JP2003061110A - Broadcast signal adjustment apparatus and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance ease of viewing of a caption/character superimposed image. SOLUTION: The purpose is realized by a broadcast signal adjustment apparatus that is provided with a reception section 10 for receiving a broadcast signal, a separate section 22 for separating the caption/character superimposed signal from the broadcast signal, a color adjustment section that adjusts colors of characters and/or graphics configuring the caption/character superimposed signal, a transmittance coefficient adjustment section that adjusts the transmittance coefficient of the colors of the characters and/or graphics configuring the caption/character superimposed signal, a raster color adjustment section that adjusts the raster color of a display area on which the caption/character superimposed signal, and/or a raster color transmittance coefficient adjustment section that adjusts the transmittance coefficient of the raster color of the display area on which the caption/character superimposed signal is displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast signal adjusting apparatus and method for adjusting subtitles / superimposed characters, and more specifically, the colors of characters and / or graphics displayed in the display area of subtitles / superimposed characters and their colors The present invention relates to a broadcast signal adjusting apparatus and method for adjusting the transmission coefficient of the display area and adjusting the raster color of the display area and the transmission coefficient of the raster color.

[0002]

2. Description of the Related Art BS digital broadcasting is currently under the Ministry of Posts and Telecommunications
Notification and Radio Industry (ARIB, Association)
of Radio Industries and Businesses). In accordance with the standards of the above-mentioned standard, monomedia such as characters / graphics, still images, moving images and audio are transmitted by the data stream transmission method or the data carousel transmission method.

The receiving device receives the data transmitted by the data stream transmission system or the data carousel transmission system, and separates the data into individual encoded mono-media data. Then, the receiving device decodes the encoded mono-media data with a decoder to generate a subtitle plane for presenting a subtitle super and a character super (hereinafter referred to as subtitle / superimpose), a moving picture plane for presenting a video, and a still image. A still picture plane to be presented, a moving picture / still picture switching plane that controls switching between moving pictures and still pictures, and BML, which is a script language for broadcasting used in BS digital broadcasting
(Broadcast Markup Language) A character / graphic plane that presents data is generated, and the generated planes are combined by the combining unit.

The logical configuration 2 of the combined plane is shown in FIG.
As shown in, the subtitle plane 80, the character / graphic plane 81, the moving picture / still picture switching plane 82, the still picture plane 83, and the moving picture plane 84 are arranged from the highest level. The composite plane configured as described above is displayed by a display device or the like. It should be noted that the characters and / or the color of the characters displayed in the display area of the subtitle / superimpose and the transmission coefficient of the color,
A predetermined value is set on the sending side for the raster color and the raster color transmission coefficient of the display area.

[0005]

At this time, the subtitles / superimposed texts displayed on the display unit are moving images, still images, or BMs.
Due to the overlap with the L data, there is a problem that the visual easiness is reduced.

Therefore, the present invention has been proposed in view of the above-mentioned circumstances, and determines the color of a character and / or drawing displayed in the display area of a subtitle / superimposed character and the transmission coefficient of the color. It is an object of the present invention to provide a broadcast signal adjusting apparatus and method for selectively adjusting and also selectively adjusting the raster color and the transmission coefficient of the raster color of the display area.

[0007]

In order to solve the above-mentioned problems, a broadcast signal adjusting apparatus according to the present invention includes receiving means for receiving a broadcast signal and subtitles / characters from the broadcast signal received by the receiving means. Separation means for separating the super signal, and the characters and / or characters that compose the subtitle / character super signal
Or a color adjusting means for adjusting the color of the graphic, and the subtitle / character super signal adjusted by the color adjusting means is
It is combined with another broadcast signal separated by the separating means.

In this broadcast signal adjusting device, the color of the characters and / or graphics forming the caption / superimpose is adjusted.

In order to solve the above-mentioned problems, the broadcast signal adjusting apparatus according to the present invention separates a receiving means for receiving a broadcast signal and a separation means for separating a caption / character super signal from the broadcast signal received by the receiving means. Means and subtitles above
A transmission coefficient adjusting means for adjusting the transmission coefficient of the color of characters and / or graphics forming the character super signal, and the subtitle / character super signal adjusted by the transmission coefficient adjusting means is separated by the separating means. It is combined with the broadcast signal of.

In this broadcast signal adjusting apparatus, the transmission coefficient of the color of the characters and / or graphics forming the caption / superimpose is adjusted.

In order to solve the above-mentioned problems, a broadcasting signal adjusting apparatus according to the present invention separates a receiving means for receiving a broadcasting signal and a separation means for separating a caption / character super signal from the broadcasting signal received by the receiving means. Means and subtitles above
A raster color adjusting means for adjusting the raster color of the display area in which the character super signal is displayed, and the subtitle / character super signal adjusted by the raster color adjusting means and another broadcast signal separated by the separating means. To synthesize.

In this broadcast signal adjusting apparatus, the raster color of the display area in which the caption / superimpose is displayed is adjusted.

