KR100885568B1 - Method and apparatus for recording of image display device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video display device. In particular, in a video display device having a storage function of an analog broadcast signal, the video display device can selectively control the storage of a non-signal during time shift or recording at the request of a user. The present invention relates to a recording control apparatus and method.

That is, the present invention determines whether there is a corresponding broadcast signal selected by the user during time shift or recording at the request of the user. If the corresponding broadcast signal does not exist, the present invention pauses the time shift or recording, and if a valid signal is input, It is possible to resume recording or time shift by generating a Restart or Resume event.

Therefore, the recording control apparatus and method of the image display device according to the present invention can eliminate the inconvenience that the user has to manually control the storage of no signal manually, and utilizes the storage device efficiently because no signal section is recorded. The user's satisfaction can be improved by not having to watch the signal-free section during playback of the stored recording.

Recording, time shift, no signal, restart, resume

Description

Recording control device and method for an image display device {Method and apparatus for recording of image display device}

1 is a block diagram showing the configuration of a recording control apparatus of a video display device according to the present invention;

2 is a diagram illustrating a signal processing process when another user inputs a channel switch or input switch command according to an exemplary embodiment of the present invention.

3 is a flowchart for explaining step by step a recording control method of an image display device according to the present invention;

<Explanation of symbols for the main parts of the drawings>

10: tuner part 12: main tuner

14: Auxiliary tuner 16: External signal input

18: analog decoder 20: image processing unit

22: display unit 24: key input unit

26: main controller 28: DVR unit

30: analog decoder 32: MPEG encoder

34: storage 36: MPEG decoder

38: DVR control unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video display device. In particular, in a video display device having a storage function of an analog broadcast signal, the video display device can selectively control the storage of a non-signal during time shift or recording at the request of a user. The present invention relates to a recording control apparatus and method.

 Generally, a TV is included in a video display device, and such TV is tuned to a demodulated broadcast signal according to a channel selected by a user among broadcast signals transmitted from a broadcasting station, and separated into a voice and a video, and then processed through a corresponding voice and image processing. And a video device output through a speaker.

Such TVs have a function of storing a video in real time using a digital video recorder (DVR) while the user is watching a broadcast and playing the video at a desired time. It has the same function as (video tape recorder), but instead of tape, you can record a program of several tens of hours using a large hard disk. And because the program can be recorded in real time, DVR users can enjoy the program except commercial by using pause and rewind on the program being broadcast, and DVR selects dozens of programs. You can also record for later viewing.

In addition, the user can move to the current broadcast scene while watching the scene of the previous broadcast instead of the current broadcast by playing the disc buffer simultaneously while recording, and play a time shift function that enables any trick play on the recorded part. Also provides.

However, in the PVR system according to the prior art, there is a no-signal section in which no signal is input for a while during channel change or input switching at the time shift function or recording at the request of the user. By continuing to perform the problem that the user does not want the section is also stored in the storage medium.

In addition, since unnecessary portions such as the no-signal period are stored in the storage medium, the user occupies the capacity of the storage medium, and there is an inconvenience in that the user must manually move the no-signal period even when the stored recording is to be played back.

The present invention has been made to solve such a problem, and when the user inputs a time shift or recording when a no-signal input section occurs, the time shift or recording is stopped and a time shift occurs when a valid input signal is received. Or to allow recording to be resumed.

In addition, it is another object to efficiently use the capacity of the storage medium by selectively controlling the time shift or recording for the non-signal period.

An apparatus for controlling recording of an image display apparatus according to the present invention for achieving the above object includes a key input unit for inputting a user command such as channel selection, time shift and recording, in an image display apparatus having a tuner and an external signal input unit. When the user inputs a recording or time shift command through the key input unit, time shift or recording pause of the corresponding broadcast signal is performed according to the presence or absence of a broadcast signal selected by the user among the broadcast signals input through the tuner and the external signal input unit. And a DVR unit for selectively controlling the main control unit and a DVR unit for storing the broadcast signal selected by the user through the key input unit according to the control signal of the main control unit.

