JP2003169269A - Method and apparatus for receiving digital broadcasting - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of a conventional broadcast receiving apparatus that has confused users because the aspect ratio of decoded video image actually outputted from a 4:3 side panel signal and a 16:9 letter box signal, in particular, and aspect ratio information to be displayed may sometimes be dissident. <P>SOLUTION: The digital broadcast receiving apparatus discriminates signal information with respect to an aspect ratio acquired from a received digital broadcast program as one of a first signal system and a second signal system. Then the receiving apparatus outputs first aspect ratio display information or second aspect ratio display information on the basis of preset connected television information when a first signal is attached to the signal information discriminated as the first signal system, or outputs first aspect ratio display information or second aspect ratio display information on the basis of preset connected television information when a second signal is attached to the signal information discriminated as the second signal system. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to reception of digital broadcasting, and more particularly to output of video aspect ratio information display.

[0002]

2. Description of the Related Art In Japan, digital broadcasting such as BS digital broadcasting and CS digital broadcasting is broadcast. this,
The user receives using a dedicated digital broadcast receiver,
A broadcast program is being watched.

Video signals of a broadcast program broadcast by digital broadcasting include four types of signals (4: 3 signal, 16: 9 signal, 4: 3 site panel signal, and 16: 9 letter box signal in the broadcast stream ( Video aspect ratio information) is superimposed.

However, in a conventional digital broadcast receiver (here, a BS digital broadcast receiver is taken as an example), when presenting the video aspect ratio information to the user, the information described in the broadcast stream is 4: 3. Or it was sorted and displayed either 16: 9. That is, both the 4: 3 signal and the 4: 3 side panel signal were displayed as "4: 3". Also, both 16: 9 signal and 16: 9 letter box signal were displayed as "16: 9".

In the digital broadcast receiver,
The 4: 3 side panel signal and the 16: 9 letter box signal change the aspect ratio of the decoded video to be output depending on the type of television to which the output of the digital broadcast receiver is connected.

FIG. 8 is a flow chart for explaining display of aspect ratio information in a conventional digital broadcast receiver.

Reference numeral 301 is a start, and then reference numeral 3
Proceed to the step marked with 02.

In step 302, signal information is acquired. Then, the process proceeds to the step indicated by reference numeral 303.

In step 304, the acquired signal information (aspect ratio of the input signal) is judged. That is,
Aspect ratio 4: 3 signal system (4: 3 signal or 4: 3 side panel signal is 4: 3) or 16:
It is determined which of the nine signal systems (16: 9 signal or 16: 9 letterbox signal is 16: 9). If the input signal has an aspect ratio of 4: 3, the process proceeds to the step indicated by reference numeral 305 (4: 3 signal). If the input signal has an aspect ratio of 16: 9, the process proceeds to the step indicated by reference numeral 307 (1
6: 9 signal).

In step 305, the horizontal and vertical aspect ratio is displayed as "4: 3", and the flow advances to step 306 to end.

In step 307, the horizontal and vertical aspect ratio is displayed as "16: 9", and the flow advances to step 306 to finish.

FIG. 9 is a diagram showing the relationship between the aspect ratio of decoded video and the aspect ratio display in a conventional digital broadcast receiver.

This figure illustrates the relationship between the type 41 of video signal, 44 when connected to 4: 3 television and 45 when connected to 16: 9 television.

When outputting a 4: 3 side panel signal with the reference numeral 29c, 44 is good when a 4: 3 TV is connected,
When connected to a 16: 9 television, the aspect ratio (16: 9) of the decoded video and the aspect ratio display (4: 3) do not match. Also, when outputting a 16: 9 letterbox signal with the reference numeral 29d, 45 is good when connected to a 16: 9 TV, but 44 is connected when the 4: 3 TV is connected. Aspect ratio (16: 9) and aspect ratio of decoded video The ratio display (4: 3) does not match.

Therefore, in the conventional digital broadcast receiver, regardless of the type of the connected TV, the aspect ratio information described in the stream is used for 4: 3.
Or, either 16: 9 was displayed. For this reason,
There was a problem that the decoded image actually output and the aspect ratio information displayed did not match, which caused confusion for the user.

[0016]

In the conventional digital broadcast receiving apparatus, when presenting the video aspect ratio information to the user, the stream is output regardless of the type of the television to which the video output of the digital broadcast receiving apparatus is connected. The video aspect ratio information (either 4: 3 or 16: 9) described in was displayed.

However, a 4: 3 side panel signal or 1
In order to correctly output the aspect ratio of a video, the 6: 9 letter box signal changes the aspect ratio of the decoded video to be output depending on the type of television to which the digital broadcast receiving device is connected.

For this reason, there are cases where the decoded image to be actually output and the aspect ratio information to be displayed do not match.
There was the problem of causing confusion for the users.

