KR20020026986A - Network switching digital video disc player and downloading method of video signal of the same over network - Google Patents

Abstract

PURPOSE: A device for playing a digital video disc enabling network interworking based on data communication network and a method for downloading video signals using the same, are provided to search web sites through the Internet network, and to download a specific video file and store the file in real-time or in reserved. CONSTITUTION: In a digital video disc playing device, a pickup(108) rotates a motor(106) to detect recorded data from a digital video disc(104), a servo(110) controls the motor(106) and the pickup(108), a digital signal input unit(112) filters detected signals of the pickup(108), and a controller(114) controls the digital signal input unit(112) as well as the pickup(108) and the motor(106). A key input unit(102) searches Web sites, downloads specific files, selects a downloading method, and sets modes and functions for playing general DVD through an Internet network in wired and wireless. A communication interface(116) interfaces wired/wireless data. A signal converter(118) converts supplied data into data capable of being post-processed. A switching unit(120) switches data read from the digital video disc(104) and data supplied through the communication interface(116). A data extractor(122) inputs signals from the digital signal input unit(112) and file data downloaded through the communication interface(116), to output MPEG bit stream. A buffer(124) temporarily stores data from the data extractor(122). An MPEG decoder(126) reads the data stored in the buffer(124) for decoding, to output video signals. An AV(Audio/Video) player(128) encodes signals from the MPEG decoder(126) to output RGB data and output video and audio signals. A data storage(130) stores a path of a desired file for data stored in the buffer(124).

Description

Digital video disc playback device capable of network interworking via data communication network and video signal download method using the same {NETWORK SWITCHING DIGITAL VIDEO DISC PLAYER AND DOWNLOADING METHOD OF VIDEO SIGNAL OF THE SAME OVER NETWORK}

The present invention relates to a digital video disc playback device capable of interworking with a network via a data communication network, and a video signal download method using the same. More specifically, it is possible to reproduce Internet communication and a general digital video disc having a search and file download function. The present invention relates to a digital video disc reproducing apparatus capable of interworking with a network via a data communication network interworking with a network, and a video signal download method using the same.

As is well known, a disc-shaped information recording medium on which a large amount of information is recorded has been in the spotlight as a next generation recording medium, and has been developed from a compact disc (CD) capable of recording only audio signal data. A compact disc graphics (CDG) in which graphic information data and audio signal data are recorded at the same time has been developed and employed. In addition, a video disc in which audio data and moving image information data are recorded is proposed.

According to the video disc in which the moving picture / audio signal information data is recorded, it encodes and records the moving picture information data and the information signal of the audio signal, and is usually recorded by the MPEG1 (Motion Picture Expert Group 1) algorithm. It is possible to compress information so that approximately 70 minutes of information can be recorded, and can be reproduced by decoding by the MPEG1 algorithm even when the recorded data is reproduced.

Recently, digital video discs (or High Density Video Discs) have been developed to enable recording of moving picture information data and audio signal data to discs of about 12 cm in diameter for about 140 minutes or more through the compression method of the MPEG2 algorithm. According to the DVD playback system for reproducing such a digital video disc, the voice signal read out from the digital video disc is processed through Dolby AC-3, a Dolby voice circuit, to reproduce the realistic sound of the surround sound. By encoding and reproducing the information data of a moving picture and the data of an audio signal by the MPEG2 algorithm, it is possible to reproduce with better image quality and sound quality.

In addition, such a DVD playback system has a considerable difference compared to a video disk playback system. In a video disk playback system, the data transmission rate is 1.2 Mbps, EFM (Eight To Fifteen Modulation) modulation is performed on information data, and error correction is performed. While the CIRC (Cross Interleave Reed Solomon Code) method is used, the DVD playback system performs data transmission at an average of 4 Mbps while modulating the information data by the EFM Puls method. Correction is made to RS-PC.

However, the above-described DVD playback system can not download and display music videos or movies through the Internet because its function is only to play audio and video signals stored in digital video discs. There is a problem in that an expensive computer must be purchased only for functions such as file download, signal conversion, and storage.

The present invention has been made in view of the above-described prior art, so that various websites can be searched by interworking with the Internet network, and at the same time, the download and file storage for a specific video file can be selected as real time storage or reserved storage. It is an object of the present invention to provide a digital video disc playback apparatus capable of interworking with a network via a data communication network and a video signal download method using the same.

1 is a block diagram showing the configuration of a digital video disc playback apparatus capable of interworking with a network through a data communication network according to an embodiment of the present invention;

2A, 2B, and 2C are diagrams illustrating an example of a screen output to a digital video disc playback apparatus capable of interworking with a network through a data communication network according to an embodiment of the present invention;

3 is a flowchart illustrating a signal flow of a digital video disc reproducing apparatus capable of interworking with a network through a data communication network according to an embodiment of the present invention.

