JP3398741B2 - Disc playback device - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a mini disc (MD).
The present invention relates to a disc reproducing device such as a player and a compact disc (CD) player, and particularly to a disc reproducing device having a stocker for storing a plurality of discs.

[0002]

2. Description of the Related Art A conventional disk reproducing apparatus will be described with reference to FIGS.

FIG. 9 shows a schematic structure of a disc reproducing apparatus. Reference numeral 1 denotes a disc (MD) which is housed in a case 2 so that it cannot be put in and taken out, and 3 denotes a housing of the disc reproducing apparatus. Is provided with an insertion opening 4 through which the disc 1 and the case 2 are inserted and removed. Reference numeral 5 is a turntable arranged on the insertion opening 4 side in the housing 3, 6 is a spindle motor for driving the turntable 5, and 7 is a stocker for storing a disk arranged in the rear portion of the housing 3 so as to be vertically movable. The stocker 7 has storages 7a, 7b, 7c for individually storing a plurality of discs 1, and switches 8a-8c for detecting the presence / absence of discs are provided in the storages 7a-7c. 9 is located on the back side of the stocker 7 and is in the front-back direction (left-right direction in FIG. 1).
It is a disc push-out pin that is movably provided on the disc.

Between the insertion port 4 and the turntable 5 in the housing 3, a pair of upper and lower disc feed rollers 10,
11 and 12, 13 are separated by a predetermined distance and are arranged in two stages in the front and rear, and of these, the feed rollers 12 and 13 are vertically movable. Further, between the turntable 5 and the stacker 7, a pair of upper and lower disc feed rollers 14, 15 and 16 and 17 are arranged in a front and rear two stages with a predetermined space between them, and the feed rollers 16 and 17 are vertically moved. It is possible.

In FIG. 9, 18 is an optical sensor for detecting a disk which is disposed between the feed rollers 10 and 12 so as to face each other, and 19 is an optical sensor for detecting a disk which is disposed so as to be opposed to the rear stage of the roller 12. Light emitting elements 8a and 19a are arranged opposite to each other on the side opposite to the position where the optical sensors 18 and 19 are arranged.

FIG. 10 is a schematic block diagram of a control unit for loading, ejecting and playing a disc.

In FIG. 10, reference numeral 20 denotes a microcomputer (hereinafter abbreviated as a microcomputer) for controlling the entire reproducing apparatus shown in FIG. 9. The microcomputer 20 has a stocker moving motor for vertically moving the spindle motor 6 and the stocker 7. 21, a pin drive motor 22 for operating the disc pushing pin 9, a roller drive motor 23 for rotating the feed rollers 10, 12, 14, 16 and the feed rollers 12, 13
And a roller vertical movement motor 2 for vertically moving 16 and 17
4 are connected to each other, and switches 8a to 8 for detecting whether or not the optical sensors 18 and 19 and the disk 1 are housed.
c is connected. The microcomputer 20 also includes an eject key 25, a play key 26 and a change key 27.
Are connected respectively.

Next, the operation of the conventional disc reproducing apparatus configured as described above will be described.

First, a normal operation of storing the disk 1 in the stocker 7 will be described.

When no disk 1 is stocked in the stocker 7, the stocker 7 is driven by the motor 2 as shown in FIG.
It is moved to the highest end by the vertical movement mechanism including 1. In this state, the disc 1 is inserted into the case 2 through the insertion opening 4.
When it is inserted together, the disc 1 is fed with a feed roller 10 rotating in the direction of arrow B, a feed roller 12 rotating in the direction of arrow D, a feed roller 14 rotating in the direction of arrow F, and a feed roller 16 rotating in the direction of arrow H. Thus, the stocker 7 is transported to the storage section 7a. When the switch 8a is turned on by completely loading the disc 1 into the storage portion 7a, the motor 23 stops and the feed roller also stops. Next, the stocker 7 is moved one step downward (direction of arrow M) by the vertical movement mechanism. Here, if the switch 8b detects nothing, the lowering of the stocker 7 is stopped.

Then, when the next disk 1 is inserted from the insertion slot 4, the feed roller drive motor 23 is activated again to rotate the feed rollers 10, 12, 14, 16 in the same direction as described above. The disk 1 is carried into the storage section 7b of the stocker 7, and the switch 8b detects the disk 1 to stop the driving of the feed roller. Along with this, the stocker 7 is shifted further downward (in the direction of arrow M). Here, since the switch 8c does not detect the disk, the lowering operation of the stocker 7 is stopped.

When the disc 1 is further inserted through the insertion port 4, the feed rollers 10, 12, 14, 16 are similarly rotated to carry the disc 1 into the storage portion 7c of the stocker 7,
The transport operation is stopped by turning on the switch 8c.

When the disks 1 are stocked in all the storage sections 7a to 7c of the stocker 7, one disk 1 can be stocked on the turntable 5.

