JPH08106731A - Disk recording reproducing device - Google Patents

Abstract

PURPOSE: To improve reliability on data conservation from both sides of hardware (a disk recording reproducer) and a recording medium (a disk) in these days when the disk is spread as the information recording medium and information is processed easily. CONSTITUTION: When the error level of error information 101 obtained by a disk reproducing means 10 is higher than a specified level, an error decision means 20 outputs an error command 102. A serial-number registration means 50 receives the error command 102 and reads a serial number 104 from the disk reproducing means 10, and increments the number of previous registration 106 and registers the incremented number in a memory means 70. A display command generating means 60 reads the number of registration 106, in which the reproduced serial number of a disk is registered in the memory means 70, and generates a display command 107 when the number 106 exceeds a fixed value and informs a user of the low reliability of the disk by a display means 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc recording / reproducing apparatus for recording / reproducing information using an exchangeable disc as a medium.

[0002]

2. Description of the Related Art In recent years, compact discs in which audio signals are converted into digital signals and recorded are becoming popular. Further, due to the data compression technology and the improvement of the recording density on the disc, the exchangeable disc has an increased recording capacity, is used in various fields, and is used more frequently. Under such circumstances, it is desired to improve the reliability of the exchangeable disc and the disc recording / reproducing device.

A conventional disk recording / reproducing apparatus will be described below with reference to FIGS. 5, 6 and 7. 5, 6 and 7 are block diagrams of a conventional disc recording / reproducing apparatus. In FIG. 5, the disc reproducing means 1 generates error information 101 and outputs it to the error judging means 2 when an error occurs during disc reproduction. The error determination means 2 is
When the error level of the error information 101 exceeds a predetermined error level, the error command 102 is output. The display means 3 receives the error command 102 and displays a predetermined error.

Further, in FIG. 6, the disc reproducing means 1
Outputs error information 101 to the error determination means 20 when an error occurs during disk reproduction. Similarly, the disc recording unit 4 outputs the error information 103 when an error occurs during recording on the disc. The error determination means 20 determines when the error level obtained from the error information 101 exceeds a predetermined error level and when the error information 1
When the error level obtained from 03 exceeds a predetermined error level, the error command 102 is output. The display means 3 receives the error command 102 and displays a predetermined error. Further, the disk recording means 4 receives the error command 102, and registers the area (for example, address) on the disk where the error command has occurred in a predetermined defective area registration position on the disk. Further, the disk recording means 4 does not record in the defective area registered in the above-mentioned predetermined defective area registration location.

Next, FIG. 7 will be described. In FIG. 7, the disc reproduction means 10 generates error information 101 when an error occurs during disc reproduction, and the error judgment means 2
Output to 0. Similarly, the disc recording means 40 generates error information 103 and outputs it to the error determination means 20 when an error occurs when recording data on the disc. The error determination means 20 outputs the error command 102 when the error level of the error information 101 or the error information 103 exceeds a predetermined error level. The display means 3 receives the error command 102 and displays a predetermined error. After the serial number registration means 5 receives the error command 102,
The serial number 104 is registered in the memory means 7.

[0006]

However, the above-mentioned conventional structure can deal with a local error which is difficult to record or reproduce due to a scratch or dust on the disk, but the deterioration of the material of the disk medium. Also, the problem of the disc itself such as deterioration of the fixed portion of the disc when fixing the disc to the disc recording / reproducing apparatus cannot be dealt with. Further, even if there is a problem on the disc recording / reproducing apparatus side, there is a possibility of making an erroneous decision that there is a problem with the disc, reducing the reliability of the disc and overlooking the abnormality of the disc recording / reproducing apparatus. Had the problem. Further, when solving the above problem, there is a problem that if the serial number is not registered in the abnormal disk, it is impossible for the disk recording / reproducing apparatus side to register the abnormal disk.

The present invention solves the above-mentioned problems of the prior art, and measures such as avoiding the use of an error-prone disc before the user loses recorded information or inspecting the disc recording / reproducing apparatus are taken. It is an object of the present invention to provide a highly reliable disc recording / reproducing device that can achieve the above.

[0008]

In order to solve the above-mentioned problems, a disk recording / reproducing apparatus of the present invention has a memory means for storing a serial number recorded on a disk and error information received from the disk reproducing means. An error judgment means for generating an error command when the error level is exceeded, and a serial number recorded on the disk being reproduced are read from the disk reproduction means upon receiving the error command, and then registered in the memory means. When the same serial number is already registered in the memory means, the serial number registration means for incrementing the registration number and re-registering it in the memory means, and the registration number of the serial number are read from the memory means, and the registration number is equal to or more than a predetermined number. In the case of, the display command generating means for generating the display command and the display means for receiving the display command have been described above. Displays title, and has a structure to notify the user that the disc currently or in a recording during playback is frequently an error in the past.

