JP2001243689A - Method for exchanging recording medium of disk-shaped recording medium reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrange the reproducing order of disks so as to be properly selected even when the disk is ejected at the time of the fully loaded state in a reproducing device to manage the disks by putting disk numbers on the plural disks while allowing the exchangeable reproduction for the plural disks. SOLUTION: When one disk is ejected at the time of the fully loaded state of the disks (S11, S12), the already reproduced disks are houses in an unoccupied housing part. At this time, when the ejected disk is specified to the disk number to be next reproduced (Y of S13), the already reproduced disk number is rewritten to the different disk number (S14). Thus, the disk reproduced right before is prevented from consecutively being reproduced. The disk number to be rewritten may be the number within the maximum number allowed for housing in a magazine or be the number exceeding it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to CD, MD, DV
The present invention relates to a reproducing apparatus for reproducing a disk-type recording medium such as D and MO.

[0002]

2. Description of the Related Art Conventionally, disk-type recording media (hereinafter, referred to as "disk-type recording media") have been used.
Say "disk". 2. Description of the Related Art There is a disk-type recording medium reproducing apparatus (hereinafter, referred to as a "reproducing apparatus") that can continuously reproduce a plurality of disks by using a magazine that stores a plurality of such disks. In the above-mentioned conventional reproducing apparatus, various methods have been proposed as a method of managing a plurality of disks stored in the apparatus. As one of them, there has been proposed a method of assigning a disk number to each disk loaded in a magazine and managing the disks according to the disk number (eg, Japanese Patent Application Laid-Open No. H10-269740).

With reference to FIG. 1, an example of a management method using a disk number will be described. FIG. 1A shows a procedure (store mode) when a disc is inserted. The disc inserted first is assigned a disc number and the playback unit 5
To be loaded. Next, the inserted disc is assigned a disc number and loaded into the first storage section 6 of the magazine 4. The last inserted disc is assigned a disc number and loaded into the second storage section 7 of the magazine 4.
The third storage section 8 is made empty.

[0004] Hereinafter, each disk is referred to as a disk number or less.
In the example shown, the disc number is reproduced first. After the end of the reproduction, as shown in FIG. 1B, it is loaded into the empty third storage section 8. Subsequently, the reproduction is performed in the order of the disk number. As shown in FIG.
When a new disk is inserted in a state where the disks are loaded in all the storage units 6 to 8, the inserted disk is set to a disk number, conveyed to the reproduction unit 5, and reproduced.
The state in which the disks are loaded in all of the magazine 4 and the reproducing unit 5 is called full loading.

When one disk, for example, the disk number loaded in the magazine 4 is ejected in the fully loaded state as shown in FIG. Are stored in the third storage unit 8.

[0006]

In the state shown in FIG. 1D, in the automatic reproduction mode, the disk in the next reproduction order is sent to the reproduction section 5 and reproduced. Here, it is assumed that the disc to be reproduced has a disc number as shown in FIG. Since this disk number is the disk (disk number) reproduced immediately before, the same disk is continuously reproduced. This makes the user uncomfortable.

According to the present invention, in a reproducing apparatus that enables a plurality of disks to be exchanged and reproduced and assigns a disk number to the plurality of disks, even if the disks are ejected when fully loaded, the reproduction order is properly selected. The purpose is to make it so.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object. The present invention is directed to a playback apparatus that stores a plurality of discs in a magazine, exchanges a plurality of discs for playback, and assigns a disc number to each disc for management. According to the present invention, when a disc is ejected at the time of full loading of the disc, the reproduced disc is stored in the storage section which is empty by the ejection. At this time, if the ejected disc is designated as the disc number to be reproduced next, the reproduced disc number is rewritten to a different disc number. Thus, it is possible to prevent the immediately preceding disc from being continuously played.

The disc number to be rewritten may be a numerical value within the maximum number that can be stored in the magazine, or may be a numerical value exceeding the maximum number. In the former case, the reproduced disk number needs to be a number other than the ejected disk number, and the management of the reproduction order is complicated, but the management of the disk number is easy. In the latter case, the number management becomes complicated, but the management of the reproduction order becomes simple.

