KR20110015801A - Data reproducing method, and reproducing apparatus - Google Patents

Abstract

PURPOSE: A data reproduction method and a data reproduction device are provided to efficiently reproduce 3D image data in a data reproduction device and an image display device supporting a 3D image. CONSTITUTION: A data reproduction device checks 3D image support of a connected image display device(S320). The data reproduction device reproduces a wearing guide sign of 3D reproduction glasses image to a user(S330). The data reproduction device checks 3D image display of 3D image data in an image display device after reproducing 3D image data. The data reproduction device synchronizes a reproduction screen with a display screen(S350).

Description

DATA REPRODUCING METHOD, AND REPRODUCING APPARATUS}

The present invention relates to a method and apparatus for reproducing data, and more particularly, to a method and apparatus for reproducing three-dimensional image data.

Recent rapid development of technology has led to the emergence of high-capacity recording media. Such recording media include Blu-ray Disc, Near Field Recording Medium, and the like.

In the early days of recording media, the main function was to reproduce low-capacity two-dimensional images. However, with the emergence of high-capacity recording media, functions for reproducing three-dimensional images requiring high capacity are required. Accordingly, recording media on which 3D image data is recorded and devices for reproducing the same have been developed.

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 also 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 when reproducing data on a recording medium.

Accordingly, the present invention provides a method for determining whether a data reproducing apparatus supports a 3D image; Checking whether an image output apparatus connected to the data reproducing apparatus supports a 3D image; If the data reproducing apparatus and the image output apparatus support a 3D image, reproducing 3D image data recorded on a recording medium, and the reproducing step includes a reproduction screen on which the 3D image data is reproduced. Checking whether the output screen to be output to the user is synchronized; And synchronizing the playback screen with the output screen when the playback screen is not synchronized with the output screen.

In addition, the three-dimensional image data, the image data of the left eye; And image data of the right time, wherein the reproducing step reproduces the image data of the left time and the image data of the right time continuously displaying the same three-dimensional image, and the synchronizing step is the playback screen. And matching the three-dimensional image data to be reproduced with the three-dimensional image data to be output to the output screen with the image data of the same time.

In addition, the synchronizing may include an embodiment of inserting a copy of the image data of the left eye adjacent to the image data of the left eye.

In addition, the present invention includes the embodiment of deleting the image data of the right time.

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

In addition, the data reproducing apparatus confirming step and the image output device confirming step include an embodiment of using the device status information including the reproduction-related information of the data reproducing apparatus.

The present invention also includes an embodiment in which the device state information includes a 3D image support field of the image output apparatus.

The present invention also includes an embodiment including reproducing the image data of the left time or the image data of the right time when the data reproducing apparatus or the image output device does not support a 3D image.

In addition, the present invention provides a reader for reading data of a recording medium; A storage unit to record information related to the recording medium; And controlling the reader to read 3D image data from the recording medium, confirming whether the data reproducing apparatus supports the 3D image, and whether the image output device connected to the data reproducing apparatus supports the 3D image. And a controller for reproducing the 3D image data when the data reproducing apparatus and the image output apparatus support the 3D image, wherein the control unit includes: a playback screen on which the 3D image data is reproduced; The present invention provides a data reproducing apparatus which checks whether an output screen to be output to a user is synchronized, and synchronizes the reproduction screen with the output screen when the reproduction screen and the output screen are not synchronized.

In addition, the three-dimensional image data, the image data of the left eye; And image data of a right time, wherein the control unit continuously reproduces the image data of the left time and the image data of the right time displaying the same three-dimensional image and reproduces the image on the playback screen. And synchronizing the playback screen and the output screen by matching the three-dimensional image data to be output to the output screen with the image data at the same time.

The present invention also includes an embodiment in which the control unit inserts a copy of the image data at the left time adjacent to the image data at the left time to synchronize the playback screen and the output screen.

The present invention also includes an embodiment in which the controller deletes the video data of the right time to synchronize the playback screen and the output screen.

The present invention also includes an embodiment in which the controller outputs a display for guiding the wearing of the 3D image reproducing glasses.

The present invention also includes an embodiment in which the controller uses the device status information including the data reproducing device confirmation and the video output device confirmation, which are recorded in the storage unit and include the reproduction related information of the data reproducing device.

