JPS63112884A - Auto-changer for disk - Google Patents

Abstract

PURPOSE:To utilize a registered melody selection melody number data without executing a re-registration against a disk which is not exchanged, by executing a reproduction, based on a registered melody selection melody number, only when a disk data read from the disk and a disk data stored in a disk table coincide with each other. CONSTITUTION:A disk data read from a disk 2 and a disk data stored in a disk table 15 are compared, and only when both disk data coincide with each other, the reproduction of the disk 2 is executed, based on a melody selection melody number registered in a melody selection table 16. For instance, when the disk 2 housed in a disk magazine 1 is exchanged with other disk, a melody selection melody number data registered in the melody selection table 16 is not utilized, and when it is not exchanged with other disk 2, the melody selection melody number data registered in the melody selection table 16 is utilized. In such a way, as for the disk which is not exchanged, among the disks in the disk magazine, the melody selection melody number is not registered again, and the reproduction can be executed, based on the melody selection melody number registered already.

Description

[Detailed Description of the Invention] 2 Vane Industrial Application Field The present invention relates to a disc autochanger device that takes out a disc from a disc magazine storing a plurality of discs and plays it. The present invention relates to an autochanger device for discs that performs playback (memory play).

2. Description of the Related Art Conventionally, an autochanger device for discs has been developed in which a song selection number is registered in advance and playback is performed sequentially based on the registered song selection number.

Problems to be Solved by the Invention However, in the above-mentioned conventional disc autochanger device, when a disc magazine is set in a disc player with an autochanger mechanism, it is difficult to sequentially play songs based on pre-registered song selection numbers. However, if the disc magazine is removed from the disc player (ejected) when it is necessary to replace the disc, the registered song selection number data will be lost, and the disc magazine will be removed from the disc player. There was a drawback that the song selection number had to be registered again when re-sensing to Bejiya. In the case of the conventional example above, if all the discs in the disc magazine are replaced, no particular problem will occur, but if only some discs in the disc magazine are replaced, the registered track selection number of the disc that was not replaced Even if you wanted to use the data as is, you had to register the song selection number again.

The present invention eliminates the above-mentioned conventional drawbacks, and provides an autochanger device for discs that can use registered song selection number data without re-registering discs that have not been replaced. .

Means for Solving the Problems In order to achieve the above object, the present invention detects whether or not a disk in a disk magazine has been replaced by checking the disk data read from the disk and the disk data stored in the disk table. The data is compared and determined, and only when the data on both discs match, playback (memory play) is performed based on the registered song selection number.

According to the present invention, for discs in the disc magazine that have not been replaced, playback can be performed based on the already registered song selection number without registering the song selection number again. can.

EXAMPLE An example of the present invention will be described below. In FIG. 1, numeral 1 denotes a disk magazine, and a plurality of compact disks (hereinafter referred to as disks) 2 are stored in the disk magazine 1 (for example, six disks). 3 is a disc player with an autochanger mechanism, and the disc magazine 1 is inserted into a predetermined position of the disc player 3. A disk 2' is taken out from the disk magazine 1 by an autochanger mechanism and set in the disk player 3, and this disk 2 is driven to rotate. Reference numeral 4 denotes an optical pickup for reading various information recorded on the disc 2. Reference numeral 5 denotes an operation section, and this operation section 5 is provided with a disk button 6, a memory 5, a page play button 7, a play button 8, a memory button 9, a numeric keypad 10, and the like. Reference numeral 11 is a display that digitally displays the current performance location, and reference numeral 12 is a display that lights up when the memory play mode is entered. 13 is the central processing unit (OP
14 is a random access memory (RAM), and these R, A, M1
4 includes a disc table 15 and a music selection table 16. The disk table 15 stores disk data (number of recorded songs, total playing time, playing time of the first song) read by the optical big amplifier 4. For example, the number of songs recorded on the first disc is 10 songs, the total playing time is 47 minutes 17 seconds 5 frames, and the playing time of the first song is 2 minutes 18 minutes.
Disk data such as 57 frames per second is stored.

On the other hand, the music selection table (6) stores music selection numbers entered through the numeric keypad 10 and memory button 9 of the operating section 5. For example, the first disc selects tracks 1, 3, 5, and 9, the second disc does not select tracks, and the third disc selects tracks 3, 2, and 1...・Selected song numbers such as ・ etc. are memorized.

Page 6 Next, the operation of the above embodiment will be explained. First, the case where the play button 8 is operated will be explained.

When the play button 8 is operated, a control signal is output from the 0PU 13, the first disc 2 is taken out from the disc magazine 1, and the songs recorded on this first disc are played sequentially starting from the first song. . When the first and last song has finished playing, this first disc is returned to the disc magazine, then the second disc is removed, and the first disc is
The songs are played in order. When the play button 8 is operated in this manner, the discs are ejected in order starting from the first disc, and the songs recorded on each disc are played in order from the first disc.

