JP2598228B2 - 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 disk player in which a disk magazine accommodating a plurality of disks is mounted, and a disk selected and taken out of the disk magazine is used for reproducing or recording information. About.

[0002]

2. Description of the Related Art In a disk player for reproducing or recording information by using a disk as a disk-shaped recording medium on which a digital information signal or the like is recorded, a plurality of disks are stored in respective storage sections (disk storage sections). The loaded disc magazine is to be mounted,
It has a disk loading operation of taking out a selected disk from the mounted disk magazine and mounting the disk in the disk mounting portion, and a disk unloading operation of performing a disk unloading operation of removing the disk from the disk mounting portion and returning the disk into the disk magazine. Things have been suggested.

In a disk player having such a disk change function, in order to perform a disk loading operation, a disk is taken out from each disk storage section of a mounted disk magazine, and the taken out disk is transported to a disk mounting portion. A disc take-out / transport mechanism is provided, and usually, the disc take-out / transport mechanism further moves the disc mounted on the disc mounting section,
An operation of transporting the disc from the disc mounting section to the disc magazine and storing it in the original disc storage section of the disc magazine, that is, a 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 disk transport operation of transporting the disk from the disk removal position to the disk mounting unit.

[0004] Then, a disk 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 ejection / transport mechanism is assumed to take the first disc ejection position in accordance with the set disc ejection mode, performs the disc ejection operation at the disc ejection position, and subsequently performs the disc transport operation. . Then, the reproduction or recording of the information on the disk transported to the disk mounting unit by the disk transport operation is completed, and the disk is unloaded, and the disk is returned to the original disk storage section. It is moved to take the next disk ejection position according to the disk ejection mode, performs the disk ejection operation again at the next disk ejection position, and then performs the disk transport operation, and repeats such an operation for each disk ejection position. Is sequentially repeated.

[0005] By repeating the disk ejecting operation at each disk ejecting position of the disk ejecting / transporting mechanism and the subsequent disk transporting operation, reproduction or recording of information on each of a plurality of disks accommodated in the disk magazine becomes possible. The discs are successively and continuously performed in an 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 reproduction or recording operation of information is undesirably interrupted as described above, in order to resume the operation, the operation for setting the reproduction or recording operation of the information on the disc player must be performed again. Inconvenience of having to do again arises.

In view of the foregoing, the present invention is directed to a disk magazine provided with a plurality of disk storage sections each storing a disk, and a plurality of disks stored in the disk magazine. Reproduction or recording of information can be performed continuously and sequentially in the order according to the set disc ejection mode, and is relatively simple.
With Do configuration, disk of the plurality of disc storage section of the disk magazine is not stored when there is an empty one, or is taken out from the disk magazine disk conveyed to the disk mounting portion, proper information Even in the case where reproduction or recording cannot be performed or a situation that is considered to be in an abnormal state occurs, it is possible to avoid a situation in which reproduction or recording operation of information to be continued is undesirably interrupted. It is an object of the present invention to provide a disc player which can be used.

[0010]

In order to achieve the above-mentioned object, a disk player according to the present invention comprises a disk magazine in which a plurality of disk storage sections each storing a disk are provided. One of a plurality of disk ejection positions corresponding to a plurality of disk storage sections of a mounting part, a disk mounting part to which a disk is mounted, and a disk magazine mounted on the magazine mounting part, and any one of the disk discharging parts is taken out. A disk ejecting / transporting mechanism for performing a disk ejecting operation for ejecting a disk from a disk storage section corresponding to a position, and a disk conveying operation for conveying a disk ejected by the disk ejecting operation to a disk mounting portion , and a disk ejecting / transporting mechanism Of a disk in the disk storage section corresponding to the disk removal position A disc presence determination means for determining, this disc is present by the disk presence determination means
After the discrimination is made, the disc eject / transport mechanism reads the disc based on the read signal from the disc transported to the disc loading section .
Discrimination means for discriminating whether the disc is normal or not, and operation control means for performing predetermined control based on discrimination output from the disc presence / absence discrimination means or disc discrimination means for the disc take-out / transport mechanism. It is comprised including. Then, when the operation control means performs a disc ejection operation at the disc ejection position where the disc ejection / transport mechanism is selected, when a discrimination output indicating that there is no disc is obtained from the disc presence / absence discrimination means, the disc ejection / transportation is performed. Causing the mechanism to take another selected disk removal position to be taken next to the selected disk removal position, and the disk removal and transport mechanism to perform a disk removal operation at the selected disk removal position and subsequent When the disc transport operation is performed and a discrimination output indicating that the disc conveyed to the disc mounting unit is not normal is obtained from the disc validity discriminating means, the conveyed disc is selected by the disc ejection / transport mechanism. After returning to the disk storage section corresponding to the disk removal position, the selected disk removal position An operation for taking another selected disk taking position to be taken next is performed, and a disk taking / conveying mechanism assumed to take another selected disk taking position is made to perform a disk taking operation. You.

