JP2006004482A - Information recording/reproducing device and performance determination testing medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information recording/reproducing device capable of executing self diagnosis without dependence on a host device, and a performance determination testing medium. <P>SOLUTION: The performance determination testing medium having a recorded area 102 and an unrecorded area 103 is used, performance determination testing data is read from the recorded area 102 in the performance determination testing of the information recording/reproducing device, and the data is temporarily stored in a buffer memory, whereby the performance testing is carried out without making any performance determination test data in the information recording/reproducing device. Since the performance determination testing result is recorded in the performance determination testing medium, the medium is loaded into another information recording/reproducing device to determine the success of a performance determination testing result. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information recording / reproducing apparatus and information recording / reproducing medium for recording information on an optical disk medium or the like using a laser beam, and in particular, an information recording / reproducing apparatus and a performance determination test medium capable of performing self-diagnosis without using a host device. About.

  In recent years, optical discs are widely used as information recording / reproducing devices at a low price. Along with this, the optical disc is required to have a self-diagnosis function that does not rely on a host device for productivity improvement and failure analysis at a customer site.

  Patent Document 1 enables quick self-diagnosis by determining whether writing to and reading from an information recording medium is correct during hardware and software initialization processing, and improves operability and reliability of self-diagnosis. The proposed information recording apparatus is proposed.

Patent Document 2 proposes a playback apparatus that does not have a control panel and can perform self-diagnosis independently without being connected to a host computer using a self-diagnosis medium.
JP-A-5-28660 JP 2002-117632 A

  However, the above invention has the following problems.

  When performing a self-diagnosis in a conventional information recording / reproducing apparatus, it is necessary to create a self-diagnosis program in the information recording / reproducing apparatus in order to reproduce the self-diagnosis program without a host device. Further, it takes time to generate a complicated self-diagnosis program on the memory. Further, when the self-diagnosis program and the self-diagnosis result are created in the information recording / reproducing apparatus when evaluating the self-diagnosis result, the self-diagnosis result cannot be evaluated in another information recording / reproducing apparatus.

  Therefore, the present invention can store a self-diagnosis program temporarily in a buffer memory and execute the self-diagnosis program without creating a self-diagnosis program in the information recording / reproducing apparatus. An object of the present invention is to provide an information recording / reproducing apparatus and a performance determination test medium.

  According to the first aspect of the present invention, the performance determination test data of a performance determination test medium having a recorded area and an unrecorded area in which performance determination test data relating to a performance determination test for diagnosing the performance of the information recording / reproducing apparatus is recorded. An information recording / reproducing apparatus having a reproducing means for reproducing the performance judgment test data and the performance judgment test result temporarily, the performance judgment test data stored in the storage means, Comparing means for comparing the result of the performance judgment test, the comparison result by the comparison means, information relating to the performance judgment test, and a document for writing the performance judgment test result of the performance judgment test data by the reproducing means to the unrecorded area And a judging means for judging the performance of the information recording / reproducing apparatus based on the comparison result obtained by the comparing means. To.

  According to a second aspect of the present invention, in the information recording / reproducing apparatus according to the first aspect, the comparison unit includes a detection unit that detects an error included in the performance determination test result based on the performance determination test data. The number of errors detected by the detecting means is used as the comparison result.

  According to a third aspect of the present invention, in the information recording / reproducing apparatus according to the second aspect, the determination unit determines that the information recording / reproducing apparatus has no abnormality when the number of errors is smaller than a criterion. To do.

  According to a fourth aspect of the present invention, in the information recording / reproducing apparatus according to the second aspect, when the number of errors is smaller than a criterion for determination, the determination unit records the number of errors and other information recorded in the unrecorded area. A first calculating means for calculating a difference between the number of errors in the performance judgment test in the information recording / reproducing apparatus, and the information recording / reproducing apparatus has no abnormality when the difference calculated by the first calculating means is less than a predetermined value. It is characterized by determining.

