KR101648450B1 - Data reproducing method, and reproducing apparatus - Google Patents

Abstract

The present invention provides a method of reproducing 3D image data recorded on a recording medium, the method comprising: confirming whether a data playback apparatus supports a 3D image; Checking whether a video output device connected to the data playback device supports 3D video; And reproducing the three-dimensional image data when the data reproducing apparatus and the video output apparatus support the three-dimensional image, wherein the reproducing step comprises the steps of: Determining whether an output screen to be synchronized is synchronized; And synchronizing the reproduction screen and the output screen when the reproduction screen and the output screen are not synchronized. According to the present invention, the three-dimensional image data can be efficiently reproduced in the data reproducing apparatus and the video output apparatus that support the three-dimensional image. In addition, the reproduction screen and the output screen can be efficiently synchronized.

3D image, 3D mode, playback screen, output screen, synchronization, device status information, PSR

Description

DATA REPRODUCING METHOD AND REPRODUCING APPARATUS [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data reproducing method and a reproducing apparatus, and more particularly to a reproducing method and apparatus for reproducing three-dimensional video data.

Recently, a recording medium having a high capacity has emerged due to the rapid development of the technology. Such recording media include a Blu-ray Disc, a Near Field Recording Medium, and the like.

Although the initial recording medium plays a main function to reproduce a low-capacity two-dimensional image, functions of reproducing a three-dimensional image requiring a high capacity are required while high-capacity recording media appear. Accordingly, a recording medium on which three-dimensional image data is currently recorded and apparatuses for reproducing the same are being developed.

Also, in a situation where a device capable of reproducing only two-dimensional image data and a device capable of reproducing three-dimensional image data are mixed, a method of efficiently reproducing three-dimensional image data recorded on a recording medium is required.

An object of the present invention is to provide a method and apparatus for efficiently reproducing three-dimensional image data and reproducing three-dimensional image data in a correct three-dimensional image at the time of reproducing data on a recording medium.

Accordingly, the present invention provides a method of reproducing a 3D image, comprising: confirming whether a data reproducing apparatus supports a 3D image; Checking whether a video output device connected to the data playback device supports 3D video; And reproducing the three-dimensional image data recorded on the recording medium when the data reproducing apparatus and the video output apparatus support the three-dimensional image, wherein the reproducing step comprises the steps of: And confirming whether an output screen to be output to the user is synchronized; And synchronizing the reproduction screen and the output screen when the reproduction screen and the output screen are not synchronized.

In the present invention, the three-dimensional image data may include image data of the left time; And the right video data, and the reproducing step successively reproduces the video data of the left time and the video data of the right time, which display the same three-dimensional video, Dimensional image data to be reproduced and the three-dimensional image data to be output to the output screen are matched to image data of the same time.

In the present invention, the synchronizing step includes an embodiment of inserting a copy of the video data of the left time adjacent to the video data of the left time.

Further, in the present invention, the synchronization step includes an embodiment of deleting the image data of the right time.

Further, the present invention includes an embodiment including the step of outputting a display for guiding the wearing of the three-dimensional image reproducing glasses.

Further, the data reproducing apparatus checking step and the video output apparatus checking step of the present invention include an embodiment using apparatus state information including reproduction related information of the data reproducing apparatus.

In addition, the apparatus state information includes an embodiment including a 3D image support field of the image output apparatus.

Further, the present invention includes an embodiment including the step of reproducing the left-time video data or the right-time video data when the data reproducing apparatus or the video output apparatus does not support the three-dimensional video.

According to another aspect of the present invention, there is provided a recording apparatus comprising: a reading unit reading data on a recording medium; A storage unit in which information related to the recording medium is recorded; And controlling the reading unit to read the three-dimensional image data on the recording medium to confirm whether or not the data reproducing apparatus supports the three-dimensional image, and determining whether the image output apparatus connected to the data reproducing apparatus supports the three- Dimensional image data, and when the data reproducing apparatus and the video output apparatus support a three-dimensional image, the control unit controls the display unit to display the three- And a data reproducing apparatus for checking whether an output screen to be output to a user is synchronized and synchronizing the reproduction screen and the output screen when the reproduction screen and the output screen are not synchronized.

In the present invention, the three-dimensional image data may include image data of the left time; And the right side video data, and the control unit continuously reproduces the video data of the left time and the video data of the right time, which display the same three-dimensional video, and reproduces the three-dimensional video And synchronizing the reproduction screen and the output screen by matching the data and the three-dimensional image data to be output to the output screen with image data of the same time.

The control unit may include an embodiment for inserting a copy of the video data of the left time adjacent to the video data of the left time to synchronize the playback screen and the output screen.

