JP3626034B2 - Slot-in type optical disk playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a slot-in type optical disc reproducing apparatus, and more particularly to a slot-in type optical disc reproducing apparatus that can reliably eject even a non-standard optical disc.
[0002]
[Prior art]
There is a slot-in type CD player in which a normal CD having a diameter of 12 cm or a single CD having a diameter of 8 cm can be directly inserted from a slot portion without being placed on a tray. FIG. 9 shows a configuration centering on a slot-in type loading portion of a conventional slot-in type CD player. Reference numeral 1 denotes a front panel, which is provided with a slot portion 4 for taking in and out a normal CD2 of 12 cm or a single CD3 of 8 cm. Of CD2 or single CD3, 2a or 3a is a central hole, and 2b or 3b is a signal recording surface area on which a signal is recorded, and has a property of reflecting light. 2c or 3c is a transparent area between the center hole 2a or 3a and the innermost circumference of the signal recording surface area 2b or 3b, and 2d or 3d is between the outermost circumference of the signal recording surface area 2b or 3b and the outermost circumference of the disk. It is a narrow transparent area.
[0003]
Reference numeral 5 denotes a turntable as a rotating portion that is rotated by a spindle motor (not shown) mounted on a chassis (not shown), and a central projection 2a or 3a of CD2 or single CD3 is detachably fitted in the center. Part 6 is formed. Reference numeral 7 denotes an optical pickup which irradiates the signal recording surface area 2b or 3b with a laser beam while moving in the radial direction of the disk under the CD2 or single CD3 loaded on the turntable 5 and rotated at a predetermined linear velocity. Then, the reflected beam is captured and a light detection signal is output. An RF signal is generated from the photodetection signal by a head amplifier (not shown), and further, the signal processing unit demodulates the music data.
[0004]
10 is a slot-in type loading mechanism that operates on a chassis (not shown), 11 is a loading motor that is coupled to the slot-in type loading mechanism 10 to generate a driving force, and 12 is a driving unit that drives the loading motor 11. These three members constitute a slot-in type loading unit. When the slot-in type loading mechanism unit 10 is loaded and driven by the forward rotation of the loading motor 11 from the disk ejection completion state, the CD2 or single CD3 inserted from the slot unit 4 is moved onto the internal turntable 5. After that, the loading operation is performed in which the center hole 2a or 3a is fitted into the convex portion 6 of the turntable 5 so that the disk is loaded. On the other hand, when unloading is driven by the reverse rotation of the loading motor 11 from the disk loaded state, the CD 2 or the single CD 3 is raised and the central hole 2a or 3a is detached from the convex portion 6 of the turntable 5, and then the slot portion 4 The unloading operation to move in the direction is performed.
[0005]
Reference numeral 13 denotes a disk detection unit mounted on a chassis (not shown), which includes a pair of light emitting elements 14 and light receiving elements 15. The disc detector 13 is installed at a distance of 10 cm, which is intermediate between the radius of CD2 and the radius of single CD3, in the direction of the slot 4 straight when viewed from the center of the turntable 5, and is directly above the CD2 or single CD3. When the signal recording surface area 2b or 3b comes, the light emitted from the light emitting element 14 through the opening (not shown) provided in the slot-in type loading mechanism 10 is the CD2 or single CD3 signal recording surface area 2b or 3b. Is received by the light receiving element 15, and an H level detection signal A indicating the presence of a disk is output from the light receiving element 15. When there is no CD2 or single CD3 signal recording surface area 2b or 3b directly above the disk detector 13, the light emitted from the light emitting element 14 is not received by the light receiving element 15, and the L level indicating that there is no disk from the light receiving element 15. Detection signal A is output. The detection output of the disk detector 13 when the disk is loaded on the turntable 5 indicates the disk size (12 cm for H level and 8 cm for L level). When CD2 or single CD3 is unloaded, the locus of the intersection of the optical axis of light emitting element 14 and CD2 or single CD3 is arranged so as to cross the center of center hole 2a or 3a.
[0006]
A slot 16 mechanically closes the contact when the slot-in type loading mechanism 10 completes the loading operation, detects completion of loading of the CD2 or single CD3 on the turntable 5, and outputs an H level detection signal B. A completion detection unit. Note that the center hole 2a or 3a of the CD2 or single CD3 is fitted into the convex portion 6 of the turntable 5 before the slot-in type loading mechanism 10 completes the loading operation, so that the loading is completed.
[0007]
Reference numeral 17 denotes a first disk discharge detection unit mounted on the chassis, which is composed of a pair of light emitting elements 18 and light receiving elements 19. The first disk discharge detection unit 17 is for detecting that 12 cm of CD2 has reached a predetermined discharge position, and is separated from the center of the turntable 5 by a predetermined distance in an oblique direction on the slot portion 4 side. During the unloading operation, the light-emitting element 18 passes through an opening (not shown) provided in the slot-in type loading mechanism 10 while the signal recording surface area 2b of the CD 2 is present directly above the unloading operation. The light emitted from the light is reflected by the signal recording surface area 2b of the CD 2 and then received by the light receiving element 19, and an H level detection signal C indicating that the disc has not reached the ejection position is output from the light receiving element 19. . When the unloading operation proceeds and CD2 comes out of the slot part 4 by about half, the edge of CD2 comes directly above the first disk ejection detection part 17, and the signal recording of CD2 on the optical axis of the light emitting element 18 occurs. The region 2b is not present, the light emitted from the light emitting element 18 is not received by the light receiving element 19, and an L level detection signal C indicating that the disc has reached the ejection position is output from the light receiving element 19.
[0008]
Reference numeral 20 denotes a second disk discharge detection unit mounted on the chassis, and is composed of a pair of light emitting elements 21 and light receiving elements 22. The second disk discharge detection unit 20 is for detecting that an 8 cm single CD 3 has reached a predetermined discharge position. The second disk discharge detection unit 20 has a predetermined distance in a diagonal direction on the slot 4 side when viewed from the center of the turntable 5. The signal recording surface area 3b of the single CD 3 is located directly above the unloading operation, and through an opening (not shown) provided in the slot-in type loading mechanism 10. The light emitted from the light emitting element 21 is reflected by the signal recording surface area 3b of the single CD3 and then received by the light receiving element 22, and the H level detection signal D indicating that the disc has not reached the ejection position from the light receiving element 22. Is output. When the unloading operation proceeds and the single CD 3 comes out from the slot part 4 by about half, the edge of the single CD 3 comes directly above the second disk ejection detection unit 20 and the single CD 3 is on the optical axis of the light emitting element 21. The signal recording surface area 3b is not present, the light emitted from the light emitting element 21 is not received by the light receiving element 22, and an L level detection signal D indicating that the disc has come to the ejection position from the light receiving element 22 is generated. Is output.