[0010]

Embodiments of the present invention will be described with reference to the drawings. FIG. 2 is a sectional view showing the structure of the disk-type recording medium reproducing apparatus. A disc insertion slot 3 is formed on a front surface of a housing 2 of the playback device 1. A magazine 4 capable of storing a plurality of disks is arranged in the upper part on the back side inside the housing 2. The reproducing unit 5 is arranged below the magazine 4. Magazine 4
Has four storage portions 6, 7, 8 for storing a disk in the horizontal direction.

An elevating unit 9 is provided in front of the reproducing unit 5 and the magazine 4.
Is arranged. The elevating unit 9 transports the disc between the insertion slot 3, the magazine 4, and the reproducing unit 5. For details of the above structure,
Since it is conventionally known, further description is omitted. FIG. 3 shows a circuit configuration of the reproducing apparatus 1.

The control section 11 is constituted by a CPU and is arranged at an appropriate place in the housing 2. The control unit 11 performs various controls according to a program recorded in the memory 12. The operation unit 13 includes a push button switch arranged on the front panel of the housing 2 and the like. From the operation unit 13, a signal corresponding to a user operation is output to the control unit 11.

The display unit 14 is composed of a liquid crystal panel, an LED, and the like arranged on the front panel of the housing 2, and the control unit 1
Under the control of 1, various information such as the state of the playback device 1 is displayed to the user. The playback unit 5 performs playback processing of the loaded disc under the control of the control unit 11. The elevating unit 9 conveys the disc between the insertion slot 3, the magazine 4, and the reproducing unit 5 under the control of the control unit 11.

Next, two examples of the processing of the control unit 11 will be described. (Embodiment 1) FIG. 4 shows a management table and an actual state of a disk. The management table (A) records a correspondence relationship between a disc number, a pointer indicating a reproduction order, and an ejection flag indicating that the disc has been ejected.
As described above, the disc number is stored in the storage section 6 of the magazine 4.
It is operated irrespective of the order of ~ 8. (B) shows the actual relationship between the magazine 4, the reproducing unit 5, and the disk number. In the illustrated example, the disc number is ejected from the fully loaded state (FIG. 1C), and the disc to be reproduced next is. In the management table, a method of determining a reproduction order by a pointer, a method of transporting a designated disk, and the like have been proposed in the related art, and an appropriate method may be adopted.

According to the flowchart of FIG.
Will be described. In step S11, it is determined whether or not the disk is fully loaded. In step S12,
It is determined whether or not the disc in the magazine 4 has been ejected. When the conditions of steps S11 and S12 are satisfied, the process proceeds to step S13. If none of the conditions is satisfied, the process returns to step S11. Here, when another operation is performed on the operation unit 13, a corresponding process is performed. Note that the other processes are the same as those in the related art, and thus description thereof is omitted here.

In step S13, it is checked whether the ejected disc number is a number selected for the next reproduction. This is determined based on whether the disk number for which the ejection flag has been set and the disk number indicated by the pointer match in the management table. The case where there is no match in step S13 is a case where the disc number is ejected and the disc number is the next playback disc as shown in FIG. In this case, in step S14, the reproduced disk is rewritten from the disk number to the discharged disk number. Thereafter, the process proceeds to step S17, and the disc number indicated by the pointer is conveyed to the reproducing unit 5 and reproduced. In this case, the disk that has been reproduced immediately before and has been changed to the disk number will not be reproduced from the previous time.

The case of coincidence in step S13 is a case where the disk number is ejected and the disk number is the next reproduction disk as shown in FIG. In this case, in step S15, the reproduced disk number is rewritten to a number other than the ejected disk number, for example, a disk number. Next, in step S16, the rewrite target number, that is, the original disk number, is rewritten to the discharge disk number.

Thereafter, in step S17, the disk number indicated by the pointer is reproduced. At this time, the disc to be reproduced has the disc number before rewriting, and the disc that has been reproduced has the disc number before rewriting. Therefore, it is possible to prevent the disc reproduced immediately before from being continuously reproduced.

