus 1 is transported to the first drive device 5 (STEP 12).
3.

Step 14 of providing a counter for the number of times of drive determination in the memory 10 in the information recording / reproducing apparatus 1 and adding 1 to the counter value N. Predetermined data recorded on the storage disk 15 is copied to, for example, the HDD 21 in a personal computer, and STEP 15, and the copied data is stored in the storage disk 1.
STEP16 to be written in 5 At this time, the writing area is
When it is set for the first time, it is written in the area next to the predetermined data + initial replacement sector shown in FIG.

Here, the predetermined data is once stored in the HD of the personal computer.
Even if the data read from the storage disk 15 is not copied to the
May be temporarily stored in the storage disk 15.

After the predetermined data is written to the storage disk 15, replacement sector information, which is the number of replacement sectors generated on the storage disk 15 at the time of writing, is obtained.
7. Step 18 for recording the obtained replacement sector information on the disk 15 as replacement sector N information. .., N-1 are sequentially read out, and further, information on the replacement sector N (where N is the number of times of writing to the disk 15) is read out, and the memory 10 in the information recording / reproducing apparatus 1 is read out.
STEP19 to be stored in.

Initial replacement sector information and replacement sector 1,...
STEP 20, comparing the N information to determine whether the first drive device 5 is within the specified value. Pass if within the rules
STEP22, which is rejected if it is out of the specified range.

In the above description, the number of spare sectors after recording is recorded in the memory 10 in the information recording / reproducing apparatus 1. However, the difference between the number of spare sectors after recording and the number of spare sectors in the initial state is determined. May be calculated by the CPU 9 and stored in the storage disk 15.

Next, using the results obtained in the above procedure, a method for determining whether or not the first drive device 5 is within a predetermined value (whether or not the performance is good) is shown in Tables 1 to 3. This will be described with reference to FIG.

.., N read from the memory 10 in the information recording / reproducing apparatus 1 on the storage disk 15 and the number of replacement sectors (N) / the number of replacement sectors ( N-1) Number of replacement sectors (N) / Number of replacement sectors (N-2) ... Number of replacement sectors (N) / Number of replacement sectors (1) Number of replacement sectors (N) / Number of initial replacement sectors (However, , N are integer suffixes) are calculated by the CPU 9 in the information recording / reproducing apparatus 1. If the number of alternate sectors to divide is zero, division cannot be performed.
The calculation is executed with the number of replacement sectors = 1, and the decimal part is rounded off.

[0039]

(Equation 1) As shown in Table 1, the inspection result at the time of the fifth periodic inspection (N = 5) indicates that the number of replacement sectors (N = 5) is ten. The calculation result is as shown in Table 2, and the number of replacement sectors (5)
/ The number of replacement sectors is "10 times", the number of replacement sectors (5) / The number of replacement sectors (4) is "1", and (number of replacement sectors (5) / number of initial replacement sectors)-(number of replacement sectors)
Since (5) / number of replacement sectors (4)) = 9, it can be determined that the number of replacement sectors is not increasing rapidly but increasing gradually.

On the other hand, as shown in Table 1, the sixth periodic inspection (N =
The inspection result at the point 6) indicates that the number of replacement sectors (N = 6) is 50. The calculation results are as shown in Table 3. The number of replacement sectors (6) / the number of initial replacement sectors is "50
The number of replacement sectors (6) / the number of replacement sectors (5) becomes "5 times", and the number of replacement sectors (6) / the number of initial replacement sectors)-(the number of replacement sectors (6) / the number of replacement sectors (5) )) = 4
Since it is 5, for example, if the determination value is 30 or more, it can be determined that the number of replacement sectors has increased rapidly, and it is determined that the number of replacement sectors is equal to or more than the specified value and is rejected.

In addition to the above-described determination method, a method may be used in which the case where the number of replacement sectors as a result of the inspection is larger than a predetermined threshold value than the initial number of replacement sectors is larger than a predetermined threshold value is determined as bad, and the case where it is not so is determined as good. good.

According to the method of the present embodiment described above, the number of initial replacement sectors and the replacement sector information for each use for a certain period of time are recorded on the storage disk 15, and these replacement sector information are compared to record / reproduce information. It is possible to determine whether the recording / reproducing devices (drive devices) 5, 6, 7, and 8 in the device 1 are within specified values.