In order to solve the above-mentioned problems, a broadcasting signal adjusting apparatus according to the present invention separates a receiving means for receiving a broadcasting signal, and a separation means for separating a caption / character super signal from the broadcasting signal received by the receiving means. Means and subtitles above
And a raster color transmission coefficient adjusting means for adjusting the transmission coefficient of the raster color of the display area where the character super signal is displayed,
The subtitle / character super signal adjusted by the raster color transmission coefficient adjusting means is combined with another broadcast signal separated by the separating means.

In this broadcasting signal adjusting device, the transmission coefficient of the raster color of the display area in which the caption / superimpose is displayed is adjusted.

In order to solve the above-mentioned problems, a broadcasting signal adjusting apparatus according to the present invention separates a receiving means for receiving a broadcasting signal and a separation means for separating a caption / character super signal from the broadcasting signal received by the receiving means. Means and subtitles above
Color adjusting means for adjusting the color of the characters and / or graphics forming the character super signal, transmission coefficient adjusting means for adjusting the transmission coefficient of the color of the characters and / or graphics forming the subtitle / character super signal, Raster color adjusting means for adjusting the raster color of the display area in which the subtitle / superimposed signal is displayed, and raster color transmission coefficient adjustment means for adjusting the transmission coefficient of the raster color in the display area in which the subtitle / superimposed signal is displayed. And a selecting means for selecting one or a plurality of the color adjusting means, the transmission coefficient adjusting means, the raster color adjusting means or the raster color transmitting coefficient adjusting means, and the color adjusting means selected by the selecting means. The subtitle / character super signal adjusted by the transmission coefficient adjusting means, the raster color adjusting means or the raster color transmission coefficient adjusting means,
It is combined with another broadcast signal separated by the separating means.

In this broadcast signal adjusting apparatus, the color of characters and / or graphics forming the subtitle / superimpose, the transmission coefficient of the color, the raster color of the display area in which the subtitle / superimpose is displayed, or the transparency of the raster color is transmitted. Selectively adjust the coefficients.

In order to solve the above-mentioned problems, the broadcasting signal adjusting method according to the present invention receives a broadcasting signal, separates a caption / character super signal from the received broadcasting signal, and outputs the caption / character super signal. The color of the characters and / or graphics that make up is adjusted, and the above-mentioned subtitle / character super signal, in which the color of the characters and / or graphics is adjusted, is combined with another separated broadcast signal.

In this broadcasting signal adjusting method, the color of the character or / or the graphic forming the subtitle / superimposed character is adjusted.

In order to solve the above-mentioned problems, the broadcast signal adjusting method according to the present invention receives a broadcast signal, separates a caption / character super signal from the received broadcast signal, and outputs the caption / character super signal. The transmission coefficient of the color of the character and / or the figure which comprises it is adjusted, and the above-mentioned caption / character super signal which adjusted the transmission coefficient of the color of the character and / or figure is combined with another separated broadcasting signal.

In this broadcasting signal adjusting method, the transmission coefficient of the color of the characters and / or graphics forming the caption / superimposed character is adjusted.

In order to solve the above-mentioned problems, the broadcasting signal adjusting method according to the present invention receives a broadcasting signal, separates the caption / character super signal from the received broadcasting signal, and Adjust the raster color of the displayed display area and adjust the raster color of the display area.
The character super signal is combined with another separated broadcast signal.

In this broadcasting signal adjusting method, the raster color of the display area for displaying the subtitles / superimposed characters is adjusted.

In order to solve the above-mentioned problems, the broadcasting signal adjusting method according to the present invention receives a broadcasting signal, separates the caption / character super signal from the received broadcasting signal, and The transmission coefficient of the raster color of the display area to be displayed is adjusted, and the caption / character super signal having the adjusted transmission coefficient of the raster color of the display area is combined with another separated broadcast signal.

In this broadcasting signal adjusting method, the transmission coefficient of the raster color of the display area for displaying the caption / superimposed character is adjusted.

In order to solve the above-mentioned problems, the broadcasting signal adjusting method according to the present invention receives a broadcasting signal, separates a caption / character super signal from the received broadcasting signal, and separates the caption / character super signal. Adjustment of color of constituent characters and / or figures, adjustment of transmission coefficient of color of characters and / or figures composing the caption / character super signal, and raster of display area in which the caption / character super signal is displayed One or more are selected from the color adjustment and the adjustment of the transmission coefficient of the raster color of the display area in which the caption / character super signal is displayed, and the caption / character super signal adjusted by the above selection is separated. Combine with other broadcast signals.

In this broadcast signal adjusting method, the color of characters and / or graphics forming the subtitle / superimpose, the transmission coefficient of the color, the raster color of the display area in which the subtitle / superimpose is displayed, or the transparency of the raster color is transmitted. Selectively adjust the coefficients.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The present invention is applied to a receiving system 1 as shown in FIG. 1, for example.

As shown in FIG. 1, the receiving system 1 includes an antenna 10 for receiving a broadcast signal and a signal adjusting device 1 for demodulating and adjusting the broadcast signal received by the antenna 10.
1, a monitor 12 for displaying an image, and a signal conditioner 11
And a remote control unit 13 for remotely controlling the.

