JP2010148091A - Ultrahigh clear disk recording apparatus, reproduction apparatus, and its control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ultrahigh clear disk recording apparatus, a reproduction apparatus, and its control method. <P>SOLUTION: The ultrahigh clear disk recording apparatus, the reproduction apparatus, and its control method separate audio data, video data, and caption data into plural pieces respectively, control an optical entry device for storing data into a recording medium by changing a sampling rate of a plurality of pieces of the audio data, and by changing a frame rate of each of a plurality of pieces of video data, a color space, and a chrominance configuration, and then store the title information and separation information of a plurality of pieces of audio data, video data, and caption data, or a plurality of pieces of audio data, video data, and caption data in the recording medium. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an ultra-high-definition disk recording apparatus and reproducing apparatus, and a control method therefor. The present invention is derived from research conducted as part of the IT Source Technology Development Project of the Ministry of Knowledge Economy and the Institute of Information and Communications Technology [Problem Management Number: 2008-F-011-01, Project Name: Next Generation] Development of DTV core technology (standardization cooperation)-Development of 3D broadcasting technology without personal glasses]

  The audio / video (A / V) service has been developed into a 5.1 channel HDTV (High Definition Television) through color television, starting with radio and black and white television.

  As a result, DVD (Digital Video Disc) players for recording and playing back audio / video data are now full HD class (1080p, 5.1 channels) using a Blu-ray Disc. ) Audio / video can be played.

  Generally, a DVD player using an existing Blu-ray disc is MPEG4 AVC / H. Even with the H.264 codec, data of about one movie could be recorded and reproduced in real time due to the limitation of the disk capacity and the digital signal processing speed.

  However, conventional DVD discs cannot store and play back 4K-class video and multi-channel audio on a DVD due to capacity limitations and digital signal processing speed limitations.

  The present invention has been devised to improve the prior art as described above, and is capable of real-time processing of multi-channel audio data, ultra-high capacity video data, and subtitle data in a disk recording and playback device. Disc player and digital cinema apparatus capable of storing and playing back 4K class video and multi-channel audio by applying the synchronization function between the data and the synchronization function between the separated data The purpose is to provide.

  Another object of the present invention is to provide a storage device that can store a large amount of content in a small space by separating and recording content of 4K class or higher on a disc.

  According to an aspect of the present invention, there is provided a method for controlling an ultra-high definition disk recording apparatus, the step of separating each of audio data, video data, and subtitle data into a plurality of samples, and a sampling rate of the plurality of audio data. Or changing at least one of the frame rate, color space, and chromaticity form of the plurality of video data, and an optical writer that stores the data in a recording medium And controlling the title information and separation information of the plurality of audio data, video data, and subtitle data, or storing the plurality of audio data, video data, and subtitle data in a recording medium.

  At this time, the step of separating each of the audio data, video data, and subtitle data into a plurality of steps includes separating the video data into a plurality of sub frames, and separating the audio data into a plurality of channels. And the step of separating the subtitle data according to the national language of the subtitles.

  At this time, the step of separating each of the audio data, the video data, and the caption data into a plurality can be a step of separating the video data into a plurality of subframes in GOP (Group of Picture) units.

  At this time, the step of changing at least one of a frame rate, a color space, and a chromaticity form of the plurality of video data includes a step of changing the number of frames per second of the plurality of video data. , Converting the plurality of video data from an RGB format to a YUV format, and converting a chromaticity configuration of the plurality of video data.

  At this time, the method may further include a step of compressing the plurality of audio data or video data.

  At this time, the plurality of audio data, video data, and caption data are converted into data in a recording stream format for recording on a recording medium, and synchronization between the plurality of audio data, video data, and caption data is performed. The method may further include generating a time stamp.

  At this time, the step of storing the plurality of audio data, video data, and caption data in a recording medium includes the step of generating title information of the plurality of audio data, video data, and caption data, and the title information is recorded on the recording medium. Storing the data in a storage device.

