JP2513162B2 - Disc player - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player which selectively mounts discs housed in a plurality of disc housing sections on a disc mounting portion to reproduce or record information.

[0002]

2. Description of the Related Art In a disc player for reproducing or recording information by using a disc as a disc-shaped recording medium on which digital information signals are recorded, a plurality of discs are stored in respective storage sections (disc storage sections). A disc storage part is formed by mounting the mounted disc magazine, and a disc loading operation of taking out the selected disc from the mounted disc magazine and mounting it in the disc mounting part, and detaching the disc from the disc mounting part. A disc change function has been proposed for performing a disc unloading operation of returning the disc into the disc magazine.

In a disc player having such a disc changing function, a disc is taken out from a selected one of a plurality of disc storing sections provided in a mounted disc magazine and then taken out to perform a disc loading operation. A disc ejecting / conveying mechanism for conveying the formed disc to the disc mounting portion is provided so as to form the disc mounting means, and normally, the disc ejecting / conveying mechanism forming the disc mounting means further includes a disc The disc mounted in the mounting part,
The operation of carrying the disc from the disc mounting portion to the disc magazine and storing it in the original disc storage section of the disc magazine, that is, the disc unloading operation is also performed. Such a disk ejection / transport mechanism is configured to be movable in the arrangement direction of the plurality of disk storage sections of the mounted disk magazine, and any one of a plurality of disk extraction positions to which the plurality of disk storage sections are respectively associated. Thus, a disk ejecting operation for ejecting a disk from the disk storage section corresponding to the disk ejecting position, and a disk ejected by the disk ejecting operation,
It is driven to perform a disc transport operation of transporting the disc from the disc take-out position to the disc mounting portion.

Then, a disc magazine is mounted,
When information is reproduced or recorded, various operation keys arranged on the front operation panel and the like are operated, and a plurality of disks stored in the disk magazine are
A disk ejection mode to be sequentially taken out in the arrangement order of the plurality of disk storage sections in the disk magazine, or a disk ejection mode to be sequentially taken out according to the specified order from each of the plurality of disk storage sections in the disk magazine is set. The ejection / transport mechanism is moved to sequentially take a plurality of disc ejection positions according to the set disc ejection mode. In such a case, the disc take-out / conveyance mechanism is assumed to take the first disc take-out position according to the set disc take-out mode, perform the disc take-out operation at the disc take-out position, and then perform the disc carry-out operation. Then, the taken out disc is put in a state of being mounted in the disc mounting portion. Then, the disc is conveyed to the disc mounting portion by the disc conveying operation, reproduction or recording of information about the disc mounted in the disc mounting portion is completed, and the disc unloading operation is performed to return the disc to the original disc storage section. After that, the disc is moved to the next disc ejection position according to the set disc ejection mode, the disc ejection operation is performed again at the next disc ejection position, and then the disc transport operation is performed.
The ejected disc is set in a state of being mounted in the disc mounting portion, and such an operation is sequentially repeated for each disc ejection position.

Information on each of a plurality of disks accommodated in the disk magazine is obtained by repeating the disk ejecting operation at each disk ejecting position of the disk ejecting / conveying mechanism forming the disk mounting means and the subsequent disk conveying operation. The reproduction or recording of the data is sequentially and continuously performed in the order according to the set disc ejection mode.

[0006]

As described above, in the disk player having the disk change function, when the reproduction or the recording of the information on each of the plurality of disks stored in the disk magazine is sequentially and continuously performed. In the case where there is an empty disk in which no disk is stored among a plurality of disk storage sections of the disk magazine, the disk removal section in which the empty disk storage section takes a corresponding disk removal position. Even if the transport mechanism performs the disk removal operation there, the disk will not be removed. For this reason, a state occurs in which information cannot be reproduced or recorded, and the information reproduction or recording operation to be continuously performed is undesirably interrupted.

[0007] Further, if the disc conveyed to the disc mounting unit by the disc convey operation of the disc unloading / conveying mechanism is turned upside down or the information recording portion is damaged, the proper information Even in the case where reproduction or recording cannot be performed, and it is determined that the information is not in a normal state, the reproduction or recording operation of information to be continuously performed is undesirably interrupted.

When the information reproducing or recording operation is interrupted undesirably in this way, in order to restart it, the operation for setting the information reproducing or recording operation for the disc player is performed again. There is the inconvenience of having to do it again.

In view of such a point, the present invention reproduces information about a disc stored in a plurality of disc storage sections while it is taken out from the disc storage section and mounted in the disc mounting portion. Alternatively, the recording can be sequentially and sequentially performed in the order according to the set disc ejection mode, and if there is an empty disc in which the discs are not accommodated in the plurality of disc storage compartments, or a plurality of discs are recorded. When the disc taken out from the selected one of the storage compartments and conveyed to the disc mounting part cannot be reproduced or recorded with proper information, or is in an abnormal state. Also, it is possible to avoid the situation where the reproduction or recording operation of the information that should be continued is undesirably interrupted. Also, if no disc is stored in any of the multiple disc storage compartments, or if none of the discs stored in the disc storage compartment is in a normal state, that state can be easily recognized. Provide a disc player that can be played.