[0019] For example, in Japanese Patent Laid-Open No. 2001-203989, an output image is converted to a monitor having an aspect ratio of 16: 9 in a digital broadcast receiving device without a viewer's operation to output an image without a non-image area above and below. The technique for doing so is disclosed, but displaying the aspect ratio information is not disclosed. Further, Japanese Patent Application Laid-Open No. 2000-347638 discloses a technique that enables composite display using the same OSD data regardless of the image format of the input video and the resolution of the display device connected thereto. No display of aspect ratio information is disclosed. Therefore, it has been a problem to reduce the confusion of the user due to the mismatch between the decoded video and the displayed aspect ratio information.

It is an object of the present invention to solve the above problems and reduce the confusion of the user due to the mismatch between the decoded video and the displayed aspect ratio information.

[0021]

A method for receiving digital broadcasting according to the present invention comprises a signal information acquisition step of acquiring signal information regarding an aspect ratio from the received digital broadcasting, and a signal information regarding the aspect ratio for the first signal. A signal system determining step of determining whether the system is a system or a second signal system, and determining whether a first signal is added to the signal information determined as the first signal system, and determining the first signal Is added, the first aspect ratio display information or the second aspect ratio display information is output based on preset connection television information.
Signal determining step of step (4), and whether or not a second signal is added to the signal information determined as the second signal system, and if the second signal is added, the connection television set in advance is set. A second aspect that outputs first aspect ratio display information or second aspect ratio display information based on the information
And a signal determination step of.

Also, in the digital broadcasting receiving method according to the present invention, a signal information obtaining step of obtaining signal information relating to the aspect ratio from the received digital broadcasting, and the signal information relating to the aspect ratio are provided in the first signal system or the second signal system. A signal system determination step of determining which of the first signal system is added to the signal information determined as the first signal system.
If the first signal is not added, the first aspect ratio display information is output, and if the first signal is added, the second aspect ratio display information is output.
And a second signal is added to the signal information determined as the second signal system, and the second signal is added. If not, the third aspect ratio display information is output, and if the second signal is added, the fourth aspect ratio display information is output. .

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
A description will be given with reference to the drawings. FIG. 1 is a system block diagram of a digital broadcast receiver according to an embodiment of the present invention. Here, BS digital broadcasting will be described as an example of digital broadcasting, but the present invention is not limited to BS digital broadcasting, and can be implemented in digital broadcasting by terrestrial waves or CATV.

Reference numeral 1 is a BS for receiving BS digital broadcasting.
An antenna, reference numeral 2 is a cable, and reference numeral 3 is a digital broadcast receiver. The digital broadcast receiver 3 is a tuner denoted by reference numeral 11, a decoding device denoted by reference numeral 12, a video processing device denoted by reference numeral 13, a video & graphic MIX device denoted by reference numeral 14, and a signal information acquisition device denoted by reference numeral 15. ,
It includes a CPU denoted by reference numeral 16, a graphic processing device denoted by reference numeral 17, and a key receiving portion denoted by reference numeral 18.

Reference numeral 4 is a cable, and reference numeral 5 is a television (display device). Reference numeral 6 is an icon, which is displayed at the upper right of the video display unit with reference numeral 7.

The BS digital broadcast received by the BS antenna 1 is transmitted to the tuner 11 via the cable 2, and the tuner 11 selects and receives a desired broadcast program.

The digital broadcast received by the tuner is transmitted to the decoding device 12, and the digital broadcast is decoded. The video information of the digital broadcast decoded by the decoding device 12 is transmitted to the video processing device 13 and subjected to video processing. The video information processed by the video processing device 13 is transmitted to the video & graphic MIX device 14.

On the other hand, the signal information of the digital broadcasting decoded by the decoding device 12 is transmitted to the signal information acquisition device 15, and the signal information transmitted by the digital broadcasting is acquired. The signal information acquired by the signal information acquisition device 15 is C
It is transmitted to the PU 16.

The user operates a key provided on the digital broadcast receiver 3 or a key (not shown) of the remote controller, and this key operation information is accepted by the key accepting section 18 and transmitted to the CPU 16.

The television 5 to which the digital broadcast receiver 3 is set and the image is output is operated by the above key operation by the user.
A 4: 3 TV, a 16: 9 TV, or the like is set.

A memory (not shown) is provided inside the CPU 16, and the information of the connected television 5 set as described above is stored in this memory in advance at least before the video output from the digital broadcast receiver 3 to the television 5. It

The connected television information in this memory is, for example, 4: 3 or 1 by default before being set by the user.
It may be preset as 6: 9. In addition, IEEE1
Due to the use of communication such as 394, the digital broadcast receiver 3
When the digital broadcast receiver 3 and the television 5 are connected to each other, the digital broadcast receiver 3 may communicate with the television 5 when the digital broadcast receiver 3 and the television 5 are connected to automatically perform the above setting.

The CPU 16 receives the signal information transmitted from the signal information acquisition device 15 and the key operation information transmitted from the key reception unit 18, and transmits a control signal to the graphic processing device 17. The graphic processor 17 is a CP
Create graphic information to be displayed on the video in accordance with the signal information such as the control signal transmitted from U16,
It is transmitted to the video & graphic MIX device 14.