  In this case, the step of storing the plurality of audio data, video data, and caption data in a recording medium uses a time stamp for synchronization between the plurality of audio data, video data, and caption data, and the plurality of audio data Data, video data, and caption data can be stored in a recording medium.

  At this time, the step of storing the plurality of audio data, video data, and subtitle data in a recording medium includes information relating to separation of the audio data into a plurality of channels, information relating to separation of the video data into a plurality of subframes. , And information regarding separation of the subtitle data into subtitles according to national languages may be stored in the recording medium.

  A control method for an ultra-high definition disk reproducing device according to one aspect of the present invention controls an optical reader that reads data stored in a recording medium, and a plurality of audio data, video data, and subtitles stored in the recording medium Reading the data, title information and separation information of the plurality of audio data, video data, and subtitle data; changing the sampling rate of the plurality of audio data; and frame rate, color of the plurality of video data Changing at least one of space and chromaticity form, and outputting the plurality of audio data and video data.

  At this time, the plurality of audio data, video data, and subtitle data are converted into a data format for outputting a plurality of audio data, video data, and subtitle data in a recording stream format for recording on the recording medium. It may further comprise the step of reading a time stamp for synchronization between.

  At this time, when the plurality of audio data or video data is compressed, the method may further include a step of releasing the compression of the plurality of audio data or video data.

  The ultra-high definition disc recording apparatus according to one aspect of the present invention is a data separator that separates each of audio data, video data, and subtitle data into a plurality, and changes a sampling rate of the plurality of audio data, Controlling a data format converter that changes at least one of a frame rate, a color space, and a chromaticity form of the plurality of video data, and an optical entry device that stores data in a recording medium, Audio data, video data, and subtitle data title information and separation information, or an ultra-high-definition content controller that stores the plurality of audio data, video data, and subtitle data on a recording medium.

  At this time, an encoder for compressing the plurality of audio data or video data is further provided.

  At this time, the plurality of audio data, video data, and caption data are converted into data in a recording stream format for recording on a recording medium, and synchronization between the plurality of audio data, video data, and caption data is performed. A data framer for generating a time stamp may be further provided.

  At this time, the data format converter may be configured with the same number as the plurality of separated audio data, video data, and subtitle data.

  An ultra-high definition disk reproducing device according to one aspect of the present invention controls an optical reader that reads data stored in a recording medium, and a plurality of audio data, video data, and subtitle data stored in the recording medium, An ultra-high-definition content controller that reads title information and separation information of the plurality of audio data, video data, and subtitle data, a sampling rate of the plurality of audio data, and a frame rate of the plurality of video data A data format inverse converter for changing at least one of color space and chromaticity form, and an output interface for outputting the plurality of audio data and video data.

  At this time, the plurality of audio data, video data, and subtitle data are converted into a data format for outputting a plurality of audio data, video data, and subtitle data in a recording stream format for recording on the recording medium. A data deframer can be further provided for reading a time stamp for synchronization between the two.

  At this time, when the plurality of audio data or video data is compressed, the decoder may further include a decoder for releasing the compression of the plurality of audio data or video data.

  In this case, the data format inverse converter may be configured with the same number as the plurality of audio data, video data, and subtitle data.

  According to the present invention, multi-channel audio data, ultra-high-capacity video data, and caption data are separated and processed in parallel so that real-time processing can be performed in a disk recording and playback device, and synchronization and separation of data are performed. The 4K-class video and multi-channel audio can be used in disc players and digital cinema storage and playback devices.

  Further, according to the present invention, it is possible to store a large amount of content in a small space by separating and recording content of 4K class or higher on a disc.

1 is a diagram showing an ultra-high definition disk recording apparatus and an ultra-high definition disk reproducing apparatus according to an embodiment of the present invention. 4 is a flowchart for explaining a control method of the ultra-high definition disk recording apparatus according to the embodiment of the present invention. 6 is a flowchart for explaining a control method of the ultra-high definition disc reproducing apparatus according to the embodiment of the present invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited by the embodiments. In the drawings, the same reference numerals denote the same members.