Preferably, the DVR unit includes an analog decoder for performing format conversion and conversion into a digital signal of the broadcast signal input through the signal input unit, an MPEG encoder for converting the broadcast signal decoded through the analog decoder into a form of storage capable; A storage unit for storing a program encoded through the MPEG encoder, an MPEG decoder for restoring a corresponding program stored in the storage unit when a user inputs a playback command through the key input unit, and a control signal of the main control unit It is characterized by including a DVR control unit for controlling the path to the storage of the broadcast signal input through the signal input unit and the reproduction of the program stored in the storage unit.

More preferably, when the user inputs a channel switching or input switching command through the key input unit, the main control unit outputs a corresponding control signal to the DVR unit so that recording and time shift are paused.

More preferably, if a valid signal is input during a time shift or recording pause of a corresponding program selected by a user according to a control signal of the main control unit, the DVR controller may restart or restart the program according to whether the input format of the corresponding signal changes. Resume) It is a feature that generates an event.

More preferably, when there is a change in the input format of the corresponding input signal, the DVR controller deletes the time shifted data stored before the time shift pause and newly performs a time shift from the time when a valid signal is input or the recording date and time. It has a feature of generating a restart event to generate a file of recorded recordings before stopping and to perform a new recording from the time when a valid signal is input.

More preferably, the DVR controller generates a resume event to continuously store in the recording stored before the time shift or recording is paused when there is no change in the input format of the corresponding input signal.

According to another aspect of the present invention, there is provided a recording control method for a video display device, the method comprising: determining whether a user wants to time-shift or record a video, and the user controls the recording. If the user wants to time-shift or record, storing the program selected by the user in the storage unit, and progressing or pausing the time-shift or recording according to whether there is an input signal of the program during storage of the program selected by the user. It is characterized in that it comprises a step of selectively controlling as possible.

Preferably, the step of selectively controlling the time shift or the recording of the corresponding program to be progressed or paused according to the presence of the input signal determines whether the corresponding broadcast signal is input during the time shift or recording of the corresponding program selected by the user. And continuing the time shift or recording if the input signal exists as a result of the determination, and pausing the time shift or recording until a valid signal is input if the input signal does not exist; When a valid signal is input during a time shift or recording pause, a corresponding event is generated according to a change in an input format, and the time shift or recording is restarted.

More preferably, the resuming of the time shift or recording may include determining whether an input format is changed when a valid signal is input during the time shift or recording pause, and restarting when the format of the input signal is changed as a result of the determination. Generating a time shift or recording by generating an event, and generating a resume event to recount a time shift or recording when there is no change in the format of the input signal as a result of the determination. .

Preferably, in the resuming of the time shift or recording by generating the restart event, the time shift data stored in the storage unit is deleted before the time shift is paused, and the time shift is newly started from a time when a valid signal is input. It is a step of generating a program file stored in the storage unit before the recording pause and resuming the recording from the time when a valid signal is input.

More preferably, the step of resuming the time shift or recording by generating the resume event may be performed by continuously storing in the recording data stored in the storage unit before the time shift or recording pause, when the valid signal is input. (Recording time) is the step to update.

Hereinafter, an apparatus and method for controlling recording of an image display device according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a configuration of an apparatus for controlling recording of an image display apparatus according to the present invention, FIG. 2 is a view illustrating a signal processing process when another user inputs a channel switching or input switching command according to an embodiment of the present invention. 3 is a flowchart illustrating step by step a recording control method of an image display device according to the present invention.

