KR100504781B1 - Optical disk player - Google Patents

Abstract

The present invention relates to a conventional optical disc reproducing apparatus and a control method thereof, comprising a plurality of optical sensors provided on an upper plate of a main body, a main roller for retracting and taking out a disc, and a roller driving device for driving the main roller. The sensor includes a third optical sensor installed on the upper plate within the radius of the small disk at the center of the spindle to determine the presence of the disk in the disk playback apparatus; And an initial recognition step of determining whether there is a disc when any one of the optical sensors detects the disc when the optical disc player and the optical disc player are turned on. An optical disc ejecting step of ejecting the disc when it is determined that the disc is present in the initial recognition step; By providing a method for controlling an optical disc reproducing apparatus, the optical disc reproducing apparatus is prevented from malfunctioning by detecting and ejecting a disc in the case when the power is turned off while the disc is inserted and then turned on again.

Description

Optical Disc Player {OPTICAL DISK PLAYER}

The present invention relates to an optical disc reproducing apparatus and a method of controlling the same. Specifically, when the power is turned off while the disc is inserted and the power is turned on again, the optical disc reproducing apparatus is malfunctioned because the disc is not detected. An optical disc reproducing apparatus which has been prevented and a control method thereof.

In general, an optical disc reproducing apparatus includes a tray feeding method and a blade disc feeding method. The blade disk conveying method is also called slot loading method, which is a method of inserting a disk into a tray and transporting the disk by inserting it into a slot. In order to facilitate the loading and ejection of the disc, the slot-loading optical disc reproducing apparatus must include a sensing device capable of recognizing the type and position of the disc.

1 and 2 show the structure of a conventional optical disc reproducing apparatus, FIG. 1 is a plan view of an optical disc reproducing apparatus when a large disc is inserted, and FIG. 2 is a plan view of an optical disc reproducing apparatus when a small disc is inserted.

The conventional optical disc reproducing apparatus includes a main frame (1), a main roller (20) rotatably installed at an inlet side into which the optical disc (15) is inserted, and the main frame (1) to rotate the inserted optical disc (15). It comprises a spindle 14 coupled to the sensing device for sensing the disk 15, and a roller driving device (not shown) for driving the main roller 20.

The sensing device is composed of an optical sensor installed on the upper plate of the body frame 11, the optical sensor is all installed on the inlet side of the main roller (20).

The optical sensor includes a first optical sensor 811, a second optical sensor 812, a third optical sensor 813, and a fourth optical sensor 814.

When the optical disk 15 is inserted into the inlet, when any one of the optical sensors recognizes the optical disk 15 to operate the roller driving device, the roller driving device drives the main roller 20 to drive the optical disk ( Receive 15).

When the disc eject button is input, the controller (not shown) of the optical disc reproducing apparatus operates the roller driving device to drive the main roller 20, and the main roller 20 discharges the inserted optical disc 15. do.

FIG. 1 is a diagram illustrating the process of ejecting the large disk 15 step by step.

When the large disc 15 is located at the large disc ejection stop position II, that is, when the fourth sensor 814 recognizes the disc, the main roller 20 stops driving.

2 is a view showing step by step the process of ejecting the small disk 15b.

When the small disk 15b is located at the small disk ejecting stop position II, that is, when the third sensor 813 recognizes the disk, the main roller 20 stops driving.

As described above, the optical disc reproducing apparatus can smoothly insert and discharge the optical disc by using a plurality of optical sensors.

However, when the optical disc player is used as a portable device, when the battery is discharged, the battery is replaced, or the power is reconnected after the power is suddenly shut down, the optical disc player does not recognize the existence of the disc inside and malfunctions. There is a problem in that it is duplicated, causing a failure of the device.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and when the power is turned off while the disc is inserted, when the power is turned on again, the optical disc is detected by detecting the disc therein and preventing the optical disc playing device from malfunctioning. It is an object of the present invention to provide an apparatus and a control method thereof.