The present invention also includes an embodiment in which the device state information includes a 3D image support field of the image output apparatus.

The present invention also includes an embodiment in which the controller reproduces the image data of the left time or the image data of the right time when the data reproducing apparatus or the image output device does not support a 3D image.

The present invention is not limited to the above-described embodiment, and as can be seen in the appended claims, modifications can be made by those skilled in the art to which the present invention pertains, and such modifications are within the scope of the present invention. Reveal.

According to the data reproducing method and the data reproducing apparatus according to the present invention, the 3D image data can be efficiently reproduced by the data reproducing apparatus and the image output apparatus supporting the 3D image. In addition, the playback screen and the output screen can be efficiently synchronized.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. In the following description, the same components are given the same names and the same reference numerals for the convenience of description.

The terminology used in the present invention was selected as a general term that is widely used at present, but in some cases, the term is arbitrarily selected by the applicant, and in this case, the meaning of the term is described in detail in the description of the present invention. The present invention should be understood as meanings other than terms.

The data reproducing apparatus of the present invention is a device capable of reproducing a recording medium of various standards. In the present invention, the recording medium means any medium on which data is recorded or can be recorded. For example, it is meant to encompass all media regardless of the recording method such as disk or magnetic tape. Hereinafter, the present invention will be described by using a disc (Disc), particularly a Blu-ray Disc (BD), as a recording medium for convenience of description, but the technical spirit of the present invention is equally applicable to other recording media. It will be self explanatory.

General information on the PSR (Player Status Register) in which the status information of the data reproducing apparatus is recorded in the present invention is disclosed in BD published by US Publication No. US 2007/0286576 A1 and Blu-ray Disc Association (BDA). See Technical White Paper.

1 illustrates an integrated use between a recording medium, a data reproducing apparatus and a peripheral device according to an embodiment of the present invention. A recording medium and a data reproducing apparatus according to an embodiment of the present invention have a main function of providing a 3D image to a user.

As a method of providing a 3D image to a user, binocular disparity may be used to obtain a stereoscopic effect by viewing the same object in different directions with left and right eyes. According to this, a two-dimensional image having binocular disparity is separately outputted to the left eye and the right eye. Further, the 3D image is provided to the user in a manner of alternately exposing the left image to the left eye and the right image of the user through the special glasses such as polarization filter glasses.

The recording medium 10 is a recording medium 10 in which 3D image data is recorded, and the 3D image data is image data in which a 3D image is recorded in a specific format. The three-dimensional image data is composed of image data of the left view and image data of the right view. Therefore, the image data of the left time and the image data of the right time are recorded on the recording medium 10.

The data reproducing apparatus Player 11 reads and decodes the 3D video data recorded on the recording medium 10. That is, the video data at the left time and the video data at the right time are read successively and decoded into one three-dimensional stereoscopic video data. Decoded three-dimensional image data is provided to the image output device 12.

The image display apparatus 12 renders the 3D image data decoded by the data reproducing apparatus 11 and outputs the same to the user. In addition, the user wears three-dimensional reproduction glasses 13, which are glasses capable of viewing three-dimensional images, such as polarized filter glasses, to thereby enjoy three-dimensional images.

Specifically, the image output device 12 continuously outputs the image of the left time and the image of the right time displaying one 3D image, and the user outputs the image of the right time using the 3D reproduction glasses 13. The image of the left eye on the right is output to the left eye.

In the present invention, the glasses (Stereoscopic) method that requires the three-dimensional reproduction glasses 13 is illustrated, but the present invention can be applied to the autostereoscopic method.

Therefore, in order to provide a 3D image to a user, the recording medium 10 on which the above-mentioned 3D image data is recorded, a data reproducing apparatus 11 capable of reproducing 3D image data, and a 3D image may be output. There is a need for a three-dimensional playback environment that includes an image output device 12.

When the reproduction data reproducing apparatus 11 or the image output apparatus 12 capable of outputting the 3D image is not provided, the data reproducing apparatus 11 may provide the 3D image to the user. none. However, the data reproducing apparatus 11 may provide a user with a 2D image of 3D image data. In the 3D image, only the image of the left time or the image of the right time is reproduced to the user.

