JP2008306483A - Broadcast receiver, and operation setting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily set image quality adjustment or the like into an optimal state in accordance with the area wherein a broadcast receiver is used. <P>SOLUTION: A video signal processing section 21 performs image quality adjustment or the like. An audio signal processing section 31 performs sound quality adjustment or the like. When it is discriminated that an area is selected by a user based on an operating signal PS supplied from a user interface section 43, a control section 41 performs setting of the image quality adjustment that the video signal processing section 21, or of the sound quality adjustment that the audio signal processing section 31 performs, in accordance with the selected area. Therefore, setting of image quality adjustment or sound quality adjustment is automatically performed in accordance with the selected area, so that broadcast contents or the like can be easily presented in a state suitable for the area. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a broadcast receiving apparatus and a content reproduction method. Specifically, by performing settings such as image quality adjustment corresponding to the selected region, viewing of broadcast content and the like can be performed in a state suitable for the region.

  The conventional broadcast receiving apparatus can receive television broadcasts of various broadcasting systems. In Patent Document 1, depending on the type of broadcasting system, ghost reduction processing, Y / C separation processing, noise reduction are performed. An electronic device that can display video data with sufficiently high image quality by performing processing or the like is disclosed.

  Further, Patent Document 2 discloses an electric device that enables processing items displayed on the respective menu screens to be changed after shipment according to the shipping destination.

JP 2006-33739 A JP 2006-4014 A

  By the way, in a broadcast receiving apparatus, for example, a television receiving apparatus, settings of image quality and sound quality are set in advance so as to be optimal in an average value or in some areas. However, in television broadcasting, even if the broadcasting system is the same, there are differences in picture making and broadcast signal quality depending on the region (country) where the broadcasting is performed. For example, in some countries, picture creation with a reduced sharpness may be performed, or a broadcast signal having many noise components and a reduced quality may be transmitted. In addition, there are differences in viewers' preferences. For example, in a country where white races occupy a large amount, it is preferable to set the saturation to be low so that the skin color is not displayed in blue or red. However, if settings such as image quality and sound quality are set in advance at the time of initial setting, a region (country) in which broadcast content cannot be reproduced with optimum image quality and sound quality occurs.

  The television receiver is provided with a menu screen, and various settings can be changed using the menu screen. Therefore, even if the image quality and sound quality settings are not optimally set in advance, the image quality and sound quality settings can be changed by using the menu screen. However, in order to optimize the image quality and sound quality settings, the operation of changing the settings must be performed again using the menu screen. Therefore, the operation of the television receiver can be easily optimized. Can not.

  Therefore, according to the present invention, settings such as image quality adjustment can be easily performed in an optimum state according to the region where the broadcast receiving apparatus is used.

  The concept of the present invention is to make it possible to present broadcast contents and the like in a state suitable for the area by performing settings such as image quality adjustment according to the area where the broadcast receiving apparatus is used.

  The broadcast receiving apparatus according to the present invention is a broadcast receiving apparatus capable of performing channel preset according to a selected area, a video signal processing unit that performs image quality adjustment, a control unit that controls the operation of the video signal processing unit, A user interface unit for selecting a region is provided, and when the region is selected via the user interface unit, the control unit performs setting of image quality adjustment performed by the video signal processing unit corresponding to the selected region. Is to do.

  The operation setting method according to the present invention is an operation setting method for a broadcast receiving apparatus that can perform channel presets according to a selected region, and is selected by a user as a control unit that performs operation setting for the broadcast receiving apparatus. And a step of setting image quality adjustment to be performed by a signal processing operation corresponding to the selected region.

  According to the present invention, the region selected by the user is determined, and the image quality adjustment is set in correspondence with the selected region. For this reason, the image quality adjustment setting is automatically performed in accordance with the selected region, so that the broadcast content and the like can be easily presented in a state suitable for the region.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of a broadcast receiving apparatus according to the present invention, for example, a television receiving apparatus.

  The tuner 11 of the television receiver 10 selects a desired channel from analog or digital terrestrial broadcasting or satellite broadcasting based on a channel selection control signal CTtu from a control unit 41, which will be described later. SVtu and audio signal SAtu are supplied to the input switching unit 13.

  The input terminal 12 is used to connect an external device that reproduces video content and audio content. The video signal SVex and the audio signal SAex input from the external device are supplied to the input switching unit 13.

