JPS60246060A - Disk reproducer - Google Patents

Abstract

PURPOSE:To attain the continuous reproduction of a disk with no idle time by using an alternate play switch and actuating alternately two reproduction units having the same reproduction function. CONSTITUTION:When a power supply switch 19 is turned on, the power is supplied to both a main reproduction unit 13 and a secondary reproduction unit 14. Thus both units are actuated. Then an alternate play switch 23 is turned on, and then a play start key of a play switch 22 is turned on. Thus the 1st music of the 1st disk is started with the unit 13. Then the play of the 1st disk of the unit 14 is started as soon as the play of the 1st disk of the unit 13 is over. Then a microcomputer circuit sends signals supplied from a traverse control circuits 26 and 28 to a reproduction circuit 27 so that the unit 13 changes the 1st disk to the 2nd one.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a disc playback device capable of playing a plurality of discs.

Conventional Structure and Problems Optical disc playback devices capable of playing a plurality of discs have been commercialized.

A conventional multi-disc optical disc reproducing device will be described below.

Fig. 1 shows part of a conventional optical disc playback device, in which 1 is a disc case, 2 is a disc, 3 is a gear attached to the disc case 1, 4 is a traverse, 5 is a
8 is an optical pickup, 8 is a disk loading arm, 9 is a shaft, 10 is a shirt for moving the traverse 4) -11° 12 is a fixture for the shaft 10.

To explain the operation of the optical disc playback device with the above configuration, when one of the several dozen discs in the disc case 1 is designated for playback, the traverse 4 moves the disc 2'f: The disc loading arm 8 moves toward the disc case 1 and grabs the disc 2. Then, the disc loading arm 8 takes the disc 2 into the traverse 4 while grasping it, and places it on the turntable 6.

And the disc -2 placed on the turntable 6
is firmly fixed to the turntable 6 by the disc clamper 5 and begins to rotate. The optical pickup 7 takes out the signal recorded on the disc 2 and starts playing.

When the performance is finished, the rotation of the disc 20 is stopped, and the disc loading arm 8 grips the disc 2 again and returns the disc 2 to its original position in the disc case 1. Then move the traverse 4 to the position of the next performance disc 1
Start playing the next disc.

However, it takes about 10 to 16 seconds to start playing the first disc, which is very inconvenient when playing continuously for business purposes, and is also inconvenient for business purposes.
is.

OBJECT OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and by combining two optical disc playback devices with a plurality of discs and causing the two units to play alternately, there is no need to wait for discs to be replaced. The purpose is to provide a complete disc playback device that enables performance.

Structure of the Invention The present invention combines the upper part of the disc playback device excluding the key manual input and other component parts for two disc playback devices, and uses two control units to display the key manual input and control the system control for two units. It is constructed so that it can be played, and the two traverses are moved alternately using a switch on the father's 4L performer, allowing for continuous performance with no idle time.

DESCRIPTION OF EMBODIMENTS FIG. 2 shows an optical disc reproducing apparatus according to an embodiment of the present invention.

In FIG. 2, reference numeral 13 denotes a main playback unit that is fully equipped with a control section, 14 a sub-playback unit 1-ts controlled by the main playback unit 13, a disc case of the main playback unit 13, and 16 a disc case of the sub-playback unit 14. -17 and 18 are switches for taking out the disc cases 15 and 16; -19 is a power switch; 20 is a display for displaying the performance status; 21 is a program key switch; 22 is a performance key switch; and 23 is an alternate performance switch.

The operation of the optical disc reproducing apparatus of this embodiment configured as described above will be explained below.

First, when the power switch 19 is turned on, power is supplied to both the main reproduction unit 13 and the sub-reproduction unit 14, and the apparatus enters the operation start state. Next, turn on the alternate performance switch 23 and turn on the performance start key 1 of the 2 performance key switch 22.
The first disc of the main reproduction unit 13 is reproduced without being shuffled, and the first disc of the sub-reproduction unit 14 stands by at the beginning of the first track. Then, at the same time as the main playback unit 130 finishes playing the first disc, the first disc of the sub-playback unit l-14 starts playing, and the main playback unit 13 replaces the second disc and waits at the beginning of the first track. do. Then, as soon as the sub-playback unit 14 finishes playing, the main playback unit starts playing, and as soon as the main playback unit 13 finishes playing, the sub-playback unit 14 starts playing immediately, so that continuous play is performed up to the last disc.

FIG. 3 is a diagram showing the internal circuit configuration of the main reproducing unit 13 and the sub-reproducing unit 14, and FIG. 4 is a flowchart illustrating the operation of this apparatus.

In FIGS. 3 and 4, 24 is an alternate performance switch;
25 is a system control microcomputer circuit, 26 is a traverse control circuit for the main reproduction unit, and 27 is a reproduction circuit shared by the main and sub-surface reproduction units.

To explain the operation of the circuit shown in Fig. 3, the alternate performance switch 2
4 is in the "on" state, the system control microcomputer circuit 261d) Rubber control circuits 26 and 28
An appropriate command output is sent to alternately move the two, and the music is played alternately. The signal outputs from the respective traverse circuits 26 and 28 are alternately sent to the reproduction circuit 27, where they are processed and output.

As described in Section 2, according to the fifth embodiment, by providing the alternate performance switch 23 and having the two playback units with the same playback function alternately play, it is possible to perform continuous play without any gap time. .

Although the alternate performance switch 23 is shown as a two-way switch, it may also be a button switch, a key switch inputted by a microcomputer, or the like.

Furthermore, any disc playback method may be used for the playback of the disc.

Effects of the Invention The present invention provides an entertainment switch and alternately reproduces two reproduction units with the same reproduction function.
It is possible to provide an optical disk playback device in which the playback units cancel each other out the loss of time required for traverse movement and disk ejection, and are capable of continuous performance playback without idle time.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a conventional multi-disc playback device, FIG. 2 is a perspective view of a disk playback device according to an embodiment of the present invention, and FIG. 3 is a block diagram of the same embodiment.
FIG. 4 is an operational flowchart of the same embodiment. 1...Disk case +2...'F4 disk, 4
-... Traverse, 7... Optical pickup, 13... Main playback unit, 14... Sub-playback unit, 16.16... Disk case, 19
...Power switch-23...Alternate performance switch. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure f! ? Figure 2 4 Figure 3 3 Figure 4

Claims (1)

[Claims] a first disc playback unit; a second disc playback unit having the same function as the first disc playback unit; an operation unit integrated with the first disc playback unit; A disc reproducing device equipped with an alternate performance switch for alternately and continuously reproducing a disc reproducing unit.