KR20080078174A - Recording method and device - Google Patents

Abstract

The present invention relates to an apparatus and method for reproducing a recorded matter. The apparatus for reproducing a recorded matter according to the present invention uses a thumbnail extractor for extracting a thumbnail from image data, a storage unit for storing the image data and the extracted thumbnail, and the stored thumbnail. And an OSD unit for implementing a recording list screen displaying one or more thumbnails for each of the stored image data, and a controller for extracting thumbnails from the image data and controlling to implement the recording list screen.

Therefore, according to the present invention, there is an effect that the user can conveniently search for and play back the video to be watched.

Description

Recording method and device {Video playing method and player}

1 is a block diagram schematically showing the configuration of an apparatus for recording recordings according to an embodiment of the present invention;

2 is a diagram illustrating a menu including confirmation of a recording list according to an embodiment of the present invention.

3 is a diagram illustrating a recording list screen using a thumbnail as an embodiment according to the present invention.

4 is a diagram illustrating a screen for editing a playlist using a thumbnail as an embodiment according to the present invention.

5 is a diagram illustrating a menu for registering a playlist as an embodiment according to the present invention.

6 is a diagram illustrating a progress bar indicating a playback situation as an embodiment of the present invention.

7 is a diagram illustrating a screen on which a progress bar is implemented according to an embodiment of the present invention.

8 is a flowchart illustrating a process of editing a playlist using a thumbnail as an embodiment according to the present invention.

* Explanation of symbols for the main parts of the drawings

100: tuner 102: demodulator

104: demultiplexer 106: program information decoder

108: program information database 110: control unit

112: A / V decoder 114: thumbnail extracting unit

116: storage unit 118: OSD unit

120: display unit

The present invention relates to a method and an apparatus for reproducing a recording, and more particularly, to a method and an apparatus for reproducing a recording using a thumbnail.

There are many types of recorders that can record and play back images. In general, PVR (Personal Video Recorder) is different from VCR (Video Cassette Recorder) which stores video signal on magnetic tape. A digital recording and reproducing apparatus for recording and reproducing image data on a medium.

Digital recording and playback devices such as PVRs store and reproduce digital video signals. Therefore, by using the properties of the digital image, it is possible to provide various trick play functions such as time-shift and instant replay during live broadcast as well as recording and playback functions.

In addition, with the development of storage technology, the capacity of the storage medium has increased greatly, and the amount of images that can be recorded has also increased greatly.

As the amount of images that can be recorded increases as described above, simply listing a list of recorded images makes it difficult for a user to find and play an image to be watched among the images stored in the storage medium.

Accordingly, there is a need for a function of improving access to a vast amount of digital image data stored in the storage medium and allowing a user to distinguish a large number of images stored in the storage medium.

There is also a need for a function of searching for a desired image among the images stored in the storage medium and reproducing a desired portion.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a method and apparatus for playing a recording using a thumbnail, so that a user can conveniently select and play a desired image.

According to an aspect of the present invention, there is provided a recording apparatus for reproducing a thumbnail, a thumbnail extracting unit for extracting a thumbnail from image data, a storage unit for storing the image data and the extracted thumbnail, and the stored thumbnail using the stored thumbnail. And an OSD unit for implementing a recording list screen displaying one or more thumbnails for each image data, and a controller for extracting thumbnails from the image data and controlling the recording list screen.

According to an embodiment of the present invention, a method of reproducing a recording includes extracting a thumbnail from image data and storing the thumbnail along with the image data, and displaying a recording list screen displaying one or more thumbnails for each of the stored image data using the thumbnail. Editing a playlist using a thumbnail displayed on the recording list screen, and displaying image data stored on the screen according to the edited playlist.

Other objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

In addition, the terms used in the present invention was selected as a general term widely used as possible now, but in certain cases, the term is arbitrarily selected by the applicant, in which case the meaning is described in detail in the corresponding description of the invention, It is to be clear that the present invention is to be understood as the meaning of terms rather than names.

Referring to the accompanying drawings, the operation of the recording apparatus and method according to the present invention configured as described above will be described in detail as follows.

1 is a block diagram schematically showing the configuration of a recording / playback apparatus according to an embodiment of the present invention.

