KR20080061455A - Apparatus and method for controling time shift status display in data broadcasting receiver - Google Patents

Abstract

An apparatus and a method for controlling a time shift state in a data broadcast receiver are provided to allow a user to check a recording and reproducing state simply according to a time shift operation by displaying a bar type guidance screen image. A buffer(19) temporarily stores a data broadcast program. An HDR(Hard Disk Recorder) system(20) records and reproduces the temporarily stored data broadcast program and a received general broadcast program in or from a recording medium. When a plurality of time shift state displays with respect to the data broadcast program and the general broadcast program are requested, a microcomputer(12) searches a recording and reproducing state and a data buffering state, and controls an operation of generating a corresponding guidance screen image. An OSD generator(22) generates a guidance screen image corresponding to the recording and reproducing state and the data buffering state as an OSD image.

Description

Apparatus and method for controling time shift status display in data broadcasting receiver}

1 illustrates a configuration of a data broadcast receiver to which the present invention is applied.

2 illustrates an embodiment of a guide screen displaying a time shift state according to the present invention;

3 is a flowchart illustrating an operation of a method for controlling time shift status display in a data broadcast receiver according to the present invention;

4 illustrates an embodiment of a guide screen in which a plurality of time shift states are displayed according to the present invention.

※ Explanation of code for main part of drawing

10: Tuner 11: Demux

12: microcomputer 13: memory

14: Audio Decoder 15: Video Decoder

16: data decoder 17: audio processor

18: video processor 19: buffer memory

20: HDR system 21: hard disk

22: OSD generator

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for controlling time shift status display in a data broadcast receiver. For example, the present invention relates to a recording medium such as a hard disk (HDD), which records before a predetermined time while recording data broadcasting. A data broadcast time shift status display control apparatus and method in a data broadcast receiver having a time shift function for reproducing data.

Recently, code or binary data, for example, Java applications, HTML applications, or XML data, which are not audio and video, have been coded as binary data through digital broadcast propagation. Data broadcasting is provided to provide data of various contents in the form of data.

On the other hand, in a data broadcasting receiver such as a digital television (D-TV) or a set top box (STB) that receives the data broadcasting, when receiving a data broadcasting stream in the form of the code or binary data, the SDRAM ( A series of buffering operations are performed to temporarily store data in a buffer memory such as SDRAM.

In addition, the data buffered in the buffer memory is decoded and signal processed to be output and displayed as audio, video, text, or the like. A user selection menu screen such as a video, various text information, and an icon capable of a user interface may be simultaneously displayed.

On the other hand, as described above, since the data broadcast is transmitted as a code or binary data stream, the data broadcast receiver receiving the data temporarily stores the code or binary data stream and then automatically generates a signal such as audio, video, and text. You must perform processing operations.

However, for example, when a user watches a digital broadcasting channel providing general audio and video and then switches to a data broadcasting channel providing code or binary data, a predetermined amount of code or code is stored in the buffer memory. Until the binary data is buffered, the self decoding and signal processing operations cannot be performed, thereby outputting and displaying the standby screen for a predetermined time.

In addition, while buffering code or binary data in the buffer memory, when the user switches to the general broadcast channel, all the buffered data is cleared before, so that the previous data broadcast channel is again performed in the general broadcast channel. Even when returning to, since the standby screen is outputted from the channel return time until a predetermined amount of code or binary data is buffered in the buffer memory, the user standby time is frequently generated for a long time.

Accordingly, the present invention has been created to solve the above problems, for example, a time shift for reproducing data recorded before a predetermined time while recording a data broadcast on a recording medium such as a hard disk (HDD). When the time shift status display is requested during the operation, the apparatus and method for controlling the time shift status display in the data broadcast receiver for displaying a screen for guiding the recording and playback state and the data buffering state are displayed. There is a purpose.

According to another aspect of the present invention, there is provided a method of controlling a time shift state display in a data broadcast receiver, the method including: performing a time shift operation of recording and reproducing data broadcast program data on a recording medium; Retrieving a recording and playback state and a data buffering state when a status indication of the time shift operation is requested; And generating and outputting a guide screen corresponding to the retrieved recording and reproducing state and the data buffering state.