  According to a fifth aspect of the present invention, in the information recording / reproducing apparatus according to the second aspect, when the error number is smaller than a determination criterion, the determination unit records the error number and the past recorded in the unrecorded area. A second calculating unit that calculates a difference from the number of errors in the performance determination test performed; and the difference calculated by the second calculating unit is less than a predetermined value, the information recording / reproducing apparatus determines that there is no abnormality. It is characterized by that.

  According to a sixth aspect of the present invention, in the information recording / reproducing apparatus according to any one of the first to fifth aspects, the identification number of the information recording / reproducing apparatus that has reproduced the performance determination test data is information related to the performance determination test. It is included.

  According to a seventh aspect of the present invention, in the information recording / reproducing apparatus according to any one of the first to sixth aspects, an address of the performance judgment test data recorded in the recorded area in the information relating to the performance judgment test, and An address of the performance judgment test result is included.

  A performance determination test medium according to an eighth aspect of the present invention has a recorded area in which performance determination test data relating to a performance determination test for diagnosing the performance of the information recording / reproducing apparatus is recorded, and an unrecorded area.

  The invention described in claim 9 is the performance determination test medium according to claim 8, wherein a performance determination test result is recorded in the unrecorded area.

  According to a tenth aspect of the present invention, in the performance judgment test medium according to the eighth or ninth aspect, information relating to the performance judgment test is recorded in the unrecorded area.

  According to an eleventh aspect of the present invention, in the performance determination test medium according to the tenth aspect, the information relating to the performance determination test includes an identification number of the information recording / reproducing apparatus that has reproduced the performance determination test data. .

  According to a twelfth aspect of the present invention, in the performance determination test medium according to the tenth or eleventh aspect, an address of the performance determination test data recorded in the recorded area in the information related to the performance determination test and the performance determination test result Is included.

  According to a thirteenth aspect of the present invention, in the performance determination test medium according to any one of the eighth to twelfth aspects, the error of the performance determination test result detected in the unrecorded area based on the performance determination test data. The number is recorded as a comparison result between the performance determination test data and the performance determination test result.

  The present invention uses a performance determination test medium having a recorded area and an unrecorded area, reads performance determination test data from the recorded area during the performance determination test of the information recording / reproducing apparatus, and temporarily stores the data in the buffer memory. By storing, the performance judgment test can be executed without creating the performance judgment test data in the information recording / reproducing apparatus. In addition, since the performance determination test result is recorded in the performance determination test medium, it can be determined whether the performance determination test result is acceptable by replacing the medium with another information recording / reproducing apparatus. Furthermore, it can be compared with past performance determination test results, and the performance of the information recording / reproducing apparatus can be relatively evaluated.

  The present invention uses a performance determination test medium having a recorded area and an unrecorded area, reads performance determination test data from the recorded area during the performance determination test of the information recording / reproducing apparatus, and temporarily stores the data in the buffer memory. By storing, the performance judgment test is executed without creating the performance judgment test data in the information recording / reproducing apparatus. The performance judgment test result is recorded on the performance judgment test medium.

  A performance determination test medium to which the present invention shown in FIG. 1 is applied has a lead-in area 101, a recorded area 102, and an unrecorded area 103. In the lead-in area 101, management information of the performance judgment test medium is recorded. In the recorded area 102, performance determination test data used for the performance determination test is recorded. In the unrecorded area 103, management information of the performance judgment test, results of the performance judgment test, and the like are recorded.

  FIG. 2 is an example of use of the performance determination test medium shown in FIG. In the lead-in area 201, identification information of the performance determination test medium is recorded. The information recording / reproducing apparatus recognizes the identification information, loads performance judgment test data, and executes the performance judgment test. In the recorded area 202, performance determination test data is recorded.

  FIG. 3 shows an example of storing the performance judgment test data recorded in the recorded area 202. The recorded area 202 is divided by 100h between addresses 30000h to 40000h.