  FIG. 1 is a diagram showing an ultra-high definition disk recording apparatus and an ultra-high definition disk reproducing apparatus according to an embodiment of the present invention. With reference to FIG. 1, an ultra-high definition disk recording apparatus and an ultra-high definition disk reproducing apparatus according to an embodiment of the present invention will be described.

  An ultra high definition disk recording apparatus 110 according to an embodiment of the present invention includes a data splitter 111, a data format converter 112, an encoder 113, and a data framer. (Data Framer) 114, an optical entry device 115, and an ultra-high definition content controller (UHD Contents Controller) 120.

  The ultra high definition disc recording apparatus 110 according to an embodiment of the present invention receives audio data, video data, and caption data from the storage device 100.

  The data separator 111 separates the transmitted audio data, video data, and caption data into a plurality of pieces so as to enable real-time processing.

  At this time, the data separator 111 can separate the video data into a plurality of subframes, separate the audio data into a plurality of channels, and separate the caption data according to the subtitle national language.

  Further, the data separator 111 can separate video data into a plurality of subframes in GOP units.

  For example, in the case of 4K (video resolution 3840 × 2160, 30 fps) video, 22.2 channel audio, and ultra-high definition content having subtitle data in four languages, the data separator 111 converts the video data to full HD (1920 × 1080p) It can be divided into four sub-frames of video, audio data can be divided into four by six channels, and caption data can be divided into four by each country. At this time, the data separator 111 separates the video subframes in units of GOPs so that synchronization can be performed between the subframes after video encoding and decoding.

  The data format converter 112 changes the sampling rate of the plurality of audio data, and changes the frame rate, color space, and chromaticity form of the plurality of video data.

  More specifically, the frame rate of the video data changes the number of frames per second, the change of the color space changes the video data from the RGB form to the YUV form, and the change of the chromaticity form is 4: 4 in the YUV. It means mutual conversion between 4: 4, 4: 2: 2, and 4: 2: 0.

  At this time, the data format converter 112 can be configured with the same number as the plurality of separated audio data, video data, and caption data.

  Further, the data format converter 112 can change the number of frames per second of a plurality of video data, convert from RGB format to YUV format, or convert chromaticity format.

  The encoder 113 can compress a plurality of audio data or video data.

  The data framer 114 can convert a plurality of audio data, video data, and caption data into data in a recording stream format for recording on a recording medium.

  At this time, the data framer 114 generates a time stamp for synchronizing the plurality of separated audio data, video data, and caption data.

  The optical entry device 115 can store a plurality of audio data, video data, and caption data in the recording medium 140 under the control of the ultra-high definition content controller 120.

  The ultra high-definition content controller 120 controls the optical entry device 150 that stores data in the recording medium 140. The ultra-high definition content controller 120 stores title information and separation information of a plurality of audio data, video data, and subtitle data, or a plurality of audio data, video data, and subtitle data in the recording medium 140.

  More specifically, the ultra-high definition content controller 120 can generate title information of a plurality of audio data, video data, and subtitle data, and store the title information in the recording medium 140.

  At this time, the title information means information related to an audio compression format, a video compression format, a subtitle language type, and the like. The separation information includes a corresponding audio channel ID, a corresponding video subframe ID, a corresponding subtitle language ID, and the like recorded for each disc. For example, in the case of separation information of the first disc, the audio channel ID is Information such as 1/2/3/4, video subframe ID 1 (1/4), subtitle language ID 1 (Kr), and the like can be included.

  Unlike this, the ultra-high definition content controller 120 uses a plurality of audio data, video data, and caption data using a time stamp for synchronization between the plurality of audio data, video data, and caption data. Can be stored in the recording medium 140.

  Also, the ultra-high-definition content controller 120 includes information on separation of audio data into a plurality of channels, information on separation of video data into a plurality of subframes, and information on separation of subtitle data into subtitles according to national languages. It can be stored in the recording medium 140.

