KR100800000B1 - Video display apparatus for transferring image data format to condition of external device and control method thereof - Google Patents

Abstract

The present invention relates to a video display device for converting a data format in accordance with a condition of an external video device and a control method thereof. The present invention provides a data transmission and reception unit for receiving a data transmission request and device information from an external video device and transmitting the converted data; And analyzing corresponding device information received through the data transmission and reception unit, selecting at least one or more data to be converted and transmitted from data previously stored in a storage unit, and selecting the selected support format according to the analyzed external image device information. And a control unit for converting data. The apparatus may further include a display processing module configured to convert the image format of the data or change the resolution under the control of the controller. The controller may determine the capacity of the selected data, and compress and transmit the capacity of the data when there is insufficient data storage space of the external video device according to the analyzed information. Therefore, by automatically converting and outputting the size, resolution and format of the image data in accordance with the conditions of the external video device, it is not necessary to have a device containing a separate conversion program, simplifying the configuration and reducing the cost Anyone can easily perform the conversion function.

External, visual, device, data, format, display, data transfer, compression, conversion

Description

Video display apparatus for transferring image data format to condition of external device and control method

1 is a block diagram showing a general digital video display device.

2 is a block diagram illustrating a process of converting and transmitting video data between a conventional video display device and an external video device.

Figure 3 is a block diagram showing a video display device for converting the data format in accordance with the conditions of the external video device according to the present invention.

4 is a flowchart illustrating a control method of a video display device for converting a data format according to a condition of an external video device according to the present invention.

5 and 6 are screen configuration diagrams showing a process of converting the image data format in accordance with the conditions of the external video device of the video display device according to the present invention.

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

200: DTV tuner unit 210: demodulator unit

220: transport demux 230: decoder unit

231: video decoding module 232: audio decoding module

233: Clock recovery and A / V synchronization processor 234: Display processing module

240: display unit 250: speaker

260 control unit 270 storage unit

280: data transmission and reception unit 300: mobile phone terminal

310: mobile phone terminal main body 320: data transmission and reception unit

The present invention relates to a video display device, and more particularly, to a video display device for converting a data format in accordance with the conditions of an external video device, and a control method thereof.

In general, a video display device is a device for displaying video information on a screen, and typical devices include a television system (TV) for receiving a radio wave of a broadcasting station and displaying a video, and a hard disk built in a set-top box or a television body. And a personal video recorder (PVR) for recording and playing back information.

In conventional analog television broadcasting, video signals to be transmitted are modulated by AM or FM and transmitted through radio waves or cables. With the recent development of digital technologies such as digital image compression and digital modulation and demodulation, the standardization of digital television (DTV) broadcasting is rapidly progressing, and existing terrestrial, satellite and cable broadcasting are based on MPEG (Moving Picture Experts Group). Is digitizing.

As such, digital broadcasting can provide higher quality of service than analog service according to the development of digital video / audio compression technology and digital transmission technology, and can transmit multiple broadcast programs in the same bandwidth, digital communication media and digital storage. There is an advantage in that interoperability with the media can be improved.

1 is a block diagram illustrating a conventional digital video display device.

As shown in the drawing, a conventional video display device physically selects a specific channel and receives the DTV tuner 100 and the DTV tuner 100 for receiving a digital broadcast signal in the form of a transport stream on the selected channel. A demodulator unit 110 for demodulating a transport stream; A transport demux 120 for demultiplexing the demodulated transport stream into respective video bitstreams (MPEG-2 Bitstream), audio bitstreams (AC-3 Bitstream), and PSIP data; A decoder unit 130 for decoding the demultiplexed signals from the transport demux 120 and outputting video and audio signals; A display unit 140 displaying the video signal on a screen; A speaker 150 for outputting the audio signal; Outputs a channel and program selection signal to the DTV tuner unit 100 and the demodulator unit 110 according to the user's program selection and the PSIP data output from the transport demux 120, and displays an on-screen display (OSD). A control unit 160 providing a function and outputting a storage command of an image signal set by a user; The storage unit 170 stores a video signal received through the DTV tuner 100 according to a storage command of the image signal of the controller 160.

