JPH05101512A - Disk changer device - Google Patents

Abstract

PURPOSE:To eliminate unnecessary time and labor of a user by not performing disk detection neither programming at the time when a magazine which is already controlled for reproducing is set and a clear key is not operated. CONSTITUTION:One disk is stored in each of six storage slots 61 to 66 of a magazine 6, and a prescribed bar code is stuck to the rear face of the magazine 6. When the magazine which is already controlled for reproducing is set to a disk changer main body, a control circuit 28 operates a bar code reader 4 to read contents of the bar code and monitors the operation of a clear key 25 for 5 seconds, and reproducing is controlled based on contents of a data memory 29 if the key 25 is not operated. If the clear key 25 is operated, contents of the data memory 29 are cleared, and reproducing is controlled in the initial state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc changer device having a magazine for storing a plurality of discs.

[0002]

2. Description of the Related Art Conventionally, in the field of audio equipment, etc., C
A system for reproducing data recorded on a disk called a D or a compact disk by using a laser beam has been developed, and more recently, JP-A-62-219260.
As disclosed in the publication, a disc changer device has been developed in which 5 to 6 discs are housed in a magazine so that the discs can be sequentially played arbitrarily.

By the way, in this disc changer device, for example, as disclosed in Japanese Patent Laid-Open No. 60-40560, when a magazine is mounted, the disc is inserted into any of the storage slots of this magazine. And the ejecting device for ejecting the disc is operated only when the storage slot containing the disc is designated.

Further, after the magazine is mounted, the music can be played on all the discs in a predetermined order by user programming.

[0005]

However, in the above-mentioned structure, when the magazine is detected every time the magazine is mounted and the user needs to perform predetermined programming, the contents of the magazine are not changed. It was a waste of time and effort.

[0006]

DISCLOSURE OF THE INVENTION A disc changer device of the present invention is a disc changer device comprising a changer body and a magazine capable of accommodating a plurality of discs and detachably mounted on the changer body. , Means for storing information about the magazine, a clear key, and when the clear key is not operated when the magazine is attached to the changer body, the information about the magazine is read from the storage means, and based on this It is provided with means for performing reproduction control and performing reproduction control from the initial state when the clear key is operated.

[0007]

Since the present invention is configured as described above, when the magazine is mounted on the changer main body, for example, no disk detection for the magazine is performed and it is not necessary for the user to perform predetermined programming. And if you swap the magazine disks,
By operating the clear key, the reproduction is controlled from the initial state.

[0008]

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

FIG. 1 is a perspective view of a disc changer device of the present invention, in which (1) is a changer main body incorporating a disc mounting mechanism (12), a pickup (12), etc., which will be described later, and a magazine ( A magazine outlet (2) for attaching and detaching 6) is formed. In the magazine outlet (2), ribs (3) and (3) for forming a gap with the magazine (6) are provided, and a well-known bar is provided between the ribs (3) and (3). A code reader (4) is provided. Further, a tact switch (5) for detecting that the magazine (6) has been inserted is provided inside the magazine outlet (3). (6) is a magazine, and six storage slots (61) and (62) distinguished from each other by six numbers from 1 to 6 (hereinafter referred to as disc numbers).
... (66) with one disk for each storage slot
Stores one sheet. In addition, on the back side of this magazine (6),
A label (7) having a barcode printed thereon is attached as shown in FIG. The bar code of the label (7) is set so as to be different for each of the plurality of magazines (7) so that the magazines can be identified. Thus,
As shown in FIG. 3, when the magazine (6) is inserted into the changer body (1), the barcode of the label (7) is read by the barcode reading device (4).

FIG. 4 shows a block diagram of the disk changer device of the present invention, in which (8) is a disk mounting mechanism, which takes out one of the disks from the magazine (6) and rotates the spindle motor (9). The disc is placed on the turntable (10) fixed to the shaft and clamps the disc in cooperation with a clamp member (not shown), and the disc on the turntable (10) is stored in the magazine (6). .. (11) is a drive circuit for operating the disk mounting mechanism (8). The configurations of the magazine (6) and the disc loading mechanism (8) are described in, for example, Japanese Patent Laid-Open No. 63-
No. 211163, etc. (12) is an optical pickup equipped with an objective lens (13), (1
4) is a focus control circuit for the pickup, (15)
Is a tracking control circuit of the pickup (12). (16) is a disk rotation control circuit for controlling the rotation speed of the disk, which is the spindle motor (9).
Control the rotation of. (17) is a high frequency amplifier circuit for high frequency amplifying the digital signal obtained from the pickup (12), and (18) is a digital signal processing circuit for performing error correction, time axis correction and demodulation processing on the digital signal from the high frequency amplifier circuit. And a subcode representing an index such as a music number and a time code representing a playing position contained in the digital signal is separated. (19) is D /
In the A converter, the digital signal processing circuit (18)
The obtained digital audio signal is converted into an analog audio signal. (20) is an amplifier, which is the D /
The analog audio signal obtained from the A converter (14) is amplified. Reference numeral (21) includes a reproduction key (22), a program reproduction key (23), an end key (24), a clear key (25), a ten key (26) for inputting a program for program reproduction, and a program key (27). A key circuit, (28) is a control circuit composed of a microcomputer, and is a TOC (Table of Contents) obtained from the digital signal processing circuit (18).
Based on the information, the subcode and the signal from the key circuit (21), data is transferred to and from the data memory (29), and the drive circuit (11) and the tracking control circuit (1)
5) and a control signal to the disc rotation control circuit (16).

