JPH10322622A - Digital television broadcast receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set video and audio characteristics by individual genres in accordance with the taste of a user by executing automatic adjustment in accordance with the video and audio characteristics which are set at the time of outputting a changed program when the output video and audio characteristics are set for the obtained genres. SOLUTION: A table required for generating program guide information and program guide data and an adjusting table by individual genres are stored in RAM 12. The adjusting table by individual genres is constituted of a genre code showing an adjusting object genre, luminance adjusting quantity (output video characteristic) for the genre and sound volume adjusting quantity (output audio characteristic). The user can set luminance adjusting contents and sound volume adjusting contents for the respective genres. When the channel is changed, the genre corresponding to the changed program is obtained by retrieving the prescribed table generated based on program guide information and the like. Then, luminance and sound volume can automatically be adjusted based on adjusting quantity corresponding to the obtained genre.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital television broadcast receiver for receiving a digital broadcast such as a CS broadcast.

[0002]

2. Description of the Related Art In a digital satellite broadcasting system such as CS broadcasting, for example, 70 or more channels are prepared, and a large number of programs are provided. In this system,
The guide information of the currently broadcasted program and the program to be broadcasted in the future is transmitted together with the original program data at predetermined time intervals. A digital television broadcast receiver capable of receiving digital satellite broadcasts has a function of displaying a program guide screen based on program guide information.

[0003] By the way, guide information of a program transmitted from a broadcast station includes information indicating a genre for each program.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a digital television broadcast receiver capable of setting output video characteristics and output audio characteristics according to a user's preference for each genre.

[0005] It is an object of the present invention to provide a digital television broadcast receiver capable of setting output video characteristics and output audio characteristics in advance according to user's preference for each program.

[0006]

A first digital television broadcast receiver according to the present invention comprises: means for setting output video characteristics and / or output audio characteristics for each genre;
Also, when the viewing channel is changed, the genre of the program broadcast on the changed channel is acquired, and if the output video characteristics and / or output audio characteristics for the acquired genre are set, the Means for automatically performing adjustment according to the set output video characteristics and / or output audio characteristics when the program is output.

[0007] A second digital television broadcast receiver according to the present invention includes means for presetting output video characteristics and / or output audio characteristics for each code of a program, and when the viewing channel is changed, When the code of the program broadcast on the channel is acquired, and the output video characteristic and / or the output audio characteristic for the acquired code are set, the set output is output when the changed program is output. It is characterized by comprising means for automatically performing adjustment according to the video characteristics and / or the output audio characteristics.

The output video characteristic is, for example, luminance. The output sound characteristic is, for example, the volume.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of a digital television broadcast receiver for receiving digital satellite broadcasts such as CS broadcasts.

The digital television broadcast receiver includes an antenna 1, a tuner 2, a demultiplexing circuit 3, a video signal generator 4,
Display device 5, audio signal generator 6, speaker 7,
A CPU 8 and an operation unit 9 are provided. The CPU 8 controls the receiver, and includes a ROM 11 for storing the program and the like and a RAM 12 for storing necessary data.

A signal from the antenna 1 is input to the tuner 2. The tuner 2 performs processes such as frequency conversion and digital demodulation. The output of the tuner 2 is sent to the demultiplexing circuit 3. The demultiplexing circuit 3 separates video data, audio data, and program guide information from the data sent from the tuner 2.

The video data is sent to a video signal generator 4,
A video signal constituting the program is generated. The generated video signal is sent to the display device 5. The audio data is sent to the audio signal generation unit 6, where an audio signal is generated. The generated audio signal is sent to the speaker 7.

The program guide information is sent to the CPU 8. The program guide information is stored in the RAM 12. The CPU 8 generates program guide screen data or various setting screen data based on a command from the operation unit 9 and sends the data to the video signal generation unit 4. Thereby, the program guide screen or various setting screens are displayed on the display device 5.

The RAM 12 includes, in addition to a table necessary for generating program guide information and program guide data,
A genre-specific adjustment table as shown in FIG. The genre-based adjustment table includes a genre code indicating a genre to be adjusted, a luminance adjustment amount and a volume adjustment amount for the genre.