Further, the present invention is characterized in that the control section includes an embodiment for deleting the video data at the right-hand side and synchronizing the reproduction screen and the output screen.

Further, in the present invention, the control section includes an embodiment for outputting a display for guiding wearing of the three-dimensional image reproducing glasses.

Further, the present invention includes an embodiment in which the control unit confirms the data reproduction device and confirms the video output device, using device state information recorded in the storage unit and including reproduction-related information of the data reproduction device.

In addition, the apparatus state information includes an embodiment including a 3D image support field of the image output apparatus.

In addition, the control unit may include an embodiment for reproducing the left-side video data or the right-side video data when the data reproducing apparatus or the video output apparatus does not support the three-dimensional video.

It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will reveal.

According to the data reproducing method and the data reproducing apparatus of the present invention, it is possible to efficiently reproduce the three-dimensional image data in the data reproducing apparatus and the video output apparatus supporting the three-dimensional image. In addition, the reproduction screen and the output screen can be efficiently synchronized.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. In the following description, the same constituent elements are given the same names and the same symbols for convenience of explanation.

Although the terms used in the present invention are selected as general terms that are widely used at present, there are some terms selected arbitrarily by the applicant in specific cases. In this case, since the meaning is described in detail in the description part of the present invention, The present invention should be grasped as a meaning of the term.

The data reproducing apparatus of the present invention is an apparatus capable of reproducing a recording medium of various standards. In the present invention, the recording medium means any medium in which data is recorded or recordable. For example, it is meant to encompass all media, regardless of the recording method, such as a disc or a magnetic tape. Hereinafter, the present invention will be described with reference to a disc, particularly a Blu-ray disc (BD) as a recording medium, but the technical idea of the present invention is also applicable to other recording media It will be self-evident.

The general contents of the PSR (Player Status Register) in which the status information of the data reproducing apparatus is recorded in the present invention are disclosed in US Publication No. 2007/0286576 A1 and the BD (Blu-ray Disc Association) Technical White Paper.

FIG. 1 illustrates the integrated use of a recording medium, a data reproducing apparatus, and a peripheral device according to an embodiment of the present invention. The recording medium and the data reproducing apparatus according to the embodiment of the present invention provide a three-dimensional image to a user.

As a method of providing a three-dimensional image to a user, a binocular disparity can be used in which the same object is viewed from different directions with right and left eyes and a three-dimensional feeling is obtained. According to this, a two-dimensional image having a binocular disparity is separately output to the left eye and the right eye separately. Then, through the special glasses such as the polarizing filter glasses, the left image is alternately exposed to the right eye of the user in the left eye of the user, thereby providing a three-dimensional image to the user.

A recording medium (Recording Mentium) 10 is a recording medium 10 on which three-dimensional image data is recorded, and three-dimensional image data is image data in which a three-dimensional image is recorded in a specific format. The three-dimensional image data is composed of left-time image data and right-time image data. Therefore, the video data of the left time and the video data of the right time are recorded in the recording medium 10.

Then, the data player (Player) 11 reads and decodes the three-dimensional image data recorded on the recording medium 10. That is, the image data of the left time and the image data of the right time are successively read and decoded into one three-dimensional stereoscopic image data. The decoded three-dimensional image data is provided to the video output device 12. [

A display output device (display player) 12 renders the decoded 3D image data in the data reproducing device 11 and outputs the 3D image data to a user. Then, the user wears a three-dimensional reproducing glasses 13, which is glasses such as polarizing filter glasses, which can appreciate a three-dimensional image, and thus, the user views the three-dimensional image.

Specifically, the video output device 12 successively outputs the left-side video and the right-side video that display one three-dimensional video, and the user uses the three- The left-eye image in the right eye is output to the left eye.

In the present invention, the stereoscopic method in which the three-dimensional reproducing glasses 13 are required is exemplified, but the present invention is also applicable to the autostereoscopic method.

Accordingly, in order to provide a three-dimensional image to a user, it is necessary to provide a recording medium 10 on which the above-described three-dimensional image data is recorded, a data reproducing apparatus 11 capable of reproducing three-dimensional image data, A three-dimensional reproduction environment including the video output device 12 having the video output device 12 is required.

When the reproduction data reproducing apparatus 11 or the video output apparatus 12 capable of outputting a three-dimensional image is not provided, the data reproducing apparatus 11 can provide a three-dimensional image to the user none. However, the data reproducing apparatus 11 may provide the user with a two-dimensional image of the three-dimensional image data. Only the left-side image or the right-side image is reproduced to the user in the three-dimensional image.