Next, the operation when the memory play button 7 is operated will be explained. When the memory play button 7 is operated, as shown in FIG. 2, the music selection table 16 is searched, and the disc plate in which the music selection number is registered is detected. In the case of the embodiment shown in FIG. 1, disc stores "1", "3", "4", "5",
6" is detected (Step A). Next, the smallest disc profile among the detected disc cups is detected (step B).

In the case of this embodiment, disc store "1" is detected.

Next, it is determined whether or not the first disk exists in the disk magazine 1 (step C). If the first disc is present, the player takes out the first disc from the disc magazine 1, sets it in the disc player 3, and starts playing (PLAY) (step D). In addition, 1
When it is determined that the th disc does not exist, the disc heights detected by the music selection table search are "1", [3],
Among "4", "5-", and "6", the next smallest disk flatness ("3" in this embodiment) is detected. When the first disc is present and the performance of this disc is started, the disc data (recorded track number, total playing time, playing time of the first track) recorded on the disc is read (step E). Next, it is determined whether the read disk data matches the disk data of the first disk stored in the disk table 15 (step F).
. If the results of this judgment match, the selected song numbers (1) and (3) of disk ``1'' registered in the song selection table 16 are selected.
, (5), and (9) are played in sequence (step G). As a result of comparing the disc data, if the disc data do not match (this occurs when the first disc in the disc magazine is replaced with another disc after the song selection number was registered), the disc in the music selection table 16 Bian "1"
In step H), the next lowest number disc is detected.

In this way, in this embodiment, if the disc stored in the disc magazine 1 is replaced with another disc, the music selection number data registered in the music selection table]6 is not used, and the data is stored in the disc magazine 1. If the stored disc has not been replaced with another disc, the music selection table 1
This uses the song selection number data registered in No. 6.

Next, a case will be described in which memory play is performed by specifying a disc to start playing.

Press the disc button 6, specify the disc level using the numeric keypad 1o, and then press the memory play button 7 to search the music selection table (step A) 9 as shown in Figure 3. After reviewing, specify the disc level. After that, the same operation as the memory play shown in FIG. 2 is performed.

In the above embodiment, three types of data read from the disk (number of recorded songs, total playing time, first song) are used to determine whether the disk in the disk magazine 1 has been replaced with another disk. (playing time) and three types of data stored in the disk table 15 (number of recorded songs, total playing time, playing time of the first song), and it is judged whether they all match or not. However, there are two types of data (
For example, it is possible to judge by comparing the total playing time and the playing time of the first song), or by performing calculations (addition, subtraction, multiplication, division, etc.) on two or three types of data to create one or more types of new data. Create data and match this new data,
It is also possible to determine a mismatch.

In this way, according to the present embodiment, among the plurality of discs in the disc magazine, for discs that have not been replaced, there is no need to re-register the song selection number for the disc that has already been registered. It is possible to play only predetermined songs in sequence using the song selection number. Furthermore, in this embodiment, when the disk data is compared and it is determined that they do not match (that is, when the disk has been replaced with another disk)
In this case, the memory area can be used effectively by erasing the registered song number of the disc and making it possible to register it again at the same location where it was erased. Furthermore, according to this embodiment, since the presence or absence of disc discrimination is determined based on the disc data recorded in advance on the disc, it is possible to discriminate almost all commercially available discs.

In the above embodiment, when the performance of the last song in the memory play (track number 7 on the sixth disc) is completed, the end of the memory play is determined in step J in FIGS. 2 and 3, and the normal play is resumed. Then, the playback of track number 8 on the 6th disc begins (step I).

Effects of the Invention According to the present invention, for discs that have not been replaced among the 11 basic disks in a disc magazine, the already registered song selection number data can be used without re-registering the song selection number. You can perform playback by

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a disc autochanger device according to an embodiment of the present invention, and FIGS. 2 and 3 are flowcharts of the same device. 1... Disc magazine, 2... Disc, 3...
・Disc player with auto changer mechanism, 4...
・Optical pickup, 5...Operation unit, 6...Disc button, 7...Memory play button, 8...Play button, 9...
・Memory button, 10...Numeric keypad, 11...Display, 1
2...Display device, 13...Control circuit, 14...RA
M, 15...disc table, 16...music selection table.

Claims (1)

[Claims] A disc magazine that stores a plurality of discs, a disc player with an autochanger mechanism that takes out discs from the disc magazine and plays them, an input means for inputting a music selection number of a disc, and a music selection that stores the input music selection number. Compare the table, a disk table that stores the disk data recorded on each disk or new disk data based on this disk data, and the disk data read from the disk and the disk data stored in the disk table. A disc autochanger device comprising: a control circuit that controls the disc player with an autochanger mechanism to reproduce the disc based on the music selection number registered in the music selection table only when data on both discs match.