  For example, if the data separator 111 is 4K (video resolution 3840 × 2160, 30 fps) video, 22.2 channel audio, and ultra-high definition content having subtitle data in four languages, the video data is full HD (1920 × 1080p). ) Information on audio data, video data, and subtitles when the video data is divided into four subframes, audio data is divided into four channels with six channels, and subtitle data is divided into four according to each country. Is generated and inserted into a main optical disc, and a time stamp can be used for synchronization among audio, video, and subtitle data. In addition, ¼ sub-frame of 4K video (1 frame of full HD video), 6 channels of audio, and subtitle data in one language are allocated and inserted into one main optical disc and the remaining three sub optical discs. Can be controlled. At this time, separate video portion frame information, separated audio channel information, and title information corresponding to national language-specific subtitle information can be inserted into each optical disc.

  At this time, DVD, Blu-ray DVD, HD-DVD, etc. can be used as a recording medium according to an embodiment of the present invention.

  Meanwhile, at least one of the data format converter 112, the encoder 113, the data framer 114, and the optical writer 115 according to an embodiment of the present invention receives audio data, video data, and caption data. Each can be configured with a number suitable for the separated number.

  An ultra-high definition disc reproducing apparatus 130 according to an embodiment of the present invention includes an optical reader 131, a data deframer 132, a decoder 133, and a data format. An inverse converter (Data Format Deconverter) 134, an output interface (Output Interface) 135, and an ultra-high definition content controller 120 are provided.

  The ultra high-definition content controller 120 controls the optical reader 131 that reads data stored in the recording medium 140. That is, the ultra-high-definition content controller 120 includes a plurality of audio data, video data, and caption data stored in the recording medium by the optical reader 131, and title information of the plurality of audio data, video data, and caption data. Control to read the separation information.

  The data deframer 132 converts a plurality of audio data, video data, and subtitle data in a recording stream format for recording on a recording medium into a data format for output, and a plurality of audio data, video data, and subtitles Time stamps for synchronization between data can be read.

  When a plurality of audio data or video data is compressed, the decoder 133 can release the compression of the plurality of audio data or video data.

  The data format inverse converter 134 changes the sampling rate of the plurality of audio data, and changes the frame rate, color space, and chromaticity form of the plurality of video data.

  At this time, the data format inverse converter 134 can be configured by the same number as the plurality of audio data, video data, and subtitle data.

  The output interface 135 outputs a plurality of audio data and video data.

  Meanwhile, at least one of the optical reader 131, the data deframer 132, the decoder 133, the data format inverse converter 134, and the output interface 135 according to an embodiment of the present invention is an audio data, video The number of data and subtitle data can be configured to match the number of separated data.

  FIG. 2 is a flowchart for explaining a control method of the ultra-high definition disk recording apparatus according to the embodiment of the present invention. With reference to FIG. 2, a control method of an ultra-high definition disk recording apparatus according to an embodiment of the present invention will be described.

  The data separator separates each of the transmitted audio data, video data, and caption data into a plurality of pieces so that real-time processing is possible (S210).

  At this time, the data separator can separate the video data into a plurality of subframes, separate the audio data into a plurality of channels, and separate the caption data according to the national language of the caption.

  Also, the data separator can separate video data into GOP units and separate it into a plurality of subframes.

  Thereafter, the data format converter changes the sampling rate of the plurality of audio data, and changes the frame rate, color space, and chromaticity form of the plurality of video data (S220).

  At this time, the data format converter can be configured by the same number as the plurality of separated audio data, video data, and caption data.

  In addition, the data format converter can change the number of frames per second of a plurality of video data, convert from the RGB form to the YUV form, and convert the chromaticity form.

  Thereafter, the encoder may compress a plurality of audio data or video data (S230).

  Thereafter, the data framer converts a plurality of audio data, video data, and caption data into data in a recording stream format for recording on a recording medium, and synchronizes between the plurality of audio data, video data, and caption data. A time stamp can be generated (S240).

  The ultra high-definition content controller controls the optical writer that stores data in a recording medium, and title information and separation information of a plurality of audio data, video data, and subtitle data, or a plurality of audio data, video data, and The caption data is stored in the recording medium (S250).