When the disk 1 is inserted with all the switches 8a to 8c turned on, the feed rollers 10 and 12,
Only 14 rotates in the directions of arrows B, D, and F to draw in the disk 1. When the optical sensor 19 detects the disc 1 and the optical sensor 18 no longer detects the disc 1, it is determined that the disc 1 has been conveyed to a predetermined position on the turntable 5, and the feed rollers 10, 12, 14 rotate. Stop
Both the feed rollers 12 and 13 and the feed rollers 14 and 15 are lowered, and the disk 1 is turned together with the case 2 into the turntable 5.
The disc 1 is fixed on the turntable 5 by placing the magnetic plate on the turntable 5 on the turntable 5 by adsorbing the magnetic plate, which is the central portion of the disc 1 in the case 2, on the turntable 5.

Next, the eject operation of the disc will be described.

When the eject key 25 is operated when the disc 1 is stocked only in the stocker 7 and there is no disc 1 on the turntable 5, it is ejected from the disc 1 in the lowermost storage portion 7a of the stocker 7. It
When discs are stocked in all of the storage portions 7a to 7c, first, the stocker 7 is lifted in the direction of arrow N and pushed out, the storage portion 7a is positioned next to the pin 7, and the push pin 7 is moved by the motor 22. The disc 1 is pushed out from the stocker 7 by moving it in the direction of arrow O. At the same time, by rotating the feed rollers 10, 12, 14, and 16 in the directions of arrows A, C, E, and G, the disc 1 is transferred to the insertion port 4, and the optical sensor 18 detects the disc 1 and The rotation of the feed rollers 10, 12, 14, 16 is stopped at the position where the optical sensor 19 detects the disk 1.

When the disc 1 transferred to the insertion slot 4 is taken out and the eject key 25 is operated again, the disc in the storage portion 7b is ejected in the same manner as described above. When this disc is removed from the insertion slot 4 and the eject key 25 is further operated, the disc in the storage section 7c is finally ejected.

When there is a disc on the turntable 5 as well, the first operation of the eject key 25 ejects the disc on the turntable 5 to eject the disc.
By operating the eject key 25 for the third time, the disk in the storage unit 7a is operated by operating the eject key 25 for the third time.
The discs in b are ejected one after another by operating the eject key 25 for the fourth time.

Next, the play operation will be described.

This type of MD player has the play key 26 with the disks 1 stocked in the stocker 7.
When is operated, first, the disc in the storage portion 7a (n value = 1) is moved to the reproduction position and reproduction is started.

If there is no disc in the storage unit 7a, the disc in the storage unit 7b is moved to the reproducing position. If there is no disc in the storage unit 7b, the disc in the storage unit 7c is moved to the reproducing position.

On the other hand, when it is desired to reproduce a disc in another storage unit 7a instead of reproducing the disc in the storage unit 7a, the disc change key 27 is operated. In this case, the disc to be reproduced and selected according to the number of times the operation change key 27 is selected is 7a → 7.
It is changed to b → 7c → 7a ... And two seconds after the operation of the change key 27 is finished, the selected disk is transferred from the stocker 7 to the turntable 5, and the play operation is started.

This disc change can be carried out even if the discs are stocked in all the storage parts of the stocker 7 as long as the discs are not set on the turntable 5, and the discs are set on the turntable 5. However, it is possible if there is an empty space in one or more of the stockers 7.

Also, in this type of MD player, even if all the storage sections of the stocker 7 are stocked, only one disk can be loaded on the turntable 5 and reproduced.

Further, after the disc is stocked in all the storage parts of the stocker 7 and the disc is inserted from the insertion port 4, the disc is transferred onto the turntable 5,
By operating the play key 26, the last disc can be reproduced.

On the other hand, the disc on the turntable 5 must be ejected or stored in the empty storage section before the disc to be reproduced is stocked in the stocker 7, and the disc cannot be exchanged. Therefore, the stocker 7 cannot be replaced. When all are filled and there is a disc on the turntable 5, the disc change key 27 is not accepted.

[0027]

DISCLOSURE OF THE INVENTION In the conventional disc reproducing apparatus as described above, the disc is stored in the storage portion 7 of the stocker 7.
When the eject operation is performed while the disc is stored in all of a to 7c, the disc in the storage portion 7a is ejected, and the disc in the storage portion 7bT is operated by operating the eject key 25 again after removing the disc from the insertion slot 4. Is ejected, the disc is removed from the insertion slot 4, and then the eject key 25 is operated again, so that the final storage portion 7
The disk of c is ejected.

Therefore, when ejecting the last disc in the storage section 7c, it not only takes a considerable time, but if the only disc to be ejected is the storage section 7c, the disks in the storage sections 7a and 7b must be reloaded. However, there was a problem that it was not easy to use.

The present invention solves the above-mentioned conventional problems, and a desired disc can be directly ejected from a plurality of discs in the stocker, and the disc reproduction can be suppressed. The purpose is to provide a device.