Further, the serial number registration means increments the number of consecutive new registrations written in the memory means when newly registering the serial number not registered in the memory means into the memory means, and also gives an error command. When a disc that does not occur is played back, the number of consecutive new registrations written in the memory means is cleared, and if there is an abnormality on the disc recording / playback device side, it is determined that the disc to be used has a continuous problem. Then, the display command generation means outputs the display command to the display means, and the display means displays the fact that there is a problem on the side of the disk recording / reproducing apparatus to inform the user of the above-mentioned contents.

[0010]

According to the present invention, with the above-described structure, when an error that exceeds a predetermined error level occurs during recording and reproducing using a disc having a problem, the error recording frequency of the disc is recorded. By storing it on the playback device side, it is possible to use the unreliability of the disc currently in use by using the display means before an error of a level causing the loss of recorded information occurs. Inform the person. If there is a problem on the disc recording / playback device side, an error exceeding the above specified error level will occur even if a normal disc is used. In that case, the number of discs newly registered as error discs. Are counted using the memory means, and the display command generating means detects that the number of consecutive new registrations counted in the memory means exceeds a predetermined number, and informs that the reliability of the disk recording / reproducing apparatus is low. It will be.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a block diagram of a disk recording / reproducing apparatus according to a first embodiment of the present invention. In FIG. 1, the same components and operations as those of the conventional example are designated by the same reference numerals, and the description thereof will be omitted. In FIG. 1, the serial number registration means 50 receives the error command 102, reads the registration number 106 of the serial number 104 registered in the non-volatile memory means 70, increments the registration number 106, and stores it as the serial number information 105 in the memory. Write in the means 70. The display command generating means 60 determines the number of registrations 106 of the serial number 104 of the disc currently being reproduced.
Is read from the memory means 70, and when the number of registrations 106 exceeds a predetermined comparison value, a display command 107 is issued, and the display means 30 indicates "there is an error in the reproduction disk".
And the like are displayed. Also, the disc reproducing means 1
0 reads the serial number 104 registered in the disk immediately after inserting the disk, and the serial number registration means 50 outputs the serial number 104 of the disk from which data is to be recorded or reproduced to the memory means 70 as the serial number information 105. To do. The memory means 70 outputs the registration number 106 of the serial number 104, and the display instruction generation means 60 displays the display instruction 1 when the serial number registration number 106 exceeds a predetermined comparison value.
Issue 07.

FIG. 2 is a block diagram of a disc recording / reproducing apparatus according to the second embodiment of the present invention, and FIG. 3 shows a process of counting the number of consecutive new registrations of the disc recording / reproducing apparatus according to the second embodiment of the present invention. It is the schematic diagram shown.

In FIG. 2, serial number registration means 51
Receives the error command 102, and the registration number 106 of the serial number 104 registered in the non-volatile memory means 71.
If the number of registrations is 0, that is, if the serial number 104 of the disc currently being reproduced is not registered in the memory means 71, the continuous new registration number 110 written in the memory means 71 is incremented and the memory is stored. Reregister to the means 71. Further, the serial number registration means 51 clears the continuous new registration count 110 when a normal disk in which no error command is issued is used during reproduction. The display command generation means 61 issues a display command 107 when the number 110 of consecutive new registrations read from the memory means 71 exceeds a predetermined number. The display means 31 receives the display command 107 and performs a predetermined display. Hereinafter, the above process will be described with reference to FIG. 2 and 3, the error command 102 is generated four times during the first reproduction, and the continuous new registration count 110 is 1. At the time of the second reproduction, since the error command generation number is 0, the continuous new registration number 110 is cleared and becomes 0. At this point, there is no problem on the disk recording / reproducing device side. In the third reproduction, the error command count becomes 5, and the continuous new registration count 110 is incremented to 1.
Similarly, at the time of the fourth reproduction, the error command is generated 26 times and the serial number 9 is registered for the first time, so the continuous new registration number 110 is incremented to 2 times. 5
Although the error command is generated 12 times in the reproduction of the third time, since the disc having the serial number 11 has already been registered in the reproduction of the third time, new registration is not performed and the continuous new registration number 110 remains 2 times. is there. At the time of the sixth reproduction, the error command occurrence count is 17, and the continuous new registration count 110 is 3. If the predetermined number of times that the display command generation means 61 uses as a comparison value is three times, the number of consecutive new registrations becomes the predetermined number or more at the time of the sixth reproduction, and the display command generation means 61 generates the display command 107 and displays it. Means 3
1 receives the display generation command 107 and performs a predetermined display to notify the user of the possibility of a problem on the side of the disk recording / reproducing device.