[0011]

In the disk player according to the present invention as described above, when reproducing or recording information, the disk ejecting / transporting mechanism is provided with a plurality of disk ejecting units set in relation to the disk magazine mounted on the disk mounting unit. A selected one of the positions is taken, a disk removal operation is performed at the selected disk removal position, and then a disk transport operation is performed. At this time, the presence / absence of a disk in the disk storage section corresponding to the selected disk removal position at which the disk removal operation is performed is determined by the disk presence / absence determination means. It is determined whether or not the disk transported to the above is in a normal state.

When there is no disc in the disc storage section corresponding to the selected disc ejection position where the disc ejection operation by the disc ejection / transport mechanism is performed, the operation control means sends the disc to the disc ejection / transport mechanism. The operation to move to another selected disk ejection position to be taken next is performed, and a new disk ejection operation by the disk ejection / transport mechanism is performed at the other selected disk ejection position. Further, when the disc conveyed to the disc mounting unit by the disc convey operation by the disc unloading / conveying mechanism is not in a normal state, the operation control means transmits the disc to the disc unloading / conveying mechanism and firstly to the disc mounting unit. Causing the disc to return to the disc storage section corresponding to the selected disc ejection location, and then causing it to move to another selected disc ejection location to take next; At the selected disk removal position, a new disk removal operation is performed by the disk removal and transport mechanism.

Thus, the disk take-out / transport mechanism is
After performing a disk ejecting operation at another selected disk ejecting position to be taken next, a disk carrying operation is performed when a disk is ejected by that operation, and when a disk is not ejected, another operation to be taken next is performed. Is moved to the selected disc ejection position
Also, even when the ejected disk is not in a normal state, the abnormal disk is returned to the original disk storage section, and then moved to another selected disk removal position to be taken next. Can be

At this time, the data by the disc validity discriminating means is used.
The disk is taken out of the disk storage section by the disk
The disc that is ejected and transported to the disc loading section is
The discrimination of whether or not it is normal is made by the disc attached to the disc
Is performed based on the read signal from the disk,
No special discriminating element for discriminating right or wrong is required.
No. Therefore, the configuration including the disc validity judgment means is compared.
In Moto is intended manner simple, if there is an empty disc within the plurality of disc storage section of mounted disc magazine is not housed, or the disk mounting portion is removed from the disc magazine Even if the conveyed disc cannot be properly reproduced or recorded, and is not in a normal state, the reproduction or recording operation of information to be continued is undesirably interrupted. That will not happen.

[0015]

【Example】

(1) Main part mechanism and disk magazine (Fig. 1, Fig. 2,
FIGS. 3 and 4) FIGS. 1 and 2 show a mechanical configuration of an example of a disc player according to the present invention.

1 and 2 show a lower fixed chassis 10, an upper fixed chassis 42 disposed above the lower fixed chassis 10, and a lower fixed chassis 10 and an upper fixed chassis 42. The lower fixed chassis 10 is provided with a disk mounting portion 14 that is driven to rotate by a spindle motor, and a magazine mounting portion 16 is provided in the lower fixed chassis 10. Have 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 the side wall of the housing 22 of the disk magazine 20 in parallel with each other. A slider 27 is provided which is movable in a direction along the surface of the disk D stored in the section. The slider 27 is located 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.