The antenna 10 is an LNB (Low Noise Bloc).
k) It has a down converter, for example, receives a high frequency signal transmitted from satellite broadcasting (BS, Broadcast Satellite), down-converts it to a predetermined frequency by the LNB, and supplies it to the signal conditioning apparatus 11.

The signal adjusting device 11 performs a predetermined process on the signal supplied from the antenna 10 and supplies, for example, a video signal to the monitor 12. The signal conditioner 11 also has a front panel on which a plurality of button switches for operation are arranged. The signal conditioning device 11 may be, for example, an IRD (In
integrated receiver decoder).

The remote control section 13 inputs an operation command to the signal adjusting device 11 by an infrared signal. That is,
When a predetermined operation is performed, the remote control unit 13 sends an infrared signal corresponding to the predetermined operation from the infrared transmission unit to the signal adjusting device 11.
Send to. The remote control unit 13 may remotely operate the signal adjusting device 11 with a signal other than infrared rays.

Here, the configuration of the signal adjusting device 11 will be described with reference to FIG.

The signal conditioner 11 includes an input terminal 20, a front end section 21, a demultiplexer section 22, a first RAM 23, an AV decoder section 24, and a second RA.
M25, NTSC encoder section 26, video output terminal 27, D / A conversion section 28, audio output terminal 29, control signal receiving section 30, control signal processing section 31, front operating section 32, and CPU 33. , ROM34 and the third R
AM35 and. The bus A is a host bus and the bus B is a serial bus.

A signal is supplied from the antenna 10 to the input terminal 20. Then, the input terminal 20 supplies a signal to the front end section 21. The front end unit 21 demodulates the supplied signal, corrects the error, performs A / D conversion, and then supplies the signal to the demultiplexer unit 22. The demultiplexer unit 22 stores the signal supplied from the front end unit 21 in the first RAM 23 as appropriate,
The video signal and the audio signal are divided into various signals such as an audio signal, a character super signal and a caption super signal, and the video signal and the audio signal are supplied to the AV decoder unit 24. The character super signal and the caption super signal are, for example, the first RAM.
23.

The AV decoder section 24 appropriately stores each signal supplied from the demultiplexer section 22 in the second RAM 25 and performs a decoding process. The AV decoder unit 24
For example, the decoded video signal is supplied to the NTSC encoder unit 26. The NTSC encoder unit 26 is an AV
The video signal supplied from the decoder unit 24 is transferred to the NTSC
It is converted into a luminance signal (Y) and a chroma signal (Cr, Cb) of the system. The NTSC encoder unit 26 converts the signal converted into each signal of the NTSC system, for example, D / A conversion into an analog signal, and supplies the analog signal to the video output terminal 27. Further, the AV decoder unit 24 supplies the decoded audio signal to the D / A conversion unit 28, for example. The D / A converter 28 converts the audio signal supplied from the AV decoder 24 into an analog audio signal and supplies it to the audio output terminal 29.

The control signal receiving section 30 receives an infrared signal from the remote control section 13. The control signal receiving unit 30
May receive a control signal other than infrared rays, and in that case, the remote control unit 13 transmits to the control signal receiving unit 30 a control signal of a standard suitable for the control signal receiving unit 30. The control signal receiving unit 30 receives the received signal from the control signal processing unit 31.
Supply to.

The front operation section 32 is provided with an operation button and a display section, generates a control signal by operating the operation button, and supplies the control signal to the control signal processing section 31. The front operation unit 32 can be operated in the same manner as the remote operation unit 13.

The control signal processing section 31 includes a control signal receiving section 3
0 or a control signal supplied from the front operation unit 32 is decoded, and the decoded control signal is transferred to the bus B.
Is supplied to the CPU 33 via. The CPU 33 controls and calculates the entire signal adjusting device 11, and manages and controls the timer. CPU 33 is a ROM via bus A
34 to the bus B from the control signal processing unit 31.
The ROM 34 according to a control signal supplied via
The program stored in is started and various processing is performed. The ROM 34 stores the contents of various programs and information such as character data when the above contents are displayed on the display unit of the front operation unit 32. Also, the third RAM
A storage unit 35 writes and reads information read from the ROM 34.

The CPU 33 fetches the subtitle super and the character super (hereinafter referred to as the subtitle / character super) stored in the first RAM 23 from the demultiplexer unit 22. Then, the CPU 33 activates the subtitle / character superimposing adjustment program stored in the ROM 34, and adjusts the subtitle / character superimposing. The CPU 33
Is the third RAM when subtitles and character superimpositions are loaded.
It is stored in 35 as appropriate.

Here, the adjustment of the subtitle / superimposition will be described with reference to the functional block diagram of FIG.

