JP2883520B2 - Disc player control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for storing a plurality of disk-shaped recording media (hereinafter, referred to as disks) on which various kinds of information are recorded, playing a desired disk, or taking out the disk to separate it. The present invention relates to a disc player which can be exchanged for a disc.

[0002]

2. Description of the Related Art As this kind of disk player, as shown in FIGS. 29 and 30, a disk housing magazine (610) is rotatably provided on a base chassis (600).
A device provided with two signal reproducing units (630) and (630) and one input / output unit (620) outside the rotation transfer path is proposed (Japanese Patent Application Laid-Open No. 4-57248).

On the outer peripheral side of the magazine (610), grooves (611) and (614) are formed on the bottom and the ceiling, respectively, from the outer peripheral side toward the center of rotation.
And the lower end and the upper end of the disc D are fitted in the grooves so that the disc can be accommodated in an upright state.

A notch is formed at the outer end of each lower groove (611).
(612) is provided, and a leaf spring (613) is provided in the notch so as to protrude from the notch.

[0005] The loading / unloading section (620) is provided with a kick-out arm (621) for kicking a disk on the magazine (610) to the outside so as to be rotatable in a vertical plane, and each signal reproducing section (630). (630)
The kicking arm (631) for kicking the disc to the performance setting position (633) and the disc D at the performance setting position (63
A kick arm (632) for kicking the magazine (610) from 3) is provided rotatably in a vertical plane.

[0006] From the outside of the loading / unloading section (620), the magazine (61
When the disc D is pushed into the slot (0), the disc D
(614) to enter the inside of the magazine (610), press down on the leaf spring (613) on the way to enter, and when the disk D exceeds the leaf spring (613), the leaf spring becomes elastic. Then, the disc D is prevented from inadvertently jumping out.

At the time of playing a disc, the magazine (610) rotates in accordance with the position of the disc selected by the user, and the disc D is used to output an empty signal from one of the two signal reproducing units (630) and (630). The disc D is kicked out to the playing position (633) of the signal playback unit (630) by the kicking arm (631) so as to face the playback unit.

When the performance is completed, the kicking arm (632)
As a result, the disk D is kicked to the original position of the magazine (610).

[0009]

However, in the above-mentioned disc player, when the disc is set in the reproducing section (630), the disc completely escapes from the disc magazine (610), so that the player becomes large. There is.

Therefore, the applicant has proposed a disc player having a novel mechanism that can be made smaller than before (Japanese Patent Application Nos. 4-348374 and 4-3484).
11, Japanese Patent Application No. 4-348463, Japanese Patent Application No. 4-34850
0).

Further, the applicant has proposed a disc player having a control device for efficiently and safely driving the mechanism of the disc player (Japanese Patent Application Nos. 5-103194 and 5-103195). Japanese Patent Application Nos. 5-103196 and 5-103197.

According to the present invention, there is provided a disk player control device for preventing damage to a disk due to abnormal insertion of a disk before turning on a power switch, or for preventing disk vibration due to device vibration or the like when moving the device after opening a power switch. A control to prevent damage, protect the disk and safely drive the mechanism is evident.

A more specific object of the present invention is to detect whether a disk is abnormally inserted into the apparatus by a finger or the like before turning on a power switch, by detecting that a shutter of a disk insertion port is open, and opening the disk. Is detected, the presence or absence of a disk is determined in the disk receiving groove facing the disk loading / unloading section, thereby preventing double storage of the disk in the disk receiving groove. Accordingly, it is an object of the present invention to provide a disk player control device for preventing a disk from being damaged and protecting the disk.

Another specific object is to determine the presence or absence of a disk in any of the disk storage grooves of the magazine when the power switch is opened, and to rotate the magazine when it is determined that there is no disk in the magazine. By positioning the magazine at a first position that can be fixed to the base chassis and determining that a disc is present in the magazine, by positioning the magazine at a second position that cannot be fixed to the base chassis, An object of the present invention is to provide a disk player control device that protects a disk by preventing damage to the disk due to device vibration or the like when the device is moved after the switch is released.

[0015]

A disk player comprises a rotatable magazine (3) having a plurality of disk accommodation grooves (31) formed substantially radially around a center of rotation, and a magazine for driving the magazine (3) to rotate. A rotating mechanism, a disk loading / unloading unit (4) and a signal reproducing unit (9) which are arranged at positions offset from each other on the side of the rotation transition path of the magazine (3), a disk loading / unloading unit (4) and the magazine ( A first transfer device (6) for transferring a disk between 3), a signal reproducing unit (9), and a magazine
Second delivery device for delivering a disk between (3)
(6a).

The control device of the disk player controls the first transfer device (6) so that the disk inserted in the disk input / output unit (4) can receive the disk in the disk accommodation groove in the magazine (3).
(31) while controlling the magazine rotation mechanism,
A first control unit for rotating the disk accommodation groove (31) to a position facing the signal reproducing unit (9), and a second transfer device (6
a) to transfer the disk in the disk receiving groove (31) provided at a position facing the signal reproducing unit (9) toward the signal reproducing unit (9), and transfer the transferred disk to the magazine (3). ), And controls the magazine rotation mechanism to insert the disk receiving groove (31) installed at a position facing the signal reproducing unit (9) into the disk loading / unloading unit (4). A third control means for rotating to a position opposed to the signal reproducing unit, and a signal reproducing unit (9)
Disk detecting means installed at the entrance of the disk for detecting a disk heading to the signal reproducing unit (9), and a disk loading / unloading unit
(4) a shutter open detecting means for detecting that a shutter (41) provided to be able to be opened and closed at a disk slot of the disk loading / unloading section is opened; Check whether the shutter (41) is open by the open detection
If it is confirmed that 1) is open, the first control means sets the disk accommodation groove (31) in the disk loading / unloading section.
After the disc is installed at a position facing the signal reproducing unit (9) from a position facing the signal reproducing unit (9), the disk in the disk accommodation groove (31) is transferred toward the signal reproducing unit (9) by the second control means. At the same time, the presence / absence of a disk is determined by the disk detection means, and if the presence of the disk is determined in the disk accommodation groove (31) by the determination, the disk is loaded / ejected by the third control means. And 4) a fourth control means for installing the device at a position opposed to 4).

