JP2003141805A - Disk changer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten time required to detect a disk loaded after disk changing in a disk changer which can load a large number of disks on a rotary tray. SOLUTION: An opening/closing door 5 comprising an outside door 5a and an inside door 5b is provided at the disk change opening 1a of the disk changer 1. A slit 6 is provided at the middle position of the inside door 5b. An opening/ closing door sensor 14e of the opening/closing door 5 is provided in the vicinity of the opening/closing door 5. A stocker 11a in which a disk A is loaded is transported to the back surface position of the slit 6. The disk A is changed via the slit 6, and the opposite surface of the disk A is played back.

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.

[0002]

2. Description of the Related Art Recently, DVD (Digital Versatile Dis)
A disc changer device that can manage and operate multiple discs such as c) has been realized. This disc changer device is capable of storing a plurality of discs and designating a specific disc from among the stored plurality of discs for reproduction. In this case, there are various storage formats of the disc. For example, devised a rotary tray that holds and stores a disc by standing the disc in accordance with each stocker on a turntable on which a plurality of grooves radially extending in the radial direction (hereinafter referred to as stockers) are formed. Has been done.

The disc changer device having the above-mentioned stocker is designed so that a desired stocker number of the disc is designated by key input and the disc is transferred to the reproducing section. That is, the designated stocker is moved to a predetermined transport position, the desired disc in the stocker is transported to the reproducing unit, and reproduction is started. Further, in the case of a disc having information stored on both sides, when reproduction of one side of the disc is completed, the disc is stored in the stocker and conveyed to the disc exchange port. Then, after taking out the disc and turning it upside down, the disc is inserted again and the opposite side is reproduced. A conventional processing method for reproducing such a disc will be described with reference to FIG.

As shown in FIG. 7, when a desired disc is designated, the disc is detected by a detection process for detecting the position of the disc, and the disc is selected from all the discs.
The stocker containing the disc is conveyed to a position near the reproducing unit. Then, the disc is sent from the stocker to the reproducing unit, and the disc is reproduced (S201). When the reproduction of one side of the disc is completed, the disc is stored in the stocker again (S202), and the rotary tray moves the stocker until it comes to the disc exchange port (S203). Then, the door of the disc exchange port is opened (S204), and the disc is taken out. Then, after reversing the inside and outside, it is stored in the stocker again (S20
5) The door is closed (S206). Then, the stocker number accommodating the desired disk is specified by the detection process for detecting the position of the disk again (S207), and then the stocker is guided to the reproducing section to reproduce the opposite surface of the disk. (S208).

[0005]

However, the above-mentioned disc changer device has the following problems. That is, in the conventional disc changer device, once the disc exchange port is opened, a plurality of discs may be taken out or exchanged at one time, and thus the disc loading information stored until then is automatically recorded. All cleared. Therefore, thereafter, when the disc exchange port is closed, the detection process of detecting the presence or absence of all the discs on the rotary tray is performed each time.

Therefore, not only when the front and back of the discs are exchanged, but also when another disc is inserted into the same stocker from which the disc has been taken out for reproduction, whether or not all the loaded discs are present after the disc exchange port is closed. Since the detection was performed, the waiting time was long and smooth and comfortable operation could not be performed.

SUMMARY OF THE INVENTION An object of the present invention is to reduce the time required for detecting a loaded disc after disc replacement in a disc changer device capable of loading a large number of discs on a rotary tray. Another problem is to make it possible to easily replace a disk instructed to be turned upside down so that no time is wasted in detecting the disk.

[0008]

In order to solve the above-mentioned problems, the invention according to claim 1 stores a plurality of recording media on which information is recorded, and also a plurality of storage portions that are movable in a predetermined direction. A door section that opens and closes when the recording medium in the storage section is replaced, a door detection section that detects the open / closed state of the door section, and a presence / absence detection section that detects the presence or absence of a recording medium for each storage section, In a disc changer device including a storage unit that stores loading information based on the detection result of the presence / absence detection unit, the door unit is disposed on the outer side of the first door, and is disposed on the inner side of the first door. A second door having a slit having a width of one sheet and an input unit for inputting an opening / closing instruction of the door unit are provided, and one of the door units is detected as a closed state by the door detection unit. And holds the loading information stored in the storage unit. Characterized by comprising a control unit.