[0010]

DISCLOSURE OF THE INVENTION A disc player according to the present invention comprises a disc storage portion provided with a plurality of disc storage sections each storing a disc, a disc mounting portion to which the disc is mounted, and a plurality of disc mounting portions. A disc mounting means for selectively mounting a disc stored in the disc storage section to the disc mounting section, and a disc mounting section in a selected one of the plurality of disc storage sections should be mounted. Disc presence / absence discriminating means for discriminating presence / absence of disc, disc correctness discriminating means for discriminating whether or not the disc mounted by the disc mounting means is normal, and disc presence / absence discriminating means or discs for disc mounting means And an operation control means for performing a predetermined control based on the discrimination output from the correctness discrimination means It is. Then, the operation control means obtains a discriminating output indicating that there is no disc from the disc presence / absence discriminating means after the disc selecting / mounting operation for the selected one of the plurality of disc storage sections is started by the disc mounting means. When the disc is loaded, or when a disc output indicating that the disc loaded in the disc loading section is not normal is obtained from the disc correctness discriminating unit, the disc loading unit should be selected next to the selected disc storage section. No disk is present in any of the plurality of disk storage sections after the disk selective loading operation for the disk storage section is performed and the disk loading means continuously performs the disk selective loading operation. No warning is given when it is found that none of the discs mounted on the It is intended to set the that state.

In the disc player according to the present invention as described above, when reproducing or recording information, there are discs which are not accommodated in a plurality of disc accommodating sections or discs which are not properly mounted in the disc mounting portion. If the stored one is included, it is indicated from the disc presence / absence discriminating means that there is no disc after the disc selecting / mounting operation for the selected one of the plurality of disc storing sections is started by the disc mounting means. When a discriminant output is obtained, or when a discriminant output indicating that the disc mounted in the disc mounting portion is not normal is obtained from the disc correctness discriminating unit, the disc mounting unit is automatically selected for the disc storage section. Performs disc selection / mounting operation for another disc storage section to be selected next Take the state. This avoids the situation where the reproduction or recording operation of the information to be continued is undesirably interrupted.

Moreover, when the plurality of disc storage sections are in a state where no disc is stored in any of them, or none of the discs stored therein is normally mounted in the disc mounting portion. In the state where the disk is mounted, the disk mounting means repeats the disk selection and mounting operation, and thereafter, a warning is given by a warning display, an alarm sound, or the like. Therefore, the plurality of disc storage sections are in a state in which no disc is stored in any of them, or in a state in which none of the discs stored in them are properly mounted in the disc mounting portion. Is easily recognized,
It is possible to avoid a situation in which the operation by the disk mounting portion is unnecessarily continued.

[0013]

1 and 2 show the mechanical structure of an example of a disc player according to the present invention.

In the example shown in FIGS. 1 and 2, the lower fixed chassis 10, the upper fixed chassis 42 disposed above the lower fixed chassis 10, and the lower fixed chassis 10 and the upper fixed chassis 42. And a movable chassis 50 that can be moved up and down between them. The lower fixed chassis 10 is provided with a disk mounting portion 14 that is driven to rotate by a spindle motor, and is also provided with a magazine mounting portion 16. Has been. Magazine mounting section 16
The disk magazine 20 is mounted on the, and as the disk magazine 20, the one shown in FIGS. 3 and 4 is used. The disk magazine 20 shown in FIGS. 3 and 4 has a box 22 provided with an opening 21 on one side surface.
A plurality of partition plates 23 supported on the inner surfaces of the side wall portions opposing each other with 1 interposed therebetween are arranged at equal intervals, and a plurality of disk storage sections are formed. In each of these disk storage sections, disks D are supported in parallel with each other and stored in a staged state.

A plurality of guide grooves 25 as shown in FIG. 4 are formed in parallel with each other on the side wall of the box 22 of the disc magazine 20, and each of the guide grooves 25 accommodates a disc. A slider 27 is provided which is movable in the direction along the surface of the disc D housed in the section. The slider 27 is positioned between the partition plates 23,
Protrusions 34 and 3 projecting out of the housing 22 through a plurality of slits 32 and 36 formed in parallel at positions corresponding to the guide grooves 25 on the side wall of the housing 22.
Eight. Also, at one end of each slider 27,
An extruded piece 30 is provided which projects into the inside of the housing 22 and abuts against the outer peripheral edge of the disk D, and is moved to a position on the side of the opening 21 provided in the housing 22, that is, the disk pushing position. At this time, the disk D stored in each disk storage section is made to protrude from the opening 21 to the outside of the housing 22.

When such a disc magazine 20 is mounted on the disc mounting portion 14 and the state as shown in FIG. 1 or 2 is taken, the disc magazine 20 is
In the example shown in FIG. 1 and FIG. 2, forms a disc storage portion provided with a plurality of disc storage sections each storing a disc.

As shown in FIGS. 1 and 2, between the lower fixed chassis 10 and the upper fixed chassis 42, three feed screw members 39 are rotatably supported and three guide shafts are provided. The member 40 is erected. A movable chassis 50 is engaged with each of the feed screw members 39 by a driven member 51 having a female screw portion.
0 is engaged with the movable chassis 50 via the sleeve member 52, and when the feed screw member 39 is rotated, the movable chassis 50 is guided by the three guide shaft members 40. The disk magazine 20 mounted on the magazine mounting portion 16 moves up and down between the lower fixed chassis 10 and the upper fixed chassis 42.