As shown in FIG. 3, the subtitle / superimposed character display setting storage unit (hereinafter referred to as display setting storage unit) 40 and the subtitle / superimposed character display adjustment unit (hereinafter referred to as display adjusting unit). 41) and a subtitle / character super decoder unit (hereinafter referred to as a decoder unit) 42.
And the subtitle / character superplane processing unit (hereinafter, referred to as subtitle plane processing unit) 43a. The display setting storage unit 40 stores, for example, the third RA.
The display adjustment unit 41 and the decoder unit 42 are stored in, for example, the ROM 34, and the subtitle plane processing unit 43 is a part of the processing performed by the AV decoder unit 24, for example.

The display adjustment unit 41 is a block having a mechanism for reading and writing specific data from the data stored in the display setting storage unit 40 described later, and the decoder unit 4
The data to be read and written is designated by the instruction from 2. The decoder unit 42 is a block that acquires subtitle / superimposed-character data from the display adjustment unit 41, performs necessary decoding processing, and presents it to the subtitle plane processing unit 43a. The subtitle plane processing unit 43a generates a subtitle plane and supplies it to the plane synthesis processing unit 44.

In addition to the subtitle planes, the plane synthesis processing unit 44 includes a video plane generated by the video plane processing unit 43b, a still image plane generated by the still image plane processing unit 43c, and a character / graphic plane processing unit. Four
The character / graphic plane generated by 3d is supplied. The plane composition processing unit 44 composes all the supplied planes and supplies them to the monitor 12.

Now, the storage state of the display setting storage section 40 will be described.

To adjust the subtitles / superimposes, the color of the characters forming the subtitles / superimposes, the transmission coefficient of the color of the above characters, and the color of the figure forming the subtitles / superimposes are adjusted. The adjustment of the transmission coefficient of the color of the figure, the adjustment of the raster color of the display area for displaying the subtitle / superimposed text, and the adjustment of the transmission coefficient of the raster color of the display area are performed. Note that the values of the character color, the figure color, and the raster color are, for example, CLUT (Color Lo) used in the signal adjusting device 11.
ok Up Table) is a color index for identifying a specific color or a value represented by αRGB or YCbCr. The CLUT is the second RAM 25 or the third R
It is assumed that it is stored in a memory such as AM 35 that the decoder unit 42 can read.

In the display setting storage section 40, a combination of characters and graphics forming a subtitle / superimposed character and a flag for enabling / disabling display settings for a display area for displaying the subtitle / superimposed character is stored. ing. It should be noted that, in the case of BS digital broadcasting, the characters and graphics forming the subtitles / superimposed characters are composed of four gradations of the foreground color, the front intermediate color, the back space color and the background color. Therefore, in the following, for example, a case of three gradations of the foreground color, the intermediate color, and the background color will be described.

In the display setting storage section 40, "effective flag 1" is set when the foreground color of the character of the subtitle / superimposed character is adjusted, "invalid flag 1" is set when it is not adjusted, and the color of the character is set. "Effective flag 2" when adjusting the value of the transmission coefficient of "no", and "invalid flag 2" when not adjusting
Of "valid flag 1" and "valid flag 2", "valid flag 1" and "invalid flag 2", "invalid flag 1" and "valid flag 2", and "invalid flag 1" and "invalid flag 2" As described above, the combination of the availability flags of the display settings is set and stored. Also, the display setting storage unit 4
Similarly, for 0, a combination of display enable / disable flags is set and stored for the intermediate color and background color of the character.

The display adjusting unit 41 selects one from each combination of the availability flags of the display settings of the foreground color, the intermediate color, and the background color stored in the display setting storage unit 40, and selects the subtitle / superimpose. Adjust the color of the characters and the transmission coefficient of that color. When a combination of "invalid flag 1" and "invalid flag 2" is selected from the usable / unusable flags of the display setting, the value set on the transmitting side is used without being changed.

Further, in the display setting storage section 40, "effective flag 1" is set when the foreground color of the figure of the subtitle / superimposed character is adjusted, "invalid flag 1" is set when it is not adjusted, and the figure is also set. If the value of the transmission coefficient of each color is adjusted, it is set as "effective flag 2", and if it is not adjusted, it is set as "invalid flag 2", "effective flag 1" and "effective flag 2",
A combination of usable / unusable flags of the display settings is set, such as “valid flag 1” and “invalid flag 2”, “invalid flag 1” and “valid flag 2”, and “invalid flag 1” and “invalid flag 2”. , Remembered. Further, in the display setting storage unit 40, similarly, a combination of display enable / disable flags is set and stored for the intermediate color and the background color of the graphic.

The display adjustment unit 41 selects one from each combination of the availability flags of the display settings of the foreground color, the intermediate color, and the background color stored in the display setting storage unit 40, and selects the subtitle / superimpose. Adjust the color of the figure and the transmission coefficient of the color. When a combination of "invalid flag 1" and "invalid flag 2" is selected from the usable / unusable flags of the display setting, the value set on the transmitting side is used without being changed.