As shown in FIG. 1, the apparatus for controlling recording according to the present invention includes a tuner unit 10 for tuning a broadcast signal desired by a user among broadcast signals received through an antenna, and various external inputs such as a settop box and a DVD player. An external signal input unit 16 for inputting a signal through a device, and an analog decoder 18 for decoding a broadcast signal selected by a user among broadcast signals input through the tuner unit 10 and the external signal input unit 16. And an image processor 20 for signal processing to display the broadcast signal decoded by the analog decoder 18 in a video form, and the image signal processed through the image processor 22 to each predetermined region. A display unit 22 for displaying, a key input unit 24 for inputting a channel selection, a time shift (T / S), and a recording command by the user, and a user inputting the key When a recording or time shift command is input through 24, recording of the corresponding broadcast signal according to the presence or absence of an input signal of the broadcast signal selected by the user among the broadcast signals input through the tuner 10 and the external signal input unit 16. Alternatively, the main controller 26 selectively controls the recording pause, and the DVR unit 28 for storing the broadcast signal selected by the user through the key input unit 24 according to the control signal of the main controller 26. It is configured to include.

The tuner unit 10 may include a plurality of tuners. In an embodiment of the present invention, a broadcast is displayed through a main screen of the display unit 22 to realize a PIP function of simultaneously displaying a main screen and a sub-screen. A main tuner 12 for tuning signals and an auxiliary tuner 14 for tuning broadcast signals displayed through the sub-screen of the display unit 22.

In addition, when the user inputs a time shift or recording command through the key input unit 24, the DVR unit 28 broadcasts a user-selected broadcast signal input through the tuner unit 10 and the external signal input unit 16. An analog decoder 30 for decoding a signal, an MPEG encoder 32 for converting a broadcast signal decoded by the analog decoder 30 into a form of an MPEG that can be stored, and a broadcast signal encoded through the MPEG encoder 32. When the user inputs a playback command through the storage unit 34 and the key input unit 24, the original signal of the program stored in the storage unit 34 is uncompressed. The MPEG decoder 36 which restores the form and the broadcast signal selected by the user according to the control signal of the main controller 26 and the reproduction of the program stored in the storage 34 may be performed. It is configured to include the DVR control unit 38 that controls the path.

The operation of the recording control device of the video display device according to the present invention configured as described above is as follows.

First, when a user inputs a power-on command through the key input unit 24, the main control unit 26 receives the tuner unit 10 and the external signal input unit according to a user command input through the key input unit 24. A control signal is output to select a broadcast signal desired by the user from among broadcast signals input through 16.

The broadcast signal desired by the user is decoded through the analog decoder 18 among the broadcast signals input through the tuner 10 and the external signal input unit 16 according to the control signal of the main controller 26. The decoded broadcast signal is signal processed to output an image through the image processing unit 20 and then output through the display unit 22.

In addition, when a user inputs a time shift or recording command through the key input unit 24, the main control unit 26 outputs a control signal so that the broadcast signal selected by the user is stored in the storage unit 34.

Then, the DVR controller 38 controls the path so that the broadcast signal selected by the user can be stored in the storage 34 according to the control signal of the main controller 26. The analog decoder 30 decodes a broadcast signal selected by a user among broadcast signals input through the tuner 10 and the external signal input unit 16 according to a control signal of the DVR controller 38, and decodes the decoded broadcast. The signal is converted into an MPEG form that can be stored by the MPEG encoder 32 and then stored in the storage unit 34.

In addition, when the user inputs a playback command of the recordings stored in the storage unit 34, the main control unit 26 outputs a control signal to the DVR controller 38 to play the recordings desired by the user.

Then, the DVR controller 38 controls the path to reproduce the recording selected by the user, and the MPEG decoder 36 is stored in the storage 34 according to the control signal of the DVR controller 38. Among the recordings, the user-selected recordings are restored to the original uncompressed signal form, and the restored recordings are signal-processed by the image processing unit 20 and then displayed by the display unit 22.

Meanwhile, there is a case where an input signal does not exist momentarily during time shift or recording progression according to a user's request.

In this case, the user inputs a channel switching or input switching command, and the input format is changed.

First, when a user inputs a channel switching or input switching command through the key input unit 24, the main control unit 26 outputs a control signal to the DVR controller 26 so that time shift or recording is paused. do. Then, the DVR controller 26 pauses the time shift or recording according to the control signal of the main controller 26, waits until the valid signal is input, and resumes the time shift or recording again when the valid signal is input. do.