Further, the control device of the disk player includes a control means for rotating the disk storage groove (31) of the magazine (3) by one pitch and a disk storage groove (31) of one of the magazines (3). Disk presence / absence determination means for determining whether or not there is a disk; and when the power is turned off, if the disk presence / absence determination means determines that there is no disk in the magazine (3), the control means means the magazine.
(3) is positioned at a first position, and when the disk presence / absence determining means determines that a disk is present in the magazine (3), the control means positions the magazine (3) at a second position. It is characterized by doing.

[0018]

When the power switch of the disk player is turned on, first, it is detected whether or not the shutter (41) provided at the disk insertion port of the disk insertion / ejection unit (4) so as to be openable and closable is open. When it is detected that the shutter is open, the first control unit is controlled to
The disc in the disc loading / unloading section (4) is a magazine
After being loaded into the disk storage groove (31) in (3), the magazine rotating mechanism is controlled, and the rotation of the magazine causes the disk storage groove (31) to reproduce a signal from a position facing the disk input / output unit (4). It is installed at a position facing the part (9). afterwards,
The second control means transfers the disk in the disk accommodation groove (31) to the signal reproducing unit (9), and the disk detection means determines whether or not there is a disk in the disk accommodation groove (31). As a result, it is detected whether or not a disk has been inserted into the magazine (3) from the disk insertion port of the disk insertion / ejection unit (4) before the power is turned on. Then, when it is determined that a disk is present in the disk accommodation groove (31), the magazine rotation mechanism is controlled by the control of the third control means, and the rotation of the magazine causes the disk accommodation groove (31) to move to the signal reproducing unit (9). It is installed at a position facing the disk loading / unloading section (4) from a position facing the disk.

Therefore, double storage of the disk when the disk is inserted into the magazine (3) after the power switch is turned on is prevented beforehand, and damage to the disk can be prevented.

When the power switch of the disk player is released, first, the disk presence / absence determination means determines whether or not a disk is present in the magazine (3). When it is determined that there is no disk, the control means positions the magazine (3) at a first position that can be fixed to the base chassis (1).

On the other hand, if it is determined that there is a disk in the magazine, the control means positions the magazine (3) at a second position which cannot be fixed to the base chassis.

With this, when the magazine (3) is fixed for moving the apparatus by releasing the power, when the magazine (3) has a disk, the magazine (3) is fixed to the base chassis. Cannot be performed, and it is recognized that a disc is stored in the magazine (3). Further, when there is no disc in the magazine (3), the magazine (3) can be fixed to the base chassis, and it is recognized that no disc is stored in the magazine (3). Further, it is possible to prevent the disk from being damaged due to device vibration or the like when the device is moved after the power switch is opened.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a mechanism and a control device of a disc player according to the present invention will be described.

[Overall Overview] (See FIGS. 1, 2 and 3) The embodiment is a disk player on which an audio signal is recorded by using a laser. Of the 8 cm, the player is a player dedicated to a 12 cm disk. However, the present invention is not limited to this, and it goes without saying that the present invention can be applied to players of various disc-shaped recording media.

Base chassis of disc player (2)
(1) is a magazine that can accommodate 24 disks D
(3) is provided rotatably in a horizontal plane, and a disk loading / unloading section (4) and a signal reproducing section (9) are provided outside the rotation transfer path of the magazine (3).

Disk loading / unloading section (4) and signal reproducing section
(9) is 135 ° away from the center of rotation of the magazine (3) in order to make the entire player most compact.

In the following description, the disc loading / unloading section (4) is called the front side and the signal reproducing section (9) is called the play side with the magazine (3) shown in FIG. 2 interposed therebetween.

The magazine (3) has a receiving groove (31) for 24 disks formed radially around the center of rotation, and a front-side transfer device provided in the disk loading / unloading section (4).
By (6), the disc D is loaded from the outside into the magazine (3), and the disc is discharged from the magazine (3) to the outside. Further, a guide member (5) for guiding an upper part of a group of disks housed in the magazine (3) is provided above the magazine (3).

In the disk loading / unloading section (4), a rotary shutter (41) for opening and closing the slit is provided behind the slit (21) of the front panel (2).
A disk insertion guide (510) is provided at the rear, and a disk transfer device (6) on the front side to the magazine (3) is further provided at the rear thereof.

The front-side transfer device (6) includes a pair of transport rotating rollers (61) and (62) which are provided close to the disk insertion guide port (510) and transport the disk D therebetween.
(61) The disc (D) on the magazine (3) is slidably mounted on the base chassis (1) behind the (62) and the roller (61)
(62) A kick-out member (7) for kicking out to the side.

The signal reproducing section (9) comprises: a disc housing case (91) for housing a disc supplied from the magazine (3);
A head mounting body (92) and a clamper (93) are provided on both sides of the case so as to be able to approach and separate from each other and rotatably chuck a disk in the case, and are provided on a slide plate (8) on a base chassis (1). Is done.

Also, in response to the signal reproducing section (9), a disc in the magazine (3) is transferred to the signal reproducing section (9), or a disc in the signal reproducing section (9) is transferred to the magazine (3). Side transfer device (6a) is provided.