Therefore, a method of reproducing the three-dimensional image data in accordance with the reproduction environment provided by the user becomes necessary. Hereinafter, a method of reproducing the three-dimensional image by the data reproducing apparatus 11 will be described.

2 is a flowchart of a method of reproducing 3D image data according to an embodiment of the present invention.

In the reproducing method of the present invention, the data reproducing apparatus 11 can reproduce the three-dimensional image data in two reproduction modes (Reproducing Mode). That is, the data reproducing apparatus 11 can reproduce the 3D image data in a 2D mode or a 3D mode.

In the two-dimensional mode, the data reproducing apparatus 11 reproduces the three-dimensional image data as a two-dimensional image. In the three-dimensional mode, the data reproducing apparatus 11 reproduces the three-dimensional image data as a three-dimensional image.

The playback mode of the data playback apparatus 11 is determined by the type of video data to be played back or the user's selection. When the image data to be reproduced is two-dimensional image data, the data reproducing apparatus 11 should reproduce in the two-dimensional mode. When the video data to be reproduced is three-dimensional video data, the data reproducing apparatus 11 can reproduce the video data in the two-dimensional mode or the three-dimensional mode. Further, even when the image data to be reproduced is three-dimensional image data, if the user desires to reproduce the three-dimensional image data two-dimensionally, the data reproducing apparatus 11 can reproduce in the two-dimensional mode.

A method of reproducing the three-dimensional image data by the data reproducing apparatus 11 including the above-described reproduction mode is as follows.

First, when the recording medium 10 on which the three-dimensional image data is recorded is loaded on the data reproducing apparatus 11, the data reproducing apparatus 11 proceeds with initialization. (S100) The apparatus 11 prepares the reproduction of the recording medium 10 by setting a variable necessary for reproduction of the recording medium 10 or reading information relating to reproduction of the recording medium 10

After the initialization, the data reproduction apparatus 11 sets the reproduction mode to the two-dimensional mode (S110). The reproduction environment of the user, that is, the recording medium 10, the data reproduction apparatus 11, Dimensional image is not supported.

The data reproducing apparatus 11 can reproduce the three-dimensional image data recorded in the recording medium 10 in the two-dimensional mode according to the reproduction environment of the user. That is, when the image data recorded on the recording medium 10 is two-dimensional image data, not three-dimensional image data, the data reproducing apparatus 11 can not reproduce the three-dimensional image or is connected to the data reproducing apparatus 11 When the video output apparatus 12 fails to output a three-dimensional video, the data reproducing apparatus 11 reproduces the three-dimensional video data in two dimensions. Even when the user does not wear the three-dimensional reproducing glasses 13, the data reproducing apparatus 11 can reproduce the three-dimensional image in the two-dimensional mode.

Then, the data reproducing apparatus 11 can reproduce the three-dimensional image data recorded on the recording medium 10 in the two-dimensional mode at the user's selection. For example, the data reproducing apparatus 11 can reproduce the three-dimensional image data in the two-dimensional mode, that is, as a two-dimensional image in accordance with the menu selection of the user or the environment setting of the data reproducing apparatus 11. [ The data reproducing apparatus 11 reproduces only the left-time video data or the right-time video data included in the three-dimensional video data, and reproduces them as a two-dimensional video.

When the video data recorded on the recording medium 10 is three-dimensional video data or when the user's three-dimensional mode is selected, the data reproducing apparatus 11 sets the reproducing mode of the data reproducing apparatus 11 in the two- You can switch to Dimension mode.

In order to switch the reproduction mode from the two-dimensional mode to the three-dimensional mode, the data reproducing apparatus 11 performs a task of switching the reproduction mode to the three-dimensional mode (S300) Dimensional mode can be switched, and the reproduction mode is switched to the three-dimensional mode or the two-dimensional mode is maintained.

For example, whether the user's playback environment supports three-dimensional images or the like can be confirmed. When the user's playback environment supports three-dimensional images, the data playback device 11 switches the playback mode to the three-dimensional mode. However, when the user's playback environment does not support the three-dimensional image, the data playback apparatus 11 can not switch the playback mode to the three-dimensional mode, and maintains the two-dimensional mode.

A method of switching the reproduction mode to the three-dimensional mode in the data reproducing apparatus 11 will be described in detail with reference to FIG.

When the reproduction mode of the data reproducing apparatus 11 is switched to the three-dimensional mode, the data reproducing apparatus 11 reproduces the three-dimensional image data as a three-dimensional image (S400) The data and the video data of the right time are continuously reproduced and reproduced in a three-dimensional image.

Further, even when the data reproduction apparatus 11 is in the three-dimensional mode, the reproduction mode can be switched to the two-dimensional mode by the user's selection or the like. In this case, the data reproducing apparatus 11 reproduces the three-dimensional image data as a two-dimensional image and provides it to the user.

