KR20160028127A

KR20160028127A - multimedia apparatus and method for providing high-definition contents thereof

Info

Publication number: KR20160028127A
Application number: KR1020140116737A
Authority: KR
Inventors: 이동희; 이병윤
Original assignee: 엘지전자 주식회사
Priority date: 2014-09-03
Filing date: 2014-09-03
Publication date: 2016-03-11

Abstract

The present invention relates to a multimedia device capable of providing a desired content as high-quality content, and a method of providing high-definition content, the method comprising: recording content of a current channel broadcast received; Analyzing the analyzed content, searching for the same content having a higher image quality than the analyzed image quality to obtain high-quality content, and replacing the recorded content with the acquired high-quality content.

Description

[0001] The present invention relates to a multimedia apparatus and a method for providing high-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a multimedia device, and more particularly, to a multimedia device capable of providing a user with a desired content as high-quality contents and a method of providing high-definition content.

Generally, a multimedia device is a device having a function of receiving and processing a broadcast image that a user can view.

In addition, the multimedia device can display a broadcast selected by the user among the broadcast signals transmitted from the broadcasting station on the display.

Currently, broadcasting is changing from analog broadcasting to digital broadcasting around the world.

Here, digital broadcasting refers to a broadcasting for transmitting digital video and audio signals. Compared with analog broadcasting, digital broadcasting is strong against external noise and has a small data loss, is advantageous for error correction, has a high resolution, and provides a clear screen can do.

Also, unlike analog broadcasting, digital broadcasting is capable of bidirectional service.

Recently, a multimedia device has been improved in performance and versatility in comparison with existing multimedia devices in order to use digital broadcasting, and various services available in multimedia devices such as Internet service, VOD (Video On Demand), and electronic album service are diversified .

In addition, recently, multimedia devices capable of providing super high-quality images such as UHD TVs have begun to be widely used, but there is a lack of super high-quality contents to be used.

In addition, cable broadcasting and comprehensive broadcasting channels are beginning to provide high-quality broadcasting, and the broadcasting environment is changing to provide users with high-quality contents.

However, existing multimedia devices set image quality elements such as sharpness, brightness, contrast and the like in order to improve the quality of recorded contents.

That is, the multimedia apparatus improves the image quality only by changing the setting without changing the input source, and there is no way to replace the recorded content itself.

Therefore, it will be necessary to develop a multimedia device capable of analyzing the image quality of the recorded content and replacing it with the same content having higher image quality than the recorded content in the future.

An embodiment of the present invention provides a multimedia device capable of analyzing the quality of recorded content and replacing it with the same content having higher image quality than the recorded content, and a method for providing high-definition content.

A multimedia device according to an embodiment of the present invention includes a communication module for receiving content, a storage module for storing received content, a display module for displaying content, and a controller for controlling operation of the multimedia device, The controller analyzes the image quality of the stored current content, acquires high-quality content by searching for the same content having a higher image quality than the analyzed image quality, and replaces the stored current content with the acquired high-quality content.

According to another aspect of the present invention, there is provided a method of providing high-definition content of a multimedia device, the method comprising: recording content of a current channel broadcast received; analyzing an image quality of the recorded content when recording of the content ends; Retrieving the same content having a higher image quality than the image quality of the received content to acquire the high-quality content, and replacing the recorded content with the acquired high-quality content.

According to an embodiment of the present invention, there is an effect that the image quality of the recorded content is analyzed and replaced with the same content having a higher image quality than that of the recorded content to be provided to the user.

In addition, since the automatically recorded content is changed to high-quality content, the present invention has an effect of providing convenience to the user.

Further, the present invention can cope with a rapidly changing broadcasting environment and a rising broadcast image quality, and has an effect of changing consumers' perception of a high-quality multimedia device.

1 is a view schematically showing a broadcasting system including a multimedia apparatus according to the present invention;
2 is a block diagram illustrating the multimedia device of FIG.
FIG. 3 is a block diagram showing the control unit shown in FIG. 2 in more detail;
4 is a detailed block diagram of a configuration module of a multimedia device according to another embodiment of the present invention.
5 is a view for explaining a process of acquiring high-quality contents of a multimedia device according to an embodiment of the present invention;
6 is a diagram showing an example of online EPG information of FIG. 5; FIG.
7 to 11 are flowcharts for explaining a high-definition content providing method of a multimedia apparatus according to the present invention.
12 is a view showing a message window displayed on the screen of the multimedia device

Hereinafter, the present invention will be described in more detail with reference to the drawings.