[0030]

In order to achieve the above object, the invention of claim 1 is a reproducing section including a turntable for reproducing a disk, a stocker for accommodating a plurality of disks,
Disc playback having a disc inserted in the disc insertion slot into the stocker, a disc transfer means for ejecting the disc and exchanging the disc during play, and a key operation unit for instructing the loading, eject and play operations of the disc an apparatus comprising: first determination means for determining whether the disc is in the disc insertion opening, by the first determination means, said disk
If but was determined that not in the disk insertion port, a second determination means for determining whether the eject key of the previous SL key operation unit is turned on, an eject key is turned on by the second determination means When it is determined that the ejecting position has been changed, the eject designated position of the stocker is changed according to the number of times the eject key is operated, and an eject disc selecting unit that selects a disc to be ejected, and the first determining unit.
Discriminates that there is no disc, and
Then, when an eject disc is selected, an eject instruction unit for ejecting the disc selected by the eject disc selecting unit by the disc transfer unit, and a starting point when the eject key is turned on.
And a timer for time-up after a fixed time.
When the target disk selection means has expired the timer
Eject keys according to the number of times the eject key is operated up to the point
It is special to select the disc to be ejected to the eject position.
It is a characteristic .

According to a second aspect of the present invention, the predetermined key is an eject key, and further comprises a timer that starts when the eject key is turned on and times up after a predetermined time, and the eject disk selecting means sets the time-up of the timer. The disk to be ejected is selected at an eject position according to the number of times the eject key is operated up to the point of time.

According to a third aspect of the present invention, there is provided third discriminating means for discriminating whether or not there is a disc at the eject position selected by the eject disc selecting means, and disc at the eject position selected by the third discriminating means. It is further provided with means for changing the eject position of the disc when it is determined that there is no disc.

According to a fourth aspect of the present invention, there is provided a reproducing section including a turntable for reproducing a disc, a stocker for accommodating a plurality of discs, loading of the disc inserted into the disc insertion slot into the stocker, ejecting and playing the disc. Disk transfer means for disk replacement,
A disc reproducing apparatus having a key operation unit for instructing loading, ejecting and playing operations of the disc, comprising: a first determining unit that determines whether the disc is in a disc insertion slot; and a first determining unit. ,Previous
If it is determined that the disc is not in the disc insertion slot,
The case, the second determination means for determining on-operation time length eject key before Symbol key operation unit is continuously eject the stocker according to the time length determined by said second determination means and ejecting the disk selecting means to change the specified position, selects a disk to be ejected, the first
Discriminating means determines that there is no disc,
When the eject disc is selected based on the setting method,
Eject instructing means for ejecting the disc selected by the eject disc selecting means by the disc transferring means, and the eject key when the eject key is turned on.
It is equipped with a timer that starts
If the eject disk selection means is the timer
The number of times the eject key was operated until the time
Select the disc to eject at the appropriate eject position
The to Rukoto those characterized.

According to a fifth aspect of the present invention, there is provided a reproducing section including a turntable for reproducing a disc, a stocker for accommodating a plurality of discs, loading of the disc inserted into the disc insertion slot into the stocker, ejecting and playing the disc. Disk transfer means for disk replacement,
Loading of the disk, there <br/> disk reproducing apparatus having a key operating unit for instructing the eject and play operation, a first determination means for determining whether the disc is in the disc insertion opening, said first By the judgment means of
If it is determined that the disc is not in the disc insertion slot,
The case, before Symbol a second determination means for determining a combination of keys operated simultaneously among the plurality of keys of the key operation portion, the stocker in accordance with a combination of keys is determined by the second determination means change the eject specified position, and the eject disk selecting means for selecting a disk to be ejected, the first determining means, determine that there is no disk
Select the eject disc based on the second determination means.
An eject instruction means for ejecting the disc selected by the eject disc selecting means by the disc transfer means when selected, and the eject key
Start when turning on, and time up after a predetermined time
A timer, and the eject disc selecting means is
The eject key until the timer expires
To eject to the eject position according to the number of
It is characterized by selecting the disk .

[0035]

[Action] In the invention of claim 1, the predetermined key by the second judging means in a state where the disk is the first determination means that the disk insertion port is not inserted is determined is turned on
If it is determined that those, eject eject disk selection means stocker each time a predetermined key is turned on
Since the scheduled position is changed and the eject instruction means instructs the disc transfer means to eject the disc,
You can select the desired disk you ejected from the eject expected position of the stocker directly, can suppress the increase of the operation key.

According to the second aspect of the present invention, the operation time of the eject key is limited by the timer, and the eject position of the disc automatically ejected to the eject position according to the number of key operations until the timer expires. By selecting, it becomes possible to select an eject without waste.

According to the third aspect of the invention, the third discriminating means discriminates that there is no disc at the selected eject position, and the disc eject position is automatically changed, thereby ejecting the disc. The operation can be performed smoothly.

According to the invention of claim 4, the planned eject position is changed according to the length of time the eject key is continuously operated, and the planned eject position in the stocker is changed.
Select the disc to eject directly from the storage.

According to the invention of claim 5, two or more eject keys are provided, and the eject schedule is determined according to the combination of the eject keys operated at the same time.
Change the position and select the disc to eject directly .

[0040]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic block diagram of a disk reproducing apparatus according to the present invention, which has the same structure as FIG. A microcomputer, a timer and an alarm are provided in the housing shown in FIG. 1, which will be described later.