That is, as shown in FIG. 2, when the user inputs a channel change or input change command through the key input unit 24 during time shift or recording, the main control unit 26 stops the time shift or recording. The control signal is output to the controller 38.

Then, the DVR controller 38 temporarily stops time shifting or recording according to the control signal of the main controller 26. In other words, when a user inputs a channel switching or input switching command during time shift or recording, the analog decoder 30 is instantaneously inputted with no signal. In order not to store the signal, the main control unit 26 is connected to the DVR controller. The command 38 outputs the status of the current input signal and a command to pause the time shift or recording.

The DVR controller 38 pauses time shift or recording according to the control signal of the main controller 26 and waits until a valid signal is input. In addition, the DVR controller 38 checks from time to time whether a valid signal is input during the standby, releases the time shift or recording pause when the valid signal is input, and controls to resume the time shift or recording.

In this case, when the DVR controller 38 determines the no signal by itself and pauses time shift or recording, it takes time to determine the no signal, so that the transition between channels is recorded during channel switching and input switching. Therefore, in order to prevent this, in the present invention, the main control unit 26 sends a storage stop command before the channel switching and the input switching, so that the transition period is not recorded during the switching.

In addition, when the input format and the input frequency is changed, if the synchronous signal is not detected by the DVR controller 38, the controller detects that there is no signal section without an input signal, and controls the storage 34 to pause the storage. The main control unit 26 transmits the corresponding signal to indicate that there is no input signal of the current time shift or broadcast signal being recorded. At this time, the main controller 26 resets the time shift or updates the recording time.

 That is, 50 Hz and 60 Hz signals may be mixed in an area using a PAL (Phase Alternating Line) method, and an input format of the tuner unit 10 and the external signal input unit 16 may be different. Therefore, when the input format is changed, the encoding parameters of the MPEG encoder 32 need to be reset according to the input format and the encoding is performed again. Therefore, if the input format is changed during time shift or recording, the main controller 26 notifies the main controller 26, pauses time shift or recording, waits until a valid signal is input, and then enters a time shift or recording. Resume.

In this case, unlike the channel switching, the DVR controller 38 determines whether the input format is changed, and if the format of the corresponding input signal is changed, the main controller 26 notifies the main signal. The main control section 26 resets the time shift time and the recording time.

That is, the DVR controller 38 performs a time shift function and controls a restart event to be generated when the input format is changed while storing the broadcast signal in the storage unit 34. In other words, when the input format is changed, the data stored before the input format is changed and the time shift starts anew from the time when a valid signal is input.

In addition, if the input format is changed while recording, the DVR controller 38 generates a file recorded up to that point in time and starts recording again from a time point at which a valid signal is input. At this time, the main controller 26 receives a signal indicating that the input format has been changed and updates the GUI to reset the time shift time or the recording time.

In addition, when there is no change in the input format, the DVR controller 38 generates a resume event and continues to store data up to a point before recording or time shift is paused. The unit 26 outputs the corresponding signal to update the time shift or the recording time.

In the recording control method of the image display apparatus according to the present invention having the storage unit 34 configured as described above, as shown in FIG. 3, first, it is determined whether the user inputs a power-on command (S100).

Subsequently, when the user inputs a power-on command, the determination result (S100) displays the received image (S102).

In operation S104, it is determined whether the user desires time shift (T / S) or recording.

Subsequently, when the user wishes to time-shift or record the determination result (S104), the broadcast signal selected by the user is stored in the storage unit 34 (S106).

In operation S108, it is determined whether there is an input signal of a corresponding time shift or a corresponding broadcast signal being recorded.

As a result of the determination (S108), if there is no input signal of the corresponding broadcast signal during time shift or recording, time shift or recording is paused (S110).

Next, it is determined whether there is a valid signal input (S112).

As a result of the determination (S112), if an input signal exists, the format of the currently input broadcast signal is detected (S114).

Next, it is determined whether there is a change in the detected input format (S116).

As a result of the determination (S116), if there is a change in the input format, a time restart or recording is restarted after generating a restart event (S118).