  In the management information area 203 shown in FIG. 2, performance judgment test management information, performance judgment test results, and the like are recorded. FIG. 4 shows an example of storing the performance judgment test result recorded in the management information area 203. The management information area 203 is divided into data areas of 100h between addresses 40000h and 50000h. Each time the performance judgment test is executed, management information of the performance judgment test and the performance judgment test result are recorded in each data area.

  An example in which the performance judgment test result is recorded in each data area of the management information area 203 is shown in FIG. Each data area of 100h is divided into a recording area for information related to recording of performance judgment test data in the buffer memory and a reproduction area for recording performance judgment test results, and 100h information for one recording / reproducing operation. Is recorded. When only performance determination test data is recorded, only information when performance determination test data is recorded is recorded. When only the reproduction operation is performed, the performance judgment test result is recorded. In the recording area, the drive number 501, F / W revision 502, recording source data start address 503, recording source data end address 504, recording data destination start address 505, recording data destination end address 506, seek error number 507, servo out The number of errors 508, the recording interruption address 509, the required recording time 510, and the Reserved 511 are recorded.

  The drive number 501 is a number unique to the information recording / reproducing apparatus that has performed the performance determination test. The F / W revision 502 is a firmware revision number stored in the information recording / reproducing apparatus. The recording source data start address 503 and the recording source data end address 504 are addresses of performance determination test data recorded in the recorded area 202. The recording data destination start address 505 and the recording data destination end address 506 are addresses of areas used in the performance determination test. The number of seek errors 507 and the number of servo detachment errors 508 are the number of times that a seek error and a servo detachment error have occurred during the recording operation. The recording interruption address 509 is an address at which recording is interrupted when the recording operation cannot be completed due to an error or the like. The required recording time 510 is the time required for the recording operation. Reserved 511 is an unused area.

  On the other hand, in the playback area, drive number 512, F / W revision 513, read error number 514, seek error number 515, servo out error number 516, read retry number 517, PI error number 518, compare error number 519, playback required Time 520, Reserved 530 is recorded.

  The drive number 512 is a number unique to the information recording / reproducing apparatus that has performed the performance determination test. F / W revision 513 is the revision number of the firmware stored in the information recording / reproducing apparatus. The read error number 514, seek error number 515, and servo out error number 516 are the number of read errors, seek errors, and servo out errors when the recording data destination start address 505 and the recording data destination end address 506 are reproduced. The read retry number 517 is the number of times the recording data destination start address 505 and the recording data destination end address 506 have been read. The PI error number 518 is the number of PI errors that occur when the recording data destination start address 505 and the recording data destination end address 506 are reproduced, or the average value of PI errors per sector. The number of comparison errors 519 is the number of errors when comparing the sex determination test and the performance determination test result of the recorded data destination start address 505 and the recorded data destination end address 506. The reproduction required time 520 is a time required for the reproduction operation. Reserved 530 is an unused area.

  FIG. 6 is a block diagram of an information recording / reproducing apparatus to which the present invention is applied. The information recording / reproducing apparatus includes a performance determination test medium 601 to which the present invention is applied, a pickup unit 602, an analog front end 603, a digital LSI 604, a buffer memory 605, an external I / F 606, an MPU 607, and a performance determination test processing unit 608. . The pickup unit 602 includes an optical lens, a semiconductor laser, a photodiode, and the like. The analog front end 603 processes an analog signal. The digital LSI 604 processes a digital signal. The buffer memory 605 temporarily stores data. The external I / F 606 communicates with the host device. Note that the information recording / reproducing apparatus to which the present invention is applied does not use the external I / F 606 because the performance determination test is performed without performing communication with the host apparatus. The performance determination test processing unit 608 may be either software processing or hardware processing, but is software processing in this embodiment.