At the time of the inspection, no special preparation work for the inspection is required, such as removing the drive device to be inspected, setting and connecting an inspection jig and a measuring device, etc., and the operation is easy and at an arbitrary timing. The information recording / reproducing apparatus 1 can perform an automatic diagnosis, and the test results over time are reliably stored, so that it is easy to grasp a temporal change in performance. It has the effect.

In this embodiment, the storage disk 15 used for inspection is usually stored in a disk case in the apparatus 1 and is used fixedly for inspection, so that variations in disk quality do not affect the inspection result. Highly accurate inspection results can be obtained.

Next, an information recording / reproducing apparatus 1 according to a second embodiment of the present invention, which has a different configuration from the above, will be described with reference to FIGS.
This will be described with reference to FIG. The components performing the same operations as those of the first embodiment described above are denoted by the same reference numerals, and description thereof will be omitted.
In FIG. 4, which is a configuration diagram of the present embodiment, the important points that the information recording / reproducing apparatus 1 differs from the first embodiment described above are as follows.
Disk cases 11, 12, 1 in the information recording / reproducing device 1
For example, the storage disk 15 is stored at address 1 and the confirmation disk 16 is stored at address 2.

The data recorded on the storage disk 15 is the same as that of the first embodiment, and a description thereof will be omitted.

The first information stored in the information recording / reproducing apparatus 1
A method for confirming whether or not the drive device 5 is within the reference value will be described with reference to FIG. The following determination is made when the first drive device 5 is first set in the information recording / reproducing device 1, after a certain period of use, and / or at a designated date and time.

At step 30, the personal computer 20 is connected to the information recording / reproducing apparatus 1 and the power of the personal computer 20 and the information recording / reproducing apparatus 1 is turned on. The test execution program is started by the personal computer 20 and the step 31 is carried out, and the storage disk 15 in the information recording / reproducing apparatus 1 is transported to the first drive 5
32.

Step 33 for providing a counter for the number of times of drive determination in the memory 10 in the information recording / reproducing apparatus and adding 1 to the counter value N. The predetermined data recorded on the storage disk 15 is copied to, for example, the HDD 21 in the personal computer 20, and the recorded initial replacement sector is read out.
STEP3 to temporarily save in HDD21 in personal computer 20
4.

The storage disk 15 is replaced with the disk case 13
Return to STEP 35, and carry the confirmation disk 16 to the first drive device 5 (STEP 36). STEP 3 of writing data copied to HDD 21 to confirmation disk 16
7.

At this time, when the area to be written is set for the first time, it is set to the first area, and after a certain period of use,
Write data outside the area where the data that was set first was written.

After the predetermined data has been written to the confirmation disk 16, the replacement sector information of the confirmation disk 16 is obtained, and STEP 38, and the obtained replacement sector information is stored in the disk 16.
STEP 39 for recording as replacement sector N information.

Next, the initial replacement sector information and the replacement sector 1,
.., STE for sequentially reading N-1 and further reading the replacement sector N information and storing it in a memory in the information recording / reproducing apparatus
P40. Initial replacement sector information and replacement sector 1,...
STEP 41, comparing the N information, and STEP 42 for determining whether the first drive device 5 is within a specified value. If the condition is not stipulated, it is judged as pass STEP43.
EP44.

In the above description, the number of spare sectors after recording is recorded in the memory 10 in the information recording / reproducing apparatus 1. The difference between the number of spare sectors after recording and the number of spare sectors in the initial state is determined. May be calculated by the CPU 9 and recorded on the confirmation disk 16. The method of determining whether or not the first drive device 5 is within a predetermined value is the same as that of the first embodiment, and thus the description is omitted.

According to the above method, the storage disk 15
In addition, the number of initial replacement sectors is recorded on the disc, and the replacement sector information for each use for a certain period of time is recorded on the confirmation disk 16, and the replacement sector information is compared. Device) is within the specified value.

Therefore, the same effect as that of the first embodiment described above is exhibited, and the disk for recording the initial data and the disk for recording the inspection result data to be sequentially executed are separated, so that the initial data The effect that maintenance becomes easier, for example, it is possible to easily update only the new numerical value or replace the disk with a new disk when the test result recording data becomes full with respect to the disk capacity. Is added.

[0057]

As described in detail above, the present invention uses a specific optical disk among a large number of optical disks to be stored as an inspection disk when inspecting the recording function of the recording / reproducing unit. Generated on the inspection disk side,
Detecting the number of occurrences of replacement sectors that are replacement sectors for defective sectors in which inspection information cannot be written, and determining whether the recording function of the recording / reproducing unit is good or bad according to the detection result. Inspection can be performed easily and at any timing with good workability.
In addition, it is possible to provide a test method and an information recording / reproducing apparatus for an information recording / reproducing apparatus which can perform a self-diagnosis, obtain a reliable test result, and easily grasp the test result over time.