The play-side transfer device (6a), like the front-side transfer device (6), slides on the base chassis (1) and kicks out the disc D on the magazine (3). 7a), a pair of transport rotating rollers (61a), (62a) for transporting the disc across the disc.

The base chassis (1) and the magazine (3)
Is provided with a screw hole (10) for fixing the magazine (3) to the base chassis (1) when moving the apparatus.
In this embodiment, the disc storage groove (31) of the magazine (3) is used.
Among them, NO. When the disc storage groove of No. 4 faces the disc loading / unloading part (4) on the front side, the screw holes provided on the base chassis (1) and the magazine (3) coincide, and can be fixed with screws. I am trying to be.

When the performance is completed, the disc is loaded into a magazine.
Return to (3).

In FIG. 2, M1 to M7 are drive motors for operating the following mechanisms. M1 is a shutter opening / closing motor, M2 is a front loading motor, M3 is a magazine drive motor, M4 is a play loading motor, and M5 is a play loading motor.
Is a chucking motor, M6 is a disk drive motor, and M7 is a head slide motor.

SW1 to SW3 are disk loading / unloading units (4)
SW1 is a switch for detecting the operation state of the rotary shutter (41), and SW1 is a shutter full-close detection switch;
W2 is a switch for fully opening the shutter, and SW3 is a switch for detecting the engagement of the disk.

Further, SW4 is a switch for detecting the position of the kick-out member on the disk loading / unloading side which is provided corresponding to the retreat position of the kick-out member (7), and SW5 is the disk accommodating No. 1 of the magazine (3). SW6 is a position detecting switch provided in correspondence with the groove (31), SW6 is a kicking member retreat position detecting switch provided in correspondence with the retreat position of the kicking member (7a), and SW7 and SW8 are disc chucks. SW7 is a switch for detecting king and chucking release. SW7 is a chucking completion switch, and SW8 is a chucking release switch.

SE1 to SE6 are sensors for determining the disk size, SE7 is a sensor for determining the passage of the disk, and SE8 is a count sensor for detecting the rotation angle of the magazine. Is illustrated.

Operation modes such as loading (discharging), discharging (ejecting), starting (playing), and stopping (stopping) performance of a disc are set on the front panel (2) shown in FIG.
ON-OFF key (22), play key (23), stop key (24), eject load key (25), numeric keypad
(26), for example, when the user selects a disc to be played, the magazine (3) rotates, the disc is conveyed to the signal reproducing unit (9), and the transfer device (6a ) Sends out the disc to the signal reproducing section (9).

Various displays are provided on the display (28) according to the mode of the player, and the viewing window (29) is for seeing the accommodation state and the rotation state of the disc on the magazine (3). .

[Control Device] (See FIGS. 4 to 28) FIG. 4 shows the configuration of a control device for driving and controlling the mechanism of the disc player.

The eight switches (SW1) to (SW8) and the eight sensors (SE1) to (SE8) are connected to the input port of the microprocessor (200).

The microprocessor (200) has E2PR
A nonvolatile memory (201) composed of an OM and a volatile memory (202) composed of a RAM are built in, and a control program described later is stored in the nonvolatile memory (201).

The output ports of the microprocessor (200) include the shutter opening / closing motor (M1), the front loading motor (M2), the magazine drive motor (M3),
The play-side loading motor (M4) and the chucking motor (M5) are connected via motor drive circuits (201) to (205), respectively. Each motor drive circuit is supplied with a rotation control signal in two forward and reverse directions from a microprocessor (200), whereby the rotation of each motor is controlled. Also, the drive circuit (203) of the magazine drive motor (M3)
Is supplied with a control signal Sc for switching the rotation speed of the motor between high speed and low speed from the microprocessor (200).

The rotation of the disk drive motor (M6) and the head slide motor (M7) is controlled by the servo circuit (220), and the signal read by the signal read head (230) is supplied to the digital signal processor (240). And converted into a digital audio signal. The signal is also D /
After being converted into an analog audio signal via the A converter (241), it is output to the outside via a low-pass filter (242). Since the circuits for reproducing these signals are the same as those in the related art, the description of the specific configuration and operation will be omitted.

The microprocessor (200) is connected to the various operation keys (20) and the display (28), and various modes are set by operating the operation keys (20). Information on the set mode is displayed on the display (28).

In the nonvolatile memory (201) of the microprocessor (200), the presence or absence of a disk ("1" or "0") for each disk number (1 to 24) of the magazine as shown in FIG.
A table is provided for storing. As shown in FIG. 6, the volatile memory (202) has a storage section for the disk number A of the magazine facing the disk loading / unloading section (4) and a disk number B designated to be loaded or ejected. Is prepared.

The non-volatile memory (201) stores programs for realizing various operations by the various operation key groups (20). In the present invention, the operation key group (2)
The description of the basic configuration and operation according to (0) is omitted.

Hereinafter, the power switch ON-OFF of the present invention will be described.
The function of the program related to the operation will be described with reference to the flowcharts of FIGS.

In the following description, each sensor (SE1)
In (SE8), a state in which light transmission is allowed is set to ON, and a state in which light is blocked is set to OFF. The disk number is the same as the number assigned to each disk storage groove (31) of the magazine (3). For example, a disk of No. 5 is stored in the disk storage groove (31) of No. 5 Refers to the burned disc.

[Disk Check] (Refer to FIGS. 7 to 9) As described above, in the nonvolatile memory (201) of the microprocessor (200), the presence / absence of a disk in the magazine (3) is determined by the disk accommodation groove (31). The data is written for each number, but if the data in the nonvolatile memory (201) is destroyed for some reason, the subsequent operation is hindered. Therefore, when the power of the disk player is turned on, it is determined whether or not the data in the nonvolatile memory (201) is normal. When an abnormality has occurred, the following disk check function is forcibly operated. Correct data is newly created and registered in the nonvolatile memory (201).