FIG. 2 is a block diagram of a control unit for performing loading, ejecting and playing operations of the disc according to the embodiment of the present invention.

1 and 2, reference numeral 30 denotes a stock position selection function, a disk transfer instruction function, a disk presence / absence judgment function of the selected stock position, a stock position change function, as well as controlling and managing the entire disk reproducing apparatus. A microcomputer (hereinafter abbreviated as "microcomputer") having a stocker eject disc selection function, an eject position change function, a reproduction disc selection function, a stock position empty determination function during reproduction, a disc extraction determination function, and the like. 10, the spindle motor 6, the stocker moving motor 21, the push pin drive motor 22, and the feed roller drive motor 2 as in FIG.
3, a roller vertical movement motor 24 are connected to each other, and further, optical sensors 18 and 19 and switches 8a to 8c for detecting the presence / absence of disk storage are connected.

As in FIG. 10, the play key 26 and the disc change key 27 are connected to the microcomputer 30, and the loading / eject key 31, which is a characteristic part of the present embodiment, is further connected to the microcomputer 30. A timer 32 that starts from the time point when the determination is made and times up after a predetermined time, and an alarm 33 that notifies that there is a disk at the selected stock position are connected.

Next, the operation of this embodiment configured as described above will be described.

First, the first embodiment of the disc loading operation will be described with reference to the flow chart shown in FIG.

When the optical sensor 18 detects the insertion of the disc 1 into the insertion port 4, the microcomputer 30
Determines that a disc has been inserted (step S
1), the stock position on the stocker 7 is set to n = 1 (step S2).

Note that n = 1 indicates the stock position of the storage section 7a, n = 2 indicates the storage section 7b, and n = 3 indicates the storage position of the storage section 7c.

At the same time, the 3-second timer 32 starts (step S3). In the next step S4, it is determined whether the loading / eject key 31 has been pressed. When it is determined that the loading / eject key 31 is pressed, the current n value is incremented by 1 and the n value is incremented by 1 →
It shifts by 2 → 3 by the number pressed (step S5).
Then, in the next step S6, it is determined whether the value of n is n> 3. If it is determined that n> 3 is not satisfied, the process proceeds to step S8 to determine whether the timer 32 is over, and if it is determined that n> 3, the process proceeds to step S7 and the value of n is changed. After setting to "1", step S8
Proceed to.

Whether it is loading or ejecting is determined by the presence or absence of a signal from the optical sensor 18 which detects the insertion of the disc 1.

If it is determined in step S8 that the time of 3 seconds set by the timer 32 has not elapsed, the process returns to step S4, and the processes in and after step S4 are repeatedly executed. When it is determined that the set time of the timer 32 has passed 3 seconds, the process proceeds to step S9, and the disc 1 is placed in the n-th storage portion corresponding to the value of n determined when 3 seconds has passed. Is already stocked. If the discs are already stocked, the process proceeds to step S10, the alarm 33 is activated to generate a beep sound for 2 seconds, and the discs are not loaded. If it is determined that the disc is not stocked in the storage unit for the determined n value, the process proceeds to step S11, where n
The disc is stocked in the nth storage unit corresponding to the value.

Therefore, in such a loading method, it is possible to specify in which storage part of the stocker 7 the stocker should stock the disc when inserting the disc. Therefore, the user can specify the disc insertion order and the stock position of the disc with respect to the stocker. Can be set to the street. Further, since the stock position can be automatically designated, it is possible to suppress an increase in the number of operation keys.

Next, a second embodiment of the disc loading operation will be described with reference to FIG.

In the second embodiment, when it is determined by the optical sensor 18 and the microcomputer 30 that the disc 1 is inserted in the insertion slot 4 as in the first embodiment (step S21), the stocker is released. Stock position to 7 n = 1
Is set (step S22). Then, in the next step S23, it is determined whether or not the disc is already stocked in the storage portion of the nth stocker 7. If disks have already been stocked, 1 is added to the n value (step S24), and it is determined whether n> 3 (step S25).
Here, when it is determined that n> 3, step S2
Returning to step 3, the processing from step S23 is executed. If n> 3 is not satisfied, that is, if it is determined that the discs are stored in all the storage units, the loading of the discs ends.

In steps S24 to S25, a storage unit in which discs are not already stocked is automatically selected from the side having the smaller n value.

In step S23, if an unstocked storage unit is selected, step S26
Then, "OK SIG" indicating that stock is possible is set. Next, the timer 32 set to 5 seconds starts (step S27). Then, it is determined whether the loading / eject key 31 is pressed (step S2
8) If it is determined that the loading / eject key 31 is turned on, 1 is added to the current n value for each turn-on operation (step S29). Next, the set "OK SIG" is erased (step S30), and n> 3.
It is determined (step S31). If it is determined that n> 3 is not satisfied, the process proceeds to step S33 to determine whether the timer 32 is over, and if it is determined that n> 3, the process proceeds to step S32 and the value of n is set to " Return to 1 ”and proceed to step S33.