The video and graphic MIX device 14 synthesizes the video output, which is processed by the video processing device 13 and the graphic information created by the graphic processing device 17, so as to be superimposed and displayed, via the cable 4. To the television (display device) 5.

The television (display device) 5 receives this video output and displays it on the video display section 7. Here, the graphic display icon 6 is displayed at the upper right of the video display unit 7.

The TV 5 for monitoring the image of the digital broadcast receiver 3 is a 4: 3 TV with a horizontal to vertical ratio of 4: 3 and a 16: 9 TV with a horizontal to vertical ratio of 16: 9. The type is general.

The video output output from the digital broadcast receiver 3 is of the type of video signal (4: 3 signal, 16: 9 signal,
4: 3 side panel signal, 16: 9 letter box signal) and
The type of TV to which the digital broadcast receiver 3 is connected (4: 3
Depending on the TV or 16: 9 TV), it is necessary to change it appropriately.

Here, the first embodiment according to the present invention will be described.

FIG. 2 is a diagram showing a relationship between a display device (television) for displaying a broadcast program and video output with different types of video signals. Here, description will be made by classifying each type of video signal.

Reference numeral 41 indicates the type of video signal. Code 2
2a is a 4: 3 signal, code 22b is a 16: 9 signal, code 2
2c is a 4: 3 side panel signal, and 22d is a 16: 9 side panel signal.
It is a letterbox signal. Reference numeral 42 is a signal image,
Reference numeral 43 is an image of video output when a 4: 3 TV is connected,
Reference numeral 43 is an image of video output when a 16: 9 television is connected.

The 4: 3 signal 22a is a signal that can be viewed with a correct aspect ratio when viewed on a 4: 3 television.

As shown in the signal image 42, reference numeral 7a
It is an image of. Here, ◯ represents the image displayed on the image display unit 7 (hereinafter, ◯ represents the image).

When outputting the image to the 4: 3 television, this signal is directly output as the 4: 3 image and displayed on the image display unit 7. The image 43 of the video output at the time of 4: 3 connection is the image of reference numeral 7a.

When this signal is output to a 16: 9 television as a video, it is output as a 4: 3 video. The image of the output video is selected by the user using the screen size switching function provided in the television 5. In addition, digital broadcast receiver 3
Alternatively, the 16: 9 signal may be processed (side panel (described later) or extended in the lateral direction) and output. Image of video output when connected to 16: 9 TV 44
Is an image represented by a solid line 7a, or an image represented by solid lines 8L and 8R represented by broken lines.

The 16: 9 signal 22b is a signal that can be viewed with a correct aspect ratio when viewed on a 16: 9 television.

As shown in the signal image 42, reference numeral 7b
It is an image of.

When outputting this signal to a 4: 3 television, as shown in image 43 of the image output when a 4: 3 television is connected, 7b is provided above each solid line image 7b.
t, a 7 bb black band is added on the lower side, and it is 4: 3 as a whole.
Output as video.

When outputting this signal to a 16: 9 TV, image 4 of the video output when the 16: 9 TV is connected
As shown in FIG. 4, the solid line image 7b is directly changed to 1
Output as a 6: 9 image.

As shown in the signal image 42, the 4: 3 side panel signal 22c is a signal obtained by adding a side panel (left side 7aL, right side 7aR) to an image having an aspect ratio of 4: 3.

When outputting this signal to a 4: 3 television, the images of both side panel portions are cut as shown in image 43 of the image output when the 4: 3 television is connected.
It is output as a 4: 3 video (image of reference numeral 7a).

When this signal is output to a 16: 9 television as an image, the 16: 9 image (7a
L, 7a, 7aR).

The 16: 9 letterbox signal 22c is a signal in which bands (7 bt, 7 bb) are added to the top and bottom of a 16: 9 image as shown in the signal image 42.

When this signal is output to a 4: 3 television as a video, the 4: 3 video (7 bt, 7 b
b, 7bb).

When outputting this signal to a 16: 9 television, the upper and lower strips are cut and output as a 16: 9 image (7b).

Next, the flow of the aspect ratio information display in consideration of the setting of the connected television according to the first embodiment of the present invention will be described.

FIG. 3 is a flow chart of the aspect ratio information display in consideration of the setting of the connected television according to the embodiment of the present invention. These processes are executed by the digital broadcast receiver 3.

As described above, the aspect ratio of the output video of the 4: 3 side panel signal and the 16: 9 letterbox signal changes depending on the setting of the connected TV (4: 3 TV / 16: 9 TV).

Therefore, in the first embodiment of the present invention, the video aspect ratio information is displayed as the icon 6, and the setting of the connected TV (4: 3 TV or 16: 9 TV) is taken into consideration. Then, the aspect ratio information is displayed on the icon 6.

Reference numeral 101 is a start, and then reference numeral 1
Proceed to the step marked with 02.

