KR19990050596A - Commercial avoidance audit control device of multi-screen television - Google Patents

Abstract

According to the present invention, when a reproduction state of a commercial is detected in a reproduction state through a main screen of a predetermined broadcasting channel in a multi-screen television, the broadcasting channel is switched to the reproduction of a sub-screen, and when the end of the commercial is detected again, Provided is a commercial avoidance watching control apparatus for a multi-screen television that enables the user to return to the playback state of the main screen.

To this end, the present invention is a multi-screen television that can simultaneously reproduce television broadcast signals of multiple broadcast channels through a plurality of tuners, when it is determined that the video signal reproduced on the main screen is a commercial running state, When the video signal of the main screen to be reproduced is signaled and reproduced as a sub-screen and continuously detects whether or not the commercial is executed, the broadcast signal is again processed and reproduced as the main screen to be reproduced. To help.

Description

Commercial avoidance audit control device of multi-screen television

The present invention relates to an advertisement avoidance viewing control apparatus for a multi-screen television, and more particularly, in a multi-screen television capable of simultaneously playing back images of a plurality of broadcast channels simultaneously tuned by a plurality of tuners through a main / sub picture. When the reproduction of the commercial is detected for the broadcast program of the predetermined broadcast channel played on the main screen, the multi-screen television is switched to the sub-screen playback state so that the return to the playback state of the main screen can be returned after the commercial is finished. It relates to a commercial avoidance watching control device of.

As is well known, in general television, only a single channel is tuned through a single tuner among a plurality of channels transmitted from a plurality of television stations, so that the video / audio can be reproduced through a CRT screen and a speaker through video / audio processing. Bars such as a single channel television and playback function allow only one channel to be tuned and reproduced, so that the broadcast content of the other channel cannot be easily grasped in the reproduction state of one channel.

In view of this point, at present, a plurality of broadcast channels are tuned through a plurality of tuners, and the broadcast signal of one channel among the tuned broadcast channels is used as a playback signal on a main screen having a normal screen dimension. Simultaneous reproduction of the main / sub picture from the CRT picture by allocating and assigning the broadcast signal of the other channel as a reproduction signal of a sub picture having a relatively small picture dimension with respect to the main picture. PIP (Picture In Picture) playback function has been developed and adopted to allow simultaneous viewing of multiple channels through the PIP playback function. According to this PIP playback function, a plurality of sub-screens are formed on a single main screen to broadcast at least three or more broadcasts. Simultaneous playback of channels is possible.

On the other hand, the broadcasting station that transmits a plurality of television broadcast signals through the advertising broadcast in the middle of each separately organized main broadcast program to provide the specifications and to provide the latest product information on the viewer's bar, such advertising In the state of executing a broadcast, a display subtitle signal for indicating a program name for a main broadcast program is included in a video signal and transmitted on a predetermined screen area.

However, in such a multi-screen television, when a broadcast program of a predetermined broadcast channel is played through the main screen and the contents of the broadcast program correspond to the commercial broadcast, and the user does not want to watch the commercial state, the playback channel through the main screen is displayed. There is an inconvenience in that repetitive key operation should be preceded even when switching to a sub-screen and reproducing a broadcast channel for performing a commercial on the sub-screen in order to monitor the end state of the commercial.

Accordingly, the present invention has been made in view of the above circumstances, and when a reproduction state of a commercial is detected in a reproduction state through a main screen of a predetermined broadcast channel in a multi-screen television, the broadcast channel is switched to reproduction of a sub-screen. It is an object of the present invention to provide a commercial avoidance watching control apparatus for a multi-screen television that enables the user to return to the playback state of the main screen once the commercial is terminated.

According to the commercial avoidance watching control apparatus for a multi-screen television according to the present invention for achieving the above object, the first and second tuning means for simultaneously tuning a plurality of broadcast channels in the multi-screen playback mode, and the first And multi-screen mode switching means for providing an optional signal path for video processing of multiple broadcast channels tuned by the second channel means as a reproduction target of the main / sub-screen, respectively. First and second image processing means for processing and outputting image signals according to the main and sub-screens, which are applied as reconstruction targets of the main screen and sub-screens, through the first and second image processing means, respectively. Multi-screen synthesis / output means for synthesizing and outputting video signals according to the processed main / sub picture, and images from the first image processing means according to the avoidance viewing mode of commercial broadcasting. Is switched to a video or selection state for the second image processing means in the selected state, and whether the commercial is executed in the video signal through the switch means by execution of the avoidance viewing mode of the commercial; The multi-screen mode switching means when the commercial detection means for generating the advertisement detection signal and the video signal from the first image processing means are detected as the execution state of the commercial by the commercial detection means. By switching the playback path of the main / sub picture for the main screen and the video signal of the main screen reproduction target is applied to the second image processing means to perform the image processing as a sub picture, and switching the switching means, the commercial If the detection means does not detect whether the commercial is executed, the first image processing means again serves as the main screen. Provided is a commercial avoidance watching control apparatus for a multi-screen television, comprising control means for switching a playback path of a main / sub-screen to the multi-screen mode switching means to enable image processing.