Accordingly, there is a need for a method of reproducing 3D image data in accordance with a reproduction environment provided by a user. A method of reproducing the 3D image by the data reproducing apparatus 11 will be described below.

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

In the reproducing method of the present invention, the data reproducing apparatus 11 may reproduce the 3D image data in two reproducing modes. That is, the data reproducing apparatus 11 may reproduce the 3D image data in the 2D mode or the 3D mode.

In the 2D mode, the data reproducing apparatus 11 reproduces the 3D image data as a 2D image, and in the 3D mode, the data reproducing apparatus 11 reproduces the 3D image data as a 3D image.

The reproduction mode of the data reproducing apparatus 11 is determined by the type of the image data to be reproduced or the user's selection. When the image data to be reproduced is two-dimensional image data, the data reproducing apparatus 11 must 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 in the two-dimensional mode or the three-dimensional mode. Also, even when the image data to be reproduced is three-dimensional image data, if the user wants to reproduce the three-dimensional image data in two dimensions, the data reproducing apparatus 11 can reproduce in the two-dimensional mode.

A method of reproducing 3D image data by the data reproducing apparatus 11 including the above-described reproducing mode is as follows.

First, when the recording medium 10 on which three-dimensional image data is recorded is loaded into the data reproducing apparatus 11, the data reproducing apparatus 11 performs initialization (S100). The apparatus 11 prepares the reproduction of the recording medium 10, sets parameters necessary for the reproduction of the recording medium 10, or reads information related to the reproduction of the recording medium 10.

After the initialization, the data reproducing apparatus 11 sets the reproducing mode to the two-dimensional mode (S110). The reproducing environment of the user, that is, the recording medium 10, the data reproducing apparatus 11, and the image output apparatus 12 is set to 3. This is because it is not known whether or not it supports dimensional images.

The data reproducing apparatus 11 may reproduce the 3D image data recorded on the recording medium 10 in the 2D mode according to the reproduction environment of the user. That is, when the image data recorded on the recording medium 10 is 2D image data instead of 3D image data, the data reproducing apparatus 11 may not reproduce the 3D image or may be connected to the data reproducing apparatus 11. When the image output apparatus 12 fails to output a 3D image, the data reproducing apparatus 11 reproduces the 3D image data in 2D. 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.

The data reproducing apparatus 11 may reproduce the 3D image data recorded on the recording medium 10 by the user's selection in the 2D mode. For example, according to a user's menu selection, environment setting of the data reproducing apparatus 11, or the like, the data reproducing apparatus 11 may reproduce 3D image data in a 2D mode, that is, as a 2D image. The data reproducing apparatus 11 reproduces only the image data of the left time or the image data of the right time contained in the three-dimensional image data, and reproduces the two-dimensional image.

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

In order to switch the reproduction mode from the two-dimensional mode to the three-dimensional mode, the data reproducing apparatus 11 performs the operation of switching the reproducing mode to the three-dimensional mode. In other words, the reproducing mode of the data reproducing apparatus 11 It is checked whether the user can switch to the three-dimensional mode, and the playback mode is switched to the three-dimensional mode or the two-dimensional mode is maintained.

For example, it may be determined whether the playback environment of the user supports the 3D image. If the user's playback environment supports three-dimensional images, the data playback device 11 switches the playback mode to the three-dimensional mode. However, if the user's playback environment does not support three-dimensional images, the data reproducing apparatus 11 cannot 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. 3.

When the reproducing mode of the data reproducing apparatus 11 is switched to the 3D mode, the data reproducing apparatus 11 reproduces the 3D image data into the 3D image. (S400) The data reproducing apparatus 11 displays the image of the left view. The data and the video data at the right time are reproduced in succession to reproduce the 3D video.

Further, even when the current reproduction mode is the three-dimensional mode, the data reproduction apparatus 11 can switch the reproduction mode to the two-dimensional mode by the user's selection or the like. In this case, the data reproducing apparatus 11 reproduces the 3D image data as a 2D image and provides the same to the user.

3 is a flowchart of a method for switching to a three-dimensional mode according to an embodiment of the present invention.