In step 102, the broadcast tuner 1
1, the signal information is acquired through the decoding device 12 and the signal information acquisition device 15, and the process proceeds to the step denoted by reference numeral 103.

In step 103, the system of the acquired signal (input signal) is first judged. That is, whether the signal system has an aspect ratio of 4: 3 (4: 3 signal or 4: 3 side panel signal) or 16: 9 signal system (16: 9 signal or 16: 9 letterbox signal). To be judged. If the input signal has an aspect ratio of 4: 3, the process proceeds to the step denoted by reference numeral 104 (4: 3 signal). Also, the aspect ratio of the input signal is 1
If the signal system is 6: 9, the process proceeds to the step denoted by reference numeral 107 (16: 9 signal).

In step 104, the aspect ratio is 4:
It is determined whether the side panel signal is added to the input signal of the signal system of No. 3. If the side panel signal has not been added, the process proceeds to the step denoted by reference numeral 105 (No), and if the side panel signal has been added, the reference numeral 11
Proceed to the step marked with 0 (Yes).

In step 105, the horizontal and vertical aspect ratio is displayed as "4: 3", and the process proceeds to step 106 and ends.

In step 107, the aspect ratio is 1
It is determined whether the letterbox signal is added to the input signal of the 6: 9 signal system. If the letterbox signal is not added, the process proceeds to the step denoted by reference numeral 108 (No). If the letterbox signal is added, the process proceeds to the step labeled 109 (Yes).

In step 108, the horizontal and vertical aspect ratio is displayed as "16: 9", and the process proceeds to step 106 and ends.

As described above, the digital broadcast receiver 3 is connected to the inside of the digital broadcast receiver 3, and the television 5 from which the video is output is preset (for example, 4: 3 television, 1
6: 9 TV etc.).

At step 110, the setting of the television connected to the digital broadcast receiver 3 is judged. If the setting of the connected TV is 4: 3, the process similarly proceeds to step 105 (4: 3 TV) and the process of step 105 is executed. If the setting of the connected TV is 16: 9, the process similarly proceeds to step 108 (16: 9 TV), and the process of step 108 is executed.

FIG. 4 is a diagram showing the relationship between the aspect ratio and the display of the decoded video according to the first embodiment of the present invention.

In particular, when the 4: 3 side panel signal 24c is received, the connected television is connected to the 16: 9 television 45.
The decoded video has an aspect ratio of 16: 9, and the display of the aspect ratio is also 16: 9, which coincides. This can solve the problem that the aspect ratio display of the decoded video is 16: 9, but the aspect ratio display is not 4: 3.

Also, 16: 9 letterbox signal 24d
When the connected television is connected to the 4: 3 television, the aspect ratio of the decoded video is 4: 3, and the aspect ratio is also displayed as 4: 3. This can solve the problem that the aspect ratio display of the decoded video is 4: 3, but the display of the aspect ratio is not 16: 9.

In the above description, the order of signal system determination (step 103) → signal determination (step 104 or step 107) → connected television determination (step 105 or step 108) has been described, but the present invention is described above. The display contents are not limited to the order, and the display order can be determined by appropriately changing the determination order of these signal systems, signals, and connected televisions.

In the first embodiment according to the present invention, by virtue of the above-mentioned structure, especially 4: 3
Even if the side panel signal and 16: 9 letterbox signal are received, the connected TV (4: 3 TV or
16: 9 TV), by switching the display of the video aspect ratio, the display of the video aspect ratio information,
It can match the aspect ratio of the output video. Therefore, the confusion of the user caused by the mismatch between the display and the actual output video can be reduced.

Next, a second embodiment according to the present invention will be described.

FIG. 5 is a flow chart of display according to the second embodiment of the present invention so that the type of video signal can be known. These processes are mainly performed by the digital broadcast receiver 3
Run on.

Reference numeral 201 represents start, and then reference numeral 2
Proceed to the step marked with 02.

At step 202, the broadcast to tuner 1
1, the signal information is acquired through the decoding device 12 and the signal information acquisition device 15, and the process proceeds to the step denoted by reference numeral 203.

In step 203, the system of the acquired signal (input signal) is first judged. That is, whether the signal system has an aspect ratio of 4: 3 (4: 3 signal or 4: 3 side panel signal) or 16: 9 signal system (16: 9 signal or 16: 9 letterbox signal). To be judged. If the input signal has an aspect ratio of 4: 3, the process proceeds to the step denoted by reference numeral 204 (4: 3 signal). Also, the aspect ratio of the input signal is 1
If the signal system is 6: 9, the process proceeds to the step denoted by reference numeral 207 (16: 9 signal).

In step 204, the aspect ratio is 4:
It is determined whether the side panel signal is added to the input signal of the signal system of No. 3. If the side panel signal is not added, the process proceeds to the step indicated by reference numeral 205 (No), and if the side panel signal is added, reference numeral 21
Proceed to the step marked with 0 (Yes).