3 is a flow diagram of a method for switching to a three-dimensional mode in accordance with an embodiment of the present invention.

First, the data reproducing apparatus 11 confirms whether or not the data reproducing apparatus 11 supports the three-dimensional image (S310). In other words, the data reproducing apparatus decodes the three- Check whether there is.

Since the three-dimensional image data includes the left-side image data and the right-side image data, the data reproducing apparatus 11 supporting the three-dimensional image displays the left side image data and the right side image The data must be reproducible continuously.

Whether or not the data reproducing apparatus 11 supports the three-dimensional image can be confirmed using the device status information. The device status information may be recorded in a storage device provided in the data reproducing apparatus 11 and may be a parameter or related information necessary for the data reproducing apparatus 11 to reproduce the 3D image data recorded on the recording medium 10 .

The data reproducing apparatus 11 determines whether or not the data reproducing apparatus 11 supports the three-dimensional image in the step S100 in which the recording medium 10 is loaded and the data reproducing apparatus 11 initializes the apparatus state information Can be recorded. Therefore, the data reproducing apparatus 11 can quickly check whether the data reproducing apparatus 11 supports the three-dimensional image through the pre-stored device status information.

For example, the device state information of the present invention may be configured as a PSR (Player Status Register) of the data reproducing apparatus 11, and the PSR will be described in detail with reference to FIG.

When the data reproducing apparatus 11 supports a three-dimensional image, the data reproducing apparatus 11 confirms whether the image output apparatus 12 connected to the data reproducing apparatus 11 supports the three-dimensional image. (S320), that is, whether or not the video output apparatus 12 can output the decoded three-dimensional video data in the data reproducing apparatus.

The image output device 12 supporting the three-dimensional image must be capable of continuously outputting the left-side image and the right-side image that display the same three-dimensional image.

Whether or not the video output device 12 supports the three-dimensional image can be confirmed by using the device status information. The data reproducing apparatus 11 can record in the device status information whether or not the video output apparatus 12 supports the three-dimensional video in the initializing step S100. The data reproducing apparatus 11 can receive the three-dimensional image support of the video output apparatus 12 through communication with the video output apparatus 12, and record the received information in the apparatus status information. Therefore, the data reproducing apparatus 11 can quickly check whether the video output device 12 supports the three-dimensional video through the pre-stored device status information.

When the data reproducing apparatus 11 or the video output apparatus 12 does not support the three-dimensional image, the three-dimensional image data recorded on the recording medium 10 can be reproduced as a three-dimensional image and can not be provided to the user . Therefore, the data reproducing apparatus 11 can not switch the reproduction mode to the three-dimensional mode. Dimensional mode.

Therefore, the data reproducing apparatus 11 must reproduce the three-dimensional image data in the two-dimensional mode. As described above, the data reproducing apparatus 11 should reproduce only the left-side video data or the right-side video data and provide the same to the user.

If the data reproducing apparatus 11 or the video output apparatus 12 does not support the three-dimensional image, the data reproducing apparatus 11 may be configured so that even if there is a compulsory request from the user to switch the reproducing mode to the three- It is possible to prevent the reproduction mode from being switched to the three-dimensional mode.

When the data reproducing apparatus 11 and the video output apparatus 12 support a three-dimensional image, the three-dimensional image data recorded on the recording medium 10 may be provided to the user as a three-dimensional image.

In order to reproduce the three-dimensional image data to the user, the data reproducing apparatus 11 can reproduce to the user a guiding indication to wear the three-dimensional reproducing glasses 13 capable of reproducing the three-dimensional image (S330)

The step S330 of displaying the wearing instruction of the three-dimensional reproducing glasses 13 is required in the stereoscopic stereoscopic image reproduction environment and is omitted in the three-dimensional image reproduction environment of the autostereoscopic system .

The data reproducing apparatus 11 may be configured to only reproduce the wearing instruction display of the three-dimensional reproducing glasses 13 and further may be configured to receive information confirming that the user wears the three-dimensional reproducing glasses 13 from the user .

After reproducing the three-dimensional image data, the data reproducing apparatus 11 confirms whether the reproduced three-dimensional image data is outputted as a three-dimensional image in the image output apparatus 12 (S340)

As described above, the three-dimensional image data reproduced by the data reproducing apparatus 11 is outputted as a left-time image and a right-time image in the video output apparatus 12. [ The video output device 12 successively outputs the video of the left time and the video of the right time that display the same three-dimensional video.

