JP2003078835A - Digital broadcasting receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a digital broadcasting receiver for enabling even a person with visual disorder (particularly color blindness) to comfortably watch data broadcasting, etc., by making display characters, etc., to be easily seen. SOLUTION: When 'background/display color selection' is selected and decided, a half of a screen is used to display a portion of an EPG image in an illustrative example manner and also to display buttons such as a 'next pattern', 'return' and 'decision'. In the first EPG illustrative example display, a background color and display colors of characters and diagrams are set based on first pattern information. When the 'next pattern' is selected and decided, the background color and the display colors are set and displayed based on second pattern information. When the 'decision' is selected and decided, a matter that a pattern at that time is adopted is stored in a nonvolatile memory 13, and actual EPG display is performed with the decided pattern.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital broadcast receiver for receiving satellite digital broadcasts and terrestrial digital broadcasts.

[0002]

2. Description of the Related Art For example, in a digital broadcast receiving system using a satellite, a video / audio signal is compressed using a digital signal compression technique and a stream (trans) in which video / audio digital signals of a plurality of programs are time-division multiplexed. The port stream) is broadcast via a transponder (satellite repeater). On the other hand, a broadcast receiving apparatus for receiving such a digital broadcast selects one of a plurality of transponders of a digital broadcast received through an antenna with a tuner, and selects one of a plurality of channels included in this one transponder. Is selected by demultiplexing, and the digital signal of the selected channel is decoded to output a video / audio signal.

By the way, in such digital television broadcasting, in addition to transmitting video and audio like conventional analog broadcasting, service information (program name, program content, program start time, program duration, program genre information) Etc.) is also transmitted, and the EPG (Electronni) using the OSD (On Screen Display) function on the receiving device side
c Program Guide) display function
The user can select a desired program from the multi-channel broadcasting. In addition, subtitle broadcasts and data broadcasts that add subtitles to videos can be viewed.

[0004]

However, in the above-mentioned conventional digital broadcast receiving apparatus, these settings are fixed in the display such as the EPG display in which the character color, character arrangement, etc. can be set on the receiving apparatus side. In data broadcasting, subtitle broadcasting, etc., the character color and character arrangement are fixedly specified by the sender, so if the viewer is visually impaired (especially color vision abnormality), the displayed characters are difficult to see. Sometimes I can't enjoy watching it.

In view of the above circumstances, the present invention provides a digital broadcast receiving apparatus that makes it easy to see displayed characters and the like so that even people with visual anomalies (particularly color blindness) can comfortably view data broadcasts and the like. The purpose is to

[0006]

In order to solve the above-mentioned problems, a digital broadcast receiving apparatus of the present invention outputs a video signal based on a received video broadcast program and independently creates a video to generate the video. A digital broadcast receiving device capable of outputting a signal has a plurality of patterns of a combination of a background color and a display color of an image created independently, and outputs a video signal composed of the background color and the display color of a pattern selected by a user. It is characterized by being configured as follows.

With the above arrangement, the user can select a combination of the background color and the display color that is easy for him or her to see from among a plurality of patterns and present an EPG screen or menu screen based on the selected combination. Therefore, even a visually impaired person (particularly, a color vision abnormality) can comfortably view the menu screen and the like.

Further, the digital broadcast receiving apparatus of the present invention is a digital broadcast receiving apparatus capable of producing a video independently of the video signal based on the received video broadcast program and outputting the video signal. Having one or more conversion information for changing the RGB ratio of the video signal,
It is characterized in that it is configured to output an image created independently by changing it based on the conversion information selected by the user.

With the above configuration, for example, conversion information for providing RGB signal ratios for enhancing the contrast between the red display area and the green display area is prepared for those who have difficulty distinguishing between red and green. By setting it, even a user who cannot easily distinguish between red and green can comfortably see the menu screen and the like.

The digital broadcast receiving apparatus of the present invention is a digital broadcast receiving apparatus capable of producing a video independently of the video signal based on the received video broadcast program and outputting the video signal. It is configured to have a plurality of patterns for the size and / or interval of the characters on the image to be created independently, and to output a video signal of the character size and / or the interval of the pattern selected by the user. Is characterized by.

According to the above-mentioned structure, by preparing a pattern of large characters and wide character spacing, even an elderly person can comfortably see the menu screen and the like.

The digital broadcast receiving apparatus of the present invention is a digital broadcast receiving apparatus capable of outputting a video signal based on received display data in addition to outputting a video signal based on a received video broadcast program. The feature is that the color specified by the data is automatically changed to a different color and the video signal is output.