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. A member 40 is provided upright. 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 mounted on the upper fixed chassis 42, and a large-diameter center gear 46 is 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
The transmission gear 49 is meshed with a small-diameter gear portion 49a of a transmission gear 49 that is shaft-mounted on 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
The clamp arm 53a is located at a position above
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 includes a slider driving means 55 for moving a predetermined one of the plurality of sliders 27 of the disk magazine 20 mounted on the magazine mounting portion 16 to a disk pushing position, and a magazine mounting portion. The disk D protruding outside the housing 22 from the opening 21 of the disk magazine 20 mounted on the disk 16 is taken out of the disk magazine 20, conveyed from the magazine mounting part 16 side to the disk mounting part 14, and A disk taking-out / transporting means 70 for carrying the disk D from the disk mounting part 14 to the magazine mounting part 16 side, and a disk D conveyed from the disk mounting part 14 to the magazine mounting part 16 by the disk taking-out / transporting means 70. And its edge to be pushed into one of the disk storage sections in the disk 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 are provided.

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

For example, when the motor 60 is rotated forward, the slide lever 57 is moved in the direction shown by the arrow X from the position shown by the solid line in FIG. Engaging 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.

A shaft 64 to which a gear 62 constituting a gear mechanism 59 is fixed is used as a shaft of a driving roller 71 constituting a disk take-out / transportation means 70, and a motor 60 moves a slide lever 57 to an original position. Even after the movement is stopped, the operation state is maintained, and thereafter, only the drive roller 71 is driven to rotate. 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 constitute a disk take-out / transport unit 70.

(2) Position Sensor (FIG. 1, FIG. 2, FIG. 5) The photo sensor 47, which is a position sensor attached in relation to the center gear 46, has a radial direction when the center gear 46 is rotated. A pair of through-holes 46a formed at positions opposite to each other are detected to generate a detection output pulse signal. However, after the photosensor 47 detects the through-hole 46a once, it continues until the next detection of the next through-hole 46a. During, that is,
While the center gear 46 makes a half turn, the movable chassis 50
Can be moved up and down by a distance corresponding to the disc storage section interval in the disc magazine 20 mounted on the magazine mounting section 16. Therefore, the detection output pulse signal obtained from the photo sensor 47 with the rotation of the center gear 46 is determined according to the position of the movable chassis 50 with respect to each disk storage section of the disk magazine 20 mounted on the magazine mounting section 16. Become.

Further, 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. When the disk D assumes a position where most of the disk D is inside the disk magazine 20 and only a part of the disk D projects outside the opening 21 of the disk magazine 20, as indicated by a two-dot chain line in FIG. When both of the sensors 80 and 82 are turned off, and when the position which is drawn out of the disc magazine 20 further than the position shown by the two-dot chain line as shown by the one-dot chain line in FIG. Only the position sensor 80 is turned on when a position corresponding to the disk mounting portion 14 is taken as shown by a solid line in FIG.

(3) Configuration of Circuit System (FIG. 6) FIG. 6 schematically shows a configuration of a circuit system in an example of the disk player according to the present invention having the above-described 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 on 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 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. The disc discrimination output signal Sx indicates that the disc D mounted on the disc mounting unit 14
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, the reproduction output signal S of the 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 a program information processing unit 94 to perform various kinds of processing. A reproduction program information signal, for example, an audio signal A is obtained from the program information processing unit 94 and output to an output terminal 95. On the other hand, the reproduction address data Q
Is supplied to the system controller 100.

The system controller 100 receives a disk ejection command signal C sent from the operation panel unit 101.
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.

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.

(4) Disk Unloading / Transporting Operation (FIGS. 4, 5, 6, and 7) An example of the disk player according to the present invention having the above-described mechanical configuration and circuit configuration. In one of the information reproducing operation modes, the disk magazine 20 is mounted on the magazine mounting section 16 and the reproduction of the program information from each of the plurality of disks D accommodated therein involves the automatic exchange of the disks D. In this manner, a continuous reproduction operation mode is performed, which is performed sequentially and continuously.

In order to take such a continuous reproduction operation mode, first, the disc magazine 20 is mounted on the magazine mounting section 16 and then the operation panel section 10 is mounted.
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.