Then, the image at the left time should be output to the left eye of the user, and the image at the right time should be output to the right eye of the user. Therefore, the video output device 12 should output the video of the left time at the time when the user's left eye is exposed, and output the video of the right time at the time when the user's right eye is exposed. That is, the output screen to be output to the user must coincide with the reproduction screen to be reproduced by the data reproducing apparatus 11. [

However, when the data reproducing apparatus 11 reproduces the three-dimensional image data, the reproduction screen and the output screen may not coincide with each other. The playback screen and the output screen are not synchronized. For example, the data reproducing apparatus 11 reproduces the image at the right time at the time when the user's left eye is exposed (when the output screen is the image at the left time) and displays the time at which the user's right eye is exposed In the case of the video of the left side).

When the reproduction screen and the output screen do not coincide with each other, this may occur when the video output device 12 and the 3D reproduction glasses 13 are not synchronized. Due to the time delay that occurs when the data reproducing apparatus 11 decodes the three-dimensional image data or when the data reproducing apparatus 11 transmits the three-dimensional image data to the video output apparatus 12, The playback screen and the output screen may not match.

The data reproducing apparatus 11 can confirm that the reproduction screen and the output screen are not synchronized with each other through communication with the video output apparatus 12 or the 3D reproduction glasses 13. [ It can also be confirmed by the user's input.

When the reproduction screen and the output screen are not synchronized, the data reproduction apparatus 11 can not reproduce the correct three-dimensional image to the user. That is, the data reproducing apparatus 11 can not reproduce the three-dimensional image data as a three-dimensional image having a three-dimensional effect desired by the author.

Accordingly, the data reproducing apparatus 11 must synchronize the reproduction screen with the output screen (S350, Set Display Order). The data reproducing apparatus 11 causes the three-dimensional image data of the reproduction screen to coincide with the image data of the output screen do. That is, the data reproducing apparatus 11 reproduces the image of the left time at the time when the left eye of the user is exposed (when the output image is the image of the left time) Video) is reproduced at the right time. Accordingly, the data reproducing apparatus 11 can provide the user with a three-dimensional image having a correct stereoscopic effect.

A method of synchronizing the playback screen and the output screen will be described in detail later with reference to FIG. 5 and FIG.

After synchronizing the reproduction screen and the output screen, the data reproduction device 11 reaffirms whether the video output device 12 outputs the correct three-dimensional video. Then, the data reproducing apparatus 11 reproduces the three-dimensional image data as a three-dimensional image.

Hereinafter, the device state information recorded as to whether or not the data reproducing apparatus 11 and the video output apparatus 12 support the three-dimensional image will be described below. In the present invention, the device status information is composed of a PSR (Player Status Register).

4 is a structural diagram of a PSR according to an embodiment of the present invention.

The PSR of the present invention is recorded in the storage device of the data reproduction apparatus 11. [ For example, the PSR may be recorded in the storage unit 150 of the data reproduction apparatus 11 to be described later. The PSR records the variables and related information necessary for the data reproducing apparatus 11 to reproduce the three-dimensional image data recorded on the recording medium 10.

The PSR includes general playback information and three-dimensional playback information. The general playback information is information related to the recording medium 10 loaded in the data playback apparatus 11 and includes menu language information PSR18, region code information PSR19, Information (PSR 20), and the like. The three-dimensional reproduction information is information related to the reproduction of the three-dimensional image data by the data reproduction apparatus 11, and includes information such as whether the user's reproduction environment supports the three-dimensional image. The three-dimensional reproduction information will be described in detail as follows.

The PSR includes information on whether or not the data reproducing apparatus 11 supports a three-dimensional image (Player Capability). The three-dimensional image support information of the data reproducing apparatus 11 may be recorded in the item 23 of the PSR (PSR23), and may be composed of a Boolean value. For example, a value of "0" indicates that the data reproducing apparatus 11 does not support the three-dimensional image, and a value of "1" indicates that the data reproducing apparatus 11 supports the three-dimensional image.

The PSR includes information on the current playback mode (Current Player Mode) of the data playback apparatus 11. Information on the playback mode is recorded in Item 24 (PSR24) of the PSR, and can be configured with a Boolean value. For example, a value of "0" indicates that the reproduction mode of the data reproduction apparatus 11 is a two-dimensional mode, and a value of "1" indicates that the reproduction mode of the data reproduction apparatus 11 is a three-dimensional mode.

In addition, the PSR includes information (Displayer Capability) about whether the video output device 12 connected to the data reproducing apparatus 11 supports 3D video. The three-dimensional image support information of the video output device 12 may be recorded in the PSR 25 of the PSR, and may be composed of a Boolean value. For example, a value of "0" indicates that the image output apparatus 12 does not support the three-dimensional image, and a value of "1" indicates that the image output apparatus 12 supports the three-dimensional image.