In order to achieve the above object, the present invention provides a disk having a size of two or more including a plurality of optical sensors installed on the upper plate of the main body, a main roller for drawing out and drawing out the disk, and a roller driving device for driving the main roller. A disk loading apparatus of a slot loading method capable of playing back, the optical sensor comprising: a third optical sensor installed on a top plate within a radius of a small disk at the center of the spindle to determine the presence or absence of a disk in the disk playback apparatus; Provided is an optical disk reproducing apparatus, comprising:

In addition, the third optical sensor is preferably installed on the upper end of the outer circumferential surface of the large disk discharge stop position so that the discharge of the large disk can be measured.

The optical sensor may further include a fourth optical sensor installed at an upper end of the outer circumferential surface of the small disk discharging stop position to measure the discharge amount of the small disk.

In addition, the optical sensor is installed on the opposite side of the fourth optical sensor to the center of the optical line of the optical disk, in order to distinguish the type of the disk during ejection, the large disk larger than the radius of the small disk in the center of the optical disk ejection stops ejecting When in the position it is preferably configured to further include a first optical sensor installed in the upper surface position of the large disk.

On the other hand, according to another field of the present invention, as a method for controlling the optical disc playback device, when the power of the optical disc playback device is turned on, if any one of the optical sensor detects the disk initial recognition to determine the presence of the disk Steps; An optical disc ejecting step of ejecting the disc when it is determined that there is a disc in the initial recognition step; In the initial recognition step, if it is determined that there is no disk, a waiting step of waiting for insertion of a disk by a user; Provided is a method of controlling an optical disk reproducing apparatus.

The control method may further include: a recognizing step of determining that a disc exists when any one of the optical sensors detects the disc in the standby step; If it is determined that there is a disc in the recognizing step, an optical disc retracting step of operating the roller driving device to allow the main roller to retract the disc; It is preferable to further include.

The ejecting step may include: a disc identification step of identifying a type of the ejected disc; A large disk ejecting step of transferring the disk to a large disk stop position when the disk identified in the disk identification step is a large disk and then stopping the transfer; A small disc ejecting step of transferring the disc to a small disc stop position if the disc identified in the disc identification step is a small disc and then stopping the transfer; It is effective to include.

In the disc identification step, when the first optical sensor recognizes the disc in the disc ejection process, the disc is determined to be a large disc. When the first optical sensor does not recognize the disc in the disc ejection process, the disc may be determined as a small disc. .

In the large disk ejecting step, when the third optical sensor does not recognize the disk during the disk transport, it is effective to stop the disk transport.

In the disc ejection step, it is preferable to stop the disc transfer when the fourth optical sensor does not recognize the disc during the disc transfer.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, in describing the present invention, a detailed description of known functions or configurations will be omitted in order not to disturb the gist of the present invention.

In addition, the same reference numerals are given to the same and the same components as those described above, and detailed description thereof will be omitted.

3 to 5 are diagrams showing the structure of an optical disc reproducing apparatus according to an embodiment of the present invention, FIG. 3 is a plan view of an optical disc reproducing apparatus showing the process of discharging a large disc, and FIG. 4 is a small disc being discharged. FIG. 5 is a flowchart illustrating a control method implemented by a controller of the optical disc reproducing apparatus. Referring to FIG.

As shown in these drawings, the optical disc reproducing apparatus of an embodiment of the present invention includes a main frame 20, a main roller 20 installed to be rotatable on an inlet side into which the optical disc 15 is inserted, and an inserted optical disc ( A spindle 14 coupled to the main body frame 1 to rotate 15, a sensing device for sensing the disk 15, a roller driving device (not shown) for driving the main roller 20, and And a control unit for controlling the playback device.

The sensing device is composed of an optical sensor installed on the upper plate of the body frame (11).

The optical sensor includes a first optical sensor 821, a second optical sensor 822, a third optical sensor 823, and a fourth optical sensor 824.

The third optical sensor 823 is located within the radius of the small disk 15b at the center 816 of the spindle so as to determine the presence or absence of the disk in the disk reproducing apparatus, and discharged when the large disk 15 is discharged. It is installed on the upper end of the outer peripheral surface of the large disk discharge stop position (II) shown in FIG.

