JPS5990258A - Automatic disk playing system - Google Patents

Abstract

PURPOSE:To select selectively many pieces of music in order and to play them automatically without any break by using a disk exchanger and interchanging automatically specific disks between a file and an unloaded player. CONSTITUTION:The disk file 2 contains numbers of disks 1 in parallel and three disk players 3 are provided facing it; and the disk exchanger 7 which has a local controller is arranged between a guide shaft 10 and a feed screw 11 between them. A specific disk 1 in the file 2 is selected under the loading command of a computer and passed to an unloaded player to be played, and then returned to its original position under the unloading command. Thus, many pieces of music are selected successively and played automatically, one after another, without any break.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an automatic disc performance system using a disc such as a digital audio disc applied to an optical disc reproducing device.

BACKGROUND TECHNOLOGY AND PROBLEMS Conventionally, automatic disc playing devices include jukeboxes that use regular record discs with sound grooves formed on the surface, but because it takes time to change discs in disc players, This system was unsuitable for use as an automatic disc performance system for use in broadcasting stations or karaoke, where it is necessary to sequentially select and retrieve the desired songs from a soft disc and automatically perform them one after another without any delay.

OBJECTS OF THE INVENTION The present invention seeks to provide an automatic disc playing system capable of correcting the above-mentioned defects.

Summary of the Invention The present invention relates to a disk file in which a large number of disks are stored in parallel at predetermined intervals and in contact with each other.

Selectively taking out and transporting a predetermined disc from a large number of discs stored in the plurality of disc players and the disc file, and selecting the transported disc to a disc player in which a disc is not installed among the plurality of disc players. From the above disk file by the above disk changer and the disk changer installed on the ! ! An automatic disc playing system comprising a control device for selectively ejecting the ejected disc, selectively loading the ejected disc into the disc player, and controlling playback of the disc by the disc player in which the disc is loaded, the system comprising: It is possible to sequentially select and take out the songs that one wants to play from among the discs and automatically play them one after another without any delay.

EXAMPLE The present invention will be explained below based on a practical drawing of an optical disc automatic performance system using an optical disc such as a digital audio disc.

First, Figures 1 and 2 show the entire optical disc automatic performance system, in which a large number of discs (11
For example, four disk files (2) are arranged in a row in which disk files (2) are stored adjacently in parallel at a predetermined interval. As is well known in the past, in addition to the valley disks (IJs each containing several to several songs), several songs are recorded, the valley disk file (2) contains several to several dozen disks (IJs are stored). Therefore, there are 0 songs to 00 songs in the valley disk file (2), and the number of files for that song x disk file (2)
The system will be managed by two optical disc automatic performance systems. By the way, normally it is not possible to directly access the valley disk file (2) from the outside to remove or rearrange the disks (1), but each valley disk file (2) can be attached and detached. As a result, the disk (1) is configured to allow file exchange on a block-by-block basis in units of each disk file+21.

Next, for example, three disc players (3) for optically reproducing the disc (1) are arranged in a row.
J'Y 4 ([They are arranged in a row parallel to each other in a position facing the disc file (2) of W.Then, each disc player (3) plays the mounted disc (1). and a rotating disk rotating table (4).

An optical playback head (5) that scans and reproduces the disk in the radial direction of 7 + 11'Y to be rotated, and the mounted disk (II') is pressed and fixed to the disk rotating table (4), and the disk rotating table (4) is provided with a disk fixing device t61 etc. for stably rotating the disk (1).The settani disk player (3) is equipped with a disk that is installed in accordance with instructions from a computer (to be described later). ) starts playing automatically, but when the disk (110) starts playing automatically, it has a function to detect the beginning of the song (II) and the end of the song and notify the computer. When receiving the command (unloading), stop the disk rotating table +417a', and
You will have 2 receivers until you pass it on to the non-disc changer, which will be described later.

Next, between the upper Nr2 disc file + 21 row disc player (3) and the chest, parallel #
A disc changer (7) is provided.

This disk changer (7) selectively takes out a predetermined disk (11) from a large number of disks (1) stored in four disk files (2) according to a loading instruction from the computer. transport,
Of the three disc players (3), no disc is installed (
Selectively load the loaded disc (1) onto the disc player (3) of the disc player (3) that is empty and ready for playing, and follow the unloading command from the computer hawkers to unload the disc (1) after playback. It has a function to return the disc file (2) to its original storage position.At this time, the commands that the computer λ also receives are the source (position to take out the disc) and testation (position to insert the disc). So that only the parameters of
) Disc changer (7) has the following O-77/
A lz controller is attached.

