JPH0589586A - Disk playing device - Google Patents

Abstract

PURPOSE:To provide a disk playing device which eliminates a long waiting time caused by the exchange of a disk. CONSTITUTION:The device consists of a disk tray 15 which contains plural disks D, a first and a second changer mechanisms 14a and 14b which take out a disk D from the disk tray 15 and perform a disk play. And when a next playing disk is designated prior to the completion of the disk playing by the first changer mechanism 14a, the second changer mechanism 14b moves and picks up a designated disk D from the disk tray 15 while the first changer mechanism 14a disk playing continues and after the completion of the disk playing in the first changer mechanism 14a, the disk playing takes place at the changer mechanism 14b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc playing device for playing a compact disc, a laser disc or the like, and more particularly to a disc playing device having a disc autochanger.

[0002]

2. Description of the Related Art In recent years, various disc playing devices equipped with a disc autochanger have been commercialized as commercial karaoke equipment and the like.

FIG. 5 is a block diagram showing an example of such a disc playing device. As shown in the figure, this disc playing device has a first and a second disc housing a plurality of discs.
Disc trays 1 and 2 are arranged so as to face each other with a carrier 3 for disc exchange interposed therebetween. The carrier 3 is capable of reciprocating in the direction of arrow A between the disc racks 1 and 2, and takes out a disc designated from the outside from the disc racks 1 and 2 and carries it to the player 4, and further discs after the performance. The racks 1 and 2 are operated to return to the original disk storage positions.

Here, an address of each disk storage position is assigned as a disk number to each disk stored in each disk rack 1 and 2.
By designating this disc number, the disc extraction work by the carrier 3 is performed.

However, in such a disc playing apparatus, even if the next disc number is designated during the playing of the disc, a long waiting time due to disc exchange is required from the end of a certain disc playing to the start of the next disc playing. Occurs. This is to return the disc on which the carrier 3 has finished playing to the disc racks 1 and 2 and then to retrieve the next designated disc.

[0006]

As described above, the conventional disc playing apparatus has a problem that a long waiting time occurs during disc playing.

The present invention is intended to solve such problems, and an object of the present invention is to provide a disc playing device capable of performing continuous disc playing without requiring a long waiting time due to disc replacement.

[0008]

In order to achieve the above-mentioned object, the disc playing apparatus of the first invention is movable along a disc tray accommodating a plurality of discs and a disc arranging direction in the disc tray. And a first and a second changer mechanism for taking out a disc from the disc tray and playing the disc, and when the next playing disc is designated before the end of the disc playing by the first changer mechanism. The second changer mechanism moves during the disc playing by the first changer mechanism to take out the designated disc from the disc tray, and after the disc playing by the first changer mechanism is finished, It is configured to play a disc with the changer mechanism.

In order to achieve the above-mentioned object, the disc playing device of the second invention accommodates a plurality of discs, and a disc tray designated from a disc tray in which a unique address is assigned to each disc storing position. In a disc playing device for playing a disc by taking out the disc based on an address corresponding to a number, when a plurality of discs of the same type are stored in the disc tray, a plurality of addresses can be associated with one disc number It is characterized by doing.

[0010]

In the disc playing apparatus of the first invention, the first and second changer mechanisms for sharing one disc tray for playing the disc are provided, and the following change is performed before the disc playing is completed by the first changer mechanism. When a performance disc is designated, the second changer mechanism moves while the disc is being played by the first changer mechanism to take out the designated disc from the disc tray, and after the performance of the disc by the first changer mechanism is completed, Perform disc performance with the second changer mechanism. Therefore, according to the present invention, even when the performance discs are continuously designated, the continuous disc performance can be performed without requiring a long waiting time due to the disc exchange.

Further, in the disc playing device of the second invention, a plurality of addresses are associated with one disc number, so that a plurality of discs of the same type are stored in the disc tray and the discs are taken out from the plurality of addresses. be able to. Therefore, if the present invention is applied to a device having, for example, two players, the discs can be alternately taken out from each address when the same disc is continuously designated for performance, and there is no waiting time due to disc exchange. A continuous disc performance can be realized.