At step 205, since the side panel signal is not added to the input signal, the horizontal and vertical aspect ratio is displayed as "4: 3", and the routine proceeds to step 206 and ends.

At step 210, since the side panel signal is added to the input signal, the horizontal and vertical aspect ratio is displayed as "4: 3 side panel", and the routine proceeds to step 206 and ends.

In step 207, the aspect ratio is 1
It is determined whether the letterbox signal is added to the input signal of the 6: 9 signal system. If the letterbox signal is not added, the process proceeds to the step indicated by reference numeral 208 (No). If the letterbox signal has been added, the process proceeds to the step labeled 209 (Yes).

At step 208, since the letterbox signal is not added to the input signal, the horizontal and vertical aspect ratio is displayed as "16: 9", and the routine proceeds to step 206 and ends.

In step 209, since the letterbox signal is added to the input signal, the horizontal and vertical aspect ratio is displayed as "16: 9 letterbox", and step 20
Go to 6 to finish.

In the above description, the order of signal system determination (step 203) → signal determination (step 204 or step 207) → connected television determination (step 205, step 210 or step 208, step 209) has been described. However, the present invention is not limited to the above order, and it is also possible to appropriately change the determination order of the signal system, the signal, and the connected television to determine the display content.

FIG. 6 is a diagram showing the relationship between the aspect ratio of decoded video and display according to the second embodiment of the present invention.

In particular, when the 4: 3 side panel signal 26c is received, the connected television is connected to the 16: 9 television 45.
In, even if the aspect ratio of the decoded video is 16: 9, the display of the aspect ratio is displayed as 4: 3 side panel, and the user can know that the 4: 3 side panel signal has been transmitted.

Also, a 16: 9 letterbox signal 26d
When received, the aspect ratio of the decoded video is 4: 3.
Even so, the display of the aspect ratio is displayed as 16: 9 letterbox, and the user can know that the 16: 9 letterbox signal has been transmitted.

In the second embodiment according to the present invention, with the above-mentioned configuration, when the video aspect ratio information is displayed, the video aspect ratio information (4: 3 / Instead of displaying only 16: 9) as it is, the type of video signal (4: 3 signal, 1
Aspect ratio information can be displayed so that up to a 6: 9 signal, a 4: 3 side panel signal, and a 16: 9 letterbox signal can be understood. Therefore, by displaying the aspect ratio information so that the type of the video signal can be known, the user can accurately determine the formation of the output video. Therefore, the confusion of the user caused by the mismatch between the display and the actual output video can be reduced.

Next, a third embodiment according to the present invention will be described.

FIG. 7 is a diagram showing an example of the icon 6 for displaying the aspect ratio information according to the third embodiment of the present invention. As described above, the icon 6 is displayed on the image display unit 7 of the television 5 so as to be superimposed on the image. Here, the icon 6 displays the aspect ratio information so that the type of the video signal can be known.

Reference numeral 40 indicates a display method column. Reference numeral 41 indicates a column of the type of video signal. The types of video signals are classified into 4: 3 signals, 16: 9 signals, 4: 3 side panel signals, and 16: 9 letterbox signals, respectively.

Reference numeral 27a is an example of text display. The video signal type 41 is represented by a text display with the name of the video signal as it is. Reference numeral 61a is 4:
3 signals, the code 62a is 16: 9 signal, and the code 63a is 4:
3 side panel signals, reference numeral 64a is a display example of a 16: 9 letterbox signal.

Reference numeral 27b is an example of text display using abbreviations. The video signal type 41 uses an abbreviation that abbreviates part of the video signal name, and the video signal name is represented by text display. Reference numeral 61b is a 4: 3 signal, reference numeral 62b is a 16: 9 signal, reference numeral 63b is a 4: 3 side panel signal, and reference numeral 64b is a 16: 9 letterbox signal.

Reference numeral 27c is an example in which the video signal type 41 is represented by text aspect ratio information and color. Although not shown in the figure, different colors are used to represent the normal signal and the special signal such as the side panel signal or the letterbox signal depending on the color. Reference numeral 61c is displayed as a 4: 3 signal, reference numeral 62c is displayed as a 16: 9 signal, reference numeral 63c is displayed as a 4: 3 side panel signal, and reference numeral 64c is displayed as a 16: 9 letterbox signal. The text background color may be different and the normal signal and the special signal may be expressed and separated.

Reference numeral 27d is an example represented by an icon display so that the type 41 of the video signal can be easily recognized. For the type of video signal, the name of the video signal is directly displayed as characters. Reference numeral 61d indicates 4: 3 signal, and reference numeral 62d indicates 16 :.
9 signals, reference numeral 63d is 4: 3 side panel signal, reference numeral 6
4d is displayed as a 16: 9 letterbox signal.

Reference numeral 27e is an example represented by an icon display so that the type 41 of the video signal can be easily recognized. The name of the video signal is abbreviated and displayed as the type of the video signal. Reference numeral 61e indicates a 4: 3 signal, reference numeral 62e indicates a 16: 9 signal, reference numeral 63e indicates a 4: 3 side panel signal, and reference numeral 64e indicates 16 :.
9 Display as letterbox signal.