A motor 44 is attached to the upper fixed chassis 42, and a large diameter center gear 46 is further provided.
And three gears 48 meshing therewith are pivotally mounted.
Each of the three gears 48 meshes with a drive gear 39a provided on each of the three feed screw members 39.
One of the three gears 48 that is close to the motor 44 is
It is meshed with a small-diameter gear portion 49a of a transmission gear 49 that is axially attached to the upper fixed chassis 42 and meshes with a gear 44a attached to the output shaft of the motor 44. As a result, by the rotation of the motor 44, the drive gear 39a provided on the feed screw member 39 adjacent to the motor 44 is rotationally driven via the gear 44a, the transmission gear 49, and the gear 48, and further the other two The drive gear 39a provided on the feed screw member 39 is rotationally driven via the center gear 46 and the gear 48. As a result, the three feed screw members 39 are simultaneously rotationally driven. The three feed screw members 39, the motor 44, the center gear 46, the three gears 48, the transmission gear 49, the gear 44a, and the like form a chassis drive mechanism for moving the movable chassis 50 up and down. In addition,
A through hole 46a is provided in the center gear 46, and a photo sensor 47, which is a position sensor for detecting the through hole 46a when the center gear 46 is rotated, is attached to the upper fixed chassis 42.

The movable chassis 50 has a disk mounting portion 1
4, the clamp arm 53a is attached to the shaft 53
The clamp arm 53a is rotatably supported by a clamp arm 53a. A clamp member 53b, for example, of a magnet type, which is opposed to the disc mounting portion 14, is supported at the distal end of the clamp arm 53a. The clamp arm 53a is urged by a spring member 54 in a direction in which the clamp member 53b is separated from the disc mounting portion 14.

The movable chassis 50 also has slider drive means 55 for moving a predetermined one of the plurality of sliders 27 in the disc magazine 20 mounted in the magazine mounting portion 16 to the disc pushing position, and the magazine mounting portion. The disc D, which is projected to the outside of the box 22 from the opening 21 of the disc magazine 20 mounted on the disc 16, is taken out from the disc magazine 20 and conveyed from the magazine mounting part 16 side to the disc mounting part 14 side. Disk ejecting / conveying means 70 for conveying from the disc mounting portion 14 side to the magazine mounting portion 16 side, and the disc D conveyed by the disc ejecting / conveying means 70 from the disc mounting portion 14 side to the magazine mounting portion 16 side. , Its edge to be pushed into one of the disc storage compartments in the disc magazine 20. In contact with the disk storage means 6
6 and position sensors 80 and 82 for detecting the position of the disk D on the movable chassis 50.

The slider driving means 55 has a slide lever 57 provided with an engaging portion 56 that engages with the protrusion 34 of the slider 27 of the disc magazine 20 mounted in the magazine mounting portion 16. Then, as shown in FIG. 4, the slide lever 57 has a gear mechanism 59 including a roller 58 that engages with an elongated hole 57a provided therein.
And a motor 60 for driving the gear mechanism 59.

For example, when the motor 60 is normally rotated, the slide lever 57 is moved in the direction indicated by the arrow X from the position indicated by the solid line in FIG. 4 to the position indicated by the alternate long and short dash line. Engagement part 5
6 moves the slider 27 from the non-operation position shown by the solid line to the disk pushing position shown by the dashed line. As a result, as shown by a solid line in FIG. 4, the disk D stored in the disk storage section corresponding to the moved slider 27 in the disk magazine 20 is pushed out by the extruded piece 30 of the slider 27. Is projected from the opening 21 of the disk magazine 20 as shown by a one-dot chain line. On the other hand, when the motor 60 is reversed, the slide lever 57 returns to the original position shown by the solid line in FIG. 4 and stops.

The shaft 64 to which the gear 62 constituting the gear mechanism 59 is fixed serves as the shaft of the drive roller 71 constituting the disc take-out / conveying means 70, and the motor 60 moves the slide lever 57 to the original position. Even after the movement is stopped, the operation state is maintained, and thereafter only the drive roller 71 is rotationally driven. Above the drive roller 71, as shown in FIG.
The guide plate 76 is also rotatably supported by the support plate 74. The support plate 74 is connected to the movable chassis 50 via a link member 78. The free roller 72, the support plate 74, and the guide roller 76, together with the drive roller 71, selectively mount the disks D stored in the plurality of disk storage sections provided in the disk magazine 20 on the disk mounting portion 14. The selective loading operation and the disc magazine 20 loaded with the disc D loaded in the disc loading unit 14
The disk ejecting / conveying means 70 serves as a disk mounting means for performing a disk returning operation for returning to a corresponding one of a plurality of disk storage sections provided therein.

The photo sensor 47, which is a position sensor attached in association with the center gear 46, has a pair of through holes 46a formed at positions opposed to each other in the radial direction when the center gear 46 is rotated. While detecting and generating a detection output pulse signal, until the photo sensor 47 detects the through hole 46a once and subsequently detects the next through hole 46a, that is, while the center gear 46 makes a half rotation, The movable chassis 50 is configured to be moved up and down by a distance corresponding to a disc storage section interval in the disc magazine 20 mounted in the magazine mounting portion 16. Therefore, as the center gear 46 rotates, the photo sensor 4
The detection output pulse signal obtained from 7 corresponds to the position of the movable chassis 50 with respect to each disc storage section of the disc magazine 20 mounted in the magazine mounting portion 16.

