JP3023194B2 - Recording medium playback device with autochanger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium reproducing apparatus with an autochanger for selectively reproducing a desired recording medium from a large number of recording media stored in a magazine.

[0002]

2. Description of the Related Art In recent years, a disk player equipped with an autochanger device for storing about ten compact disks (CDs) in a magazine and sequentially selecting and reproducing a desired disk has been rapidly spread. According to this, a desired song in a desired disc can be directly reproduced, and once a large number of CDs are stored in the magazine, the conversion of the CDs to the CD player is performed automatically and safely. This is very convenient compared to a normal CD player in which CDs are exchanged one by one by hand.

[0003]

However, in a disk player with an autochanger device, the frequency of replacement of CDs stored in the magazine is reduced, so that the CDs are stored in the magazine in the same state for a long time. Will listen to the same song in the same order. In order to avoid this, the order of the CDs to be reproduced may be arbitrarily designated by operating the buttons. However, the operation of designating the order of the CDs for each reproduction is complicated.

The present invention has been made to solve the above-mentioned conventional problem, and it is possible to automatically change the reproduction order of the discs in a magazine automatically without sequentially specifying the order of the discs to be reproduced. A disc player with an autochanger device that can be used.

[0005]

SUMMARY OF THE INVENTION The present invention provides an automatic changer for selecting a desired recording medium from a large number of recording media stored in a magazine, transferring the selected recording medium to a recording medium reproducing apparatus, and reproducing the recording medium. In a recording medium reproducing apparatus, a recording medium reproducing apparatus with an autochanger that reproduces a recording medium in the order in which the recording medium is stored in the magazine, wherein a spare storage section for retreating a recording medium provided separately from the magazine, Random storage means for temporarily storing one of the recording media stored in the magazine in the spare storage section, creating an empty storage section in the magazine, and randomly replacing the recording medium in the magazine, and the random replacement section. And an operation switch for operating.

[0006]

According to the present invention, a spare storage section for retreating a recording medium is provided, and the recording medium stored in the magazine is temporarily stored in the spare storage section to form an empty storage section in the magazine, and the recording medium in the magazine is provided. Can be changed at random, so that the playback order of the recording media in the magazine can be automatically changed at random without sequentially specifying the order of the recording media to be played, and the recording media can be sequentially changed. At the time of playback, it is only necessary to play in the order stored in the magazine,
It does not increase the time for replacing the recording medium.

[0007]

[0008]

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a disc player with an autochanger device showing one embodiment of the present invention.

Reference numeral 1 denotes a magazine which is capable of storing about ten CDs 2 in a line in each disk storage part. 1
Reference numeral 0 denotes a spare storage unit for disc retraction provided separately from the magazine 1, and reference numeral 3 denotes a support unit for the magazine 1 and the preliminary storage unit 10, which is driven up and down by the motor M1 together with the magazine 1 and the preliminary storage unit 10. . Note that the magazine 1 is detachably attached to the support unit 3.

Reference numeral 4 denotes a transport mechanism for the CD2,
The CD2 stored in the player is reciprocated on the turntable 5 in the player body or vice versa. The disk motor M2 drives the CD2 loaded on the turntable 5 at a predetermined rotation speed (constant linear velocity).

Various information such as audio information and time information recorded on the CD 2 is optically read by a pickup 6 driven in the radial direction of the CD 2 by a pickup drive motor M3. The signal read by the pickup 6 is output to a signal conversion circuit 8 via a 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 the signal into a digital audio signal, and extracts a subcode including time information recorded together with the digital audio signal. And outputs it to a microcomputer (microcomputer) 9.

The digital audio signal output from the signal conversion circuit 8 is output by the digital / analog conversion circuit 11 as an analog audio signal to a downstream analog circuit (not shown).

As will be described later, the microcomputer 9 has a function as a random exchange means for randomly exchanging CDs in the magazine 1, and has a function of generating random numbers in connection therewith. The time information from the signal conversion circuit 8 is input to control the pickup drive motor M2 to control the position of the pickup 6 (tune selection control).
Or output to

Further, it also controls the rotation of the motor M1 for selecting a desired CD2 based on information from a manual operation device (not shown).

The player main body is provided with various circuits including a servo system such as a tracking servo and a focus servo, and various controls are performed in connection with these circuits. Is omitted.

Hereinafter, the processing of the microcomputer 9 related to the present invention will be described with reference to the flowchart of FIG. 2 and the operation explanatory diagram of FIG. When the random reproduction switch 13 is operated, the microcomputer 9 sequentially generates random numbers in accordance with the number of disk storage units in the magazine 1 and stores them in the internal RAM in the order of generation (step S1). At this time, if the same number has already been generated, a random number is generated again so that a plurality of the same numbers are not stored.