In determining whether or not the data in the nonvolatile memory (201) is normal, the nonvolatile memory (201)
A storage unit for error detection data is provided therein, and each time a disc is inserted or ejected, it is checked whether or not the error detection data has changed.

When there is a change in the error detection data, the magazine drive motor is started in step S1 in FIG. 7 to rotate the magazine clockwise. Then, in step S2, based on the signal from the count sensor (SE8),
Insert the disc storage groove (31) of the magazine (3) from No. 1 to No. 2
Positioning is sequentially performed up to 4 at a position facing the signal reproducing unit (9). In step S3, the chucking motor is rotated in the counterclockwise direction, that is, in the chuck releasing direction.
After the release of the chuck is detected, the chucking motor is stopped in step S5.

Thereafter, in step S6, the loading motor on the play side is rotated clockwise, that is, in the direction for transporting the disc in the magazine (3) to the signal reproducing section (9), and in step S7, a 4-second timer is set. I do.

Then, in step S8 of FIG. 8, it is determined whether or not the seventh sensor (SE7) for determining passage of the disk has been turned OFF.
Second time over is determined, and if NO, step S
Return to 8. At this time, if a disc is stored at a position facing the signal reproducing unit (9), the disc passes through the above-described seventh sensor (SE7), and thus YES is determined in step S8. You. In this case, step S
At 11, a "1" indicating that a disk is present is written into the table of FIG. 5 at the numbered position of the disk storage groove (31) in which the disk is stored.

If the disc is not stored at the position facing the signal reproducing unit (9), 4 seconds time out in step S9, and in step S10, the signal reproducing unit (9) is stored in the table of FIG. ) Is written in the numbered position of the disk accommodation groove (31) facing ")", which means "no disk".

Thereafter, the play-side loading motor is rotated counterclockwise in step S12, the ON of the seventh sensor (SE7) is detected in step S13, and then a 0.5 second timer is set in step S14. I do.

After a time-out of 0.5 seconds is detected in step S15 in FIG. 9, the loading motor on the play side is stopped in step S16. As a result, the disk stored in the disk storage groove (31) is recovered into the magazine (3).

In step S17, it is determined whether the check for the presence or absence of the 24 disks has been completed. If the determination is NO, the process proceeds to the check for the next disk accommodation groove (31).

[Initial Processing] (See FIGS. 10 to 18) For example, before turning on the power switch, the disc player is
When the disk storage state in the device is changed by disconnecting from the outlet, or when the disk storage state in the device is changed manually, that is, when the disk is inserted and removed from the disk slot of the disk player, the shutter is completely When the power switch is turned on without being closed, whether the disk has been loaded into the magazine (3) or not
It is necessary to detect and determine the presence or absence of the disc in (31).
Regardless of whether or not these abnormal situations have occurred, when the power is turned on, the following initial processing is always executed to return the disc player to a normal initial state,
It prepares for the setting of the operation mode such as disc loading and play after that.

First, the power ON-OFF key (22) is turned on.
When the N operation is performed, the chucking motor is rotated in the counterclockwise direction, that is, the chuck releasing direction in step S18 of FIG. 10, and after the completion of chuck release is detected by the signal from the switch (SW8) in step S19, Step S20
To stop the chucking motor.

Next, in step S21, the loading motor on the play side is turned counterclockwise, that is, the disc is loaded in the magazine.
(3) Rotate in the collecting direction, and then go to step S
After detecting the ON of the seventh sensor (SE7) and the kick-out member retreat position detection switch (SW6) at S23 and S23, a 0.5 second timer is set at Step S24.

Then, at step S25 in FIG.
After detecting the time-out of seconds, the loading motor on the play side is stopped in step S26.

According to the above procedure, the disc moved from the magazine (3) to the signal reproducing section (9) is moved to the magazine (3).
Will be collected inside.

Thereafter, in step S27, the chucking motor is rotated clockwise, that is, in the disk chucking direction. In step S28, the completion of the chucking operation is detected by a signal from the switch (SW7). Stop the king motor.

Thus, the clamper (93) of the signal reproducing section (9) is initialized to the disc chuck position.

Thereafter, in order to determine whether or not the data in the nonvolatile memory (201) is normal, it is determined in step S30 whether or not the shutter is completely closed by a signal from the switch (SW1). If NO, at step S31, the disk is inserted into the magazine (3) and a disk check flag "1" indicating that an error has occurred in the data in the non-volatile memory (201) is set, and as described above. The disk check program function is executed in accordance with the flowcharts shown in FIGS.

Thus, the shutter is opened after the AC outlet is disconnected while the power is turned off, or the shutter is opened by manual operation, and the disc is moved from the disc loading / unloading section (4) into the magazine (3). When it is determined that the data has been inserted into the non-volatile memory (201), data in the non-volatile memory (201) is newly created and registered in the non-volatile memory (201).

If the determination in step S30 is YES, as shown in FIG. 12, it is confirmed in the next step S32 that the first to sixth sensors (SE1) to (SE6) are all ON. After that, in step S33, the shutter motor is rotated in the shutter closing direction.

Here, the shutter is closed only when the disk is not loaded into the disk loading / unloading section (4).

After detecting that the shutter is completely closed in step S34, the shutter motor is stopped in step S35.

Subsequently, in step S36, the loading motor on the front side is turned clockwise, that is, the disc is loaded in the magazine.
(3) It is rotated in the direction in which it is carried in, and after the ON of the switch (SW4) is detected in step S37, a timer of 0.5 seconds is set in step S38.

Then, at step S39 in FIG.
After a time-out of seconds is detected, the loading motor on the front side is stopped in step S40.