Position sensors 80 and 82 for detecting the position of the disk D on the movable chassis 50.
Are turned on when the disks D spatially engage with them to generate a detection output signal. Then, when the disk D takes a position in which most of the disk D is in the disk magazine 20 and only a part of the disk D projects out of the opening 21 of the disk magazine 20 as shown by the chain double-dashed line in FIG. When both the sensors 80 and 82 are turned off, and when the sensor 80 and the sensor 80 and the sensor 80 and the sensor 80 and the sensor 80 and the sensor 80 and 82 are in a position where they are pulled out of the disc magazine 20 further than the position shown by the chain double-dashed line in FIG. Only the position sensor 80 is turned on when only the position sensor 80 is turned on and the position corresponding to the disk mounting portion 14 is taken as shown by the solid line in FIG.

FIG. 6 schematically shows the configuration of a circuit system in an example of the disc player according to the present invention which has the above-mentioned mechanical configuration. In this example, information is reproduced from the disk D taken out of the disk magazine 20, and digitized program information and address data are recorded on the disk D by spiral recording tracks. , So that they can be read optically.

An optical head 90 for optically reading program information and address data from the disk D mounted in the disk mounting section 14 is provided near the disk mounting section 14 described above. . The optical head 90 moves in the radial direction of the disk D so as to follow a spiral recording track of the disk D mounted on the disk mounting portion 14 and rotated. A read signal SR for the recorded program information and address data is obtained.

Read signal SR obtained from the optical head 90
Is supplied to the read signal processing unit 91, and the read signal processing unit 91
A reproduction output signal Sp of program information and address data, an error signal Se for servo control, and a disc discrimination output signal Sx are obtained. The servo control error signal Se is supplied to the optical head control unit 92, and based on this, the optical head control unit 9 is controlled.
The drive signal Ss is supplied from 2 to the servo control drive unit in the optical head 90, and focus servo control and tracking servo control are performed. Further, the disc discrimination output signal Sx indicates that the disc D placed in the disc mounting portion 14 is
Then, it is a signal indicating whether or not the disk is in a normal state in which an appropriate read signal SR can be obtained. For example, when the front and back of the disk D are reversed, that is, when the information recording surface of the disk D is If the disc D is not properly arranged, or if the information recording surface of the disc D is damaged and cannot be read properly by the optical head 90, it indicates that the disc D is not in a normal state. Becomes The disc discrimination output signal Sx is
Supplied to the system controller 100.

Further, a reproduction output signal S of program information and address data obtained from the read signal processing section 91.
p is supplied to a decoder 93, from which reproduction program information P is obtained and a reproduction address
Data Q is transmitted. Then, the reproduction program information P
Is supplied to the program information processing unit 94 to be subjected to various kinds of processing, and a reproduction program information signal, for example, an audio signal A is obtained from the program information processing unit 94 and led to the output terminal 95. On the other hand, playback address / data Q
Is a system controller 1 which constitutes operation control means.
00 is supplied.

To the system controller 100, a disc take-out command signal C sent from the operation panel section 101 is sent.
d, a reading position designation signal Ce and a reproduction start command signal Cf are also supplied, and the system controller 100 controls the disk D by the optical head 90 based on the reading position designation signal Ce and the reproduction address data Q from the decoder 93 and the like.
Is supplied to the optical head control unit 92 for controlling the reading position of the optical head. When the control signal Sh is supplied to the optical head control unit 92,
The optical head control unit 92 sends a drive signal St in response to the control signal Sh so as to move the reading position of the optical head 90, thereby causing the optical head 90 to move rapidly in the radial direction of the disk D.

Further, the system controller 100 is supplied with the detection output pulse signal SPa from the photo sensor 47 and the detection output signals SPb and SPc from the position sensors 80 and 82, respectively. Then, the system controller 100 outputs these signals SPa,
Drive control signals Qa and Qb are formed in accordance with SPb and SPc, and a disc ejection command signal Cd supplied from the operation panel section 101, and these are sent to the motor drive sections 96 and 97 for the motors 44 and 60, respectively. Supply. The motor drive units 96 and 97 control the operation of the motors 44 and 60 by rotating the motors 44 and 60 forward or reverse according to the drive control signals Qa and Qb, respectively. This allows
The system controller 100 includes a chassis drive mechanism for the movable chassis 50, a slider drive unit 55 for moving the slide lever 57, and a disk in accordance with the disk removal command signal Cd, the detection output pulse signal SPa, and the detection output signals SPb and SPc. Removal / transportation means 70
Will be controlled.