In the display setting storage section 40, "valid flag 1" is set when the raster color of the display area for displaying the subtitle / superimposed text is adjusted, "invalid flag 1" is set when the raster color is not adjusted, and , "Effective flag 2" when the value of the transmission coefficient of the raster color is adjusted, and "ineffective flag 2" when the value is not adjusted, "effective flag 1", "effective flag 2", and "effective flag 1""Invalid flag 2",
A combination of usable / unusable flags of display setting is set and stored, such as “invalid flag 1” and “valid flag 2” and “invalid flag 1” and “invalid flag 2”.

The display adjusting unit 41 selects one from the combination of the flag of use of the display setting stored in the display setting storage unit 40, and displays the raster color for displaying the subtitle / superimposed character and the raster color. Adjust the transmission coefficient. If a combination of “invalid flag 1” and “invalid flag 2” is selected from the usable / unusable flags of the display setting,
Use the value set on the sending side without changing it.

Here, a specific example in which the display adjusting unit 41 adjusts the characters and graphics forming the subtitle / superimposed character and the display area for displaying the subtitle / superimposed character is shown in FIG.
Will be explained.

A subtitle / superimpose display setting adjustment screen GUI (graphical user interface) 50 for adjusting the subtitle / superimpose as shown in FIG. 4 is displayed on the monitor 12. In addition, subtitle / superimpose display setting adjustment screen GUI
Will be referred to as a subtitle / character super GUI hereinafter. The subtitle / text super GUI includes a character adjustment unit 60 that adjusts the color and transparency coefficient of characters, a graphic adjustment unit 61 that adjusts the color and transparency coefficient of graphics, and a raster color that adjusts the raster color and transparency coefficient of the display area. An adjustment unit 62, a preview display unit 63 that displays a preview of the adjusted result, and an adjustment execution / adjustment cancel button 6 that determines whether the adjustment is effective or cancelled.
4 and. The character adjustment unit 60 adjusts the foreground color, the intermediate color and the background color of the character and the transmission coefficient of the color. The character adjusting unit 60 will be described below.

When the check box of "all valid" is checked, it is possible to adjust the foreground color, the intermediate color and the background color of the subtitle / superimposed character, and the transmission coefficient of the color. If you do not check the “All Valid” checkbox, you will not be able to make adjustments.

By checking the "valid" check box of the foreground color, it is possible to adjust the foreground color of the subtitle / superimposed character. Mid color "effective"
The same applies to the check box and the “valid” check box of the background color.

If the check box of "effective transmission coefficient" of the foreground color is checked, it becomes possible to adjust the transmission coefficient of the color of the subtitle / superimposed character.
The same applies to the "valid transmission coefficient" check box for intermediate colors and the "valid transmission coefficient" check box for background colors.

It should be noted that the adjustment of the color of characters can be done by adjusting the red, green and blue
Although the adjustment is performed in B), the adjustment may be performed using other color data such as YCbCr. Moreover, although the adjustment range of the color of the character is supposed to be adjusted in 256 steps from 0 to 255,
Other than 256 steps may be used. Further, the color of characters may be adjusted by moving the scroll bar or by directly inputting a numerical value. Also, for example, "red",
The character color may be selected with a selection button such as "purple" and "orange". Further, although the setting of the transmission coefficient is adjusted by moving the scroll bar, it may be adjusted by a method other than the above.

The figure adjusting unit 61 adjusts the foreground color, the intermediate color and the background color of the figure and the transmission coefficient of the color. The graphic adjustment unit 61 will be described below.

When the check box of "all valid" is checked, it is possible to adjust the foreground color, the intermediate color and the background color of the figure of the subtitle / superimposed character, and the transmission coefficient of the color. If you do not check the “All Valid” checkbox, you will not be able to make adjustments.

By checking the "valid" check box of the foreground color, it is possible to adjust the foreground color of the figure of the subtitle / superimposed character. Mid color "effective"
The same applies to the check box and the “valid” check box of the background color.

If the check box of "effective transmission coefficient" of the foreground color is checked, it becomes possible to adjust the transmission coefficient of the color of the figure of the subtitle / superimposed character.
The same applies to the "valid transmission coefficient" check box for intermediate colors and the "valid transmission coefficient" check box for background colors.

The adjustment of the color of the figure can be done by adjusting the red, green and blue (RG
Although the adjustment is performed in B), the adjustment may be performed using other color data such as YCbCr. Moreover, although the adjustment range of the color of the figure is adjusted in 256 steps of 0 to 255,
Other than 256 steps may be used. Further, the color of the figure may be adjusted by moving the scroll bar or by directly inputting a numerical value. Also, for example, "red",
The color of the figure may be selected by using selection buttons such as "purple" and "orange". Further, although the setting of the transmission coefficient is adjusted by moving the scroll bar, it may be adjusted by a method other than the above.

The raster color adjusting section 62 adjusts the raster color of the display area and the transmission coefficient of the raster color. The raster color adjusting unit 62 will be described below.

When the check box of "Effective raster color" is checked, the raster color of the display area of the subtitle / superimposed text can be selected. If you check the checkbox of "Effective transmission coefficient" for raster color,
It is possible to adjust the transmission coefficient of the raster color in the display area of the character superimposition.