By the way, the disc changer (7) shown here has a guide shaft (101) and a feed screw Uυ arranged parallel to each other, as shown in Example 1, Figure 2, and Figure 2. The screw ring is configured to be reciprocated along the guide shaft (10) by being driven to rotate forward and backward by a pulse motor (121).

In this case, in order to make it easier to understand the limiting operation of the local controller for control, which will be described later, for example, the disk changer (71'f) is automatically moved to the reset position indicated by the imaginary line in Fig. 2 by applying electromagnetic power. The disk changer (
An abunlute encoder is attached along the movement path of 7), and this abunlute encoder outputs an output proportional to the relative position of the disc file (2j's valley disc storage position and the current position of the disc changer (7)). With this configuration, it is possible to control the movement of the disc changer (7) without having to return it to the reset position each time.

Next, FIG. 3 shows an example of a disc changer (7), in which a changer body U is provided with a pair of disc clamp devices.

Each disk clamp device t141 (151) has a pair of clamp arms (16) αη and σ9 that clamp the disk (1) from both the front and back sides, and each of these pair of clamp arms 061 (1η and (1 to The wings are attached to the mouths of a pair of cylindrical clamp bases (20) provided on the carrier body α~.Then, each pair of clamp arms (161(Lη and (181Q!I)
It is configured to be movable relative to each other in the distance direction along the axial direction on the clamp base (2UJ 1211) and rotatable at a predetermined angle around each clamp base (2UJ 1211). In addition, the distance drive of the pair of clamp arms (161 (17) and bet (191) is provided in a cylindrical shape on the outer periphery of both ends of the sword in the axial direction of each clamp base UOJ C1! (16) C7) and Q8J (each pair of electromagnetic devices that directly attract 1G1 and separate them 21 f23+
and (2 滲I25) and its electromagnetic device (232 and +
241 +251 pressure is applied to each pair of clamp arms [61fl force and a crimping spring (not shown) that crimps the bet αgI. Also, each pair of clamps 7-
A pair of motor drive mechanisms (26) provided in the main body (131)
271. And both Lang Base Tsuyoshi 2
11 are engaged with the guide shaft (10) and the feed screw (1) J, respectively, and the disc changer (7) is rotated by the screw feeding action of the feed screw ring driven by the pulse motor (12) in forward and reverse rotation. The entire body is configured to be moved back and forth along the guide shaft u01.

Next, the disc changer (7)
) is shown in FIG. 4. First, at a predetermined disk storage position t of a predetermined disk file +21,
Both rung arms 06 of one disk clamp device
1u7) are spaced apart from each other as shown by the imaginary line.
The disk file (2) is rotated in the fla direction.
are inserted on both sides of a given disc (1) within the disc. Next, both rung arms u6+ (17) are pressed together to clamp the specified disk (1) from both the front and back sides, and then the two rung arms αua force is rotated in the direction of the arrow as shown by the solid line. Then, the held disc (the moon) is extracted from the disc file (2).

It is taken out to the transport position shown in the center position in the figure.

At this time, both rung arms Q8) (I'll of the other disk clamping device 151 are in the position shown by the solid line, and both rung arms (181 ( 191. After the insertion, both Langdeme barrels (L!11) are also pressed together, and the disk (11's other end IIIt+v) is held from both the front and back sides.

And like this, each pair of clamp arms (16) C7
) and (I81α3), the disc (11) is stabilized from both sides of the front and back sides of the disc (71), and the entire disc changer (71) is fed by the feed screw (111), and the disc (1) Disc player (3
) Transported at Sato. Then, when the disc (1) is transported by a predetermined disc player (3), the two grang arms (161H) of one disc frang device A40 are separated from each other, and then the two clamp arms of the other disc clamp device (151) are separated from each other. The arm (1 keg) is rotated in the direction of arrow C as shown by the imaginary line, and the rice disc (1) is transported and mounted on the disc rotating table (4) of the disc player (3).

In addition, the disk mounting operation at this time is disk 7'L/-
This is done in conjunction with the disk fixing device (6) provided on the rack (3), and after the disk txt is accurately mounted on the disk rotating table (4) in the same axial state, both clamp arms (181 (191 are separated from each other, rotated in the direction of arrow d, and returned to the original position shown by the solid line.