Further, the system controller 100
Forms a display control signal Da for activating the warning display unit 102 and a speaker control signal Db for activating the speaker 104 that emits a warning sound, as necessary, and transmits them to the warning display unit 102 and the speaker 104. Each is supplied to the speaker driving unit 103 to be driven. The warning display unit 102 and the speaker 104 are mounted when the disk D is not stored in any of the plurality of disk storage sections in the disk magazine 20 mounted on the magazine mounting unit 16 or when the disk D is mounted on the magazine mounting unit 16. If none of the disks D stored in the plurality of disk storage sections in the disk magazine 20 is in a normal state, a warning is displayed to that effect and a warning sound is generated to that effect. The system controller 1
00 and other circuit components are arranged on one of the lower fixed chassis 10 and the upper fixed chassis 42 shown in FIGS. 1 and 2 or on the movable chassis 50.

In one example of the disc player according to the present invention having the above-mentioned mechanical structure and circuit system structure, one of the information reproducing operation modes is as follows.
The disc magazine 20 is mounted in the magazine mounting portion 16, and the reproduction of the program information from each of the plurality of discs D accommodated therein is sequentially and continuously performed with automatic exchange of the discs D. To be

When such a continuous reproduction operation mode is adopted, first, the disc magazine 20 is attached to the magazine attaching portion 16, and then the operation panel portion 10 is attached.
By the operation in 1, the disc ejection mode is set. The disc ejection mode is set, for example, such that each of the discs D accommodated in the disc magazine 20 is to be sequentially ejected in the arrangement order of the plurality of disc storage sections in the disc magazine 20, and a disc corresponding to the disc ejection mode is set. An extraction command signal Cd is supplied from the operation panel unit 101 to the system controller 100. Thereby, the order of taking out each of the disks D stored in the disk magazine 20 from the disk magazine 20 to be mounted on the magazine mounting unit 16 is stored in the memory built in the system controller 100.

Thereafter, the operation panel section 101 is operated and the reproduction start command signal Cf is transmitted to the system controller 100.
To the system controller 10
The drive control signal Qa is supplied from 0 to the motor drive unit 96. When the drive control signal Qa is supplied to the motor drive unit 96, the motor 44 rotates forward or backward to drive the movable chassis 50 via the center gear 46, and the disk magazine mounted on the magazine mounting unit 16. Move up or down with respect to 20. Then, as the movable chassis 50 moves, the system controller 10
0, the control is performed via a drive control signal Qa for the motor 44 based on the detection output pulse signal SPa obtained from the photo sensor 47 in response to the rotation of the center gear 46, and the movable chassis 50 is disposed thereon. Then, the disk is stopped in a state where the selected disk removal position corresponding to the disk D to be removed first, that is, the disk storage section corresponding to the first disk D, is set.

Next, a drive control signal Qb is supplied from the system controller 100 to the motor drive unit 97 to operate the motor 60, and the slide lever 57 is moved from the position shown by the solid line to the position shown by the alternate long and short dash line in FIG. The slider 27 corresponding to the selected disc take-out position is moved to the disc push-out position. At this time, if the first disk D is stored in the disk storage section corresponding to the selected disk ejection position, the movement of the slider 27 causes the first disk D to be moved in a dashed line in FIG. As shown in the figure, a part thereof projects outside from the opening 21 of the disk magazine 20 and is inserted between the driving roller 71 and the free roller 72 constituting the disk take-out / transportation means 70. .

Then, the motor 60 drives the driving roller 71.
Is driven, the first disk D is pulled out of the disk magazine 20 under the guidance of the free roller 72 and the guide roller 76, and passes through the position shown by the two-dot chain line and the position shown by the one-dot chain line in FIG. , As shown by the solid line. When the first disk D is moved, the system controller 100 controls the motor 60 based on the detection output signals SPb and SPc obtained from the position sensors 80 and 82, and the first disk D is When reaching the position corresponding to the mounting portion 14, the operation of the motor 60 is stopped, and the first disk D is held at that position.

In such a state, the system controller 100 again sends the drive control signal Qa to the motor drive section 96, whereby the motor 44 is operated and the movable chassis 50 is lowered. Accordingly, the first disk D is moved from the position indicated by the solid line in FIG. 7 to a position mounted on the disk mounting portion 14 as indicated by the dashed line, and is supported by the clamp arm 53a. The first disk D is mounted on the disk mounting portion 14 by being clamped on the disk mounting portion 14 by the clamp member 53b. The movable chassis 50 is then further lowered by a predetermined distance, whereby the drive roller 7
1, the free roller 72 and the guide roller 76 are separated from the disc D mounted on the disc mounting portion 14. Then, when the movable chassis 50 is lowered to a predetermined position, a switch (not shown) is turned on, the drive control signal Qa from the system controller 100 is stopped, and the operation of the motor 44 is stopped.

Under such a condition, the first disc D
The program information and address data are read by the optical head 90 shown in FIG.
In 5, information reproduction is performed on the first disk D from which an audio signal A that is a reproduction program information signal is obtained. When the information reproduction for the first disk D is completed, the motors 44 and 60 are rotated in the reverse direction to drive the movable chassis 50 and the drive roller 71 constituting the disk take-out / transportation means 70. ,
The movable chassis 50 is again moved to the disk take-out / transport unit 7.
0 is set to a state where the selected disk ejection position corresponding to the disk storage section for the first disk D is set, and the first disk D is returned to the original disk storage section.