The suffix "module" and " part "for components used in the following description are given merely for ease of description, and the" module "and" part "

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

As used herein, terms used in the present invention are selected from general terms that are widely used in the present invention while taking into account the functions of the present invention, but these may vary depending on the intention or custom of a person skilled in the art or the emergence of new technologies. In addition, in certain cases, there may be a term arbitrarily selected by the applicant, in which case the meaning thereof will be described in the description of the corresponding invention. Therefore, it is intended that the terminology used herein should be interpreted based on the meaning of the term rather than on the name of the term, and on the entire contents of the specification.

Meanwhile, the multimedia device described in this specification is an intelligent multimedia device that adds a computer support function to a broadcast reception function, for example, and is equipped with an Internet function while being faithful to a broadcast reception function. The multimedia device includes a handwriting input device, A remote control device, and the like.

In addition, a wired or wireless Internet function can be connected to the Internet and a computer to perform functions such as e-mail, web browsing, banking, or games. A standardized general-purpose OS can be used for these various functions.

Therefore, the multimedia device described in the present invention can freely add or delete various applications, for example, on a general-purpose OS kernel, so that various user-friendly functions can be performed.

More specifically, the multimedia device may be, for example, a network TV, an HBBTV, a smart TV, or the like, and may be applicable to a smartphone in some cases.

1 is a schematic view of a broadcasting system including a multimedia device according to the present invention.

1, a broadcasting system including a multimedia device includes a content provider (CP) 10, a service provider (SP) 20, a network provider (NP) 30 and HNED 40, respectively.

Here, the HNED 40 may correspond to the client 100, which is a multimedia device, and the client 100 corresponds to a multimedia device, and the multimedia device may be, for example, a network TV, a smart TV, an IPTV,

Then, the content provider 10 can produce and provide various contents.

Here, the content provider 10 may include a terrestrial broadcaster, a cable SO (System Operator) or an MSO (Multiple System Operator), a satellite broadcaster, an Internet broadcast sender Internet broadcaster).

In addition, the content provider 10 may provide various applications in addition to the broadcast content.

Then, the service provider 20 can provide the contents provided by the contents provider 10 in a service package.

For example, the service provider 20 can package the first terrestrial broadcast, the second terrestrial broadcast, the cable MSO, the satellite broadcast, various Internet broadcasts, applications, and the like to provide the package to the user.

Meanwhile, the service provider 20 can provide a service to the client 100 using a unicast or multicast method.

Here, the unicast method is a method of transmitting data 1: 1 between one sender and one receiver.

For example, in a unicast method, when a receiver requests data from a server, the server can transmit data to the receiver upon request.

The multicast method is a method of transmitting data to a plurality of receivers of a specific group.

For example, the server can transmit data to a plurality of receivers registered in advance. An Internet Group Management Protocol (IGMP) protocol can be used for multicast registration.

Next, the network provider 30 may provide a network for providing services to the client 100.

Here, the client 100 may be provided with a service by building a home network end user (HNED).

The broadcast system including the multimedia device may be used as conditional access or content protection as a means for protecting transmitted contents.

As an example of such restriction reception or content protection, a scheme such as a cable card (CableCARD) and a DCAS (Downloadable Conditional Access System) may be used.

On the other hand, the client 100 may also be able to provide the content through the network. In this case, conversely, conversely, the client 100 may be a content provider, And may receive the content from the mobile terminal 100.

In this case, there is an advantage that an interactive content service or a data service is possible.

FIG. 2 is a block diagram illustrating the multimedia device of FIG. 1. FIG.

2, the multimedia device 100 includes a broadcast receiving unit 105, an external device interface unit 135, a storage unit 140, a user interface unit 150, a control unit 170, a display unit 180, an audio output unit 185, and a power supply unit 190.

Here, the broadcast receiver 105 may include a tuner 110, a demodulator 120, and a network interface 130.