The fourth optical sensor 824 is installed at the upper end of the outer circumferential surface of the small disk discharge stop position (IV) as shown in FIG. 4 so that the discharge amount of the small disk 15b can be measured.

The first optical sensor 821 is installed on the opposite side of the fourth optical sensor 824 with respect to the center moving line 815 of the optical disk, and the center moving line 815 of the optical disk to distinguish the type of the disk during discharge. In the case where the large disk 15 is larger than the radius of the small disk 15b and is in the discharge stop position II, the upper surface of the large disk 15 is installed.

The second optical sensor 822 is installed at an intermediate position between the first optical sensor 821 and the fourth optical sensor 824. The function of the second optical sensor 822 is to prevent the disk from reaching the main roller 20 without being recognized by the first sensor 821 or the fourth sensor 824. That is, in the second optical sensor 822, when the small disk 15b is inserted between the first optical sensor 821, the end of the small disk 15b is in contact with the main roller 20. While the first optical sensor 821 or the second optical sensor 822 should be sensed before, the small disk 15b is interposed between the second optical sensor 822 and the fourth optical sensor 824. When inserted, the end of the small disk 15b is installed at the position detected by the fourth optical sensor 824 or the second optical sensor 822 before contacting the main roller 20.

5 is a flowchart illustrating a control method of the controller.

The control method of the optical disc player of the control unit includes an initial recognition step 910 of determining whether a disc exists when the power of the optical disc player is turned on, and the inserted disc 15 when the user inserts the disc 15. A loading step 920 for receiving and loading, a reproducing step 930 for reproducing the loaded disc, a disc ejection determining step 940 for determining whether a disc ejection command is input, and a disc ejection determining step 940 In the case where it is determined that the disc ejection command is input or in the initial recognition step 910, it is configured to include an optical disc ejection step 980 for ejecting the disc 15.

In the initial recognition step 910, when the power of the optical disc reproducing apparatus is turned on, when any one of the optical sensors 821 to 824 detects the disc, the initial recognition step 910 determines that the disc is present. Discharge.

The loading step 920 is a standby step 921 of waiting for the user's disc insertion when it is determined that there is no disk in the initial recognition step 910, and the optical sensor 821 ~ in the waiting step 921 If any one of the 824 detects the disc, the recognizing step 922 to determine that the disc is present, and if it is determined that the disc is present in the recognizing step 922, the roller driving device is operated to operate the main roller. And an optical disc insertion step 923 for causing 20 to insert the disc 15.

The reproducing step 930 is a step of reproducing the optical disc 15 according to a user's input signal when loading of the optical disc 15 is completed in the loading step 920. The configuration for this is already known.

The optical disc ejection step 980 includes a disc identification step 950 for determining whether the ejected disc is a large disc or a small disc, and a large disc when the disc identified in the disc identification step 970 is a large disc. After the transfer to the disc stop position (II), the large disc ejection step 980 stops the transfer, and when the disc identified in the disc identification step 970 is a small disc, the disc is moved to the small disc stop position (IV). It comprises a small disk discharge step 960 to stop the transfer after the transfer.

In the disc identification step, when the first optical sensor 821 recognizes the disc during disc ejection, it is determined as a large disc. If the first optical sensor 821 does not recognize the disc during disc transfer, it is determined as a small disc.

The large disc ejection step 980 is configured to stop the transfer of the disc if the third optical sensor 823 does not recognize the disc during disc transfer. That is, in FIG. 3, when the disc is located at the large disc stop position (II), the third optical sensor 823 does not recognize the disc but recognizes the disc. At this time, the discharging process of the large disk is terminated by stopping the transfer.

The small disc ejection step 960 is configured to stop the transfer of the disc when the fourth optical sensor 824 does not recognize the disc while the disc is being transferred. That is, when the disk is located at the small disk stop position (IV) in FIG. 4, the fourth optical sensor 824 recognizes the disk but does not recognize it. At this time, the discharging process of the large disk is terminated by stopping the transfer.

Hereinafter, the operation of one embodiment of the present invention will be described.