  Based on the selection control signal CTse from the control unit 41, the input switching unit 13 selects the video signal SVtu and audio signal SAtu supplied from the tuner 11, or the video signal SVex and audio signal SAex input from an external device. The selected video signal SVa is supplied to the video signal processing unit 21, and the selected audio signal SAa is supplied to the audio signal processing unit 31, respectively.

  The video signal processing unit 21 adjusts the image quality of the video signal SVa selected by the input switching unit 13 based on the video control signal CTv from the control unit 41, and displays the video signal SVb after the image quality adjustment on the display superimposing unit 22. To supply. The video signal processing unit 21 performs contrast adjustment, noise reduction processing, brightness adjustment, color adjustment (hue, saturation adjustment), and the like as image quality adjustment as necessary. The video signal processing unit 21 not only adjusts the image quality, but also, for example, an I / P conversion process for converting an interlaced video signal into a progressive video signal, and horizontal and vertical directions according to the resolution of the display unit 24 described later. If necessary, scaling processing for adjusting the number of pixels, frame rate conversion processing of the video signal, gamma correction, and the like are also performed.

  The display superimposing unit 22 multiplexes a display signal such as a menu display on the video signal SVb output from the video signal processing unit 21 based on the on-screen control signal CTosc from the control unit 41, and displays it as a video signal SVc. 23.

  The display driving unit 23 is configured using, for example, a flat panel display device such as a PDP (Plasma Display Panel), an LCD (Liquid Crystal Display), an FED (Field Emission Display), an organic EL (Electro Luminescence), or a cathode ray tube. A display unit 24 is connected. The display driving unit 23 generates a driving signal DRv based on the video signal SVc supplied from the display superimposing unit 22 and supplies the driving signal DRv to the display unit 24, so that the content is reproduced on the screen of the display unit 24 by broadcast content or an external device. The video of the selected content is displayed. Various menu displays are also performed.

  The audio signal processing unit 31 to which the audio signal SAa selected by the input switching unit 13 is supplied performs sound quality adjustment and volume adjustment, and supplies the audio signal SAb after the adjustment processing to the audio signal output unit 32. A speaker 33 is connected to the audio signal output unit 32, and an audio output signal SAc is generated based on the audio signal SAb supplied from the audio signal processing unit 31, and the speaker 33 is driven by the audio output signal SAc. Audio of broadcast content and content played on external devices.

  A memory 42 and a user interface unit 43 are connected to the control unit 41. The memory 42 stores a program for operating the television receiver, various setting information, and the like. The user interface unit 43 includes an operation key, a remote control signal receiving unit, and the like, and generates an operation signal PS corresponding to a user operation and supplies the operation signal PS to the control unit 41.

  The control unit 41 executes the program read from the memory 42, and based on the operation signal PS, various control signals such as a channel selection control signal CTtu, a selection control signal CTse, a video control signal CTv, an audio control signal CTa, an on-screen By supplying the control signal CTosc, the operation of the television receiver is switched according to the user operation. For example, the control unit 41 performs channel preset according to the region selected by the user, generates preset information and stores it in the memory 42, and determines that the channel switching operation has been performed by the operation signal PS. At this time, the channel selection control signal CTtu is generated so as to sequentially switch the channels registered in the preset information. In this manner, broadcast programs that can be viewed in the area selected by the user can be sequentially switched.

  In addition, the control unit 41 reads various setting information stored in the memory 42 and generates each control signal described above, thereby setting each unit. For example, the channel selected by the tuner 11 at the end of the operation of the television receiver is stored, and when the operation of the television receiver is performed again, the stored channel is automatically selected. . In addition, a so-called last channel memory operation is performed in which the signal selected by the input switching unit 13 at the end of the operation is automatically selected when the operation of the television receiver is performed again. Further, setting states such as image quality adjustment and sound quality adjustment are stored, and when the television receiving apparatus is operated, image quality adjustment and sound quality adjustment are performed in the stored setting state.

  In the television receiver configured as described above, when selection of a region where the television receiver is used is performed, image quality adjustment, sound quality adjustment, and the like are performed so that presentation of broadcast content and the like can be performed in a state suitable for the region. Set automatically.

  Next, the operation of the television receiver will be described. FIG. 2 shows an initial setting operation that is performed when the user purchases and operates the television receiving apparatus for the first time.