When it is determined in step S33 that the time of 5 seconds set by the timer 32 has not elapsed, the process proceeds to step S34 to check whether the disc is already stocked in the changed n-position storage portion. judge. If the disks have already been stocked, the process returns to step S29, and the process of adding "1" to the current n value is executed. If it is determined that the disc is not stocked in the changed storage portion at the n position, the process proceeds to step S25.
"OK SIG" indicating that stocking is possible is set, and the process returns to step S28.

On the other hand, in step S33, the timer 3
When it is determined that 2 has timed out, the process proceeds to step S36, and it is determined whether "OK SIG" is set. If it is determined that "OK SIG" is set, the disc is stocked in the n-position storage section (step S37). In addition, "OK SI
If "G" is not set, the process proceeds to step S38, the alarm 33 is activated to generate a beep sound for 2 seconds, and the user is informed that the disc cannot be stocked in the storage portion at the n position.

Therefore, in the second embodiment as described above, the same effect as that of the first embodiment can be obtained, and when the disc is already stocked in the determined n-th storage portion, the n-value is obtained. The value of n is updated by adding "1" to the stock value, whereby the stock position without the disk can be automatically selected and the stock operation can be performed more smoothly.

Next, the disc ejecting operation will be described with reference to the flow chart shown in FIG.

When the eject processing program shown in FIG. 5 starts, first, in step S41, it is determined whether the disc 1 is inserted into the disc insertion opening 4 by the optical sensor 1.
The signal from 8 and the microcomputer 30 determine. here,
When it is determined that the disc 1 is inserted into the insertion slot 4, the loading operation shown in FIG. 3 or 4 is started.

On the other hand, when it is determined that the disc 1 is not inserted into the insertion slot 4, it is determined whether the loading / eject key 31 is turned on (step S4).
2) Then, in the next step S43, the n value (the lowermost storage portion 7a of the ejected disc is 1 and the uppermost storage portion 7c is 3) is set to 1. Then, in the next step S44, the switch 8a (or 8b,
The determination is made based on the ON signal of 8c). If it is determined that there is no disc in the n-value storage unit, step S45.
Then, after adding "1" to the n value, it is determined in step S46 whether n> 3. If it is not n> 3, the process returns to step S44, and if n> 3, the eject process ends. That is, in steps S44 to S46, when the disc is not present at the selected eject position, the eject position of the disc is changed to the position where the disc is present.

If it is determined in step S44 that there is a disk in the n-value storage unit, step S47.
Proceed to and set "OK SIG" indicating that there is a disc. Then, the 3-second timer 32 is started (step S48).

In this state, it is determined whether the loading / eject key 31 has been turned on again. If it is determined that the loading / eject key 31 has not been turned on, the routine proceeds to step S54, where it is determined whether the timer 32 has timed out. If it is determined that the switch is turned on, the process advances to step S50 to set the n value to "1".
Is added to increase the n value of the designated storage unit by one. After that, "OK SIG" is erased (step S51),
It is determined whether the n value is n> 3 (step S52). Here, when it is determined that n> 3 is not established, the process proceeds to step S54, and when it is determined that n> 3, the n value is returned to 1 in step S53.

When it is determined in step S54 that the time of 3 seconds set by the timer 32 has not elapsed, the process proceeds to step S55, and it is determined whether or not there is a disc in the storage section at the designated n position. If there is no disc, the process returns to step S50, "1" is added to the current n value, and the processes from step S51 are executed. If there is a disc, the process proceeds to step S56, "OK SIG" indicating the presence of the disc is set, and the process returns to step S49.

On the other hand, in step S54, the timer 3
When it is determined that the time of 2 is over, the process proceeds to step S57, and it is determined whether "OK SIG" is set. If it is determined that "OK SIG" has been set, then the flow advances to step S58 to drive the push-out pin 9 and the feed roller to eject the disc in the storage portion at the n position. In addition, "OK S
When it is determined that "IG" has not been set, the process proceeds to step S59, the alarm 33 is operated, and a beep sound is generated for 2 seconds.

In this embodiment, when the loading / eject key 31 is turned on while the disc is not inserted into the insertion slot 4, which disc is stocked in the stocker 7 is ejected. Can be selected automatically.

In this embodiment, the nth disc is ejected by pressing the eject key n times. However, a desired disc may be ejected by determining the time for which the eject key is kept pressed. . For example,
Press 0.5 seconds to eject No. 1, press 1 second to eject No. 2, press 1.5 seconds to eject No. 3 disc. Therefore, it is possible to improve operability and prevent miscounting of the number of operations due to chattering or the like.

Also, the eject keys are the first key and the second key.
The number of keys may be two (or more), and the ejection position may be determined by a combination of the pressing methods. For example, the first key alone ejects the first disc, the first and second keys simultaneously press to eject the second disc, and the second key ejects the third disc. Therefore, it is possible to more reliably select the disc to be ejected.

Next, the disc play operation will be described with reference to FIGS.