Next, the control situation of the disk changer (7) by the local controller VC will be explained with reference to FIG.

First, when the power is turned on, the disk changer (7) will switch to the second
The sail is automatically returned to the reset position shown by the imaginary line in the figure, and the photointerrupter sail, which has been ffffed to the reset position, detects this.

Reset the pulse signal up/down counter C+21V. Next, from the computer described later, the disk + IJ refile code (the number of the disk file in which the specified disk is stored) and the slot number (the storage position number in the disk file in which the specified disk is stored) are respectively sent. It is input to the register (316ψ. Then, the output from the register □□□ and the disk file (2)
The constant value specified by the pitch between is multiplied by the multiplier c151, and the output from the multiplier U group and the output from the register diagram are added by the multiplier C151. . Then, the slot target value at which the disk changer (7) should be moved to the designated slot number position is input from the adder (a)) to the multiplexer 67). In addition, the multiplexer 66 also inputs the player number input from the computer to the register + memory link (based on the specified disc player number), the target value of the player to be moved to the specified disc player (3), and the disc changer (7). However, the slot/player selection signal input from the computer still determines the slot)
IIIt+, the slot target value is input from the multiplexer C37) to the open comparator. Then, the slot target value and the current position signal of the disc changer (7) inputted from the up/down counter ci21 are compared in the seventh comparator 4.

A signal for making the pulse motor (one force) rotate forward or backward is manually input to the motor drive circuit (421) through an AND gate (41 or (4υ)) which takes an AND with the motor 0N10FF signal from between the comparators. Result feed screw (11
The screw feeding action of the disc changer (7) is performed by 1, and the disc changer (7) starts moving toward the designated slot number position.Meanwhile, as the disc changer (7) moves, the ant game) (4
A down or up signal is input to the up/down counter C321 from 1J or (4υ), and the up/down counter (321) is down or up once.

Then, at the moment when the disc changer (7) reaches the designated slot number position shown by the solid line in FIG. is output to the computer, and the pulse motor (121) is stopped.Then, as described above, the specified disk (IJ) is taken out from the disk file (2) to the disk changer (7). later.

The output from the computer switches the multiplexer (3 forces) to the player side. As a result, the player target value is manually input from the multiplexer 67 to the comparator, and the pulse motor 11 rotates forward or backward in the same manner as described above. Driven in reverse rotation, as mentioned above, the disk file +2
The disc + IJ taken out from 1 is transferred to the designated disc player (31”li) using the disc changer (7).
Q is sent to the disc player (3).

In order to realize this local controller, the disk pitch within each disk file (2) and the pitch between disk files (2) must be an integral multiple of the step width of the pulse motor (1). .

The number of disks stored in the four disk files (2) must be the same, and the disk file (2)
Necessary conditions include that the pitches between the discs are all the same, and that the positions of the three disc players (3) are indicated relative to the disc pitches.

Next, with reference to FIG. 6, the system control situation by the computer (45) which controls the entire optical disc automatic playback system will be explained. Note that the computer (451) constitutes the control device referred to in the present invention.

First, several to ten-odd songs are recorded on each disk (11), and data information such as the number of the valley, the cue position of the valley, and the total performance time are recorded at the initial position.

Next, the data information entered using the input key (47) of the terminal (46) (numbers, codes, etc. corresponding to all songs recorded on all discs stored in the four disc files) is The computer (45) converts it into a pointer to the directory (49) of the auxiliary storage device (48), forming a so-called address book of all the songs recorded on all the discs (2). Note that (50) is the terminal (46
) display mechanism. Furthermore, in the directory (49),
The storage position number in the valley disk file (2) of the disk (1) in which seven songs are stored for each song on the disk (1).File number (the number of the disk file in which the disk is stored); The slot number (the storage position number in the disc file where the disc is stored) and track number (the number indicating which track is recorded on the disc) are written along with other information, and you can use the pointer to By referring to the directory +49)Y, the file number CF#n) containing the specified disk,
It is configured such that the slot number (S#n) Y% can be determined.