According to a second aspect of the present invention, in the disc changer device according to the first aspect, the storage portion is rotated to a position on the back surface of the slit while the second door is closed, and It is characterized in that it is provided with a replacement means capable of replacing the recording medium from the slit at the position.

According to a third aspect of the present invention, in the disk changer device according to the second aspect, the loading information of the recording medium reinserted into the storage section by the automatic replacement means is the loading information of the storage section. It is characterized in that it is provided with a re-detection means for detecting the base.

According to a fourth aspect of the present invention, there is provided the disc changer device according to the second or third aspect, further comprising a recording medium ejecting means for automatically ejecting the recording medium which is determined to be turned upside down depending on a reproducing state. It is characterized by

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A disc changer device 1 according to an embodiment of the present invention will now be described with reference to FIGS.
Will be described in detail. Disc changer device 1
Is capable of storing 200 discs (recording media) A, but the number of discs that can be stored is 20.
The number is not limited to 0, and 100, 150, etc. can be freely selected.

FIG. 1 is a view showing a front surface portion of a disc changer device 1 according to this embodiment. As shown in FIG. 1, on the front surface of the disc changer device 1, various operation keys such as a disc exchange opening 1a, a reproduction key 1b, a stop key 1c, an exchange opening / closing key 1d, a rotary tray operation dial 1e, and a display portion 1f. Etc. are arranged. Further, an inversion key (input section) 1g, which is a feature of this embodiment, is provided.

FIG. 2 is a top view showing a schematic structure of the disk housing portion 10 provided in the disk changer device 1. As shown in FIG. 2, the disc storage unit 10 includes a rotary tray 11, a rotary tray control motor 12, a disc arm 13, a support plate 14, and first to third sensors 14.
a to 14c, disk presence / absence detection sensor (presence / absence detection unit, re-detection means) 14d, open / close door detection sensor (door detection unit) 14
e and the disk loading / unloading mechanism 15 and the like are arranged on the upper portion of the substrate 16, and the lines shown by reference numerals 1 to 5 are connected to the microcomputer 100 shown in FIG.

The rotary tray 11 is provided with a large number of stockers (storage portions) 11a extending from the center thereof in the radial direction, and holds and stores the disk A by standing the disk A on the stocker 11a. ,
It is attached to the central portion of the substrate 16. As shown in FIG. 2, the rotary tray 11 includes a rotary tray control motor 12
Rotate by the power of.

The rotary tray control motor 12 drives the rotary tray 11 in accordance with a control signal output from the rotary tray control motor driver 104 via a line shown in the figure, and the rotary tray 11 is accurately rotated. Let it be done.

The disk arm 13 is connected to the disk arm control motor driver 10 through a line shown in the figure.
It operates in accordance with the control signal output from 5. That is, one predetermined disc A is pulled out from the stocker 11a of the rotary tray 11 according to the control signal, and the disc A is set in the reproducing device (not shown), and after reproduction,
It is stored again in the stocker 11a of the rotary tray 11.

The disk loading / unloading mechanism 15 operates in response to a control signal output from the disk removal control motor driver (replacement means, recording medium ejection means) 106 via a line shown in the figure. That is, the predetermined disk A accommodated in the stocker 11a is automatically pushed out from the slit 6 provided in the center of the inner door 5b of the opening / closing door 5 described later according to the control signal. When the disc A is inserted through the slit 6 of the inner door 5b, it is stored in the stocker 11a of the rotary tray 11 again.

Next, the first sensor 14a to the third sensor 14
c, the disk presence / absence detection sensor 14d, and the opening / closing door detection sensor 14e will be described. The sensor group is arranged on the substrate 16 near the disc exchange port 1a. Furthermore, the first sensor 14a to the third sensor 14c, the disk presence / absence detection sensor 14d, and the open / close door detection sensor 14
e is output to the microcomputer 100 via the line indicated by.

The first and second sensors 14a and 14b are the substrate 1
6 and is installed under the rotary tray 11. These detect the number of the stocker 11a of the disk A on the rotary tray 11 and also detect the rotation direction of the rotary tray 11. The third sensor 14c is disposed on the substrate, and the rotary tray 11
Detects the rotational position of.

The disk presence / absence detection sensor 14d is provided on the support plate 14 and is installed on the rotary tray 11, and each stocker 11a on the rotary tray 11 is provided.
The presence or absence of the disk A is detected.

