JP4604017B2 - Broadcast receiving apparatus and control method thereof - Google Patents

Description

  The present invention relates to a broadcast receiving apparatus and a control method thereof, and more particularly to a broadcast receiving apparatus and a control method thereof capable of automatically adjusting display image quality and sound quality according to a broadcast program.

Patent Document 1 proposes a television receiver that acquires the genre of a broadcast program being viewed from electronic program guide (EPG) information and the like and automatically adjusts the display image quality according to the genre.
In addition, it has been proposed to perform similar automatic adjustment for sound (Patent Document 2).

JP 2002-158941 A JP 2001-326875 A

  According to the above-mentioned prior art, by storing the image quality and sound quality settings that are considered appropriate for each program genre, and automatically changing the image quality and sound quality settings according to the acquired program genre, Viewing can be performed using the capabilities of the device while saving the user's trouble.

For example, for music programs, the picture quality is automatically adjusted to a setting that emphasizes low sound and the sound quality is automatically adjusted, and for a variety program, the image quality is automatically adjusted to high brightness and the sound quality is automatically adjusted to a setting that emphasizes the midrange. .
However, there are cases where a plurality of genres are assigned to a program, and a problem arises in such a case.

  For example, when two genres of “music” and “variety” are given to the program information, it is conceivable to make adjustments according to one of the genres. Conventionally, it is not considered about which attribute is automatically adjusted for such a program with a plurality of different attributes, and the attribute that appears first in the data structure is selected at best. Met.

  An object of the present invention is to solve such a problem of the prior art, and a broadcast capable of more appropriately performing automatic adjustment of images and sounds of a program to which a plurality of different attribute information is assigned. It is an object to provide a receiving apparatus and a control method thereof.

To achieve the above object, according to one aspect of the present invention, there is provided a broadcast receiving apparatus for automatically adjusting the the display image quality and / or sound quality this program based on the attribute information of the broadcast program, the plurality of attribute information for each, the display image quality and / or sound quality and setting storage means for adjusting the volumes of association with each other, the information acquisition means for acquiring attribute information of the broadcast program to be viewed, the attribute acquired by the information acquisition means Yes a setting acquiring means for acquiring the adjustment contents corresponding to the information from the setting storage means, and adjusting means for adjusting and outputting the display image quality and / or sound of the broadcast program to be viewed according to the adjustment contents setting acquiring unit acquires and, if the attribute information of the plurality of types is acquired by the information acquisition means, setting acquisition unit, attribute information used to search for a broadcast program to be viewed, created from attribute information of the broadcast program viewed in the past Is Statistics of the attribute information, statistics attribute information generated from the attribute information of the broadcast program viewing or recording is reserved, based on either selects one of the plurality of types of attribute information There is provided a broadcast receiving apparatus characterized by acquiring adjustment contents corresponding to selected attribute information .

In order to achieve the above-mentioned object, according to another aspect of the present invention, there is provided a control method for a broadcast receiving apparatus that automatically adjusts display image quality and / or sound quality of a program based on attribute information of the broadcast program. an information acquisition step of acquiring attribute information of the broadcast program to be viewed, the adjustments corresponding to the attribute information acquired by the information acquisition step, for each of a plurality of attribute information, display image quality and / or sound quality of a setting acquisition step of acquiring an adjustment Description from setting storage unit that stores in association, an adjustment step of adjusting and outputting the display image quality and / or sound of the broadcast program to be viewed according to the adjustment contents setting acquisition process acquires has, if the attribute information of the plurality of types is acquired by the information acquisition step, setting acquisition process, the attribute information used to search for a broadcast program to be viewed, attribute information of the broadcast program viewed in the past Generated from Statistics of attribute information, statistics attribute information generated from the attribute information of the broadcast program viewing or recording is reserved, based on either, you select one of a plurality of types of attribute information Then, there is provided a control method for a broadcast receiving apparatus, wherein adjustment contents corresponding to the selected attribute information are acquired .

  With such a configuration, according to the present invention, there is provided a broadcast receiving apparatus capable of more appropriately performing automatic adjustment of images and sounds of a program to which a plurality of different attribute information is assigned, and a control method thereof. For the purpose.

<First Embodiment>
Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.
FIG. 1 is a block diagram showing a main configuration example of a digital television as an example of a broadcast receiving apparatus according to the first embodiment of the present invention. Note that in this specification, a digital television means a device that can receive digital broadcast and output video and audio, and is not only a so-called television receiver but also an information processing terminal (such as a personal computer) having a television reception function. ) And communication devices (such as mobile phones).