Reference numeral 27f is an example represented by an icon display so that the type 41 of the video signal can be easily recognized. Due to the difference in color, normal signals and special signals such as side panel signals and letterbox signals are expressed separately. The type 41 of the video signal is displayed by omitting the name of the video signal. Code 6
If 1f is 4: 3 signal, code 62f is 16: 9 signal, code 6
3f is a 4: 3 side panel signal, and 64f is a 16: 9 side panel signal.
Display as a letterbox signal.

Reference numeral 27g is an example represented by an icon display (graphic identification 1) so that the type 41 of the video signal can be easily recognized. Add a graphic reminiscent of a side panel signal or letterbox signal to the icon. In this example, the icon background is displayed in association with the left and right side panels of the side panel signal and the upper and lower black bands of the letterbox signal. Reference numeral 61g is a 4: 3 signal, reference numeral 62g is a 16: 9 signal, reference numeral 63g is a 4: 3 side panel signal, reference numeral 64g.
Is displayed as a 16: 9 letterbox signal.

Reference numeral 27h is an example represented by an icon display (figure identification 2) so that the type 41 of the video signal can be easily recognized. Add a graphic reminiscent of a side panel signal or letterbox signal to the icon. In this example, the icon background is displayed in association with the left and right side panels of the side panel signal and the upper and lower black bands of the letterbox signal, and the icon size is changed according to the aspect ratio of the decoded image. Reference numeral 61h indicates a 4: 3 signal, reference numeral 62h indicates a 16: 9 signal, reference numeral 63h indicates a 4: 3 side panel signal, and reference numeral 64h indicates a 16: 9 letterbox signal.

Reference numeral 27i is an example represented by an icon display (graphic identification 3) so that the type 41 of the video signal can be easily recognized. Add a graphic reminiscent of a side panel signal or letterbox signal to the icon.

In this example, a television screen is displayed in the icon, and the television screen is displayed in association with the left and right side panels of the side panel signal and the upper and lower black bands of the letterbox signal. Reference numeral 61i is a 4: 3 signal, reference numeral 6
2i is displayed as a 16: 9 signal, reference numeral 63i is displayed as a 4: 3 side panel signal, and reference numeral 64i is displayed as a 16: 9 letterbox signal.

Reference numeral 27j is an example represented by an icon display ("wide" display 1) so that the type 41 of the video signal can be easily recognized. "Wide" display is used instead of "4: 3" and "16: 9" display. In this example, 16: 9
In the case of a signal, “wide” is displayed, and in the case of a 4: 3 signal, “wide” is erased. Reference numeral 61j indicates a 4: 3 signal, reference numeral 62j indicates a 16: 9 signal, reference numeral 63j indicates a 4: 3 side panel signal, and reference numeral 64j indicates a 16: 9 letterbox signal.

Reference numeral 27k is an example represented by an icon display ("wide" display 2) so that the type 41 of the video signal can be easily recognized. Use "wide" display instead of "4: 3" and "16: 9" display. In this example, the 16: 9 signal is displayed normally, and the 4: 3 signal is displayed in tone down mode.

In the third embodiment according to the present invention, by configuring as described above, when the aspect ratio information is displayed, it is possible to express the kind of the video signal by the color difference. You can In addition, when displaying the aspect ratio information, it is possible to describe the type of the video signal by additionally including a diagram associated with the video signal.

[0105]

According to the first embodiment of the present invention, when the video aspect ratio information is presented to the user, the video aspect ratio information (4: 3/1) described in the stream is displayed.
It is possible to display the aspect ratio information in consideration of the setting of the TV (4: 3 TV / 16: 9 TV) to which the digital broadcast receiver is connected, instead of displaying the 6: 9) as it is.

In the second embodiment according to the present invention, when presenting the video aspect ratio information to the user,
Video aspect ratio information (4: 3/16:
Instead of displaying only 9) as it is, the type of video signal (4: 3 signal, 16: 9 signal, 4: 3 side panel signal,
Aspect ratio information can be displayed so that it can be understood up to a 16: 9 letter box signal).

Further, in the third embodiment according to the present invention, when the aspect ratio information is displayed, it is possible to express such that the type of the video signal can be known by the difference in color. In addition, when displaying the aspect ratio information, it is possible to describe the type of the video signal by additionally including a diagram associated with the video signal.

Therefore, the confusion of the user due to the mismatch between the decoded video and the display of the aspect ratio information can be reduced.

[Brief description of drawings]

FIG. 1 is a system block diagram according to the present invention.

FIG. 2 is a diagram showing a relationship between a broadcast program display device according to the present invention and video output with different types of video signals.

FIG. 3 is a flowchart of aspect ratio information display in consideration of a connected television according to the present invention.