Then, the motor M1 is driven to move the support unit 3, and the C number of an arbitrary number stored in the internal RAM is changed.
D, for example, the CD 2 stored in the storage section of the disk with the number last stored in the RAM is driven out of the magazine 1 by driving the transfer mechanism 4 (step S2). Next, the motor M1 is driven to move the support unit 3, and the transfer mechanism 4 is driven in the reverse direction to temporarily store the CD 2 in the spare storage unit 10 (step S3).

Thereafter, the motor M1 and the transfer mechanism 4 are sequentially driven to replace the empty storage section of the magazine 1, that is, the disk storage section of the number in which the CD2 currently stored in the spare storage section 10 was originally stored. C of the storage to be done
Take out D and replace it with the empty storage section (step S
4, S5). Further, the number of the disk storage unit whose replacement has been completed in step S6 is deleted from the internal RAM, and the disk replacement process for the empty storage unit is sequentially performed according to the number (random number) stored in the internal RAM (step S7).

If there is no empty storage portion in the magazine 1 before the process of exchanging disks for all the disk storage portions in the magazine 1 is completed in step S8,
That is, the CD to be stored in the empty storage unit is the CD stored in the auxiliary storage unit 10, and the CD is stored in the auxiliary storage unit 10.
If it is determined that the CD has been stored, the process proceeds to step S2, the CD is taken out from the disk storage unit of an arbitrary number for which the replacement has not been completed, the CD is stored once in the spare storage unit 10, and the same as described above. In step S2, a process of exchanging disks for empty storage units is performed.
6).

When the random replacement process for all the disks is completed, the process proceeds to step S9, and the reproduction is sequentially started from the CD2 stored in the first (lowest) disk storage portion in the magazine 1. It should be noted that the replacement process is not naturally performed on the CD whose storage unit number of the replacement destination matches the original storage unit number. For example, a random number is generated and stored in the internal RAM. The number of the storage section may be deleted from the internal RAM.

As a result, as shown in FIG.
Assuming that the random number generation order is 4, 3, 1 and 2 in the magazine 1 capable of storing four discs, the CD 2 of the second disc storage unit is first replaced with the spare storage unit 10 as shown in FIG.
The third CD2 is replaced in the second disk storage part which is temporarily stored in the second storage part and then becomes the empty storage part, and then the first CD2 is replaced in the third storage part (empty storage part). . Further, the fourth CD2 is exchanged for the first storage section (empty storage section), and finally, FIG.
As shown in (c), the number of CDs 2 stored in the spare storage unit 10 is four.
The random exchange process of the discs stored in the second storage section (empty storage section) is completed, and the reproduction of CD2 is sequentially performed from the CD2 stored in the first disk storage section.

Therefore, according to the present embodiment, the CDs 2 stored in the magazine 1 can be automatically reproduced in a random order, and when the CDs are sequentially reproduced, the first and second CDs are sequentially stored in the disk storage section. , The moving range of the support portion 3 per one time for exchanging the disk is small, and the time for exchanging the disk is not increased.

[0025]

[0026]

Further, the transfer mechanism may be of a type which is driven up and down by itself, takes out the CD placed on the tray in the magazine together with the tray, and places it on the turntable 5.

[0028]

As described above, according to the present invention, the order of disk reproduction in a magazine can be automatically changed at random without sequentially specifying the order of disks to be reproduced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of the present invention.

FIG. 2 is a flowchart illustrating processing of a microcomputer.

FIG. 3 is an operation explanatory diagram of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magazine 2 Disk 3 Support part 4 Transfer mechanism 5 Turntable 6 Pickup 8 Signal conversion circuit 9 Microcomputer 10 Spare storage part 13 Random reproduction switch

Claims (1)

(57) [Claims] 1. A recording device with an autochanger for selecting a desired recording medium from a large number of recording media stored in a magazine, transferring the selected recording medium to a recording medium reproducing device , and reproducing the recording medium .
A medium reproducing apparatus for reproducing a recording medium in the order stored in the magazine.
Cormorant in with autochanger recording medium reproducing apparatus, temporarily storing a spare storage unit for recording medium retracted provided separately from said magazine, one of the accommodated recording medium to the magazine to the preliminary storage unit, the recording medium with autochanger, characterized in that it comprises a random <br/> replacement means causes interchanged at random recording medium in the magazine to make an empty storage section in the magazine, and an operating switch for operating the random replacement means
Playback device .