JPH07176131A - Disk inserting and ejecting control system - Google Patents

Abstract

PURPOSE:To rapidly reproduce an original disk at the time of disk exchanging process in the wait state of the stop of disk rotation for the process by operating the reproduction of the original disk without performing the normal exchanging process of the disk when the original disk is selected. CONSTITUTION:When the exchange of the disk is instructed by the operation of a operating key 22 of a control unit 2 during the reproduction of the 1st disk in a disk reproducing device 12 of a changer 1, this instruction signal is received by a control microcomputer 21 and a control mechanism 14 is thereby controlled through a control microcomputer 11 to operate the exchange of the disk. The disk reproducing operation of the disk reproducing device 12 is stopped by the microcomputer 21 in response to the instruction signal then the disk rotation stopping process is started, and when a signal of rotation stop is received from the device 12, the reproduction is started after a selected 2nd disk is inserted and processed for placing on. When the exchange or reproduction of the 1st disk is requested again during the period of process stopping the rotation of the disk of the device 12, in the case of the selected disk is the 1st disk, the disk exchanging process is omitted and the instruction signal is sent out so as to start again the device 12 for the reproducing process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc insertion / ejection control system, and more particularly to a disc insertion / ejection control system with improved operability.

[0002]

2. Description of the Related Art In a device for reproducing a disc such as a compact disc (CD) in which audio information is recorded or a laser disc (LD) in which video information is recorded in addition to audio information, a plurality of discs are used. A device having an auto changer function for selecting a desired disc and sequentially reproducing the disc is widely commercially available.

In this type of device, a plurality of discs are stored, a disc selection signal serving as a disc exchange command is received, the selected disc is taken out and placed on a rotary table (magazine). ) Is provided. The disk selection signal is supplied to the storage section by the user operating the operation key. In the automatic changer function operation of sequentially selecting and reproducing a plurality of disks, the rotation of the disks is stopped in response to the disk selection signal, and the disks are ejected after the stopped state is reached. After this ejecting operation, the newly selected disc is taken out from the storage portion, inserted into the reproducing portion, and placed.
Playback operation is started.

[0004]

As described above, in the conventional disc insertion / ejection control system, the rotation of the disc currently being reproduced is stopped when the disc currently being reproduced is exchanged with another disc and the reproduction operation is performed. After that, the disc is ejected, the disc to be reproduced next is inserted and placed, and the reproducing operation is performed.

In such a conventional disc insertion / ejection control system, if there is a disc exchange command and the original disc is selected again by the time the rotation of the disc currently being reproduced is stopped, the original disc is selected. However, after the original disc is ejected and stored in the storage unit, the original disc is taken out again, inserted into the reproducing unit, and placed to perform the reproducing operation.

The operations of ejecting the original disc, storing it in the accommodating section, taking it out of the accommodating section and inserting it in the reproducing section, and placing it are essentially useless processing, and thus the processing operation requires extra time. There is a problem that it will end up.

Therefore, an object of the present invention is that even when the original disc is selected before the rotation stop state of the original disc is reached during the exchange process from the original disc to another disc. An object of the present invention is to provide a disc insertion / ejection control system capable of quickly reproducing the original disc.

[0008]

In order to solve the above-mentioned problems, a disk insertion / ejection control system of the present invention responds to a disk replacement command by selecting a desired one from a storage section in which a plurality of disks are stored. The ejected disc is taken out, the rotation of the first disc currently being reproduced is stopped, the first disc is ejected, and the selected second disc is inserted. In a disc insertion / ejection control system having a changer function, if the first disc is selected again by a disc replacement command before the rotation of the first disc is stopped, the ejection / insertion operation is not performed. The first disc is reproduced as it is.

[0009]

According to the present invention, when the original disk is selected in the disk rotation stop waiting state of the disk replacement processing, the normal disk replacement operation such as disk ejection processing is not performed, and the original disk playback operation is continued. Do.

[0010]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a system configuration diagram showing an embodiment of a disc insertion / ejection control system according to the present invention. The disc insertion / ejection control system according to the present embodiment includes a changer 1.
And control unit 2 and changer 1
Has a control microcomputer 11, a disc reproducing device 12, a control sensor 13, a control mechanism unit 14 for disc exchange and the like, and an eject switch 15. The control unit 2 includes a control microcomputer 21, operation keys 22, a peripheral circuit 23 such as an amplifier, a speaker 24, a tuner receiving circuit 2
5, a display 26 and a reset switch 27.