[0012]

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

FIG. 1 is a perspective view showing the structure of a disk playing device according to an embodiment of the present invention. In the figure, 11
Is the main chassis, 12a and 12b are the main chassis 1
1 shows a pair of side chassis fixed to both ends of 1. A single guide shaft 13 is stretched over each of the side chassis 12a and 12b, and two changer mechanisms 14a and 14b (first
The changer mechanism 14a and the second changer mechanism 14b) are reciprocally supported in the direction of arrow A. Further, reference numeral 15 is a disc tray for accommodating a plurality of discs D, and the disc tray 15 is a pair of tray insertion / removal guides 16a, 16 provided on the main chassis 11.
It is possible to take in and out along b. A disc retainer 17 is attached to the disc tray 15 to prevent the disc D from falling off.

Further, each changer mechanism 14a, 14b has a drive mechanism system for moving itself along the guide shaft 13, a player section for playing a disk, and a disk tray 15 and a player section for loading and unloading the disk D. It has a lever 18 and a pair of disc guides 19a and 19b for performing the above, and a sensor holding portion 20 holding a light transmission type sensor for positioning the changer mechanism with respect to the disc tray 15.

Next, the operation of the disc playing device will be described.

In this disc playing device, both sides of the storage position of the disc tray 15 are dedicated positions for the changer mechanisms 14a and 14b for playing the disc, and the changer mechanisms 14a and 14b are provided.
With b set as the initial position, it waits until a performance command from the user is generated.

After that, the disc number by the user,
When the side (A side / B side) and the music number are designated, the first changer mechanism 14a starts moving from the initial position and stops when the target disc storage position is reached. Then, the lever 1 of the first changer mechanism 14a
8 rotates in the direction of arrow C, and at the same time, each disc guide 1
As the discs 9a and 19b move closer to each other, the target disc D is extracted from the disc tray 15 and conveyed to the player unit along the disc guide paths formed between the disc guides 19a and 19b.

After the disc D is set in the player section in this way, the first changer mechanism 14a starts moving toward its initial position and, after reaching the initial position, starts playing the disc.

Here, the first changer mechanism 14
The case where the next performance disk is designated before the disk performance at a is completed will be described.

In this case, the second changer mechanism 14b
Starts moving toward the target disc storage position during disc playing by the first changer mechanism 14a, and after reaching, takes out the designated disc D from the disc tray 15 and returns to the initial position. When returning to the initial position, the first
If the changer mechanism 14a is still playing, the second
The changer mechanism 14b of the
After the disk performance of the first changer mechanism 14a is completed, the disk performance of the second changer mechanism 14b is started.

On the other hand, the first changer mechanism 14a is
When the performance of the second changer mechanism 14b is started, the disk D after the performance is started to move back to the disk tray 15, and after returning the disk D to the disk tray 15, the disk D returns to the initial position.

Thus, according to the disc playing device of this embodiment, the changer mechanisms 14a and 14b are alternately operated in response to consecutive disc playing commands to perform continuous disc playing, thereby eliminating the waiting time due to disc exchange. You can

Next, another embodiment of the present invention will be described.

FIG. 2 is a diagram for explaining the configuration of the disk playing device of this embodiment.

As shown in the figure, this disc playing device has a first and a second discs respectively accommodating a plurality of discs.
The disc trays 31 and 32 are arranged opposite to each other with a carrier 33 for disc exchange interposed therebetween. Further, in this disc playing device, first and second players 34 and 35 for playing discs are arranged opposite to each other along with the respective disc trays 31 and 32.

In the disc playing device having such a structure, a unique address is assigned to the disc storage position of each disc tray 31, 32. The carrier 33 takes out the target disc from the disc racks 31, 32 based on the address corresponding to the disc number designated by the user, and removes the player 34,
It is carried to 35 and is further operated to return the played disc to the original position of the disc rack 31, 32.

In this disc playing device, disc trays 31 and 32 are used for frequently used discs.
By storing two discs of the same type in the disc, even if performance instructions for the discs of the same type are issued successively, the discs can be used alternately to eliminate the waiting time due to disc exchange. Has been realized.

However, if two identical discs are stored, the correspondence between disc numbers and addresses, which should be unique for each disc type, becomes a problem. Therefore, in the present embodiment, the address changing unit 3 for performing the operation of associating the address of the disc added later from the two discs with the disc number of the disc originally present.
6 is provided.