The playback apparatus includes a tuner 100, a demodulator 102, a demultiplexer 104, a program information decoder 106, a program information database 108, a controller 110, an A / V decoder 112, a thumb And a nail extracting unit 114, a storage unit 116, an OSD unit 118, a display unit 120, and a memory 122.

The tuner 100 receives a broadcast signal of a specific channel and transmits the received broadcast signal to the demodulator 102. The demodulator 102 demodulates the received broadcast signal to obtain a Moving Picture Experts Group (MPEG) stream.

The demodulator 102 transmits the stream to the demultiplexer 104.

The demultiplexer 104 demultiplexes the stream under the control of the controller 110 and transmits the demultiplexed data to an appropriate decoder. The demultiplexer 104 transmits audio and video data among the demultiplexed data to the A / V decoder 112 and transmits data about program information to the program information decoder 106.

The data related to the program information may include program specific information (PSI) information data, program and system information protocol (PSIP) information data of Advanced Television Systems commettee (ATSC), service information (SI) information data of digital video broadcasting (DVB), and the like. There is this.

The program information database 108 stores and manages program information parsed by the program information decoder 106. The stored program information may be used to inform the user of various information of the program.

The A / V decoder 112 decodes audio and video data received from the demultiplexer 104. The audio data decoded by the A / V decoder 112 is provided to the user through a speaker (not shown), and the video data is provided to the user through the display unit 120.

The controller 110 controls the storage unit 116 to store the program requested by the user among the received programs. The storage unit 116 uses a storage medium such as an HDD. The memory 122 stores data necessary for various controls.

A thumbnail extractor 114 extracts a thumbnail in a reduced form from the original image from the video data decoded by the A / V decoder 112.

That is, the thumbnail extractor 114 extracts a thumbnail from video data of a program in which a user inputs a storage command under the control of the controller 110.

There are various ways of extracting the thumbnail. For example, there is a method of periodically detecting thumbnails at a predetermined time interval with respect to a specific pixel type (I picture, etc.) in the video data, or detecting a thumbnail when a scene is changed.

The thumbnail extraction method may be set in advance in the thumbnail extraction unit 114 or may be selected and set by the user among various methods.

The thumbnail extractor 114 stores metadata about the thumbnail in the storage unit 116 together with the thumbnail extracted from the video data. The metadata includes information about the thumbnail. For example, the metadata includes information on a location where the thumbnail is extracted from the image data.

Accordingly, the storage unit 116 stores image data of a program selected by a user, thumbnails, metadata, and the like corresponding to the recording.

In addition to storing image data of a broadcast program received through the tuner as described above, the image data may be received from a separate external input interface (not shown) and stored in the storage unit 116.

Even when the externally input image data is stored in the storage unit 116, a thumbnail is extracted from the video data decoded by the A / V decoder 112 and stored in the storage unit 116.

If the externally input image data is not in the MPEG stream format, a separate MPEG encoding process for converting the input image data into the MPEG stream format is further required. In this case, an MPEG encoder (not shown) is further provided to encode input image data.

In order to check the image data stored in the storage unit 116, that is, the recording, the user inputs a command for requesting a recording list using the main menu or the remote controller.

2 is a diagram illustrating a menu including confirmation of a recording list according to an embodiment of the present invention.

Such a menu is implemented in the OSD (On Screen Display) unit 118 under the control of the controller 110. The implemented menu is displayed on the display 120.

When a user inputs a command for checking a recording list by using the menu as described above, a list of recordings is displayed on the screen using thumbnails stored in the storage unit 116.

3 is a diagram illustrating a recording list screen using a thumbnail as an embodiment according to the present invention.

In the recording list screen, the list of each program unit is listed vertically, and the contents of each program are listed horizontally.

For example, each 'TEST' image and a news image vertically positioned in FIG. 3 are thumbnails of respective recorded program units. The horizontally located thumbnails of the activated news images among the recorded programs are thumbnails extracted from the news.

The time shown at the bottom of each thumbnail extracted from the news indicates a time zone in which the thumbnail was extracted from the news image. For example, '00: 05 'refers to a thumbnail extracted when 5 minutes have elapsed since the recording time of the news image.

When there are many thumbnails extracted from the news, it is difficult to express all the thumbnails extracted on one screen. Therefore, the thumbnail displays only a certain number on the screen, and the remaining thumbnails can be searched using a direction key provided in the remote controller or the playback apparatus.