  FIG. 7 shows a configuration example of the buffer memory 605 that temporarily stores the performance judgment test data recorded in the recorded area 202 when the performance judgment test is performed. The buffer memory 605 is divided into 31 blocks. Blocks 0 to 15 are recorded / reproduced data storage buffer blocks for recording performance determination test data recorded in the recorded area 202. On the other hand, the blocks 16 to 31 are recording / reproducing data storage buffer blocks for recording the performance judgment test results. Specifically, the information recording apparatus stores performance determination test data stored in the performance determination test medium in blocks 1 to 15 at the start of the performance determination test. Next, the results are recorded in blocks 16 to 31 after the performance judgment test. Then, a data compare for comparing the data stored in the blocks 1 to 15 with the data recorded in the blocks 16 to 31 is performed. In this embodiment, since the number of recorded / reproduced data storage buffer blocks is 16, data comparison after the performance judgment test is executed 16 blocks at a time. When 16 blocks of recorded / reproduced data are repeatedly used, reproduction and data comparison may be performed after all recording is completed.

  FIG. 8 shows a flowchart of a performance judgment test in the information recording / reproducing apparatus. First, the performance determination test data recorded in the recorded area 202 of the performance determination test medium is read (step S801). The read performance determination test data is temporarily stored in the buffer memory 605 (step S802). Next, the performance determination test data stored in the buffer memory 605 is reproduced, and the performance determination test result is recorded as test information in the buffer memory 605 and the management information area 203 (step S803). When the test information is recorded in the buffer memory 605 and the management information area 203, the test information stored in the buffer memory 605 is compared with the performance determination test data (step S804). The comparison result between the test information and the performance determination test data is recorded in the management information area 203 (step S805), and the pass / fail of the performance determination test is determined based on the comparison result (step S806).

  FIG. 9 shows the processing when the performance judgment test result is recorded on the performance judgment test medium, the performance judgment test medium is ejected from the information recording / reproducing apparatus, and the performance judgment test is judged by another information recording / reproducing apparatus. A flowchart is shown. First, the performance judgment test data recorded in the recorded area 202 of the performance judgment test medium is read (step S901), and the data is recorded in the buffer memory 605 (step S902). The data recorded in the buffer memory 605 is reproduced in the information recording / reproducing apparatus. The performance determination test result is recorded as test information in the buffer memory 605 and the management information area 203 (step S903). Here, the user takes out the performance determination test medium from the information recording / reproducing apparatus (step S904), and reproduces the performance determination test medium in another information recording / reproducing apparatus (step S905). The information recording / reproducing apparatus into which the performance judgment test medium is inserted reads the test information recorded in the management information area 203 and the performance judgment test data recorded in the recorded area 202, and the test information, the performance judgment test data, Is stored in the buffer memory 605. Then, the test information is compared with the performance determination test data (step S907). The comparison result is recorded in the management information area 203 (step S908). The information recording / reproducing apparatus determines pass / fail of the performance determination test based on the comparison result (step S909).

  FIG. 10 shows a flowchart of processing when two information recording / reproducing devices are used and the performance judgment test medium is transferred to one information recording / reproducing device during the performance judgment test. First, the performance judgment test data recorded in the recorded area 202 of the performance judgment test medium is read by each of the first device and the second device (steps S1001 and S1010), and the buffer memory of each device is read. 605 is recorded (step S1002, step S1011). The performance determination test data recorded in the buffer memory 605 of each device is reproduced by each device. The performance determination test result in each device is recorded as test information in the buffer memory 605 and the management information area 203 of each device (steps S1003 and S1012). Here, the user replaces the performance determination test medium inserted in each device (step S1004, step S1005, step S1013, step S1014). Each apparatus reads the test information recorded in the management information area 203 of the performance determination test medium and the performance determination test data in the recorded area 202 (step S1006, step S1015), and stores the test information and the performance determination test data for each. Store in the buffer memory 605 of the device. Next, the test information is compared with the performance determination test data (steps S1007 and S1016). The comparison result is recorded in the management information area 203 of the performance determination test medium inserted in each device (steps S1008 and S1017). Each device determines pass / fail of the performance determination test based on the comparison result (steps S1009 and S1018).