[0009]
Reference numeral 23 denotes an operation unit having various operation keys such as an eject key, a PLAY key, and a STOP key for performing an eject operation. Reference numeral 24 denotes a control unit having a microcomputer configuration that controls the overall control of the player. When a single CD 3 is inserted from the slot part 4, the slot-in type loading part is controlled to perform the loading operation. Conversely, when the eject key is pressed and the ejection operation is performed in the disk loading state, the slot-in type loading is performed. The unloading operation is performed by controlling the unit. Further, when the PLAY key is pressed while the disc is loaded, the control unit 24 controls the reproduction system including the optical pickup 7, the head amplifier (not shown) and the signal processing unit while rotating the turntable 4 by the spindle motor to control the CD2 or the single. Play CD3.
[0010]
FIGS. 10 and 11 are flowcharts showing the control processing of the control unit 24, and FIGS. 12 to 17 are explanatory diagrams of the loading / unloading operation. Hereinafter, referring to these drawings, the loading / unloading operation in the slot-in CD player will be described. An unloading operation will be described. First, as shown in FIG. 9, it is assumed that CD2 or single CD3 is not loaded in the turntable 5, and A to D are all at the L level.
[0011]
When the user inserts CD2 or single CD3 from the slot 4 and the signal recording surface area 2b or 3b comes on the disc detector 13 and the light emitted from the light emitting element 14 is received by the light receiving element 15, An H level detection signal A indicating the presence of a disk is output from the light receiving element 15 (see FIG. 12 (1) or FIG. 15 (1)). When the detection signal A becomes H level, the control unit 24 determines that a disc has been inserted (YES in step S10 in FIG. 10), and controls the drive unit 12 to rotate the loading motor 11 at a constant speed, thereby causing the slot-in. The type loading mechanism unit 10 is loaded (step S11). As a result, the CD 2 or the single CD 3 is moved from the slot portion 4 to the turntable 5, and the center hole 2a or 3a is fitted into the convex portion 6 (see FIG. 12 (2) or FIG. 15 (2). CD2 or single CD3 is chucked by a chucking mechanism unit (not shown) linked to the in-type loading mechanism unit 10). Thereafter, the contact of the loading completion detection unit 16 is closed in conjunction with the loading operation of the slot-in type loading mechanism unit 10 and an H level detection signal B indicating the completion of disk loading is output.
[0012]
When the detection signal B becomes H level, the control unit 24 determines that the disc loading is completed (YES in step S12), controls the driving unit 12 to stop the loading motor 11, and controls the slot-in type loading mechanism unit 10. The loading drive is stopped, and the loading operation of the slot-in type loading mechanism unit 10 is stopped (step S13). At this time, the detection signal A input from the disk detector 13 is checked to determine the size of the disk loaded this time, and the determination result is stored as SIZE data (step S14). Specifically, when A is at the H level, it is stored as SIZE data = 12 cm, and when A is at the L level, it is stored as SIZE data = 8 cm. When the loading of the CD 2 into the turntable 5 is completed in this way, the signal recording surface area 2b comes directly above the first disk discharge detection unit 17 and the second disk discharge detection unit 20, and is emitted from the light emitting element 18. The received light is received by the light receiving element 19, and an H level detection signal C is output from the light receiving element 19. Similarly, the light emitted from the light emitting element 21 is received by the light receiving element 22 and from the light receiving element 22. An H level detection signal D is output (see FIG. 12B). When the loading of the single CD 3 onto the turntable 5 is completed, the signal recording surface area 3b does not come directly above the first disc ejection detection unit 17, but the signal recording surface just above the second disc ejection detection unit 20. The region 3b comes and the light emitted from the light emitting element 18 is not received by the light receiving element 19, the L level detection signal C is output from the light receiving element 19, and the light emitted from the light emitting element 21 is received by the light receiving element 22. Is received, and an H level detection signal D is output from the light receiving element 22 (see FIG. 15 (2)).
[0013]
Thereafter, when the PLAY key is pressed in the operation unit 23, the control unit 24 rotates the turntable 5 by the spindle motor, and the CD2 or single CD3 is read from the head by the optical pickup 7, the head amplifier (not shown), and the reproduction system of the signal processing unit. Reproduction is performed until the end of CD2 or single CD3 is completed or the STOP key is pressed (steps S15 to S19).
[0014]
When the user wants to remove the CD 2 or the single CD 3 loaded on the turntable 5 while the reproduction of the disc is stopped, the user presses the eject key of the operation unit 23 to perform the eject operation. Then, the control unit 24 determines YES in step S20, and proceeds to the flow of FIG. If an eject operation is performed during the reproduction of the disc, the reproduction is stopped and then the flow proceeds to the flow of FIG. 11 (YES in step S21, S22). In the flow of FIG. 11, first, the drive unit 12 is controlled to reverse the loading motor 11 at a constant speed, and the slot-in type loading mechanism unit 10 starts unloading driving (step S30). First, the chucking by the chucking mechanism is released in conjunction with the unloading operation of the slot-in type loading mechanism 10. Subsequently, CD2 or single CD3 is raised by the unloading operation of the slot-in type loading mechanism 10 and the center hole 2a or 2b is disengaged from the convex portion 6 of the turntable 5 (at this stage, the contact point of the loading completion detection unit 16) Opens, and the detection signal B falls to L level). Next, the CD 2 or the single CD 3 moves straight in the direction of the slot portion 4.
[0015]
After the step S30, if the SIZE data determined and stored at the time of loading the disc is 12 cm, the control signal 24 from the first disc ejection detecting unit 17 indicates that the disc has reached the ejection position. Wait until it reaches L level (steps S31 and S32). When C becomes L level, it is judged that 12cm CD2 has been completely discharged (see FIG. 13 (1)), and after waiting for 130 ms to elapse, it is driven. The loading motor 11 is stopped by controlling the unit 12, the unloading drive for the slot-in type loading mechanism unit 10 is stopped, and the unloading operation of the slot-in type loading mechanism unit 10 is stopped (steps S34 and S35). As a result, the CD2 of 12 cm is completely discharged, and almost half of the CD2 comes out of the slot portion 4 (see FIG. 13B). At this time, the signal recording surface area 2b is located above the disc detection unit 13 and the second disc ejection detection unit 20, and the detection signals A and D are at the H level.