  In the digital television 10 shown in FIG. 1, the broadcast wave signal is received by the antenna 15 and input to the tuner 20. The tuner 20 performs processes such as demodulation, error correction, and descrambling on the input signal to generate digital data (TS data) in a format called a transport stream (TS). In the TS data, video data, audio data, and program information (information on items such as program name, program content, start time, end time, genre, etc.) are time-division multiplexed.

  The TS data is transmitted in units of packets, and data called PID (Packet Identification) is added to the head portion of the packet. By reading this PID, the demultiplexer 21 identifies and separates video data, audio data, and program information related to the selected channel, that is, the selected broadcast program. Hereinafter, a broadcast program is simply referred to as a program.

  Program information will be described. In the present embodiment, it is assumed that the data constituting the program information is program arrangement information (SI: Service Information) defined by the Association of Radio Industries and Businesses (ARIB).

The main information included in the program sequence information includes
-SDT (Service Description Table) that transmits information about organized channels, such as the names of organized channels and broadcaster names,
-EIT (Event Information Table) that transmits information about the program, such as the name of the broadcast program, the broadcast date and time, and description of the content,
-TDT (Time and Date Table) that transmits current date and time information,
Etc.
Further, the EIT includes a content descriptor, and the content descriptor includes a value indicating the genre of the program.

  The demultiplexer 21 extracts video data and audio data related to a designated program from TS data in which video, audio data, and program information for a plurality of channels input from the tuner 20 are multiplexed. The video data is output to the video decoder 22 and the audio data is output to the audio decoder 23.

  The video decoder 22 performs MPEG2 decoding on the video data input from the demultiplexer 21 and outputs the decoded video data to the video processing circuit 30.

The video processing circuit 30 performs image quality adjustment processing such as brightness adjustment processing and color conversion processing on the input video data based on an instruction from the image quality / sound quality setting unit 40.
Video data output from the video processing circuit 30 is displayed on a display unit 50 such as an SED panel, a PDP, or a liquid crystal display panel through an OSD (on-screen display) processing circuit 35.

  The audio decoder 23 performs MPEG2 decoding on the audio data input from the demultiplexer 21 and outputs the decoded audio data to the audio processing circuit 31.

Based on an instruction from the image quality / sound quality setting unit 40, the sound processing circuit 31 performs sound quality adjustment processing such as low-frequency emphasis processing and mid-range emphasis processing and D / A conversion processing on the input sound data. . The analog audio signal output from the audio processing circuit 31 is reproduced by the speaker 55.
The video processing circuit 30 and the audio processing circuit 31 function as adjusting means for adjusting the display image quality and / or sound quality of a broadcast program that is viewed or being viewed.

  The demultiplexer 21 also has a function as information acquisition means, and extracts SI (Service Information) that is program information data including a genre from TS data of a program to be viewed or being viewed. The SI extracted from the TS data is output to the program information decoder 25. The program information decoder 25 analyzes the program information SI, converts it into a program information data format, and outputs it to the program information storage unit 26 as program information data. The format of the program information data may be any format. For example, a PID (Program ID) assigned to each program may be used as a key, and a configuration such as a table format storing information such as broadcast time, program name, and program genre may be adopted.

  The program information storage unit 26 stores program information data. Program information is periodically received by the tuner 20, and the program information storage unit 26 always stores the latest program information data via the program information decoder 25.

  In the image quality / sound quality setting value storage unit 41 as the setting storage means, the type of predetermined attribute information (program genre in the present embodiment) included in the program information and the adjustment contents of the image quality and sound quality are associated with each other. Is remembered. The stored contents of the image quality / sound quality setting value storage unit 41 may be changeable. For example, it is conceivable that the user changes the stored content through an operation of the operation unit 60 described later, or downloads new data from data included in a broadcast wave signal or an external device. Further, the position of the image quality / sound quality setting value storage unit 41 is not limited as long as the digital television 10 can communicate. For example, when the digital television 10 can communicate using a computer network, it may be connected to a network such as the Internet or a LAN.

FIG. 2 is a diagram illustrating an example of setting values stored in the image quality / sound quality setting value storage unit 41.
In the present embodiment, it is assumed that the image quality setting parameters are luminance, contrast, and saturation, and the sound quality setting parameters are low, middle, and high frequencies. Each parameter takes an integer value of 1-5, 3 means standard, 4 is higher than 3 (larger), and 5 is higher than 4 (larger). Further, 2 means lower (smaller) than 3 and 1 means lower (smaller) than 2.