First, the data reproducing apparatus 11 confirms whether or not the data reproducing apparatus 11 supports a 3D image. [0035] That is, the data reproducing apparatus decodes and reproduces the 3D image data configured in a specific format. Check whether there is.

Since the 3D image data includes the image data of the left view and the image data of the right view, the data reproducing apparatus 11 supporting the 3D image displays the image data of the left view and the image of the right view displaying the same 3D image. The data must be able to be played back continuously.

Whether the data reproducing apparatus 11 supports the 3D image can be confirmed using the device state information. The device state information may be recorded in a storage device provided in the data reproducing apparatus 11, and parameters or related information necessary for the data reproducing apparatus 11 to reproduce the 3D image data recorded on the recording medium 10 may be stored. Is recorded.

The data reproducing apparatus 11 determines whether the data reproducing apparatus 11 supports three-dimensional images in the device state information in step S100 in which the recording medium 10 is loaded and the data reproducing apparatus 11 is initialized. Can record Accordingly, the data reproducing apparatus 11 may quickly determine whether the data reproducing apparatus 11 supports the 3D image through the prestored device state information.

For example, the device status information of the present invention may be configured as a player status register (PSR) of the data reproducing apparatus 11, which will be described in detail with reference to FIG.

When the data reproducing apparatus 11 supports the 3D image, the data reproducing apparatus 11 checks whether the image output apparatus 12 connected to the data reproducing apparatus 11 supports the 3D image. That is, it is checked whether the image output apparatus 12 can output decoded 3D image data in the data reproducing apparatus.

The image output apparatus 12 supporting the 3D image should be able to continuously output the image of the left time and the image of the right time displaying the same 3D image.

Whether the image output device 12 supports a 3D image can be checked using device state information. In the initializing step (S100), the data reproducing apparatus 11 may record whether the image output apparatus 12 supports a 3D image in the device state information. The data reproducing apparatus 11 may receive whether or not the image output apparatus 12 supports the 3D image through communication with the image output apparatus 12 and record it in the device state information. Accordingly, the data reproducing apparatus 11 may quickly determine whether the image output apparatus 12 supports the 3D image through the prestored device state information.

When the data reproducing apparatus 11 or the image output apparatus 12 does not support the 3D image, the 3D image data recorded on the recording medium 10 is reproduced as a 3D image and cannot be provided to the user. . Therefore, the data reproducing apparatus 11 cannot switch the reproducing mode to the three-dimensional mode. Will remain in two-dimensional mode.

Therefore, the data reproducing apparatus 11 must reproduce the 3D image data in the 2D mode. As described above, the data reproducing apparatus 11 should reproduce only the image data of the left time or the image data of the right time and provide it to the user.

If the data reproducing apparatus 11 or the image output apparatus 12 does not support the 3D image, the data reproducing apparatus 11 may be used even if a user requests to switch the reproducing mode to the 3D mode. It is possible to prevent the reproduction mode from switching to the three-dimensional mode.

When the data reproducing apparatus 11 and the image output apparatus 12 support a 3D image, the 3D image data recorded on the recording medium 10 may be provided to the user as a 3D image.

In order to reproduce the 3D image data to the user, the data reproducing apparatus 11 may reproduce the guide display to wear the 3D reproduction glasses 13 capable of reproducing the 3D image to the user (S330).

The step S330 of displaying the wearing guide of the 3D reproducing glasses 13 is required in the above-described stereoscopic 3D image reproducing environment, and is omitted in the autostereoscopic 3D image reproducing environment. Can be.

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

After reproducing the 3D image data, the data reproducing apparatus 11 checks whether the reproduced 3D image data is output as the 3D image from the image output apparatus 12 (S340).

As described above, the 3D image data reproduced by the data reproducing apparatus 11 is output by the image output apparatus 12 as an image of the left time and an image of the right time. The image output device 12 continuously outputs an image of the left time and an image of the right time displaying the same three-dimensional image.

The image of the left eye should be output to the left of the user and the image of the right eye to the right of the user. Therefore, the image output device 12 should output the image of the left time when the left eye of the user is exposed, and should output the image of the right time when the right eye of the user is exposed. That is, the output screen to be output to the user and the reproduction screen reproduced by the data reproducing apparatus 11 must match.