The open / close door detection sensor 14e is provided on the substrate and is provided in the vicinity of the disc exchange opening 1a.
The open / closed state of the open / close door 5 is detected.

Next, the positions of the rotary tray 11 and the disks A stored therein are determined by the sensors 14a.
The discrimination method for discriminating on the basis of the signals output by 14d will be described in detail with reference to FIGS. 3 (a) and 3 (b).

FIG. 3A is a timing chart of the pulse signals PH1 to PH3 output from the sensors 14a to 14c, and FIG. 3B is a pulse signal PH1 output from the first sensor 14a and the second sensor 14b. , PH2 and a disk presence / absence detection signal output from the disk presence / absence detection sensor 14d.

PH1 is a pulse signal output from the first sensor 14a, and PH2 is a pulse signal output from the second sensor 14b with a delay of 1/4 cycle from PH1.
Both pulse signals PH1 and PH2 are transferred to the rotary tray 11
Is output according to the rotation operation of the
It is a bit signal having only two levels of "h" and "Low." PH3 is a gate signal output from the third sensor 14c to the microcomputer 100.

Reference numerals C1 to C8 in the figure indicate count timings at which the microcomputer 100 counts the disk storage location (stocker 11a formed in advance on the rotary tray 11) in units of one sheet. This count timing is generated when the pulse signals PH1 and PH2 are both "Low".

The gate signal PH3 is supplied to the rotary tray 1
1 has a unique gate length, for example,
The "Low" section of PH3 shown in FIG. 3A corresponds to a section having a gate length of five stockers 11a formed on the rotary tray 11. That is, the rotary tray 11 is provided with a plurality of sections in advance, and the number of stockers 11a formed in each section is different from each other.

Therefore, the rotational position of the rotary tray 11 can be detected by counting the number of count timings (number of slots) included in the "Low" section of the gate signal PH3.

The phases of the pulse signals PH1 and PH2 are deviated from each other by ¼ cycle, and if the rotation direction of the rotary tray 101 is reversed, this phase is also reversed and the signals of PH1 and PH2 in FIG. Replace. That is, the rotation direction of the rotary tray 11 can be detected from the phases of the pulse signals PH1 and PH2.

As shown in FIG. 3 (b), the disk presence / absence detection sensor 14d uses a "High" signal as a standard signal for normal output. When the count timing is generated by the rotation operation of the rotary tray 11, the stocker 11a on the rotary tray 11 corresponding to this count timing is generated.
If the disk A is stored in the disk, the disk presence / absence detection sensor 14d continues to output the standard signal, and the microcomputer 100 stores this information in the storage section 100a.

On the other hand, when the count timing is generated by the rotation operation of the rotary tray 11, if the disk A is not stored in the stocker 11a on the rotary tray 11 corresponding to the count timing,
The disk presence / absence detection sensor 14d outputs one pulse of "Low" signal, and the microcomputer 100 stores this information in the storage unit 100a.

4 (a) to 4 (c) are views showing the opening / closing door 5 for closing the disc exchange port 1a. As shown in FIG. 4, the front surface of the disc changer device 1 is provided with an opening / closing door 5 having an arc-shaped cross section that closes the disc exchange port 1a. The opening / closing door 5 has a double door structure, and is an outer door (first door) 5a formed outside the disk exchange opening 1a.
And an inner door (second door) 5b formed inside. Further, a slit 6 for ejecting and inserting the disc A is provided at the center of the inner door 5b. The opening / closing door 5 is rotatively moved along the front surface of the disc changer device 1, and the rotational movement of the opening / closing door 5 opens / closes the disc exchange port 1a.

FIG. 4A shows the outer door 5a of the opening / closing door 5,
Both of the inner doors 5b are shown in a closed state, which is the state except when the disk A is replaced. FIG. 4B
Shows a state in which the outer door 5a is opened and the inner door 5b is closed. In this way, one disc A can be exchanged from the slit 6 provided in the center of the inner door 5b, and only the inner door 5b can be closed by operating the reversing key 1g provided at the lower part of the disc exchange opening 1a. It will be in a state of being. FIG. 4C shows a state in which both the outer door 5a and the inner door 5b of the opening / closing door 5 are opened, and the exchange opening / closing key 1d provided below the disc exchange opening 1a is pressed. Driven by that. In this state, a plurality of disks A can be exchanged from the disk exchange port 1a.