  That is, according to the processing shown in FIGS. 9 and 10, the pass / fail of the performance determination test result can be evaluated in another information recording / reproducing apparatus. In addition, since the performance judgment test results are stored in the performance judgment test medium, the performance of the information recording / reproducing apparatus is deteriorated or the performance is deteriorated by using the performance judgment test results in other information recording / reproducing apparatuses or the past performance judgment test results. Can be detected.

  Next, processing for determining pass / fail of the performance determination test using the comparison result in step S806 in FIG. 8 will be described with reference to FIG. First, the comparison result recorded in the management information area 203 is read (step S1101). Here, when an error occurs in the comparison result reading operation (step S1101 / NO), the pass / fail determination process ends as an abnormality is found in the performance determination test. On the other hand, when the comparison result is read (step S1101 / YES), pass / fail is determined using the determination criterion for the number of PI errors (step S1102). When the number of PI errors is smaller than the criterion, the process ends normally (step S1102 / YES). If the number of PI errors exceeds the determination criterion (step S1102 / NO), the pass / fail determination process ends as an abnormality is found in the performance determination test.

  FIG. 12 is a flowchart when the pass / fail determination process is performed using another information recording / reproducing apparatus that is not the information recording / reproducing apparatus that has performed the performance determination test. First, the comparison result recorded in the management information area 203 is read (step S1201). Here, when an error occurs in the comparison result reading operation (step S1201 / NO), the pass / fail determination process ends as an abnormality is found in the performance determination test. On the other hand, when the comparison result is read (step S1201 / YES), pass / fail determination is performed using the PI error number determination criterion (step S1202). When the number of PI errors is smaller than the judgment criterion (step S1202 / YES), the difference between the number of PI errors and the number of PI errors in the performance judgment test performed in another information recording / reproducing apparatus recorded on the performance judgment test medium And the pass / fail of the performance judgment test result is judged from the difference. When the number of PI errors exceeds the determination criterion (step S1202 / NO), the pass / fail determination process ends as an abnormality is found in the performance determination test. If the calculated difference is equal to or smaller than the predetermined value (step S1203 / YES), the pass / fail determination process is terminated as no abnormality is found in the performance determination test. On the other hand, when the calculated difference is larger than the predetermined value (step S1203 / NO), the pass / fail determination process ends as an abnormality is found in the performance determination test.

  FIG. 13 is a flowchart in the case where the pass / fail determination process is performed using the performance determination test results performed in the past. First, the comparison result recorded in the management information area 203 is read (step S1301). Here, when an error occurs in the comparison result read operation (step S1301 / NO), the pass / fail determination process ends as an abnormality is found in the performance determination test. On the other hand, when the comparison result is read (step S1301 / YES), pass / fail judgment is performed using the PI error number judgment criterion (step S1302). When the number of PI errors is smaller than the criterion (step S1302 / YES), the difference between the PI error number and the PI error number of the comparison result when the performance judgment test was performed in the past is calculated. The pass / fail of the performance judgment test result is judged from the difference. When the number of PI errors exceeds the determination criterion (step S1302 / NO), the pass / fail determination process ends as an abnormality is found in the performance determination test. If the calculated difference is less than or equal to the predetermined value (step S1303 / YES), the pass / fail determination process ends as if no abnormality was found in the performance determination test. On the other hand, if the calculated difference is larger than the predetermined value (step S1303 / NO), the pass / fail determination process ends as an abnormality is found in the performance determination test.

It is a figure which shows the structure of the performance determination test medium to which this invention is applied. It is a figure which shows the usage example of the performance determination test medium to which this invention is applied. It is a figure which shows the example of storage of a performance determination test program. It is a figure which shows the example of storage of a performance determination test result. It is a figure which shows the example of storage of a performance determination test result. It is a figure which shows the structure of the information recording / reproducing apparatus to which this invention is applied. It is a figure which shows the structure of the buffer memory which the information recording / reproducing apparatus to which this invention is applied has. It is a flowchart which shows the Example of a performance determination test. It is a flowchart which shows the Example of a performance determination test. It is a flowchart which shows the Example of a performance determination test. It is a flowchart of the pass / fail determination process of a performance determination test result. It is a flowchart of the pass / fail determination process of a performance determination test result. It is a flowchart of the pass / fail determination process of the self-diagnosis process result.