As shown in FIG. 2, the image quality adjustment content in this embodiment is
Genre Image quality adjustment
News: Standard (no adjustment)
Sports: Overall high Drama: Overall low Music: Decrease brightness, increase saturation Variety: Overall slightly high Movie: Overall low Education: Standard (no adjustment)
Is stored.

The sound quality adjustment content is
Genre Sound quality adjustment contents
News: Increase midrange, lower low (enhance audio)
Sport: Standard (no adjustment)
Drama: Lowering the low range Music: Raising the low range and high range, lowering the mid range Variety: Lowering the low range Movie: Increasing the low range Liberal Arts: The value that lowers the low range is stored.

  There are no particular restrictions on the number of adjustment stages and the types of parameters. For example, adjustment at a finer level may be performed, or the frequency band of the sound range may be subdivided. Further, as shown as adjustment contents of each genre of news, sports, and culture, it is not necessary to adjust both image quality and sound quality, and only one of them may be adjusted.

  The image quality / sound quality setting unit 40 as setting acquisition means reads the setting content corresponding to the genre determined by the genre determination unit 47 from the image quality / sound quality setting value storage unit 41, and sends it to the video processing circuit 30 and the audio processing circuit 31. Then, a processing instruction corresponding to the read value is performed.

The program search processing unit 45 performs a process of searching for a program having a genre attribute value corresponding to the genre input by the user from the programs stored in the program information storage unit 26.
The search genre storage unit 46 stores the type of genre used as a search key as an example of attribute information of a program used by the program search processing unit 45 to search for a program being viewed.

  The genre determination unit 47 serving as a selection unit determines the display image quality and / or sound quality of the broadcast program from the type of predetermined attribute information (genre in the present embodiment) included in the program information of the broadcast program that is being viewed or viewed. One genre to be used for adjustment is determined. Then, the genre determining unit 47 notifies the image quality / sound quality setting unit 40 of the determined genre. In this embodiment, the genre determination unit 47 reads out the type of genre stored in the search genre storage unit 46 in accordance with the notification from the program search processing unit 45 and notifies the image quality / sound quality setting unit 40 of it.

  The OSD processing circuit 35 superimposes a channel being viewed, a program title, time, various setting menus, a program search screen, an EPG (electronic program guide), a cursor, and the like on the displayed video and displays them on the display unit 50. Let

  The operation unit 60 notifies the control unit 65 of an instruction from the user. The operation unit 60 includes a switch and a remote control signal receiving unit attached to the main body of the digital television 10 and a remote controller.

  The control unit 65 is configured by, for example, a microcomputer, and controls each component of the digital television 10 by reading and executing a control program stored in a program memory 62 which is a nonvolatile memory, for example.

  Of the functional blocks shown in FIG. 1, some or all of the functional blocks excluding the tuner 20, the display unit 50, the speaker 55, and the operation unit 60 can be realized in software. In that case, the operation unit of the functional block realized by software is the control unit 65.

The program search processing operation of the digital television 10 of the present embodiment having the above configuration will be described with reference to the flowchart shown in FIG.
First, when a user presses a program search key included in the operation unit 60 or selects a program search from a menu screen and presses a decision key, a program search instruction is input to the control unit 65. The process of the flowchart shown in FIG. 3 is started.

  At this time, it is assumed that 5 channels are being broadcast, and the program names and genres of each channel are as shown in FIG. Accordingly, the program information storage unit 26 also stores these program information. Here, the program “Broadcast Person” being broadcast on channel 2 is given two genres of “variety” and “music”.

Step S100: Display of Search Screen The control unit 65 instructs the program search processing unit 45 to start the search process.
In response to an instruction from the control unit 65, the program search processing unit 45 requests the OSD processing circuit 35 to display a screen for selecting the type of attribute information used as a search key. Here, the type of genre is used as the search key, and therefore the attribute information selection screen is a genre selection screen. In response to a request from the program search processing unit 45, the OSD processing circuit 35 superimposes the genre selection screen on the displayed video and causes the display unit 50 to display it.

  An example of the genre selection screen in this embodiment is shown in FIG. In FIG. 5, a cursor 300 represents the currently selected genre.