  In step ST1, the control unit 41 displays a language selection menu. The control unit 41 controls the display superimposing unit 22 to generate a display signal for language selection menu display, and supplies this display signal to the display driving unit 23 as the video signal SVc. FIG. 3 shows an example of a language selection menu display screen. A button display BP indicating a selectable language is provided on the screen, and a button display BPs of a language designated as a candidate (hereinafter referred to as “selected language button display”) is displayed as a button display of another language. Displayed in an identifiable manner.

  In step ST2, the control unit 41 determines whether or not a language has been selected. If the language is not selected, the process returns to step ST2, and if the language is selected, the process proceeds to step ST3. When the control unit 41 determines based on the operation signal PS that the language switching operation designated as a candidate has been performed, the control unit 41 switches the selected language button display BPs shown in FIG. 3 to indicate a new language. The button display is the selected language button display BPs. Further, when the control unit 41 determines that the language determination operation has been performed based on the operation signal PS, the control unit 41 sets the language associated with the selected language button display BPs as the use language. When the language is set in this way, the control unit 41 performs subsequent menu display, various setting displays, and the like in the selected language.

  In step ST3, the control unit 41 performs area selection menu display. The control unit 41 controls the display superimposing unit 22 to generate a display signal for displaying the area selection menu, and supplies this display signal to the display driving unit 23 as the video signal SVc. FIG. 4 exemplifies a display screen for displaying the area selection menu. A button display BQ indicating a country name as a selectable region is provided on the screen, and a button display BQs of a country name designated as a candidate (hereinafter referred to as “selected country button display”) is a button of another country name. Are displayed in an identifiable manner.

  In step ST4, the control unit 41 determines whether or not a region has been selected. Here, when the area is not selected, the process returns to step ST4, and when the area is selected, the process proceeds to step ST5. When the control unit 41 determines based on the operation signal PS that the operation of switching the country name designated as a candidate has been performed, the control unit 41 switches the selected country button display BQs shown in FIG. The display is the selected country button display BQs. When the control unit 41 determines that the region selection operation has been performed based on the operation signal PS, the control unit 41 selects the country associated with the selected country button display BQs as the region where the television receiver is used. To do.

  In step ST5, the control unit 41 reads the setting information. Here, as shown in FIG. 5, the memory 42 stores in advance a table indicating a region where the television receiver is used and setting information corresponding to the region, for example, image quality setting information and sound quality setting information. The control unit 41 reads the setting information corresponding to the area selected in step ST4, and proceeds to step ST6. For example, when the country selected in step ST4 is “RG1”, the control unit 41 reads the image quality setting information “CV-a” and the sound quality setting information “CA-a”. When the country selected in step ST4 is “RG3”, the control unit 41 reads the image quality setting information “CV-c” and the sound quality setting information “CA-b”.

  In step ST6, the control unit 41 performs image quality / sound quality setting. Based on the setting information read out in step ST5, the control unit 41 performs settings for image quality adjustment performed by the video signal processing unit 21 and sound quality adjustment performed by the audio signal processing unit 31.

  FIG. 6 exemplifies the setting contents of the image quality setting and the sound quality setting. The maximum adjustment range of the backlight is “0 (dark) to 10 (bright)”, and the maximum adjustment range of contrast is “0 (small contrast difference)”. -100 (high contrast), brightness maximum adjustment range is "0 (dark)-100 (bright)", bass maximum adjustment range is "-10 (weak) to +10 (strong)", high tone maximum adjustment The range is assumed to be “−10 (weak) to +10 (strong)” or the like.

  Here, in the image quality setting information “CV-a” read when the country selected in step ST4 is “RG1”, the backlight is “8”, the contrast is “80”, and the brightness is “50”. And so on. Therefore, the control unit 41 sets the operation of the video signal processing unit 21 so that the image quality adjustment indicated by the image quality setting information “CV-a” is performed. Also, the read sound quality setting information “CA-a” indicates that the bass is “+2”, the treble is “−2”, and the like. Accordingly, the control unit 41 sets the operation of the audio signal processing unit 31 so that the sound quality adjustment indicated by the sound quality setting information “CA-a” is performed.

  Similarly, in the image quality setting information “CV-c” read when the country selected in step ST4 is “RG3”, the backlight is “10”, the contrast is “80”, and the brightness is “60”. And so on. Therefore, the control unit 41 sets the operation of the video signal processing unit 21 so that the image quality adjustment indicated by the image quality setting information “CV-c” is performed. Also, the read sound quality setting information “CA-b” indicates that the bass is “0”, the treble is “0”, and the like. Therefore, the control unit 41 sets the operation of the audio signal processing unit 31 so that the sound quality adjustment indicated by the sound quality setting information “CA-b” is performed.