However, when the data reproducing apparatus 11 reproduces the 3D image data, the reproduction screen and the output screen may not match. The playback screen and the output screen are out of sync. For example, the data reproducing apparatus 11 reproduces the image of the right time at the time when the left eye of the user is exposed (when the output screen is the image of the left time), and the time of exposing the right eye of the user (the output screen is the right time). Video at the left time).

The case where the reproduction screen and the output screen do not coincide may occur when the image output device 12 and the 3D reproduction glasses 13 are not synchronized. And, due to the time delay that occurs when the data reproducing apparatus 11 decodes the 3D image data or when the data reproducing apparatus 11 transmits the 3D image data to the image output apparatus 12, The playback screen and the output screen may not match.

In addition, the data reproducing apparatus 11 may confirm that the reproduction screen and the output screen are not synchronized through communication with the image output apparatus 12 or the 3D reproduction glasses 13. In addition, it can be confirmed by user input.

If the reproduction screen and the output screen are not synchronized, the data reproducing apparatus 11 cannot reproduce the correct three-dimensional image to the user. That is, the data reproducing apparatus 11 cannot reproduce the 3D image data as a 3D image having a stereoscopic feeling desired by the author.

Therefore, the data reproducing apparatus 11 should synchronize the reproduction screen with the output screen. (S350, Set Display Order) The data reproducing apparatus 11 may match the 3D image data of the reproduction screen with the image data of the output screen. do. That is, the data reproducing apparatus 11 reproduces the image at the left time at the time when the user's left eye is exposed (when the output screen is the image at the left time), and at the time at which the user's right eye is exposed (the output screen is at the right time Video at the right time). Accordingly, the data reproducing apparatus 11 can provide the user with a 3D image having a correct stereoscopic sense.

A method of synchronizing the playback screen and the output screen will be described in detail with reference to FIGS. 5 and 6.

The data reproducing apparatus 11 synchronizes the reproduction screen with the output screen, and then reconfirms whether the correct three-dimensional image is output from the image output apparatus 12. The data reproducing apparatus 11 reproduces the 3D image data as a 3D image.

Hereinafter, the device state information in which the data reproducing apparatus 11 and the image output apparatus 12 described above support 3D images, and the like, will be described. In the present invention, the device status information is composed of a player status register (PSR).

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 reproducing apparatus 11. As an example, the PSR may be recorded in the storage unit 150 of the data reproducing apparatus 11 to be described later. In the PSR, parameters and related information necessary for the data reproducing apparatus 11 to reproduce the 3D image data recorded on the recording medium 10 are recorded.

The PSR includes general reproduction information and three-dimensional reproduction information. The general reproduction information is information related to the recording medium 10 loaded in the data reproducing apparatus 11, and includes menu language information (PSR18), region code information (PSR19), and country code of the image data recorded on the recording medium 10. Information PSR20 and the like. The 3D reproduction information is information related to the reproduction of the 3D image data by the data reproducing apparatus 11 and includes information such as whether the reproduction environment of the user supports the 3D image. The three-dimensional reproduction information is described in detail below.

The PSR includes information on whether the data reproducing apparatus 11 supports a 3D image (Player Capability). The 3D image support information of the data reproducing apparatus 11 may be recorded in item 23 of the PSR (PSR23), and may be configured as a Boolean value. For example, a value of "0" indicates that the data reproducing apparatus 11 does not support a 3D image, and a value of "1" indicates that the data reproducing apparatus 11 supports a 3D image.

The PSR includes information on the current player mode of the data reproducing apparatus 11. Information about the playback mode is recorded in item 24 of the PSR (PSR24), and may be configured as a Boolean value. For example, a value of "0" indicates that the reproduction mode of the data reproducing apparatus 11 is a two-dimensional mode, and a value of "0" indicates that the reproduction mode of the data reproducing apparatus 11 is a three-dimensional mode.

In addition, the PSR includes information on whether the image output device 12 connected to the data reproducing device 11 supports a 3D image (Displayer Capability). The 3D image support information of the image output apparatus 12 may be recorded in item 25 of the PSR (PSR25) and configured as a Boolean value. For example, a value of "0" indicates that the image output device 12 does not support a 3D image, and a value of "1" indicates that the image output device 12 supports a 3D image.