Of course, the tuner 110 and the demodulator 120 may be provided, but the network interface 130 may not be included. Alternatively, the tuner 110 and the demodulator 120 may be included, It is also possible to design the demodulation unit 120 not to include it.

At this time, the tuner 110 can select an RF broadcast signal corresponding to a channel selected by the user or all pre-stored channels among RF (Radio Frequency) broadcast signals received through the antenna, Frequency signal or a baseband image or a voice signal.

The tuner 110 may receive an RF broadcast signal of a single carrier according to an Advanced Television System Committee (ATSC) scheme or an RF broadcast signal of a plurality of carriers according to a DVB (Digital Video Broadcasting) scheme.

Next, the demodulation unit 120 can output the stream signal TS after demodulation and channel decoding.

The stream signal output from the demodulation unit 120 may be input to the control unit 170. The control unit 170 may perform demultiplexing and video / And output audio to the audio output unit 185. [

Next, the external device interface unit 135 can connect the multimedia device 100 with the external device.

The external device interface unit 135 may be connected to an external device such as a DVD (Digital Versatile Disk), a Blu ray, a game device, a camera, a camcorder, a computer (notebook)

The external device interface unit 135 can transmit external video, audio, or data signals to the control unit 170 of the multimedia device 100 through the connected external device, Video, audio, or data signals to the connected external device.

To this end, the external device interface unit 135 may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

Here, the A / V input / output unit includes a USB terminal, a Composite Video Banking Sync (CVBS) terminal, a component terminal, an S-video terminal (analog) A DVI (Digital Visual Interface) terminal, an HDMI (High Definition Multimedia Interface) terminal, an RGB terminal, a D-SUB terminal, and the like.

The wireless communication unit can perform short-range wireless communication with other electronic devices.

Next, the multimedia device 100 may be a Bluetooth (registered trademark), a radio frequency identification (RFID), an infrared data association (IrDA), an ultra wideband (UWB), a ZigBee, Alliance), and the like.

Also, the external device interface unit 135 may be connected to the various set-top boxes via at least one of the various terminals described above to perform input / output operations with the set-top box.

The network interface unit 130 may provide an interface for connecting the multimedia device 100 to a wired / wireless network including the Internet network. The network interface unit 130 may connect the wired network to the wired / For example, a WLAN (Wireless LAN) (Wi-Fi), a Wibro (Wireless broadband), a Wimax (World Interoperability for Microwave Access (HSDPA), and High Speed Downlink Packet Access (HSDPA) communication standards.

The network interface unit 130 can then transmit or receive data to another user or another electronic device via the network to which it is connected or another network linked to the connected network.

Next, the storage unit 140 may store a program for each signal processing and control in the control unit 170, or may store a signal-processed video, audio, or data signal.

The storage unit 140 may perform a function of temporarily storing video, audio, or data signals input from the external device interface unit 135 or the network interface unit 130, May store information on a predetermined broadcast channel through a channel memory function.

The storage unit 140 may store the position of the predetermined cursor and the default value for the image of the cursor.

In some cases, the storage unit 140 may store a transmission mode in which the position information of the cursor and the image information of the cursor are set in advance by default.

Here, the transmission mode may be any one of the first, second, and third modes.

In this case, the first mode is a mode in which the cursor position information and the cursor image information are embedded in the video signal and transmitted in the first pass through which the video signal is transmitted.

In the second mode, the cursor position information is embedded in the video signal and transmitted in the first pass through which the video signal is transmitted, and the OSD signal is embedded in the OSD signal in the second pass Transmission mode.

The third mode is a mode in which the cursor position information and the cursor image information are embedded in the OSD signal and transmitted to the second pass through which the OSD signal is transmitted.

Here, the storage unit 140 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD Or XD memory), RAM, ROM (EEPROM, etc.), and the like.

The multimedia device 100 may reproduce and provide a content file (a moving image file, a still image file, a music file, a document file, an application file, etc.) stored in the storage unit 140 to a user.

FIG. 2 illustrates an embodiment in which the storage unit 140 is provided separately from the controller 170, but the present invention is not limited thereto. The storage unit 140 may be included in the controller 170. FIG.