With the above configuration, for example, when the background color is red and the character color is green on the received data broadcast screen or subtitle screen, the character color is automatically changed to white. Will be done.

The digital broadcast receiving apparatus of the present invention is a digital broadcast receiving apparatus capable of outputting a video signal based on received display data in addition to outputting a video signal based on a received video broadcasting program. Of one or a plurality of conversion information for changing the R, G, and B ratios of the display data are created based on the color specified by the data, and the created video signal is converted into conversion information selected by the user. It is characterized in that it is configured to change and output based on the above.

With the above configuration, for example, in the case where the background color is red and the character color is green on the received data broadcast screen or subtitle screen, red is used for those who cannot easily distinguish between red and green. By preparing conversion information that provides an RGB signal ratio that enhances the contrast between the display area and the green display area, even users who have difficulty distinguishing between red and green can see the data broadcasting screen comfortably. You can

Further, the digital broadcast receiving apparatus of the present invention is a digital broadcast receiving apparatus capable of outputting a video signal based on received display data in addition to outputting a video signal based on a received video broadcast program. It is characterized in that the size and / or interval of the characters designated by the data is changed to output the video signal.

With the above configuration, even if the characters on the received data broadcast screen or subtitle screen are small and the character spacing is narrow, it is possible to change to a pattern in which the character spacing is large and the character spacing is wide. Because it is possible, even elderly people can comfortably see the data broadcasting screen.

The information on the combination pattern of the background color and the display color may be acquired by downloading. Further, the conversion information may be acquired by downloading.

Further, the digital broadcast receiving apparatus of the present invention is a digital broadcast receiving apparatus capable of producing a video image representing a button at a predetermined portion of the screen and outputting the video signal, in the non-selected state of the button, the button Selection state,
And at least one of the determined states of the buttons is represented by a dynamic change of the button.

With the above configuration, it is not necessary to identify the non-selected state of the button, the selected state of the button, and the determined state of the button by the color, so that even a person with a color vision abnormality can comfortably operate the button. Can be done.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG.
2 and FIG. 2, the user is B
S (Broadcasting via Satell)
ite) illustrates the case of viewing a digital broadcast. FIG. 1 shows a digital broadcast receiver 30 of this embodiment.
2 is an explanatory diagram showing display by the first pattern and display by the second pattern of the EPG screen.

The antenna 1 shown in FIG. 1 is arranged outdoors in a predetermined direction and receives a digital broadcast wave sent from the BS. This antenna 1 is generally provided with a frequency converter, and supplies the received / frequency-converted signal to the BS digital tuner 2.

The BS digital tuner 2 extracts a signal of a specific frequency from the received high frequency digital modulated signal. That is, a process of selecting one from a plurality of transponders for digital broadcasting is performed. Further, the tuner 2 is equipped with a demodulation circuit, a deinterleave circuit, an error correction circuit, etc., so as to demodulate the selected digital modulation signal and output a transport stream.

The demultiplexer (DEMUX) 3 converts the transport stream received from the tuner 2 into MPEG2 (Moving Picture Ex).
perts Group 2) video stream, audio stream, and PSI / SI (Program)
m Specific Information / Se
rival Information). The demultiplexer 3 supplies the video stream and the audio stream to the AV decoder 4, and the service information (program name, program details, program start time, program duration, genre information, etc.) included in the PSI / SI, etc. Supply to. As described above, a plurality of channels are multiplexed in the transport stream, and the process for selecting an arbitrary channel from these channels is performed by selecting the desired channel from the PSI / SI in the transport stream. Then, it becomes possible by extracting the data such as which packet ID is used for multiplexing. Also, the selection of the transport stream (selection of the transponder) can be performed based on the PSI / SI information.

The AV decoder 4 comprises a video decoder for decoding a video stream and an audio decoder for decoding an audio stream. The video decoder decodes the input variable length code to obtain a quantized coefficient and a motion vector, and performs inverse DCT conversion and motion compensation control based on the motion vector. The audio decoder decodes the input coded signal to generate audio data.

The video processing circuit 5 receives the video data from the AV decoder 4 and performs D / A conversion to generate a video signal. The audio signal processing circuit 6 receives the audio data output from the AV decoder 4 and performs D / A conversion to generate, for example, a right (R) sound analog signal and a left (L) sound analog signal.

The OSD circuit 11 outputs to the adder 20 bitmap data based on the character information and color information instructed to output by the system controller 12. The adder 20 incorporates the video signal based on the bitmap data into the video signal output from the video processing circuit 5 and supplies the video signal to the drive circuit 7. The OSD circuit 11 causes the system controller 12 to receive the service information (S
I) based EPG (Electronic Prog)
In addition to the ram guide) screen, a menu screen, a data broadcast screen, a subtitle screen for subtitle broadcasting, and the like are created.