FIG. 4 is a block diagram of a disk recording / reproducing apparatus according to the third embodiment of the present invention. In FIG.
The components having the same configurations and operations as those of the conventional example are designated by the same reference numerals, and the description thereof will be omitted. In FIG. 4, after the serial number registration means 52 receives the error command 102 and detects that the disc being reproduced does not have the serial number 104, the serial number 108 currently registered from the nonvolatile memory means 72 is detected. Read memory means 72
A serial number 109 that is not registered in is generated.
The disc recording means 41 writes the serial number 109 on the disc currently being recorded or reproduced.

[0015]

As described above, according to the present invention, when an error of a predetermined level or more occurs during recording and reproducing using a disc, the serial number of the disc being used and the number of times of the error are stored in the disc recording / reproducing apparatus. Of non-volatile memory means, and when the number of times exceeds a predetermined number is displayed on the display means to notify the user, important information can be recorded on a disk in which many errors occur. Can be avoided.

If there is a problem on the disc recording / reproducing apparatus side, an error will occur even when reproducing or recording on a normal disc, but it is judged that the disc being reproduced or recorded is an error disc. In this case, the serial number of the disk to be used is newly registered in the memory means, and the number of consecutive new registrations of the serial number is stored in the non-volatile memory means in the disc recording / reproducing apparatus so that the number of consecutive new registrations is a predetermined number. In the above case, the user can know that there is a problem on the side of the disc recording / reproducing device by performing a predetermined display indicating the above problem, and the disc recording / reproducing device side is inspected. It is possible to prevent loss of important information by taking measures such as.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a disk recording / reproducing apparatus according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a disk recording / reproducing apparatus according to a second embodiment of the present invention.

FIG. 3 is a schematic diagram showing a counting process of the number of consecutive new registrations of the disc recording / reproducing apparatus according to the second embodiment of the present invention.

FIG. 4 is a block diagram showing the configuration of a disk recording / reproducing apparatus according to a third embodiment of the present invention.

FIG. 5 is a block diagram showing the configuration of a conventional disk recording / reproducing device.

FIG. 6 is a block diagram showing the configuration of a conventional disk recording / reproducing apparatus.

FIG. 7 is a block diagram showing a configuration of a conventional disk recording / reproducing device.

[Explanation of symbols]

 10 disk reproducing means 20 error judging means 30, 31 display means 40, 41 disk recording means 50, 51, 52 serial number registration means 60, 61 display command generating means 70, 71, 72 memory means

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G11B 19/02 G 7525-5D 20/12 9295-5D

Claims (3)

[Claims] 1. A disc recording / reproducing apparatus for reproducing a digital signal recorded on a track of a disc-shaped recording medium by using an optical pickup, and a disc reproducing means for demodulating an output signal from the optical pickup. ,
Memory means for storing the serial number recorded on the disc and the number of registrations of the serial number; error judgment for generating and outputting an error command when the error information received from the disc reproducing means exceeds a predetermined error level Means and a serial number recorded on the disc, read from the disc reproducing means in response to the error command, and registered in the memory means, and
When the same serial number is already registered in the memory means, the serial number registration means for incrementing the registration number and re-registering in the memory means, and the registration number of the serial number read from the memory means, A disc recording / reproducing apparatus comprising: a display command generating unit that generates a display command when the number of registrations is a predetermined number or more; and a display unit that receives the display command and performs a predetermined display. 2. The serial number registration means increments the number of new error registrations written in the memory means when a serial number not registered in the memory means is newly registered in the memory means in response to an error command. If the disc for which the error command has never been issued by the error determination means is played back, the new error registration count written in the memory means is cleared, and the display command generation means causes the new error registration means to clear. 2. The disc recording / reproducing apparatus according to claim 1, wherein a display command is generated when the number of registrations exceeds a predetermined number, and a predetermined display is performed by the display means. 3. A disc recording / reproducing apparatus for recording on a track of a disc-shaped recording medium by using an optical pickup, the disc recording unit recording data and serial number on the track, and receiving from the disc recording unit. Error determining means for generating and outputting an error command when the error information exceeds a predetermined error level, disk reproducing means for reproducing the serial number registered on the disk, and memory means for storing the serial number. The presence or absence of the serial number is detected, the serial number is registered in the memory means when the serial number is on the disk, and the serial number is stored in the memory means when the serial number is not on the disk. Serial number that is not output to the disc recording means. A registration unit, a display command generation unit that reads out the number of registrations of the serial number from the memory unit, and outputs a display command when the number of registrations of the serial number in the memory unit is larger than a predetermined reference value;
A disc recording / reproducing apparatus comprising: a display unit that receives the display command and performs a predetermined display.