Then, subsequently, the drive control signal Qa is supplied from the system controller 100 to the motor drive unit 96, and the motor 44 moves the movable chassis 50 from the initially selected disk take-out position. As the movable chassis 50 moves, the system controller 100
Is controlled by the drive control signal Qa for the motor 44 based on the detection output pulse signal SPa obtained from the photo sensor 47 according to the rotation of the center gear 46, and the movable chassis 50 picks up and conveys the disk. The means 70 is stopped with the disc D to be taken out next, i.e. the selected disc ejection position to which the disc storage section for the second disc D corresponds. Then, after such a state is taken, each operation similar to the pulling-out operation, the transporting operation, and the information reproducing operation with respect to the first disk D described above is performed on the second disk D, and thereafter, the three operations are performed. The same operation is sequentially repeated for each of the disks D and subsequent disks.

On the other hand, for example, when the first disk D is not stored in the disk storage section corresponding to the initially selected disk extraction position, the extraction operation for the first disk D is performed as described above. Even if the operation is performed, the first disk D takes the position as shown by the alternate long and short dash line in FIG. 5, whereby the position sensor 82 cannot be turned on. At this time, in the system controller 100, the drive control signal Qb is sent to operate the motor 60, and the slide lever 57 is moved from the position indicated by the solid line in FIG. 4 to the position indicated by the alternate long and short dash line. Even after a predetermined time of, for example, about 5 seconds elapses after the slider 27 corresponding to the selected disk ejecting position is set to the disk pushing position, the detection output signal SPc from the position sensor 82 is It is detected that the position sensor 82 does not indicate that the position sensor 82 has been turned on, and the absence of the first disk D is detected. That is, the position sensor 82 serves as a disc presence / absence discriminating means for discriminating the presence / absence of the disc D in the selected disc storing section corresponding to the selected disc taking-out position taken by the disc taking-out / conveying means 70. The detection output signal SPc from the sensor 82 is a determination output signal regarding the presence or absence of the disk D.

When the system controller 100 detects that the first disk D is not present based on the detection output signal SPc from the position sensor 82, the system
A drive control signal Qa is supplied from the controller 100 to the motor drive unit 96, and the movable chassis 50 is moved from the initially selected disc ejection position to eject the disc.
Control is performed to stop the transport unit 70 in a state where the selected disk removal position corresponding to the disk storage section of the second disk D is set. Further, the drive control signal Qb is sent out and the motor 60 is operated in a state where the disk removal / transportation means 70 assumes the selected disk removal position corresponding to the disk storage section for the second disk D. Then, the slider 27 is assumed to assume the disk pushing position, and the disk removing / transporting means 70 performs the extracting operation for the second disk D. Then, the transport operation and the information reproduction operation for the second disk D are performed as described above.

In this way, when the disc D to be ejected is not in the corresponding disc storage section, the ejecting operation for the disc D to be ejected next is automatically performed, and therefore, Each disc D
Is not interrupted.

Further, for example, the disc take-out / conveying means 7
0 and the subsequent transport operation is performed,
The first disk D mounted on the disk mounting unit 14
However, for example, the information recording surface is not properly arranged with respect to the optical head 90, or the information recording surface is damaged and the optical head 90 cannot perform proper reading. In some cases, the disc discrimination output signal Sx supplied to the system controller 100 from the read signal processing unit 91 shown in FIG. 6 indicates that the first disc D is not in a normal state. Therefore, the read signal processing unit 91 uses the disk ejecting / transporting means 7
When 0, it constitutes a disc correctness discriminating means for discriminating whether or not the disc D mounted on the disc mounting portion 14 is normal.

When the disc discriminating output signal Sx is supplied to the system controller 100, the system controller 100 causes the motors 44 and 60 to operate.
However, as opposed to the case where the first disc D is taken out of the disc magazine 20 and mounted in the disc mounting portion 14, the movable chassis 50 and the disc are ejected.
The drive roller 71 that constitutes the conveying means 70 is driven, and the movable chassis 50 moves the disk ejecting / conveying means 70.
The first disk D is returned to the original disk storage section with the selected disk ejecting position corresponding to the disk storage section for the first disk D.

Subsequently, the drive control signal Qa is sent from the system controller 100 to the motor drive unit 96.
Is supplied, the movable chassis 50 is moved from the first selected disk removal position, and the disk removal / conveyance means 70 is set to the selected disk removal position corresponding to the disk storage section for the second disk D. In the state where the stop is performed in a state where the second disk D is stopped, the disk ejecting / transporting unit 70 assumes the selected disk ejecting position corresponding to the disk storage section for the second disk D. , The drive control signal Qb is sent out to operate the motor 60 and the slider 27
Takes the disk pushing position, and the disk take-out / transporting means 70 performs the operation of pulling out the second disk D. Then, the transport operation and the information reproduction operation for the second disk D are performed as described above.

Therefore, the disk D conveyed to the disk mounting section 14 by the disk unloading / conveying means 70 is
Even when the optical disk 90 is not in a normal state in which proper reading by the optical head 90 is not performed, a state is taken in which the ejection operation for the next disk D to be ejected is automatically performed. Is not interrupted.