The feature of the present embodiment in this play operation is that the disc can be changed by operating the play key 26 during reproduction, and that all the storage parts of the stocker 7 have discs and the turntable 5 also has discs. When there is a disc change operation (play key operation during playback operation), the disc on the turntable 5 is ejected, and when it is determined that this disc has been removed from the insertion slot 4, replacement is designated. The disc is transferred from the stocker 7 to the turntable 5 for playing. The operation will be described in detail below.

In FIG. 6, when the play processing program is started, the play key 26 is first set in the microcomputer 30.
Is turned on. When it is determined that the play key 26 is turned on, it is determined in step S62 whether the playback device is playing. Here, if the play key 26 is turned on while not playing, the process routine shown in FIG. 7 proceeds, and if the play key 26 is turned on during play, the timer 32 set to 3 seconds is started. (Step S63) and stop the reproduction (step S63).
64).

Next, all the storage sections 7a of the stocker 7 ...
Switch 8a to see if disks are stocked in 7c
The determination is made from the ON signals of 8c (step S65). Here, it is determined from the ON signals of the switches 8a to 8c whether or not the disks are stocked in the storage units 7a to 7c (step S65). If at least one of the storage units 7a to 7c is empty, the disc can be exchanged. Therefore, the processing routine shown in FIG. 8 is executed. Since it is impossible to exchange the disk in step S66, the process proceeds to step S66, n = 1 is set,
Only the acceptance of which disk you want to replace is executed by the following process.

That is, in step S67, it is determined whether the play key 26 has been further turned on. When the play key 26 is turned on, the process proceeds to step S68, the timer 32 is reset and the timer 32 is started from the beginning. Then, it progresses to step S69 and adds "1" to the present n value. Then, it is determined whether the n value is n> 3 (step S70). If n> 3 is not satisfied, the process returns to step S67. If n> 3, the value of n is returned to 1 in step S71, and the process returns to step S67.

On the other hand, when it is determined in step S67 that the play key 26 is not turned on, step S7
In step 2, it is determined whether the timer 32 has timed out. Here, if the time is not over, step S6
7. If the time is over, the process goes to step S73 to eject the disc on the turntable 5. Then, it is determined whether the ejected disc is pulled out from the insertion slot 4 based on the signal of the optical sensor 18 (step S74). When the disc is taken out, the disc in the storage portion corresponding to the above n value is transferred from the scatter 7 onto the turntable 5 and the play is started (step S75).

If the disc is not removed from the insertion slot 4, it is determined in step S76 whether the loading / eject key 31 is turned on, and if it is turned on, the disc is reloaded (step S77). If it is not on, the process returns to step S74.

As another processing when it is determined in step S65 that there are disks at all stock positions, as shown in step S78, the play key 26 is simply operated during play to turn the turntable 5 on. If all the stockers 7 have disks, the disks on the turntable 5 may be immediately ejected.

In step S62, when the play key 26 is turned on while the play operation is not in progress,
As shown in, first, it is determined whether or not there is a disk on the turntable 5 based on the signal of the optical sensor 19 (step S81). If there is a disc on the turntable 5, the process proceeds to step S82 to reproduce the disc on the turntable 5. If there is no disc on the turntable 5, the process proceeds to step S83, and it is determined based on the signal from the switch 8a whether there is a disc in the storage section 7a corresponding to n = 1. S
At 84, the disc in the storage portion 7a corresponding to n = 1 is transferred onto the turntable 5 and reproduced.

If there is no disk in the storage section 7a in step S83, the flow advances to step S85 to determine whether or not there is a disk in the storage section 7b corresponding to n = 2 based on the signal from the switch 8b. If it is determined that there is a disc, the process proceeds to step S86, and the disc in the storage portion 7b corresponding to n = 2 is transferred onto the turntable 5 and reproduced. If there is no disc, the process proceeds to step S87, and it is determined based on the signal from the switch 8c whether there is a disc in the storage portion 7c corresponding to n = 3. If it is determined that there is a disc, the process proceeds to step S88, where n =
Turntable 5 with the disk of storage section 7c corresponding to 3
Transfer to the top and play.

Next, with reference to FIG. 8, a description will be given of the processing when it is determined in step S65 of FIG. 6 that even one of the storage portions 7a to 7c of the stocker 7 has an empty space.

Here, first, it is determined whether the stocker 7 is empty or where it is located. That is, first, based on the signals from the switches 8a to 8c, it is determined whether or not there is a disk only in the uppermost storage portion 7c corresponding to n = 3 (step S91). Here, when it is determined that the empty space is only the uppermost storage portion 7c, the process proceeds to step S92, n '= 3 is set, and the n value is set to n in step S97.
Set to the value obtained by adding 1 to ´.

If it is determined that the sky is not the uppermost storage section 7c, the process proceeds to step S93, and it is determined whether or not there is a disk only in the lowermost storage section 7a corresponding to n = 1. When it is determined that the sky is only the storage portion 7a, n '= 1
(Step S94), and then step S97
Process. When it is determined that the empty space is not the storage portion 7a, the process proceeds to the next step S95, and it is determined whether or not there is a disk only in the central storage portion 7b corresponding to n = 2.
If it is determined that the empty space is only the storage portion 7b, then n '= 2 is set (step S96), and then the process of step S97 is performed.