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

104: digital video disc, 106: motor,

108: pickup, 110: servo,

112: digital signal input section, 114: control section,

116: communication interface unit, 118: signal conversion unit,

120: switching unit, 122: data extraction unit,

124: buffer, 126: MPEG decoder,

128: video / audio playback section, 130: data storage section,

132: main control unit.

In order to achieve the above object, according to a preferred embodiment of the present invention, a pickup for rotating the motor from a digital video disk recording audio and video data to detect recorded data; A servo controlling the motor and the pickup; A digital signal input unit which performs a process such as filtering the detection signal of the pickup; In the digital video disc playback device provided with a control unit for controlling the digital signal input unit and controlling the pickup and the motor, a search of various websites and download and download of specific files through the Internet by wireless and wired. A key input unit for setting a mode and a function for selection and playback of a general DVD by key operation; A communication interface unit for interface of wired / wireless data; A signal converting unit converting the applied data into post-processable data through the communication interface unit; A switching unit for switching read data from the digital video disc applied through the digital signal input unit or data applied through the communication interface unit according to a key input signal of the key input unit; A data extraction unit for outputting an MPEG bit stream using the output signal of the digital signal input unit and the file data down via the communication interface unit as its inputs; A buffer for temporarily storing output data of the data extraction unit; An MPEG decoder for outputting a video signal by reading and decoding stored data of the buffer; A video / audio playback unit for outputting video and audio signals by encoding the output signal output from the MPEG decoder and outputting primary color data (R, G, B); A data storage unit for storing desired frame data and downloaded file data, various reproduction processing programs, a path designation program, and a path of a download target file among data stored in the buffer when a storage and download request signal is generated from the key input unit; Generates the servo control signal to the control unit according to the Internet search generated from the key input unit, the specific file download, and the DVD playback mode, and also controls switching of the switching unit, data input / output of the buffer, and decoding of the MPEG decoder. Controlling the operation and operation of the video / audio playback unit and controlling the data to be stored in the data storage unit by executing a real time and delay time download of a specific file applied through the communication interface unit according to the download selection mode. Provided is a digital video disc playback apparatus capable of interworking with a network via a data communication network.

Preferably, the digital video disc playback apparatus has a unique IP address to enable Internet access and retrieval.

Meanwhile, according to the present invention, in a method of playing a digital video disc playback apparatus, which is capable of playing a digital video disc, connecting to the Internet, searching, and downloading a specific file, the digital video disc playback operation or Internet search is performed by a key input operation. Selecting an action; When the Internet search operation is selected, stopping the playback of the digital video disc and switching to a mode where communication connection and page down are possible; Selecting a delay download for the particular file; Storing a website path of a specific file; Detecting whether a power off signal is generated by a key input; Determining whether a download target file exists in the data storage unit; Searching for a file by a website path of a specific file stored in the data storage unit; Executing a download of the file; A video signal download method using a digital video disc reproducing apparatus capable of interworking with a network through a data communication network comprising switching a power switch and turning off a power is provided.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail with reference to drawings.

1 is a block diagram showing the configuration of a digital video disc playback apparatus capable of interworking with a network through a data communication network according to an embodiment of the present invention.

Referring to this, reference numeral 100 denotes a digital video disc reproducing apparatus capable of reproducing a general DVD and a network interworking to the Internet network, and reference numeral 102 denotes the reproducing apparatus 100 inside or outside the reproducing apparatus 100. A key input unit for setting a mode and a function for searching various websites through the Internet network, downloading a specific file, selecting a download method, and playing a general DVD is shown. The key input unit 102 represents the playback device ( It may be provided with a plurality of buttons on the front of the 100, it is also possible to remote control via a wireless data network.

Further, reference numeral 104 denotes a digital video disc recording audio and video data, respectively, and reference numeral 108 denotes a pickup for detecting recording data from the disc 104 by the rotation of the motor 106.

Reference numeral 110 denotes a servo for controlling the motor 106 and the pickup 108, and reference numeral 112 denotes a digital signal input unit which performs processing such as filtering the detection signal of the pickup 108.

Reference numeral 114 denotes a control unit which controls the digital signal input unit 112 and controls the pickup 108 and the motor 106.

Reference numeral 116 denotes a communication interface unit including a common gateway interface (CGI) and a WAP gateway for interfacing wired / wireless data, and reference numeral 118 denotes an authorized data through the communication interface unit 116. The signal conversion unit converts the data into postprocessable data.

In addition, reference numeral 120 denotes read data from the digital video disc 104 or the communication interface 116 applied through the digital signal input unit 112 according to the key input signal of the key input unit 102. A switching unit for switching the data applied through the media is shown.