The user interface unit 150 may transmit a signal input by the user to the control unit 170 or may transmit a signal from the control unit 170 to the user.

For example, the user interface unit 150 may be configured to turn on / off the power, select the channel, and set the screen from the remote control device 200 according to various communication methods such as a radio frequency (RF) communication method and an infrared And the gesture and voice input through the remote control device 200 or may transmit the control signal from the control unit 170 to the remote control device 200. [

Also, for example, the user interface unit 150 may transmit a control signal input from a local key (not shown) such as a power key, a channel key, a volume key, and a set value to the controller 170.

The user interface unit 150 may receive or process a cursor display signal for displaying a cursor on the screen from the remote control device 200 or may transmit the signal to the control unit 170. [

Next, the control unit 170 demultiplexes the input stream or processes the demultiplexed signals through the tuner 110 or the demodulation unit 120 or the external device interface unit 135 to output video or audio output And generate and output a signal for output.

The video signal processed by the controller 170 is input to the display unit 180 and can be displayed as an image corresponding to the video signal.

The video signal processed by the controller 170 may be input to the external output device through the external device interface 135. [

The audio signal processed in the control unit 170 may be output to the audio output unit 185 and the audio signal processed in the control unit 170 may be input to the external output device through the external device interface unit 135 .

In addition, the controller 170 may analyze the image quality of the stored current content, acquire high-quality content by searching for the same content having a higher image quality than the analyzed image quality, and replace the stored current content with the acquired high- .

Here, the controller 170 may extract the EPG information and the image quality information from the current contents when analyzing the image quality of the stored current contents.

In some cases, the controller 170 may transmit the EPG information and the image quality information of the extracted current content to the external server to request the same high-quality content, and receive the same high-quality content from the external server.

When receiving the same high-quality contents from the external server, the controller 170 can download the high-quality contents of the external server.

If the same content of high picture quality is not received from the external server, the control unit 170 receives the online EPG information from another external server, searches for the presence of the same content from the online EPG information, If the broadcast is a high-definition broadcast, the same content of high image quality may be provided from another external server.

Here, when receiving the same high-quality contents from other external servers, the controller 170 can schedule high-quality broadcasts for the same contents according to the broadcast time of the same contents.

In addition, when acquiring the high-definition content, the controller 170 receives the online EPG information from the external server and searches for the presence or absence of the broadcast for the same content from the online EPG information. If the broadcast for the same content is high- High-quality broadcasts for the same contents can be scheduled and recorded in accordance with the broadcast time of the same contents.

Then, when acquiring the high-quality content, the controller 170 can cancel the acquisition of the high-quality content identical to the current content when the stored current content is displayed through the display module.

In addition, when the controller 170 acquires high-quality content by searching for the same content having a higher image quality than the analyzed image quality, the controller 170 may select and acquire only UHD (Ultra High Definition) quality content.

In some cases, when acquiring high-quality content by searching for the same content having a higher image quality than the analyzed image quality, the controller 170 searches for another channel broadcast in the same time zone as the acquisition time of the high-quality content, If high-quality content higher than high-quality content exists, high-quality content of another channel broadcast can be obtained.

In another case, the controller 170 searches for a different channel broadcast at the same time as the content recording time of the current channel broadcast at the time of content recording of the current channel broadcast, and if the same content having higher quality than the current channel broadcast exists , High-quality contents of other channel broadcasts can be obtained.

The control unit 170 may display a message window on whether or not to acquire high-quality content on the display module before acquiring the high-quality content.

Next, the display unit 180 converts the video signal, the data signal, the OSD signal processed by the control unit 170, the video signal and the data signal received from the external device interface unit 135 into R, G, and B signals, respectively And generates a driving signal.

Then, the audio output unit 185 receives a signal processed by the control unit 170, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and outputs it as a voice. The voice output unit 185 may be implemented by various types of speakers.

Next, the power supply unit 190 may supply the corresponding power supply throughout the multimedia device 100. [

The remote control device 200 is a device for transmitting a user input to the user interface unit 150 such as a cursor display input or the like. The remote control device 200 may be Bluetooth, RF (Radio Frequency) communication, infrared (IR) (Ultra Wideband), ZigBee (ZigBee) or the like.