[0016]
On the other hand, if the SIZE data discriminated and stored when the disc is loaded is 8 cm, the detection signal D of the second disc ejection detection unit 20 becomes L level indicating that the disc has reached the ejection position. (Steps S31 and S33), when D becomes L level, it is determined that the discharge of the 8 cm single CD3 is completed (see FIG. 16 (1)), and after waiting for 130 ms, the drive unit 12 is controlled. Then, the loading motor 11 is stopped, and the unloading operation of the slot-in type loading mechanism unit 10 is stopped (steps S34 and S35). Thereby, the discharge of the single CD3 of 8 cm is completed, and almost half of the single CD3 comes out of the slot portion 4 (see FIG. 16 (2)). At this time, the signal recording surface area 3b comes on the disk detection unit 13 so that the detection signal A becomes H level.
[0017]
After the ejection of CD2 or single CD3 is completed, the control unit 24 detects all of the detection signals A, C and D from the disc detection unit 13, the first disc ejection detection unit 17, and the second disc ejection detection unit 20 at the L level. The check of whether or not the detection signal C or D from the first disk discharge detection unit 17 or the second disk discharge detection unit 20 rises from the L level to the H level is repeated (steps S36 and S37). When the user removes the CD 2 or the single CD 3 after the completion of the ejection from the slot portion 4, at least one of the detection signals A, D, or C becomes L level indicating that there is no disc, so the control unit 24 sets YES in step S36. The process returns to step S10 in FIG. 10, and waits for a new CD2 or single CD3 to be inserted.
In order to listen to the CD2 or single CD3 once ejected by the user, the CD2 or single CD3 is pushed into the slot portion 4, and the signal recording surface area 2b or 3b of the CD2 or single CD3 is detected as the first disc ejection. When the unit 17 or the second disc ejection detection unit 20 is reached, either the detection signal C or D rises from the L level to the H level (see FIG. 14 or FIG. 17). Then, the control unit 24 determines YES in step S37, proceeds to step S11 in FIG. 10, and performs a loading operation in exactly the same manner as described above.
[0018]
[Problems to be solved by the invention]
By the way, in the CD, as indicated by reference numeral 30 in FIG. 18 (1), the signal is recorded only in the same range as the single CD3 of 8 cm, but the size is called a cool CD of 12 cm which is the same as the normal CD2. There are non-standard ones. A center hole 30a that is detachably fitted to the convex portion 6 of the turntable 5 is opened at the center of the cool CD 30 as well. Further, the outer side of the center hole 30a is a transparent area 30c up to a radius of 20mm, and the outer side of the transparent area 30c is a signal recording surface area 30b up to a radius of 38mm. The outside of the signal recording surface area 30b is all transparent area 30d. It has become.
[0019]
When this cool CD 30 is inserted into the above-described slot-in type CD player, when the signal recording surface area 30b comes on the disc detector 13 and the detection signal A becomes H level (see FIG. 19 (1)), the rest Under the control of the control unit 24, a loading operation is performed in substantially the same manner as a normal CD 2 cm of 12 cm, and a disk is loaded as shown in FIG. 19 (2). Since the transparent region 30d has come, the light emitted from the light emitting element 14 is not reflected and does not enter the light receiving element 15, so the SIZE data is 8 cm. Therefore, the unloading operation is performed in substantially the same manner as that of the single CD 3 of 8 cm, and when the unloading operation is stopped, it becomes as shown in FIG. 20 and a part goes out from the slot portion 4, so that the user can take out the cool CD 30.
[0020]
However, in the cool CD, as indicated by reference numeral 31 in FIG. 18 (2), a center hole 31a that is detachably fitted to the convex portion 6 of the turntable 5 is opened at the center, and the outside of the center hole 31a. The transparent area 31c has a radius of up to 20 mm, the signal recording area 31b has a radius of 38mm outside the transparent area 31c, and the outside of the signal recording area 31b is a transparent area 31d. Some of them protrude beyond 31c and 31d and have a label 32 attached.
[0021]
Since the label 32 functions as a reflection surface for light, when the cool CD 31 is inserted into the slot-in CD player, the signal recording surface area 31b or the label 32 comes on the disc detection unit 13 and the detection signal A is H. When the level is reached (see FIG. 21 (1)), the loading operation is performed in the same manner as a normal CD2 of 12 cm under the control of the control unit 24. Here, for example, when the disc is in the loaded state as shown in FIG. 21 (2), the label 32 comes on the disc detection unit 13 in the size determination at the completion of the disc loading, so that the light emitted from the light emitting element 14 is reflected. Since it is incident on the light receiving element 15, the SIZE data becomes 12 cm. Then, the unloading operation is stopped when 130 ms elapses after the first disc ejection detection unit 17 detects that the disc has reached the ejection position and the detection signal C becomes L level, as in the case of 12 cm CD2. Will be. For example, when the state of the cool CD 31 at the time of the eject operation is as shown in FIG. 22 (1) and the label 32 is not on the disc detection unit 13, the unloading operation is started immediately after the unloading operation starts. Since it stops, the cool CD 31 remains in the set and cannot be taken out (see FIG. 22 (2)). The same problem occurs when a picture is drawn in the area where the label 32 is attached instead of the label.
An object of the present invention is to provide a slot-in type optical disk reproducing apparatus that can prevent removal of a nonstandard optical disk even when a nonstandard optical disk is inserted.
[0022]
[Means for Solving the Problems]
In the slot-in type optical disc reproducing apparatus according to the first aspect of the present invention, the slot portion for inserting and removing the optical disc, the rotating portion for rotating the optical disc to read the recording signal, and moving the optical disc from the slot portion to the rotating portion. The loading operation of the loading unit and the unloading operation of moving and ejecting the optical disc from the rotating unit to the slot unit and the loading operation of the slot-in type loading unit causes the optical disc to be loaded into the rotating unit. A loading detection unit for detecting this, a discharge detection unit for detecting that the optical disk has reached a predetermined discharge position by the unloading operation of the slot-in type loading unit, and an optical disk from the slot unit when the optical disk is not loaded Is inserted, the slot-in type loading part is controlled. Then, the loading operation is started, the loading operation is stopped when the loading detection unit detects that the optical disk is loaded, and conversely, when the ejection operation unit is ejected with the optical disk loaded, A loading control unit that controls the slot-in type loading unit to start the unloading operation and stops the unloading operation when the ejection detection unit detects that the optical disk has reached the ejection position. In this case, the loading control unit controls the slot-in type loading unit to start the unloading operation by the ejection operation in the ejection operation unit when the optical disk is loaded, and the ejection detection unit confirms that the optical disk has reached the ejection position. After stopping the unloading operation when it is detected and ejecting the optical disc, Further, when the ejection operation is performed by the ejection operation unit, the unloading operation is continued by controlling the slot-in type loading unit while the ejection operation is being performed.