The receiver 8 receives the video signals (R, G, B signals and vertical / horizontal sync signals) supplied from the drive circuit 7.
The image is displayed by. Further, the speaker 14 outputs a voice according to the voice signal output from the voice processing circuit 6.

The remote control transmitter 9 is the broadcast receiver 30.
It is a transmitter for sending a command to. When a key (not shown) provided on the remote control transmitter 9 is operated, a signal light (remote control signal) meaning a command corresponding to the key.
Is transmitted from a light emitting unit (not shown). Remote control receiver 1
0 receives the signal light, converts it into an electric signal, and supplies it to the system controller 12. The user can use the remote control transmitter 9 to display a menu screen and select / determine any item on the menu screen.

The non-volatile memory 13 stores service information that constitutes a program guide and the like, background / character color pattern information, which will be described later, character size / interval pattern information, conversion formula information, setting information, and the like. To be done.

The modem 15 operates under the control of the system controller 12 in the dial-up connection for periodically transmitting the billing information. Also, the modem 15
Is also used for downloading background / character color pattern information and conversion formula information.

The system controller 12 performs the overall control of the digital broadcast receiving device 30, and particularly executes the following control as the control according to the present invention.

For example, when an item of "viewability setting" is prepared as one of the setting items on the menu screen and this item is selected and determined by the user's remote control operation, "background / display" is selected as a sub-item thereof. Display the items "Color selection", "Color vision assistance setting", "Low vision / elderly setting", and "Button motion change setting".

When "background / display color selection" is selected / determined, a part of the EPG screen is exemplarily displayed using, for example, the screen half as shown in FIGS. 2 (a) and 2 (b). At the same time, buttons such as “next pattern”, “return”, and “decide” are displayed. In the first EPG exemplifying display, the first pattern information is acquired from the non-volatile memory 13, and the background color and the display color of characters and figures are set based on this pattern information. When the "next pattern" is selected and determined, the second pattern information is acquired from the non-volatile memory 13, and the background color and the display color are set and displayed based on this pattern information. Further, when "decide" is selected and decided, the fact that the pattern at that time is adopted is stored in the non-volatile memory 13, and the actual EPG display is performed with this decided pattern. Not only on the EPG screen, but also on the subsequent menu screens and the like, the display is performed according to the determined background / display color. Alternatively, a menu screen or the like may be independently displayed to allow the user to select a pattern.

When the "color vision auxiliary setting" is selected / determined, for example, "a person who has difficulty distinguishing between red and green",
Display the subordinate items such as "one who has difficulty distinguishing between yellow and blue". When an item is selected / determined by the user's remote control operation, the conversion formula (information for realizing the conversion) prepared for each item is stored in the nonvolatile memory 1.
Read from 3. The conversion formula is RGB which is a video signal.
This is information that changes the ratio of signals (as an equation, RGB
(A determinant for a signal can be used), and for those in which red and green are difficult to distinguish, for example, R that increases the contrast between the red display region and the green display region is used.
Will result in a GB signal ratio. The processing by such a conversion formula may be performed on the RGB signals themselves by digital processing, or may be performed at the stage of the color difference signals. In addition, the conversion formula (information for realizing the conversion) is the subject who is difficult to distinguish between red and green.
It is possible to derive various accumulated color data by performing various color correction processes.

The above conversion processing can be performed on the EPG screen, the menu screen, or the like, or can be performed on the data broadcast video or subtitle video that is video based on the received display data. With respect to the above-mentioned data broadcast video, subtitle video, etc., the color and the like are specified on the transmission side, and it is possible to provide an easy-to-see screen for those who have difficulty distinguishing between red and green while respecting this specification.

On the other hand, in the specification of the background color and the display color in the above data broadcast video or subtitle video, for example, an XML (BML) description is analyzed to determine whether or not there is a specification such that a green character is displayed on a red background. If there is such a designation, the character may be automatically changed to a white character.

When "low visual acuity / elderly person setting" is selected / determined, for example, a part of the EPG screen is exemplarily displayed using the screen half, and "next pattern", "return", " A button such as "OK" is displayed. First EP
In the G example display, the first pattern information is acquired from the non-volatile memory 13, and the character size and / or the interval is set based on the pattern information. When the "next pattern" is selected / determined, the second pattern from the non-volatile memory 13
The pattern information is acquired, and the character size and / or the interval is set based on the pattern information and displayed. Also,
When “decide” is selected and decided, the fact that the pattern at that time is adopted is stored in the non-volatile memory 13,
The actual EPG display is performed with the determined pattern. E
Not only on the PG screen but also on the subsequent menu screens and the like, the display is performed according to the determined character size and / or interval. Alternatively, a menu screen or the like may be independently displayed to allow the user to select a pattern.