Also, the remote control device 200 may receive the video, audio, or data signal output from the user interface unit 150 and display it on the remote control device 200 or output sound or vibration.

In this way, the multimedia device 100 configured as described above can be used as a fixed digital broadcast of the ATSC system (8-VSB system), digital broadcast of the DVB-T system (COFDM system), digital broadcast of the ISDB- Broadcasting, and the like.

The multimedia device 100 does not include the tuner 110 and the demodulation unit 120 shown in FIG. 2 and transmits the image contents < RTI ID = 0.0 > And reproduce it.

The multimedia device 100 is a video signal processing apparatus that performs signal processing of an image stored in a device or an input image. The multimedia device 100 includes a display unit 180 and an audio output unit 185, A box, a DVD player, a Blu-ray player, a game machine, a computer, and the like.

FIG. 3 is a block diagram showing the control unit shown in FIG. 2 in more detail.

3, the control unit 306 of the multimedia device includes a demultiplexing unit 310, an image processing unit 320, an OSD generating unit 340, a mixer 350, a frame rate converting unit 355, A formatter 360, and the like. It is also within the scope of the present invention to further design a voice processing unit (not shown) and a data processing unit (not shown).

The demultiplexer 310 demultiplexes the input stream. For example, when an MPEG-2 TS is input, it can be demultiplexed into video, audio, and data signals, respectively.

The image processing unit 320 may perform image processing of the demultiplexed image signal. To this end, the image processing unit 320 may include a video decoder 325 and a scaler 335. The video decoder 325 decodes the demultiplexed video signal and the scaler 335 performs scaling so that the resolution of the decoded video signal can be output from the video output unit. The video signal decoded by the video processing unit 320 is input to the mixer 350.

The OSD generation unit 340 generates an OSD signal according to a user input or by itself. Accordingly, the mixer 350 can mix the OSD signal generated by the OSD generating unit 340 and the decoded video signal processed by the image processing unit 320.

The mixed signal is provided to formatter 360. Since the decoded broadcast video signal or the external input signal and the OSD signal are mixed, the OSD can be overlaid on the broadcast image or the external input image.

A frame rate converter (FRC) 355 can convert a frame rate of an input image. For example, a frame rate of 60 Hz is converted to 120 Hz or 240 Hz.

The formatter 360 receives the output signal of the frame rate conversion unit 355, changes the format of the signal to be suitable for the video output unit, and outputs the signal. For example, the R, G, and B data signals may be output as low voltage differential signaling (LVDS) signals or mini-LVDS signals.

Particularly, the following description will be given in connection with the embodiment of the present invention.

An OSD for selecting an electronic device and a function to be controlled by the remote controller according to an embodiment of the present invention is generated by the OSD generation unit 340 described above. The mixer 350 described above is additionally designed to make the general broadcast screen and the OSD overlaid.

4 is a detailed block diagram of a configuration module of a multimedia device according to another embodiment of the present invention. 1 to 3, it is possible to add or change some of the modules of the multimedia apparatus of FIG. 4, and the scope of the present invention is not determined by the elements described in FIGS. 1 to 3, But should be construed in accordance with what is stated in the claims.

4, the multimedia device 400 includes a controller 410, a communication module 420, a storage module 430, a display module 440, and the like.

Here, the communication module 420 may receive predetermined content, and the storage module 430 may store the received content.

At this time, the communication module 420 may be connected to a plurality of external servers such as the first external server 510 and the second external server 520 to receive high-quality contents from them, And EPG information and picture quality information for the EPG information.

Then, the display module 440 displays the content, and the controller 410 can control the operation of the multimedia device.

Here, the controller 410 may analyze the image quality of the stored current content, acquire high-quality content by searching for the same content having a higher image quality than the analyzed image quality, and replace the stored current content with the acquired high-quality content .

At this time, the controller 410 can extract the EPG information and the image quality information from the current contents when analyzing the image quality of the stored current contents.

The controller 410 transmits the EPG information and the image quality information of the extracted current content to the first external server 510 to request the same content of high image quality and receives the same high quality of the same content from the first external server 510 Content may be provided.