According to the slot-in type optical disc reproducing apparatus of the first aspect, when the eject operation unit is operated with the optical disc loaded, the slot-in type loading unit is controlled to start the unloading operation. When it is detected that the optical disk has reached the ejection completion position, the unloading operation is stopped. As a result, the optical disc conforming to the standard can be reliably discharged from the slot portion to the outside. If the amount of ejected optical disk is insufficient due to non-standard reasons, etc., if the eject operation is further performed, the unloading operation will continue while the eject operation is being performed. Thus, the optical disk can be surely removed.
In the slot-in type optical disc reproducing apparatus according to claim 2, in the apparatus according to claim 1, the loading control unit includes: When the optical disk is loaded, the ejection operation unit controls the slot-in type loading unit to start the unloading operation. When the ejection detection unit detects that the optical disk has reached the ejection position, the unloading operation is performed. After stopping and completing ejection of the optical disc Further, when the ejection operation is further performed by the ejection operation unit, the slot-in type loading unit is controlled to continue the unloading operation while the ejection operation is performed only within a predetermined time. It is a feature.
This When the optical disk is loaded, the ejection operation unit controls the slot-in type loading unit to start the unloading operation. When the ejection detection unit detects that the optical disk has reached the ejection position, the unloading operation is performed. After stopping and completing ejection of the optical disc Furthermore, since the continuation time of the unloading operation that is performed when the ejection operation is performed in the ejection operation unit is limited within a predetermined fixed time, the optical disk is completely ejected from the slot unit even if the ejection operation is continued excessively. There is nothing.
In the slot-in type optical disc reproducing apparatus according to claim 3 of the present invention, a slot portion for loading and unloading a plurality of sizes of optical discs, a rotary portion for rotating the optical disc to read a recording signal, and the slot portion to the rotary portion A slot-in type loading unit that performs a loading operation for moving and loading an optical disc and an unloading operation for moving and ejecting the optical disc from the rotating unit to the slot unit, a size detecting unit that detects the size of the optical disc, and a slot-in type loading A loading detection unit for detecting that the optical disk is loaded in the rotating unit by the loading operation of the unit, and a predetermined size according to the size by the unloading operation of the slot-in type loading unit provided for each size. Multiple discharge detection to detect when it is at the discharge position And when the optical disk is inserted from the slot part when the optical disk is not loaded, the slot-in type loading part is controlled to start the loading operation, and the loading detection part detects that the optical disk is loaded in the rotating part. If the loading operation is stopped at the place where the ejection operation is performed by the ejection operation unit with the optical disc loaded, the slot-in loading unit is controlled to start the unloading operation, and according to the size detected by the size detection unit. A loading control unit that stops the unloading operation when the ejection detection unit detects that the optical disk has reached the ejection position. The above Loading section When the eject operation unit is in the loaded state of the optical disc, the slot-in loading unit is controlled to start the unloading operation, and the optical disc comes to the ejection position by the ejection detection unit according to the size detected by the size detection unit. After the unloading operation is stopped and the ejection of the optical disc is completed, When the ejection operation is further performed by the ejection operation unit, the unloading operation is continued by controlling the slot-in type loading unit while the ejection operation is being performed.
According to the slot-in type optical disc reproducing apparatus of the third aspect, when the eject operation unit is operated with the optical disc loaded, the slot-in type loading unit is controlled to start the unloading operation. The unloading operation is stopped when it is detected by the discharge detection unit corresponding to the detected size that the optical disk has reached the discharge position. As a result, optical disks of various sizes according to the standard can be reliably ejected from the slot portion to the outside. If the amount of ejected optical disk is insufficient due to non-standard reasons, etc., if the eject operation is further performed, the unloading operation will continue while the eject operation is being performed. Thus, the optical disk can be surely removed.
In the slot-in type optical disc reproducing apparatus according to claim 4, in the apparatus according to claim 3, the loading control unit includes: When the optical disk is loaded, the ejection operation unit controls the slot-in type loading unit to start the unloading operation. When the ejection detection unit detects that the optical disk has reached the ejection position, the unloading operation is performed. After stopping and completing ejection of the optical disc When the ejection operation unit is further ejected after completion of the ejection of the optical disc, the unloading operation is continued by controlling the slot-in type loading unit while the ejection operation is performed only within a predetermined time period. It is characterized by that.
This When the optical disk is loaded, the ejection operation unit controls the slot-in type loading unit to start the unloading operation. When the ejection detection unit detects that the optical disk has reached the ejection position, the unloading operation is performed. After stopping and completing ejection of the optical disc Furthermore, since the continuation time of the unloading operation that is performed when the ejection operation is performed in the ejection operation unit is limited within a predetermined fixed time, the optical disk is completely ejected from the slot unit even if the ejection operation is continued excessively. There is nothing.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Next, one embodiment of the present invention will be described with reference to FIG.
FIG. 1 is a block diagram of a slot-in type CD player according to the present invention. The same components as those in FIG. 9 are denoted by the same reference numerals.
Reference numeral 24A denotes a control unit having a microcomputer configuration that controls the overall control of the player. A normal CD having a diameter of 12 cm (see reference numeral 2 in FIG. 9), a single CD 3 having a diameter of 8 cm, and a diameter of 12 cm when no disk is loaded. When various CDs such as a cool CD 31 (or reference numeral 30 in FIG. 18) having the same signal recording area as the single CD are inserted from the slot part 4, the slot-in type loading mechanism part 10, the loading motor 11, and the drive part The slot-in type loading unit consisting of 12 is controlled to perform a loading operation, and the turntable 5 is loaded. On the other hand, when the eject key is pressed and the ejection operation is performed in the disk loaded state, the slot-in type loading unit is controlled to perform the unloading operation, and the disk is ejected to a predetermined position according to the disk size. Further, when the PLAY key is pressed while the disk is loaded, the control unit 24A controls the reproduction system including the optical pickup 7, a head amplifier (not shown) and a signal processing unit while rotating the turntable 5 by the spindle motor, thereby reproducing the disk. To do.
