JP2596906B2 - Disc player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for controlling a plurality of disc players for selectively reproducing a plurality of different discs by a control device having compatibility.

[0002]

2. Description of the Related Art In order to control a plurality of disc players for selectively reproducing a plurality of different discs, a dedicated control device is used for each disc, or a different disc player for controlling each disc player is used. It was controlled by various kinds of control signals.

[0003]

There is already a first disc player for selectively reproducing a plurality of discs and a first control device for controlling the first disc player. After that, a plurality of discs different from the first disc player are provided. When a second disk player for selectively reproducing one disk is developed and control by the first control device is enabled, the type of the control signal is changed to the first disk player, It cannot be changed with the second disc player. However, in the future, when a second control device is developed and the second control device is connected to each disc player, and wants to switch the display of the second control device to perform optimal control for each, There is no identification means that the disc player is connected to the disc player.

[0004] It is an object of the present invention to provide means for maintaining compatibility in the control of each disc player and making the control device recognize which disc player is connected.

[0005]

Means for Solving the Problems When a first disk player for mounting and selectively reproducing a plurality of disks and starting communication via a communication means, a control for indicating a state of the first disk player to a control device. The second disc player sends a control signal indicating the state of the second disc player to the control device a different number of times than the first disc player when there is a promise to send a signal and then a communication start trigger control signal. Is transmitted, and then a communication start trigger control signal is transmitted.

[0006]

When a second disc player is connected to a control device for controlling a first disc player for selectively reproducing a plurality of discs mounted thereon, whether the first disc player is connected or not, It is not possible to identify whether the disc player is connected, but control is possible because the types of control signals are not different. On the other hand, the newly configured second control device can identify whether the first disk player is connected or the second disk player is connected by the means, and displays the display of the second control device. Switching and optimal control can be performed for each.

[0007]

FIG. 1 is a connection diagram of a first disk player 1 and a first control device 2. In the magazine case 6 for accommodating 10 disks, numbers 1 to 10 are assigned to the respective disks according to the locations where the magazines are accommodated. First
The control device 2 includes a display 7, an operation button 8 for instructing reproduction and stop of the disk, and a button 9 for instructing switching of the disk to be reproduced. And the first control device 2
A control line 5 for notifying the first disk player 1 that control is started, and a first serial communication control line 4 for transmitting a control command to the first disk player 1 by the first controller 2.
Also, the first disk player 1 has a second serial communication control line 3 for sending a signal indicating the state of the first disk player to the first control device 2.

FIG. 2 is a connection diagram of the second disk player 10 and the first controller 2. In the magazine case 11 for storing five disks, numbers 1 to 5 are assigned to the respective disks according to the storage locations. FIG. 5 is a diagram for explaining the processing of the first disk player 1 when the control line 5 is turned on. FIG. 6 is a diagram for explaining the processing of the second disk player 10 when the control line 5 is turned on. FIG.

When the control line 5 is turned on, the first disk player 1 transmits the presence / absence of the magazine case 6 via the first serial communication control line 4 twice, and then transmits the second serial communication control signal. A communication start trigger signal for permitting transmission of the first serial communication control line 4 via the line 3 is transmitted. on the other hand,
When the control line 5 is turned on, the second disc player 2 transmits the presence / absence of the magazine case 11 four times via the first serial communication control line 4 and then transmits the second serial communication control line 3 A communication start trigger signal for permitting the transmission of the first serial communication control line 4 is transmitted via the communication control line 4.

FIG. 8 is a flowchart for explaining a processing procedure when the operation button 8 of the first control device 2 is pressed. Hereinafter, a procedure in which the first control device 2 controls the first disc player 1 and the second disc player 10 will be described with reference to FIG. When the operation button 8 of the first control device 2 is pressed, the first disc player 1 is notified that the control line 5 is turned on and communication control is started. Next, it waits until the first disc player 1 transmits the presence or absence of the magazine case 6, and after receiving the transmission, waits until there is a communication start trigger. After receiving the communication start trigger signal, the magazine case 6 is removed. If so, this is displayed on the display 7 and the process is terminated.

In this process, the first control device 2
No matter how many times the transmission of the presence or absence of the magazine case 6 is performed, the subsequent processing is not affected. If the magazine case 6 is present, a control command to start reproduction is transmitted to the first disk player 1 via the communication means. After the first disc player 1 starts playing, when the operation button 8 or the button 9 is pressed,
The display unit 7 displays the update information of the disk number and the track number sequentially transmitted from the first disk player 1. When the operation button 8 of the first control device 2 is pressed after the start of the reproduction, a stop control command is transmitted to the first disc player 1 via the communication means, the display 7 is turned off, and the process ends.

When the operation button 9 of the first control device 2 is pressed, the first disc player 1 plays the tenth disc at the time of pressing, and the first disc player 1 plays the tenth disc. The control command for switching to the disk with the number plus one is transmitted to the first disk player 1 via the communication means, and the display on the display 7 is also switched.

