KR20040098459A - System and Method for Palying digital file inputted from the outside - Google Patents

Abstract

PURPOSE: A method for reproducing an external input digital file and a system are provided to convert a file standard into a standard of a digital TV if the file standard does not correspond to the digital TV standard, and to store or reproduce the converted file in real time, thereby reproducing various types of digital files in a digital TV system. CONSTITUTION: When file selection information is received from a user(S500), an external input device decides whether a standard of a selected file corresponds to a standard of a digital TV system(S502). If so, the external input device transmits the file to the digital TV system(S504). The digital TV system receives the transmitted file(S506), and stores or reproduces the file(S508). If the standard of the file does not correspond to the digital TV system standard, the external input device converts the file standard into the digital TV system standard(S510).

Description

System and Method for Palying digital file inputted from the outside}

The present invention relates to a method and system for reproducing an external input digital file for reproducing files having different standards on a digital TV.

The TV signal system is largely divided into analog and digital methods. All of conventional TVs have analog signals and process radio signals continuously over time, so that image quality and sound quality are not clear and only a limited channel can be viewed.

On the other hand, digital TV is a high-tech TV that converts analog signals into digital signals and adjusts them by computer circuits. It eliminates noise such as interference from other radio waves, and can select various information and programs, and reproduce various advanced images. There is.

In the future, as analog broadcasting ends, the function of the existing DTV receiver is expected to change significantly, and the PVR function, which is currently being issued, has many advantages in terms of users.

Hereinafter, the digital TV system as described above will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing the configuration of a conventional digital TV system.

Referring to FIG. 1, the digital TV system includes an RF receiver 100, a controller 110, a memory 120, a tuner 130, a demodulator 140, a decoder 150, an output unit 160, and a storage unit ( 170).

The RF receiver 100 receives a remote control code selected by a user and transmits the code to the controller 110.

The controller 110 analyzes a remote control code transmitted from the RF receiver 100 and transmits remote control code analysis information to a corresponding device.

For example, if the remote control code interpretation information is a channel change request command, the controller 110 transmits the channel change request command to the tuner 130.

The memory 120 includes a flash ROM for storing software such as an operating system and a DRAM for storing a virtual screen in the form of a bitmap that can be expressed in an output area.

The tuner 130 converts the radio signal transmitted through the antenna into an IF signal according to the analysis information of the remote control code selected by the user and transmits the converted radio signal to the demodulator 140.

The demodulator 140 demodulates the IF signal transmitted from the tuner 130 and transmits the demodulated signal to the decoder 150.

The decoder 150 converts the signal transmitted from the demodulator 140 into an analog signal and transmits it to the output unit 160.

The storage unit 170 stores the data transmitted from the control unit 110.

Hereinafter, the operation of the digital TV system configured as described above will be described.

The remote control code selected by the user is transmitted to the controller 110 through the RF receiver 100. The controller 110 analyzes the transmitted remote control code, extracts and operates software corresponding to the remote control code analysis information from the memory 120, and operates a device corresponding to the remote control code analysis information.

For example, if the remote control code analysis information is a channel change request command, the controller 110 adjusts the tuner 130 and then tunes the TV frequency to catch the TV signal.

The input TV signal is converted into an analog signal while passing through the demodulator 140 and the decoder 150, and then output through the output unit 160.

As described above, the digital TV system decodes the digital video / audio signal in hardware. These digital TV standards are based on the general digital video / audio compression standards.

However, the conventional digital TV system as described above has a problem in that it does not use various types of digital inputs because only a file conforming to its standard is reproduced.

In addition, since the decoder used in the digital TV system decodes only files that meet the standard, there is a problem in that a file transmitted from an external input device having various standards cannot be reproduced.

Accordingly, an object of the present invention is to provide a method and system for reproducing an external input digital file which can use various types of digital inputs using a digital TV.

Another object of the present invention is to provide a method and system for reproducing an external input digital file that can use digital video / audio transmitted in real time through various storage media or networks in a digital TV.

1 is a block diagram schematically showing the configuration of a conventional digital TV system.

Figure 2 is a block diagram showing the configuration of an external input digital file reproduction system according to an embodiment of the present invention.

3 is a block diagram schematically illustrating a configuration of an external input device according to an exemplary embodiment of the present invention.

