KR20050080868A - Optical drive for adjusting reproducing velocity of optical disc - Google Patents

Abstract

The present invention relates to a reproducing apparatus capable of adjusting the reproduction speed of an optical disc, comprising: a reproducing mode selecting means for selecting CLV and CAV, and a reproducing speed adjusting means for selecting a reproduction speed when the CLV mode is selected; Also, as an optical disc playback mode, a playback speed manual switching selection means for selecting an optical disk playback speed by manual adjustment and a playback speed at which a playback speed can be manually adjusted when selecting a playback mode by the manual adjustment are provided. Characterized in that the bar is provided, through which the user can realize the desired playback speed through a simple mechanical operation, there is an advantage that it is possible to efficiently play the optical disk.

Description

Optical drive for adjusting reproducing velocity of optical disc

The present invention relates to a reproducing apparatus for reproducing an optical disc, and more particularly, to a method for manually adjusting a reproduction speed during reproduction of an optical disc.

Optical recording media that can record large amounts of data (hereinafter referred to as "optical disks") continue to grow as CDs, DVDs, and next-generation DVDs (HD-DVD, BD etc.) Technological advances are being made.

In addition, the optical disc has been developed into a storage medium which can be used more conveniently by not only increasing the recording capacity but also improving the recording and reproducing speed.

In relation to this, there are two modes of recording and playback speeds for recording data on an optical disc and reproducing the recorded data, one of which is CAV (Constant Angular Velocity) mode and the other is CLV (Constant Linear). Velocity) mode.

The CAV method means recording and reproducing so that the same angular velocity is maintained in the entire disc area, and the CLV method means recording and reproducing so that the same linear velocity is maintained in the entire disc area. do.

Therefore, in terms of the inner and outer circumference of the disk, in the case of the CAV method, the linear velocity is larger than the inner circumference in the outer circumference in order to maintain the same angular velocity in the inner and outer circumference of the disk.

That is, the pickup for recording and reproducing (Fig. 3, 11) moves from the inner circumference to the outer circumference of the disc while recording and reproducing, the actual speed becomes faster toward the outer circumference, and the outermost circumference records at the highest speed supported by the optical recording / reproducing apparatus. Regeneration will be performed.

However, in the case of the reproduction, if the CAV reproduction speed is applied in all of the above cases, an unreasonable point occurs. First, there may be a case where the disc currently being used does not need the reproduction at the maximum speed. For example, in the case of a game disc or an audio disc, playback at the highest speed may cause only a noise to the user. Second, there may be a problem in data extraction when playing at the maximum speed for a long time.

Therefore, it will be necessary to introduce a method of manually adjusting the disc playback speed that is automatically determined as described above by the user.

Accordingly, the present invention has been made in view of the above circumstances, and provides a device for manually adjusting a playback speed by a user during playback of an optical disc. The purpose of the present invention is to provide the following technical problems. have.

In order to control the play speed to provide a play speed control means, and play mode (CLV, CAV) selection means,

The reproducing speed adjusting means and the reproducing mode (CLV, CAV) selecting means are provided in a form that the user can easily operate mechanically outside the recording and reproducing apparatus.

An apparatus for reproducing an optical disc according to the present invention for achieving the above object comprises a reproducing mode selecting means for selecting CLV and CAV as an optical disc reproducing mode, and a reproducing speed adjusting means for selecting a reproducing speed in selecting the CLV mode. Characterized in that provided,

Further, another optical disc reproducing apparatus according to the present invention is an optical disc reproducing mode, wherein the reproducing speed manual switching selection means selectable by the manual adjustment of the optical disc reproducing speed and the reproducing speed when the reproducing mode is selected by the manual adjustment are made. It characterized in that it comprises a regeneration speed control means that can be manually adjusted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a disc management information recording method and a reproducing apparatus of an optical disc according to the present invention will be described in detail with reference to the accompanying drawings.

In addition, the terms used in the present invention was selected as a general term widely used as possible now, but in certain cases, the term is arbitrarily selected by the applicant, in which case the meaning is described in detail in the description of the invention, The present invention is to be understood as the meaning of terms rather than names.