Explanation of symbols

101, 201 Lead-in area 102, 202 Recorded area 103 Unrecorded area 203 Management information area 204 Recorded area 1
205 Recorded area 2
206 Recorded area 3
601 Performance determination test medium 602 Pickup unit 603 Analog front end 604 Digital LSI
605 Buffer memory 606 External I / F
607 MPU
608 Performance judgment test processor

Claims (13)

Information having reproduction means for reproducing the performance determination test data of a performance determination test medium having a recorded area and an unrecorded area in which performance determination test data relating to a performance determination test for diagnosing the performance of the information recording / reproducing apparatus is recorded A recording / reproducing apparatus,
Storage means for temporarily storing the performance determination test data and the performance determination test results;
Comparison means for comparing the performance determination test data stored in the storage means with the performance determination test results;
A writing unit for writing the comparison result by the comparison unit, information on the performance determination test, and the performance determination test result of the performance determination test data by the reproducing unit in the unrecorded area;
An information recording / reproducing apparatus comprising: determining means for determining the performance of the information recording / reproducing apparatus based on a comparison result obtained by the comparing means. The comparison means includes
Detecting means for detecting an error of the performance determination test result based on the performance determination test data;
2. The information recording / reproducing apparatus according to claim 1, wherein the number of errors detected by the detecting means is used as the comparison result.   3. The information recording / reproducing apparatus according to claim 2, wherein the determination unit determines that the information recording / reproducing apparatus has no abnormality when the number of errors is smaller than a criterion. The determination means includes
First calculation means for calculating a difference between the number of errors and the number of errors in a performance determination test in another information recording / reproducing apparatus recorded in the unrecorded area when the number of errors is smaller than a determination criterion;
3. The information recording / reproducing apparatus according to claim 2, wherein when the difference calculated by the first calculating means is less than a predetermined value, the information recording / reproducing apparatus determines that there is no abnormality. The determination means includes
A second calculating means for calculating a difference between the number of errors and the number of errors in a performance determination test performed in the past recorded in the unrecorded area when the number of errors is smaller than a determination criterion;
3. The information recording / reproducing apparatus according to claim 2, wherein when the difference calculated by the second calculating means is less than a predetermined value, the information recording / reproducing apparatus determines that there is no abnormality.   6. The information recording / reproducing apparatus according to claim 1, wherein the information relating to the performance judgment test includes an identification number of the information recording / reproducing apparatus that has reproduced the performance judgment test data.   7. The information on the performance judgment test includes an address of the performance judgment test data recorded in the recorded area and an address of the performance judgment test result. Information recording / reproducing apparatus. An already recorded area in which performance judgment test data relating to a performance judgment test for diagnosing the performance of the information recording / reproducing apparatus is recorded;
A performance determination test medium having an unrecorded area.   9. The performance determination test medium according to claim 8, wherein a performance determination test result is recorded in the unrecorded area.   10. The performance determination test medium according to claim 8, wherein information relating to the performance determination test is recorded in the unrecorded area.   11. The performance determination test medium according to claim 10, wherein the information related to the performance determination test includes an identification number of the information recording / reproducing apparatus that has reproduced the performance determination test data.   12. The performance determination test medium according to claim 10, wherein the information on the performance determination test includes an address of the performance determination test data recorded in the recorded area and an address of the performance determination test result. .   The number of errors of the performance determination test result detected based on the performance determination test data is recorded in the unrecorded area as a comparison result between the performance determination test data and the performance determination test result. The performance determination test medium according to any one of claims 8 to 12.

Images