As a result of the operation under the control of the system controller 100 as described above, the disk D is stored in any of the plurality of disk storage sections of the disk magazine 20 mounted in the magazine mounting section 16. Is not present, or none of the disks D stored in the plurality of disk storage sections of the disk magazine 20 installed in the magazine installation section 16 is in a normal state in which the optical head 90 does not properly read. If it is determined that the display control signal Da and the speaker control signal Db are output from the system controller 100, the warning display unit 102 and the speaker driving unit 103 are displayed.
Respectively. Thereby, a warning display is performed by the warning display unit 102, and a warning sound is emitted from the speaker 104.

The disc ejecting operation control performed as described above is controlled by, for example, a microcomputer incorporated in the system controller 100, and the microcomputer ejects the disc ejecting operation control. An example of the program will be described below with reference to the flowchart of FIG.

In the disc ejecting operation control by the program shown in FIG. 8, each of the discs D accommodated in the disc magazine 20 is sequentially ejected in the order of arrangement of a plurality of disc accommodating sections in the disc magazine 20. Addresses 1 to 10 in the order of arrangement are made to correspond to the respective disk storage sections. This program is started when the reproduction start command signal Cf is supplied to the system controller 100. After the start, initialization is performed in a process 111, and an address flag N is set to 1 and an error flag E is set to zero.

Next, in process 112, the address flag N is set to the address n which represents the disk storage section for the first disk D determined based on the disk eject command signal Cd. Subsequently, in the process 113, the disk removing / transporting means 70
A disk ejection operation for pulling out a disk from the disk storage section to which the address represented by N set in (3), that is, the address n is made to correspond. At this time, the drive control signal Qa is supplied to the motor drive unit 96 to move the movable chassis 50, and the position of the movable chassis 50 is controlled based on the detection output pulse signal SPa from the photo sensor 47, thereby taking out and transporting the disk. Means 70 to take the disk ejection position corresponding to the disk storage section represented by address n, and in that state the drive control signal Q
b to the motor drive unit 97 to drive the slider 27 and drive the drive roller
1 is performed.

At the decision 114, based on the detection output signal SPc from the position sensor 82, it is determined whether or not the disk D is present in the disk storage section corresponding to the disk unloading position which the disk unloading / transporting means 70 takes at that time. to decide. If the result of this determination is that there is a disk D, in a process 115, disk loading for mounting the disk D taken out by the disk take-out / transporting means 70 to the disk mounting section 14 is performed. At this time, the drive control signal Qb is supplied to the motor drive unit 97 to cause the disc take-out / conveying means 70 to perform the disc carrying operation following the disc take-out operation, and thereafter, the drive control signal Qa is given to the motor drive unit 96. The movable chassis 50 is supplied and lowered, and the disc D conveyed by the disc take-out / conveying means 70 is placed on the disc mounting portion 14 and is held by the clamp member 53b.

Subsequently, in the decision 116, the optical disc 90 reads the disc D mounted on the disc mounting section 14, and the disc discrimination output signal Sx obtained from the read signal processing section 91 thereby. It is determined whether or not the disk D mounted on the disk mounting unit 14 is in a normal state based on. If the result of this determination is that the disc D loaded in the disc loading unit 14 is in a normal state, then in process 117, information is reproduced for the disc D loaded in the disc loading unit 14.

Thereafter, in decision 118, it is determined whether or not the information reproduction for the disk D mounted on the disk mounting unit 14 has been completed. If not, the decision 1 is continued until a result indicating that the reproduction has been completed is obtained.
The determination at 18 is repeated. Then, when the information reproduction for the disk D mounted on the disk mounting unit 14 is completed, in a process 119, the disk D mounted on the disk mounting unit 14 is removed.
The disk is unloaded from the disk magazine 20 and returned to the disk storage section represented by address n in the disk magazine 20. At this time, the drive control signal Qa is supplied to the motor drive unit 96, and further, the drive control signal Qb is supplied to the motor drive unit 97, and the motors 44 and 60 are rotated in the opposite direction to the time of loading the disk, thereby removing the disk.
The transport means 70 is again caused to take a disk removal position corresponding to the disk storage section represented by the address n.

Next, after the error flag E is set to zero in the process 120, in the decision 121, it is determined whether or not the address flag N is the maximum value of the address to which each of the plurality of disk storage sections is associated. If it is not 10, the process proceeds to the process 122 to increase the address flag N by 1 and then returns to the process 113. If the process is 10, the process proceeds to the process 123 and the address flag N is set to 1 and the process 113 proceeds. Return. Then, in the process 113, the disk removing / transporting means 70
Then, the disk ejecting operation for extracting the disk from the disk storage section corresponding to the address indicated by N set in the process 122 or 123, that is, the next address or 1 is performed. Hereinafter, the same control as described above is sequentially performed, and the control is repeated.

On the other hand, decision 1 in the above process
If it is determined in step 14 that there is no disk D, or if it is determined in decision 116 that the disk D mounted in the disk mounting unit 14 is not in a normal state, the process proceeds to process 124, where an error flag is set. After increasing E by one, it is determined in decision 125 whether or not the error flag E is ten. As a result, if the error flag E is not 10, the process proceeds to decision 121 and thereafter proceeds as described above, and
If the error flag E is 10, the magazine mounting unit 16
The disk D is not stored in any of the plurality of disk storage sections of the disk magazine 20 mounted on the optical disk 90, or the disk D stored in the disk magazine 20 mounted on the magazine mounting portion 16 is the optical head 90. Since it is not in a normal state in which proper reading is not performed by, the process proceeds to process 126, the display control signal Da is supplied to the warning display unit 102 to display the warning, and further in the process 127. ,
The speaker control signal Db is supplied to the speaker driving unit 103, a warning sound is generated in the speaker 104, and the control ends.