[Brief description of the drawings]

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

FIG. 2 is an explanatory diagram of a recording structure of a storage disk used for inspection by the apparatus of FIG. 1;

FIG. 3 is a flowchart of a test performed by the apparatus of FIG. 1;

FIG. 4 is a configuration diagram of a second embodiment of the information recording / reproducing apparatus of the present invention.

FIG. 5 is a flowchart of a test performed by the apparatus of FIG. 4;

FIG. 6 is a configuration diagram of a conventional information recording / reproducing device.

FIG. 7 is a flowchart of a test performed by the apparatus of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Information recording / reproducing apparatus (apparatus) 3 Disk moving apparatus (conveying means) 5, 6, 7, 8 Drive apparatus (recording / reproducing part) 9 Control CPU (control means) 11, 12, 13 Disk case (storage means) 14 Disk (optical disk) 15 Storage disk (disk for inspection) 16 Disk for confirmation (disk for inspection) 20 Personal computer (control means)

Claims (5)

[Claims] An information recording / reproducing apparatus having at least one recording / reproducing section for recording / reproducing information using an optical disk accommodated in a plurality of optical discs in the apparatus determines whether or not the recording function of the recording / reproducing section is good. Test method, and a specific optical disk among the plurality of optical disks is used as an inspection disk when inspecting the recording function of the recording / reproducing unit, and at the time of this inspection, the inspection disk side is used. The information recording / reproducing apparatus of the present invention detects the number of occurrences of replacement sectors, which are substitute sectors for defective sectors in which inspection information cannot be written, and determines whether or not the recording function of the recording / reproducing unit is good based on the detection result. An inspection method, wherein the number of occurrences of replacement sectors that occur when recording inspection information on an inspection disk mounted on an inspection recording / reproducing unit is detected,
An inspection information acquiring step of recording the number of occurrences of the replacement sectors as inspection acquisition information in a specific area of the inspection disk; and a reference for judging whether or not the recording function of the recording and reproduction unit to be inspected is good or not. The reference information relating to the number of occurrences of the replacement sector is compared, and when the test acquisition information is less than the reference information, the recording function of the recording and reproduction unit to be inspected is determined to be good, and the test acquisition information is equal to or higher than the reference information. And a determining step of determining that the recording function of the recording / reproducing unit to be inspected is defective. 2. The inspection method for an information recording / reproducing apparatus according to claim 1, wherein the inspection disc has an inspection information recording area in which the inspection information is recorded in advance, and an inspection acquisition information recording area for recording the inspection acquisition information. An inspection method for an information recording / reproducing apparatus, comprising: 3. A storage unit for storing a plurality of optical disks so that they can be inserted and removed, at least one recording and reproducing unit for recording and reproducing information using the optical disk, and the storing unit and the recording and reproducing unit. An information recording / reproducing apparatus, comprising: transport means for alternately transporting the optical disk between the control means; and at least control means for controlling the recording / reproducing operation of the recording / reproducing means and the transport operation of the transport means. The means uses a specific optical disk among the plurality of optical disks as an inspection disk when inspecting the recording function of the recording and reproducing means, and generates inspection information generated on the inspection disk side at the time of this inspection. The number of occurrences of replacement sectors, which are substitute sectors for the non-writable bad sectors, is recorded as test acquisition information in a specific area of the test disk. The test acquisition information is compared with reference information on the number of occurrences of replacement sectors, which is used as a criterion for judging the quality of the recording function of the test recording and reproducing means. An information recording / reproducing apparatus, wherein the recording function of the reproducing means is determined to be good, and when the test acquisition information is equal to or greater than the reference information, the recording function of the recording / reproducing means to be inspected is determined to be defective. 4. The inspection method for an information recording / reproducing apparatus according to claim 1, wherein the inspection information written on the inspection disk at the time of inspection is recorded in a recording area of the inspection disk. An inspection method for an information recording / reproducing apparatus, having a capacity of not less than half of one sector and not more than one sector. 5. The information recording / reproducing apparatus according to claim 3, wherein the inspection information written on the inspection disk at the time of inspection is at least half of one sector and at most one sector in a recording area of the inspection disk. An information recording / reproducing apparatus having a capacity of: