KR101596959B1 - Operaing method of display device storing broadcasting program and broadcasting receiver enabling of the method - Google Patents

Abstract

A method of operating a display device for recording a broadcast program according to an exemplary embodiment of the present invention includes: receiving and storing an externally provided broadcast program; Confirming the video format of the broadcast program by checking the additional information corresponding to the broadcast program; Generating a representative thumbnail image of the stored broadcast program based on the identified video format; And storing the generated representative thumbnail image.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of operating a display device for recording a broadcast program, and a display device using the method.

The present invention relates to a method of operating a display device for recording a broadcast program and a display device employing the method. More particularly, the present invention relates to a method of operating a display device, such as a representative thumbnail image And a display device employing the method.

Nowadays, the development of a display device having a PVR (Personal Video Recorder) function for recording and storing a broadcast program after receiving the broadcast program is accelerating, and as the capacity of the recording is increased, the need for the user to search for a recording is also increasing.

Accordingly, in the conventional display device, a progress bar corresponding to the progress of a recording is output to enable a user to search for a recording.

However, there is a problem in that it is not easy to search for recordings using only the progress bar, and thus it is urgently required to develop a display device that allows the user to search the recordings more conveniently.

Particularly, in a display device using a time shift function, a user often tries to find a recorded content by searching for a recorded content with a time shift function. However, the display device of the related art does not reflect such a demand of users have.

Accordingly, there is a need to provide a display device that employs a time shift function to enable a user to more easily recognize the contents of a broadcast program recorded by the user.

The present invention has been made to solve the above problems and it is an object of the present invention to provide a method of operating a display device that allows a user to easily know when a broadcast information is changed and a broadcast program corresponding to the changed broadcast information, And a display device employing the method.

In addition, the present invention provides a representative thumbnail image of a broadcast program whose broadcast information has been changed during the recording of a broadcast program, thereby extracting and outputting a thumbnail image at a predetermined time interval in a broadcast program, And to provide a display device employing the method of operating the display device to improve user convenience.

In addition, the present invention provides a display device capable of easily viewing a 2D broadcast program and a 3D broadcast program by providing a representative thumbnail image of the broadcast program whose broadcast information is changed during the broadcast program recording according to the format of the broadcast program And a display device employing the method.

In addition, the present invention provides a method of operating a display device and a display device employing the method, in which a program representative thumbnail is output in various ways so that a user can more conveniently and variously understand a broadcast program in which broadcast information is changed during recording The purpose of that is to do.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise forms disclosed. .

A method of operating a display device for recording a broadcast program according to an exemplary embodiment of the present invention includes: receiving and storing an externally provided broadcast program; Confirming the video format of the broadcast program by checking the additional information corresponding to the broadcast program; Generating a representative thumbnail image of the stored broadcast program based on the identified video format; And storing the generated representative thumbnail image.

According to another aspect of the present invention, there is provided a method of operating a display device for recording a broadcast program, the method comprising: storing a first broadcast program received and extracting a first thumbnail image from the first broadcast program; Storing the changed second broadcast program and extracting a second thumbnail image from the second broadcast program as the received broadcast program is changed; Generating a representative thumbnail for the second broadcast program based on the changed additional information of the second broadcast program; And outputting the first thumbnail image, the second thumbnail image, and the representative thumbnail image.

Further, a display device for recording a broadcast program according to an embodiment of the present invention includes: a receiver for receiving a broadcast program provided from the outside; A storage unit for storing a broadcast program received by the receiver; A thumbnail image generation unit for generating a representative thumbnail image corresponding to the video format of the broadcast program based on the additional information of the received broadcast program and storing the generated thumbnail image in the storage unit; A control unit for confirming a video format of the broadcast program based on the additional information of the received broadcast program and generating a representative thumbnail image corresponding to the identified video format and outputting the representative thumbnail image; And a display unit for displaying the representative thumbnail image.

According to the embodiment of the present invention, it is possible to provide a service that visually displays information about 3D broadcasting at a time when 3D broadcasting is commercialized so that it can easily recognize whether or not the stored program is 3D video, It is possible to maximize convenience.