The contents of the genre-specific adjustment table are set based on a setting operation by a user. In this example, on a predetermined setting screen, the user can set the brightness adjustment content and the volume adjustment content for each genre. For example, when the user operates the operation unit 9 to select a setting item of genre adjustment from the menu screen, a genre adjustment amount setting screen is displayed.
On the genre-specific adjustment amount setting screen, after selecting a genre, the user sets a luminance adjustment amount (output video characteristic) and a volume adjustment amount (output audio characteristic).

In the example of FIG. 2, for a genre of a movie that is viewed for a relatively long time, data (-10% is used to indicate that the luminance is reduced by 10% in order to reduce eyestrain). Is represented as the brightness adjustment amount. For the news genre, data indicating that the volume is increased by 10% (data representing + 10%) is set as the volume adjustment amount. For the music genre, data indicating that the volume is to be reduced by 10% (data representing −10%) is set as the volume adjustment amount. Further, for an adult genre, data indicating that the volume is reduced by 40% (data representing -40%) is set as the volume adjustment amount.

FIG. 3 shows an automatic adjustment processing procedure based on a genre-specific adjustment table when the viewing channel is changed.

When the viewing channel is changed (step 1), a genre corresponding to the program of the changed channel is obtained (step 2). The genre corresponding to the program of the changed channel is obtained by searching the program guide information or a predetermined table created based on the program guide information. Next, it is determined whether or not the searched genre exists in the genre-specific adjustment table as a genre to be adjusted (step 3).

If the searched genre exists in the genre adjustment table as a genre to be adjusted,
The brightness and the sound volume are adjusted based on the adjustment amounts of the brightness and the sound volume corresponding to the searched genre (step 4). Then, the current automatic adjustment processing ends.

If the searched genre does not exist in the genre-specific adjustment table as a genre to be adjusted, the automatic adjustment process ends this time without adjusting the brightness and volume.

In the above embodiment, the user sets the luminance adjustment amount (output video characteristic) and the volume adjustment amount (output audio characteristic) for each genre, but the luminance adjustment amount (output video characteristic) for each program code. The volume adjustment amount (output sound characteristic) may be set in advance. In a receiver having a function of allowing a user to preset a luminance adjustment amount (output video characteristic) and a volume adjustment amount (output audio characteristic) for each program code, when a viewing channel is changed, the broadcast is broadcast on the changed channel. If the output video characteristic and the output audio characteristic for the acquired code are set and the output program characteristic after the change is output, the set output video characteristic and the output audio characteristic are set. Adjustment according to the characteristics is automatically performed.

[0024]

According to the present invention, output video characteristics and output audio characteristics can be set for each genre according to the user's preference. According to the present invention, output video characteristics and output audio characteristics can be set in advance for each program according to the user's preference.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a digital television broadcast receiver.

FIG. 2 is a schematic diagram showing the contents of an adjustment table.

FIG. 3 is a flowchart illustrating an automatic adjustment processing procedure based on a genre-specific adjustment table when a viewing channel is changed.

[Explanation of symbols]

 Reference Signs List 1 antenna 2 tuner 3 demultiplexing circuit 4 video signal generation unit 5 display device 6 audio signal generation unit 7 speaker 8 CPU 9 operation unit 11 ROM 12 RAM

Claims (3)

[Claims] 1. A means for setting output video characteristics and / or output audio characteristics for each genre, and when a viewing channel is changed, a genre of a program to be broadcast on the changed channel is obtained and obtained. If the output video characteristics and / or output audio characteristics for the selected genre are set, the adjustment according to the set output video characteristics and / or output audio characteristics is automatically performed when the changed program is output. Digital television broadcast receiver comprising: 2. A means for presetting output video characteristics and / or output audio characteristics for each program code, and acquiring a program code broadcast on the changed channel when the viewing channel is changed. When the output video characteristics and / or output audio characteristics for the acquired code are set, the output program and / or output audio characteristics according to the set output video characteristics and / or output audio characteristics are output when the changed program is output. Means for automatically making adjustments, a digital television broadcast receiver comprising: 3. The digital television broadcast receiver according to claim 1, wherein the output video characteristic is luminance and the output audio characteristic is volume.