Step S110: Waiting for input of search genre When the user operates the up direction key and the down direction key included in the operation unit 60, the operation is notified to the OSD processing circuit 35 through the control unit 65 and the program search processing unit 45. . The OSD processing circuit 35 updates the superimposed display content in response to the notified operation. Specifically, the display position of the cursor 300 is changed in response to the operation of the direction key.

Step S120: Store the selected genre When a decision / execution instruction or an equivalent instruction is input from the operation unit 60 while the genre selection screen is displayed, the instruction is transmitted to the OSD processing circuit through the control unit 65 and the program search processing unit 45. 35 is notified. The OSD processing circuit 35 notifies the program search processing unit 45 of the type of genre selected at that time. The program search processing unit 45 stores the type of genre notified from the OSD processing circuit 35 in the search genre storage unit 46.
Here, it is assumed that the genre “music” is selected as a search key. Therefore, the search genre storage unit 46 also stores a value representing the genre “music”.

Step S130: Program Search The program search processing unit 45 searches the programs stored in the program information storage unit 26 (that is, the programs shown in FIG. 2) for programs to which the notified genre is assigned. .
Here, since the genre “music” is selected by the user, “digital theater” and “topical person” to which the genre “music” is assigned are searched.

Step S140: Display Search Result The program search processing unit 45 generates a search result screen and displays it on the display unit 50 through the OSD processing circuit 35. In the present embodiment, the program search processing unit 45 displays a program name as a search result and generates a search result screen that prompts the user to input a program to be viewed.
A display example of the search result screen is shown in FIG.

Step S150: Waiting for input of program to be watched In the same way as waiting for input of a search genre, the cursor on the search result screen displayed on the display unit 50 is moved according to the operation of the operation unit 60. Further, when a determination / execution instruction or an equivalent instruction is input from the operation unit 60 while the search result screen is displayed, the instruction is notified to the OSD processing circuit 35 through the control unit 65 and the program search processing unit 45. The OSD processing circuit 35 notifies the program search processing unit 45 of the program selected at that time.
Here, it is assumed that the user has selected “topical person”.

Step S160: Program Tuning / Display The program search processing unit 45 notifies the control unit 65 of the program selected by the user. The control unit 65 performs necessary control for each unit in the digital television 10 including the tuner 20, selects a channel corresponding to the notified program, that is, the “topical person”, and the display unit 50. To display.

Step S170: Setting for the input genre The program search processing unit 45 notifies the genre determination unit 47 to determine the type of genre used for automatic adjustment and to notify the image quality / sound quality setting unit 40.
The genre determination unit 47 notifies the image quality / sound quality setting unit 40 of the genre in the search genre storage unit 46.

  Here, the genre “music” in the search genre storage unit 46 is one of two types of genres included in the program information of the program selected by the user and “topical person”. Therefore, storing the genre designated as the search key in the search genre storage unit 46 can be said to be an operation of extracting one of a plurality of types of attributes assigned to the program.

  The image quality / sound quality setting unit 40 reads the setting value corresponding to the genre “music” from the image quality / sound quality setting value storage unit 41, and gives the read setting value to the video processing circuit 30 and the audio processing circuit 31.

The video processing circuit 30 performs signal processing such as brightness adjustment processing and color conversion processing based on the setting values given from the image quality / sound quality setting section 40.
The audio processing circuit 31 also performs signal processing such as low-frequency emphasis processing and mid-range emphasis processing based on instructions given from the image quality / sound quality setting unit 40.

As a result,
Image quality: Decrease brightness, increase saturation Sound quality: Adjust display quality and sound quality suitable for music programs by increasing low and high frequencies and decreasing mid frequency.

  Note that in steps S110 and S150 in the flowchart shown in FIG. 3, when the user performs a predetermined cancel operation, the control unit 65 controls each unit of the digital television 10 so as to return to the normal program viewing state.

  As described above, when the program to be viewed is selected based on the search result using the attribute information, the digital television 10 of the present embodiment sets the image quality / sound quality setting corresponding to the attribute value used for the search. Do. For example, a user who performs a search using the genre “music” is considered to intend to view a music program. Therefore, even if another type of genre (for example, “variety”) is assigned to the same program, adjusting the image quality / sound quality adjustment as a “music” program should adjust the image quality / sound quality adjustment that the user intended. It will be.

  Therefore, if the genre “variety” is used for the search even in the same program, image quality and sound quality adjustment are performed as a variety program.

  According to the present embodiment, the user can perform a search (narrowing) based on the attribute type and then select a viewing program from the search result. You can enjoy the audio. At this time, the user does not need to be aware of how many attributes are assigned to the viewing program.