An embodiment according to the present invention will be described.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It should be understood, however, that there is no intention to limit the scope of the present invention to the embodiment shown, and other embodiments which are degenerative by adding, changing or deleting other elements or other embodiments falling within the spirit of the present invention Can be proposed.

Although the term used in the present invention is a general term that is widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, since the meaning is described in detail in the description of the corresponding invention, It is to be understood that the present invention should be grasped as a meaning of a non-term.

That is, in the following description, the word 'comprising' does not exclude the presence of other elements or steps than those listed.

1 is a block diagram of a display apparatus for recording a broadcast program according to an embodiment of the present invention.

1, a display apparatus according to an exemplary embodiment of the present invention includes a receiving unit 100, an image processing unit 110, a display unit 120, an instruction receiving unit 130, a storage unit 140, (150) and a controller (160).

The receiving unit 100 receives a broadcast program of a channel selected by a user from among the broadcast programs provided from the outside.

That is, in general, a digital broadcast signal is transmitted in the form of a transport stream in which the video signal, the audio signal, and the additional data are time-division-multiplexed and packetized.

The receiving unit 100 receives a broadcast signal transmitted from the outside through an antenna and includes a tuner for tuning a broadcast signal having a frequency band corresponding to a tuning control signal of a controller 160 to be described later, A demodulator for outputting a broadcast signal of a channel through a VSB (Vestigial Sideband) demodulation process and an error correction process in the form of a transport stream, and a demodulator for separating the received broadcast signal into a video signal, an audio signal, And a demultiplexer for outputting the demultiplexed data.

Here, the additional data includes information related to a broadcast program, such as Program and System Information Protocol (PSIP) information of an Advanced Television Systems Committee (ATSC) system, SI (System Information) information of a DVB (Digital Video Broadcasting) can do.

The video data output through the receiving unit 100 is processed by the image processing unit 110 and displayed on the display unit 120.

The image processing unit 110 includes an MPEG-2 decoder and a scaler for converting the video data to a vertical frequency, a resolution, an aspect ratio, and the like, according to an output standard of the display unit 120.

The display unit 120 may be applied to various types of display modules such as a digital light processing (DLP), a liquid crystal display (LCD), and a plasma display panel (PDP).

Also, the audio signal is processed by a voice processing unit (not shown) and outputted to a speaker, and the voice processing unit may include an AC-3 decoder.

The command receiving unit 130 receives a command input from the user. That is, the command receiving unit 130 receives the request command input from the user and transmits the request command to the controller 160 to be described later. Here, the command receiving unit 130 may be an infrared receiving unit for receiving an infrared signal inputted through a remote controller (not shown).

The storage unit 140 stores the broadcast program received by the receiving unit 100. [ At this time, the storing operation may include both scheduled recording, immediate recording, and time-shifting performed at a time set by the user. The storage unit 140 may be a hard disk drive (HDD), which is a mass storage medium.

The thumbnail image extracting unit 150 extracts a thumbnail image of a broadcast program stored in the storage unit 140. Here, the thumbnail image may be a still image extracted from the broadcast program, or may be a representative thumbnail image extracted based on additional information of the broadcast program.

Here, the representative thumbnail image is generated based on the additional information of the broadcast program, and substantially the supplementary information is information indicating the video format of the broadcast program.

Accordingly, the representative thumbnail image is an image generated according to the image format information of the broadcast program, and the still image is an image extracted from the received broadcast program.

As a result, the thumbnail image is an image generated by extracting an image of the broadcast program at predetermined time intervals after reading the received broadcast program. In addition, the representative thumbnail image may be a specific thumbnail image of the generated thumbnail image, or may be a separately generated thumbnail image.

The controller 160 controls the overall operation of the display device.

In particular, the control unit 160 controls the storage unit 140 to store a broadcast program received through the receiver 100 according to a user command transmitted through the command receiver 130, Thereby generating a thumbnail image and a representative thumbnail image for the program, respectively.