Here, in steps S38 and S39, the value is set at 0.
The reason for setting the time of 5 seconds is to ensure that the kicking member is positioned at the retreating end, whereby the front kicking member moves to the retreating end which is the initial position.

In step S41, the magazine drive motor rotates to rotate the magazine (3) clockwise, and it is determined in step S42 whether the switch (SW5) has been turned off.
When the magazine (3) rotates and the disk holding groove (31) of No. 1 moves to a position facing the disk loading / unloading section (4), the switch (SW5) is turned off, and step S43 is performed.
The values of A and B in the volatile memory (202) are reset to "1".

Thereafter, as shown in FIG. 14, an AC outlet is connected to the disc player, and it is determined in step S44 whether or not the first power ON operation has been performed.
In the case of the operation, the magazine (3) rotates substantially once, and No. 2
When it is detected in step S45 that the disk holding groove 31 of the disk No. 4 has moved to the position facing the disk loading / unloading section 4, the rotation speed of the magazine 3 is switched to low in step S46. .

When the signal from the count sensor (SE8) detects that the No. 1 disk holding groove (31) has moved to the position facing the disk loading / unloading section (4), the magazine ( The rotation of 3) is stopped (step S48).

As a result, the rotation angle of the magazine (3) is initially set so that the No. 1 disk holding groove (31) faces the disk loading / unloading section (4).

On the other hand, if it is not the first power-on operation by connecting the AC outlet, the magazine (3) rotates in step S49 of FIG. The disk is inserted into the disk holding groove (31) of the disk No. X-1 which is stored and immediately before the power-off operation.
It moves to a position facing the discharge unit (4).

That is, the magazine (3) is rotated, and step S
After detecting that the disc holding groove (31) of the disc No. X-1 has moved to a position facing the disc loading / unloading section (4) at 49, the rotation speed of the magazine (3) is reduced at step S50. The speed is switched to low speed, and when it is detected in step S51 that the disk holding groove (31) of the disk No. X has moved to a position facing the disk loading / unloading section (4), the magazine
The rotation of (3) is stopped (step S52).

Thereafter, in step S53, it is again determined whether or not the disk check flag is "1". If it is determined that the disk check flag has not been set, the initial processing program at the time of power-on operation ends. I do.

If it is determined in step S53 in FIG. 16 that the disk check flag is set, the magazine drive motor is started in step S54 to rotate the magazine clockwise.

Then, in step S55, based on the signal from the count sensor (SE8), the disc holding groove (31) of the disc No. X at the position facing the disc loading / unloading section (4) reproduces a signal. It is detected in step S56 that the positioning is made at the position facing the section (9).

Then, in step S57, the chucking motor is rotated counterclockwise, that is, in the chuck releasing direction.
In step S59, the chucking motor is stopped.

Subsequently, in step S60, the loading motor on the play side is rotated clockwise, that is, in the direction for transporting the disc in the magazine (3) to the signal reproducing unit (9). set.

Then, at step S62, the seventh sensor
It is determined whether or not (SE7) has been turned OFF. If NO, a time-out of 4 seconds is determined in step S63,
If NO in step S63, the process returns to step S62.

At this time, if a disc is stored at a position facing the signal reproducing section (9), the disc passes through the seventh sensor (SE7), and therefore, step S6 is executed.
It is determined YES at 2. In this case, in step S64, "1" indicating that the disk is present is written in the table of FIG. 5 at the number position of the disk receiving groove (31) in which the disk is stored.

If the disc is not stored at the position facing the signal reproducing section (9), the time is over for 4 seconds in step S63, and in step S65, the signal in the table of FIG. "0", which means no disk, is written in the number position of the disk accommodation groove (31) facing the part (9).

Thereafter, in step S66, the play-side loading motor is rotated at a high speed in a counterclockwise direction, and the signal from the count sensor (SE8) causes the disk holding groove (31) immediately before No. X to enter the disk. When it is detected in step S67 that the disk has moved to the position facing the discharge unit (4), the rotation speed of the magazine (3) is switched to low in step S68, and the disk holding groove (31) of No. When the magazine (3) is moved to a position facing the loading / unloading section (4), the rotation of the magazine (3) is stopped (step S70).

As a result, the magazine (3) is
The disk holding groove (31) of No. X of the disk newly inserted in F is initially set to the rotation angle facing the disk loading / unloading section (4), and the disk holding groove (31) of No. X It will be in a standby state to eject the disc. Then, the disc can be ejected by a subsequent operation.

[Power OFF Process] (Refer to FIGS. 19 to 28) First, when the power ON / OFF key (22) is pressed during power ON and the power OFF operation is performed, the press of the power ON / OFF key is detected. After that, it is determined in step S71 whether or not the magazine (3) is rotating. If the determination is NO, that is, if the magazine (3) is determined to be stopped, the process proceeds to step S72. The disc holding groove (31) of the disc
After confirming whether or not it has been moved to the position opposite to (4), the flow shifts to and executes the next step S117 in FIG.

In the case of YES, that is, when it is determined that the magazine (3) is rotating, in steps S73 and S74, the seventh sensor (SE7) and the kicking member retreat position detecting switch are set.
(SW6) is detected to be ON, and if NO in step S74, that is, if it is determined that the kicking member retreat position detection switch (SW6) is ON, the next step S8 in FIG.
7 and executed.

On the other hand, if YES in step S74 and the switch (SW6) for retreating the kick-out member is OFF, or if the seventh sensor (SE7) detects OFF in step S73, step S75 in FIG. Is executed, and in step S75, completion of chuck release is confirmed by a signal from the switch (SW8).