Figure 4 is a block diagram schematically showing the configuration of a digital TV system according to an embodiment of the present invention.

5 is a flowchart illustrating a method of converting a file standard in an external input device according to an exemplary embodiment of the present invention.

6 is a flowchart illustrating a method of converting a file standard in a digital TV system according to an exemplary embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100, 400: RF receiver 110, 410: control unit

120, 420: Memory 130, 430: Tuner

140, 440: demodulator 150, 450: decoder

160, 460: output unit 170, 470: storage unit

200: external input device 210: digital TV system

300: determination unit 310: conversion unit

320: transmission unit 330: storage unit

480: external input unit

According to an aspect of the present invention to achieve the above objects, when file selection information is received from a user, it is determined whether the standard of the selected file corresponds to the standard of the digital TV to be reproduced, and the determination result If the standard of the file does not correspond to the standard of the digital TV, the standard of the file is converted to the standard of the digital TV, the external file characterized in that the stored file or reproduced in real time at the request of the user An input digital file playback method is provided.

According to another aspect of the present invention, when file selection information is received from a digital TV for reproducing a file or a user, it is determined whether a standard of the selected file corresponds to a standard of the digital TV, and then converted into a corresponding standard. An external input digital file reproduction system is provided, including an external input device for transmitting to the digital TV.

The external input device may be configured to determine whether the standard of the file selected by the user corresponds to the standard of the file of the digital TV to generate file standard conversion information, and corresponds to the file standard conversion information transmitted from the determination unit. A conversion unit for converting the standard, a storage unit for storing the converted file, and a transmission unit for transmitting the file converted into the standard of the digital TV to the digital TV.

The external input device is a device using a digital video / audio file, and the external input device transmits a file to the digital TV through a network or a storage device.

According to another aspect of the present invention, an external input device for transmitting a file selected by a user through a network or a storage device, by determining whether the standard of the file transmitted from the external input device corresponds to its own standard Provided is an external input digital file reproduction system comprising a digital TV for converting the digital TV.

The digital TV determines whether or not the external input unit for receiving the file transmitted from the external input device and the standard of the file transmitted from the external input unit correspond to its own pre-stored standard to generate file standard conversion information. A control unit, a decoder for converting the standard according to the file specification conversion information transmitted from the control unit, an output unit for reproducing the file transmitted from the decoder, and a storage unit for storing the file transmitted from the external input unit.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram showing the configuration of an external input digital file reproduction system according to an embodiment of the present invention.

Referring to FIG. 2, the external input digital file reproducing system includes an external input device 200 and a digital TV system 210.

The external input device 200 configures a standard of a file such as a digital video / audio for the digital TV system 210 and inputs and reproduces the digital TV system 210 through a network or a storage device.

The external input device 200 is a device that uses digital video / audio files such as a PC, a camcorder, and a mobile terminal. Here, the standard of the file may be mpeg2, mpeg4, avi, or the like.

That is, the external input device 200 determines whether or not the standard of the file corresponds to the standard of the digital TV system 210 to which the file is selected by the user. As a result of the determination, if the standard of the file corresponds to the standard of the digital TV system 210, the external input device 200 directly transmits the file to the digital TV system 210.

However, if the standard of the file does not correspond to the standard of the digital TV system 210 as a result of the determination, the external input apparatus 200 converts the standard of the file to correspond to the standard of the digital TV system 210. After that, it transmits to the digital TV system 210.

In other words, the external input device 200 checks whether the file selected by the user can be played in the digital TV system 210 and if not, converts the file to the digital TV system 210.

For example, it is assumed that the standard of the file selected by the user is MPEG2, and that the standard that the digital TV system 210 can process is MPEG4.

When the external input device 200 compares the standard of the file with the standard that the digital TV system 210 can process, the standard of the file is MPEG2, and the standard that the digital TV system 210 can process. Determines that the standard is different from MPEG4.

Thus, the external input device 200 converts the file of MPEG2 into the form of MPEG4 that can be processed by the digital TV system 210 and transmits the file to the digital TV system 210. The digital TV system 210 may then play the file.

A detailed description of the external input device 200 is shown in FIG. 3.

The digital TV system 210 stores a file transmitted from the external input device 200 in a storage unit or reproduces the file in real time.