In the disc storage portion 10, the opening / closing door 5
While either one of them is in the closed state, the disk position information stored in the storage unit described later is stored and the outer door 5
When both a and the inner door 5b are opened, the disc position information stored in the storage unit 100a is set to be erased.

FIG. 5 is a block diagram showing the internal structure of the disc changer device 1. As shown in FIG. 5, the disc changer device 1 includes a microcomputer 1
00, operation unit 101, display unit 102, disc exchange opening / closing control motor driver 103, rotary tray control motor driver 104, disc arm control motor driver 105, disc ejection control motor driver 106,
It is composed of a DSP 107, a pickup unit 108, a disc exchange opening / closing control motor 109, etc.
Each part is connected by a bus.

The storage unit 100a stores a control program for controlling the disc changer device 1 and various application programs related to this program, and temporarily stores execution files of these various programs and various data generated upon execution thereof. A work area to be stored in memory. In particular, the position data of each stocker output from the first to third sensors 14a to 14c and the disk presence / absence data output from the disk presence / absence detection sensor 14d via the line indicated by Various data and the like calculated by the microcomputer 100 based on the signal are stored.

Furthermore, the microcomputer 100 opens / closes the disc exchange port 1a and opens / closes the rotary tray 11 according to the operation signals provided by the operation keys of the operation unit 101 and the rotary tray operation dial 1e (see FIG. 1). It controls a rotation operation, an operation of the disk arm 13, or a reproduction process performed by a reproduction device (not shown) in which the disk A is set.

The operation unit 101 is composed of various operation keys related to disk operation such as a reproduction key 1b, a stop key 1c, an exchange opening / closing key 1d, and a rotary tray rotary dial 1e. Then, the operation signal of each key and dial is output to the microcomputer 100. Operation unit 10
1 may output an operation signal by remote control to the microcomputer 100.

The display section 102 is an LCD (liquid crystal).
A display device 1f such as a display) and the like, and in accordance with the instruction of the display signal input from the microcomputer 100, the track number and the progress time of the disc A being reproduced and the operation of the rotary operation of the rotary tray 11 on the display screen. The mode etc. are displayed.

Disk exchange opening / closing control motor driver 1
Reference numeral 03 denotes a disk exchange opening / closing control motor 109 for opening / closing the opening / closing door 5 of the disk changer device 1 based on a control signal output from the microcomputer 100.
To drive. In addition, in the present embodiment, FIG.
As shown in (c), the opening / closing door 5 is formed with a double door structure, and the outer door 5a and the inner door 5b of the opening / closing door 5 can be opened and closed independently.

Rotary tray control motor driver 10
4 drives a rotary tray control motor 12 for rotating the rotary tray 11 based on a control signal output from the microcomputer 100.

Disk arm control motor driver 105
Drives a disk arm control motor (not shown) that operates the disk arm 13 based on a control signal output from the microcomputer 100.

Disk ejection control motor driver 106
Drives a disc ejection control motor 110 that pulls out the disc pushing mechanism 15 based on a control signal output from the microcomputer 100.

DSP (Digital Signal Processor) 10
Reference numeral 7 converts the encoded digital data output from the pickup unit 108 into a data format that can be processed by the microcomputer 100 to convert the encoded digital data.
Output to 00. The pickup unit 108 reads the encoded digital data recorded on the disc A set in the reproducing device (not shown) and outputs it to the DSP 107.

Next, the operation will be described with reference to the flowchart of FIG. First, when the reproduction key 1b of the disc changer device 1 is pressed and a reproduction start signal for instructing the reproduction start of the disc A is input, the microcomputer 100 of the disc changer device 1 starts the reproduction operation. Specifically, as shown in FIG. 6, the reproduction key 1b
When is pressed, the microcomputer 100 supplies a transport control signal to the rotary tray control motor driver 104, and the rotary tray 11 is moved so that the position of the stocker 11a storing the selected disk A is opposite to the disk arm 13. Is rotated (step S101).

Next, when the position of the stocker 11a of the selected disk A is rotated to the position facing the disk arm 13, a disk arm control signal is supplied to the disk arm control motor driver 105, and the disk arm 13 causes the disk arm control signal to be output. The disk A stored at the position is clamped and is transported to a predetermined reproduction position (step S
102). After that, the pickup unit 108 causes the data recorded on the disk A to be read, and the DSP 1
The data is decoded and reproduced according to 07 (step S
103).