The data memory (29) has an area for storing disc presence information and program reproduction information corresponding to ten magazines.

FIG. 5 is a block diagram of the program of the main part written in the control circuit (28), and the operation will be described based on this.

First, when the magazine (6) is inserted into the changer body (1) and the switch (5) is turned on, the control circuit (28) activates the bar code reading device (4) to cause the magazine (6) to operate. ) The content of the barcode is read (steps S-1 and 2). By the way, this bar code corresponds to any of the numbers 1 to 10, and the control circuit (2
8) detects whether or not data is written in the area of the data memory (29) corresponding to the numeral (step S-3). If no data has been written (all "0"), disk check processing is performed and the check contents are stored in the area of the data memory (29) corresponding to the magazine (6) number (step S-4). ,
5). This disk check process is a magazine (6)
It is to detect which storage slot the disk is stored in, specifically, by operating the disk mounting mechanism (7) for each storage slot.

After the disk check, the control circuit (2
8) detects whether or not there is a program input for program reproduction (step S-6). For this program input, for example, after operating the program key (27), the disk number is input by the ten key (26), and then the program key (27) is operated again, and then the ten key (26) is input.
You can do this by entering the song number. If there is a program input, the control circuit (28) stores the registered content in the area of the data memory (29) corresponding to the magazine (6) number (step S-7). After this,
The control circuit (28) controls the reproduction based on the contents of the key circuit (21) and the data memory (29) (the area corresponding to the number of the magazine (6)) (step S-8).

The program input for program reproduction can be performed at any time.

In step S-3, if the data is stored, the control circuit (28) monitors the operation of the clear key (25) for 5 seconds and, if operated, clears the data ( Steps S-9, 10). This is in consideration of the case where the content of the disc of the magazine (6) is changed, such as when the disc of the magazine (6) is replaced, and after clearing, the above-described step S-4 is performed.
To move to and store new data.

If the clear key (25) is not operated,
In the same manner as the key circuit (2
The reproduction control is performed based on the contents of 1) and the data memory (29) (steps S-8 and 9).

Although the bar code is used in the above-mentioned embodiment, as shown in FIGS. 6 and 7, a magnetic stripe (30) such as a cash card is provided on the back side of the magazine (6), and the ribs (3) (3) are provided. ) Between the magnetic head (3
1) may be provided. The front and rear portions of the magnetic stripe (30) are formed with tapers (32) and (32) in consideration of contact with the magnetic head (31).

By the way, in this structure, when the magazine (6) is taken out, the contents of the data memory (29) are passed through the magnetic head (31) to the magnetic stripe (30).
When the magazine (6) is inserted into the changer body (1), the contents of the magnetic stripe (30) are read out via the magnetic head (31) and stored in the data memory (29). .. This allows
The data memory (29) need only be the area for one magazine.

The other operations are similar to those of the above-described embodiment.

[0021]

Since the present invention is configured as described above, if the contents of the magazine disk do not change,
Each time the magazine is mounted on the changer main body, for example, no disk detection is performed on the magazine, and it is not necessary to perform predetermined programming by the user, and waste of time and labor can be eliminated.

[Brief description of drawings]

FIG. 1 is a perspective view of a disc changer device of the present invention.

FIG. 2 is likewise a perspective view of the magazine.

FIG. 3 is a sectional view of the main part of the changer body.

FIG. 4 is likewise a block diagram.

FIG. 5 is a flowchart of a main part program written in the control circuit.

FIG. 6 is a perspective view of a magazine of a disc changer device according to another embodiment of the present invention.

FIG. 7 is a sectional view of the main part of the changer body.

[Explanation of symbols]

 1 Changer body 6 Magazine 25 Clear key 28 Control circuit 29 Data memory

Claims (1)

[Claims] 1. A disc changer device comprising a changer body and a magazine capable of accommodating a plurality of discs and detachably mounted on the changer body, a means for storing information about the magazine, and a clear. When the clear key is not operated when the key and the magazine are attached to the changer main body, information regarding the magazine is read from the storage means, reproduction control is performed based on the information, and the clear key is operated. Is a disc changer device having means for controlling reproduction from an initial state.