JPH04205777A - Disk player with auto-change device - Google Patents

Abstract

PURPOSE:To confirm disks housed in a magazine in a short time by storing music information in reproducing disks housed in the magazine in turn for a prescribed time respectively and reproducing them in sounds. CONSTITUTION:Mounting of the magazine 1 is detected by a microcomputer 9 to clear a RAM. A disk number memory is set as one, and a supporting part 3 is moved, and a disk 2 is transferred to a table 5 by a transfer mechanism 4. Starting time of music recorded on the disk 2 is stored in the RAM by a pickup 6. This information is used for a direct music selection of a desired music number in a desired disk. The pickup 6 is moved to the music head of the 1st music on the disk 2. Simultaneously with reproducing, an audio signal is written in a semiconductor memory 10 for 10sec, and the reproduction is stopped, and then the disk is returned to the magazine 1. Subsequently, the same operation is carried out. When a switch 14 is pressed, a switch 11 is changed over to a contact (b) by the microcomputer 9, the memory 10 is brought under the read-out state. The read-out is performed for 10sec, and then the switch is changed over to a contact (a). By this constitution, the disks in the magazine 1 can be confirmed in a short time.

Description

[Detailed Description of the Invention] [Summary] The present invention relates to a disc player with an autochanger device, in which a storage means is provided in the disc player, each disc stored in a magazine is sequentially played for a predetermined time, and the played songs are recorded. Information is stored in the storage means. As a result, even if you forget what kind of disc was stored in the magazine, there is no need to sequentially play the discs stored in the magazine one by one via the autochanger device, and the song information stored in the storage means can be played back as a voice. By playing the discs as , you can check the discs stored in the magazine in a short time.

[Industrial application field]

The present invention relates to a disc player with an autochanger device that selectively plays a desired disc from among a large number of discs stored in a magazine.

[Conventional technology]

In recent years, there are 10 compact discs (CDs) in the magazine.
Disc players equipped with autochanger devices that store approximately 10 discs and sequentially select and play desired discs are rapidly becoming popular.

According to this, it is possible to directly play a desired song on a desired disc, and once a large number of CDs are stored in a magazine, CDs can be replaced automatically and safely in the CD player. This makes it very convenient compared to a normal CD player, where you have to manually change CDs one by one.

[Problem to be solved by the invention]

However, in a disc player with an autochanger device, since the CDs stored in the magazine are replaced less frequently, it is possible to forget what kind of CDs are stored in the magazine. It is necessary to check the type of CD by sequentially playing back one CD at a time, which causes problems in that the operation is complicated and it takes time to exchange CDs between the magazine and the CD player.

The present invention solves these conventional problems, and includes:
To provide a disc player with an autochanger device, which eliminates the need to replace and reproduce discs stored in a magazine one by one and allows the contents of discs to be checked in a short time.

[Failure to solve the problem]

In order to solve the above problems, the present invention provides a disc player with an autochanger device that selects a desired disc from among a large number of discs stored in a magazine, transfers it into the disc player, and plays the disc. The disc player is characterized in that a storage means is provided in the disc player, each disc stored in the magazine is sequentially played for a predetermined period of time, and the played song information is stored in the storage means.

[Effect]

According to the present invention, each disc stored in the magazine is sequentially played back for a predetermined period of time, and the played song information is stored in the storage means, so that it is possible to forget what kind of disc was stored in the magazine. Even if the disc stored in the magazine is played back as audio from the song information stored in the storage means, it is possible to check the disc stored in the magazine in a short time. There is no need to play the files sequentially one by one.

〔Example〕

Hereinafter, the present invention will be explained in detail using the drawings.

FIG. 1 is a diagram showing a disc player with an autochanger device according to the present invention.

Reference numeral 1 denotes a magazine, which is configured to be able to store approximately 10 CDs 2 in an array. Reference numeral 3 denotes a support portion for the magazine 1, which is driven up and down together with the magazine 1 by a motor M1.

Reference numeral 4 denotes a CD 2 transfer mechanism, which reciprocates the CD 2 stored in the magazine 1 onto the turntable 5 in the player main body, or vice versa. The disc motor M2 drives the CD 2 loaded on the turntable 5 at a predetermined rotational speed (constant linear velocity). Various information such as audio information and time information recorded on the CDI is optically read by a pickup 6 driven along the radial direction of the CD 2 by a pickup drive motor M3. The signal read by the pickup 6 is output to the signal conversion circuit 8 via the preamplifier 7. The signal conversion circuit 8 performs processing such as error correction and EFM demodulation on the signal from the pickup 6 to convert it into a digital audio signal, and also extracts a subcode containing time information recorded in conjunction with the digital audio signal. Output to microcomputer 9. The time information recorded on the CD2 includes time information that represents the total time (absolute time) from the first information recorded on the CD2, and time that represents the elapsed time from the starting position of each song along with the song number. There is information. The digital audio signal output from the signal conversion circuit 8 is led out to the semiconductor memory 10, and is also outputted via the switch 11 by the digital/analog conversion circuit 12 as an analog audio signal to a subsequent analog system circuit (not shown).