The data reproducing apparatus 11 may determine whether the data reproducing apparatus 11 can reproduce the 3D image data using the PSR23, and the image output apparatus 12 connected to the data reproducing apparatus 11 using the PSR25. ) Can check whether or not the 3D image can be output.

Therefore, the data reproducing apparatus 11 checks whether the reproduction environment of the user supports the 3D image using the PSR23 and the PSR25. If the playback environment of the user supports the 3D image, the data reproducing apparatus 11 switches the reproducing mode of the data reproducing apparatus 11 to the 3D mode, and reproduces the 3D image data into the 3D image.

The data reproducing apparatus 11 can check the reproducing mode of the current data reproducing apparatus 11 using the PSR24. That is, the data reproducing apparatus 11 can check whether the data reproducing apparatus 11 reproduces the 3D image data in the 2D image or the 3D image using the PSR24.

The data reproducing apparatus 11 records the corresponding information in the PSR23, PSR24, and PSR25. (Player Setting) As an example, the data reproducing apparatus 11 includes a step in which a recording medium is loaded and the data reproducing apparatus 11 is initialized ( In S100, it may be recorded in the PSR23 whether the data reproducing apparatus 11 supports a 3D image. In addition, the data reproducing apparatus 11 may receive information on whether the image output apparatus 12 supports the 3D image through communication with the connected image output apparatus 12 and record the information on the PSR25.

Accordingly, the data reproducing apparatus 11 may quickly determine whether the reproduction environment of the user supports the 3D image through the prestored device state information, that is, the PSR. For example, whenever the data reproducing apparatus 11 confirms whether or not the image output apparatus 12 supports the 3D image, the data reproducing apparatus 11 can simply check the data output apparatus 12 through the PSR25 without communicating with the image output apparatus 12.

Hereinafter, a method of synchronizing the playback screen and the output screen will be described in detail. As described above, when the reproduction screen and the output screen are not synchronized, the image having the correct three-dimensional effect is not displayed, and the user cannot reproduce the correct three-dimensional image. Therefore, the data reproducing apparatus 11 requires a method of synchronizing the reproduction screen with the output screen.

5 is a conceptual diagram of a method for 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 image data of the left eye and image data of the right eye. The data reproducing apparatus 11 continuously reproduces the image data of the left time and the image data of the right time displaying the same three-dimensional image. Therefore, the image output apparatus 12 continuously outputs the image of the left time and the image of the right time so that the 3D image is output.

The figure shows that the 3D image is outputted by repetition of the image of the left view and the image of the right view. Synchronizing the reproduction screen and the output screen is to match the three-dimensional image reproduced as the reproduction screen and the three-dimensional image to be output to the output screen to the image of the same time. That is, the image of the left time is played at the time when the user's left eye is exposed (when the output screen is the image of the left time), and the time of the right time is displayed when the user's right eye is exposed (the output screen is the image of the right time). To play the video.

In the first embodiment of the present invention, in order to synchronize the playback screen and the output screen, the image output apparatus 13 skips and outputs one image of the right time output from the image output apparatus 13. In addition, the image output device 13 may skip and output one image of the left time instead of the image of the right time.

Accordingly, the 3D image reproduced on the reproduction screen and the 3D image to be output on the output screen become an image of the same time. Therefore, the data reproducing apparatus 11 reproduces the 3D image correct for the user.

6 is a conceptual diagram of a method for 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 three-dimensional image data reproduced by the data reproducing apparatus 11 to synchronize the reproduction screen and the output screen. As shown in the figure, the data reproducing apparatus 11 may copy one image data of the left time and insert it adjacent to the image data of the left time, or delete one image data of the right time.

In addition, the data reproducing apparatus 11 may conversely copy one image data of the right time and insert it adjacent to the image data of the right time, or delete one image data of the left time.

Accordingly, the 3D image reproduced on the reproduction screen and the 3D image to be output on the output screen become an image of the same time. Therefore, the data reproducing apparatus 11 reproduces the 3D image correct for the user.