If the completion of chuck release is detected in step S75, step S81 in FIG. 21 is executed. If the completion of chuck release is not detected in step S75, the chucking motor is activated in step S76. Rotate in the counterclockwise direction, that is, in the chuck releasing direction.

Thereafter, in step S77, the switch (SW)
After the completion of chuck release is detected by the signal from 8), a 0.5 second timer is set in step S78.

Then, after detecting a time-out of 0.5 seconds in step S79, the chucking motor is stopped in step S80.

Next, in step S81 of FIG. 21, the loading motor on the play side is rotated in the counterclockwise direction, that is, in the direction of collecting the disc into the magazine (3).
At S83, the switch (SW6) and the seventh sensor (SE7)
After detecting N, a timer of 0.5 seconds is set in step S84.

Then, after a time-out of 0.5 seconds is detected in step S85, the loading motor on the play side is stopped in step S86.

On the other hand, when ON of the kick-out member retreat position detection switch (SW6) is detected in step S74 of FIG. 19, the completion of chuck release is determined by a signal from the switch (SW8) in step S87 of FIG. Is detected.

If the completion of chuck release is detected in step S87, step S93 in FIG. 23 is executed. If the completion of chuck release is not detected in step S87, the chucking motor is activated in step S88. Rotate in the counterclockwise direction, that is, in the chuck releasing direction.

Thereafter, in step S89, the switch (SW)
After the completion of chuck release is detected by the signal from 8), a 0.5 second timer is set in step S90.

After detecting the time-out of 0.5 seconds in step S91, the chucking motor is stopped in step S92.

Subsequently, in step S93 of FIG.
After confirming that all the sixth sensors (SE1) to (SE6) are ON, it is determined in step S94 whether the front-side kick-out member retreat position detection switch (SW4) is ON. Is determined.

If the determination in step S94 is NO, that is, if the switch of the front kick-out member retreat position detection switch (SW4) is detected to be OFF, the process proceeds to step S106 in FIG. 25 and is executed. If YES in S94, it is determined in step S95 whether or not the shutter is completely closed. If it is detected in step S95 that the shutter is completely closed, step S117 in FIG. 26 is performed. Move to and execute.

If it is detected in step S95 that the shutter is completely open, the shutter motor is rotated in the shutter closing direction in step S96, and it is detected in step S97 that the shutter is completely closed. After that, a timer of 0.5 seconds is set in step S98 in FIG.

After detecting a time-out of 0.5 seconds in step S99, the shutter motor is stopped in step S100.

Subsequently, in step S101, the loading motor on the front side is turned clockwise, that is, the disc is loaded in the magazine.
(3) Rotate in the direction of carrying in, and in step S102, the front side kick-out member retreat position detection switch (SW
After detecting ON in 4), a timer of 0.5 seconds is set in step S103.

Then, after a time-out of 0.5 seconds is detected in step S104, the loading motor on the front side is stopped.

As a result, the kick-out member on the front side moves to the retreat end which is the initial position.

On the other hand, in step S94 in FIG. 23, the kick-out member on the front side is not detected at the retracted position and the switch (S
If OFF of W4) is detected, a disk check flag "1" is set in step S106 in FIG. 25 to check whether or not an abnormality has occurred in the data in the nonvolatile memory (201) based on the presence or absence of the disk. Thereafter, as described above, the disk check program function is executed in accordance with the flowcharts shown in FIGS.

Thereafter, in step S107, the loading motor on the front side is rotated clockwise, that is, in the direction in which the disc is loaded into the magazine (3).
With the front side kick-out member retreat position detection switch
After detecting ON of (SW4), 0.5 is detected in step S109.
Set the second timer.

Then, after a time-out of 0.5 seconds is detected in step S110, the loading motor on the front side is stopped.

Subsequently, the shutter motor is rotated in the shutter closing direction in step S112 of FIG. 26, and after detecting that the shutter is completely closed in step S113, a 0.5 second timer is set in step S114. set.

After detecting a time-out of 0.5 seconds in step S115, the shutter motor is stopped.

Next, in step S117 in FIG. 26, the nonvolatile memory (201) of the microprocessor (200) is checked, and the presence or absence of a disk in the magazine (3) is checked by the disk holding groove.
It is determined whether or not it is written for each number of (31).

As a result, when it is determined that there is no disc in the magazine (3), it is confirmed whether or not the disc holding groove (31) at the position facing the disc loading / unloading section (4) is No. 4. In step S118 in FIG. 27, the amount of movement when the disk number position of No. 4 moves to the position facing the disk insertion port is one pitch of the disk holding groove (31) of the magazine (3). It is determined whether or not the magazine is present. If NO, the magazine is driven to rotate at a high speed by the magazine drive motor (step S119), and if YES, the magazine is driven to rotate at a low speed (step S120).

In step S118, the value of the storage section A of the nonvolatile memory (202) is set to 4. As described above, the position for fixing the magazine (3) to the base chassis (1) when moving the player is NO. This is because the disc storage groove No. 4 is located at a position facing the disc input / output unit (4).

Thereafter, it is determined in step S121 whether an ON signal has been input from the magazine rotation count sensor (SE8), and if YES, it is further determined in step S122 whether the rotation direction is left rotation. If it is counterclockwise rotation, the value of A is counted up by 1 in step S123, and if it is clockwise rotation, the value of A is counted down by 1 in step S124.

Then, in step S125, the value of A is compared with the disk number No. 4, and if they are equal, the process proceeds to step S126.
In step S127, a flag "1" is set to indicate that the disk number position of No. 4 is set at a position facing the disk insertion slot, and then the rotation of the magazine is stopped in step S127.
Thereafter, in step S128, "1" indicating that a disk is present is written in the disk number position of No. 4 in the table.