  In step ST7, the control unit 41 displays an auto preset (auto tuning) selection menu. The control unit 41 controls the display superimposing unit 22 to generate a display signal for displaying the auto preset selection menu, and supplies this display signal to the display driving unit 23 as the video signal SVc. FIG. 7 illustrates a display screen for displaying the auto preset selection menu. On the screen, a button display BRa for selecting the auto preset operation and a button display BRb for not selecting the auto preset operation are provided.

  In step ST8, the control unit 41 determines whether or not the auto preset operation is selected. When it is determined based on the operation signal PS that the selection operation of the button display BRa for selecting the auto preset operation has been performed, the control unit 41 proceeds to step ST9 and displays the button display that does not select the auto preset operation. When it is determined based on the operation signal PS that the BRb selection operation has been performed, the initial setting is terminated.

  In step ST9, the control unit 41 performs an auto preset operation. The control unit 41 performs channel preset according to the area selected in step ST4, automatically detects receivable channels, and sets the detected channel, information for selecting the detected channel, etc. as preset information. Is stored in the memory 42. In this way, the preset information is stored in the memory 42, and by using this preset information, the user can easily select a desired channel, and the initial setting is completed.

  As described above, in the television receiver, the image quality setting and the sound quality setting are automatically performed according to the region selected by the user. For this reason, it is possible to easily set the image quality adjustment and the sound quality adjustment to an optimum state without individually resetting the image quality adjustment and the sound quality adjustment according to the region to be used.

  For this reason, when a country with a large white race is selected, it is possible to automatically set the saturation to a lower level. Can be easily prevented from being displayed in blue or red. Also, even if the frequency characteristics of the broadcast program sound are different, the high and low sound levels are automatically adjusted according to the selected area, so the sound is output with easy-to-hear frequency characteristics. be able to.

By the way, in the image quality setting, not only items that can be changed by the user using the menu display, such as backlight, contrast, and brightness, but also setting items that are not displayed in the menu display are selected. You may make it set corresponding to an area.
For example, the noise removal characteristic in the television receiver can be switched, and the noise removal characteristic can be automatically switched according to the area. In this case, a noise removal filter is provided in the video signal processing unit, and the noise removal filter is configured to be able to switch settings such as filter strength and cutoff frequency.

  Here, when a broadcast station transmitting a broadcast signal that can be received in the selected area transmits a broadcast signal with a lot of noise superimposed, or when the signal level of the broadcast signal transmitted from the broadcast station is small, noise is superimposed. If the video signal system used in the broadcasting station is a noisy system, the control unit 41 sets the noise removal characteristics so that the noise removal becomes stronger when such a region is selected. Thus, video display with less noise is performed. Also, when a broadcast station that transmits a broadcast signal that can be received in the selected area transmits a broadcast signal with low noise, or when the signal level of the broadcast signal transmitted from the broadcast station is large and is not easily affected by noise When the video signal system used in the broadcasting station is a system with less noise, the control unit 41 sets the noise removal characteristics so that noise removal is weak when such a region is selected, Prevents image quality degradation due to noise removal. In this way, even setting items that cannot be changed by the user can be set to an optimum setting state according to the region.

  Further, when the image quality setting and the sound quality setting are automatically performed corresponding to the region, the adjustment range may be switched according to the region. Here, when the adjustment range is to be switched according to the region, the television receiver sets the state when the image quality setting and the sound quality setting are performed according to the region by the initial setting as a standard state, and this standard state is set. Set the adjustment range based on.

  FIG. 8 shows the adjustment range. For example, when the brightness is “50” in the image quality setting “CV-a” for the region “RG1”, the adjustment range is set with the brightness “50” as the center value. Similarly, when the brightness is “40” in the image quality setting “CV-b” for the region “RG2”, the adjustment range is set with the brightness “40” as the center value. Further, when the brightness is “60” in the image quality setting “CV-c” for the region “RG3”, the adjustment range is set with the brightness “60” as the center value. The other adjustment items may be the same adjustment range as the brightness, or may be different for each adjustment item.

  In this way, the center value of the adjustment range is switched according to the selected area, and the user can adjust the setting based on the state set according to the selected area. Further, by setting the adjustment range according to the region, it is possible to prevent the adjustment range from being unnecessarily widened depending on the region.