  More specifically, the ultra-high definition content controller can generate title information of a plurality of audio data, video data, and subtitle data, and store the title information in a recording medium.

  Unlike this, the ultra-high definition content controller records multiple audio data, video data, and subtitle data using a time stamp for synchronization between multiple audio data, video data, and subtitle data. It can be stored on a medium.

  The ultra-high definition content controller also provides information on separation of audio data into multiple channels, information on separation of video data into multiple subframes, and information on separation of subtitle data into subtitles by national language. It can be stored in a recording medium.

  FIG. 3 is a flowchart for explaining a control method of the ultra-high definition disk reproducing apparatus according to the embodiment of the present invention.

  The ultra-high-definition content controller controls an optical reader that reads data stored in a recording medium, and a plurality of audio data, video data, and subtitle data stored in the recording medium, and a plurality of audio data and video data The title information and the separation information of the subtitle data are read (S310).

  Thereafter, the data deframer converts to a data format for outputting a plurality of audio data, video data, and subtitle data in a recording stream format for recording on a recording medium, and a plurality of audio data, video data, and A time stamp for synchronization between subtitle data can be read (S320).

  Thereafter, when a plurality of audio data or video data is compressed, the decoder can release the compression of the plurality of audio data or video data (S330).

  Thereafter, the data format inverse converter changes the sampling rate of the plurality of audio data, or changes the frame rate, color space, and chromaticity form of the plurality of video data (S340).

  At this time, the data format inverse converter can be configured by the same number as a plurality of audio data, video data, and subtitle data.

  Thereafter, the output interface outputs a plurality of audio data and video data (S350).

  Therefore, according to the present invention, multi-channel audio data, ultra-high capacity video data, and caption data are separated and processed in parallel so that real-time processing can be performed in the disk recording and playback device, and synchronization and separation between the data is performed. By applying the synchronization function between the data, the disc player and the digital cinema storage and playback apparatus can be used for 4K-class video and multi-channel audio.

  As described above, the present invention has been described with reference to the preferred embodiments. However, those skilled in the relevant technical field should not depart from the spirit and scope of the present invention described in the claims. Thus, it will be understood that the present invention can be variously modified and changed. In other words, the technical scope of the present invention is defined based on the claims, and is not limited by the best mode for carrying out the invention.

DESCRIPTION OF SYMBOLS 100: Storage apparatus 110: Super high definition disc recording device 111: Data separator 112: Data format converter 113: Encoder 114: Data framer 115: Optical entry device 120: Super high definition content controller 130: Super high definition Disc playback device 131: optical reader 132: data deframer 133: decoder 134: data format inverse converter 135: output interface

Claims (20)