[0024]
The control unit 24A performs the unloading operation once in accordance with the eject operation. When the ejection operation is performed again after the ejection is completed, the control unit 24A controls the slot-in type loading unit to perform the unloading operation while the eject operation is performed. The unloading operation is stopped when the ejection operation is completed. As a result, even a disc that has not been ejected to the correct position due to a non-standard cool CD or the like can be ejected in a desired amount, so that it cannot be taken out.
The other components in FIG. 1 are configured in exactly the same way as in FIG.
[0025]
2 and 3 are flowcharts showing the control processing of the control unit 24A, and FIGS. 4 to 7 are explanatory diagrams of the unloading operation. Hereinafter, referring to these drawings, loading / unloading in the slot-in CD player will be described. The operation will be described. First, it is assumed that the turntable 5 is in a state in which no disk is loaded, and A to D are all at the L level.
[0026]
(1) In the case of the cool CD 30 having no light reflecting portion other than the signal recording surface area
The user inserts the cool CD 30 shown in FIG. 18 (1) from the slot portion 4, and the light emitted from the light emitting element 14 is received by the light receiving element 15 when the signal recording surface area 30 b comes on the disk detecting section 13. Then, an H level detection signal A indicating the presence of the disk is output from the light receiving element 15 (see FIG. 19 (1)). When the detection signal A becomes H level, the control unit 24A determines that a disc has been inserted (YES in step S40 in FIG. 2), and controls the drive unit 12 to rotate the loading motor 11 at a constant speed, thereby causing the slot-in. The loading drive to the type loading mechanism unit 10 is started, and the slot-in type loading mechanism unit 10 is started to perform a loading operation (step S41). As a result, the cool CD 30 is moved from the slot portion 4 to the turntable 5, and the center hole 30a is fitted into the convex portion 6 so that the disc is loaded (see FIG. 19 (2)). The cool CD 30 is chucked by a chucking mechanism unit (not shown) linked to the unit 10). Thereafter, the contact of the loading completion detection unit 16 is closed in conjunction with the loading operation of the slot-in type loading mechanism unit 10 and an H level detection signal B indicating the completion of disk loading is output.
[0027]
When the detection signal B becomes H level, the control unit 24A determines that the disk loading is completed (YES in step S42), controls the drive unit 12 to stop the loading motor 11, and controls the slot-in type loading mechanism unit 10. The loading drive is stopped, and the loading operation of the slot-in type loading mechanism 10 is stopped (step S43). At this time, the detection signal A input from the disk detector 13 is checked to determine the size of the currently loaded disk, and the determination result is stored as SIZE data (step S44). Here, since the upper side of the disk detection unit 13 is the transparent region 30d, the light emitted from the light emitting element 14 does not enter the light receiving element 15, and A becomes L level, so SIZE data = 8 cm. Thus, when the loading of the cool CD 30 onto the turntable 5 is completed, the signal recording surface area 30b comes directly above the second disk discharge detection unit 20, and the light emitted from the light emitting element 21 is received by the light receiving element 22. Light is received, and an H level detection signal D is output from the light receiving element 22 (see FIG. 19 (2)).
[0028]
Thereafter, when the PLAY key is pressed at the operation unit 23, the control unit 24A rotates the turntable 5 at a constant linear speed by the spindle motor, and the cool CD 30 is played by the optical pickup 7, a head amplifier (not shown), and the reproduction system of the signal processing unit. Playback is started from the beginning, and playback is stopped to the end or when the STOP key is pressed (steps S45 to S49).
[0029]
When the user wants to take out the cool CD 30 loaded in the turntable 5, the user presses the eject key of the operation unit 23 to perform the eject operation. Then, the control unit 24A determines YES in step S50, and proceeds to the flow of FIG. If an eject operation is performed during the reproduction of the disc, the reproduction is stopped and the process proceeds to the flow of FIG. 3 (YES in step S51, S52). In the flow of FIG. 3, first, the drive unit 12 is controlled to start the reverse rotation driving of the loading motor 11, the unloading drive to the slot-in type loading mechanism unit 10 is started, and the unloading operation of the slot-in type loading mechanism unit 10. Is started (step S60). First, the chucking by the chucking mechanism is released in conjunction with the unloading operation of the slot-in type loading mechanism 10. Subsequently, due to the unloading operation of the slot-in type loading mechanism unit 10, the cool CD 30 is raised and the center hole 30a is disengaged from the convex portion 6 of the turntable 5 (at this stage, the contact of the loading completion detection unit 16 is opened and detected) Signal B falls to L level). Next, the cool CD 30 moves straight in the direction of the slot portion 4.
[0030]
After the step S60, the size of the SIZE data discriminated and stored when the control unit 24A is loaded is 8 cm. Therefore, the detection signal D of the second disc ejection detection unit 20 for small size indicates that the disc has reached the ejection position. (Steps S61 and S63). When D becomes L level, it is determined that the disk has come to the ejection position, and after waiting for 130 ms, the drive unit 12 is controlled to stop the loading motor 11, and the slot-in type loading mechanism unit 10 is stopped. The unloading drive is stopped to stop the unloading operation (steps S64 and S65). As a result, almost half of the cool CD 30 is ejected from the slot portion 4 to the outside, and the user cannot be removed (see FIG. 4A). By taking a waiting time of 130 ms in step S64, the signal recording surface area 30b is positioned away from the second disk discharge detection unit 20, and even if vibration occurs, the second disk discharge detection unit 20 erroneously operates. It is possible not to output the H level. When the unloading operation is stopped, the signal recording surface area 30b comes on the disk detector 13, so that the detection signal A becomes H level.
[0031]
When the cool CD 30 that has been ejected is removed, the disc detection unit 13 outputs an L level detection signal indicating that there is no disc, so the control unit 24A determines YES in step S70, and returns to step S40 in FIG.
If the user presses the cool CD 30 into the slot 4 to listen to the cool CD 30 once ejected, and the signal recording surface area 30b comes on the second disc ejection detector 20, the detection signal D changes from L to H level (see FIG. 4B). Then, the control unit 24A determines YES in step S71, proceeds to step S41 in FIG. 2, and performs a loading operation in exactly the same manner as described above.