After that, the operation panel unit 101 is operated, and the reproduction start command signal Cf is transmitted to the system controller 100.
To the system controller 10
From 0, the drive control signal Qa is supplied 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, the 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 dashed line in FIG. The slider 27 corresponding to the selected disk take-out position assumes the disk 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. .

Subsequently, the driving roller 71 is driven by the motor 60.
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 drive control signal Qa is again sent from the system controller 100 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 disk D mounted on the disk mounting portion 14. When the movable chassis 50 is lowered to a predetermined position, a switch (not shown) is turned on, transmission of the drive control signal Qa from the system controller 100 is stopped, and operation of the motor 44 is stopped.

Under such a condition, the first disk D
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.

Thereafter, subsequently, a drive control signal Qa is supplied from the system controller 100 to the motor drive section 96, and the motor 44 moves the movable chassis 50 from the first selected disk removal position. As the movable chassis 50 moves, the system controller 100
Is controlled 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 The means 70 is halted in such a way that it takes the selected disk ejection position in which the disk storage section for the next disk D to be ejected, ie the second disk D, becomes the corresponding one. Then, after such a state is established, the same operations as the above-described pull-out operation, transport operation, and information reproduction operation with respect to the first disk D are performed on the second disk D. The same operation is sequentially repeated for each of the subsequent disks D.

On the other hand, for example, when the first disk D is not stored in the disk storage section corresponding to the disk removal position selected first, the pull-out operation for the first disk D is performed as described above. Is performed, the first disk D takes a position as shown by a dashed line in FIG. 5, so that a state where the position sensor 82 is turned on cannot be obtained. At this time, the system controller 100 sends the drive control signal Qb to operate the motor 60, and moves the slide lever 57 from the position shown by the solid line to the position shown by the dashed line in FIG. After the slider 27 corresponding to the selected disk take-out position is assumed to assume the disk push-out position, the detection output signal SPc from the position sensor 82 is maintained even after a predetermined time of, for example, about 5 seconds has elapsed. It is detected that the position sensor 82 does not indicate that it has been turned on, thereby detecting that there is no first disk D. That is, the position sensor 82 is a means for determining the presence or absence of the disk D in the disk storage section corresponding to the selected disk removal position taken by the disk removal / transportation means 70. The signal SPc is an output signal for discriminating the presence or absence of the disk D.

When the system controller 100 detects that there is no first disc D based on the detection output signal SPc from the position sensor 82, the system controller 100
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 first selected disk removal position to remove the disk.
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 disk D to be taken out is not in the corresponding disk storage section, a state is taken in which the take-out operation is automatically performed for the disk D to be taken out next. Each disk D
Is not interrupted.

Further, for example, the disk take-out / transportation 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. When the disc discrimination output signal Sx is supplied to the system controller 100, the system controller 100 causes the motors 44 and 60 to take out the first disc D from the disc magazine 20 and send it to the disc mounting unit 14. The movable chassis 50 is rotated in the opposite direction to the mounting, and the driving roller 71 constituting the movable chassis 50 and the disk take-out / transportation means 70 is driven.
Is the first disk D
The first disk D is returned to the original disk storage section in such a state that the selected disk ejection position corresponding to the disk storage section corresponding to the above is taken.

Subsequently, the drive control signal Qa is sent from the system controller 100 to the motor drive section 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 in the disk magazine 20 mounted on the magazine mounting section 16. Or the discs D stored in the plurality of disc storage sections of the disc magazine 20 mounted on the magazine mounting section 16
If it is determined that the reading is not in a normal state where proper reading by 0 is not performed, the display control signal Da and the speaker control signal Db are transmitted from the system controller 100 to the warning display unit 102 and the speaker driving unit 103. Supplied respectively. Thereby, a warning display is performed by the warning display unit 102, and a warning sound is emitted from the speaker 104.

(5) Disk Ejection Operation Control by System Controller (FIG. 8) The disk ejection operation control performed as described above is controlled by a microcomputer built in the system controller 100, for example. However, an example of a program executed by the microcomputer in controlling the disk ejection operation will be described below with reference to the flowchart of FIG.