<Second Embodiment>
FIG. 7 is a block diagram showing a main configuration example of the digital television 11 as an example of the broadcast receiving apparatus according to the second embodiment of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

As is clear from a comparison between FIG. 1 and FIG. 7, the digital television 11 of this embodiment has a search history storage unit 70 in addition to the search genre storage unit 46.
When a program is selected from the program search result and viewed, the search history storage unit 70 stores the usage frequency of each type of attribute information as an example of the statistical value of the attribute information used for the search.

  FIG. 8 is a diagram illustrating an example of the contents stored in the search history storage unit 70. The example of FIG. 8 shows a state in which a history of program search using genre attributes, that is, genre types, is stored, as in the first embodiment.

In the example shown in FIG. 8, the number of times of searching by the genre “music” in the past and viewing from the search result is five times.
Search by genre “variety” and watched 3 times from the search results.
Search by genre “sports” and watched once from the search results.
It is shown that.

  When viewing from the program search processing result, the digital television 11 of this embodiment performs image quality / sound quality adjustment based on the type of attribute (for example, genre) used for the search, as in the first embodiment. Do.

  Furthermore, when there are a plurality of program information attributes of a program that has been selected for viewing without program search, image quality / audio adjustment is performed based on the attributes determined using the stored contents of the search history storage unit 70.

The program search processing operation of the digital television 11 of this embodiment will be described using the flowchart shown in FIG. The difference from the first embodiment (FIG. 3) is that
A history storage process is newly added as step S180.

  Specifically, in step S180, the program search processing unit 45 performs an operation of adding +1 to the frequency for each type of genre used for the search. With this operation, a history as shown in FIG. 8 is stored in the search history storage unit 70.

  Since the other operations are the same as those in the first embodiment, it is possible to automatically adjust the settings suitable for the program in step S170. Therefore, also in this embodiment, the user does not need to be aware of whether or not other attributes are assigned to the viewing program by the conventional operation of search (narrowing) by attribute type → selection of the viewing program, and in accordance with the intention. You can enjoy video and sound with adjusted image quality and sound quality.

  In step S120, the program search processing unit 45 may store the genre designated as the search key in a predetermined area of the search history storage unit 70, for example, instead of the search genre storage unit 46. In this case, the search genre storage unit 46 is not necessary.

(Channel selection operation without program search)
Next, in the digital television 11 of the present embodiment, a processing operation for a channel selection operation without program search will be described using the flowchart shown in FIG.

Channel selection without program search is the most common channel selection operation,
-Direct channel selection for directly selecting a channel associated with the pressed button in response to pressing of a button on the operation unit 60, typically a numeric button;
It means up / down channel selection for selecting channels before and after the channel currently being viewed in response to pressing of a button on the operation unit 60, typically a channel selection button.

  When the user selects a channel by these operations, the processing of the flowchart shown in FIG. 10 is started. Here again, it is assumed that the program shown in FIG. 4 is broadcast as in the first embodiment.

Step S200: Program channel selection / display The control unit 65 determines the channel to be selected from the type of button pressed on the operation unit 60, and for each unit in the digital television 10 including the tuner 20. Necessary control is performed, and the program of the channel designated by the user is displayed on the display unit 50.
Here, it is assumed that two channels are designated. As a result, the video and audio related to the program “topical person” are output from the display unit 50 and the speaker 55, respectively.

Step S210: Acquire Program Genre The control unit 65 acquires the current program (viewed program) genre of the selected channel from the program information storage unit 26. As a result, two types of genres, “variety” and “music”, are acquired as predetermined attribute information.

Step S220: Determining whether there are multiple types of genres The control unit 65 determines the type of genre acquired from the program information storage unit 26. If there is one, the process proceeds to step S230, and if there is more than one, the process proceeds to step S240. .
Here, since a plurality of types of genres are acquired, the process proceeds to step S240.

Step S230: Setting for the acquired genre The control unit 65 notifies the image quality / sound quality setting unit 40 of the acquired genre. Then, the same operation as step S170 in FIG. 3 is performed to adjust the image quality and the sound quality.

Step S240: Determination of Genres Used for Adjustment Based on History The control unit 65 notifies the genre determination unit 47 of a plurality of genres acquired in step S210. Here, the genres “variety” and “music” are notified.
In response to this, the genre determination unit 47 reads the search history from the search history storage unit 70, and determines the type of genre with the largest number of past views from the notified plurality of genres.