The control microcomputer 11 of the changer 1 is a microcomputer that controls each part as a whole, and is a disk reproducing device 1.
In 2, a disc is placed and rotated to output a reproduced audio signal. The audio signal is amplified by the peripheral circuit 23 of the control unit 2 and then output from the speaker 24.

The control sensor 13 detects information indicating the control state of the control mechanism 14 and supplies it to the control microcomputer 11. The control microcomputer 11 feedback-controls the control mechanism 14 based on the information from the control sensor. The eject switch 15 sends an eject signal for ejecting the disc to the control microcomputer 11.

Upon receipt of instruction signals for various operations from the operation keys 22 of the control unit 2, the control microcomputer 21
Performs the corresponding control and causes the display 26 to display information such as the operating state. Tuner receiving circuit 25
Is a receiving circuit for AM / FM broadcasting and the like.

In the configuration of FIG. 1, it is assumed that the disc reproducing device 12 of the changer 1 is currently reproducing the first disc. When the operation key 22 of the control unit 2 is operated during the reproduction to instruct the exchange of the disc, the control microcomputer 21 receiving the instruction signal controls the control mechanism 14 via the control microcomputer 11 to exchange the disc. Make an action. That is, in response to this instruction signal, the control microcomputer 21 stops the disc reproducing operation in the disc reproducing device 12, starts the disc rotation stop process, and outputs a signal indicating that the rotation is stopped, to the disc reproducing device 12.
When the second disc selected through the operation of the control mechanism 14 is inserted and placed,
Start playback.

By the way, during the disc rotation stop processing period of the disc reproducing device 12, when the first disc is exchanged and the reproduction request is made again, in the present embodiment, the disc currently being reproduced is confirmed and the disc is exchanged. When the requested disc, that is, the selected disc is the first disc (original disc), the disc exchanging process is omitted and the reproducing process is started again for the disc reproducing device 12. Send an instruction signal.

FIG. 2 shows the operation processing procedure of the above embodiment. In FIG. 2, D CHANGE is a parameter indicating the state of operation processing, “1” indicates a disk change request, “2” indicates a disk rotation stop processing, and “0” indicates an initial value. The process is started. First, the parameter is set to "0" (step S1), it is determined whether or not there is a disk replacement request (step S2), and if it is determined that there is a request, the parameter is set to "1". (Step S3). Next, it is determined whether or not the parameter is "1" (step S4), and if it is determined to be "1",
The current disc position is confirmed (step S5), it is determined whether or not it is the original position (step S6), and if it is determined to be the original position, performance processing is performed (step S7), and the parameters are set. Is set to "0" (step S8),
The process ends through the process of step S9. If it is determined in step S6 that the position is not the original position, disk rotation stop processing is started (step S10), the parameter is set to "2", and the process proceeds to step S9, where the parameter is not "0". Therefore, the process returns to step S2. When it is determined in step S4 that the parameter is not "1", the process proceeds to step S12 and it is determined whether the parameter is "2". here,
If it is determined to be "2", it is determined whether or not the disc rotation has been stopped (step S13), and if YES is determined, the disc ejection process is performed (step S1).
4), set the parameter to "0" (step 15),
The processing is ended via the processing in step S9. If NO in steps S12 and S13,
It operates so as to shift directly to the processing of step S9.

[0017]

As described above, the disc insertion / ejection control system according to the present invention can be used in a normal disc ejection process or the like when the original disc is selected in the disc rotation stop waiting state of the disc replacement process. Since the reproduction operation of the original disc is performed as it is without performing the exchange process, it is possible to save the extra time due to the mechanical operation such as the ejection and insertion operation of the disc. In addition, this process is also advantageous in terms of cost because it can be easily realized by software processing.

[Brief description of drawings]

FIG. 1 is a system configuration diagram showing an embodiment of a disc insertion / ejection control system according to the present invention.

FIG. 2 is a diagram showing an operation processing procedure of the embodiment shown in FIG.

[Explanation of symbols]

 1 Changer 2 Control Unit 11, 21 Control Microcomputer 13 Control Sensor 14 Control Mechanism 15 Eject Switch 22 Operation Key 23 Peripheral Circuit 24 Speaker 25 Tuner Reception Circuit 26 Display 27 Reset Switch

Claims (1)

[Claims] 1. In response to a disc exchange command, a desired selected disc is taken out from a storage unit in which a plurality of discs are stored, and the first disc that is currently being reproduced is awaited for rotation stop. In a disc insertion / ejection control system having a changer function of ejecting the first disc and inserting the selected second disc, and performing a reproducing operation through the inserting action, the rotation of the first disc is stopped. By the way, when the first disc is selected again by the disc exchange command, the first disc is reproduced as it is without performing the ejection and insertion operations. Control system.