[0032]
(2) When a normal 8 cm single CD is inserted
When the cool CD 30 is taken out and the 8 cm single CD 3 shown in FIG. 1 is inserted instead from the slot 4, the signal recording surface area 3 b comes on the disk detector 13 in the same manner as in (1), and is at the H level. When the detection signal A is input (see FIG. 15 (1)), the loading drive is started, and the loading drive is stopped when the detection signal B of H level is output from the loading completion detection unit 16 (see FIG. 2). Steps S40 to S43 (see FIG. 15B). The detection signal A input from the disk detector 13 is checked to determine the size of the disk loaded this time, and the determination result is stored as SIZE data (step S44). Here, since A is at the L level, SIZE data = 8 cm.
Thereafter, when the PLAY key is pressed on the operation unit 23, the control unit 24A rotates the turntable 5 at a constant linear velocity by a spindle motor, and a single CD 3 is reproduced by the optical pickup 7, a head amplifier (not shown), and a reproduction system of the signal processing unit. Playback is started from the beginning, and playback is stopped to the end or when the STOP key is pressed (steps S45 to S49).
[0033]
When the user wants to take out the single CD 3 loaded on the turntable 5, the user presses the eject key of the operation unit 23 to perform the eject operation. Then, the control unit 24A determines YES in step S50, and proceeds to the flow of FIG. If an eject operation is performed during the reproduction of the disc, the reproduction is stopped and the process proceeds to the flow of FIG. 3 (YES in step S51, S52). In the flow of FIG. 3, first, the control unit 24A starts unloading driving (step S60). Since the SIZE data determined and stored at the time of loading the disc is 8 cm, the second disc ejection detecting unit 20 for small size is used. Is waited for the detection signal D to become L level indicating that the disk has come to the ejection position (steps SS61, 63). When D becomes L level, it is determined that the disc has come to the ejection position (YES in step S63; see FIG. 16 (1)), and after waiting for 130 ms, the drive unit 12 is controlled to control the loading motor. 11 is stopped, and the unloading drive of the slot-in type loading mechanism 10 is stopped (steps S64 and S65). As a result, a discharge amount suitable for an 8 cm single CD 3 can be secured, and almost half can be taken out from the slot portion 4 (see FIG. 16B).
[0034]
(3) When a normal 12 cm CD is inserted
When a single CD 3 is taken out and a normal CD 2 of 12 cm shown in FIG. 8 is inserted instead from the slot 4, the signal recording surface area 2 b comes on the disk detector 13 and the H level detection signal A is input. Then, the loading drive is started (steps S40 and S41 in FIG. 2; see FIG. 12A), and the loading drive is stopped when the detection signal B of H level is output from the loading completion detection unit 16 (step S42). , S43 (see FIG. 12 (2)). The detection signal A input from the disk detector 13 is checked to determine the size of the disk loaded this time, and the determination result is stored as SIZE data (step S44). Here, since the signal recording surface area 2b comes on the disk detector 13 and A becomes H level, SIZE data = 12 cm.
Thereafter, when the PLAY key is pressed at the operation unit 23, the control unit 24A rotates the turntable 5 at a constant linear speed by the spindle motor, and starts the CD 2 by the optical pickup 7, the head amplifier (not shown), and the reproduction system of the signal processing unit. The playback is stopped until the end of playback or when the STOP key is pressed (steps S45 to S49).
[0035]
When the user wants to remove the CD 2 loaded in the turntable 5, the user presses the eject key of the operation unit 23 and performs an eject operation. Then, the control unit 24A determines YES in step S50, and proceeds to the flow of FIG. If an eject operation is performed during the reproduction of the disc, the reproduction is stopped and the process proceeds to the flow of FIG. 3 (YES in step S51, S52). In the flow of FIG. 3, first, the control unit 24A starts the unloading drive, and since the SIZE data discriminated and stored at the time of loading the disc is 12 cm, the detection signal C of the first disc ejection detection unit 17 for large size is detected. Waits for an L level indicating that the disk has reached the ejection position (steps S60 to S62). When the signal recording surface area 2b does not exist on the first disk discharge detection unit 17 and C becomes L level, it is determined that the disk has come to the discharge position (YES in step S62, see FIG. 13 (1)). After a further waiting time of 130 ms, the driving unit 12 is controlled to stop the loading motor 11, and the unloading driving of the slot-in type loading mechanism unit 10 is stopped (steps S64 and S65, FIG. 13 (2)). reference). As a result, a discharge amount suitable for CD2 having a size of 12 cm outward from the slot portion 4 can be secured, and the user cannot take out.
[0036]
(4) In the case of a cool CD with labels attached to the outer transparent area
The user inserts the cool CD 31 shown in FIG. 1 from the slot portion 4, and the light emitted from the light emitting element 14 is received by the light receiving element 15 when the signal recording surface area 31 b or the label 32 comes on the disk detecting section 13. Then, an H level detection signal A indicating the presence of the disk is output from the light receiving element 15 (see FIG. 21 (1)). When the detection signal A becomes H level, the control unit 24A determines that a disc has been inserted (YES in step S40 in FIG. 2), and controls the drive unit 12 to rotate the loading motor 11 at a constant speed, thereby causing the slot-in. The type loading mechanism unit 10 is loaded (step S41). As a result, the cool CD 31 is moved from the slot portion 4 to the turntable 5, and the center hole 31a is fitted into the convex portion 6 to be in a loaded state (at this time, a chuck (not shown) interlocked with the slot-in type loading mechanism portion 10). Cool CD31 is chucked by the king mechanical part). Thereafter, the contact of the loading completion detection unit 16 is closed in conjunction with the loading operation of the slot-in type loading mechanism unit 10 and an H level detection signal B indicating the completion of disk loading is output.
[0037]
When the detection signal B becomes H level, the control unit 24A determines that the disk loading is completed (YES in step S42), controls the driving unit 12 to stop the loading motor 11, and the slot-in type loading mechanism unit 10 The loading drive is stopped (step S43). At this time, the detection signal A input from the disk detector 13 is checked to determine the size of the currently loaded disk, and the determination result is stored as SIZE data (step S44). Here, the label 32 is on the disk detection unit 13, the light emitted from the light emitting element 14 is reflected by the back surface of the label 32 and enters the light receiving element 15, and A is at the H level. It is assumed that the data is 12 cm (see FIG. 21 (2)). Thus, when the loading of the cool CD 31 onto the turntable 5 is completed, the light emitted from the light emitting element 21 when the signal recording surface area 31b comes directly above the second disk ejection detecting unit 20 is received by the light receiving element 22. Then, an H level detection signal D is output from the light receiving element 22.