  Here, for the notified genre of “variety” and “music”, in the search history storage unit 70, the number of views of “variety” is 3, and the number of views of “music” is 5. Therefore, the genre determination unit 47 determines that “music” is a genre used for adjustment.

Step S250: Setting for the determined genre is performed.
The genre determining unit 47 notifies the image quality / sound quality setting unit 40 of the determined genre, that is, “music”. Then, the same operation as in step S170 in FIG. 3 is performed to adjust the setting suitable for the music program.

  With the above operation, according to the present embodiment, even when a plurality of types of predetermined attribute information are assigned to the viewing program, the first program is selected when the viewing program is selected through the program search. The same effect as in the embodiment can be obtained. Furthermore, according to the present embodiment, channel selection (direct channel selection, up / down channel selection, etc.) that does not go through program search is also based on statistical values of attribute information (for example, genre) of broadcast programs that have been viewed in the past. The type of attribute information used for adjustment (for example, the type of genre) is determined. Therefore, it is possible to automatically provide a viewing setting with high possibility according to the user's intention.

  In the present embodiment, the stored contents of the search history storage unit 70 are updated every time a viewing program is selected through the program search process, but may be updated under other conditions. For example, when viewing of a certain program is started and viewing is continued for a certain time (for example, 10 minutes), the history value of the search history storage unit 70 corresponding to the genre of the program being viewed may be incremented by one. Good. Even in this way, since it is possible to store a history of what genres of programs the user has watched, the above-described effects can be obtained by using the search history storage unit 70. is there.

  Thus, it can be said that this embodiment is an embodiment in which the genre used for automatic image quality / sound quality adjustment is determined based on the statistical value of the attribute information of the program viewed in the past.

<Third Embodiment>
FIG. 11 is a block diagram showing a main configuration example of a digital television 12 as an example of a broadcast receiving apparatus according to the third embodiment of the present invention. The same components as those in the first or second embodiment are denoted by the same reference numerals, and redundant description is omitted.

  As is clear from comparison between FIG. 1 and FIG. 11, the digital television 11 of this embodiment replaces the program search processing unit 45 with an EPG processing unit 80 instead of the search genre storage unit 46 and a reserved program information storage unit. 85.

  The EPG processing unit 80 generates an EPG screen according to the program information stored in the program information storage unit 26, specifically, information included in the EIT, and displays the EPG screen on the display unit 50 through the OSD processing circuit 35.

  The reserved program information storage unit 85 stores information (reserved program information) related to programs reserved for viewing and recording. As reserved program information, for example, broadcast date and time, broadcast start / end time, reservation type, channel number (ch), program name, etc. are stored.

  Further, in the digital television 12 of the present embodiment, it is possible to perform channel selection, viewing reservation, and recording reservation from the EPG screen, as in a known digital television. Since a mechanism that realizes such an operation using the EPG screen is not directly related to the present invention and is well known, a detailed description thereof will be omitted.

  An example of reserved program information stored in the reserved program information storage unit 85 is shown in FIG. In the example of FIG. 12, in addition to the date and time and the program name, a genre as an example of attribute information assigned to the reserved program is stored as the reserved program information.

  Next, in the digital television 12 of the present embodiment, a processing operation for a channel selection operation without program search will be described using the flowchart shown in FIG.

  In FIG. 13, steps that perform the same processing as in the second embodiment are given the same numbers, and descriptions thereof are omitted. In this embodiment, since the operation of step S340 for determining the genre used for adjustment is different, the operation of step S340 will be described.

Step S340: Determine genre to be used for adjustment based on reserved program information The control unit 65 notifies the genre determination unit 47 of the genre acquired in step S210. Here, as in the second embodiment, two types of genres, “variety” and “music”, are notified.

  In response to this, the genre determining unit 47 reads the reserved program information from the reserved program information storage unit 85 and totals the genres assigned to the reserved programs. Then, the genre determination unit 47 uses the genre having the largest number counted from the reserved program information among a plurality of genres assigned to the program being viewed, notified from the control unit 65, for automatic adjustment. To decide. The genre determination unit 47 notifies the determined genre to the image quality / sound quality setting unit 40. As described above, the genre determination unit 47 determines the type of attribute information used for display image quality and / or sound quality adjustment based on the genre count result as the statistical value of the attribute information of the broadcast program reserved for viewing or recording. To do.