The data reproducing apparatus 11 can confirm whether or not the data reproducing apparatus 11 can reproduce the three-dimensional image data by using the PSR 23. The data reproducing apparatus 11 can reproduce the three- Can output a three-dimensional image.

Accordingly, the data reproducing apparatus 11 uses the PSR 23 and the PSR 25 to check whether the user's reproduction environment supports the three-dimensional image. If the user's reproduction environment supports the three-dimensional image, the data reproduction apparatus 11 converts the reproduction mode of the data reproduction apparatus 11 into the three-dimensional mode, and reproduces the three-dimensional image data as a three-dimensional image.

Then, the data reproduction apparatus 11 can confirm the reproduction mode of the present data reproduction apparatus 11 by using the PSR24. That is, the data reproducing apparatus 11 can confirm whether the three-dimensional image data based on the data reproducing apparatus 11 is reproduced as a two-dimensional image or reproduced as a three-dimensional image using the PSR24.

The data reproducing apparatus 11 records the corresponding information in the PSR 23, the PSR 24 and the PSR 25. (Player Setting) As an example, the data reproducing apparatus 11 performs a step of loading the recording medium and initializing the data reproducing apparatus 11 S100), it can be recorded in the PSR 23 whether the data reproducing apparatus 11 supports the three-dimensional image. The data reproducing apparatus 11 can receive information on whether the image output apparatus 12 supports the three-dimensional image by communicating with the connected image output apparatus 12, and can write the information to the PSR 25.

Accordingly, the data reproducing apparatus 11 can quickly check whether the user's reproduction environment supports the three-dimensional image through the stored device status information, that is, the PSR. This is because, for example, whenever the data reproducing apparatus 11 confirms whether or not three-dimensional video is supported by the video output apparatus 12, it can be easily confirmed through the PSR 25 without communicating with the video output apparatus 12. [

Hereinafter, a method of synchronizing the reproduction screen and the output screen will be described in detail. As described above, when the reproduction screen and the output screen are not synchronized, an image having a correct stereoscopic effect is not displayed, and the user can not reproduce a correct three-dimensional image. Therefore, the data playback apparatus 11 is required to have a method of synchronizing the playback screen and the output screen.

5 is a conceptual diagram of a method of synchronizing a playback screen and an output screen according to the first embodiment of the present invention.

The three-dimensional image data is composed of left-side image data and right-side image data. The data reproducing apparatus 11 continuously reproduces the video data of the left time and the video data of the right time which display the same three-dimensional video. Accordingly, the video output device 12 repeatedly outputs the left-side video and the right-side video so that the three-dimensional video is output.

The drawing shows that a three-dimensional image is outputted as a repetition of a left-side image and a right-side image. Synchronizing the reproduction screen and the output screen coincides the three-dimensional image reproduced with the reproduction screen and the three-dimensional image to be outputted with the output screen with an image at the same time. That is, when the left eye is exposed at the time when the user's left eye is exposed (when the output screen is a video at the left time) and when the user's right eye is exposed Is reproduced.

In the first embodiment of the present invention, the video output device 13 skips one right-time video output from the video output device 13 to synchronize the reproduction screen and the output screen and outputs the same. In addition, the video output device 13 can skip an image of the left time, not the image of the right time, and output it.

Accordingly, the three-dimensional image reproduced on the reproduction screen and the three-dimensional image to be output on the output screen are images having the same time. Therefore, the data reproducing apparatus 11 reproduces the correct three-dimensional image to the user.

6 is a conceptual diagram of a method of synchronizing a playback screen and an output screen according to a second embodiment of the present invention.

In the second embodiment of the present invention, the data reproducing apparatus 11 inserts or deletes the three-dimensional image data reproduced by the data reproducing apparatus 11 in order to synchronize the reproduction screen and the output screen. As shown in the figure, the data reproducing apparatus 11 may copy one piece of video data of the left time and insert it adjacent to the video data of the left time, or delete one video data of the right time.

Alternatively, the data reproducing apparatus 11 may copy one right-time image data and insert it adjacent to the right-time image data, or delete one left-time image data.

Accordingly, the three-dimensional image reproduced on the reproduction screen and the three-dimensional image to be output on the output screen are images having the same time. Therefore, the data reproducing apparatus 11 reproduces the correct three-dimensional image to the user.

According to the second embodiment of the present invention, the data playback apparatus 11 provides the video output apparatus 12 with three-dimensional video data in which the playback screen and the output screen are synchronized. Accordingly, the image output device 12 can output a correct three-dimensional image without any other conversion process or operation procedure.