According to another embodiment of the present invention, the digital TV system 210 determines whether the standard of the file transmitted from the external input device 200 corresponds to its own standard. As a result of the determination, if the standard of the file does not correspond to its own standard, the digital TV system 210 converts the standard of the file to correspond to its own standard, and stores the file in the storage unit or reproduces the file in real time. At this time, the external input device 200 does not determine whether the standard of the file selected by the user corresponds to the standard of the digital TV system 210.

Detailed description of the digital TV system 210 is shown in FIG. 4.

3 is a block diagram schematically illustrating a configuration of an external input device for determining a file size according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the external input device includes a determiner 300, a converter 310, a transmitter 320, and a storage 330.

The determination unit 300 determines whether the standard of the file selected by the user corresponds to the standard of the digital TV system, and transmits the file standard conversion information to the conversion unit 310.

The converting unit 310 converts the standard of the file into the standard of the digital TV system by using the file standard conversion information transmitted from the determining unit 300 and transmits the standard of the file to the transmission unit 320. That is, if the file standard conversion information is inconsistent, the conversion unit 310 extracts the digital TV system standard information from the storage unit 330, and then converts the standard of the file into the extracted standard. If the file specification conversion information is identical, the conversion unit 310 directly transmits the transmitted file to the transmission unit 320.

The transmitter 320 transmits a file corresponding to the standard of the digital TV system to the digital TV system.

Hereinafter, the operation of the external input device configured as described above will be described.

The external input device starts a program that converts it into a standard for digital TV systems. Then, when file selection information is received from the user, the determination unit 300 determines whether the selected file corresponds to the standard of the digital TV system. As a result of the determination, if the standard of the file corresponds to the standard of the digital TV system, the determination unit 300 temporarily stores the file in the storage unit 330 to transmit the file to the digital TV system.

If the result of the determination does not correspond to the standard of the digital TV system, the converting unit 310 converts the standard of the file into the standard of the digital TV system and then temporarily stores the file in the storage unit 330. Save it.

Then, the external input device transmits a file corresponding to the standard of the digital TV system to the digital TV system through the transmitter 320. At this time, the digital TV system does not check the file specification.

Here, the pre-stored file can be easily checked whether the standard is suitable for the digital TV system, but the file over the network is scanned in real time, and if necessary, the file is converted and then input into the digital TV system.

4 is a block diagram schematically illustrating a configuration of a digital TV system for determining a file standard according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the digital TV system includes an RF receiver 400, a controller 410, a memory 420, a tuner 430, a demodulator 440, a decoder 450, an output unit 460, and a storage unit ( 470, an external input unit 480.

The RF receiver 400 receives the remote control code selected by the user and transmits the code to the controller 410.

The controller 410 analyzes a remote control code transmitted from the RF receiver 400 and transmits remote control code analysis information to a corresponding device.

In addition, the controller 410 determines whether the standard of the file transmitted through the external input unit 480 corresponds to its own standard. If the result of the determination does not correspond to the specification of the transmitted file, the controller 410 transmits file specification conversion information to the decoder 450. In this case, the controller 410 stores information on its standard in advance.

The memory 420 may include a flash ROM for storing software such as an operating system and a DRAM for storing a virtual screen in a bitmap form that may be represented in an output area.

The tuner 430 converts the radio signal transmitted through the antenna into an IF signal according to the analysis information of the remote control code selected by the user, and transmits the radio signal to the demodulator 440.

The demodulator 440 demodulates the IF signal transmitted from the tuner 430 and transmits the demodulated signal to the decoder 450.

The decoder 450 converts the signal transmitted from the demodulator 440 into an analog signal and transmits it to the output unit 460.

When the file specification conversion information is received from the control unit 410, the decoder 450 converts the standard of the file into its own standard according to the file standard conversion information. Here, the decoder 450 pre-stores standard information such as MPEG2, 4, etc., and converts the standard information into a corresponding standard.

The output unit 460 outputs a signal transmitted from the decoder 450.

The storage unit 470 stores a file transmitted from an external input device.

The external input unit 480 transmits the file transmitted from the external input device to the decoder 350 and the control unit 410.

Hereinafter, the operation of the digital TV system configured as described above will be described.

First, the user instructs the digital TV system to execute an external input file reproduction program. Then, the digital TV system executes an external input file playing program and then plays back the file transmitted from the external input device. Hereinafter, a method of reproducing a file transmitted from the external input device by the digital TV system will be described.