  Assume that the genres acquired in step S210 are “variety” and “music” as in the second embodiment. In this case, since the number of reservations (number of appearances) of “variety” aggregated from the reserved program information is 2 and the number of reservations of “music” is 3, the genre determination unit 47 uses the genre “music” for automatic adjustment. Determined as a genre.

  In step S250, the image quality / sound quality setting unit 40 instructs the video processing circuit 30 and the audio processing circuit 31 to perform the image quality / sound quality setting associated with the genre “music”.

  According to the present embodiment, the image quality and sound quality are automatically adjusted in consideration of the genre of the program that the user reserves frequently, in other words, the setting that the user often views. Therefore, adjustment of image quality and sound quality that would be preferable for the user can be executed without the user being aware of it.

<Other embodiments>
In the above-described embodiment, when automatically adjusting the image quality and sound quality of a program to which a plurality of genres are assigned, the genre selected in consideration of the genre used for program search, the genre of reserved program, or their history and frequency An example of performing automatic adjustment based on the above has been described.

However, the genre used for automatic adjustment may be determined based on other conditions.
For example, in the case of viewing a “buzzy person” having two genres of “variety” and “music”, when the user selects a channel from 19:00 to 21:00, “variety” In the case of 30-23: 30, it may be adjusted to a setting suitable for “music”.

  In this case, it is possible to automatically adjust to a setting suitable for many viewing styles of the user, such as watching a variety program around 20:00, called a golden time, and watching a music program around 23:00.

  As described above, the genre may be determined in advance for each time zone, and automatic adjustment may be performed using the genre corresponding to the selected time. It is also possible to combine with determination of a genre considering the history and frequency described above. For example, in the second embodiment, a combination such as adding +1 to the number of histories corresponding to the genre corresponding to the selected time zone is conceivable. In addition, the method described in the above embodiment may be used in a time zone that does not have a genre corresponding to the channel selection time zone, and if there is a genre corresponding to the time zone, priority may be given to the genre. .

  In the above-described embodiment, for example, processing that can be executed other than the timing of actually viewing the program, such as acquisition of broadcast program attribute information, may be performed at a timing other than during viewing. Specifically, it can be performed before the broadcast start time, for example. Therefore, it should be noted that the timing of processing described as being performed during viewing in the embodiment is not necessarily limited to during viewing.

  The above-described embodiment can also be realized in software by a computer of a system or apparatus (or CPU, MPU, etc.).

  Therefore, the computer program itself supplied to the computer in order to implement the above-described embodiment by the computer also realizes the present invention. That is, the computer program itself for realizing the functions of the above-described embodiments is also one aspect of the present invention.

  The computer program for realizing the above-described embodiment may be in any form as long as it can be read by a computer. For example, it can be composed of object code, a program executed by an interpreter, script data supplied to the OS, but is not limited thereto.

  A computer program for realizing the above-described embodiment is supplied to a computer via a storage medium or wired / wireless communication. Examples of the storage medium for supplying the program include a magnetic storage medium such as a flexible disk, a hard disk, and a magnetic tape, an optical / magneto-optical storage medium such as an MO, CD, and DVD, and a nonvolatile semiconductor memory.

  As a computer program supply method using wired / wireless communication, there is a method of using a server on a computer network. In this case, a data file (program file) that can be a computer program forming the present invention is stored in the server. The program file may be an executable format or a source code.

  The program file is supplied by downloading to a client computer that has accessed the server. In this case, the program file can be divided into a plurality of segment files, and the segment files can be distributed and arranged on different servers.

  That is, a server apparatus that provides a client computer with a program file for realizing the above-described embodiment is also one aspect of the present invention.

  In addition, a storage medium in which the computer program for realizing the above-described embodiment is encrypted and distributed is distributed, and key information for decrypting is supplied to a user who satisfies a predetermined condition, and the user's computer Installation may be allowed. The key information can be supplied by being downloaded from a homepage via the Internet, for example.

  Further, the computer program for realizing the above-described embodiment may use an OS function already running on the computer.

  Further, a part of the computer program for realizing the above-described embodiment may be configured by firmware such as an expansion board attached to the computer, or may be executed by a CPU provided in the expansion board. Good.