To start the automatic performance of the next song (1), press the input key (47) of the terminal (46) to press the computer f +4.
Enter the Fin/I/Honor number (Fin) and slot number (S#n) to be specified in 51. Then the computer (45
) hangs the vacant disk player (3) 'k ff with no disk (1) installed, and issues a loading command to the local controller by specifying the file number, slot number, and player number as described above. The local controller then changes the disk changer (7
1 as described above, and the disk changer (7) selects the specified disk stored in the slot number position specified by the specified file number from among the four disk files (2). +11'
Take out the YG, defrost it to the specified disc player (3), load it, and load the disc from the local controller to the computer (451) (disc loading operation).
will be notified that it has been completed.

Next, the computer (45) that has been informed that the disc has been loaded will first send the track number [T#i] to the disc player (3) in which the disc (11) has been loaded.
Issue cue and play commands.

As a result of the above, automatic performance of disc (1) is started.

When the specified song recorded at the specified track number position finishes playing, the disc player (
3), a message indicating the end of the performance is sent to the computer (451).
Sent to, this? The receiving computer (451) issues a local controller hair unloading command, and the disc changer (7) reads the disc (1) after the play is completed.
) Remove it from the Kaoru disk player (3) and store it in the original specified file number and slot number position, and then connect it from the local controller to the computer (451).
The status when the disk unloading operation (disc unloading operation) has been completed is reported.

By the way, the above-mentioned loading and unloading operations are completed in a few seconds, and the playing time of the song is usually 3.
Since it is about 1 minute, there is sufficient margin for this. Furthermore, high-speed random access is possible while freely handling a plurality (for example, three) of disc players (3) using one disc changer (7). Therefore, while one disc player (3) is playing the disc (11'f), the disc changer (7) takes out the discs (1) one after another from the disc file (2) and creates an empty disc. Insert the disc (I) into the player (3).
I'a - The next disk to be loaded (11) is multiplexed, and while each disk player (3) is playing the disk (1) on any of the disk players (3), the specified By cueing the beginning of a song, putting it on standby, and immediately starting playing the cued song at the same time as the previously played song finishes, you can play the songs you want to play from among a large number of discs one by one. (Can be played automatically one after another.

'f 7. - It is possible to send the audio output from each disc player (3) to a large number of broadcast stations using the matrix switch t511, and the audio output from each disc player (3) can be sent to multiple broadcast stations. It is also possible to play multiple discs (11') simultaneously and send them to many broadcasting stations, making it ideal as an automatic disc playing system for broadcasting stations. % It is also possible to use one unit as a standby player for karaoke.

Although one embodiment of the present invention has been described above, each building can be modified and applied based on the technical idea of the present invention.

gB For example, the arrangement of the disc file (2), disc changer (7), and disc player (3) can be arranged as shown in Fig. 7 or 8 in addition to the arrangement shown in Fig. 2. There may also be a disk file (2)
It does not matter whether the disk array is horizontal or vertical.

! disc player (3) or disc changer (
7) It is possible to modify and apply corn plants.

Effects of the Invention As described above, according to the present invention, high-speed random access is possible, and the songs to be played are selected and retrieved from a large number of discs, and the songs are automatically played one after another at the same time. It is very convenient to be able to do so.

[Brief explanation of the drawing]

The drawings show an embodiment of an optical disc automatic performance system to which the present invention is applied, in which Fig. 1 is a perspective view of the entire system, Fig. 2 is a plan view of the same, and Fig. 3 is a disc changer. FIG. 4 is a front view illustrating the disk exchange operation by the disk changer.
FIG. 5 is a block diagram explaining the local controller,
FIG. 86 is a block diagram for explaining the computer system system, and FIGS. 7 and 8 are block diagrams showing modifications of the arrangement. Also, in the symbols used in the drawings, (1)...Disk (2)...Disk file (3)
・・・・・・Disc player (7)・・・・・・
・・・・・・Disc changer m-α5ノ・・・・・・
・・Disc Clap 7 Device (451・・・・・・・・・
・Computer (49)・・・・・・・・・Directory.

Claims (1)

[Claims] A disc file in which a large number of discs are stored adjacently in parallel at predetermined intervals, a plurality of disc players, and a predetermined disc selected from the large number of discs stored in the disc file. A disc changer selectively takes out and transports the transported disc to a disc player in which a disc is not installed among the plurality of disc players, and selectively takes out the disc from the disc file by the upper disc changer. . An automatic disc performance system comprising a 1fflJ # device that selectively loads the removed disc into the disc player and controls playback of the disc by the disc player into which the disc is loaded.