FIG. 4 is a diagram showing a relationship between an aspect ratio of a decoded video and a display according to the first embodiment of the present invention.

FIG. 5 is a flow chart of display according to the second embodiment of the present invention, in which the type of video signal is known.

FIG. 6 is a diagram showing a relationship between an aspect ratio of a decoded image and a display according to a second embodiment of the present invention.

FIG. 7 is a diagram showing an example of an icon displaying aspect ratio information according to a third embodiment of the present invention.

FIG. 8 is a flowchart of aspect ratio information display according to a conventional digital broadcast receiver.

FIG. 9 is a diagram showing a relationship between an aspect ratio of decoded video and an aspect ratio display according to a conventional digital broadcast receiver.

[Explanation of symbols]

1 ... BS antenna 2 ... Cable 3… Digital broadcasting receiver 4 ... Cable 5… Television (display device) 6… Icon 7 ... Image display 11 ... Tuner 12 ... Decoding device 13 ... Image processing device 14… Video & Graphic MIX Device 15 ... Signal information acquisition device 16 ... CPU 17 ... Graphic processor 18 ... Key reception section

Continued front page    F-term (reference) 5C025 AA30 BA02 BA14 BA25 BA28                       CA03 CA08 CA09 DA01 DA10                 5C058 BA22                 5C063 AA07 AB03 AB07 AC01 AC10                       BA03 BA06 BA14 CA01 CA23                       CA25 CA29 CA36 DA13 DB10

Claims (19)