It is a block diagram which shows the main structural examples of the digital television as an example of the broadcast receiver which concerns on the 1st Embodiment of this invention. 6 is a diagram illustrating an example of setting values stored in an image quality / sound quality setting value storage unit 41. FIG. It is a flowchart for demonstrating the program search processing operation of the digital television which concerns on 1st Embodiment. It is a figure which shows the example of the program in broadcast. It is a figure which shows the example of a display of the genre selection screen in the digital television concerning 1st Embodiment. It is a figure which shows the example of a display of the search result screen in the digital television which concerns on 1st Embodiment. It is a block diagram which shows the main structural examples of the digital television as an example of the broadcast receiver which concerns on the 2nd Embodiment of this invention. 7 is a diagram illustrating an example of setting values stored in a search history storage unit 70. FIG. It is a flowchart for demonstrating the program search processing operation of the digital television which concerns on 2nd Embodiment. It is a flowchart for demonstrating the processing operation | movement with respect to the channel selection operation which does not pass program search in the digital television which concerns on 2nd Embodiment. It is a block diagram which shows the main structural examples of the digital television as an example of the broadcast receiver which concerns on the 3rd Embodiment of this invention. It is a figure which shows the example of the reserved program information memorize | stored in the reserved program memory | storage part. It is a flowchart for demonstrating the processing operation | movement with respect to the channel selection operation which does not go through program search in the digital television concerning 3rd Embodiment.

Claims (6)

A broadcast receiving device that automatically adjusts display image quality and / or sound quality of a program based on broadcast program attribute information,
For each of a plurality of the attribute information, and setting storage means for storing in association with adjustment Description of display quality and / or quality,
And information acquisition means for acquiring the attribute information of the broadcast program to be viewed,
A setting acquiring unit that acquires the adjustment contents corresponding to the attribute information acquired by the information acquiring means from the setting storage unit,
Adjusting means for adjusting and outputting the display image quality and / or sound quality of the broadcast program to be viewed according to the adjustment content acquired by the setting acquisition means,
If attribute information of a plurality of types obtained by the information obtaining unit, the setting acquiring unit attribute information used to search for a broadcast program to the viewing, from the attribute information of the broadcast program viewed in the past the generated statistics attribute information, statistics attribute information generated from the attribute information of the broadcast program viewing or recording is reserved, based on any one of the plurality of types of attribute information 1 The broadcast receiving apparatus is characterized in that the adjustment content corresponding to the selected attribute information is acquired . Broadcast program the viewing, if those selected from the results of the program search using the attribute information, the setting acquiring unit, the attribute information used in the program search from said plurality of types of attribute information The broadcast receiving apparatus according to claim 1, wherein the broadcast receiving apparatus is selected. If the broadcast program to be viewed is not one that is selected from the results of the program search using the attribute information, the setting acquiring unit, the attribute information generated from the attribute information of the broadcast program viewed in the past statistics or based on any of the statistical values of the attribute information generated from the attribute information of the broadcast program viewing or recording is reserved, selecting one of the plurality of types of attribute information The broadcast receiving apparatus according to claim 1. The statistical value of the attribute information generated from the attribute information of the broadcast program viewed in the past, the a Type frequency of attribute information previously viewed broadcast program,
Before Symbol setting acquisition unit, among the plurality of kinds of attribute information of the broadcast program to the viewing, broadcast receiving apparatus according to claim 1, characterized in that the frequency to select the highest one of the attribute information . The statistical value of the visual聴又attribute information generated from the attribute information of a broadcast program recording is reserved, a Type frequency of attribute information of the broadcast program the viewing or recording is reserved,
Before Symbol setting acquisition unit, among the plurality of kinds of attribute information of the broadcast program to the viewing, broadcast receiving apparatus according to claim 1, characterized in that the frequency to select the highest one of the attribute information . A control method for a broadcast receiving apparatus that automatically adjusts display image quality and / or sound quality of a program based on attribute information of the broadcast program,
And information acquisition step of acquiring the attribute information of the broadcast program to be viewed,
The adjustments corresponding to the attribute information acquired by the information acquisition step, for each of a plurality of the attribute information, from the setting storage unit that stores in association with adjustment Description of display quality and / or sound quality A setting acquisition process to acquire;
An adjustment step of adjusting and outputting the display image quality and / or sound quality of the broadcast program to be viewed according to the adjustment content acquired by the setting acquisition step,
Said information when a plurality of types of attribute information by acquiring step is acquired, the setting acquisition step, attribute information used to search for a broadcast program to the viewing, from the attribute information of the broadcast program viewed in the past the generated statistics attribute information, statistics attribute information generated from the attribute information of the broadcast program viewing or recording is reserved, based on any one of the plurality of types of attribute information 1 And adjusting the content corresponding to the selected attribute information .

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