In synchronizing the reproduction screen and the output screen, the video data of the reference time can be set in advance. Since the image data of the left time and the image data of the right time are successively outputted in the three-dimensional image, the reference time is set in the left or right. In this case, the synchronization between the reproduction screen and the output screen described above is synchronized based on the video data of the reference time.

When the video data of the left time is set as the video data of the reference time, the video data of the left time is output to the video output device 12 after the reproduction screen and the output screen are synchronized. That is, according to the first embodiment of the present invention, when the video output device 12 skips the video data of the right time or the data reproducing device 11 of the second embodiment of the present invention does not skip One of the video data is inserted so that the video data of the left time is output after the reproduction screen and the output screen are synchronized.

7 is a block diagram of a data reproducing apparatus according to an embodiment of the present invention.

The data reproducing apparatus 11 according to the present invention will be described in detail. First, the reading unit 70 reads data from the recording medium 10. The reading unit 70 may be constituted by a pickup 70 of the data reproducing apparatus 11 according to an embodiment of the present invention. The pickup 70 includes a laser diode therein to read a signal reflected from the surface of the recording medium 10 to read data.

 The servo 90 controls the tracking and focusing operations of the reading unit 70 and the operation of the spindle motor 110.

 The R / F unit 80 outputs a focus error signal and a tracking error signal, which are signals for detecting the focus deviation of the laser beam and the deviation of the track, from the signal output from the reading unit 70 .

The spindle motor 110 rotates the disk mounted on the data reproducing apparatus 11. [

The motor driving unit 100 drives the operation of the reading unit 70 and the spindle motor 110 under the control of the servo 90.

The signal processing unit 40 restores the RF signal received from the R / F unit 80 to a desired reproduction signal value.

The bit encoder 50 converts a signal output from the signal processor 40 into a bit stream and the reading unit driver 60 converts the bit stream generated by the bit encoder 50 into an optical signal.

The storage unit 150 temporarily stores information related to the recording medium 10 such as defect information of the recording medium 10 or performs a buffer function for temporarily storing data to be reproduced on the recording medium 10 . In addition, the storage unit 150 stores device status information indicating whether the data playback apparatus 11 and the video output apparatus 12 support three-dimensional images. The device state information of the present invention may be configured as a PSR (Player Status Register).

The microcomputer 120 is configured to control the signal processing unit 40, the servo 90 and the storage unit 150 so that the drive including the components plays the data of the recording medium 10 .

The 3D control unit 130 controls the playback mode of the data playback apparatus 11. [ The reproduction mode of the data reproducing apparatus 11 includes a two-dimensional mode and a three-dimensional mode, and the data reproducing apparatus 11 reproduces the three-dimensional image data as a two-dimensional image in the two-dimensional mode, Dimensional image.

The 3D control unit 130 converts the reproduction mode of the data reproduction apparatus 11 from the two-dimensional mode to the three-dimensional mode. The 3D control unit 130 confirms the reproduction environment of the user and switches the reproduction mode of the data reproduction apparatus 11 to the three-dimensional mode. That is, the 3D control unit 130 confirms whether the data reproduction apparatus 11 and the video output apparatus 12 support the three-dimensional image. If the data reproducing apparatus 11 and the video output apparatus 12 support the three-dimensional image, the 3D control unit 130 switches the reproduction mode of the data reproducing apparatus 11 to the three-dimensional mode.

Also, the 3D control unit 130 synchronizes the reproduction screen and the output screen. It is not possible to provide a correct three-dimensional image to the user unless the reproduction screen reproduced by the data reproducing apparatus 11 and the output screen to be outputted from the video output apparatus 12 are synchronized. Accordingly, the 3D control unit 130 synchronizes the reproduction screen and the output screen to provide a three-dimensional image having a desired three-dimensional effect to the user.

The 3D control unit 130 copies one piece of video data of the left time on the playback screen and inserts it adjacent to the video data of the left time or deletes one piece of video data of the right time to synchronize the playback screen and the output screen.

The 3D control unit 130 is shown as one component, but the present invention is not limited thereto. The 3D control unit 130 may be implemented in a form integrated with the microcomputer 120 and / or the host 140. In this case, The 3D control unit 130 is connected to the signal processing unit 40, the bit encoder 50, the reading unit driving unit 60, the reading unit 70, the servo 90, the motor driving unit 100, the spindle motor 110, The microcomputer 120 and the storage unit 150 may be additionally connected to the drive so that the data can be updated.