Here, the controller 410 may download the high-definition content of the first external server 510 when receiving the same high-quality content from the first external server 510. [

If the same content of high picture quality is not received from the first external server 510, the controller 410 receives the online EPG information from the second external server 520, If the broadcast for the same content is a high-definition broadcast, the second external server 520 may receive the same high-quality content.

Here, when receiving the same high-quality content from the second external server 520, the controller 410 can schedule the high-quality broadcast for the same content according to the broadcast time of the same content.

Alternatively, the controller 410 receives the online EPG information from the external server when acquiring the high-definition content, searches for the presence or absence of the broadcast for the same content from the online EPG information, , High-quality broadcasts for the same contents can be scheduled to be recorded in accordance with the broadcast time of the same contents.

Here, when acquiring the high-quality content, the controller 410 can cancel the acquisition of the same high-quality content as the current content when the stored current content is displayed through the display module 440. [

This is because the user can not acquire and replace the high-definition content because the user is viewing the content.

In some cases, when the controller 410 searches for the same content having a higher image quality than the analyzed image quality and acquires the high-quality content, the controller 410 selects the content of the UHD (Ultra High Definition) It is possible.

In another case, the user may select the image quality of the content and change the setting of the image quality to be replaced.

In addition, when acquiring high-quality content by searching for the same content having a higher image quality than the analyzed image quality, the controller 410 searches for another channel broadcast in the same time zone as the acquisition time of the high-quality content, If higher-quality contents are present, higher-quality contents of other channel broadcasts can be obtained.

In another case, the controller 410 searches for a different channel broadcast at the same time as the content recording time of the current channel broadcast at the time of content recording of the current channel broadcast, and if the same content having higher quality than the current channel broadcast exists , And obtain high-quality contents of other channel broadcasts.

Here, the high definition content to be acquired may be UHD (Ultra High Definition) quality content, but is not limited thereto.

The controller 410 may display a message window on whether to acquire high-quality content on the display module 440 before acquiring the high-quality content.

The reason is that the user may not want to replace with high-quality content, so that the intention of the user can be clearly grasped through the replacement confirmation message.

FIG. 5 is a view for explaining a process of acquiring high-quality contents of a multimedia device according to an embodiment of the present invention, and FIG. 6 is a view illustrating an example of online EPG information of FIG.

As shown in FIGS. 5 and 6, first, the multimedia device 100 records the content of the current channel broadcast received at the request of the user, analyzes the quality of the recorded content when the recording of the content ends can do.

That is, the multimedia device 100 can extract and analyze EPG and image quality information from the recorded contents.

In some cases, the multimedia device 100 collects the online EPG information 710 from the outside, analyzes the image quality information of the recorded content, and transmits the same content having a higher image quality than the analyzed image quality to the DSP server 720 to obtain high-quality contents.

Here, the online EPG information 610 may include content information 620 and image quality information 630 thereof.

At this time, the image quality information 630 may include at least one of SD class, HD class, and UHD class.

If the currently recorded content 730 is an HD image, the multimedia device 100 can replace the UHD image, which is the high-definition content 740, with the recorded content.

As described above, the present invention can analyze the image quality of the recorded content, replace it with the same content having higher image quality than the recorded content, and provide the same to the user.

In addition, since the automatically recorded content is changed to high-quality content, the present invention can provide convenience to the user.

Further, the present invention can cope with a rapidly changing broadcasting environment and a rising broadcast image quality, and can change consumers' perception of high-quality multimedia devices.

7 to 11 are flowcharts for explaining a method for providing high-quality contents of a multimedia apparatus according to the present invention.

7 to 11, the multimedia apparatus of the present invention first records the content of the current channel broadcast received (S11)

As shown in FIG. 8, the multimedia device receives a recording request signal for a content of a current channel broadcast from a user when recording the content of the current channel broadcast, and when receiving a recording request signal, (S113). [0051] In step S113,

Then, the multimedia device confirms presence of the same content with a higher image quality than the current channel broadcast image (S115). If the same content of high image quality exists, the multimedia device records the high image quality content of the other channel broadcast (S117) The content of the current channel broadcast is recorded (S119)

Then, the multimedia apparatus confirms whether or not the recording of the content is finished (S13)

If the recording is ended, the image quality of the recorded content is analyzed. If the recording is not ended (S15), the current channel broadcasting content is continuously recorded.