If it is determined in step S125 that the value of A does not match the disk number No. 4, it is determined in step S129 whether the difference between the two is 1 or not.
In the case of S, the rotational speed of the magazine is switched to a low speed in step S130, and the process returns to step S121.

According to the series of procedures described above, in the process of moving the disk accommodating groove (31) of the disk number No. 4 one pitch before the disk accommodating groove (31) from the position facing the disk slot, the magazine ( Rapid movement is performed by the high-speed rotation of 3), and in the subsequent one-pitch movement process, accurate positioning is performed by the low-speed rotation of the magazine (3).

On the other hand, if it is determined in step S117 of FIG. 26 that there is a disk in the magazine (3), the value of the storage unit A of the volatile memory (202) is set to 5 and the disk is inserted. .Disk holding groove at a position opposite to the ejection part (4)
Confirm whether (31) is No. 5. Then, in step S131, it is determined whether or not the amount of movement when the disk number position of No. 5 moves to the position facing the disk slot is one pitch of the disk holding groove (31) of the magazine (3). If NO, the magazine is driven to rotate at high speed by the magazine drive motor (step S132), and if YES, the magazine is driven to rotate at low speed (step S133).

Thereafter, it is determined in step S134 whether an ON signal has been input from the magazine rotation count sensor (SE8), and if YES, it is further determined in step S135 whether the rotation direction is left rotation. In the case of left rotation, the value of A is counted up by 1 in step S136, and in the case of right rotation, the value of A is counted down by 1 in step S137.

In step S138, the value of A is compared with the disk number No. 5, and if they are equal, the value of N is determined in step S139.
After setting a flag "1" indicating that the disk number position of o.5 is set at a position facing the disk insertion slot, the rotation of the magazine is stopped in step S140. afterwards,
In step S141, "1" indicating that a disk is present is written in the disk number position of No. 5 in the table.

If it is determined in step S138 that the value of A does not match the disk number No. 5, it is determined in step S142 whether the difference between the two is 1 or not.
In the case of S, the rotational speed of the magazine is switched to a low speed in step S143, and the process returns to step S134.

According to the above series of procedures, in the process of moving the disk accommodation groove (31) of the disk number No. 5 one pitch before the disk accommodation groove (31) from the position facing the disk insertion slot, the magazine ( Rapid movement is performed by the high-speed rotation of 3), and in the subsequent one-pitch movement process, accurate positioning is performed by the low-speed rotation of the magazine (3).

[0128]

According to the above processing, when the apparatus is moved after the power switch is opened, the presence or absence of the disk in the magazine (3) can be recognized beforehand.
(3) After being taken out from the inside, the magazine (3) can be fixed to the base chassis, thereby preventing damage to the disk due to vibration or the like caused by movement of the apparatus and protecting the disk.

The description of the above embodiments is for the purpose of illustrating the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made within the technical scope described in the claims.

[0131]

According to the disk player control device of the present invention, when the power of the disk player is turned on, it is determined whether or not the disk has been stored in the magazine (3) when the power switch was opened before that time. . And the magazine
When it is determined that a disk is stored in (3), the disk is automatically set with a disk accommodation groove (31) at a position facing the disk loading / unloading section (4).
The disc can be ejected in a subsequent operation. Therefore, after turning on the power switch, double storage of the disk in the disk storage groove (31) is prevented beforehand,
The disk can be prevented from being damaged, and the mechanism operation after turning on the power switch can be safely performed.

When the power switch of the disk player is opened, it is determined whether or not there is a disk in any of the disk storage grooves (31) in the magazine (3).
When it is determined that there is no disk in the magazine (3), the magazine (3) is positioned at a position that can be fixed to the base chassis, so that the magazine (3) is fixed to the base chassis (1). can do. Also a magazine
If it is determined that there is a disk in (3), the magazine
Since (3) is positioned at a position that cannot be fixed to the base chassis, the magazine (3) cannot be fixed to the base chassis (1). Therefore, when the apparatus is moved after the power switch is opened, the presence or absence of a disk in the magazine (3) can be recognized in advance depending on whether or not the magazine (3) can be fixed. And the magazine (3) can be fixed to the base chassis (1), thereby preventing damage to the disk due to vibration or the like caused by movement of the apparatus, and protecting the disk.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a disc player.

FIG. 2 is a schematic plan view of the disc player.

FIG. 3 is a perspective view of a front panel.

FIG. 4 is a block diagram illustrating a configuration of a control device.

FIG. 5 is a diagram showing a table provided in a nonvolatile memory.

FIG. 6 is a diagram illustrating two storage units provided in a volatile memory.

FIG. 7 is a flowchart of a process from rotating a magazine to rotating a play-side loading motor in a disk check.

FIG. 8 is a flowchart of a process of writing the presence or absence of a disk in a table in a disk check.

FIG. 9 is a flowchart of a process until a loading motor on the play side is stopped in a disk check.

FIG. 10 is a flowchart of a process of releasing a chuck and retracting a play-side kick-out member in an initial process.

FIG. 11 is a flowchart of a shutter closing process in the initial process.

FIG. 12 is a flowchart of a process for retracting a front-side kick-out member in an initial process.

FIG. 13 is a flowchart of a process for rotating a magazine to an initial position in an initial process.

FIG. 14 is a flowchart showing a process when the power switch is turned on for the first time after an AC outlet is connected in the initial process.

FIG. 15 is a flowchart showing a process when the power switch is turned on for the first time or more after the AC outlet is connected in the initial process.

FIG. 16 is a flowchart showing a process of checking the presence / absence of a disc in a magazine in the initial process, rotating the magazine when a disc is present, and setting a disc accommodating groove in a disc loading / unloading section in a signal reproducing section; It is.