In addition, for the convenience of description, the optical recording and reproducing apparatus will generally be described with an example of an "optical drive" mounted on a PC or the like. In this regard, the "optical drive" of the present invention refers to an optical drive for reproduction only. And an optical drive capable of both recording and reproducing. However, since the technical problem of the present invention relates to the reproduction speed at the time of reproducing the optical disc, this will be referred to as an "optical disc reproducing apparatus".

1A and 1B relate to a first embodiment of an optical disc reproducing apparatus capable of adjusting a reproducing speed according to the present invention, wherein reproducing mode selecting means and reproducing speed adjusting means are separately provided.

That is, as a mechanical means operable by the user outside the optical disc playback apparatus 10, a playback mode selection means may be provided, for example, it may be formed as a switch in the form of a button. Therefore, when the user wants to change the playback mode of the disc being played from "CAV to CLV" or "CLV to CAV", the microcomputer (Figs. 3 and 16) in the playback apparatus can recognize the playback mode selection switch. The high signal is pressed for a while. At this time, the user can easily change the current playback mode by displaying the current playback mode as "CLV" or "CAV" on the display screen you are watching.

In the above process, if the user selects the "CLV" mode as the playback speed, as the mechanical means operable by the user outside the optical disc playback apparatus 10, the playback speed adjustment means is provided to manually adjust the playback speed. For example, by using a "volume terminal" that adjusts the amount of output audio generally present in the conventional optical disc player 10, it is possible to recognize the change of the volume terminal as the selection of the playback speed. You can do that. In this case, if the corresponding volume terminals are separately displayed for each play speed, the user can use them more conveniently. For example, the area of the volume terminals displaying the respective play speeds can be displayed in different colors. It could be that.

As described above, when the CLV mode is selected by the user and a specific playback speed is selected by adjusting the playback speed, the user may recognize the light emitting means outside the optical disc reproducing apparatus 10, for example, "LED". You can also provide the user with the playback speed. That is, for example, if two LEDs are provided, if all LEDs are off, it means 1x (1X) playback speed. If only the right LED is on, it means 2x (2X) playback speed. If only the LED is on, it means 4x (4X) playback speed. If all the LEDs are on, it can be defined as 8x (8X) playback speed. It is self-evident that it can be expressed.

FIG. 1B is a flowchart summarizing the playback speed manual adjustment method described above with reference to FIG. 1A from the standpoint of the microcomputers (FIGS. 3 and 16). By confirming the playback speed from the position of the current volume terminal (110), the final playback mode and the playback speed are determined (120), and then the current playback speed is displayed according to the predefined method through the LED light (130). In step 140, the control is performed to perform subsequent playback at the corresponding playback speed.

In connection with the above, the microcomputer (Figs. 3 and 16) has already provided the process of the operation in the form of a guide message on the display screen being viewed by the user, so that the manual adjustment of the playback speed can be made more convenient.

2A and 2B relate to a second embodiment of an optical disc reproducing apparatus capable of adjusting a reproduction speed according to the present invention, and includes a reproduction mode selection means and a reproduction speed adjusting means in one configuration, in particular, a reproduction mode selection means. By configuring the "playback speed manual switch", the user inputs a command to manually control the playback speed of the CLV method, it is characterized by continuously adjusting the playback speed using the corresponding switch.

That is, as a mechanical means operable by the user outside the optical disc reproducing apparatus 10, a reproducing speed manual switching switch is provided so that the reproducing speed is changed while the reproducing mode of the disc being played by the user is changed from CAV to CLV. When the manual adjustment is to be made, the playback speed manual switch is pressed so that a high signal is input for a time that can be recognized by the microcomputer (Figs. 3 and 16) in the playback apparatus. At this time, the current playback mode is displayed on the display screen being viewed by the user as "CLV" so that the user can confirm that the current playback mode has been changed to CLV.

Thereafter, whenever the user presses the manual playback speed manual switching switch continuously, the playback speed is changed, which is also changed as a light emitting means recognizable by the user outside the optical disc playback apparatus 10, for example, through "LED". The playback speed will be displayed to the user. That is, for example, if two LEDs are provided, if all LEDs are off, it means 1x (1X) playback speed. If only the right LED is on, it means 2x (2X) playback speed. If only the LED is on, it means 4x (4X) playback speed. If all the LEDs are on, it can be defined as 8x (8X) playback speed. It can be expressed as described above.