The first step is to perform a time shift operation of reproducing the recorded data before a predetermined time while recording the data broadcast program data on the hard disk, and the second step is to display a state display for the time shift operation. If requested, the start and end information of the corresponding data broadcast program, the recording amount and the recording rate, the buffer memory capacity and the data buffering amount, and the current playback position are searched, and the three steps include the searched recording and playback states and data. It generates and outputs a guide screen of a bar shape corresponding to the buffering state as an OSD image.

Further, the apparatus for controlling time shift status display in a data broadcast receiver according to the present invention includes: storage means for temporarily storing a data broadcast program; Recording and reproducing means for recording and reproducing the temporarily stored data broadcasting program on a recording medium; Control means for retrieving a recording and reproducing state and a data buffering state and controlling generation of a guide screen corresponding to the time shift state display for the data broadcasting program; And an OSD generating means for generating and outputting a guide screen corresponding to the recording and reproducing state and the data buffering state as an OSD image according to the operation control of the control means.

The storage means is a buffer memory for temporarily storing the data broadcast program, and the recording and reproducing means reads and reproduces data recorded before a predetermined time while recording the temporarily stored data broadcast program on a hard disk. A hard disk recorder, and the control means, when a status indication of the time shift operation is requested, the start and end information of the data broadcasting program, the recording amount and the recording rate, the buffer memory capacity and the data buffering amount, and the current reproduction. To search for a location,

In addition, the OSD generating means generates and outputs a bar-shaped guide screen corresponding to the recording and reproducing state and the data buffering state as an OSD image according to the operation control of the control means. The guide screen of the form is characterized in that any one or more of the start and end of the data broadcasting program, the recording end and recording ratio, the buffer end and the buffering position are displayed.

In addition, the method for controlling the time shift state display in the data broadcast receiver according to the present invention includes: a first step of performing a plurality of time shift operations for recording and reproducing general broadcast program data and data broadcast program data on a recording medium; Searching for a recording and playback state of the general broadcast program, a recording and playback state for the data broadcast program, and a data buffering state, respectively, when a status indication of the plurality of time shift operations is requested; And generating and outputting a guide screen corresponding to each of the retrieved recording and reproducing states and the data buffering states, respectively.

The first step is to perform a plurality of time shift operations for respectively reproducing the recorded data before a predetermined time while recording the general broadcast program data and the data broadcast program data on the hard disk, respectively. When the status indication of the plurality of time shift operations is requested, the start and end information of the general broadcast program, the recording amount and the recording rate, and the current playback position are searched, and the start and end information of the data broadcast program are searched. , The amount of recording and the rate of recording, the buffer memory capacity and the amount of data buffering, and the current playback position are searched, wherein the three steps include a plurality of bars corresponding to the retrieved recording and playback states and the data buffering states, respectively. Characterized in that it generates and outputs the guide screen of the form as an OSD image,

Further, the apparatus for controlling time shift status display in a data broadcast receiver according to the present invention includes: storage means for temporarily storing a data broadcast program; Recording and reproducing means for recording and reproducing the temporarily stored data broadcasting program and the received general broadcasting program on a recording medium, respectively; Control means for retrieving a recording and reproducing state and a data buffering state and controlling generation of a guide screen corresponding to the plurality of time shift state indications for the data broadcasting program and the general broadcasting program; And an OSD generating means for generating and outputting a guide screen corresponding to the recording and reproducing state and the data buffering state as an OSD image according to the operation control of the control means.

The storage means is a buffer memory for temporarily storing the data broadcast program, and the recording and reproducing means records the temporary data broadcast program and the received general broadcast program on a hard disk, respectively. And a hard disk recorder that reads and reproduces the data recorded in the

The control unit may search for the start and end information of the general broadcast program, the recording amount and the recording rate, and the current playback position, when the status display for the plurality of time shift operations is requested. It searches for the start and end information of a broadcast program, recording amount and recording rate, buffer memory capacity and data buffering amount, and current playback position.