According to the present invention configured as described above, in a multi-screen television that can simultaneously reproduce television broadcast signals of a plurality of broadcast channels through a plurality of tuners through the main / sub-screen, the video signal reproduced on the main screen is a commercial execution state If it is determined that the video signal of the main picture reproduction target is signal-processed and reproduced as a sub-screen, and continuously detects whether or not the commercial is executed, when the commercial is terminated, the broadcast signal is again used as the playback target of the main screen. It can be processed and played back.

1 is a block diagram showing the configuration of a commercial avoidance watching control apparatus for a multi-screen television according to the present invention;

2 is a block diagram showing a detailed configuration of the commercial detection unit shown in FIG. 1 according to a preferred embodiment of the present invention;

3 is a diagram illustrating an example in which a window area for detecting a commercial is displayed on the screen according to a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

2, 4: tuner, 6, 8: video IF section,

10: multi-screen mode switching unit, 12, 16: video amplifier,

14, 18: image processing unit, 20: multi-screen synthesis unit,

22: video output unit, 24: switch unit,

26: commercial detection unit, 28: function setting unit,

30: control unit, 32: ADC,

34,36: buffer memory, 38: data comparison

40: advertisement detection control unit.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the configuration of a commercial avoidance watching control apparatus for a multi-screen television according to the present invention. In the apparatus of the present invention, reference numerals 2 and 4 denote multi-screens from the control unit 30 to be described later. The first and the second channels which receive a plurality of channel tuning data according to the reproduction mode and simultaneously tune the corresponding broadcasting channels, and mix them with the local oscillation frequency signals generated by the respective channel tuning data and output them as intermediate frequency signals. 2 shows a tuner, and 6 and 8 show the first and second video IF portions which perform intermediate frequency amplification processing of the television broadcast signal tuned through the first and second tuners 2 and 4, respectively.

Further, reference numeral 10 selectively controls the main / sub picture reproduction state on the two screens for the television broadcast signals of the multiple broadcast channels through the first and second video IF units 6 and 8 according to the multi picture reproduction mode. A multi-screen mode switching unit for providing a switching path for doing so.

In addition, reference numeral 12 denotes a first image amplifier for multi-stage signal amplification of the video signal according to the main screen of the two screens through the multi-screen mode switching unit 10 up to an amplification level capable of image signal processing, 14 is The first image processing unit divides the signal-amplified video signal into a luminance signal and a color signal, performs digital data compression through luminance adjustment and color demodulation, and processes the image signal so that the entire image can be reproduced on the main screen. .

In addition, reference numeral 16 denotes a second image amplifier which amplifies the video signal according to the sub-screen among the two screens through the multi-screen mode switching unit 10 up to an amplification level capable of processing the video signal in multiple stages, and 18 denotes the above. After the video signal according to the multi-stage signal amplification process is divided into the luminance signal and the color signal, the luminance signal and the color demodulation process are performed, and the luminance signal and the color signal are processed by the first image processor 14. A second image processing unit which performs digital signal processing so as to be synchronized with a synchronization signal from a video signal according to a screen and performs the same data compression as the video of the main screen.

In addition, the reference numeral 20 performs image synthesis for reproducing the image signal according to the main screen and the sub-screen through the first and second image processing units 14 and 18 in the correct screen area on the two screens, The multi-screen synthesizing section which performs a signal synthesizing process for displaying the subtitle signal whose subtitle display position is converted by the subtitle position adjustment processing section 28 described later to the display position converted on the corresponding one screen, and 22 denotes the above. The image output unit is amplified and driven by an image signal through the screen synthesizing unit 20 to output two screens on the CRT screen.

Further, reference numeral 24 denotes that the video signal through the second video amplifying unit 16 is changed to the reproduction target when the program content of the video signal through the main screen is detected as commercial. A switch portion for forming a signal path that enables signal passage for detection is shown.