FIG. 17 is a flow chart showing a process in an initial process until a disc in a disc accommodation groove in a signal reproducing unit is disc-chucked, a disc is discriminated in the disc accommodation groove, and a magazine is rotated.

FIG. 18 is a flowchart showing a process of setting a disk accommodation groove at a position facing a disk loading / unloading unit and stopping the magazine in the initial processing.

FIG. 19 is a flowchart of a process of determining whether or not a magazine is stopped in a power-off process and, when the magazine is stopped, retreating a kick-out member on the play side.

FIG. 20 is a flowchart showing a process of turning off the chuck by rotating the chucking motor and stopping the chucking motor when the kick-out member on the play side is not at the retreat position in the power-off process.

FIG. 21 is a flowchart of a process of rotating a play-side loading motor and retreating the play-side kick-out member in the power-off process.

FIG. 22 shows a process of checking the disc chuck on the play side again, rotating the chucking motor, and stopping the chucking motor when the play side kick-out member is at the retreat position in the power OFF process. It is a flowchart.

FIG. 23: In the power-off processing, check that the front kick-out member and the shutter are closed,
9 is a flowchart showing a process until the shutter motor is rotated to detect that the shutter is closed.

FIG. 24 is a flowchart showing a process of stopping a shutter motor and rotating a front-side loading motor until stopping the loading motor in a power-off process.

FIG. 25 is a diagram showing a process for turning on the front-side loading motor and stopping the rotation of the front-side loading motor after setting the disk check flag when the front-side kick-out member is at the kick-out position in the power-off process; It is a flowchart which shows a process.

FIG. 26 is a flowchart showing a process of turning off the shutter motor after stopping the shutter motor in the closing direction and determining whether there is a disk in the magazine in the power-off process.

FIG. 27 shows that the value of A in the volatile memory is changed to 4 when it is determined that there is no disc in the magazine in the power-off process.
Is a flowchart showing a process from rotating the magazine to stopping the magazine so that the disk accommodating groove of the No. 4 is set at the fixed position of the magazine after setting the No. 4.

FIG. 28: In the power-off process, when it is determined that there is a disk in the magazine, the value of A in the volatile memory is set to 5
Is a flowchart showing a process from rotating the magazine to stopping the magazine so that the disk accommodating groove of the No. 5 is set at the fixed position of the magazine after setting No. 5.

FIG. 29 is a perspective view of a conventional disc player.

FIG. 30 is a sectional view of the above.

[Explanation of symbols]

 (1) Base chassis (2) Front panel (3) Magazine (4) Disc loading / unloading section (5) Disc upper guide member (6) Front side transfer device (6a) Play side transfer device (7) Slide member (8) ) Slide plate (9) Signal playback unit (10) Screw hole for magazine fixing (31) Disk accommodation groove (41) Rotating shutter D disk

(72) Inventor Masanao Yoshida 2-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (56) References JP-A-2-96977 (JP, A) (58) Fields investigated (Int.Cl. ⁶ , DB name) G11B 17/22

Claims (2)

(57) [Claims] 1. A plurality of disk storage grooves around a center of rotation.
A rotatable magazine (3) in which (31) is formed substantially radially,
A magazine rotating mechanism for rotating and driving the magazine (3); a disk loading / unloading unit (4) and a signal reproducing unit (9) arranged at positions offset from each other on the side of the rotation transition path of the magazine (3).
And a first transfer device (6) for transferring a disk between the disk loading / unloading unit (4) and the magazine (3), and a disk transfer between the signal reproducing unit (9) and the magazine (3) In the disc player provided with a second delivery device (6a) for performing the following, the first delivery device (6) is controlled so that the disc loaded in the disc loading / unloading section (4) is loaded into the magazine (3). A first control means for carrying the disk into the disk storage groove (31) and controlling the magazine rotating mechanism to rotate the disk storage groove (31) to a position facing the signal reproducing unit (9); The transfer device (6a) of No. 2 is controlled to transfer the disk in the disk storage groove (31) installed at a position facing the signal reproducing unit (9) toward the signal reproducing unit (9), and to transfer the disk. A second control means for collecting the disc into the magazine (3); The installed disc storage groove position facing the reproducing unit (9) (31) a disk-on
Third control means for rotating to a position facing the ejection section (4), disc detection means installed at the entrance of the signal reproduction section (9) and detecting a disc heading to the signal reproduction section (9), A shutter opening detecting means installed in the disk loading / unloading section (4) for detecting that a shutter (41) provided at the disk loading opening of the disk loading / unloading section so as to be openable and closable; At the time of closing, the shutter opening detecting means checks whether the shutter (41) is open, and if it is confirmed that the shutter (41) is open, the first
The control means sets the disk storage groove (31) from the position facing the disk loading / unloading section (4) to the position facing the signal reproducing section (9), and then controls the disk storage groove (31) by the second control means. 31)
The disc is transported toward the signal reproducing unit (9), and the presence or absence of the disc is determined by the disc detecting means. If the discrimination indicates that the disc is present in the disc storage groove (31), (3) A fourth control means for setting the disk at a position facing the disk loading / unloading section (4).
A control device for a disc player, comprising a control means. 2. A plurality of disk storage grooves around a center of rotation.
A disk player provided with a rotatable magazine (3) having (31) formed substantially radially, a control means for rotating the disk storage groove (31) of the magazine (3) by one pitch, and the magazine (3) Disk presence / absence determination means for determining whether or not there is a disk in any of the disk storage grooves (31), and when the power is turned off, the disk presence / absence determination means determines that there is no disk in the magazine (3). In this case, the control means positions the magazine (3) at the first position, and when the disc presence / absence determination means determines that there is a disk in the magazine (3), the control means causes the magazine (3) to be positioned. A controller for a disc player, wherein (3) is positioned at a second position.