It should be noted that the raster color is selected by "black", "red", "green", etc. as shown in FIG.
You may adjust with other color data, such as Cr value. Further, the adjustment of the raster color may be performed by moving the scroll bar as shown in the character adjustment unit 60, or may be performed by directly inputting a numerical value. Further, although the setting of the transmission coefficient is adjusted by moving the scroll bar, it may be adjusted by a method other than the above.

Characters forming subtitles / superimposed characters and /
Alternatively, the result of adjusting the figure and the display area for displaying the subtitle / superimposed text is displayed on the preview display section 63. When actually displaying the preview display portion 63, the execution button of the adjustment execution / adjustment cancel button 64 is selected. On the other hand, when canceling the adjustment, the cancel button of the adjustment execution / adjustment cancel button 64 is selected.

When the execute button is selected, the decoder unit 4
2 and the subtitle plane processing unit 43a generates a subtitle plane and supplies it to the plane synthesis processing unit 44. At this time, the contents of the display setting storage unit 40 are also updated to the set value.

On the front panel of the remote control section 13 and / or the signal adjusting device 11, a button A for selecting the character adjusting section 60, a button B for selecting the graphic color adjusting section 61, and a button for selecting the raster color adjusting section. A button D that does not select C and the adjustment unit may be provided, or a button that switches the above buttons by a toggle operation may be provided.

Further, the subtitle / character super GUI 50 is
Other forms than the above may be used. For example, as shown in FIG. 5, the subtitle / character super GUI 51 includes a character background color adjusting unit 70 that adjusts the color of the character of the background color, and a raster color adjusting unit 71 that adjusts the raster color and the transmission coefficient of the display area. A preview display section 72 for displaying a preview of the adjusted result,
It is composed of an adjustment execution / adjustment cancel button 73 for determining whether the adjustment is effective or cancelled. The character background color adjustment unit 70 will be described below.

By checking the "all valid" check box, it is possible to adjust the background color of characters and the raster color and transparency coefficient of the display area. Character background color adjustment unit 7
By checking the “valid” check box of 0, the background color of the character and the transmission coefficient of the background color can be adjusted. Further, by checking the “valid” check box of the raster color adjusting unit 71, the raster color of the display area and the transmission coefficient of the raster color can be adjusted.

The preview display section 72 displays the result of adjusting the background color of the characters forming the subtitle / superimpose and / or the display area for displaying the subtitle / superimpose. When actually displaying the preview display section 72, the execution button of the adjustment execution / adjustment cancel button 73 is selected. On the other hand, when canceling the adjustment, the cancel button of the adjustment execution / adjustment cancel button 73 is selected.

When the execute button is selected, the decoder unit 4
2 and the subtitle plane processing unit 43a generates a subtitle plane and supplies it to the plane synthesis processing unit 44. At this time, the contents of the display setting storage unit 40 are also updated to the set value.

On the front panel of the remote control section 13 and / or the signal adjusting device 11, a button A for selecting the character background color adjusting section 70 and a button B for selecting the raster color adjusting section 71.
Also, a button C that does not select the character background color and the raster color may be provided, or a button that switches the above buttons by a toggle operation may be provided. Further, button D for selecting transparent as the transmission coefficient and button E for selecting translucent as the transmission coefficient
And a button F for selecting opacity as the transmission coefficient,
The button may be switched by a toggle operation when the character background color adjusting unit 70 or the raster color adjusting unit 71 is selected.

The signal conditioner 1 thus constructed is
By the program for adjusting subtitles / superimposed characters stored in the ROM 34, the color of characters and / or graphics forming the subtitles / superimposed characters and the color of graphics forming subtitles / superimposing characters and / or the transmission of the color are transmitted. Adjustment of the coefficient,
By selectively adjusting the raster color of the display area that displays subtitles / superimposes and adjusting the transmission coefficient of the raster color of the display area that displays subtitles / superimposes, you can change the display settings of subtitles / superimposes. Allows adjustments to be made.

[0077]

As described above in detail, in the broadcast signal adjusting apparatus according to the present invention, when the subtitle / superimpose is difficult to see due to the overlapping state with the background image, the characters and / or Alternatively, since the color of the figure can be adjusted, it is possible to make the display of the subtitle / superimposed text easier to see.

Further, in the broadcast signal adjusting apparatus according to the present invention, when the caption / superimpose is difficult to see due to the degree of overlap with the background image, the transmission coefficient of the color of the characters and / or graphics forming the subtitle / superimpose is set. Since it can be adjusted, it is possible to make the display of subtitles / superimposed text easier to see.

In the broadcast signal adjusting apparatus according to the present invention, the raster color of the display area for displaying the subtitle / superimpose can be adjusted when the subtitle / superimpose is difficult to see due to the degree of overlap with the background image. It is possible to make the display of subtitles / superimposed text easier to see.

Further, in the broadcast signal adjusting apparatus according to the present invention, when the caption / superimpose is difficult to see due to the overlap with the background image, the transmission coefficient of the raster color of the display area for displaying the subtitle / superimpose is adjusted. Because you can
It is possible to make the display of subtitles / superimposed text easier to see.