The OSD generating means may generate and output a guide screen having a bar shape corresponding to the recording and reproducing state and the data buffering state according to the operation control of the control means. .

Hereinafter, a preferred embodiment of an apparatus and method for controlling time shift status display in a data broadcast receiver according to the present invention will be described in detail with reference to the accompanying drawings.

1 shows a configuration of a data broadcasting receiver to which the present invention is applied. For example, a tuner 10 and a demux are used for a data broadcasting receiver such as a digital television (D-TV) or a set-top box (STB). (11), microcomputer (12), memory (13), audio decoder (14), video decoder (15), data decoder (16), audio processor (17), video processor (18), buffer memory (19), The HDR (HDD Recorder) system 20, the hard disk 21, the OSD generator 22, and the like are included.

On the other hand, in the microcomputer 12, if any one broadcasting channel is selected by a user's key input, the tuner 10 is operated to tune the broadcasting channel, and the demux 11 performs the tuning. Search and confirm the packet ID included in the header of the transport packet of the broadcast data stream received through the tuner 10, for example, the MPEG transport stream. Done.

The audio data recorded in the payload of the transport packet is output to the audio decoder 14 and the video data is output to the video decoder 15 with reference to the confirmed packet ID. For example, if the currently tuned broadcast channel is a data broadcast channel, the demux 11 refers to a packet ID included in a header of the transport packet, for example, code or binary data, for example, a Java application, Alternatively, data obtained by encoding HTML application or XML data into binary data is output to the data decoder 16.

On the other hand, in the data decoder 16, the code or binary data is buffered in the buffer memory 19. For example, the buffer memory 19 has an SDRAM of 32MB or 64MB recording size. ) May be used, and when a certain amount of data is buffered in the buffer memory 19, the data decoder 16 reads and decodes the buffered data.

The audio data of the decoded data is output to the audio processor 17, and the video data of the decoded data is output to the video processor 18, and text or a user selection of the decoded data is output. Various content data such as an icon is output to the microcomputer 12.

On the other hand, the microcomputer 12, the operation control the OSD generating unit 22, so that a menu screen of various contents such as the text or user selection icon is output, so that the user, by the audio processor and the video processor At the same time as watching the audio and video signal processing itself, it is possible to watch a menu screen of various contents such as the text or user selection icon.

In addition, in the microcomputer 12, when performing a time shift operation according to a user's request, a code or binary buffered in the buffer memory 19 by controlling the HDR system 20. While recording data on the hard disk 21, a series of time shift operations for reproducing data recorded before a predetermined time are performed.

On the other hand, during the time shift operation described above, when a time shift state display operation is requested by the user, the data recording and reproducing state of the hard disk 21 and the data buffering state of the buffer memory 19 are performed. After the operation is performed, the OS D generation unit 22 is controlled to generate and output a guide screen indicating a current recording and reproducing state and a data buffering state, as shown in FIG. 2. The explanation is as follows.

3 is a flowchart illustrating a method of controlling a time shift state display in a data broadcast receiver according to the present invention. For example, while receiving a data broadcast stream (S10), a time shift is requested by a user. In the case of performing an operation, the microcomputer 12 operates the data decoder 16 and the HDR system 20 to control code or binary data temporarily stored in the buffer memory 19 on the hard disk. After recording at 21, a series of time shift operations are performed to read and reproduce data recorded before a predetermined time (S11).

On the other hand, the microcomputer 12, while performing the time shift operation as described above, when the time shift status display is requested by the user (S12), the program information for the currently received data broadcast is retrieved ( S13).

For example, the service information provided intermittently through digital broadcasting includes various broadcast program information such as a broadcast program name, a broadcast program start and end time, and the like. The received service information is searched in the memory 13 to search and confirm the start and end times of the data broadcast program currently being received.

In addition, the microcomputer 12 searches for the recording amount of the data broadcasting program recorded on the hard disk 21, and then calculates the recording ratio (S14). For example, the data broadcasting program is '100'. Minute ', and when the '75 minutes' data is recorded on the hard disk, the recording rate is calculated as '75%'.