On the other hand, reference numeral 122 denotes a data extracting unit for outputting an MPEG bit stream using the output signal of the digital signal input unit 112 and the file data downloaded via the communication interface unit 116 as its inputs, and a reference numeral 124. Denotes a buffer for temporarily storing the output data of the data extraction unit 122.

Reference numeral 126 denotes an MPEG decoder which outputs a video signal by reading and decoding the stored data of the buffer 124, and reference numeral 128 denotes a primary color data by combining output signals output from the MPEG decoder 126. A video / audio playback section for outputting video and audio signals by outputting (R, G, B) is shown.

Reference numeral 130 denotes a data storage unit for storing desired frame data, downloaded file data, various reproduction processing programs, and routing program among data stored in the buffer 124 when a storage and download request signal is generated from the key input unit 102. Indicates.

On the other hand, the reference numeral 132 generates the servo 110 control signal to the control unit 114 according to the Internet search, the specific file download, the DVD playback mode selected from the key input unit 102, the switching The switching control of the unit 120, the data input and output of the buffer 124, the decoding operation of the MPEG decoder 126 and the operation of the video / audio playback unit 128 and controls the communication interface in accordance with the download selection mode The main control unit controls to allow the real-time and delayed time download to the specific file applied through the unit 116 to be stored in the data storage unit 130.

In addition, a specific unique IP address is stored in the digital video disc player 100 in order to be able to access and search the Internet.

2A, 2B, and 2C are diagrams illustrating an example of a screen output to a digital video disc playback apparatus capable of interworking with a network through a data communication network according to an embodiment of the present invention.

Referring to this, the initial screen 304 output through the video / audio playback unit 128 of the digital video disc according to the mode selection of the key input unit 102 is output as shown in FIG. The screen 304 is provided with a selection icon for DVD playback 304a for selecting playback of a DVD and Internet search 304b for internet searching and downloading of a specific file, which are key inputs of the key input unit 102. It becomes selectable by operation.

In addition, when the icon of the Internet search 304b is selected according to the mode selection of the key input unit 102, as shown in FIG. 2B, a subpage 306 for Internet search is displayed. The subpage 306 is provided with a website input field 306a for inputting a website for Internet search, and a down side button with a favorites list on the side of the website input field 306a. There is an add bookmark button 306b for adding a bookmark to the website.

Meanwhile, the Internet search subpage 306 includes an output unit 308 for inputting and outputting a specific website in the website input field 306a, and as a separate subpage in the website input field 306a. Character input window 310 for inputting a specific character is provided. For example, various video files (eg, MPEG, avi files, etc.) displayed on the output unit 308 may be downloaded and stored in the data storage unit 130 of the digital video disc player 100 for playback. ) Is possible.

As described above, since a video file that can be downloaded and played back by accessing a specific website has a very large capacity, the present invention proposes two types of download methods as shown in FIG. 2C.

First, in FIG. 2B, when a specific file (for example, a sun.MPEG file is downloaded to be selected for download is displayed, a subpage 312 for downloading is displayed. The subpage 312 is provided with a real time download selection button 312a and a delay time download selection button 312b, respectively.

In the present invention, since the delay download is configured to execute the download from the time point at which the power-off signal is applied through the key input unit 102, the delay time download button 312b is transmitted through the key input unit 102. When the delay time download is selected by the operation, the main control unit 132 stores the website path of the specific file in the data storage unit 130, and the power-off signal from the key input unit 102. If is approved, the download will be executed.

With reference to the accompanying drawings, the function and operation of a digital video disc playback apparatus capable of interworking a network via a data communication network according to an embodiment of the present invention having the above-described configuration and a video signal download method using the same will be described in detail.

3 is a flowchart illustrating a signal flow of a digital video disc reproducing apparatus capable of interworking with a network through a data communication network according to an embodiment of the present invention.

Referring to this, first, DVD playback and Internet search are selected from the front page 304 shown in FIG. 2A. In this case, when the DVD playback is selected, the main controller 132 receives the key input signal and applies the disc read driving signal corresponding to the key input signal to the controller 114.

Then, the controller 114 controls the servo 110 according to the control signal of the main controller 132 so that the servo 110 controls the motor 106 to rotate the disk 104 at constant speed. In addition, as the pickup 108 is transported at a constant speed, data recorded on the disk 104 is detected and output to the digital signal input unit 112.

At this time, the digital signal input unit 112 under the control of the controller 114 outputs the digital signal to the switching unit 120 through signal processing such as filtering. At the same time, the main controller 132 controls the switching unit 120 to switch the signal applied from the digital signal input unit 112 to output the data to the data extraction unit 122.

The MPEG bit stream applied through the data extracting unit 122 is stored in the buffer 124 which is a variable bit rate memory, and then the MPEG decoder 126 stores the respective MPEG data stored in the buffer 124. Read and decode and the decoded video / audio signal is encoded through the video / audio reproducing unit, and generates primary color data (R, G, B) and outputs video and audio.