In the case of other recordings other than the activated recordings as shown in FIG. 3, only the representative thumbnails of the recordings are not displayed on the screen. The representative thumbnail may use a thumbnail or the like extracted first from the recording.

When the user inputs a right direction key or the like of the remote control at the location of the thumbnail 300 activated among the thumbnails extracted from the news image, all the thumbnails extracted from the news are moved one by one to the left.

Accordingly, in the case of FIG. 3, the thumbnail 310 extracted at '00: 17 'is moved to a position where the activated thumbnail is located. On the right side of the thumbnail extracted at '01: 00 ', the next thumbnail extracted after '01: 00' appears on the screen, and the thumbnail extracted at '00: 00 'disappears to the left of the screen.

On the contrary, when the user inputs a left direction key or the like of the remote control at the location of the thumbnail 300 which is activated among the thumbnails extracted from the news image, all the thumbnails extracted from the news are moved one by one to the right.

When retrieving thumbnails extracted from one activated recording as described above, thumbnail positions or thumbnail contents of other 'TEST' recordings other than the thumbnails of the activated recordings are not changed.

When the user inputs an upward direction key of the remote control at the location of the thumbnail 300 of the activated news image among the stored recordings, the list of recordings moves one by one.

For example, in FIG. 3, the representative thumbnail of the recording 'TEST' directly above the news image is moved to a position where the activated thumbnail is located. In addition, a representative thumbnail of the previous recording appears on the screen on the representative thumbnail of the recording 'TEST' at the top in FIG. 3, and the representative thumbnail of the recording 'TEST' at the bottom in FIG. 3 disappears to the lower side of the screen. .

Since other recordings other than the active recordings are not displayed on the screen except the representative thumbnails, only the representative thumbnails are displayed on the screen other than the 'TEST' recordings immediately above the news image activated by the direction key input. .

Accordingly, in the news image of FIG. 3, only a representative thumbnail of the news image is displayed on the screen, and the remaining thumbnails extracted from the news image are not displayed on the screen.

In the case of the 'TEST' recording directly above the news image, the extracted thumbnails are displayed horizontally on the screen.

On the contrary, when the user inputs a downward direction key or the like of the remote control at the location of the thumbnail 300 of the activated news image among the stored recordings, the list of recordings moves one by one.

The recording list screen may display thumbnails of recordings together with information about the recordings on the screen.

The information window 320 of FIG. 3 displays information of activated recordings in the recording list, information of activated thumbnails among thumbnails of the recordings, and the like.

The information of the recording or the information of the activated thumbnail uses information stored in the program information database 108 or metadata information stored with the extracted thumbnail.

The information displayed on the information window 320 is not limited to information such as the title of the recording shown in FIG. 3, the content of the video, the broadcast time, the running time, the viewing grade, the total length of the recording, the number of extracted thumbnails, and the like. Contains various information of the same recording.

The recording list screen as shown in FIG. 3 is implemented by the OSD unit 118 using recordings, thumbnails, and metadata stored in the storage unit 116 under the control of the controller 110.

When the information window 320 is displayed together on the recording list screen, the OSD unit may be configured by using program related information stored in the program information database 108 or metadata of thumbnails stored in the storage unit 116. In 118, the recording list is implemented as one screen.

The recording list screen implemented in the OSD unit 118 is provided to the user through the display unit 120.

By using the recording list screen, a user may edit and play a playlist of a recording to be watched.

4 is a diagram illustrating a screen for editing a playlist using a thumbnail according to an embodiment of the present invention.

The user may edit the playlist by selecting the recording to be viewed on the recording list screen as shown in FIG. 3. In addition, a playlist may be edited by selecting only a portion of the recording to be watched.

From among the recording list using the thumbnail of FIG. 4, the user selects a recording to be watched using up and down keys on the remote controller. When the thumbnails extracted from the activated recording through the selection are displayed horizontally on the screen, the user selects the thumbnail to be activated by using the left and right arrow keys of the remote control.

The user selects and activates a desired thumbnail and inputs a command to register the thumbnail to a playlist. The command is input using a specific key of the remote controller or a specific key provided in the playback apparatus.

5 is a diagram illustrating a menu for registering a playlist as an embodiment according to the present invention.