Here, when analyzing the image quality of the recorded content, the multimedia device can extract and analyze the EPG and the image quality information from the recorded content.

Next, the multimedia apparatus searches for the same content having a higher image quality than the analyzed image quality (S17), and acquires the high-quality content if the same content having higher image quality exists (S19).

9, the multimedia device retrieves the same content having a higher image quality than the analyzed image quality, extracts the EPG and the image quality information from the recorded content when acquiring the high-quality content, extracts the extracted EPG and image quality information (S171) And transmits the EPG and picture quality information to the external server (S173)

The multimedia device requests presence or absence of the same image with higher image quality than the image quality of the content recorded in the external server and receives a response to the presence of the same content of high image quality from the external server, (S175)

If it is determined that the same high-quality content exists, the multimedia device downloads the high-quality content from the external server (S177). If the same content does not exist in the high-quality multimedia device, the multimedia device can be terminated.

10, the multimedia device can receive online EPG information from another external server if the same content of high quality is not present as a result of the checking (S179). However,

Then, the multimedia apparatus searches for the same broadcast for the recorded contents from the online EPG information (S181), and confirms whether the same broadcast is present for the recorded contents (S183)

If it is determined that the same broadcast exists, the multimedia apparatus confirms whether the same broadcast is higher-quality broadcast than the broadcast for the recorded content (S185). If the same broadcast does not exist, the multimedia apparatus ends the process.

Next, if the multimedia device determines that the broadcast is a higher quality broadcast, the multimedia device sets the high-quality broadcast for the same content in accordance with the high-definition broadcast time (S187). If not, Repeat the searching step.

Then, when the reserved recording time comes, the multimedia apparatus records the high-definition broadcast to acquire the high-quality content (S191)

As shown in FIG. 11, the multimedia device confirms whether the recorded content is displayed on the screen of the multimedia device when the scheduled recording time comes when acquiring the high-quality content.

If the recorded content is displayed, the multimedia device cancels the recording of the high-definition broadcast having the reserved recording, and if the recorded content is not displayed, the multimedia device can record the high-definition broadcast set by the reserved recording to acquire the high-quality content.

Next, the multimedia device replaces the recorded content with the acquired high-definition content (S21)

Here, when acquiring high-quality content, the multimedia device may display a message window for acquiring high-quality content on the screen of the multimedia device before acquiring high-quality content.

12 is a view showing a message window displayed on the screen of the multimedia device.

As shown in FIG. 12, the multimedia device may display a message window on whether to acquire high-quality content before acquiring high-quality content on a screen of the multimedia device.

For example, by asking the user through a message window whether to replace the SD image with the UHD image, the user can easily provide the convenience to the user by confirming the intention to change the image to high image quality.

This is because the user may not want a high-quality image.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

400: Multimedia device
410: controller
420: Communication module
430: Storage module
440: Display module

Claims

In a multimedia device,
A communication module for receiving content;
A storage module for storing the received content;
A display module for displaying the contents; And
And a controller for controlling the operation of the multimedia device,
The controller comprising:
Wherein the analyzing unit analyzes the image quality of the stored current content, acquires high-quality content by searching for the same content having a higher image quality than the analyzed image quality, and replaces the stored current content with the acquired high- .

The multimedia device of claim 1, wherein the controller extracts EPG information and image quality information from current contents when analyzing the image quality of the stored current contents.

3. The apparatus of claim 2, wherein the controller transmits the EPG information and the image quality information of the extracted current content to an external server, requests the same content of high quality, and receives the same high-quality content from the external server Lt; / RTI >

The multimedia device of claim 3, wherein the controller downloads high-quality contents of the external server when receiving the same high-quality contents from the external server.

4. The apparatus of claim 3, wherein the controller receives online EPG information from another external server when the same content of high image quality is not received from the external server, searches for the presence of the same content from the online EPG information And if the broadcast of the same content is a high-definition broadcast, the same content of high image quality is received from the other external server.

6. The apparatus of claim 5, wherein the controller is configured to schedule the high-definition broadcast for the same content in accordance with the broadcast time of the same content when receiving the same high-quality content from the other external server Multimedia device.