When the power of the optical disc player is turned on, the controller performs an initial recognition step 910. That is, when any one of the optical sensors 821 to 824 detects the disk, it is determined that the disk exists and the discharge step 980 is performed. Since the third optical sensor 823 is located within the radius of the small disk 15b at the center 816 of the spindle, the third optical sensor 823 can detect all the positions of the small disk. Therefore, when the power is suddenly turned off during disc play or when the battery is discharged, when the power is connected again, the disc inside is discharged through the discharge step 980.

If the disk is not detected in the initial recognition step 910, the process is switched to the standby step 921, and the user inserts the disk and waits for any one of the optical sensors 821 to 824 in the standby step 921. In case of sensing, it is determined that the disk is present in the recognizing step 922, the roller driving device is operated in the retracting step 923, and the main roller 20 retracts the disc 15 to complete loading. . At this time, the second optical sensor 822 is located in the middle of the first optical sensor 821 and the fourth optical sensor 824, so that the main optical roller 20 before the inserted optical disk is in contact with the main roller 20. By driving, the optical disc can be loaded more naturally.

When the user inputs a playback signal, the disk 15 is played back in the playback step 930.

When the disc ejection signal of the user is input or it is determined that there is a disc in the initial recognition step 910, the disc is ejected in the ejection step 980.

If the first optical sensor 821 recognizes the disc during disc ejection, it is determined to be a large disc. If the first optical sensor 821 does not recognize the disc during disc transfer, it is determined to be a small disc. That is, in the case of the large disk 15, the lower surface of the first optical sensor 821 passes through the discharge as shown in FIG. 3, but in the case of the small disk 15b, the large disk 15 is removed during the discharge as shown in FIG. 1 does not pass through the lower surface of the light sensor 821. Therefore, the first optical sensor 821 detects the large disk 15 while the small disk 15b cannot detect the discharge.

If it is recognized as a large disk proceeds to the large disk discharge step 980. In the large disc ejection step 980, if the third optical sensor 823 does not recognize the disc during disc transfer, the disc transfer is stopped. That is, in FIG. 3, when the disc is located at the large disc stop position (II), the third optical sensor 823 does not recognize the disc but recognizes the disc. At this time, the discharging process of the large disk is terminated by stopping the transfer.

If it is recognized as a small disk, the small disk ejecting step 960 proceeds. In the small disc ejection step 980, the disc transfer is stopped when the fourth optical sensor 824 does not recognize the disc while the disc is being transferred. That is, when the disk is located at the small disk stop position (IV) in FIG. 4, the fourth optical sensor 824 recognizes the disk but does not recognize it. At this time, the discharging process of the large disk is terminated by stopping the transfer.

As described above, by exiting the discharge process before the discharged disk is completely released from the main roller 20, to prevent the disk is completely separated and falling to the outside.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope of the claims.

According to the embodiment of the present invention as described above, various effects including the following matters can be expected. However, the present invention is not achieved by exerting all of the following effects.

First, the optical disc reproducing apparatus of the present invention prevents the optical disc reproducing apparatus from malfunctioning by detecting and ejecting a disc in the power source when the power is turned off and then on again when the disc is inserted.

In addition, the second optical sensor is located in the middle of the first optical sensor and the fourth optical sensor, so that the optical disk can be loaded more naturally by driving the main roller before the inserted optical disk contacts the main roller.

Then, by discharging the discharge process before the disc is completely released from the main roller, the disc is completely removed and prevented from falling out.

1 and 2 show the structure of a conventional optical disc reproducing apparatus,

1 is a plan view of an optical disc reproducing apparatus when a large disc is inserted;

2 is a plan view of an optical disc reproducing apparatus when a small disc is inserted;

3 to 5 show the structure of the optical disc reproducing apparatus of the embodiment of the present invention.