(Embodiment 2) FIG. 8 shows a management table and an actual state of a disk in a second embodiment. The management table differs from the management table of FIG. 4 in that a rewrite flag is added. This flag is composed of 2 bits, and is set to "0" when the disc number is rewritten.
When the number is changed from "0" to "01" and further rewriting is performed, the numerical values increase to "10" and "11". In the illustrated example, the disc number is the ejection disc, and the disc to be reproduced next is the disc number. Since the disk number has not been rewritten, the flag is set to "0".
0 ". Has been rewritten to "01" before.

Referring to the flowchart of FIG.
1 will be described. Step S11, Step S12
Is the same as the flow of FIG. 5 described above. Step S1
If the conditions of Steps S1 and S12 (the disc has been ejected with full loading) are satisfied, the process proceeds to Step S21. Step S
At 21, the reproduced disk number is rewritten to the discharged disk number. In the example of FIG. 8, the reproduced disc number is rewritten to the ejection disc number as shown in FIG.
As a result, the rewrite flag of the disk number is set to “01”.
And the rewrite flag of the disk number, which was "01", advances to "10".

In step S22, it is checked whether or not the next reproduced disk number matches the rewritten disk number. This is determined based on whether or not the disk number of the rewrite flag indicating “01” in the management table is the disk number indicated by the pointer. Step S
FIG. 11 shows an example of mismatch at 22. FIG. 11 shows FIG.
Unlike this, the disk number is rewritten, and the pointer indicates the disk number as the disk to be reproduced next. In this case, since the reproduced disk number has been rewritten to the disk number, the flag is set to “01”.
Becomes The rewrite flag of the disk number advances to “10”.

In the case of this mismatch, at step S23,
Plays the disk number indicated by the pointer. Since the disc number reproduced here is not the disc number reproduced immediately before, the same disc is not reproduced continuously. FIG. 1 shows an example of a match at step S22.
It is shown in FIG. The ejected disk is a disk number, and the pointer indicates the disk number as the disk to be reproduced next. In this case, since the disc number has been ejected, the reproduced disc number is rewritten to the disc number, and the flag becomes “01”. The rewrite flag of the disk number advances to “10”.

In the case of a match, in step S24, the next playback disk number is changed to a number other than the rewritable disk number. In the case of FIG. 12, the pointer is moved to the next disk number as shown in FIG. In step S25, it is checked whether or not the changed disk number newly indicated by the pointer matches the previously rewritten number. In this check, if the flag is “00”, it is determined that there was no past rewriting.

The case where there is no match in step S25 is as follows.
As shown in FIG. 13, the pointer indicates the disk number,
This is the case when the flag is “00”. in this case,
In step S26, the disk number indicated by the changed pointer is reproduced. This disc is not the disc number just reproduced since there is no rewriting. Therefore, the same disc is not reproduced continuously.

FIG. 14 shows an example of matching at step S25. FIG. 14 shows “10” indicating that the flag of the disk number indicated by the pointer changed from the state of FIG. 12 has been rewritten in the past. in this case,
In step S27, it is checked whether there is any unwritten disk in the magazine 4, that is, a disk with a flag of "00".

In step S27, if there is any unwritten disk, the pointer is changed to the disk number. In the example of FIG. 14, the flag of the disk number is “0”.
Since it is "0", the pointer is changed to the disk number. As a result, since the non-rewritable disc number is reproduced in step S28, the same disc is prevented from being reproduced continuously.

In step S27, if there is no disc that has not been rewritten, the pointer is changed to the first rewritten disc number in the magazine 4 and the disc is reproduced. In the example of FIG. 15, since there is no flag indicating "00", the pointer is changed to the disk number of the flag of "11" indicating the largest value. This allows
The disc number reproduced first first in the past is reproduced.

According to the second embodiment, what is reproduced after the ejection of the disk is the unreproduced disk or the oldest reproduced disk. Therefore, the user does not feel uncomfortable that the same disc is repeatedly reproduced. Although the two embodiments have been described above, when rewriting the disk number of a reproduced disk with a new disk number, the already used disk numbers 1 to
Numerical values other than 4, for example, 5 to 7 can also be used. In this case, disk management can be performed according to the disk number. This eliminates the need to provide a rewrite flag in the management table.

