KR100826017B1 - Recording Control Device and Method of Image Display Equipment - Google Patents

Abstract

The present invention relates to a program recording control method in a digital video recorder (DVR) system, and more particularly, to a recording control apparatus and method for a video display device for recording a current broadcast program including a time shifted portion.

In addition, the present invention provides a recording control method of a video display device equipped with a time shift function, storing a time shift start position when a time shift command is input, and starting recording from the start position of the time shift. It is characterized by including.

According to the present invention, if the user wants to record from the beginning of the program currently being viewed, the user can simply record the entire program from the starting position of the program without the hassle of searching for the starting position of the program.

Time shift, save start position, record entire program, change channel

Description

Recording control device and method of image display device {Method and apparatus for controlling record of (an) image display device}

1 is a flowchart illustrating a recording control method of a video display device according to the related art.

2 is a block diagram showing the configuration of a recording control apparatus for a video display device according to an embodiment of the present invention;

3 is a flowchart illustrating a recording control method of an image display device according to an embodiment of the present invention.

4 is a diagram illustrating a recording section according to an embodiment of the present invention.

<Description of Signs of Major Parts of Drawing>

100: IR receiver 110: control unit

111: memory 120: tuner

130: Demux 140: Decoder

150: video signal processing unit 160: video output unit

170: display unit 180: TP receiving unit

190: IDE part 200: HDD

The present invention relates to a program recording control method in a digital video recorder (DVR) system, and more particularly, to a recording control apparatus and method for a video display device for recording a current broadcast program including a time shifted portion.

In general, the development of digital technology has promoted the digital broadcasting of analog broadcasting. Accordingly, multi-channel broadcasting and high quality of broadcasting are possible, and digital TV has been developed into various application products, not just TV receivers. Its application is now

WEB TV and DVR are being developed in each country. DVR is also called PVR (Personel Video Recorder).

Unlike VCRs that store video signals on magnetic tapes, DVRs are digital recording devices that record and play back information on a hard disk. When a channel is selected, the DVR automatically stores the current broadcast signal digitally on the hard disk and plays it simultaneously. This enables a time shift function, which is an important function of the DVR.

According to the time shift function, when the user presses the stop button and then presses the play button again, the stored broadcast signal is replayed from the point where it was stopped. In addition, the viewer can watch the program currently being broadcast or play back in slow motion and skip the boring part.

If the user records during this time shift operation, the previously broadcasted broadcast can be recorded by recording the stored broadcast signal.

That is, the conventional recording control method may start from the current time point, a reservation recording control method that starts recording at the start time of a program scheduled to be broadcast, and may start from a past broadcast in the case of time shift.

However, when recording time-shifted broadcast signals, program-related information is not maintained or managed in time-shifted mode. Therefore, when recording a past broadcast, recording time should be searched and set.

1 is a flowchart illustrating a case of recording a time shifted broadcast according to the prior art.

First, the time shift command is recognized and time shift is performed (S10). The time shift function can be started by user's command or can be started automatically at the beginning of the digital TV.

When the time shift command is input, the recording start position is searched for (S20). After searching, it is checked whether it is a program start position (S30), and if it is a start position, recording starts (S40).

As described above, according to the related art, when the time shift is in progress, past broadcasts can be recorded, but there is a problem in that the start position of the program must be searched by returning the time shift. Therefore, there is a problem that it is difficult to set the exact start position of the program and the operation is not only inconvenient to prepare for recording but also takes a lot of time.

An object of the present invention is to provide a method for recording an entire program including a broadcast which is time-shifted at the time of recording by displaying a portion at which a time shift has started to solve the above problem.

Another object of the present invention is to provide a value and method for starting recording from a changed time point when a channel or an external input signal is changed during time shift.

Another object of the present invention is to provide an apparatus and method for recording from a changed time point when an input signal without broadcast information such as EPG during a time shift is changed.

The recording control apparatus for a video display device according to the present invention for achieving the above object is a storage unit for storing the broadcast signal input from the outside, and the format of the broadcast signal or the broadcast signal stored in the storage unit for display conversion A video display device comprising: a video signal processing unit; and a display unit for displaying an output signal from the video signal processing unit, the video display device comprising: a memory unit; and controlling the time shift start position to be stored in the memory unit, and recording from the time shift start position. It characterized in that it comprises a control unit for controlling to.

In addition, the present invention provides a recording control method of a video display device equipped with a time shift function, storing a time shift start position when a time shift command is input, and starting recording from the start position of the time shift. It is characterized by including.