Further, in the broadcast signal adjusting apparatus according to the present invention, when the caption / superimpose is difficult to see due to the degree of overlap with the background image, the color of the characters and / or graphics forming the subtitle / superimpose, Since it is possible to selectively adjust the transmission coefficient, the raster color of the display area that displays subtitles / superimposed text, or the transmission coefficient of the above raster color,
It is possible to make the display of the superimposition easy to see.

As described above in detail, in the broadcast signal adjusting method according to the present invention, when the subtitle / superimpose is difficult to see due to the overlapping state with the background image, the characters and / or graphics forming the subtitle / superimpose are displayed. Since the color of can be adjusted, it is possible to make the display of subtitles / superimposed text easier to see.

Further, in the broadcast signal adjusting method according to the present invention, when the caption / superimpose is difficult to see due to the degree of overlap with the background image, the transmission coefficient of the color of the characters and / or graphics forming the subtitle / superimpose is set. Since it can be adjusted, it is possible to make the display of subtitles / superimposed text easier to see.

In the broadcast signal adjusting method according to the present invention, the raster color of the display area for displaying the subtitle / superimpose can be adjusted when the subtitle / superimpose is difficult to see due to the degree of overlap with the background image. It is possible to make the display of subtitles / superimposed text easier to see.

Further, in the broadcast signal adjusting method according to the present invention, when the caption / superimpose is difficult to see due to the overlap with the background image, the transmission coefficient of the raster color of the display area for displaying the subtitle / superimpose is adjusted. Because you can
It is possible to make the display of subtitles / superimposed text easier to see.

Further, in the broadcast signal adjusting method according to the present invention, when the caption / superimpose is difficult to see due to the degree of overlap with the background image, the color of the characters and / or graphics forming the subtitle / superimpose, Since it is possible to selectively adjust the transmission coefficient, the raster color of the display area that displays subtitles / superimposed text, or the transmission coefficient of the above raster color,
It is possible to make the display of the superimposition easy to see.

[Brief description of drawings]

FIG. 1 is a block diagram of a receiving system for receiving a broadcast signal to which the present invention is applied.

FIG. 2 is a block diagram of a signal conditioning apparatus to which the present invention is applied.

FIG. 3 is a functional block diagram for adjusting subtitles / superimposed characters by a signal adjusting device to which the present invention is applied.

FIG. 4 is a schematic diagram showing a GUI of a first example of a subtitle / superimpose display setting adjustment screen for adjusting subtitles / superimposes.

FIG. 5 is a schematic diagram showing a GUI of a second example of a subtitle / superimpose display setting adjustment screen for adjusting subtitles / superimposes.

FIG. 6 is a diagram showing a logical configuration when planes are combined.

[Explanation of symbols]

1 receiving system, 10 antennas, 11 signal adjusting device, 12 monitor, 13 remote control unit, 20 input terminal, 21 front end unit, 22 demultiplexer unit, 23 first RAM, 24 AV decoder unit, 25
Second RAM, 26 NTSC encoder section, 27
Video output terminal, 28 D / A conversion section, 29 audio output terminal, 30 control signal receiving section, 31 control signal processing section, 3
2 Front operation part, 33 CPU, 34 ROM, 3
5 Third RAM

Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 9/00 H04N 1/40 D 9/64 1/46 Z (72) Inventor Makiko Shimada 6 Kita-Shinagawa, Shinagawa-ku, Tokyo C-No. 7-35 Sony Corporation F-term (reference) 5C023 AA18 CA05 5C057 AA06 BA10 DA17 EA12 FC17 FD06 5C066 AA03 BA08 CA27 EA13 EB01 GA01 GA22 5C077 MP08 NP02 PP23 PP27 PP28 PP37 5C079 LA02 LA06 LA40 NA11 LB11 PA11 NA11 PA11

Claims (20)