In the above example, the information is reproduced from the disc taken out from the disc magazine, but the disc player according to the present invention records the information on the disc taken out from the disc magazine. In this case, the same disc ejecting operation control as in the above example is performed.

[0058]

As is apparent from the above description, in the disc player according to the present invention, when reproducing or recording the information about the discs stored in the plurality of disc storage sections, the plurality of disc storage sections are If the disc does not contain a disc, or if the disc mounting part contains a disc that is not properly mounted, the disc for the selected one of the plurality of disc storage sections by the disc mounting means. After the selective loading operation is started, a discriminating output indicating that there is no disc is obtained from the disc presence / absence discriminating unit, or a discriminant output indicating from the disc correctness discriminating unit that the disc mounted in the disc mounting portion is not normal. Automatically, next to the disc compartment where the disc loading means is selected, Because the condition to take a disc selection mounting operation of the other disk storage segment to be-option is taken, reproducing or recording operation of should continue information occurrence of a situation that would be interrupted undesirably is avoided.

Further, according to the disc player of the present invention, when a plurality of disc storage sections are in a state where no disc is stored therein, or when any of the discs stored therein is present. When the disk is not normally mounted in the disk mounting portion, after the disk selective mounting operation by the disk mounting means is repeated, a warning is displayed and a warning is generated by issuing an alarm sound. Therefore, the plurality of disc storage sections are in a state in which no disc is stored in any of them, or in a state in which none of the discs stored in them are properly mounted in the disc mounting portion. This can be easily recognized, and it can be avoided that the operation by the disc mounting portion is unnecessarily continued.

[Brief description of drawings]

FIG. 1 is a side view showing a main part of an example of a disc player according to the present invention.

FIG. 2 is a plan view showing a main part of an example of a disc player according to the present invention.

FIG. 3 is a perspective view showing an example of a disk magazine mounted on the example shown in FIGS. 1 and 2;

FIG. 4 is a partial plan view including a partial cross section used for explaining a part of the example shown in FIGS. 1 and 2;

FIG. 5 is a schematic plan view used for explaining the operation of the example shown in FIGS. 1 and 2;

6 is a block diagram showing a configuration of a circuit system in the example shown in FIGS. 1 and 2. FIG.

FIG. 7 is a schematic side view used for explaining the operation of the example shown in FIGS. 1 and 2;

FIG. 8 is a flowchart illustrating an example of a program executed by a microcomputer used in the example of the system controller illustrated in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Lower fixed chassis 14 Disk mounting part 16 Magazine mounting part 20 Disk magazine 21 Opening 22 Box 27 Slider 32, 36 Slit 39 Feed screw member 42 Upper fixed chassis 44, 60 Motor 47 Photo sensor 50 Movable chassis 70 Disk take-out / Transport means 80, 82 Position sensor 90 Optical head 91 Read signal processing unit 100 System controller 102 Warning display unit 104 Speaker

Claims (3)

(57) [Claims] 1. A disk storage portion provided with a plurality of disk storage sections for respectively storing a disk, a disk mounting section for mounting a disk, and a disk stored in the plurality of disk storage sections. Disc mounting means for selectively mounting a disc in the mounting portion, and disc presence / absence for discriminating the presence / absence of a disc to be mounted in the disc mounting part in a selected one of the plurality of disc storage sections Discriminating means, disc correctness discriminating means for discriminating whether or not the disc mounted in the disc mounting portion is normal by the disc mounting means, and selected one of the plurality of disc storage sections by the disc mounting means After the disk selective mounting operation for When the determination output indicating that the click is not obtained,
Alternatively, when a discriminant output indicating that the disc mounted in the disc mounting portion is not normal is obtained from the disc correctness discriminating unit, the disc mounting unit should be selected next to the selected disc storage section. No disc is present in any of the plurality of disc storage sections after the disc selection mounting operation is performed for other disc storage sections and the disc mounting means is continuously performing the disc selection mounting operation. Alternatively, a disc player configured to include an operation control unit that sets a state in which a warning is issued when it is determined that none of the discs mounted in the disc mounting unit is normal. 2. The disc mounting means also performs a disc returning operation for returning the disc mounted in the disc mounting portion to a corresponding one of a plurality of disc storing sections provided in the disc storing portion, and the operation control means is provided. When a disc output indicating that the disc mounted in the disc mounting portion is not normal is obtained from the disc correctness discriminating unit, another disc to be selected next to the disc storing section selected in the disc mounting unit. 2. The disc player according to claim 1, wherein the disc returning operation is performed prior to the disc selective mounting operation for the storage section. 3. A disk loading operation for loading a disk from a selected one of a plurality of disk storage sections provided in a disk storage section, and a disk loading operation performed by the disk loading means as a disk selective loading operation. 3. A disc transporting operation for transporting the stored disc to the disc mounting portion is performed.
The described disc player.