In the disk ejection operation control by the program shown in FIG. 8, each of the disks D accommodated in the disk magazine 20 is sequentially taken out in the arrangement order of a plurality of disk accommodation sections in the disk magazine 20. Of the disk storage sections are associated with addresses 1 to 10 in the arrangement order. 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 the process 112, the address flag N is set to an address n representing the disk storage category of the first disk D determined based on the disk ejection 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 disk removal / transport unit 70 to perform the disk transport operation following the disk removal operation, and thereafter, the drive control signal Qa is transmitted to the motor drive unit 96. The movable chassis 50 is supplied to lower the movable chassis 50, and the disk D transported by the disk unloading / transporting means 70 is placed on the disk mounting portion 14, and is in a state of being restrained 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. As a result of this determination, when the disk D mounted on the disk mounting unit 14 is in a normal state, in a process 117, information is reproduced from the disk D mounted on the disk mounting 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, a disk ejection operation for extracting a disk from the disk storage section corresponding to the address represented by N set in the process 122 or 123, that is, the next address or the first address, 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.
If the error flag E is 10, the magazine mounting section 16
The disk D is not stored in any of the plurality of disk storage sections of the disk magazine 20 mounted on the disk magazine 20, or the disk D stored in the disk magazine 20 mounted on the magazine mounting section 16 is not the optical head 90. Therefore, the process proceeds to a process 126, in which the display control signal Da is supplied to the warning display unit 102 to perform a warning display. ,
The loudspeaker control signal Db is supplied to the loudspeaker driving unit 103 to cause the loudspeaker 104 to generate a warning sound, and the control is terminated.

(6) Modified Example In the above example, information is reproduced from the disc taken out of the disc magazine. However, the disc player according to the present invention is adapted to play the disc taken out of the disc magazine. Information may be recorded, and in such a case, the same disc ejection operation control as in the above-described example is performed.

[0058]

As is apparent from the above description, according to the disk player of the present invention, each of the plurality of disks stored in the disk magazine provided with a plurality of disk storage sections each storing a disk is provided. Can be taken in a continuous operation mode in which the information reproduction or recording of the disk magazine is sequentially and continuously performed according to the set disk removal order, and the empty disk in which the disk is not stored in the plurality of disk storage sections of the disk magazine. If there is a disc, or if the disc taken out of the disc magazine and transported to the disc loading section cannot perform proper information reproduction or recording or becomes abnormal, Playback or recording can be continued for discs Live or recording operation can be avoided that would be interrupted undesirably.

[Brief description of the 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;

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

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 (1)

(57) [Claims] 1. A magazine mounting portion for mounting a disk magazine having a plurality of disk storage sections each storing a disk therein, a disk mounting portion for mounting a disk, and a mounting portion for mounting on the magazine mounting portion. Taking out any one of a plurality of disk ejection positions respectively corresponding to the plurality of disk storage sections of the selected disk magazine, and taking out a disk from the disk storage section corresponding to any one of the disk extraction positions; and A disc ejecting / transporting mechanism for carrying out a disc carrying operation for carrying the disc taken out by the ejecting operation to the disc loading section, and discriminating presence / absence of a disc in a disc storage section corresponding to a disc ejecting position taken by the disc ejecting / transporting mechanism a disc presence determination means for, by the disc presence determination means Determine that the disk is there
After being different, the read signal from the disk is conveyed to the disk mounting portion by the disk takeout and transfer mechanism
Means for determining whether the disk is normal based on whether the disk is normal or not, and the disk take-out / transport mechanism takes a selected one of the plurality of disk take-out positions, and selects the disk at the selected disk take-out position. When performing the above-described disc ejection operation, when a discrimination output indicating that there is no disc is obtained from the disc presence / absence discrimination means, the disc ejection / transport mechanism is required to take the next disc ejection position after the selected disc ejection position. And the disk ejecting / transporting mechanism performs the disk ejecting operation at the selected disk ejecting position and the disk transporting operation following the disk ejecting operation. At this time, it is indicated that the disc conveyed from the disc validity discriminating means to the disc mounting portion is not normal. When the discrimination output is obtained, after returning the transported disk to the disk storage section corresponding to the selected disk removal position,
An operation for taking another selected disk take-out position to be taken next to the selected disk take-out position, and the above-mentioned disk take-out / transport mechanism taking the other selected disk take-out position disk player that will be configured to include an operation control means for causing the disc takeout operation, to.