3 is a plan view of an optical disk reproducing apparatus showing the process of ejecting a large disk step by step;

4 is a plan view of an optical disc reproducing apparatus showing a step of ejecting a small disc;

5 is a flowchart illustrating a control method implemented by a control unit of an optical disc player;

** Description of the symbols for the main parts of the drawings **

20: main roller 815: optical disk moving center line

821: first optical sensor 822: second optical sensor

823: third optical sensor 824: fourth optical sensor

910: initial recognition stage 921: standby stage

922: incoming recognition step 923: incoming step

950: disc identification step 960: small disc ejection step

970: ejecting a large disc 980: ejecting a large disc

Claims (13)

delete A slot-loading disc reproducing apparatus capable of reproducing two or more sizes of discs including a plurality of optical sensors provided on the upper plate of the main body, a main roller for retracting and taking out a disc, and a roller driving device for driving the main roller. The optical sensor A third disc installed on the upper plate within the radius of the small disc at the center of the spindle so as to determine the presence or absence of the disc in the disc reproducing apparatus, and installed on the upper end of the outer circumferential surface of the large disc discharging stop position to measure the discharge amount of the large disc. An optical sensor; Optical disc playback device characterized in that it comprises a. The method of claim 2, wherein the optical sensor And a fourth optical sensor installed on the outer circumferential surface of the small disc discharging stop position to measure the discharge amount of the small disc. The method of claim 3, wherein the optical sensor It is installed on the opposite side of the fourth optical sensor around the center line of the optical disk, In order to distinguish the type of disc during ejection, when the large disc is larger than the radius of the small disc in the center line of the optical disc is located in the discharge stop position, characterized in that it further comprises a first optical sensor installed in the upper surface position of the large disc Optical disc player. The method of claim 4, wherein the constant optical sensor And a second optical sensor disposed at an intermediate position between the first optical sensor and the fourth optical sensor, wherein the second optical sensor includes the first optical light before the small disc contacts the main roller when inserted. And a second optical sensor and a first optical sensor and a second optical sensor. The method of claim 2, wherein the optical sensor And a first optical sensor disposed at a position larger than the radius of the small disk and smaller than the radius of the large disk in the center line of the optical disk to distinguish the midstream of the disk during ejection. A method of controlling the optical disc reproducing apparatus according to any one of claims 2 to 6, An initial recognition step of determining whether a disc is present when any one of the optical sensors detects the disc when the optical disc player is turned on; An optical disc ejecting step of ejecting the disc when it is determined that the disc is present in the initial recognition step; Control method of an optical disk playback device comprising. A method of controlling the optical disc reproducing apparatus of claim 5, An initial recognition step of determining whether a disc is present when any one of the optical sensors detects the disc when the optical disc player is turned on; An optical disc ejecting step of ejecting the disc when it is determined that there is a disc in the initial recognition step; In the initial recognition step, if it is determined that there is no disk, a waiting step of waiting for insertion of a disk by a user; Optical disc playback device control method comprising a. The method of claim 8, A recognizing step of determining that there is a disk when any one of the optical sensors detects the disk in the standby step; If it is determined that there is a disc in the recognizing step, an optical disc retracting step of operating the roller driving device to allow the main roller to retract the disc; The control method of the optical disc playback device, characterized in that further comprises. The method of claim 8, wherein the discharge step A disc identification step of identifying the type of disc to be ejected; A large disk ejecting step of transferring the disk to a large disk stop position when the disk identified in the disk identification step is a large disk and then stopping the transfer; A small disc ejecting step of transferring the disc to a small disc stop position if the disc identified in the disc identification step is a small disc and then stopping the transfer; Optical disc playback device control method comprising a. The method of claim 10, wherein the disc identification step And if the first optical sensor recognizes the disc in the disc ejection process, determines that the disc is a large disc. If the first optical sensor does not recognize the disc in the disc ejection process, the disc is determined to be a small disc. The method of claim 10, wherein the large disk ejecting step If the third optical sensor does not recognize the disk during the disk transfer, the optical disk playback device control method characterized in that for stopping the disk transfer. The method of claim 10, wherein the small disk ejecting step The method of controlling an optical disc reproducing apparatus, characterized in that the disc transfer is stopped when the fourth optical sensor does not recognize the disc while the disc is transferred.