Separating audio data, video data, and subtitle data into a plurality of pieces,
Changing a sampling rate of the plurality of audio data, changing at least one of a frame rate, a color space, and a chromaticity form of the plurality of video data;
Controls the optical entry device that stores data in a recording medium, and stores the title information and separation information of the plurality of audio data, video data, and caption data, or the plurality of audio data, video data, and caption data in the recording medium. And a control method for an ultra-high definition disk recording apparatus. The step of separating each of the audio data, video data, and subtitle data into a plurality of steps,
Separating the video data into a plurality of subframes;
Separating the audio data into a plurality of channels;
2. The method for controlling an ultra-high definition disk recording apparatus according to claim 1, further comprising a step of separating the subtitle data for each national language of subtitles. The step of separating each of the audio data, video data, and subtitle data into a plurality of steps,
2. The method of controlling an ultra-high definition disk recording apparatus according to claim 1, wherein the video data is divided into a plurality of subframes in units of GOPs. Changing at least one of a frame rate, a color space, and a chromaticity form of the plurality of video data,
Changing the number of frames per second of the plurality of video data;
Converting the plurality of video data from RGB form to YUV form;
The method according to claim 1, further comprising: converting chromaticity forms of the plurality of video data.   2. The method of controlling an ultra high definition disk recording apparatus according to claim 1, further comprising the step of compressing the plurality of audio data or video data.   A time stamp for synchronizing the plurality of audio data, video data, and subtitle data by converting the plurality of audio data, video data, and subtitle data into data in a recording stream format for recording on a recording medium. The method for controlling an ultra-high definition disk recording apparatus according to claim 1, further comprising the step of generating Storing the plurality of audio data, video data, and caption data in a recording medium,
The ultra high definition disk recording apparatus according to claim 1, comprising: generating title information of the plurality of audio data, video data, and subtitle data; and storing the title information in a recording medium. Control method. Storing the plurality of audio data, video data, and caption data in a recording medium,
The step of storing the plurality of audio data, video data, and subtitle data in a recording medium using a time stamp for synchronization between the plurality of audio data, video data, and subtitle data. Item 4. A method for controlling an ultra-high definition disk recording apparatus according to Item 1. Storing the plurality of audio data, video data, and subtitle data in a recording medium,
Storing in the recording medium information relating to separation of the audio data into a plurality of channels, information relating to separation of the video data into a plurality of subframes, and information relating to separation of the caption data into subtitles according to national languages. The method for controlling an ultra-high definition disk recording apparatus according to claim 1, wherein: A plurality of audio data, video data, and subtitle data stored in the recording medium by controlling an optical reader that reads data stored in the recording medium, or title information of the plurality of audio data, video data, and subtitle data And reading the separation information;
Changing a sampling rate of the plurality of audio data, or changing at least one of a frame rate, a color space, and a chromaticity form of the plurality of video data;
And outputting the plurality of audio data and video data.   A plurality of audio data, video data, and subtitle data in a recording stream format for recording on the recording medium is converted into a data format for output, and synchronization between the plurality of audio data, video data, and subtitle data is performed 11. The method for controlling an ultra-high definition disc reproducing apparatus according to claim 10, further comprising a step of reading a time stamp for making a disc.   The ultra-high definition disc player according to claim 10, further comprising a step of releasing the compression of the plurality of audio data or video data when the plurality of audio data or video data is compressed. Control method. A data separator that separates audio data, video data, and caption data into a plurality of pieces,
A data format converter that changes a sampling rate of the plurality of audio data, or changes at least one of a frame rate, a color space, and a chromaticity form of the plurality of video data;
Controls an optical writer that stores data in a recording medium, and title information and separation information of the plurality of audio data, video data, and subtitle data, or the plurality of audio data, video data, and subtitle data on the recording medium An ultra-high-definition disc recording apparatus comprising: an ultra-high-definition content controller for storing the content.   14. The ultra high definition disk recording apparatus according to claim 13, further comprising an encoder for compressing the plurality of audio data or video data.   The plurality of audio data, video data, and subtitle data are converted into data in a recording stream format for recording on a recording medium, and a time stamp for synchronization between the plurality of audio data, video data, and subtitle data is provided. 14. The ultra high definition disk recording apparatus according to claim 13, further comprising a data framer to be generated.   14. The ultra-high definition disk recording apparatus according to claim 13, wherein the data format converter is configured with the same number as the plurality of separated audio data, video data, and caption data. A plurality of audio data, video data, and subtitle data stored in the recording medium, and title information of the plurality of audio data, video data, and subtitle data are controlled by an optical reader that reads data stored in the recording medium And ultra-high-definition content controller that reads separation information,
A data format inverse converter that changes a sampling rate of the plurality of audio data, or changes at least one of a frame rate, a color space, and a chromaticity form of the plurality of video data;
And an output interface for outputting the plurality of audio data and video data.   A plurality of audio data, video data, and subtitle data in a recording stream format for recording on the recording medium is converted into a data format for output, and synchronization between the plurality of audio data, video data, and subtitle data is performed 18. The ultra high-definition disk reproducing apparatus according to claim 17, further comprising a data deframer for reading a time stamp for making the data.   18. The ultra-high definition disc reproduction according to claim 17, further comprising a decoder that decompresses the plurality of audio data or video data when the plurality of audio data or video data is compressed. apparatus.   The apparatus of claim 17, wherein the data format inverse converter comprises the same number as the plurality of audio data, video data, and subtitle data.

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