When a user inputs a command for registering a thumbnail, a menu as shown in FIG. 5 is displayed on the screen in the form of a pop-up menu on the activated thumbnail. In addition, the recording playlist window 400 displaying thumbnails registered by the user in the playlist is displayed on the screen as shown in FIG. 4.

The menu or recording playlist window 400 for registering the thumbnail is implemented in the OSD unit 118 under the control of the controller 110 and displayed on the screen.

When the user selects 'register thumbnail' in the thumbnail registration menu, the activated thumbnail is registered in the recording list. When a thumbnail is registered through the 'register thumbnail', it is included in the playlist from the registered thumbnail to the end of the recording.

Selecting 'Play Start' from the menu registers the activated thumbnail to a play start position. If 'play end' is selected in the menu, the activated thumbnail is registered at a play end position.

Thus, by using the 'playing start' and 'playing end', only a part of the recording to be watched can be registered and edited in the playlist.

For example, the thumbnail 300 extracted from the position of '00: 05 'among the news images is selected and registered as a' playing start 'position, and the thumbnail 330 extracted from the position of '01: 00' among the news images. If the user selects and registers as the 'play end' position, the playback starts from the position of '00: 05 'of the stored news image to the position of '01: 00' at the time of playing the playlist.

If only the thumbnail of the 'playing start' is registered and the thumbnail of the 'playing end' is not registered, the end of the recording is included in the playlist. If only the thumbnail of the 'playing end' is registered and the thumbnail of the 'playing start' is not registered, it is included in the playlist from the beginning of the recording.

'Delete thumbnail' is used to cancel registration of a thumbnail registered through the menu.

Thumbnails of recordings registered in the playlist through the above process are displayed in the recording playlist window 400.

In the recording playlist window 400, the thumbnail registered at the playback start position is displayed at the top, and the thumbnail registered at the playback end position is displayed at the bottom of the playback start position thumbnail.

In addition, the recordings registered in the recording playlist window 400 are reproduced from the recordings registered on the left side and reproduced in the order of the recordings registered on the right side.

In the recording playlist window 400 of FIG. 4, thumbnails displayed at an upper portion among thumbnails divided up and down represent a playback start position of each corresponding recording, and thumbnails displayed at the bottom represent a playback end position of each corresponding recording.

That is, in the case of a news image registered in the recording playlist, when a playlist reproduction command is input, the news image is reproduced starting from the position of the thumbnail displayed at the top and the position of the thumbnail displayed directly below it.

When the playback ends up to the thumbnail displayed at the playback end position of the news image, the recording is played back from the thumbnail position of the next recording displayed immediately above to the position of the thumbnail displayed immediately below.

The controller 110 stores the information about the playlist in the memory 122 and controls playback to be performed according to the playlist stored in the memory 122 when a user plays a playlist.

When playing the playlist, the controller 110 controls the storage unit 116 to read data of the recordings registered in the playlist. The data is decoded by the A / V decoder 112 and displayed on the display unit 120.

When searching for the playback start position and the playback end position in the recording data stored in the storage unit 116, the location information included in the metadata of the thumbnail is used.

6 is a diagram illustrating a progress bar indicating a playback situation according to an embodiment of the present invention.

After registering the thumbnail in the recording playlist as described above, if the user inputs a command to play the playlist, the recording starts to be played in order.

Under the control of the controller 110, the data of the recording data stored in the storage unit 116 is read, decoded, and displayed on the display unit 120.

At this time, a progress bar as shown in FIG. 6 is displayed on the screen so that a user can know the progress of playing the playlist.

When the progress bar is used, a position bar indicating a current playback position may be moved to search for a desired position among recordings registered in the playlist, and play back from that position.

The progress bar does not display on the screen unless the user inputs a command requesting the display of the progress bar. When the user inputs a command for requesting the progress bar, the progress bar is displayed together on the screen while the recording of the playlist is displayed on the screen as shown in FIG.

7 is a diagram illustrating a screen on which a progress bar is implemented according to an embodiment of the present invention.

The progress bar displays the playback progress status such as the play time, the current elapsed time, the current play position, and the like of the entire playlist. The progress bar may display thumbnails of recordings registered in a playlist.

Thumbnails and the like of the recordings registered in the playlist are displayed on the progress bar as shown in FIG.