On the other hand, if the Internet search icon 304b on the front page 304 of the digital video disc player 100 is selected by the operation of the key input unit 102, the main control unit 132 applies the key input signal. In response, the switching unit 120 generates a switching control signal in a mode capable of internet communication.

At the same time, the main control unit 132 generates a connection request signal with the Internet network to the communication interface unit 116 to connect to the Internet network. At this time, by operating the key input unit 102, a specific website can be searched by inputting a website address into the specific website input box 306a as shown in FIG. 2B.

At this time, if it is desired to download a specific file in the corresponding website, the download subpage 312 is displayed and the real time download or the delayed time download can be selected.

If the subscriber selects the real-time download, the download is executed from the selection point. If the subscriber selects the real-time download, the subscriber executes the download after the preset delay time.

In the present invention, when the power-off signal is applied from the key input unit 102, the download is executed. Once the delay time download is selected, the main controller 132 connects to the download target file. And a download reservation file name in the data storage unit 130.

Then, when a power-off signal is applied from the key input unit 102, the main controller 132 turns off the power of the video / audio playback unit 128, and simultaneously downloads a reservation file from the data storage unit 130. Is searched for, and if a download reservation file exists, the website path of the file is read from the data storage unit 130.

Then, the main control unit 132 searches the website path of the file read from the data storage unit 130, executes the download of the file, and stores the data in the data storage unit 130 to determine whether the download is completed. You will be judged.

When the download of the file is completed, the main controller 132 turns off the power switch by controlling a power switch (not shown).

On the other hand, the digital video disc playback apparatus capable of interworking with a network via a data communication network according to an embodiment of the present invention and a video signal download method using the same are not limited to the above-described embodiments, but do not depart from the technical gist thereof. Various changes are possible in.

As described above, according to the digital video disc playback apparatus capable of network interworking through a data communication network and a video signal download method using the same according to the present invention, the Internet TV and various webs are connected by connecting the digital video disc playback apparatus to a general television monitor. It is possible to search and output the site, and to download a specific file, you can select real time download and delay time download, so it is very convenient because you can select the download of different functions according to the use of the digital video disc player. .

Claims (3)

A pickup for rotating the motor from the digital video disc recording audio and video data to detect recorded data; A servo controlling the motor and the pickup; A digital signal input unit which performs a process such as filtering the detection signal of the pickup; In the digital video disc playback device provided with a control unit for controlling the digital signal input unit and controlling the pickup and the motor, A key input unit for setting a mode and a function for searching various websites and downloading a specific file, selecting a download method, and playing a general DVD through wireless and wired networks through key operation; A communication interface unit for interface of wired / wireless data; A signal converting unit converting the applied data into post-processable data through the communication interface unit; A switching unit for switching read data from the digital video disc applied through the digital signal input unit or data applied through the communication interface unit according to a key input signal of the key input unit; A data extraction unit for outputting an MPEG bit stream using the output signal of the digital signal input unit and the file data down via the communication interface unit as its inputs; A buffer for temporarily storing output data of the data extraction unit; An MPEG decoder for outputting a video signal by reading and decoding stored data of the buffer; A video / audio playback unit for outputting video and audio signals by encoding the output signal output from the MPEG decoder and outputting primary color data (R, G, B); A data storage unit for storing desired frame data and downloaded file data, various reproduction processing programs, a path designation program, and a path of a download target file among data stored in the buffer when a storage and download request signal is generated from the key input unit; Generates the servo control signal to the control unit according to the Internet search generated from the key input unit, the specific file download, and the DVD playback mode, and also controls switching of the switching unit, data input / output of the buffer, and decoding of the MPEG decoder. Controlling the operation and operation of the video / audio playback unit and controlling the data to be stored in the data storage unit by executing a real time and delay time download of a specific file applied through the communication interface unit according to the download selection mode. A digital video disc playback device capable of interworking with a network via a data communication network, characterized in that the configuration. 2. The apparatus of claim 1, wherein the digital video disc playback apparatus has a unique IP address to enable internet access and retrieval. In the method of playing a digital video disc playback device, the digital video disc can be played back, connected to the Internet, searched, and downloaded to a specific file. Selecting a digital video disc playback operation or an Internet search operation by a key input operation; When the Internet search operation is selected, stopping the playback of the digital video disc and switching to a mode where communication connection and page down are possible; Selecting a delay download for the particular file; Storing a website path of a specific file; Detecting whether a power off signal is generated by a key input; Determining whether a download target file exists in the data storage unit; Searching for a file by a website path of a specific file stored in the data storage unit; Executing a download of the file; A method of downloading a video signal using a digital video disc playback device capable of interworking with a network via a data communication network comprising switching a power switch to turn off a power.