If there is no change in the input format as a result of the determination (S116), time shift or recording is resumed after generating a resume event (S120).

In operation S122, it is determined whether time shift or recording is terminated.

As a result of the determination (S122), if time shift or recording is finished, it is determined whether the user inputs a power-off command (S124).

Subsequently, the determination result (S124), if the user inputs a power off command, the process ends or otherwise returns to the step (S102) (S124).

In addition, if the determination result (S122), time shift or recording is not finished, the process returns to the step (S108).

On the other hand, if the determination result (S108), if the input signal is present, the step S122 is entered.

In addition, if the determination result (S104), the user does not wish to time-shift or recording, the process enters the step (S124).

As described above, the apparatus and method for controlling recording of an image display device according to the present invention have the following effects.

First, if a signal-free period occurs due to format change or channel change of input signal while user inputs time shift or recording command and saves the corresponding input signal, the user pauses the recording and manually The inconvenience of having to control the storage can be eliminated.

Second, since no signal section is recorded, there is an effect that the storage device can be efficiently used.

Third, by selectively controlling the storage of no signal during time shift or recording, the user does not have to watch the no signal section during playback of the stored recording, thereby improving user satisfaction.

Claims (11)

A tuner unit which tunes a broadcast signal received through an antenna; An external signal input unit for receiving a signal through an external device; A key input unit for receiving a request command from a user; According to the recording or time shift command inputted through the key input unit, the control unit detects a no-signal period during the storage of a signal input through the tuner or an external signal input unit and controls to pause the storage until a valid signal is input. Main control unit; And, DVR, which resumes time shift or recording by generating a resume event or restart event according to the input format of the valid signal when an actual valid signal is input during the storage pause according to the control signal of the main controller. Recording control apparatus for a video display device, characterized in that it comprises a. The method of claim 1, The DVR unit converts the broadcast signal inputted through the signal input unit and converts the digital signal into a digital signal, an MPEG encoder for converting the broadcast signal decoded through the analog decoder into a form of a storage MPEG, and the MPEG A storage unit for storing a program encoded through an encoder, an MPEG decoder for restoring a corresponding program stored in the storage unit when a user inputs a playback command through the key input unit, and the signal according to a control signal of the main control unit; And a DVR controller configured to control a path for storing a broadcast signal input through an input unit and reproducing a program stored in the storage unit. The method of claim 1, And the non-signal period is an overtool period when a channel switching or input switching command is input through the key input unit. delete The method of claim 1, The DVR unit generates a restart event when there is a change in the input format of the input valid signal, deletes the time shifted data stored before the time shift pause, and starts a new time from the time when a valid signal is input. The recording control device of the video display device, characterized in that for performing a shift or generating a file of the recording stored before the recording pause, and newly recording from the time when a valid signal is input. The method of claim 1, The DVR unit generates a resume event when there is no change in the input format of the corresponding input signal, and continuously stores the data until the time shift or recording is paused. Recording control device. Storing a corresponding program selected by a user when a time shift or recording command is input from the outside; Detecting a no-signal period while storing the program; Pausing the time shift or recording when a signal-free period is detected while storing the program; Determining whether an input format change of the valid signal occurs when a valid signal is input during the time shift or recording pause; And, And resuming time shift or recording by generating a resume event or a restart event according to whether the input format change occurs. delete The method of claim 7, wherein Re-counting the time shift or recording If a change occurs in the input format of the valid signal, generating a restart event to resume time shifting or recording; And resuming time shift or recording by generating a resume event if there is no change in the input format of the valid signal. The method of claim 9, Generating the restart event to re-time the time shift or recording; Deletes the time shift data stored before the time shift pause point and starts a new time shift from a time point at which a valid signal is input; And generating a program file of the data stored before the recording pause time and starting a new recording from a time when a valid signal is input. The method of claim 9, Generating the resume event and resuming time shift or recording may include And when the valid signal is input, continuously storing the stored recording data until the time shift or recording pause time and updating a time shift time or a recording time.

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