[0038]
Thereafter, when the PLAY key is pressed on the operation unit 23, the control unit 24A rotates the turntable 5 at a constant linear speed by a spindle motor, and the cool CD 31 is played by the optical pickup 7, a head amplifier (not shown), and the reproduction system of the signal processing unit. Playback is started from the beginning, and playback is stopped to the end or when the STOP key is pressed (steps S45 to S49).
[0039]
When the user wants to remove the cool CD 31 loaded in the turntable 5, the user presses the eject key of the operation unit 23 to perform the eject operation. Then, the control unit 24A determines YES in step S50, and proceeds to the flow of FIG. If an eject operation is performed during the reproduction of the disc, the reproduction is stopped and the process proceeds to the flow of FIG. 3 (YES in step S51, S52). In the flow of FIG. 3, first, the control unit 24A controls the drive unit 12 to reversely rotate the loading motor 11 at a constant speed, and starts the slot-in type loading mechanism unit 10 to start unloading (step S60). First, the chucking by the chucking mechanism is released in conjunction with the unloading operation of the slot-in type loading mechanism 10. Subsequently, due to the unloading operation of the slot-in type loading mechanism unit 10, the cool CD 31 is raised and the center hole 31a is disengaged from the convex portion 6 of the turntable 5 (at this stage, the contact of the loading completion detection unit 16 is opened and detected) Signal B falls to L level). Next, the cool CD 31 moves straight in the direction of the slot portion 4.
[0040]
After the step S60, the control unit 24A determines that the detection signal C of the first disc ejection detection unit 17 for large size has reached the ejection position because the SIZE data determined and stored at the time of loading the disc is 12 cm. Waiting for the L level to be reached (steps S61 and S62). When C becomes L level, it is determined that the disk has come to the ejection position (YES in step S62), and after waiting for a further 130 ms, the drive unit 12 is controlled to stop the loading motor 11, and the slot in The unloading driving of the expression loading mechanism unit 10 is stopped (steps S64 and S65).
[0041]
Here, when the cool CD 31 when the ejection operation is performed is in the state shown in FIG. 5 (1), the signal recording surface area 31b as well as the label 32 are not present on the first disc ejection detection unit 17. The light emitted from the light emitting element 18 is not incident on the light receiving element 19, and the first disc ejection detection unit 17 sets the detection signal C to L level. For this reason, immediately after starting the unloading operation, YES is obtained in step S62, and the ejection is completed while the cool CD 31 remains in the set. 2) A one-dot chain line X. See FIG.
[0042]
In this embodiment, after the disc is completely ejected, when the user presses the eject key again to perform the eject operation, the control unit 24A controls the drive unit 12 to reverse the loading motor 11 at a constant speed, thereby causing the slot-in type loading. The unloading drive for the mechanical unit 10 is started, and the unloading operation of the slot-in type loading mechanical unit 10 is restarted (steps S66 and S67). This unloading drive is continued while the eject key is kept depressed and the eject operation is continued. When the eject key is released from the slot 4 where the cool CD 31 is easily ejected and the ejection operation is completed, the control unit 24A controls the drive unit 12 to stop the loading motor 11 and the slot-in type loading. The unloading drive for the mechanical unit 10 is stopped, and the unloading operation of the slot-in type loading mechanical unit 10 is stopped (steps S68 and S69; see the solid line Y in FIG. 5 (2)). As a result, the user can easily take out the cool CD 31.
[0043]
If the cool CD 31 when the ejection operation is performed is in the state shown in FIG. 6A, the label 32 is provided on the first disk discharge detection unit 17, so the first disk discharge detection unit 17 detects the detection signal. C is at H level. For this reason, after the unloading operation is started in step S60, the unloading operation continues for a while, and when the edge of the label 32 reaches the first disk discharge detection unit 17, the answer is YES in step S62, and the outside of the slot portion 4 Since more than half of the cool CD 31 is ejected and the unloading operation is stopped, it can be taken out as it is (see FIG. 6 (2)).
[0044]
When the disc size determined when the disc is loaded is 8 cm, the detection signal D of the second disc ejection detection unit 20 for small size indicates that the disc has reached the ejection position after the unloading operation is started. Then, the unloading operation stops when 130 ms elapses (steps S60, S61, S63, S64, and S65 in FIG. 3). If the cool CD 31 when the ejection operation is performed is in the state of FIG. 5A, the cool CD 31 is in the state of FIG. 7A when the ejection is completed, and the cool CD 31 when the ejection operation is performed is illustrated in FIG. In this state, when the discharge is completed, the cool CD 31 is in the state shown in FIG. 7B. In either case, the cool CD 31 is discharged from the slot portion 4 to the outside, so that it can be taken out as it is.
[0045]
According to this embodiment, when the eject key of the operation unit 23 is pressed and an ejection operation is performed with the optical disc loaded, the control unit 24A controls the slot-in type loading unit to start the unloading operation. Of the disk discharge detection unit 17 for size and the disk discharge detection unit 20 for small size, the disk comes to the discharge position according to the size determined when the disk is loaded on the turntable 5. If this is detected, the unloading operation is stopped. As a result, CD2 or single CD3 conforming to the standard can be reliably discharged from the slot portion 4 to the outside. If the amount of ejected disc is insufficient due to non-standard values, such as Cool CD31, if the eject key is pushed further and the eject operation is performed, the control unit 24 is a slot-in type while the eject operation is being performed. Since the unloading operation is continued by controlling the loading unit, a desired amount can be discharged, and the disc can be reliably taken out.
[0046]
If the flow of FIG. 3 is modified as shown in FIG. 8 and NO in step S68, the process proceeds to step S72, and the process proceeds to step S72. If it is NO, the process returns to step S68. If YES, the process may advance to step S69 to automatically stop the unloading operation. In this way, even if the user accidentally keeps pressing the eject key for a long time and continues the ejection operation for a long time, the unloading operation is continued only for a certain time, so that the disk is completely removed from the slot portion 4. Can be prevented.
Further, in the above-described embodiment and modification, the disc size is determined immediately after being loaded on the turntable 5, but after loading on the turntable 5, unloading drive is performed in step 60 of FIG. It may be determined until it is started (while the disk is loaded on the turntable 5).
[0047]
【The invention's effect】
According to the present invention, an optical disc conforming to the standard can be reliably ejected from the slot portion to the outside, and even if the ejected amount of the optical disc is insufficient due to non-standard or the like, the ejection operation is further performed to a desired amount. It is possible to reliably take out the optical disc by ejecting only.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a slot-in CD player according to one embodiment of the present invention.