In addition, the present invention provides a recording control method for a video display device equipped with a time shift function.

Storing a time shift start position when a time shift command is input; Starting a time shift according to the time shift command; Checking whether a channel or broadcast information is changed during the time shift; Storing the time shift start position again when the channel or broadcast information is changed in the result of the checking, and continuously performing time shift when the channel or broadcast information is not changed; And moving to a time shift start position and recording according to a recording command after checking whether the channel or broadcast information has been changed.

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

2 is a block diagram showing a configuration according to an embodiment of the present invention.

The image display device according to the present invention includes an IR receiver 100, a controller 110, a tuner 120, a demux 130, a decoder 140, a video signal processor 150, a video output unit 160, a display. The unit 170, the TP controller 180, the IDE unit 190, and the HDD 200 are included.

The IR receiver 100 receives a remote control code selected by a user and transmits the code to the controller 110.

The controller 110 interprets the remote control code transmitted from the IR receiver 100 to transmit the remote control code information to the corresponding device and controls the entire system. The controller 110 includes a memory 111 in which a time shift start position is stored. That is, when the user inputs a time shift command or the image display device is turned on and the time shift is started, the controller 110 controls to store the start position of the time shift in the memory.

In addition, the memory 111 may store a virtual screen in the form of a bitmap that can be expressed in software such as an operating system and the display unit 170.

The tuner 120 converts the radio signal transmitted through the antenna into an IF signal according to the analysis information of the remote control code selected by the user, and transmits the radio signal to the demux 130.

The demux 130 receives the transport signal sequence transmitted from the tuner and performs demultiplexing. Here, the demultiplexing means detecting a PID number and dividing it into an image signal sequence, an audio signal sequence, and an additional information signal sequence.

The decoder 140 includes an audio decoder and an image decoder, and the audio decoder expands the audio signal string compressed by the MPEG and outputs the audio signal through the D / A converter to the speaker. The image decoder extends the image signal sequence compressed by the MPEG and outputs the image signal sequence to the video signal processor 160.

The video signal processor 160 converts the TP data transmitted from the decoder into image data and transmits the image data to the video output unit.

The video output unit 160 corrects the image data so that the image data transmitted from the image signal processing unit is displayed to match the display unit 170. Although not shown in the drawing, a Color Space Converter (CSC) converts an input image signal into an YPbPr or RGB color signal, and a GUI is provided through a LUT (Look Up Table) to display an accurate color of the color signal converted through the CSC. Properly displayed OSDs are overlaid in the graphical OSD and finally include a D / A converter that converts digital signals to analog signals.

When the TP controller 180 receives a playback command of the time-shifted data from the controller 110, the TP controller 180 receives the data stored in the HDD 200 through the IDE unit 190 and transmits the data to the controller.

The IDE unit 190 is an interface that allows the TP control unit to control the HDD.

The HDD 200 stores data transmitted from the IDE unit 190.

Hereinafter, the operation of the DVR configured as described above will be described.

The remote control code selected by the user is transmitted to the control unit 110 via the IR receiver 100, and the control unit 110 operates a device corresponding to the remote control code. For example, if the remote control code interpretation information is a channel change request command, the tuner 120 is adjusted, and then the TV frequency is tuned to catch the TV signal.

In this way, the input TV signal is converted into a TP signal while passing through the decoder 130 and transmitted to the video signal processor 150. The video signal processor 150 converts the TP signal into image data to output a video output unit ( It transmits to the display unit 170 through the 160.

In addition, when the user issues a recording command, the time shift start position stored in the memory 111 may be identified to record from the corresponding position. Accordingly, the broadcast signal from the time shifted until the current recording command is issued is stored in the HDD 200.

If you want to record the channel you are currently watching, if you are watching from the beginning without changing the channel while watching the current program, the controller 110 will start the program and shift the time so that you can record from the beginning of the program. When the channel is changed during watching, that is, when watching from the middle of the broadcast, the recording starts from the position where the time shift has started, that is, the channel has changed. do. The same works if the external input signal is changed as well as the channel change.

3 is a flowchart illustrating a recording control method according to an embodiment of the present invention.

First, if a time shift is requested, the time shift start point is stored (S10), and then time shift is started (S20). That is, the broadcast signal received while buffering the storage device such as HDD or memory is stored.

While performing the time shift, it is determined whether there is a change in broadcast information such as a source, a channel, or an EPG (S30). The source refers to an external input signal, and the channel refers to over-the-air or cable broadcasts received through the tuner.