FIG. 2B is a flowchart summarizing the playback speed manual adjustment method described above with reference to FIG. 2A from the standpoint of the microcomputers (FIGS. 3 and 16). After that, it is checked whether the playback speed change signal is continuously input (210), and the final playback speed desired by the user is determined (220). Thereafter, the current playback speed is displayed through the LED lamp according to a predetermined method (230), and the subsequent playback at the corresponding playback speed is controlled to perform 240 (240). In connection with the above, the microcomputer (Figs. 3 and 16) has already provided the process of the operation in the form of a guide message on the display screen being viewed by the user, so that the manual adjustment of the playback speed can be made more convenient.

3 shows a detailed configuration of the optical disc reproducing apparatus of the present invention. As the reproducing apparatus, when the optical drive 10 is mounted inside a PC, the optical drive 10 may be the reproducing apparatus of the present invention. It will be apparent that an optical disc player, including the control unit 20 and the like, may be a playback device of the present invention.

In relation to this, a specific configuration in the optical drive 10 includes an interface unit 12 for communicating with the outside, a pickup unit 11 for directly recording or reproducing data on an optical disc, and a playback signal for the pickup unit. A data-processor 13 for receiving and restoring a desired signal value, or modulating and transmitting a signal to be recorded into a signal recorded on an optical disk, and accurately reading out a signal from the optical disk or accurately recording a signal on the optical disk. To control the pickup unit 11 to control the rotational speed of the disk, the memory 15 to temporarily store various information and data including management information, and to control the components in the optical drive. It is comprised by the microcomputer 16 in charge.

In the optical reproducing apparatus configured as described above, the method for adjusting the recording speed of the optical disc according to the present invention will be described in detail as described above with reference to FIGS. 1A and 2A. A selection "command, or a" playback speed manual switch "command, and / or a" playback speed adjustment "command are transmitted to the microcomputer 16 via the interface 12, and the microcomputer 16 receiving the command receives a servo ( 14), but in particular to control the disk rotation speed control servo (this is called "spindle servo") to control the disk to match the playback speed determined by the user.

As mentioned above, preferred embodiments of the present invention are disclosed for the purpose of illustration, and those skilled in the art can improve and change various other embodiments within the spirit and technical scope of the present invention disclosed in the appended claims below. , Replacement or addition would be possible.

Through the reproducing apparatus capable of adjusting the playing speed of the optical disc according to the present invention as described above, the user can implement the desired playing speed through a simple mechanical operation, there is an advantage that the efficient playback of the optical disc is possible. something to do.

1A and 1B relate to a first embodiment of an optical disc reproducing apparatus capable of adjusting a reproduction speed according to the present invention,

2A and 2B relate to a second embodiment of an optical disc reproducing apparatus capable of adjusting a reproduction speed according to the present invention,

3 shows an optical disc reproducing apparatus of the present invention.

-Description of the main parts in the drawing-

10: optical drive 20: host

16: microcomputer 14: servo

Claims (11)

As an optical disc playback mode, playback mode selection means capable of selecting CLV and CAV; And a reproducing speed adjusting means for selecting a reproducing speed when the CLV mode is selected. The method of claim 1, And the reproducing mode selecting means is constituted by a switch, and the reproducing mode is changed when the switch signal is high for a predetermined time or more. The method of claim 1, And the reproduction speed adjusting means uses a volume control terminal. The method of claim 3, wherein When using the volume control terminal as the playback speed control means, the optical disk playback apparatus, characterized in that for classifying the playback volume control terminal. The method of claim 1, And the reproducing speed adjusting means is formed in the same switch as the reproducing mode selecting means. The method of claim 5, And a playback speed is continuously selected after selecting a playback mode by using the switch. The method of claim 1, And a reproduction speed display means for displaying the adjusted reproduction speed. The method of claim 7, wherein And the play speed display means comprises a plurality of LEDs. An optical disc reproducing mode, the reproducing speed manual switching selecting means selectable of the optical disc reproducing speed by manual adjustment; And reproducing speed adjusting means capable of manually adjusting a reproducing speed when the reproducing mode is selected by the manual adjustment. The method of claim 9, And said reproducing speed manual switching selecting means and reproducing speed adjusting means comprise the same switch. The method of claim 10, In the same switch, the playback speed is manually adjusted after the playback speed manual switching is selected, characterized in that the playback speed adjustment is made.