According to the second embodiment of the present invention, the data reproducing apparatus 11 provides the image output apparatus 12 with the 3D image data in which the reproduction screen and the output screen are synchronized. Accordingly, the image output apparatus 12 may output the correct 3D image without any other conversion process or manipulation process.

In synchronizing the playback screen with the output screen, the video data at the time point of reference can be set in advance. In the 3D image, since the image data of the left time and the image data of the right time are continuously output, the reference time is set between the left and the right. In this case, the above-described playback screen and output screen are synchronized based on the image data at the reference time.

When the image data of the left time is set as the image data of the reference time, the playback screen and the output screen are synchronized, and then output from the image data of the left time to the image output device 12. That is, according to the first embodiment of the present invention, the image output device 12 skips one image data at the right time, or according to the second embodiment of the present invention, the data reproducing apparatus 11 is By inserting one image data, after the playback screen and the output screen are synchronized, the video data of the left view is output.

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

Referring to the overall configuration of the data reproducing apparatus 11 of the present invention in detail, first, the reading unit 70 reads data from the recording medium 10. The reading unit 70 may be configured as a pickup 70 of the data reproducing apparatus 11 in one embodiment of the present invention. The pickup 70 has a laser diode therein, and reads data by reading a signal reflected from the surface of the recording medium 10.

 The servo 90 controls the tracking and focusing operations of the reader 70 and the spindle motor 110.

 The R / F unit 80 outputs a focus error signal and a tracking error signal, which are signals that detect out-of-focus and track-out of the laser beam by using a signal output from the reader 70. Create

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

The motor driver 100 is controlled by the servo 90 to drive the operations of the reader 70 and the spindle motor 110.

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

The bit encoder 50 converts the signal output from the signal processor 40 into a bit stream, and the reader 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 reproduced on the recording medium 10. . The storage unit 150 also stores device state information in which the data reproducing apparatus 11 and the image output apparatus 12 support 3D images, and the like. Device status information of the present invention may be configured as a Player Status Register (PSR).

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

The 3D controller 130 controls the playback mode of the data reproducing 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 the two-dimensional image in the two-dimensional mode, and in the three-dimensional mode, Play as a 3D video.

The 3D controller 130 converts the reproduction mode of the data reproducing apparatus 11 from the two-dimensional mode to the three-dimensional mode. The 3D controller 130 checks the playback environment of the user and changes the playback mode of the data reproducing apparatus 11 to the 3D mode. That is, the 3D controller 130 checks whether the data reproducing apparatus 11 and the image output apparatus 12 support the 3D image. When the data reproducing apparatus 11 and the image output apparatus 12 support the 3D image, the 3D controller 130 switches the reproduction mode of the data reproducing apparatus 11 to the 3D mode.

In addition, the 3D controller 130 synchronizes the playback screen and the output screen. If the reproduction screen reproduced by the data reproducing apparatus 11 and the output screen to be output from the image output apparatus 12 are not synchronized, a correct three-dimensional image cannot be provided to the user. Accordingly, the 3D controller 130 synchronizes the playback screen and the output screen to provide the user with a 3D image having a desired 3D effect.

The 3D controller 130 copies one image data of the left time from the playback screen and inserts it adjacent to the image data of the left time, or deletes one image data of the right time to synchronize the playback screen and the output screen.

Although the 3D controller 130 is illustrated as one component, the present invention is not limited thereto. Several components may perform the function of the 3D controller 130 in conjunction with each other, and the 3D controller 130 may be implemented in an integrated form with the microcomputer 120 and / or the host 140. In addition, the 3D controller 130 may include a signal processor 40, a bit encoder 50, a reader driver 60, a reader 70, a servo 90, a motor driver 100, a spindle motor 110, The microcomputer 120 may be additionally connected to a drive including the microcomputer 120 and the storage 150 to enable an update.

The host 140 is in charge of controlling all the components of the data reproducing apparatus 11 and controls the reproduction of the recording medium 10 through an interface with a user. 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 in the data reproducing apparatus 11 according to the command. It will control the components configured to interwork with each other.

The microcomputer 120 and the host 140 may be provided and operated separately, and the microcomputer 120, the 3D controller 130, and the host 140 may be integrated to operate as a single control unit 160. It is also possible.