That is, when a broadcast program is stored, a thumbnail image of the broadcast program to be stored is extracted and stored in order to easily search for the playback position when the stored broadcast program is reproduced. In addition, when the stored broadcast program is changed, a thumbnail image informing the change of the program is additionally generated and stored in the corresponding position.

However, in the present invention, in addition to the general thumbnail image generated as described above, a representative thumbnail image representative of the recorded broadcast program is additionally generated and stored. In addition, the additional representative thumbnail image is created corresponding to the format information of the broadcast program, so that the user can confirm the format information of the stored broadcast program based on the representative thumbnail image.

In other words, the controller 160 confirms whether the received broadcast program is a 2D format video or a 3D format video by checking the supplementary information corresponding to the received broadcast program.

In addition, when the video format of the received broadcast program is confirmed, the controller 160 generates a representative thumbnail image of the broadcast program corresponding to the identified video format.

In this case, for example, the representative thumbnail image may be generated by inserting only a 2D or 3D phrase into one of the thumbnail images generated for each of the time zones.

In addition, the controller 160 controls the generated representative thumbnail image to be displayed on the recording progress bar or the recording list.

Hereinafter, a method of operating a display device for recording a broadcast program according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a flowchart illustrating a method of operating a display device for recording a broadcast program according to an exemplary embodiment of the present invention.

2, when the time shift command is inputted through the command receiver 130 in step 200, the control unit 160 determines whether the time shift command is input through the receiver 100, Is stored in the storage unit 140 (step 210).

That is, the control unit 160 may store the first broadcast program received through the receiver 100 in the storage unit 140 in response to a time shift command input from the user. The storage unit 140 includes all means that can be included in the display device and can store predetermined data.

The thumbnail image extracting unit 150 sequentially extracts first thumbnail images from the first broadcast program stored in the storage unit 140 (step 220).

At this time, the thumbnail image extracting unit 150 sequentially extracts a first thumbnail image from the received first broadcast program at a predetermined time interval, and the first thumbnail image is generated in various sizes according to the embodiment .

In step 230, the controller 160 periodically determines whether the received broadcast program is changed during the generation of the first thumbnail image. That is, the control unit 160 receives a channel switching command from the user, changes the broadcast program received through the receiver 100, or terminates the first broadcast program according to the elapsed broadcast time, .

Here, the control unit 160 may determine whether the broadcast program has been changed based on the supplementary information data separated from the broadcast signal received through the receiver 100.

If the received broadcast program is changed, the controller 160 receives the changed second broadcast program through the receiver 100 and stores the received second broadcast program in the storage unit 140 (operation 240).

In addition, the thumbnail image extracting unit 150 sequentially extracts a second thumbnail image from the received second broadcast program and stores the extracted second thumbnail image in the storage unit 140 (operation 250).

The controller 160 checks the additional information about the second broadcast program and confirms the video format information of the second broadcast program. That is, the controller 160 determines whether the second broadcast program is a 2D-format broadcast program or a 3D-format broadcast program.

If the image format information of the second broadcast program is confirmed, the control unit 160 generates a representative thumbnail image for the second broadcast program based on the confirmed image format information (operation 260). Accordingly, the thumbnail image extracting unit 150 generates a representative thumbnail image corresponding to the image format information of the second broadcast program, and stores the representative thumbnail image in the storage unit 140. [

In this case, when the broadcast program is changed, a representative thumbnail image corresponding to the video format of the broadcast program is generated. However, the representative thumbnail image may be generated only in a specific case.

That is, the control unit 160 may generate a representative thumbnail image of the corresponding broadcast program only when the received broadcast program is a broadcast program corresponding to the 3D format.

Also, the control unit 160 may generate the representative thumbnail image only when the image format of the previously received broadcast program is different from the image format of the currently received broadcast program.

Here, the representative thumbnail image is an image generated so that the user can easily identify the converted broadcast program, and the generated thumbnail image may include a phrase corresponding to the format information of the broadcast program according to the embodiment.

In addition, the representative thumbnail image may be generated in a 2D format when the corresponding broadcast program is a 2D format, or in a 3D format if the broadcast program is a 3D format.