Next, after the reproduction of one side of the disc A is completed, it is displayed on the display section 1f of the disc changer device 1 whether or not the disc A should be replaced or inverted (step S).
104). Then, when the instruction to replace the disc A is input by pressing the reverse key 1g on the operation panel, the process of returning the disc A being reproduced to the stocker 11a is performed (step S105).

Then, by the transport control signal of the rotary tray control motor driver 104, the rotary tray 11 is moved so that the storage position of the stocker 11a holding the disk A is opposite to the slit 6 provided at the center of the inner door 5b. Rotate and move. Then, a stop control signal is supplied to the rotary tray control motor driver 104, and the rotary tray 11 is stopped so that the stocker 11a comes to the back position of the slit 6 of the inner door 5b (step S106). Here, the microcomputer 100 outputs an opening control signal to the disk exchange opening / closing control motor driver 103 in response to an operation, and the disk exchange opening / closing control motor 109 causes the inner door 5b of the open / close door 5 to rotate. The disk exchange port 1a is closed (step S107). Then, a closing control signal is output to the door opening / closing motor driver, the outer door 5a of the opening / closing door 5 is rotationally moved, and the disc exchange port 1a is opened (step S108).

Then, based on the control signal output from the microcomputer 100, the disk ejection control motor driver 106 drives the disk ejection control motor 110 which causes the disk ejection mechanism 15 to be ejected. Along with this, the disk A is pushed out from the slit 6 of the inner door 5b (step S109). In addition,
When the disc A pushed out is left as it is for a certain period of time, the disc ejection control motor 11 automatically
It is pulled in by 0 and the same plane is reproduced again.

The disc A taken out from the disc exchange opening 1a is turned upside down or exchanged, and then inserted again from the slit 6 of the inner door 5b (step S11).
0). Then, the disk ejection control motor driver 10
6, the disc ejection control motor 110 is driven, and the disc A is automatically pulled in. When the disk A is inserted into the disk changer device 1, a control signal is output to the disk exchange opening / closing control motor driver 103, the outer door 5a is rotationally moved, and the disk exchange opening 1a is closed. Further, at this time, the inner door 5b is rotationally moved to return to the state shown in FIG. 4A (step S1).
11).

The disk A inserted into the disk exchange port 1a is again rotated by the rotary tray control motor driver 10
According to the control signal No. 4, the rotary tray 11 is rotationally moved so that the storage position of the disc A comes to a position facing the disc arm 13. Then, when the position of the stocker 11a is rotated to the position opposed to the disc arm 13, the disc A accommodated in the stocker 11a is clamped by the disc arm 13 and is conveyed to a predetermined reproducing position. Then, the opposite surface of the disk A is reproduced (step S112).

As described above, according to the disc changer device 1 of the present embodiment, after the reproduction of one side of the disc A is completed in the reproducing section, the reverse key 1g is pressed.
When is pressed, the disk A stored in the stocker 11a moves to the position of the disk exchange opening 1a. At the same time, after the inner door 5b of the opening / closing door 5 is closed, the outer door 5 is closed.
a opens. Then, the disk A is exchanged through the slit 6 of the inner door 5b. Therefore, the open / close door detection sensor 14e provided on the substrate 16 is the disk exchange opening 1a.
Recognize that is closed.

Therefore, when the outer door 5a of the opening / closing door 5 is opened, the disc loading information stored until then is not erased, and the disc A whose front and back sides have just been reversed can be immediately reproduced. The time required to detect the loaded disc after the A exchange is shortened.

The stocker 11a accommodating the disk A to be reversed is stopped at the rear position of the slit 6 of the inner door 5b and automatically ejected from the disk exchange port 1a.
Therefore, it is possible to easily replace the disk A without the complicated procedure of visually checking the number of the stocker 11a and then replacing the disk as in the conventional case. Further, conventionally, when only one disc A is exchanged at the disc exchange port 1a, not only the stocker 11a storing a desired disc A but also a large number of stockers 11
Since "a" is also exposed, it is difficult to determine which is the desired stocker 11a at first glance. As a result, it is not necessary to visually check the number of the stocker 11a and then exchange the disk A to perform a complicated procedure.