The host 140 may be a main controller of a computer, a server, an audio device, or a video device. That is, the data reproducing apparatus 11 of the present invention may be an optical drive provided to a personal computer (PC) or the like, or may be a player not mounted on the personal computer.

Therefore, the data reproducing apparatus 11 according to the present invention can be applied to both an optical drive and a player utilized as a single product mounted and operated inside a PC.

In order to record data on the recording medium 10, the AV encoder 20 converts an input signal into a signal of a specific format recordable on the recording medium 10 and transmits the signal to the signal processor 40.

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 a video and an audio signal.

In addition, the AV decoder 30 decodes the 3D image data and provides the same to the user. That is, the AV decoder 30 continuously decodes the video data of the left time and the video data of the right time that display the same three-dimensional image, and provides the same to the user.

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

Although the preferred embodiment of the present invention has been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

1 illustrates an integrated use between 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 exemplary embodiment of the present invention.

3 is a flowchart of a method for switching to a three-dimensional mode according to 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 for 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 for 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)

Checking whether the data reproducing apparatus supports the 3D image; Checking whether an image output apparatus connected to the data reproducing apparatus supports a 3D image; Reproducing three-dimensional image data recorded on a recording medium when the data reproducing apparatus and the image output apparatus support a three-dimensional image. The playback step, Confirming whether the reproduction screen reproduced with the 3D image data and the output screen to be output to the user are synchronized; And Synchronizing the playback screen and the output screen when the playback screen and the output screen are not synchronized. The method of claim 1, The 3D image data, Image data of the left eye; And Including image data of the right time, The playback step, Continuously reproduce the image data of the left time and the image data of the right time displaying the same three-dimensional image, The synchronization step, And the 3D image data reproduced on the reproduction screen and the 3D image data to be output on the output screen match image data of the same time. The method of claim 2, The synchronization step, And a copy of the image data of the left time is inserted adjacent to the image data of the left time. The method of claim 2, The synchronization step, And a data reproduction method for deleting the video data of the right time. The method of claim 1, The playback step, And outputting a display for guiding the wearing of the three-dimensional image reproducing glasses. The method of claim 1, The checking of the data reproducing apparatus and the checking of the video output apparatus may include: And a device state information including reproduction related information of the data reproduction device. The method of claim 6, The device status information, And a 3D image support field of the image output device. The method of claim 2, If the data reproducing apparatus or the image output apparatus does not support a 3D image, reproducing the image data of the left time or the image data of the right time. A reading unit for reading data of the recording medium; A storage unit to record information related to the recording medium; And Control the reader to read three-dimensional image data from the recording medium, Check whether the data reproducing device supports 3D video, Check whether the image output apparatus connected to the data reproducing apparatus supports the 3D image, And a controller for reproducing the 3D image data when the data reproducing apparatus and the image output apparatus support a 3D image. The control unit, Check whether the playback screen reproduced with the 3D image data and the output screen to be output to the user are synchronized; And reproducing the reproduction screen and the output screen when the reproduction screen and the output screen are not synchronized. The method of claim 9, The 3D image data, Image data of the left eye; And Including image data of the right time, The control unit, Continuously reproduce the image data of the left time and the image data of the right time displaying the same three-dimensional image, And the 3D image data reproduced on the reproduction screen and the 3D image data to be output on the output screen are synchronized with the image data at the same time, thereby synchronizing the reproduction screen and the output screen. 11. The method of claim 10, The control unit, And a copy of the image data of the left time adjacent to the image data of the left time to synchronize the playback screen with the output screen. 11. The method of claim 10, The control unit, And a data reproducing apparatus for synchronizing the reproduction screen with the output screen by deleting the image data of the right time. The method of claim 9, The control unit, A data reproducing apparatus for outputting a display for guiding the wearing of three-dimensional image reproducing glasses. The method of claim 9, The control unit, And confirming the data reproducing device and the image output device, using device status information recorded in the storage unit and including device related information of the data reproducing device. The method of claim 14, The device status information, And a 3D image support field of the image output apparatus. 11. The method of claim 10, The control unit, And when the data reproducing apparatus or the image output apparatus does not support a 3D image, reproducing the image data of the left time or the image data of the right time.

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