In addition, although the representative thumbnail image for the first program is not described above, when the initial time shift command is input, the representative thumbnail image for the received first program may be generated and stored.

The controller 160 controls the display unit 120 to output the generated first thumbnail image, second thumbnail image, and representative thumbnail image in operation 270.

Here, the representative thumbnail image output through the display unit 120 may be included in a recording progress bar indicating a recording progress of the program, or may be included in a recording list showing a list of recorded programs.

Hereinafter, the manner in which the thumbnail image is displayed will be described in detail.

3 is a diagram illustrating first and second thumbnail images generated by an embodiment of the present invention.

Referring to FIG. 3, the thumbnail image extracting unit 150 sequentially extracts a first thumbnail image 310 from the stored first broadcast program. Here, the first thumbnail image 310 includes a plurality of thumbnail images 312, 314, 316, and 318 generated at regular intervals.

At this time, when the first broadcast program is terminated or the broadcast program received according to the channel change command is changed, the thumbnail image extracting unit 150 sequentially extracts the second thumbnail image 320 from the changed second broadcast program do. Here, the second thumbnail image 310 includes a plurality of thumbnail images 322, 324, 326, and 328 generated at regular intervals.

4 is a diagram illustrating an example of a representative thumbnail generated according to an embodiment of the present invention.

Referring to FIG. 4, when the received broadcast program is changed to a second broadcast program, the thumbnail image extracting unit 150 generates a representative thumbnail image 400 representative of the second broadcast program. The representative thumbnail image 400 is an image for informing whether the video format of the second broadcast program is a 2D format or a 3D format. The representative thumbnail image 400 includes a text 410).

Here, the representative thumbnail image 400 may be separately generated as shown in FIG. 4, and only the phrase 410 may be added to any one of the second thumbnail images extracted from the second broadcast program, .

FIG. 5 is a view showing a recording progress bar provided by an embodiment of the present invention. FIG.

 5, the controller 160 displays a first thumbnail image 500 extracted from the first broadcast program, a second thumbnail image 510 extracted from the second broadcast program, and a representative thumbnail image 510 of the second broadcast program, Image 530 is output. At this time, the first and second thumbnail images and representative thumbnail images may be included in the recording progress bar and output.

For example, when the user selects the time shift command and then watches the first broadcast program, if the viewing program is changed to the second broadcast program, the controller 160 displays a representative thumbnail indicating the video format of the second broadcast program After the image is generated, it can be output.

Similarly, if the viewing program is changed to the third broadcasting program while viewing the second broadcasting program, the controller 160 controls the third thumbnail image 520 of the third broadcasting program and the representative thumbnail image 520 of the third broadcasting program, (540).

Here, when the video format of the third broadcast program is the 2D format, only the third thumbnail image of the third broadcast program may be displayed, and the representative thumbnail image of the third broadcast program may not be displayed. That is, the representative thumbnail image may be generated and output only for a broadcast program corresponding to the 3D image format.

In addition, the output representative thumbnail image may be displayed so as to be distinguished from the first, second, and third thumbnail images.

 For example, the representative thumbnail image may be larger in size than the first, second, and third thumbnail images, may be output with a border, be different in border color, or may include a separate text phrase, Can be displayed to distinguish.

FIG. 6 is a view illustrating a recording list formed according to an embodiment of the present invention.

Referring to FIG. 6, the controller 160 outputs a representative thumbnail image together with recording information (recording time, recorded duration) of each broadcast program and outputs a representative thumbnail image when a list of recorded broadcast programs is output using the time shift function, The user can easily recognize whether the recorded broadcast program is a 2D format image or a 3D format image.

As described above, according to the embodiment of the present invention, it is possible to provide a service for visually displaying information about 3D broadcasting at the time when 3D broadcasting is commercialized so that it can easily recognize whether or not the stored program is 3D video , Thereby maximizing the user's convenience.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a display apparatus for recording a broadcast program according to an embodiment of the present invention; FIG.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a method and apparatus for recording a broadcast program.

3 is a diagram illustrating first and second thumbnail images generated by an embodiment of the present invention.