When the registered bar occupies a position occupied by the registered recording, it may be distinguished using a dotted line as shown in FIG. 6, and a different color is assigned to each of the registered recordings to determine a position occupied by the registered recording. You can also distinguish.

8 is a flowchart illustrating a process of editing a playlist using a thumbnail as an embodiment according to the present invention.

The broadcast program data received according to a user's storage command or image data input from the outside is stored in the storage unit 116. In operation S810, thumbnails are extracted from the received broadcast program or input image data.

The thumbnail may be extracted periodically at predetermined time intervals or when the scene is switched.

When the user inputs a command for requesting the display of the recording list (S820), the recording list is displayed on the screen by using the extracted thumbnail (S830).

The user searches for a recording through the recording list using the thumbnail, selects a thumbnail of the recording to be viewed, and edits the playlist (S840).

In the case of selecting and registering thumbnails from several recordings through the playlist editing, the recordings registered in the playlist may be continuously played.

When the user finishes editing the playlist and inputs a playback command, the recordings registered in the playlist are sequentially displayed and displayed on the screen (S850).

In response to a user's request, a progress bar indicating a play status of the playlist may be displayed on the screen.

The present invention is not limited to the above-described embodiments, and can be modified by those skilled in the art as can be seen from the appended claims, and such modifications are within the scope of the present invention. .

As described above, according to the recording and playback apparatus and method of the present invention, by providing a list of recordings and editing a playlist by using thumbnails, the user can conveniently search for and play back an image to be watched. There is.

Claims (21)

Thumbnail extraction unit for extracting a thumbnail from the image data; A storage unit which stores the image data and the extracted thumbnails; An OSD unit for implementing a recording list screen displaying one or more thumbnails for each of the stored image data by using the stored thumbnails; And And a controller for extracting a thumbnail from the image data and controlling to implement the recording list screen. The method of claim 1, And a program information database for storing information about an image of the image data. The method of claim 2, And an information window on a recording list screen using the information about the video. The method of claim 2, And the information about the video includes at least one of a title, a content, a broadcast time, a running time, a rating, and the number of thumbnails extracted from the video. The method of claim 1, And a memory for storing information about the playlist. The method of claim 1, The image data, Recording apparatus for playback, characterized in that the image data of the broadcast program or the external input image data. The method of claim 1, The thumbnail extracting unit, Recording apparatus, characterized in that for extracting thumbnails at regular time intervals. The method of claim 1, The thumbnail extracting unit, And a thumbnail is extracted when the scene of the video is switched. The method of claim 1, The recording list screen, And displaying one representative thumbnail for each stored image data, wherein the activated image data among the stored image data displays one or more thumbnails extracted from the image data. The method of claim 9, The recording list screen, And the representative thumbnails of the stored image data are arranged vertically, and the thumbnails of the activated image data are arranged horizontally. The method of claim 10, And a representative thumbnail of the image data to be activated by using up and down arrow keys. The method of claim 10, And selecting a desired thumbnail from among the thumbnails of the activated image data by using the left and right arrow keys. The method of claim 1, And a playlist edited using thumbnails displayed on the recording list screen. The method of claim 13, And selecting a desired thumbnail from among the thumbnails displayed on the recording list screen, and registering it as one of a playback start position or a playback end position of the playlist. The method of claim 13, When playing the edited playlist, And a progress bar indicating a playback status on the screen while displaying the video data registered in the playlist on the screen. The method of claim 15, The progress bar, Recording apparatus for displaying on the screen according to the user's display request. The method of claim 15, And a corresponding thumbnail of the image data registered in the playlist on the progress bar. Extracting thumbnails from the image data and storing the thumbnails together with the image data; Displaying a recording list screen displaying one or more thumbnails for each of the stored image data using the thumbnails; Editing a playlist using thumbnails displayed on the recording list screen; And And displaying the stored image data on the screen according to the edited playlist. The method of claim 18, The recording list screen, And displaying one representative thumbnail for each stored image data, wherein the activated image data among the stored image data displays one or more thumbnails extracted from the image data. The method of claim 19, The recording list screen, Representative thumbnails of the stored video data are arranged vertically, and thumbnails of the activated video data are arranged horizontally. The method of claim 18, And displaying a progress bar indicating a playback situation on a screen according to a user's request.

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