[Claims] 1. A receiving means for receiving a broadcast signal, a separating means for separating a subtitle / superimposed signal from the broadcast signal received by the receiving means, and a character and / or a graphic forming the subtitle / superimposed signal. And a color adjusting unit that adjusts the color of the subtitle / character superimposing signal adjusted by the color adjusting unit, and is combined with another broadcast signal separated by the separating unit. 2. The color of characters and / or graphics forming the subtitle / character super signal has multiple gradations, and the color adjusting means adjusts the gradations in multiple gradations. The described broadcast signal adjusting device. 3. The broadcast signal adjusting apparatus according to claim 1, wherein the color adjusting means is adjusted by remote control. 4. Receiving means for receiving a broadcast signal, separating means for separating a subtitle / superimpose signal from the broadcast signal received by the receiving means, and characters and / or graphics forming the subtitle / superimpose signal. And a transmission coefficient adjusting means for adjusting the transmission coefficient of the color of the subtitle, and the subtitle / character super signal adjusted by the transmission coefficient adjusting means is combined with another broadcast signal separated by the separating means. Broadcast signal conditioner. 5. The broadcast signal adjusting apparatus according to claim 4, wherein the transmission coefficient adjusting means is adjusted by remote control. 6. A receiving means for receiving a broadcast signal, a separating means for separating a caption / character super signal from the broadcast signal received by the receiving means, and a raster of a display area in which the caption / character super signal is displayed. A broadcast signal adjusting device comprising: a raster color adjusting unit for adjusting a color, wherein the subtitle / character super signal adjusted by the raster color adjusting unit is combined with another broadcast signal separated by the separating unit. . 7. The raster color for the display area in which the subtitle / superimposed signal is displayed has multiple gradations, and the raster color adjusting means adjusts the gradations in multiple gradations. The described broadcast signal adjusting device. 8. The broadcast signal adjusting apparatus according to claim 6, wherein the raster color adjusting means is adjusted by remote control. 9. A receiving means for receiving a broadcast signal, a separating means for separating a subtitle / superimposed signal from the broadcast signal received by the receiving means, and a raster of a display area in which the subtitle / superimposed signal is displayed. Raster color transmission coefficient adjusting means for adjusting the color transmission coefficient, and combining the subtitle / character super signal adjusted by the raster color transmission coefficient adjusting means with another broadcast signal separated by the separating means. A characteristic broadcast signal adjusting device. 10. The raster color transmission coefficient adjusting means is adjusted by remote control.
The described broadcast signal adjusting device. 11. A receiving means for receiving a broadcast signal, a separating means for separating a caption / character super signal from the broadcast signal received by the receiving means, and a character and / or a graphic forming the caption / character super signal. Color adjustment means for adjusting the color of the subtitles / character superimposing signal, and a transmission coefficient adjusting means for adjusting the transmission coefficient of the colors of the characters and / or graphics forming the subtitle / character superimposing signal, and a display area for displaying the subtitle / character superimposing signal. A raster color adjusting means for adjusting the raster color, a raster color transmission coefficient adjusting means for adjusting a raster color transmission coefficient of a display area in which the subtitle / superimposed signal is displayed, the color adjusting means, the transmission coefficient adjusting Means, a raster color adjusting means or a selecting means for selecting one or a plurality of the raster color transmission coefficient adjusting means, and the selecting means selected by the selecting means. The subtitle / character super signal adjusted by the adjusting unit, the transmission coefficient adjusting unit, the raster color adjusting unit, or the raster color transmitting coefficient adjusting unit is combined with another broadcast signal separated by the separating unit. Broadcast signal conditioner. 12. The color of a character and / or a graphic forming the subtitle / character super signal has multiple gradations, and the color adjusting means adjusts the gradations in multiple gradations. The described broadcast signal adjusting device. 13. The raster color of a display area in which the subtitle / superimposed signal is displayed has multi-gradation, and the raster color adjusting means adjusts with multi-gradation. The described broadcast signal adjusting device. 14. The broadcast signal according to claim 11, wherein said color adjusting means, said transmission coefficient adjusting means, said raster color adjusting means and said raster color transmitting coefficient adjusting means are adjusted by remote operation. Adjustment device. 15. The broadcast signal adjusting apparatus according to claim 11, wherein the selecting means adjusts by remote control. 16. A broadcast signal is received, a caption / superimpose signal is separated from the received broadcast signal, and a color of a character and / or a graphic forming the subtitle / superimpose signal is adjusted. A broadcasting signal adjusting method comprising synthesizing the above-mentioned caption / superimposed character signal whose color of a figure is adjusted with another separated broadcasting signal. 17. A broadcast signal is received, a caption / text super signal is separated from the received broadcast signal, and a transmission coefficient of a color of a character and / or a graphic forming the caption / text super signal is adjusted to obtain a character. And / or a broadcasting signal adjusting method characterized by synthesizing the above-mentioned subtitle / character super signal whose transmission coefficient of color of a figure is adjusted with another separated broadcasting signal. 18. A broadcast signal is received, a caption / text super signal is separated from the received broadcast signal, and a raster color of a display area in which the caption / text super signal is displayed is adjusted to obtain a raster color of the display area. A method for adjusting a broadcast signal, characterized in that the above subtitle / character super signal adjusted by is combined with another separated broadcast signal. 19. A broadcast signal is received, a caption / text super signal is separated from the received broadcast signal, and a raster color transmission coefficient of a display area in which the caption / text super signal is displayed is adjusted to obtain a display area. A method for adjusting a broadcast signal, characterized in that the subtitle / character super signal whose transmission coefficient of the raster color is adjusted is combined with another separated broadcast signal. 20. A broadcast signal is received, a caption / text super signal is separated from the received broadcast signal, color of a character and / or a figure forming the caption / text super signal is adjusted, and the caption / character is adjusted. Adjusting the transmission coefficient of the color of the characters and / or graphics forming the super signal, adjusting the raster color of the display area in which the caption / character super signal is displayed, and the display area in which the caption / character super signal is displayed. One or more are selected from the adjustment of the transmission coefficient of the raster color, and the subtitle / character super signal adjusted by the selection is combined with another separated broadcast signal.