4 is a view showing an example of a representative thumbnail generated by an embodiment of the present invention;

5 illustrates a recording progress bar provided by an embodiment of the present invention.

FIG. 6 illustrates a recording list formed by an embodiment of the present invention; FIG.

Claims (15)

Receiving a broadcast program provided from the outside; Determining whether the received broadcast program is changed; And generating a first thumbnail image of the changed broadcast program when the received broadcast program is changed, and determining whether the changed image format of the broadcast program is a 2D format or a 3D format using the additional information corresponding to the changed broadcast program ; If the video format of the previously received broadcast program differs from the video format of the changed broadcast program based on the identified video format, the representative thumbnail image of the changed broadcast program is converted into a video format the same as the video format of the changed broadcast program ; Storing the first thumbnail image and the representative thumbnail image; And Displaying the thumbnail image of the previously received broadcast program and the first thumbnail image and inserting and displaying the representative thumbnail image between the thumbnail image of the previously received broadcast program and the first thumbnail image and, The representative thumbnail image may include: An image for allowing the user to identify a change in the received broadcast program, and an image generated separately from the first thumbnail image A method of operating a display device for recording a broadcast program. delete The method according to claim 1, The representative thumbnail image may include: When the received broadcast program is changed, is generated based on the added information of the changed broadcast program A method of operating a display device for recording a broadcast program. The method according to claim 1, The representative thumbnail image may include: Wherein the generated program is generated when the video format of the changed broadcast program is a 3D format. delete The method according to claim 1, The representative thumbnail image may include: And is included in the recording progress bar informing the progress of the recording. A method of operating a display device for recording a broadcast program. delete Storing a received first broadcast program and extracting a first thumbnail image from the first broadcast program; Determining whether a received broadcast program is changed from the first broadcast program to a second broadcast program; Storing the second broadcast program as the received broadcast program changes from the first broadcast program to the second broadcast program and extracting a second thumbnail image from the second broadcast program; And determining whether the video format of the second broadcast program is a 2D format or a 3D format based on the additional information of the second broadcast program, Generating a representative thumbnail image for the second broadcast program in the same video format as the video format of the second broadcast program when the video format of the broadcast program is different; And Displaying the first thumbnail image and the second thumbnail image and inserting and displaying the representative thumbnail image between the first thumbnail image and the second thumbnail image, The representative thumbnail image may include: An image for allowing a user to identify a change in the received broadcast program, and an image generated separately from the second thumbnail image A method of operating a display device for recording a broadcast program. delete delete 9. The method of claim 8, The representative thumbnail image may include: The first thumbnail image and the second thumbnail image are displayed so as to be distinguished from each other A method of operating a display device for recording a broadcast program. A receiving unit for receiving a broadcast program provided from the outside; A storage unit for storing a broadcast program received by the receiver; The method comprising the steps of: determining whether the received broadcast program is changed; generating a first thumbnail image of the changed broadcast program when the received broadcast program is changed; storing the first thumbnail image in the storage unit; If the video format of the changed broadcast program is different from the video format of the previously received broadcast program, the control unit determines whether the changed thumbnail image of the changed broadcast program is a 2D format or a 3D format, A thumbnail image generation unit for generating the thumbnail image in the same video format as the video format of the broadcast program and storing the same in the storage unit; A display unit for displaying an image; And Displaying the thumbnail image of the previously received broadcast program and the first thumbnail image, inserting the representative thumbnail image between the thumbnail image of the previously received broadcast program and the first thumbnail image, and displaying the thumbnail image, And a control unit for controlling the control unit, The representative thumbnail image may include: An image for allowing the user to identify a change in the received broadcast program, and an image generated separately from the first thumbnail image A display device for recording a broadcast program. delete 13. The method of claim 12, Wherein, And controls the generation of the representative thumbnail image when the changed image format of the broadcast program is a 3D format. The method according to claim 1, The first thumbnail image may include: And an image of one or more images generated by periodically extracting the image of the changed broadcast program A method of operating a display device for recording a broadcast program.

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