In addition, the microcomputer 12 searches for the recording capacity of the buffer memory 19 and the amount of data currently buffered (S15). For example, the recording capacity of the buffer memory is 64MB and is currently buffered. If the data is 21MB, it is determined that about one third of the data is buffered, and the data recording position of the hard disk currently being read and reproduced is searched and confirmed as the display position (S16).

On the other hand, the microcomputer 12, in accordance with the search results, the operation control the OSD generating unit 22 to generate and output a guide menu screen of the OS video showing the current time shift state, For example, as shown in FIG. 2, a bar-shaped guide menu screen may be generated and output.

In addition, the bar-shaped guide menu screen may display a start and end of a corresponding data broadcasting program, a recording end of a hard disk, and a recording rate (eg, Record = 75%) of the hard disk. In addition, the buffer end (Buffer_End) indicating the recording capacity of the buffer memory, and the actual buffering (Buffering) state is displayed.

In addition, the actual buffering state displayed on the guide menu screen gradually increases as time passes, and when a certain time passes, the buffering state is initialized to a zero value. Through the guide menu screen, it is possible to easily check the recording and playback state and the data buffering state of the data broadcast program currently being viewed. In particular, the channel change timing is appropriately adjusted with reference to the buffering state.

For example, by waiting for a channel change until the buffering state displayed on the guide menu screen is initialized to a value of zero, data buffered for a predetermined time in the buffer memory 19 is stored in the hard disk. Before recording, it is possible to prevent the channel change from being cleared without meaning.

In addition, the microcomputer 12 performs a corresponding operation requested by the user later (S18). For example, after switching to a general broadcast channel and returning to a previous data broadcast channel, the hard disk By using the data recorded in 21, it is possible to quickly output and display the data broadcast screen without the standby screen.

Meanwhile, FIG. 4 illustrates an embodiment of a guide screen in which a plurality of time shift states are displayed according to the present invention. For example, one digital broadcast channel may include a plurality of broadcast programs (eg, eight broadcast programs). A service broadcast program) can be received in a multiplexed state, wherein the microcomputer 12 operates and controls the demux 11 according to a user's request to provide voice and video; It is possible to simultaneously select data broadcast programs that provide code or binary data.

In the HDR system 20, a plurality of time shifts are performed to read and reproduce data recorded before a predetermined time while recording the general broadcast program and the data broadcast program simultaneously selected as described above on the hard disk 21, respectively. An operation may be performed. For example, in the HDR system, a time shift operation for four broadcast programs is generally possible.

On the other hand, in the microcomputer 12, when a plurality of time shift state display operations are requested by the user, as described above with reference to FIG. 3, the memory 13 provides service information intermittently provided through digital broadcasting. In the search, the broadcast program start and end times for the general broadcast program and the broadcast program start and end times for the data broadcast program are respectively identified.

After confirming the recording and reproducing states of the general broadcast program and the data broadcasting program recorded and reproduced by the HDR system 20, and confirming the buffering state of the buffer memory 19, the OSD is generated. The controller 22 operates to generate and output a plurality of time shift operation states of the general broadcast program and the data broadcast program on a guide menu screen of the OS video.

On the other hand, the guide menu screen, as shown in Figure 4, the start and end of the data broadcast program (Program Start / End), the recording end (Record) and recording rate of the hard disk (for example, Record = 75%), In addition, the buffer end (Buffer_End) indicating the recording capacity of the buffer memory and the actual buffering state are displayed. The start and end of a general broadcast program, the recording end of the hard disk, and the recording rate (eg Record) = 88%).

Accordingly, the user can easily check the time shift operation state for the general broadcast program and the time shift operation state for the data broadcast program through the guide menu screen, and thus can appropriately adjust the channel change time point.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The apparatus and method for controlling time shift state display in a data broadcast receiver according to the present invention constructed and constructed as described above are recorded before a predetermined time while recording data broadcast, for example, on a recording medium such as a hard disk (HDD). During the time shift operation for reproducing data, if a time shift status display is requested, a bar-shaped guide screen for guiding the recording and playback status and the data buffering status is displayed, thereby allowing the user to display the information. It is possible to easily check the recording and playback status by the time shift operation, and also to accurately check the current data buffering state through the guide screen, it is a very useful invention that the user can appropriately adjust the channel change timing will be.