In addition, the decoder 130 may include a video decoding module 131 for decoding a video bitstream (MPEG-2 Bitstream) into a video signal, and an audio decoding module for decoding an audio bitstream (AC-3 Bitstream) into an audio signal. 132 and receiving time stamps from the respective video and audio bitstreams to process clock recovery and A / V synchronization signals of the video decoding module 131 and the audio decoding module 132. A clock recovery and A / V synchronization processor 133; And a display processing module 134 for converting the video signal decoded by the video decoding module 131 into a displayable image output format. The display processing module 134 is a scaler function, and an appropriate aspect ratio (or aspect ratio), for example, 4: 3 screen, 16: 9 screen, zoom, wide, or spectacle, etc. To scale the aspect ratio of various sizes.

The conventional video display device configured as described above can provide a large screen with high resolution and a large size, but is not portable. Therefore, portable multimedia players with not only music playback but also video playback and digital camera functions, such as portable multimedia player (PMP), have become widespread in recent years, and video display functions have been embedded in mobile terminals such as PDAs and cellular phones. to be.

Meanwhile, the conventional video display device provides a function of simply outputting an image data file stored therein to an external device and displaying it on another video display device or the portable external video device.

However, the portable external image device cannot display high resolution image data displayed on the large screen because the screen size and the supported resolution are relatively small due to space and volume constraints. Therefore, there is a need for a device that converts it to an appropriate format.

For this format conversion, in the related art, as shown in FIG. 2, high resolution image data output from a TV or PVR 10 is input to a computer 20 through a USB or a serial cable, and the computer 20 appropriately inputs the image data. The resolution, size and format were converted and transmitted back to the mobile phone (30).

That is, by moving and storing the image data stored in the storage device of the TV or PVR 10 to the computer 20, and also using the Pc sync from the mobile phone 30, multimedia data such as photos, videos, themes, contacts, schedules Personal information such as to-do, memo, etc. are transmitted to the computer 20. The computer 20 reprocesses the image data according to a format according to the model of the corresponding mobile phone by using a separate conversion program and transmits it to the mobile phone 30.

However, such a prior art has to be equipped with computer hardware and interface equipment including a separate conversion program, the operation process is complicated, not only a professional skilled in the computer to perform the conversion function, but also a mobile phone according to each model There is a problem in that a lot of work time is required, such as reprocessing image data according to different formats.

Accordingly, the present invention is to solve the above-mentioned conventional problems, and automatically converts the size, resolution, and format of the image data in accordance with the conditions of the external video device in the video display device without the need for separate equipment and outputs It is an object of the present invention to provide a video display device for converting a data format in accordance with a condition of an external video device and a control method thereof.

The video display device for converting the data format in accordance with the conditions of the external video device according to the present invention for achieving the above object, receives a data transmission request and device information from the external video device, and transmits and receives data for transmitting the converted data part; And analyzing corresponding device information received through the data transmission and reception unit, selecting at least one or more data to be converted and transmitted from data previously stored in a storage unit, and selecting the selected support format according to the analyzed external image device information. And a control unit for converting data.

The apparatus may further include a display processing module configured to convert the image format of the data or change the resolution under the control of the controller. The controller may determine the capacity of the selected data, and compress and transmit the capacity of the data when there is insufficient data storage space of the external video device according to the analyzed information.

In addition, the data stored in the storage unit is image or sound data. The device information received from the external video device includes device type, video format, supported resolution, and memory space information. More preferably, the device information further includes authentication information of the user.

In addition, the control method of the video display device for converting the data format in accordance with the conditions of the external video device according to the present invention, receiving a data transmission request and device information from the external video device, and analyzing the device information; Selecting at least one or more data to be converted and transmitted from previously stored data; And converting the selected data into a corresponding support format according to the analyzed external video device information and transmitting the converted data.