The present invention is not limited to the contents of the above embodiment, and can be modified as appropriate without departing from the spirit of the present invention. For example, in the present embodiment, it is assumed that the disc changer device 1 reverses and plays the disc A, but the present invention is not limited to this, and the present invention can be applied to the case where the disc A is to be replaced with another disc. .

Further, in the present embodiment, a DVD is assumed as the disc to be loaded into the disc changer device 1, but the present invention is not limited to this, and the present invention can be applied to a CD, an LD and the like.

[0057]

According to the present invention, the first door is opened after the second door of the opening and closing doors is closed. Then, the recording medium is exchanged through the slit of the second door. Therefore, when the outer door of the open / close door is opened, the loading information stored until then is not erased, and the recording medium just inserted can be detected based on the loading information. Therefore, the time required to detect the recording medium after replacement is shortened.
Similarly, it is possible to easily replace the recording medium that has been instructed to reverse the front and back.

[Brief description of drawings]

FIG. 1 is a diagram showing a front surface portion of a disc changer device.

FIG. 2 is a top view showing a schematic configuration of a disc storage portion of the disc changer device.

3A is a timing chart of pulse signals PH1 to PH3 output from sensors 104a to 104c, and FIG. 3B is a pulse chart PH1 and PH2 output from sensors 104a and 104b and a disk presence / absence detection sensor. 1
4D is a timing chart of a disc presence / absence detection signal output by 04d.

4A and 4B are views showing a disk exchange port of the disk changer device, in which FIG. 4A is a state in which both the outer door and the inner door of the open / close door are closed, and FIG. 4B is a view in which the inner door of the open / close door is closed. A state, (c) shows a state in which both the outer door and the inner door of the opening / closing door are opened.

FIG. 5 is a block diagram showing an internal configuration of a disc changer device.

FIG. 6 is a flowchart showing the operation of the disc changer device in this example.

FIG. 7 is a flowchart showing an operation of a conventional disc changer device.

[Explanation of symbols]

1 Disc Changer Device 1a Disc Exchange Port 1b Playback Key 1c Stop Key 1d Exchange Port Open / Close Key 1e Rotary Tray Operation Dial 1f Display 1g Inversion Key (Input) 5 Open / Close Door (Door) 5a Outside Door (First Door) 5b Inner door (second door) 6 Slit 10 Disc storage 11 Rotary tray 11a Stocker (storage) 12 Rotary tray control motor 13 Disc arm 14 Support plate 14a First sensor 14b Second sensor 14c Third sensor 14d Disc presence / absence detection sensor (Presence / absence detection unit, re-detection unit) 14e Open / close door detection sensor (door detection unit) 15 Disc loading / unloading mechanism 16 Substrate 100 Microcomputer 100a Storage unit 101 Operation unit 102 Display unit 103 Replacement opening / closing control motor driver 104 Rotary tray control motor driver 05 disk arm control motor driver 106 disk unloading control motor driver (replacement unit, the recording medium discharging means) 107 DSP 108 pickup unit 109 exchange opening and closing control motor A disk

Claims (4)

[Claims] 1. A plurality of storage sections that store a plurality of recording media on which information is recorded and are movable in a predetermined direction, a door section that opens and closes when the recording media in the storage sections are exchanged, A door detection unit for detecting the open / closed state of the door unit, a presence / absence detection unit for detecting the presence / absence of a recording medium for each storage unit, and a storage unit for storing loading information based on the detection result of the presence / absence detection unit are provided. In the disc changer device, the door portion includes a first door arranged outside and a second door arranged inside the first door and having a slit having a width of one sheet.
The loading information stored in the storage unit includes a door and an input unit for inputting an opening / closing instruction of the door unit, and when one of the door units is detected to be closed by the door detection unit. A disc changer device comprising control means for holding the disc changer. 2. A replacement means capable of rotating and moving the storage portion to a position on the back surface of the slit while the second door is closed, and replacing the recording medium from the slit at the position. The disc changer device according to claim 1, further comprising: 3. The re-detection means for detecting loading information of a recording medium reinserted into the storage portion by the automatic replacement means based on the loading information of the storage portion. Disc changer device. 4. The disc changer device according to claim 2, further comprising a recording medium ejecting unit that automatically ejects the recording medium that is determined to be turned upside down depending on a reproduction state.