FIG. 7 is a view for explaining the processing when the second disk player 10 receives a control command for switching the disk number from the first controller 2 via the first serial communication control line 4. . Second disc player 10
Switches to the first disk when disks 6 to 10 are specified. As described above, the first control device 2 can control both the first disk player 1 and the second disk player 10.

FIG. 3 shows a first disc player 1 and a second disc player 1.
FIG. 4 is a connection diagram between the second disk player 10 and the second control device 12. FIG. 9 is a diagram illustrating a processing procedure when the operation button 8 of the second control device 12 is pressed. Hereinafter, a procedure in which the second control device 12 controls the first disk player 1 and the second disk player 10 will be described with reference to FIG.

When the operation button 8 of the second control device 12 is pressed, the control line 5 is turned on to start communication control.
Is notified to the disc player 1. Next, the process waits until the first disc player 1 transmits the presence or absence of the magazine case 6, and at this time, counts the number of transmissions of the presence or absence of the magazine case 6. After receiving the transmission of the presence / absence of the magazine case 6, wait until there is a communication start trigger, and after receiving the communication start trigger signal, terminate the transmission count of the presence / absence of the magazine case 6, and at this time, the transmission number becomes If not more than two times, the first disc player 1 is connected,
Otherwise, it recognizes that the second disc player 10 is connected.

Next, if the magazine case 6 is not present, the effect is displayed on the display 7 and the processing is terminated. If the magazine case 6 is present, the first disc player 1
To send a control command to start playback. After the first disc player 1 starts playing, if the operation buttons 8 and 9 are not pressed, the first disc player 1 receives the disc number and track number update information sequentially transmitted from the first disc player 1, When the discriminating means of the first disc player 1 and the second disc player 10 recognizes the disc player as the first disc player 1, the updated information is displayed on the display 7.

If the disc is recognized as the second disc player 10 and receives a disc number of 6 or more,
A control command for switching to the first disc is transmitted to the second disc player 10 via the communication means. When the operation button 8 of the second control device 12 is pressed, a stop control command is transmitted to the second disc player 12 via the communication means, the display 7 is turned off, and the process is terminated.

When the operation button 9 of the second controller 12 is pressed, the first disc player 1 and the second disc player 10 recognize the first disc player 1 by the recognition means.
And when the 10th disc is being played at the time of pressing, or when the second disc player 10 is recognized and the 5th disc is being played, the first disc is played. A control command for switching to the disc, otherwise to the disc number obtained by adding 1 to the number being reproduced, is transmitted to each disc player via the communication means, and the display on the display 7 is also switched. As described above, the second control device 12 recognizes the first disc player 1 and the second disc player 10 and switches the display.
Optimal control can be performed for each.

[0019]

As described above, according to the present invention, not only the compatibility of the control of a plurality of disc players on which different numbers of discs are placed and selectively reproduced, but also a special discrimination control signal is provided. It is possible to identify that different numbers of disc players are connected to the control device without using, and it is possible to perform optimal control for each disc player.

[Brief description of the drawings]

FIG. 1 is a connection diagram of a first disc player and a first control device according to an embodiment of the present invention.

FIG. 2 is a connection diagram of a second disc player and a first control device according to an embodiment of the present invention.

FIG. 3 is a connection diagram between a first disc player and a second control device, showing one embodiment of the present invention.

FIG. 4 is a connection diagram showing a second disc player and a second control device according to an embodiment of the present invention.

FIG. 5 is a flowchart illustrating a process performed by a first disc player capable of reproducing 10 sheets at the start of communication.

FIG. 6 is a flowchart illustrating a process performed by a second disc player capable of reproducing five sheets at the start of communication.

FIG. 7 is a flowchart for explaining processing when a second disk player receives a disk switching instruction.

FIG. 8 is a flowchart illustrating a process when a button 8 of the first control device is pressed.

FIG. 9 is a flowchart illustrating a process when a button 8 of the second control device is pressed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st disk player 2 1st control apparatus 3 2nd serial communication control line 4 1st serial communication control line 5 control line 6 magazine case 7 display 8 operation button 9 operation button 10 2nd disk player 11 Magazine case 12 Second control device

Claims (1)

(57) [Claims] 1. A control device having at least a display means and a communication means, and means for selectively reproducing a plurality of disks by a control signal of the communication means when connected via the communication means of the control apparatus. The first disc player has the following configuration.
Means for selectively playing back a plurality of discs less than the first disc player when there is a promise to send a control signal indicating the state of the disc player one or more times and then send a communication start trigger control signal. And the first
In the second disc player having the same communication means and the same type of control signal as the disc player of the above, the control signal indicating the state to the control device at the start of communication is transmitted a different number of times from the first disc player. A disc player comprising a procedure for transmitting and then transmitting a communication start trigger control signal, and comprising switching means for switching the display of the control device.