The microcomputer 9 inputs time information from the signal conversion circuit 8,
The pickup 6 is controlled by controlling the pickup drive motor M2.
(music selection control), outputs the playback position of the CD 2 by the pickup 6 as time information to the display 13, and selects the desired CD 2 based on information from a manual operation device (not shown). control of the rotation of the motor Ml for the purpose of operation, switching control of writing/reading of audio signals by the semiconductor memory 10, switching control of the switch 11, etc.

Note that the player body is equipped with various circuits including servo systems such as tracking servo and focus servo, and various controls are performed in connection with these circuits, but the explanation of these will be omitted here. .

Hereinafter, the operation of the microcomputer 9 related to the present invention will be explained using the flowcharts of FIGS. 2 and 3.

When the microcomputer 9 detects that the magazine 1 is placed on the support section 3 using a switch (not shown) provided on the support section 3, the microcomputer 9 activates the semiconductor memory 10. The contents of the internal RAM (random access memory) for storing lead-in information recorded on the CD 2 are cleared (step SJ). Then, increment the memory for storing the disk number by 1.
Then, the motor M1 is driven to move the support part 3, and when the disc 2 is stored in the first storage position in the magazine l, the transfer mechanism 4 is driven to move the disc 2 onto the turntable 5. (Step S2.S3.S4)
. Next, the disk motor M2 is driven to rotate the disk 2, and the pickup drive motor M3 is driven to move the pickup 6 to the innermost circumference of the disk 2. Lead-in information, that is, each start time (absolute time) recorded on the disc 2 is stored in the RAM in the microcomputer 9 (step S5). The lead-in information stored in this RAM is used when directly selecting information on a desired song number on a desired disc 2.

Then, the pickup 6 is moved to the position corresponding to the beginning of the first track on the disc 2 (steps S6 and S7), and the first track is played back (step S8).
is set to a writing state (step S9), and the audio signal of the first song is written into the semiconductor memory 10 for 10 seconds (step 510).

Thereafter, the write state of the semiconductor memory IO is released (step 5ll) to stop playback (step 512), and the disk 2 is stored in the first storage position of the magazine 1 (step 512).
Step 513).

This process is then performed on the second disk, the third disk, and all the disks 2 stored in the magazine 1 (step 514).

As a result, when a desired disc 2 stored in the magazine is to be played back, the microcomputer 9 performs the same control as in the past based on information from a manual operating device (not shown). In this case,
A common contact C of the switch 11 is connected to an individual contact a.

In addition, if the operator forgets what kind of disk is stored in the magazine l, by pressing the switch 14, the microcomputer 9 switches the switch 11 to the individual contact side (step S21), and Semiconductor memory 0 is set to read state (step 522), and audio signals of the first track (each 10 seconds) of each disk 2 stored in semiconductor memory 0 are read out until one sequence is read (step 522).
Step 523). The audio signals read from the semiconductor memory 10 are sequentially reproduced from a speaker (not shown) via a digital-to-analog converter 12. After that, the read state of the semiconductor memory 10 is released (step 524).
At the same time, the switch 11 is switched to the individual contact a side (step 525).

As a result, even if you forget what kind of disc is stored in the magazine 1, there is no need to replace the disc one by one each time you play and check the contents.
The disks stored in the magazine 1 can be confirmed in a short time.

In this embodiment, the process shown in FIG. 2 is performed when the magazine l is placed on the support part 3, or it may be performed by turning on a manual operation switch. Other storage means may be used instead.

〔Effect of the invention〕

As described above, according to the present invention, even if the user forgets what kind of disk is stored in the magazine, the contents of the disk can be confirmed in a short time.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a disc player with an autochanger device according to the present invention, FIG. 2 is a flowchart showing disc information storage processing, and FIG. 3 is a flowchart showing semiconductor memory playback processing. In the figure, 1 is a magazine, 2 is a disk, 3 is a support part, 4 is a transfer mechanism, 5 is a turntable, 6 is a pickup, 8 is a signal conversion circuit, 9 is a microcomputer, 1
0 is a semiconductor memory. Applicant: Minoru Aoyagi, Patent Attorney, Fujitsu Ten Ltd. Figure 70->Year 2 showing the storage process of disk information Figure 3 7o-Chart showing the reproducing process of semiconductor memory

Claims (1)

[Claims] 1. In a disc player with an autochanger device that selects a desired disc from among a large number of discs stored in a magazine, transfers it to the disc player, and plays the disc, a storage means is provided in the disc player, A disc player with an autochanger device, characterized in that each disc stored in the magazine is sequentially played for a predetermined period of time, and the played song information is stored in the storage means.