FIG. 3 is a flow chart showing the operation procedure of the address changing unit 36. For example, when a disc with the disc number “101” is newly stored in the address “172” of the first disc tray 31, first enter “172” with the ten keys (step 301),
Next, the change key is pressed (step 302). Then, after inputting "101" with the ten keys (step 303), the change key is pressed again (step 304). As a result, the disc number “101” and the address “172” are associated with each other.

Next, the operation of the disc playing device will be described with reference to the flowchart of FIG.

First, the user inputs the disc number, side, and tune number to be played first through the commander 37 (step 401). For example, "101A0
It is assumed that "1" is input. Here, "101" is the disc number, "A" is the side, and "01" is the song number.

In this case, the carrier 33 regards the disk number as it is as an address of the disk tray 101 in which the target disk is stored, and starts moving toward the disk storage position (step 402).

After the movement, the carrier 33 is mounted on the disc tray 3
The target disc is taken out from the disc 1, the disc is held, the disc is moved to the positions of the players 34 and 35 (step 403), and the disc is set in the first player 34. Then the disc performance is started (step 40).
4).

When the next music selection operation is performed during the performance of the disc (step 405), it is determined based on the disc number whether the designated disc is currently in use (step 406).

As a result, if the designated disc is not in use, the carrier 33 moves the disc number as it is as an address (step 407), takes out the disc, and moves to the positions of the players 34 and 35 (step 408). ), The disc is set in the second player 35 (step 409). Second with the disc set
The player 35 is put in the styby state as it is.

If the designated disk is in use, the address corresponding to the input disk number is checked based on the new correspondence between the disk number and the address defined by the address changing unit 36 (step 410). ). Then, the carrier 33 moves based on this address (step 407), takes out the disc, and moves to the positions of the players 34 and 35 (step 40).
8) Set the disc in the second player 35 (step 409).

After that, when the disc playing by the first player 34 is finished (step 411), the disc playing by the second player 35 is started (step 41).
2).

On the other hand, the disc that has been played by the first player 34 is held by the carrier 33 and is held by the disc tray 31.
Is returned to the original storage position (step 413).

Thus, according to the disc playing apparatus of this embodiment, even if discs of the same type are continuously designated for playing, continuous disc playing can be performed without waiting time for disc replacement.

Further, in this disc playing device, since two addresses storing the same disc can be associated with one disc number by using the address changing unit 36, it is troublesome to change and input the disc number when selecting a song. No operation is required, and operability can be improved.

In this embodiment, two disc trays are provided, but the present invention can be applied to a disc playing device having one disc tray.

Furthermore, the present invention can be applied to a disc playing device in which a carrier and a player are integrated.

[0043]

As described above, according to the disc playing apparatus of the present invention, even if the playing discs are continuously designated, continuous disc playing can be performed without waiting time for disc replacement.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a disc playing device according to an embodiment of the present invention.

FIG. 2 is a diagram for explaining the configuration of a disk playing device according to another embodiment of the present invention.

3 is a flowchart showing an operation procedure of an address changing unit in the disc playing device of FIG.

FIG. 4 is a flowchart showing a flow of operations of the disc playing device of FIG.

FIG. 5 is a diagram for explaining the configuration of a conventional disc playing device.

[Explanation of symbols]

11 ... Main chassis, 12a, 12b ... Side chassis, 13 ... Guide shaft, 14a, 14b ... Second changer mechanism, 15 ... Disc tray, 16a, 16
b ... tray insertion / removal guide, 17 ... disk retainer, 18 ... lever, 19a, 19b ... disk guide, 20 ... sensor holding portion, 31, 32 ... disk tray, 33 ... carrier, 34, 35 ... player, 36 ... address change Unit, 37 ... Commander.

Claims (2)

[Claims] 1. A disc tray accommodating a plurality of discs, and first and second changers that are movable along the disc arrangement direction in the disc tray and take out the discs from the disc tray to play the discs. And a second changer mechanism is moved during a disc performance by the first changer mechanism when a next performance disc is designated before the end of the disc performance by the first changer mechanism. The disc playing apparatus is characterized in that the designated disc is taken out from the disc tray, and after the disc playing by the first changer mechanism is completed, the disc playing by the second changer mechanism is performed. 2. A disc tray is loaded with a plurality of discs and a unique address is assigned to each disc storage position, and the discs are taken out based on an address corresponding to a designated disc number to perform a disc performance. The disc playing device is characterized in that, when a plurality of discs of the same type are stored in the disc tray, a plurality of addresses can be associated with one disc number.