In the next step S98, step S97
It is determined whether or not the processing result in step n> 3. Where n is n
If> 3, the n value is returned to 1 (step S99), and then it is determined whether the n value is equal to n '(step S10).
0). If n> 3 is not satisfied in step S98, the process proceeds to step S100.

If it is determined in step S100 that n = n ', there is no disc to be replaced, and the process returns to step S97. If n is not equal to n ', the process proceeds to step 101, and it is determined again whether the play key 26 has been turned on. When the play key 26 is turned on, 1 is further added to the value of n (step S102), and the timer 32 is reset and restarted (step S103). Then, the process returns to step S98.

On the other hand, if it is determined in step S101 that the play key 26 has not been turned on, the flow advances to step S104 to determine whether the 3-second timer 32 has timed out. If the time has not expired, the process returns to step S101. If the time has expired, the disc on the turntable 5 is moved to n'of the stocker 7.
It is stocked in the empty storage part at the position indicated by (step S1).
05). Then, the disc in the storage portion at the position indicated by n is transferred onto the turntable 5 and the play is started (step S106).

As a result, it is possible to convert the disc into a disc corresponding to the number of times the play key 26 is operated during play.

Next, the processing when the stocker 7 has only one disk and when there is no disk will be described.

Based on the processing results shown in steps S91 to S96 in FIG. 8, it is determined whether or not one disk is the storage portion corresponding to the position of n = 1 (step S107). If it is determined that the position is n = 1 only, step S1
Go to 08 and set n = 1. If it is determined that the storage section does not correspond to the position of n = 1, step S
Proceeding to 109, it is judged whether or not one disk is only the storage section corresponding to the position of n = 2. In the case of only the position of n = 2, the process proceeds to step S110, n = 2 is set, and n = 2
If it is not only the position of, move to step S111,
It is determined whether or not one disk is only the storage section corresponding to the position of n = 3. Here, in the case of only the position of n = 3, the process proceeds to step S112, n = 3 is set, and n = 3.
When it is not only the position of, that is, when there is no one disk in the stocker 7, the play is resumed as it is (step S119), and the process is ended.

On the other hand, if there is a disc in any one of the storage sections, the play key 26 is pressed in step S113.
It is determined whether is turned on. Where play key 2
When it is determined that 6 is turned on, it is determined whether n '= 0 (step S114). When n '= 0, n' =
0 is erased (step S115), the timer 32 is subsequently reset, and the process returns to step 113. When it is determined in step S113 that the play key 26 has not been turned on, the process proceeds to step S117 to determine whether the timer 32 has timed out. If the time is not up, the process returns to step S113, and if the time is up, the process proceeds to step S118 and n ′.
= 0 is determined. When n '= 0, step S1
Proceed to 19 and resume playing. Also, n '=
If it is not 0, the process proceeds to step S120, and the disc on the turntable 5 is stocked in the storage portion corresponding to the position of n + 1. When n = 3, it is stocked in the first storage section 7a.

Therefore, in the play operation of this embodiment, when there are discs on the stock positions of all the stockers 7 and on the turntable 5, the operability when disc change is performed can be improved.

In the above embodiment, the case where the loading key and the eject key are used in combination has been described, but the present invention is not limited to this, and may be used in combination with other keys.

Further, in the construction of the above-mentioned embodiment, the feed rollers 10 to 17 and the drive motor 23 for the feed rollers 10-17 and the drive motor 23 serve as the disk transfer means, the optical sensor 18 and the microcomputer 30 serve as the first determination means, and the loading / eject key 31 and the microcomputer 30.
Is the second determining means, the microcomputer 30 is the eject disk selecting means, the eject instructing means and the eject position changing means, and the switches 8a to 8c and the microcomputer 30 are the third.
Each of the determination means is configured.

[0093]

As described above, according to the present invention, the second determination means determines the ON operation of the predetermined key in the state where the first determination means determines that the disc is not inserted in the insertion slot. Then, the eject disk selection means changes the eject position of the stocker every time a predetermined key is turned on, and the eject instruction means instructs the disk transfer means to eject the disk, so that the stocker is stocked in the skier. A desired disk can be directly selected and ejected, and an increase in operation keys can be suppressed.

According to the second aspect of the present invention, the operation time of the eject key is limited by the timer, and the eject position of the disc that ejects to the eject position according to the number of key operations until the timer expires is automatically set. It is possible to select an eject without waste because the selection is made in a proper manner.

According to the third aspect of the invention, the third discriminating means discriminates that there is no disc at the selected eject position and automatically changes the eject position of the disc, thereby ejecting the disc. The operation can be performed smoothly.

Further, according to the invention of claim 4, by selecting the disc to be ejected according to the length of time when the eject key is continuously operated, the operability is improved, and the number of times of operation is mistaken due to chattering or the like. Counting can be prevented.

Further, according to the invention of claim 5, the disc to be ejected is selected according to the combination of the eject keys operated, so that the disc to be ejected can be more surely selected.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a disc reproducing apparatus according to the present invention.