The data conversion transmission step converts the image format of the data or changes the resolution. In the data conversion and transmitting step, it is preferable to determine the capacity of the selected data and to compress and transmit the capacity of the data when the data storage free space of the external image device is insufficient according to the analyzed information.

The data is video or sound data. The device information received from the external video device includes device type, video format, supported resolution, and memory space information. The information of the external video device may further include authentication information of a user.

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

3 is a block diagram illustrating a video display device for converting a data format according to a condition of an external video device according to the present invention.

As shown in the present invention, the DTV tuner 200, the demodulator 210, the transport demux 220, the decoder 230, the video decoding module 231, the audio decoding module 232, Clock recovery and A / V synchronization processing unit 233, display processing module 234, display unit 240, speaker 250, control unit 260, storage unit 270, data transmission and reception unit 280, mobile phone terminal 300, the mobile phone terminal body 310 and the data transmission and reception unit 320.

The DTV tuner 200 receives a digital broadcast signal in the form of a transport stream on the selected channel. The demodulator unit 210 demodulates the transport stream received by the DTV tuner unit 200. The transport demux 220 demultiplexes the demodulated transport stream into respective video bitstreams, audio bitstreams, and PSIP data. The decoder 230 decodes each signal demultiplexed by the transport demux 220 and outputs a video and audio signal.

To this end, the decoder 230 includes a video decoding module 231 for decoding a video bitstream (MPEG-2 Bitstream) into a video signal, and an audio decoding module for decoding an audio bitstream (AC-3 Bitstream) into an audio signal. 232 and time stamps received from the respective video and audio bitstreams to process clock recovery and A / V synchronization signals of the video decoding module 231 and the audio decoding module 232. A clock recovery and A / V synchronization processor 233; And a display processing module 234 for converting the video signal decoded by the video decoding module 231 into a displayable image output format. The display unit 240 displays the video signal on the screen, and the speaker 250 outputs the audio signal to an indoor or outdoor space. The display unit 240 is a screen constituting an actual image, various configurations such as CRT, PDP, LCD, OLED, and projection are possible.

The storage unit 270 stores the video signal received through the DTV tuner 200 at the adjusted reservation recording time according to the video signal storage command of the controller 260. It also stores the image data or sound data to be converted and transmitted.

In addition, the data transceiver 280 receives the data transmission request and the device information from the external image device 300, and transmits the converted data. To this end, the data transmission and reception unit 280 is preferably an infrared transmission and reception, or a Bluetooth short-range communication method is applied.

The control unit 260 outputs a video signal storage command by adjusting a preset recording time according to the changed EPG information included in the PSIP data according to the changed EPG information. In addition, the controller 260 outputs a channel and program selection signal to the DTV tuner 200 and the demodulator 210 according to a user's program selection and the PSIP data output from the transport demux 220. . The control unit 260 may be configured with conventional control means having a comparison, determination, and arithmetic functions such as a micro-processor, a microcomputer, a central processing unit (CPU), a microprocessor unit (MPU), or the like. .

The controller 260 analyzes the corresponding device information received through the data transceiver 280, selects at least one or more data to be converted and transmitted from data previously stored in the storage 270, and analyzes the corresponding device information. The selected data is converted into a corresponding support format according to the information of the external video device.

In this case, the display processing module 234 converts the image format of the data stored in the storage unit 270 or physically changes the resolution under the control of the controller 260.

In addition, the controller 260 determines the capacity of the selected data, and compresses and transmits the capacity of the data when there is insufficient data storage space of the external video device 300 according to the analyzed information.

Accordingly, the device information received from the external video device 300 includes device type, video format, supported resolution, and memory space information, and further includes user authentication information. For example, when the external image device 300 is a mobile phone, it includes manufacturer information, mobile phone model information, display information, memory information, and the like.

As such, the external image device 300 typically includes a data transceiver 320 for transmitting and receiving data between the terminal body 310 such as a mobile phone or an MP3 and the data transceiver 280.