  In addition, when the user can switch the noise removal characteristics, for example, when the noise removal effect can be switched between four levels of “OFF”, “weak”, “medium”, and “strong”, Accordingly, the setting may not only be switched to any one of “OFF”, “weak”, “medium”, and “strong”, but even with the same setting, the noise removal characteristics may be changed depending on the selected region. For example, even if the noise removal characteristic is set to “medium” and the noise removal characteristic is set to “medium”, noise removal is strongly performed in areas where the noise of the broadcast signal is high, and noise removal is performed in areas where the noise of the broadcast signal is low Set to be weak. In this way, it is possible to switch the noise removal characteristics corresponding to the selected area. For this reason, it is possible to prevent the noise removal characteristic from being set to “strong” when the area where the noise of the broadcast signal is large is selected, and the user from being able to further enhance the noise removal.

  In the above-described embodiment, the television receiving apparatus has been described. However, the broadcast receiving apparatus may be a set top box or the like. In this case, the set-top box and the monitor device are connected so that the user can select the region as the menu display as described above on the screen of the monitor device, or the region is displayed on the display unit of the set-top box. The area information is input by providing an input display of the information to be shown.

  In the above-described embodiment, setting information for each region is stored in the memory 42, and setting information corresponding to the selected region is read from the memory 42 to perform image quality adjustment and sound quality adjustment setting. However, a plurality of settings are provided in advance in the video signal processing unit 21 and the audio signal processing unit 31, and the control unit 41 is selected from a plurality of settings registered in advance in the video signal processing unit 21 and the audio signal processing unit 31. The same effect can be obtained even if the setting corresponding to the region is specified.

It is a figure which shows the structure of a television receiver. It is a flowchart which shows initial setting operation | movement. It is a figure which shows a language selection menu display screen. It is a figure which shows an area selection menu display screen. It is a figure which shows an image quality / sound quality setting table. It is a figure which shows the setting content of an image quality setting and a sound quality setting. It is a figure which shows an auto preset menu display screen. It is a figure for demonstrating the adjustment range.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Television receiver, 11 ... Tuner, 12 ... Input terminal, 13 ... Input switching part, 21 ... Video signal processing part, 22 ... Display superimposition part, 23 ... Display drive unit, 24 ... display unit, 31 ... audio signal processing unit, 32 ... audio signal output unit, 33 ... speaker, 41 ... control unit, 42 ... memory, 43 ... User interface section

Claims (9)

In a broadcast receiving apparatus that can perform channel presets according to the selected region,
A video signal processor for adjusting image quality;
A control unit for controlling the operation of the video signal processing unit;
A user interface unit for selecting the area;
The control unit, when the region is selected through the user interface unit, performs setting of image quality adjustment performed by the video signal processing unit in correspondence with the selected region. Receiver device. A memory unit that stores setting information for image quality settings for each region is provided.
The broadcast receiving apparatus according to claim 1, wherein the control unit reads setting information corresponding to the selected region from the memory unit, and sets the image quality adjustment based on the read setting information. . The broadcast receiving apparatus according to claim 1, wherein the control unit switches an adjustment range of the image quality adjustment corresponding to the selected region. The broadcast receiving apparatus according to claim 1, wherein the control unit displays a region selection menu at the time of initial setting, and can select a region from the region selection menu display. The video signal processing unit performs noise removal,
The broadcast receiving apparatus according to claim 1, wherein the control unit sets a noise removal characteristic corresponding to the selected area. An audio signal processing unit is provided to adjust the sound quality,
The broadcast receiving apparatus according to claim 1, wherein the control unit performs setting of sound quality adjustment performed by the audio signal processing unit in association with the selected region. A memory unit that stores the setting information of sound quality settings for each region is provided.
7. The broadcast receiving apparatus according to claim 6, wherein the control unit reads setting information corresponding to the selected area from the memory unit, and sets the sound quality adjustment based on the read setting information. . The broadcast receiving apparatus according to claim 6, wherein the control unit switches an adjustment range of the sound quality adjustment corresponding to the selected area. In the operation setting method of the broadcast receiving apparatus capable of performing channel preset according to the selected region,
In the control unit for setting the operation of the broadcast receiving device,
Determining the region selected by the user;
An operation setting method comprising a step of setting image quality adjustment performed in the signal processing operation in correspondence with the selected region.

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