The above-described processing can be performed on the EPG screen, the menu screen, or the like, or can be performed on the data broadcast video or subtitle video that is video based on the received display data. Even when the character size and / or the interval is specified in the data broadcast video or the subtitle video, the character size and / or the interval are automatically changed according to the determined character size and / or the interval.

When the "button movement change setting" is selected / determined, a process (preferably gradually increasing) of displaying a large button when the button is selected is displayed in subsequent menu screens and the like. Try to do it. Not only the selected state of the button but also the non-selected state of the button and the determination of the button may be represented by the dynamic change of the button. Representing the non-selected state of the button by the dynamic change of the button has an advantage that the button position can be presented to the viewer in an easy-to-understand manner when the screen changes to another screen. Note that the dynamic change of the button includes blinking (animation) of the button, addition of a finger mark, rotation of the button, repeated movement of the button up / down / left / right within a predetermined range.

When the information regarding the conversion formula or the pattern exists in the digital broadcast wave, the information is downloaded and stored in the non-volatile memory 13. Further, when a user gives an instruction or periodically, the modem 15 is used to access a predetermined server to execute the download.

[0042]

As described above, according to the present invention, it is possible to make it easier to see displayed characters and the like so that even people with visual anomalies (particularly color blindness) can comfortably watch data broadcasts. Play.

[Brief description of drawings]

FIG. 1 is a block diagram showing a digital broadcast receiving apparatus according to an embodiment of the present invention.

2A and 2B are explanatory views showing an EPG screen according to an embodiment of the present invention, wherein FIG. 2A is an explanatory view showing a display according to a first pattern, and FIG. 2B is based on a second pattern. It is explanatory drawing which showed the display.

[Explanation of symbols]

1 antenna 2 BS digital tuner 3 Demultiplexer (DEMUX) 4 AV decoder 11 OSD circuit 12 System controller 13 Non-volatile memory 15 modem

Claims (9)

[Claims] 1. A digital broadcast receiving apparatus capable of producing a video independently of the video signal based on the received video broadcast program and outputting the video signal,
Digital broadcast reception characterized by having a plurality of combinations of background color and display color of an image created independently and outputting a video signal composed of the background color and display color of the pattern selected by the user apparatus. 2. A digital broadcast receiving apparatus capable of independently producing an image and outputting the image signal in addition to outputting the image signal based on the received image broadcast program,
A digital signal having one or a plurality of conversion information for changing the RGB ratio of a video signal, and being configured to output an image to be created by changing it based on the conversion information selected by the user. Broadcast receiver. 3. A digital broadcast receiving apparatus capable of independently producing an image and outputting the image signal in addition to outputting the image signal based on the received image broadcast program,
It is configured to have a plurality of patterns for the size and / or interval of the characters on the image to be created independently, and to output a video signal of the character size and / or the interval of the pattern selected by the user. A digital broadcast receiving device characterized by. 4. A digital broadcast receiving device capable of outputting a video signal based on received display data in addition to outputting a video signal based on a received video broadcast program, and different colors specified by the display data. A digital broadcast receiving device characterized in that it is configured to automatically change to a color and output a video signal. 5. In a digital broadcast receiving apparatus capable of outputting a video signal based on received display data in addition to outputting a video signal based on a received video broadcasting program, conversion information for changing the RGB ratio of the video signal is provided. One or more are provided, and an image based on the display data is created based on the color specified by the data, and the created video signal is changed and output based on the conversion information selected by the user. A digital broadcast receiver characterized by being constructed. 6. A digital broadcast receiving apparatus capable of outputting a video signal based on received display data in addition to outputting a video signal based on a received video broadcast program, and a character size designated by the display data. A digital broadcast receiving apparatus, characterized in that the video signal is output by changing the length and / or the interval. 7. The digital broadcast receiving apparatus according to claim 1, wherein the digital broadcast receiving apparatus is configured to obtain information regarding a combination pattern of a background color and a display color by downloading. 8. The digital broadcast receiving apparatus according to claim 2 or 5, wherein the digital broadcast receiving apparatus is configured to obtain the conversion information by downloading. 9. A digital broadcast receiving apparatus capable of creating a video image representing a button at a predetermined position on a screen and outputting the video signal, in a non-selected state of the button, a selected state of the button, and a determined state of the button. A digital broadcast receiving apparatus, characterized in that at least one is represented by a dynamic change of a button.