The host 140 is responsible for controlling all components in the data reproduction apparatus 11 and controls reproduction of the recording medium 10 by interfacing with the user. More specifically, the host 140 transmits a command to the microcomputer 120 to cause the data reproducing apparatus 11 of the present invention to perform a specific function, and the microcomputer 120 transmits a command to the data reproducing apparatus 11 And controls the components configured to operate in conjunction with each other.

The microcomputer 120 and the host 140 may be separately provided and operate together and the functions of the microcomputer 120, the 3D control unit 130 and the host 140 may be integrated into one control unit 160 It is also possible to do.

Host 140 may be a computer, a server, an audio device, or a main controller of a video device. That is, the data reproducing apparatus 11 of the present invention may be an optical drive provided in a PC (Personal Computer) or the like, or may be a player not installed in a PC or the like.

Therefore, the data reproducing apparatus 11 according to the present invention can be applied to both an optical drive installed in a PC or the like and a player used as a stand-alone product.

The AV encoder 20 converts an input signal into a signal of a specific format that can be recorded on the recording medium 10 and transmits the converted signal to the signal processing unit 40 in order to record data on the recording medium 10. [

The AV decoder 30 finally decodes the reproduction signal of the recording medium 10 received from the signal processing unit 40 and provides it to the user as output data such as video and audio signals.

Further, the AV decoder 30 decodes the three-dimensional image data and provides it to the user. That is, the AV decoder 30 successively decodes the video data of the left time and the video data of the right time, which display the same three-dimensional video, and provides the decoded video data to the user.

The components of the data reproduction apparatus 11 according to the present invention described above can be implemented as software or hardware to perform respective functions, and software and hardware can be implemented by interlocking with each other.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And it goes without saying that the invention belongs to the scope of the invention.

FIG. 1 illustrates the integrated use of a recording medium, a data reproducing apparatus, and a peripheral device according to an embodiment of the present invention.

2 is a flowchart of a method of reproducing 3D image data according to an embodiment of the present invention.

3 is a flow diagram of a method for switching to a three-dimensional mode in accordance with an embodiment of the present invention.

4 is a structural diagram of a PSR according to an embodiment of the present invention.

5 is a conceptual diagram of a method of synchronizing a playback screen and an output screen according to the first embodiment of the present invention.

6 is a conceptual diagram of a method of synchronizing a playback screen and an output screen according to a second embodiment of the present invention.

7 is a block diagram of a data reproducing apparatus according to an embodiment of the present invention.

Claims (16)

Confirming whether the data reproducing apparatus supports three-dimensional images; Checking whether a video output device connected to the data playback device supports 3D video; And And reproducing the three-dimensional image data composed of the left visual image data and the right visual image data recorded on the recording medium when the data reproducing apparatus and the video output apparatus support the three-dimensional image, Wherein, Confirming whether a reproduction screen in which the 3D image data is reproduced and an output screen to be output to a user are synchronized; And inserting or deleting at least one of the left visual image data or the right visual image data for the non-synchronized reproduction screen when the reproduction screen and the output screen are not synchronized. delete delete delete The method according to claim 1, Wherein, And outputting a display for guiding wearing of the three-dimensional image reproducing glasses. The method according to claim 1, Wherein the data reproducing device checking step and the video output device checking step comprise: And device state information including playback related information of the data playback device. The method according to claim 6, The apparatus status information includes: Dimensional image support field of the image output apparatus. The method according to claim 1, And reproducing the left-time video data or the right-time video data when the data reproducing apparatus or the video output apparatus does not support the three-dimensional video. A reading unit for reading data on a recording medium; A storage unit in which information related to the recording medium is recorded; And The control unit controls the reading unit to read the three-dimensional image data composed of the left visual image data and the right visual image data on the recording medium, confirms whether the data reproducing apparatus supports the three-dimensional image, Dimensional image data when the data reproducing apparatus and the image output apparatus support the three-dimensional image, wherein the control unit controls the three- Wherein, Whether or not the reproduction screen on which the 3D image data is reproduced and the output screen to be output to the user are synchronized, And inserting or deleting at least one of the left visual image data and the right visual image data for the non-synchronized reproduction screen when the reproduction screen and the output screen are not synchronized. delete delete delete 10. The method of claim 9, Wherein, And outputs a display for guiding wearing of the three-dimensional image reproducing glasses. 10. The method of claim 9, Wherein, Wherein the data reproduction apparatus identification and the video output apparatus identification are recorded in the storage unit and use the device status information including the reproduction related information of the data reproduction apparatus. 15. The method of claim 14, The apparatus status information includes: Dimensional image support field of the image output apparatus. 10. The method of claim 9, Wherein, And reproduces the video data of the left time or the video data of the right time when the data reproducing apparatus or the video output apparatus does not support the three-dimensional video.

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