FIG. 2 is a configuration diagram of a control unit for performing loading, ejecting and playing operations of a disc in the present embodiment.

FIG. 3 is a flow chart showing an example of a procedure of a disc loading operation in the present embodiment.

FIG. 4 is a flowchart showing another example of the procedure of the disc loading operation in the present embodiment.

FIG. 5 is a flowchart showing a procedure of a disc eject operation in this embodiment.

FIG. 6 is a flowchart showing a procedure of a play operation in this embodiment.

FIG. 7 is a flowchart showing a procedure of a play operation in the present embodiment.

FIG. 8 is a flowchart showing a procedure of a play operation in the present embodiment.

FIG. 9 is a schematic configuration diagram of a conventional disc reproducing apparatus.

FIG. 10 is a block diagram of a control unit for performing conventional disk loading, eject, and play operations.

[Explanation of symbols]

1 disc 2 cases 3 housing 4 insertion slot 5 turntable 6 Spindle motor 7 Stocker 7a-7c storage section 8a-8c switch 9 Disc push pin 10-17 Feed roller 18, 19 Optical sensor 18a, 19a generating element 21 Stocker drive motor 22 pin drive motor 23 Roller drive motor 24 roller vertical movement motor 26 Play Key 27 Change Key 30 microcomputer 31 loading / eject key 32 timer 33 alarm

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G11B 17/22-17/30 G11B 19/02-19/18 G11B 27/10-27/34

Claims (4)

(57) [Claims] 1. A reproducing unit including a turntable for reproducing a disc, a stocker for accommodating a plurality of discs, loading a disc inserted in a disc insertion slot into the stocker, ejecting the disc, and exchanging the disc during play. disk transfer means, the loading of the disc, a disc reproducing apparatus having a key operating unit for instructing the eject and play operation, first determining if the disc is in the disc insertion slot
Disc is inserted by the discriminating means and the first discriminating means.
If it is determined that the key is not at the entrance,
A second determination means for determining whether the eject key is turned on, it is determined that the ejector key in said second determination means is turned on, the eject of the stocker according to the number of operations of the eject key The eject disc selecting means for changing the designated position and selecting the disc to be ejected, and the first determining means determine that there is no disc,
The eject disc is selected based on the second determination means.
When the, an eject instruction device for ejecting the disk transfer means is selected disc by the eject disk selecting unit, the start and the predetermined time during the ON operation of the eject key
And a timer for time-up later, wherein the eject disk selection means sets the time of the timer.
Depending on the number of times the eject key is operated up to the point of
A disc reproducing apparatus, characterized in that a disc to be ejected to an eject position is selected . 2. A third judging means for judging whether or not there is a disk at the eject position selected by the eject disk selecting means, and the third judging means judges that there is no disk at the selected eject position. The disc reproducing apparatus according to claim 1, further comprising means for changing the eject position of the disc. 3. A reproducing unit including a turntable for reproducing a disc, a stocker for accommodating a plurality of discs, loading a disc inserted into a disc insertion slot into the stocker, ejecting the disc, and exchanging the disc during play. Disc reproducing means having a disc operating means, a key operation part for instructing loading, ejecting and playing operations of the disc, the first discriminating device discriminating whether the disc is in a disc insertion slot.
Disc is inserted by the discriminating means and the first discriminating means.
If it is determined that the key is not at the entrance,
A second determination means for determining the length of time that is turned on eject key is continuously, change the eject finger position of the stocker according to the time length determined by said second determination means, for ejecting The eject disc selecting means for selecting a disc and the first determining means determine that there is no disc,
The eject disc is selected based on the second determination means.
And ejecting means for ejecting the disc selected by the ejecting disc selecting means by the disc transferring means , and a predetermined time for starting when the eject key is turned on.
And a timer for time-up later, wherein the eject disk selection means sets the time of the timer.
Depending on the number of times the eject key is operated up to the point of
A disc reproducing apparatus, characterized in that a disc to be ejected to an eject position is selected . 4. A reproducing unit including a turntable for reproducing a disc, a stocker for accommodating a plurality of discs, loading of a disc inserted into a disc insertion slot into the stocker, ejecting the disc, and exchanging the disc during play. disk transfer means, the loading of the disc, a disc reproducing apparatus having a key operating unit for instructing the eject and play operation, first determining if the disc is in the disc insertion slot
Disc is inserted by the discriminating means and the first discriminating means.
If no the inlet is determined, a second determination means for determining a combination of keys operated simultaneously among the plurality of keys before Symbol key operation section, keys is determined by the second determination means combination depending <br/> change the eject finger position of the stocker, and the eject disk selecting means for selecting a disk to be ejected, the first determination means determines that there is no disk,
The eject disc is selected based on the second determination means.
And ejecting means for ejecting the disc selected by the ejecting disc selecting means by the disc transferring means , and a predetermined time for starting when the eject key is turned on.
And a timer for time-up later, wherein the eject disk selection means sets the time of the timer.
Depending on the number of times the eject key is operated up to the point of
A disc reproducing apparatus, characterized in that a disc to be ejected to an eject position is selected .