Reference numeral 26 denotes a display subtitle according to the program name of the main broadcast program which indicates whether the corresponding broadcast program content is commercial while receiving the video signal corresponding to the main screen or the sub screen through the switch unit 24. Represents a commercial detection unit to be identified through the detection of.

Here, as shown in FIG. 2, the commercial detection unit 26 includes an ADC 32 for sampling and digitally converting an image signal applied through the switch unit 24 according to a sampling clock CK, and the The first buffer memory 34 and the first buffer synchronously receive and store only the video signal corresponding to the window region 42 (see FIG. 3) on the video screen in the digitally converted video signal and delay the output for a predetermined period. A second buffer memory 36 for storing the video signals from the buffer memory 34 and delaying them for a predetermined period, and the first delayed video signals from the first buffer memory 34 and the second buffer. A comparator 38 for comparing the second delayed video signal data from the memory 36 and outputting a video comparison difference, and the data converter 32 and the first and second buffer memories 34, 36) enable signal EN and clock CK; The control unit processes the data processing operation for the video signal and receives the comparison difference value between the video signals from the data comparator 38 to determine whether the commercial signal is executed or terminated. It is configured to include an advertisement detection control unit 40 to apply to the control means (30).

In addition, the advertisement detection control unit 40 recognizes the syringe interval of the main screen image by the synchronization signal SY separated from the video signal according to the main screen from the first image processing unit 14, and the first and the first and the same. As shown in Fig. 3, the video buffering process for the second buffer memories 34 and 36 is between the syringes for the window area 42 corresponding to the position of the display subtitle indicating the program name for the main broadcast program of the commercial. Control to perform data processing synchronously.

Further, reference numeral 28 is a matrix button unit provided in a predetermined portion of the remote control remote control unit or the control panel of the main body, so that the mode switching operation for the multi-screen playback mode and the key operation for switching the multiple broadcast channels according to the multi-screen playback mode are performed. The function setting part to perform is shown.

Reference numeral 30 denotes that channel selection data for tuning a plurality of broadcast channels to the first and second tuners 2 and 4 by execution of the multi-screen playback mode by the function setting unit 28; In addition, as a control unit for controlling the playback switching state of the main / sub-screen to the multi-screen mode switching unit 10, the control unit 30 by the commercial detection unit 26 to the video signal of the main screen playback target When the execution state of the commercial for the commercial is detected, by switching the playback path of the main / sub-screen to the multi-screen mode switching unit 10 so that the video signal detected by the commercial is reproduced on the sub-screen, the switch When the switching state of the unit 24 is switched and the commercial detector 26 detects whether the commercial is to be terminated, the multi-channel mode switching unit 10 switches the mode to detect the end of the commercial. Video signal according to And controls so that a side can not be reproduced again.

Next, the operation of the present invention made as described above will be described in detail with reference to the accompanying drawings.

First, video signals corresponding to a plurality of broadcast channels tuned by the first and second tuners 2 and 4 in accordance with the multi-screen playback mode are first and second video IF units 6 and 8 by intermediate frequency amplification. Upon processing, the multi-screen mode switching unit 10 forms a signal path as a reproduction target of the main / sub-screen for the plurality of broadcast channels according to the mode switching control by the control unit 30, and the first and the second screens. The image amplifiers 12 and 16 perform signal amplification processing in multiple stages on the video signal of the main / sub picture reproduction target through the multi-screen mode switching unit 10, and the first and second image processing units 14, In 18), a video signal is processed according to the main / sub picture of the signal amplification.

Accordingly, the multi-screen synthesizing unit 20 synthesizes an image signal corresponding to the main / sub picture processed by the first and second image processing units 14 and 18 so as to be reproduced through the main / sub picture, respectively. The video output unit 22 is amplified and driven by the video synthesized video signal, and outputs the video of the main screen and the sub-screen on the CRT screen.

In this state, the ADC 32 of the commercial detection unit 26 digitally converts the video signal according to the main screen from the first video amplifier 12 that has passed through the switch unit 24, and the first buffer. The memory 34 is enabled by the advertisement detection control unit 40 in the window area 42 of the screen position where the display subtitles indicating the program name of the main broadcast program are displayed during the execution of commercials in the digitally converted video signal. Correspondingly, a write operation is performed to perform a buffering process for delayed output for a predetermined period, and the second buffer memory 36 also synchronizes the video signal corresponding to the window region 42 passing through the first buffer memory 34. FIG. It is recorded and stored as a delay, and the buffered output is delayed for a predetermined period.