FIG. 2 is a flowchart showing a control process of a control unit in FIG.
FIG. 3 is a flowchart showing a control process of a control unit in FIG. 1;
4 is an explanatory diagram of the loading / unloading operation of FIG. 1. FIG.
FIG. 5 is an explanatory diagram of the loading / unloading operation of FIG. 1;
6 is an explanatory diagram of the loading / unloading operation of FIG. 1. FIG.
7 is an explanatory diagram of the loading / unloading operation of FIG. 1. FIG.
FIG. 8 is a flowchart showing a modification of FIG.
FIG. 9 is a configuration diagram of a conventional slot-in CD player.
10 is a flowchart showing a control process of a control unit in FIG. 9;
FIG. 11 is a flowchart showing a control process of a control unit in FIG. 9;
12 is an explanatory diagram of the loading / unloading operation of FIG. 9;
13 is an explanatory diagram of the loading / unloading operation of FIG. 9;
14 is an explanatory diagram of the loading / unloading operation of FIG. 9. FIG.
FIG. 15 is an explanatory diagram of the loading / unloading operation of FIG. 9;
16 is an explanatory diagram of the loading / unloading operation of FIG. 9;
FIG. 17 is an explanatory diagram of the loading / unloading operation of FIG. 9;
FIG. 18 is an external view of a CD of a type different from the standard.
FIG. 19 is an explanatory diagram of the loading / unloading operation of FIG. 9;
20 is an explanatory diagram of the loading / unloading operation of FIG. 9;
FIG. 21 is an explanatory diagram of the loading / unloading operation of FIG. 9;
22 is an explanatory diagram of the loading / unloading operation of FIG. 9;
[Explanation of symbols]
2 CD 2a, 3a, 30a, 31a Center hole
2b, 3b, 30b, 31b Signal recording surface area
2c, 2d, 3c, 3d, 30c, 30d, 31c, 31d Transparent region
3 Single CD 4 Slot
5 Turntable 6 Convex
10 Slot-in type loading mechanism
11 Loading motor 12 Drive unit
13 Disc detector 14, 18, 21 Light emitting element
15, 19, 22 Light receiving element 16 Loading completion detection unit
17 First disc ejection detection unit 20 Second disc ejection detection unit
23 Operation part 24A Control part

Claims (4)

A slot for inserting and removing an optical disc;
A rotating unit that rotates an optical disc to enable reading of a recorded signal;
A slot-in type loading unit that performs a loading operation for moving and loading an optical disk from the slot unit to the rotating unit and an unloading operation for moving and discharging the optical disk from the rotating unit to the slot unit;
A loading detection unit for detecting that the optical disk has been loaded in the rotating unit during the loading operation of the slot-in type loading unit;
A discharge detection unit for detecting that the optical disk has come to a predetermined discharge position in the unloading operation of the slot-in type loading unit;
When an optical disc is inserted from the slot portion when the optical disc is not loaded, the loading operation is started by controlling the slot-in type loading portion, and the loading operation is performed when the loading detection portion detects that the optical disc has been loaded. On the other hand, when the ejection operation is performed by the ejection operation unit with the optical disk loaded, the slot-in loading unit is controlled to start the unloading operation, and the ejection detection unit has detected that the optical disk has reached the ejection position. A loading control unit that stops the unloading operation when detected;
Including
The loading control unit controls the slot-in type loading unit to start the unloading operation by the ejection operation in the ejection operation unit in the optical disk loaded state, and the ejection detection unit detects that the optical disk has reached the ejection position. At this point, after the unloading operation is stopped and the ejection of the optical disk is completed, if the eject operation unit is further ejected, the slot-in type loading unit is controlled during the ejection operation to perform the unloading operation. To continue,
A slot-in type optical disc reproducing apparatus characterized by the above. The loading control unit controls the slot-in type loading unit to start the unloading operation by the ejection operation in the ejection operation unit with the optical disc loaded, and the ejection detection unit detects that the optical disc has reached the ejection position. By the way, after the unloading operation is stopped and the ejection of the optical disk is completed , when the ejection operation is further performed by the ejection operation unit, the slot-in type loading unit is operated while the ejection operation is performed only within a predetermined time period. Controlled to continue the unloading operation,
The slot-in type optical disc reproducing apparatus according to claim 1. A slot for loading and unloading optical disks of multiple sizes;
A rotating unit that rotates an optical disc to enable reading of a recorded signal;
A slot-in type loading unit that performs a loading operation for moving and loading an optical disk from the slot unit to the rotating unit and an unloading operation for moving and discharging the optical disk from the rotating unit to the slot unit;
A size detector for detecting the size of the optical disc;
A loading detection unit for detecting that the optical disk has been loaded in the rotating unit by the loading operation of the slot-in type loading unit;
A plurality of discharge detection units provided for each size, for detecting that the optical disc has come to a predetermined discharge position according to the size in the unloading operation of the slot-in type loading unit;
When an optical disc is inserted from the slot portion without the optical disc loaded, the slot-in type loading portion is controlled to start the loading operation. When the loading detection portion detects that the optical disc is loaded into the rotating portion. When the loading operation is stopped and, on the contrary, when the ejection operation is performed by the ejection operation unit with the optical disc loaded, the slot-in loading unit is controlled to start the unloading operation, and according to the size detected by the size detection unit. A loading control unit that stops the unloading operation when the ejection detection unit detects that the optical disk has reached the ejection position,
The loading control unit controls the slot-in type loading unit to start an unloading operation by an ejection operation in the ejection operation unit in an optical disk loaded state, and is a discharge detection unit corresponding to the size detected by the size detection unit. When it is detected that the optical disk has reached the ejection position, the unloading operation is stopped and the ejection of the optical disk is completed. Then, when the ejection operation is further performed by the ejection operation unit, the slot-in is performed while the ejection operation is being performed. The unloading operation was continued by controlling the expression loading unit,
A slot-in type optical disc reproducing apparatus characterized by the above. The loading control unit controls the slot-in type loading unit to start the unloading operation by the ejection operation in the ejection operation unit with the optical disc loaded, and the ejection detection unit detects that the optical disc has reached the ejection position. By the way, after the unloading operation is stopped and the ejection of the optical disk is completed , when the ejection operation is further performed by the ejection operation unit, the slot-in type loading unit is operated while the ejection operation is performed only within a predetermined time period. Controlled to continue the unloading operation,
4. A slot-in type optical disc reproducing apparatus according to claim 3, wherein:

Images