[Claims] 1. A method for receiving digital broadcasting, which receives digital broadcasting and outputs video and aspect ratio information based on the received digital broadcasting, in a signal information acquisition step of acquiring signal information regarding an aspect ratio from the received digital broadcasting. A signal system determining step of determining the signal information relating to the aspect ratio as either a first signal system or a second signal system, and adding a first signal to the signal information determined as the first signal system. If the first signal is added, the first aspect ratio display information or the second aspect ratio display information is output based on the preset connection television information. A signal determining step, and determining whether or not a second signal is added to the signal information determined as the second signal system, A second signal determination step of outputting the first aspect ratio display information or the second aspect ratio display information based on the preset connection television information if the second signal is added. A method for receiving digital broadcasting characterized by the following. 2. The first signal system is a 4: 3 signal system, the second signal system is a 16: 9 signal system, and the first signal is a side panel signal. The second signal is a letterbox signal, the first aspect ratio display information displays an aspect ratio of 4: 3, and the second aspect ratio display information displays an aspect ratio of 16: 9. The method of receiving a digital broadcast according to claim 1. 3. A digital broadcast receiving method of receiving a digital broadcast and outputting a video and aspect ratio information based on the received digital broadcast, in a signal information acquisition step of obtaining signal information regarding an aspect ratio from the received digital broadcast. A signal system determining step of determining the signal information relating to the aspect ratio as either a first signal system or a second signal system, and adding a first signal to the signal information determined as the first signal system. If the first signal is added, the first aspect ratio display information or the second aspect ratio display information is output based on the preset connection television information. A method for receiving digital broadcasting, comprising: a signal judging step. 4. A digital broadcast receiving method for receiving digital broadcast and outputting video and aspect ratio information based on the received digital broadcast, in a signal information obtaining step of obtaining signal information relating to the aspect ratio from the received digital broadcast. A signal system determination step of determining the signal information regarding the aspect ratio as either a first signal system or a second signal system; and adding a second signal to the signal information determined as the second signal system. If the second signal is added, the second aspect ratio display information or the second aspect ratio display information is output based on preset connection television information. A method for receiving digital broadcasting, comprising: a signal judging step. 5. The digital broadcast according to claim 1, wherein the first aspect ratio display information and the second aspect ratio display information are icon displays that display the types of video signals. Receiving method. 6. The method for receiving digital broadcasting according to claim 5, wherein the icon display displays different types of video signals by different colors. 7. The method of receiving a digital broadcast according to claim 5, wherein the icon display displays a graphic that is associated with the type of video signal. 8. A digital broadcast receiving apparatus which receives a digital broadcast and outputs a video and aspect ratio information based on the received digital broadcast, decodes the received digital broadcast, and outputs signal information relating to the aspect ratio from the decoded signal. A signal information acquisition unit to acquire, a signal system determination unit to which the signal information related to the aspect ratio is input, and to determine as either a first signal system or a second signal system, and a signal system determination unit to determine as the first signal system. It is determined whether the first signal is added to the signal information, and if the first signal is added, the first aspect ratio display information or the second aspect ratio display information based on the preset connection television information. A first signal determining means for outputting aspect ratio display information, and a second signal for the signal information determined as the second signal system. Is added, and if the second signal is added, the first aspect ratio display information or the second aspect ratio display information is output based on preset connection television information. 2. A digital broadcast receiving apparatus comprising: 2 signal determining means. 9. The first signal system is a 4: 3 signal system, the second signal system is a 16: 9 signal system, and the first signal is a side panel signal. The second signal is a letterbox signal, the first aspect ratio display information displays an aspect ratio of 4: 3, and the second aspect ratio display information displays an aspect ratio of 16: 9. The digital broadcast receiving apparatus according to claim 7, 10. The digital broadcast reception according to claim 8 or 9, wherein the first aspect ratio display information and the second aspect ratio display information are icon displays indicating the types of video signals. apparatus. 11. The icon display displays different types of video signals by different colors.
The digital broadcast receiving device according to. 12. The digital broadcast receiving apparatus according to claim 10, wherein the icon display displays a graphic that is associated with the type of video signal. 13. A method for receiving digital broadcasting, which receives video and outputs video and aspect ratio information based on the received digital broadcasting, in a signal information acquisition step of acquiring signal information regarding an aspect ratio from the received digital broadcasting. A signal system determining step of determining the signal information relating to the aspect ratio as either a first signal system or a second signal system, and adding a first signal to the signal information determined as the first signal system. If the first signal is not added, the first aspect ratio display information is output, and if the first signal is added, the second aspect ratio display information is output. A first signal determining step, and determining whether or not a second signal is added to the signal information determined as the second signal system, A second signal determination step of outputting third aspect ratio display information if the second signal is not added, and outputting fourth aspect ratio display information if the second signal is added. A method for receiving digital broadcasting, comprising: 14. A method for receiving a digital broadcast, which receives a digital broadcast and outputs video and aspect ratio information based on the received digital broadcast, in a signal information obtaining step of obtaining signal information regarding an aspect ratio from the received digital broadcast. A signal system determining step of determining the signal information relating to the aspect ratio as either a first signal system or a second signal system, and adding a first signal to the signal information determined as the first signal system. If the first signal is not added, the first aspect ratio display information is output, and if the first signal is added, the second aspect ratio display information is output. A method for receiving digital broadcasting, comprising: a first signal determination step. 15. A method for receiving digital broadcasting, which receives digital broadcasting and outputs video and aspect ratio information based on the received digital broadcasting, in a signal information obtaining step of obtaining signal information regarding aspect ratio from the received digital broadcasting. A signal system determination step of determining the signal information regarding the aspect ratio as either a first signal system or a second signal system; and adding a second signal to the signal information determined as the second signal system. If the second signal is not added, the third aspect ratio display information is output, and if the second signal is added, the fourth aspect ratio display information is output. A method for receiving digital broadcasting, comprising a second signal determination step. 16. The first signal system is a 4: 3 signal system, the second signal system is a 16: 9 signal system, and the first signal is a side panel signal. The second signal is a letterbox signal, the first aspect ratio display information displays an aspect ratio of 4: 3, the second aspect ratio display information displays an aspect ratio 4: 3 side panel, and 17. The digital according to claim 13, wherein the third aspect ratio display information displays an aspect ratio of 16: 9, and the fourth aspect ratio display information displays an aspect ratio of 16: 9 letterbox. Broadcast reception method. 17. A digital broadcast receiving apparatus which receives a digital broadcast and outputs a video and aspect ratio information based on the received digital broadcast, decodes the received digital broadcast, and outputs signal information relating to the aspect ratio from the decoded signal. A signal information acquisition unit to acquire, a signal system determination unit to which the signal information related to the aspect ratio is input, and to determine as either a first signal system or a second signal system, and a signal system determination unit to determine as the first signal system. It is determined whether the first signal is added to the signal information, and if the first signal is not added, the first aspect ratio display information is output,
A first signal judging means for outputting second aspect ratio display information if the first signal is added; and a second signal added to the signal information judged as the second signal system. Whether the second signal is not added, the third aspect ratio display information is output, and if the second signal is added, the fourth aspect ratio display information is output. And a signal determining means for the digital broadcast receiving device. 18. A method for receiving digital broadcasting, which receives digital broadcasting and outputs video and aspect ratio information based on the received digital broadcasting, in a signal information acquisition step of acquiring signal information regarding the aspect ratio from the received digital broadcasting. , The acquired signal information about the aspect ratio is 4: 3.
It is a side panel signal, and when the preset connection television information is 16: 9, the aspect ratio display information is output as 16: 9, and the signal information regarding the acquired aspect ratio is a 16: 9 letterbox signal. And
When the preset connection television information is 4: 3, a step of outputting the aspect ratio display information as 4: 3 is included. 19. A digital broadcast receiving apparatus for receiving digital broadcast and outputting video and aspect ratio information based on the received digital broadcast, and signal information acquisition means for acquiring signal information regarding the aspect ratio from the received digital broadcast, The acquired signal information regarding the aspect ratio is 4: 3.
It is a side panel signal, and when the preset connection television information is 16: 9, the aspect ratio display information is output as 16: 9, and the signal information regarding the acquired aspect ratio is a 16: 9 letterbox signal. And
A digital broadcast receiving apparatus comprising: means for outputting the aspect ratio display information as 4: 3 when the preset connection television information is 4: 3.