At this time, the data comparison unit 38 compares the video signal of the window area 42 passing through the first buffer memory 34 with the delayed video signal passing through the second buffer memory 36 and compares the video signal. In accordance with the detection result of the detection result of the display subtitle indicating the program name for the main broadcast program of the commercial broadcast, and the advertisement detection control unit 40 according to the comparison result value from the data comparison unit 38 The advertisement detection signal DS detecting the execution state of the commercial is output.

Accordingly, the control unit 30 switches the multi-screen mode switching unit 10 in response to the advertisement detection signal DS from the commercial detection unit 26 to output the advertisement as a reproduction target of the main screen. The signal path for outputting the detection-side video signal of the broadcast as a reproduction object of the sub-screen and for reproducing the video signal according to the sub-screen as the main screen is formed, while the switching path of the switch section 24 The video signal according to the sub-screen is applied to the commercial detector 26, so that the second video amplification unit 16 is formed.

Next, when the control unit 30 determines that the advertisement detection signal DS detected by the commercial detection unit 26 has not been generated by detecting the end state of the commercial, the multi-screen mode. Mode switching control of the switching unit 10 so that the video signal terminated commercially reproduced through the sub-screen is output as the playback target of the main screen, and the video signal played on the main screen is reproduced through the sub-screen again Allow signal paths to be formed.

According to the present invention made as described above, when the main / sub-screen is reproduced for a plurality of broadcast channels in a multi-screen television, if the video content on the main screen is detected as commercials, the main and sub-screen playback When the channel is switched and the commercial is determined to be terminated, the channel can be returned to the playback state of the main screen, thereby automatically reproducing the commercial state without repetitive key operation by the user. The advantage of avoiding viewing of unwanted commercials is possible.

Claims (3)

First and second tuning means (2, 6) (4, 8) for simultaneously tuning a plurality of broadcast channels according to the multi-screen playback mode; Providing an optional signal path for image processing of a plurality of broadcast channels tuned by the first and second tuning means (2, 6) (4, 8), respectively, as a reproduction target of a main / sub picture; Multi-screen mode switching means (10), First and second image processing means (12) for processing the video signal according to the main screen and the sub-screen applied to the image of the main screen and sub-screen through the multi-screen mode switching means 10 to output the video signal processing, respectively (12, 14) (16,18), Multi-screen synthesizing / outputting means 20 and 22 for synthesizing and outputting an image signal according to a main / sub picture processed by the first and second image processing means 12 and 14 and 16 and 18; Switch means for switching switching from the first image processing means (12, 14) to the image application selection state to the second image processing means (16, 18) in accordance with the avoidance viewing mode of the commercial ( 24), The commercial detecting means 26 which detects whether the commercial is executed in the video signal through the switch means 24 by the execution of the avoidance viewing mode of the commercial and generates the advertisement detecting signal DS; When the video signal corresponding to the main screen from the first image processing means (12, 14) is detected by the commercial detecting means (26) in the execution state of the commercial, the main screen for the multi-screen mode switching means (10). Switching the playback means of the sub-screen so that the video signal of the main screen reproduction target is applied to the second image processing means 16, 18 to process the image as a sub-screen, and to switch the switching means 24. The multi-screen mode switching means (10) to enable the image processing as the main screen by the first image processing means (12, 14) again if the commercial detection means (26) is not detected. And control means (30) for switching the playback path of the main / sub picture with respect to the < RTI ID = 0.0 > According to claim 1, The commercial detection means 26 stores the data conversion unit 32 for digitally converting the video signal applied via the switch means 24, and the digitally converted video signal A first buffer memory 34 for delaying and outputting a predetermined time period, a second buffer memory 36 for storing and outputting a video signal from the first buffer memory 34 for a predetermined time period and the first buffer A comparison unit 38 for comparing the first delayed video signal from the memory 34 with the second delayed video signal data from the second buffer memory 36 and outputting a video comparison difference value; In addition to controlling the data processing operations of the data conversion means 32 and the first and second buffer memories 34 and 36, the comparison difference between the video signals from the data comparator 38 is applied to the Determined to execute or terminate And the detection signal (DS) is a commercial avoid viewing control apparatus for a television display, characterized in that configured to include advertising detection control unit 40 for applying to the control means (30). The first and second buffer memories of claim 2, wherein the advertisement detection control unit 40 forms a window region 42 in an image region corresponding to a display subtitle of a main broadcast program displayed on a screen during commercial broadcasting. And a delay output processing for the video signal for (34, 36) so as to be synchronized with the interval between the syringes for the display subtitles in the window area (42).