The apparatus of claim 1, wherein the controller is configured to receive online EPG information from an external server when acquiring the high-definition content, to search for presence of a broadcast for the same content from the online EPG information, Wherein the high-definition broadcast is a high-definition broadcast, the high-definition broadcast corresponding to the same content is scheduled to be recorded in accordance with the broadcast time of the same content.

2. The multimedia device according to claim 1, wherein, when acquiring the high-definition content, the controller cancels the acquisition of the high-quality content identical to the current content when the stored current content is displayed through the display module .

The apparatus of claim 1, wherein the controller is configured to select and acquire only UHD (Ultra High Definition) quality content when acquiring high quality content by searching for the same content having a higher image quality than the analyzed image quality Lt; / RTI >

The method of claim 1, wherein the controller searches for a different channel broadcast in the same time zone as the acquisition time of the high-quality content when searching for the same content having a higher image quality than the analyzed image quality and obtaining high- And acquires high-quality contents of the other channel broadcasting if high-quality contents higher than the high-quality contents to be acquired exist.

The apparatus of claim 1, wherein the controller searches for a different channel broadcast at the same time as a content recording time of the current channel broadcast at the time of content recording of the current channel broadcast, The high-quality content of the other channel broadcast is acquired.

12. The multimedia device of claim 11, wherein the high definition content is a UHD (Ultra High Definition) quality content.

The multimedia device as claimed in claim 1, wherein the controller displays a message window on whether the high-definition content is acquired or not, on the display module, before acquiring the high-definition content.

A method for providing high-quality contents of a multimedia device,
Recording the content of the current channel broadcast being received;
Analyzing the quality of the recorded content when the recording of the content is terminated;
Retrieving the same content having a higher image quality than the image quality of the analyzed content to obtain high-quality content; And,
And replacing the recorded content with the acquired high-definition content. &Lt; Desc / Clms Page number 19 >

15. The method of claim 14, wherein the step of recording the content of the current channel broadcast includes:
Searching for another channel broadcast in the same time zone as the content recording time of the current channel broadcast;
Confirming presence or absence of the same content of higher quality than the content of the current channel broadcasting;
And recording the content of the current channel broadcast if the same content of high quality is present, if the high-quality identical content does not exist, and recording the content of the received current channel broadcast A method for providing high quality content of a device.

15. The method of claim 14, wherein analyzing the quality of the recorded content comprises:
And extracting EPG and image quality information from the recorded content and analyzing the extracted EPG and image quality information.

15. The method as claimed in claim 14, wherein the step of retrieving the same content having a higher image quality than the image quality of the analyzed content to obtain high-
Extracting EPG and image quality information from the recorded content, and transmitting the extracted EPG and image quality information to an external server;
Requesting the external server to determine whether the same content having higher image quality than the image quality of the recorded content exists;
Receiving, by the external server, a response to the presence or absence of the same content having the high image quality and confirming whether the external server has high-quality contents;
Wherein the downloading of the high-definition content from the external server is performed when the same content of the high definition is present.

18. The method of claim 17, further comprising: receiving online EPG information from another external server if the same content of high quality is not present as a result of the searching, searching for the same broadcast of the recorded content from the online EPG information;
Checking whether there is the same broadcast for the recorded content;
If it is determined that the same broadcast exists, confirming whether the same broadcast is a higher-quality broadcast than the broadcast of the recorded content;
Setting a scheduled recording of the high-quality broadcast for the same content in accordance with the high-definition broadcast time if the high-quality broadcast is determined;
Further comprising the step of recording the high-definition broadcast to acquire the high-definition content when the reserved recording time arrives.

19. The method of claim 18, wherein obtaining the high-
Confirming whether the recorded content is displayed on the screen of the multimedia device when the reserved recording time comes;
And canceling the recording of the high-definition broadcast when the recorded content is displayed, and if the recorded content is not displayed, recording the high-definition broadcast set by the reserved recording to obtain the high-quality content Wherein the high-definition content is provided by a multimedia device.

15. The method of claim 14, wherein obtaining the high-
And displaying a message window on whether to acquire the high-definition content on the screen of the multimedia device before acquiring the high-definition content.