4 is a flowchart illustrating a control method of a video display device for converting a data format according to a condition of an external video device according to the present invention, and FIGS. 5 and 6 are diagrams illustrating conditions of an external video device of the video display device according to the present invention. A screen configuration diagram showing a process of converting an image data format accordingly.

As shown, the present invention includes the steps of receiving a data transmission request and device information from an external video device, and analyzing the corresponding device information (S101 to S103); Selecting at least one or more data to be converted and transmitted from previously stored data (S105 to S106); And converting and transmitting the selected data into a corresponding support format according to the analyzed external video device information (S110).

The data conversion transmission step (S110) converts the image format of the data or changes the resolution. In the data conversion transmission step, the capacity of the selected data is determined, and if the data storage free space of the external image device is insufficient according to the analyzed information, the data capacity is compressed and transmitted (S109).

The data is video or audio data, and the device information received from the external video device includes device type, video format, supported resolution, and memory space information.

In addition, the information of the external video device further includes authentication information and an authentication step of the user (S104).

Referring to the preferred embodiments of the present invention configured as described above in more detail with reference to the accompanying drawings as follows.

First, the DTV tuner 200 receives a digital broadcast signal in the form of a transport stream on a selected channel, and the demodulator 210 demodulates the transport stream received by the DTV tuner 200. The transport demux 220 demultiplexes the demodulated transport stream into respective video bitstreams, audio bitstreams, and PSIP data. As described above, each signal demultiplexed by the transport demux 220 is decoded by the decoder 230 and output as video and audio signals.

That is, the video decoding module 231 of the decoder 230 decodes the video bitstream (MPEG-2 Bitstream) into a video signal, and the audio decoding module 232 decodes the audio bitstream (AC-3 Bitstream). The video decoding module 231 and the audio decoding module 232 decode the audio signal, and the clock recovery and A / V synchronization processor 233 receives a time stamp signal from the respective video and audio bitstreams. It handles clock recovery and A / V sync signal. In addition, the display processing module 234 converts the video signal decoded by the video decoding module 231 into a displayable image output format. In addition, the display unit 240 displays the video signal on the screen, and the speaker 250 outputs the audio signal to the indoor and outdoor spaces.

In the state where the general image display process is performed as described above, a data transmission request and device information are received from an external video device according to the present invention, and the corresponding device information is analyzed (S101 to S103).

That is, the data transceiver 280 receives the data transmission request and the device information from the external image device 300 through the infrared transmission and reception method.

The data transmitting / receiving unit 280 may be a general RS-232C serial communication method or a Bluetooth short-range communication method using an RF radio signal.

In this case, the data is video or audio data, and the device information received from the external video device 300 includes a type of mobile phone device, an image format, a supported resolution, and memory space information.

In addition, the information of the external video device 300 further includes authentication information of the user, thereby performing the step of authenticating the user of the mobile phone (S104). Therefore, a security function can be performed through this authentication step, and a desired data file can be transmitted by designating a terminal of a specific user.

Thereafter, the control unit 260 selects at least one or more data to be converted and transmitted from previously stored data (S105 to S106). In this case, when the selected data is image data, the image format is changed or the resolution is changed.

Such a format conversion may be automatically performed. As shown in FIG. 5, after selecting a file to be converted according to a user's selection, a resolution of, for example, VGA or XGA may be selected and converted. have.

Accordingly, the controller 260 analyzes the corresponding device information received through the data transceiver 280, selects at least one or more data to be converted and transmitted from data previously stored in the storage unit 270, and then analyzes the external information. The selected data is converted into a corresponding support format according to the information of the video device.

In this case, the display processing module 234 includes a general scaler function, and under the control of the controller 260, converts the image format of data stored in the storage unit 270 or physically changes the resolution. That is, as an example, the resolution of the TV is converted from the resolution 1024 * 768 of the mobile phone to the resolution 640 * 350.