If the check result shows that the broadcast information of the channel or EPG is changed, the process returns to the step of storing the time shift start point (S10) and proceeds to the procedure. If the check result does not change the channel or broadcast information, the recording command If the recording command is not input (S40), and if the recording command is not input continues to perform a time shift (S20), and if the recording command is input, whether or not to record the entire program (S50).

When it is determined that the entire program is recorded as a result of the checking, the apparatus moves to the time shift start position (S60) and starts recording (S70). When it is determined that the entire program is not recorded, recording starts simultaneously with the recording command (S70). ).

Even if the channel is changed during the time shift through the above procedure, if the recording command is input by displaying the changed position, the recording can be started from the changed time point.

4 is a diagram illustrating a recording section when a channel is changed and when it is not according to an embodiment of the present invention.

When viewing the same channel from the beginning as shown in FIG. 4A, recording can be started retroactively from the current progress position where the recording command is input to the position stored as a time shift. If the same channel is watched from the beginning and there is no change in the channel, when a new program starts, there is a change in EPG information. Therefore, the time shift start position is stored at the position where the program starts. Therefore, by recording from the time shift start position, it is possible to record the entire current program from the beginning.

As shown in FIG. 4B, when a channel is changed during broadcasting, when a recording command is input, recording may be started from a position at which a time shift is started, that is, when the channel is changed. Since the time shift start position is already stored and marked as described above, the time shift start position can be easily found and recording can be started from the point where the channel is changed without any user's manipulation.

4 (C) shows the case where there is no EPG information. At this time, since the start position of the program to be recorded is not known, recording starts from the position where the channel is changed regardless of the start position of the program.

As described above, when the channel is changed or the time shift is newly started, the user can easily record the entire program to be recorded in the recording command.

As described above, according to the present invention, when the channel change or broadcast information change occurs to know the beginning of the current broadcast, the entire program is recorded when the viewer wants to record the current program by storing the position information of the time shift. There is an effect that can reduce the time required.

In addition, according to the present invention, the user can record the entire program to be recorded at the moment with a simple key operation. If you continue to watch the same channel, you can start recording from the beginning of the current viewing program, if the channel is changed can start recording from the changed time.

In addition, according to the present invention, since the search time of the recording start position is reduced, the time required for preparation for recording is shortened, and the convenience of the user is increased since the viewer does not have to remember the channel change or the start time of the program currently being broadcast. There is.

Claims (9)

A storage unit for storing a broadcast signal input from an external device, a video signal processor for format converting the broadcast signal stored in the input signal or the storage unit so as to be displayed, and a display unit for displaying an output signal from the video signal processor. In the video display device comprising: And a controller configured to control a time shift start position to be stored in the memory unit and to record a time shift start position pre-stored in the memory to record from the corresponding position when a recording command is input from the outside. Recording control apparatus for video display equipment. The apparatus of claim 1, wherein the controller controls the time shift start position to be stored again in the memory unit when the channel is changed during the time shift or when the broadcasting information is changed. . The apparatus of claim 1, wherein the controller determines a time shift start position by referring to EPG information in a received broadcast signal. The image of claim 1, wherein the controller records the program to be recorded from the beginning when there is no change of channel or EPG information during time shift, and records from the changed time point when the change is made. Recording controller of display equipment. In the recording control method of a video display device equipped with a time shift function, Storing a time shift start position when a time shift command is input; And And starting recording from the start position of the time shift. The method of claim 5, wherein the starting of the recording from the start position of the time shift comprises: checking whether the channel or the broadcasting information is changed during the time shift, and recording is started from the changed time when the checking result is changed. The recording control method of the video display, characterized in that it further comprises the step. 7. The method of claim 6, wherein if the channel or broadcast information is not changed, recording is performed from the start of a program to be recorded. 6. The method of claim 5, wherein starting recording from the start position of the time shift comprises: checking whether to record the entire program; And if the entire program is recorded as a result of the determination, moving to the time shift start position to start recording, and if not recording the entire program, starting the recording at the time when the recording command is input. How to record. In the recording control method in a video display device equipped with a time shift function, Storing a time shift start position when a time shift command is input; Starting a time shift according to the time shift command; Checking whether a channel or broadcast information is changed during the time shift; Storing the time shift start position again when the channel or broadcast information is changed in the result of the checking, and continuously performing time shift when the channel or broadcast information is not changed; And And recording by moving to a time shift start position according to a recording command after checking whether the channel or broadcast information has been changed.

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