Claims (18)

Performing a plurality of time shift operations for recording and reproducing general broadcast program data and data broadcast program data on a recording medium, respectively; Searching for a recording and playback state of the general broadcast program, a recording and playback state for the data broadcast program, and a data buffering state, respectively, when a status indication of the plurality of time shift operations is requested; And And generating and outputting a guide screen corresponding to each of the retrieved recording and reproducing states and the data buffering states, respectively. The method of claim 1, In the step 1, the general broadcast program data and the data broadcast program data are respectively recorded on the hard disk, and a plurality of time shift operations for reproducing the recorded data prior to a predetermined time are performed in the data broadcast receiver. Time shift status display control method. The method of claim 2, And the predetermined time is varied according to a user's key input. The method of claim 1, In the second step, when the status display for the plurality of time shift operations is requested, the data broadcasting program is searched for, while searching for the start and end information of the general broadcast program, the recording amount and the recording rate, and the current playback position. A method of controlling time shift status display in a data broadcast receiver characterized by retrieving start and end information, a recording amount and a recording rate, a buffer memory capacity and a data buffering amount, and a current playback position. The method of claim 4, wherein The start and end information of the broadcast program is included in service information provided through digital broadcasting. The method of claim 4, wherein And the recording amount and the recording rate are the hard disk recording time and the recording rate of the general broadcast program or the entire data broadcast program to date. The method of claim 4, wherein And the buffer memory capacity and the data buffering amount are the capacity of the buffer memory for temporarily storing the data broadcasting program and the data buffering amount. The method of claim 4, wherein And the current reproduction position is a position at which data is read out and reproduced from a hard disk on which the general broadcast program or the data broadcast program is recorded, respectively. The method of claim 1, In the step 3, the time shift status display in the data broadcasting receiver, generating and outputting a plurality of bar-shaped guide screens corresponding to the retrieved recording and playback states and the data buffering states, respectively, as an OSD image. Control method. The method of claim 9, In the plurality of bar-shaped guide screens, any one or more of the start and end of the general broadcast program, the recording end, and the recording rate are displayed, and the start and end of the data broadcast program, the recording end and the recording rate, and the buffer end. And at least one of a buffering position is displayed. Storage means for temporarily storing a data broadcast program; Recording and reproducing means for recording and reproducing the temporarily stored data broadcasting program and the received general broadcasting program on a recording medium, respectively; Control means for retrieving a recording and reproducing state and a data buffering state and controlling generation of a guide screen corresponding to the plurality of time shift state indications for the data broadcasting program and the general broadcasting program; And In accordance with the operation control of the control means, the data broadcast receiver characterized in that it comprises an OSD generating means for generating and outputting a guide screen corresponding to the recording and playback state and the data buffering state as an OSD image Time shift status display control. The method of claim 11, And said storage means is a buffer memory for temporarily storing said data broadcast program. The method of claim 11, The recording and reproducing means is a hard disk recorder which reads and reproduces data recorded before a predetermined time while recording the temporarily stored data broadcasting program and the received general broadcasting program, respectively. Time shift status display control at the receiver. The method of claim 11, When the display of the plurality of time shift operations is requested, the control means searches for the start and end information of the general broadcast program, the recording amount and the recording rate, and the current playback position. And the start and end information of the recording, the recording amount and the recording rate, the buffer memory capacity and the data buffering amount, and the current playback position. The method of claim 14, The start and end information of the broadcast program is included in the service information provided through digital broadcasting. The method of claim 14, And the recording amount and the recording rate are the hard disk recording time and recording rate to the present day for all of the general broadcast program or the entire data broadcast program. The method of claim 14, And the buffer memory capacity and the data buffering amount are the capacity of the buffer memory for temporarily storing the data broadcast program and the data buffering amount. The method of claim 11, The OSD generating means generates and outputs an OSD image of a plurality of bar-shaped guide screens corresponding to the recording and reproducing state and the data buffering state according to the operation control of the control means. Time shift status display control device in a data broadcast receiver.

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