In this case, the numerical value displayed on the display unit 14 is (rewrite number-N) for the rewritten disk number. Note that the numerical value N here is a value obtained by adding 1 to the number of stored magazines 3 and is 4 in the example described above.

[0030]

According to the present invention, in a reproducing apparatus capable of exchanging and reproducing a plurality of discs and assigning disc numbers to the plurality of discs, even if the discs are ejected at the time of full loading, the reproducing order is maintained. It can be selected appropriately.

[Brief description of the drawings]

FIG. 1 is a diagram showing disk number management in a conventional reproducing apparatus.

FIG. 2 is a sectional view showing the structure of a reproducing apparatus to which the present invention is applied.

FIG. 3 is a diagram showing a circuit configuration of the reproducing apparatus of FIG. 2;

FIG. 4 is an exemplary view showing a management table and a state of a disc in the reproducing apparatus of FIG. 2;

FIG. 5 is a flowchart showing an operation when the table in FIG. 4 is used.

FIG. 6 is a diagram (part 1) showing the state of the management table and the disk during the processing of FIG. 5;

FIG. 7 is a diagram (part 2) showing the state of the management table and the disk during the processing of FIG. 5;

FIG. 8 is a diagram showing a state of a management table and disks according to a second example of the present invention.

FIG. 9 is a flowchart showing an operation when the table in FIG. 8 is used.

FIG. 10 is a diagram (part 1) showing the state of the management table and the disk during the processing of FIG. 9;

FIG. 11 is a diagram (part 2) showing the state of the management table and the disk during the processing of FIG. 9;

12 is a diagram (part 3) illustrating the state of the management table and the disk during the processing in FIG. 9;

FIG. 13 is a diagram (part 4) showing the state of the management table and the disk during the processing in FIG. 9;

FIG. 14 is a diagram (part 5) illustrating the state of the management table and the disk during the processing of FIG. 9;

FIG. 15 is a diagram (part 6) illustrating the state of the management table and the disk during the processing in FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Reproduction | regeneration apparatus 2 ... Housing | casing 3 ... Insertion opening 4 ... Magazine 5 ... Reproduction part 6 ... First storage part 7 ... Second storage part 8 ... Third storage part 9 ... Elevating part 11 ... Control part 12 ... Memory 13 Operation unit 14 Display unit

Claims (8)

[Claims] 1. A reproducing apparatus in which a plurality of disk-type recording media are stored in a magazine, the plurality of recording media can be exchanged and reproduced, and each recording medium is assigned a disk number and managed. If the recording medium is ejected when the medium is fully loaded, the disk number of the recording medium for which reproduction has been completed is rewritten to a disk number other than the disk number to be reproduced next. How to change recording media. 2. The method according to claim 1, wherein the rewritten disk number is a numerical value within a maximum number that can be stored in the magazine. 3. The disc-type recording apparatus according to claim 2, wherein the disc number for which reproduction has been completed is rewritten to the ejected disc number, and the disc number to be reproduced next is other than the rewritten disc number. A method for exchanging a recording medium in a medium reproducing apparatus. 4. The disk number according to claim 3, wherein the disk number is rewritten a plurality of times, and if there is an unwritten disk number, the disk number to be reproduced next is the unwritten disk number. A recording medium exchange method for a disk-type recording medium reproducing apparatus. 5. The disk type according to claim 3, wherein when the disk number is rewritten a plurality of times, the disk number to be reproduced next is other than the disk number most recently rewritten. A recording medium exchange method for a recording medium reproducing device. 6. The disk number according to claim 3, wherein the disk number is rewritten a plurality of times, and if there is no unwritten disk number, the disk number to be reproduced next is assumed to have been rewritten first. Recording medium exchange method for a disk-type recording medium reproducing apparatus. 7. The disk number to be rewritten is a numerical value other than the maximum number +1 that can be stored in the magazine.
13. A method for exchanging a recording medium in a disk-type recording medium reproducing apparatus according to item 5. 8. The method according to claim 7, wherein the rewritten disk number is converted into a number that can be stored in the magazine and is displayed on a display unit.