The digital TV system demodulates the signal transmitted from the tuner 430 in the demodulator 440 and then decodes and reproduces the signal through the decoder 450. In addition, the digital TV system stores a file transmitted from an external input device and transmitted to the external input unit 480 in the storage unit 470 or reproduced using the decoder 450 in real time.

That is, the file transmitted through the external input unit 480 is transmitted to the controller 410 and the decoder 450. Then, the controller 410 determines whether the standard of the transmitted file corresponds to its own standard. As a result of the determination, if the standard of the file corresponds to its own standard, the controller 410 causes the file to be stored in the storage 470 or reproduced through the decoder 450 in real time.

If the result of the determination does not correspond to the standard of the file, the controller 410 transmits the file standard conversion information to the decoder 450.

Then, the decoder 450 converts the standard of the file into its own standard according to the file standard conversion information transmitted from the control unit 410, and then stores the output in the storage unit 470 through the storage unit 470. Output

5 is a flowchart illustrating a method of converting a file specification in an external input device according to an exemplary embodiment of the present invention.

Referring to FIG. 5, when file selection information is received from the user (S500), the external input device determines whether the standard of the selected file corresponds to the standard of the digital TV system to be transmitted (S502).

If the standard of the selected file corresponds to the standard of the digital TV system to be transmitted, the external input device transmits the file to the digital TV system (S504).

Then, after receiving the file transmitted from the external input device (S506), the digital TV system performs storage or playback (S508). That is, the digital TV system may store the file in the storage unit and then play the file at the request of the user, and may play the file in real time. If you save the file as a storage, you can save and manage the file. In real time, a file transmitted from an external input device through a network is played by a decoder.

If it is determined in step 502 that the standard of the selected file does not correspond to the standard of the digital TV system to be transmitted, the external input device converts the standard of the selected file into a standard corresponding to the digital TV system (S510). Step 504.

6 is a flowchart illustrating a method of converting a file standard in a digital TV system according to an exemplary embodiment of the present invention.

Referring to FIG. 6, when file information is received from an external input device (S600), the digital TV system determines whether the standard of the received file corresponds to its own standard (S602).

As a result of the determination in step 602, if the specification of the received file corresponds to its specification, the digital TV system stores or reproduces the received file in real time at the request of the user (S604). The stored file can be reproduced at the request of the user.

If the result of the determination of step 602 does not correspond to the specification of the received file, the digital TV system converts the specification of the received file to match its own specification (S606), and then, step 604 is performed. Perform.

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

As described above, according to the present invention, it is possible to provide an external input digital file reproducing method and system capable of reproducing various types of digital files input from the outside in a digital TV system.

Claims (7)

If file selection information is received from a user, determining whether the standard of the selected file corresponds to the standard of the digital TV to be reproduced; Converting the standard of the file into the standard of the digital TV if the standard of the file does not correspond to the standard of the digital TV; Storing or reproducing the converted file in response to a request of the user External input digital file playback method comprising the. Digital TV for playing files; When the file selection information is received from the user, it is determined whether the standard of the selected file corresponds to the standard of the digital TV, and then converted to a corresponding standard and transmitted to the digital TV. External input digital file playback system comprising a. The method of claim 2, The external input device may include: a determination unit configured to determine whether a standard of a file selected by a user corresponds to a standard of a file of the digital TV and generate file standard conversion information; A converting unit converting the standard corresponding to the file standard conversion information transmitted from the determining unit; A storage unit for storing the converted file; and And a transmission unit for transmitting a file converted to the standard of the digital TV to the digital TV. The method of claim 2, And the external input device is a device using a digital video / audio file. The method of claim 2, And transmitting the file to the digital TV by the external input device through a network or a storage device. An external input device for transmitting a file selected by a user through a network or a storage device; A digital TV converting a standard by determining whether a standard of a file transmitted from the external input device corresponds to its own standard. External input digital file playback system comprising a. The method of claim 5, The digital TV may include: an external input unit configured to receive a file transmitted from the external input device; A controller configured to determine whether a standard of a file transmitted from the external input unit corresponds to a previously stored standard, and generate file standard conversion information; A decoder for converting a standard according to file standard conversion information transmitted from the control unit; An output unit for reproducing a file transmitted from the decoder; And a storage unit for storing a file transmitted from the external input unit.