The selected data is converted into a corresponding support format according to the analyzed external video device 300, and the converted data is externally transmitted from the data transmission / reception unit 280 of the TV set as shown in FIG. The image or audio data changed by the data transmission / reception unit 320 of the imaging apparatus 300 may be transmitted and stored through an infrared transmission / reception scheme or a Bluetooth near-field communication scheme (S110 to S112).

Meanwhile, the controller 260 may check the capacity of the data and compress the data at a predetermined rate before transmitting the format-converted data to the external video device 300.

That is, in the data conversion transmission step, the capacity of the selected data is determined, and if the data storage free space of the external image device is insufficient according to the analyzed information, the capacity of the data is compressed and transmitted.

In this case, the controller 260 determines the capacity of the selected data, and compresses and transmits the capacity of the data when there is insufficient data storage space of the external video device 300 according to the analyzed information (S109). S111).

Accordingly, the compressed file is received and stored by the data transmission / reception unit 320 of the external video device 300, and if necessary, it is expanded and displayed or reproduced (S112).

The present invention described above can be applied not only to flat panel display devices such as PDPs and LCDs, but also to projection TVs, general TVs, monitors, and other video devices, and can be equally applied to analog TVs, digital TVs, and satellite TVs. In addition, it can of course be applied to all NTSC, PAL, SECAM method.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments without departing from the spirit of the present invention as claimed in the claims. Anyone skilled in the art can, of course, make various changes and make such changes as fall within the stated claims.

As described above, according to the video display device and the control method of converting the data format in accordance with the conditions of the external video device according to the present invention, the video display device in accordance with the conditions of the external video device in the video display device without the need for additional equipment By automatically converting and outputting data size, resolution, and format, it is not necessary to have computer hardware and interface equipment including a separate conversion program, which simplifies the configuration, reduces the cost, and complicates the operation process. Since anyone can easily perform the conversion function, not only professional personnel are required, but also various effects can be greatly reduced.

Claims (12)

A data transmission / reception unit configured to receive a data transmission request and device information from an external image device and to transmit converted and compressed data; And Analyze the corresponding device information received through the data transmission and reception unit, select at least one or more data to be converted and transmitted from data previously stored in the storage unit, and the selected data in a corresponding support format according to the analyzed external video device information. And a control unit for converting and compressing the data format according to the conditions of the external video apparatus. The method of claim 1, And a display processing module for converting the image format of the data or changing the resolution according to the control of the control unit. The method of claim 1, The controller may determine the capacity of the selected data, and if the data storage free space of the external video device is insufficient according to the analyzed information, compresses and transmits the data capacity. An image display device for converting a data format in accordance with. The method of claim 1, And the data stored in the storage unit converts the data format according to the condition of the external video device. The method of claim 1, The device information received from the external video device includes a device type, an image format, a supported resolution, and memory space information. The method of claim 5, And the device information converts a data format according to a condition of an external video device, further comprising authentication information of a user. Receiving a data transmission request and device information from an external video device and analyzing the corresponding device information; Selecting at least one or more data to be converted and transmitted from previously stored data; And Controlling the video display device to convert the data format according to the condition of the external video device, comprising converting, compressing, and transmitting the selected data in a corresponding support format according to the analyzed external video device information. Way. The method of claim 7, wherein The data conversion transmission step; And converting the data format according to the condition of the external video apparatus, characterized in that the video format of the data is changed or the resolution is changed. The method of claim 7, wherein The data conversion transmission step; Determining the capacity of the selected data, and if the data storage space of the external video device is insufficient according to the analyzed information, compressing the data capacity to transmit the data capacity according to the condition of the external video device A control method of a video display device to be converted. The method of claim 7, wherein And the data is video or audio data. The control method of a video display device converting a data format according to a condition of an external video device. The method of claim 7, wherein The device information received from the external video device includes a device type, a video format, a supported resolution, and memory space information. The method of claim 11, The information of the external video device is a control method of a video display device for converting the data format in accordance with the conditions of the external video device, characterized in that it further comprises a user authentication information.

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