JP2005094072A - Television receiving apparatus and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a television receiving apparatus and method capable of learning to create a viewing environment suitable for a user's preference.
A memory and an adjustment parameter for adjusting one of image quality and sound quality are stored in association with each other in a memory. The keyword can be created by the user through a user interface such as the OSD control unit 16 based on the control of the TV microcomputer 18. The VBI processing unit 15 acquires information about received content such as an electronic program guide. The TV microcomputer 18 collates the information acquired by the VBI processing unit 15 with the keyword stored in the memory 19, and when it matches, the display unit 14 uses the adjustment parameter stored in association with the keyword in the memory 19. The image quality of the content output to the sound output unit and the sound quality of the content output to the audio output unit 22 are adjusted.
[Selection] Figure 3

Description

  The present invention relates to a television receiving apparatus and method, and more particularly, to a television receiving apparatus and method capable of adjusting the output image quality.

  In recent years, various information can be obtained in a television receiver due to the trend of digitization and multi-channeling of contents and information. For example, in BS digital broadcasting, in addition to television video signals and audio signals, text broadcasting, data broadcasting, EPG (Electronic Programming Guide) and the like are provided as multimedia services. Even in the current analog television broadcasting, in addition to the television video signal and the audio signal, information multiplexed in the VBI (Vertical Blanking Interval) is used for text broadcasting and simulcast (simultaneous broadcast). EPG etc. are sent.

  By the way, most television receivers have an adjustment function of image quality and sound quality. By using this adjustment function, the user can adjust the image quality to a desired state according to the program to be viewed. In order to facilitate these adjustments, there is a television receiver having a preset function in which a predetermined image quality such as a movie mode and a live mode is preset.

  However, particularly in the above-mentioned television receiver that supports multi-channel and digitization, there are a lot of receivable contents and information, and it is troublesome for the user to adjust the image quality suitable for the contents and view it. Often not. Therefore, it has been proposed to determine a television program or content that matches the user's preference based on additional information such as EPG.

  In Patent Document 1 below, sound effects, program configuration data, and the like are set as EPG objects, and are multiplexed with video and audio signals and broadcasted to provide more effective program information to users. An information providing apparatus and method, an information receiving apparatus and method, and a transmission medium are disclosed.

JP-A-11-69316

  Further, in Patent Document 2 below, audio and video for a television program that automatically adjusts the characteristics of the television receiver such as the video setting value and the audio setting value based on the characteristics of the program being viewed. An automatic setting value control system and method are disclosed.

JP-T-2001-515675

  Further, in Patent Document 3 below, the optimum image quality desired by the viewer according to the type of program viewed by the viewer is extracted by extracting the type of program from the program information from which the type of program such as EPG data is obtained. An image quality control apparatus that performs adjustment is disclosed.

JP 2002-158941 A

  Further, in Patent Document 4 below, a control parameter corresponding to a genre of a program selected based on a user command is read from a memory, and signal processing in the video signal processing device and the video output unit is performed based on the control parameter. An image processing apparatus, an image processing method, and a recording medium to be controlled are disclosed.

JP 2001-326875 A

  As described above, the user can comfortably view the television broadcast by using the additional information of the content such as EPG for adjusting the image quality and the like.

  However, although the information providing apparatus and method, the information receiving apparatus and method, and the transmission medium disclosed in Patent Document 1 described above are aimed at the acoustic effect in the AV system, the user has his or her own image quality and sound quality. It does not change to the desired state. The automatic control system and method of audio and video setting values for a television program disclosed in Patent Document 2 determines characteristics such as topic and theme information for a currently broadcasted television program, and is defined in advance. Audio processor that is defined in the list and conforms to the topic and theme of the program, audio settings such as bass level and treble level, and video settings such as contrast, color, and brightness are automatically changed. is there. The image quality control device disclosed in Patent Document 3 detects the type of a program, and at least one of luminance, contrast, color density, sharpness, hue, black level, and video signal processing corresponding to the type. These are adjusted to the optimum image quality desired by the user. The image processing apparatus, the image processing method, and the recording medium disclosed in Patent Document 4 only control the signal processing and the display state based on the control parameters stored in the memory based on the EPG.

  In other words, with the conventional adjustment of the picture and sound quality described above, it is possible to roughly adjust the type of content such as movies and sports registered in advance, but the picture and picture quality of the content is automatically reflected to reflect the detailed user preferences. It is difficult to automatically create a viewing environment (image quality / sound quality / sound field) that suits the user's preference. Further, the conventional adjustment of the image quality described above does not have a learning function capable of gradually bringing the image quality close to the user's preference.

  Accordingly, an object of the present invention is to provide a television receiving apparatus and method capable of learning to create a viewing environment that suits the user's preference.

  In order to achieve the above object, according to a first aspect of the present invention, there is provided a television receiver to which content and information related to the content are supplied, and keyword creating means for creating a keyword; A keyword is extracted from information related to content, a storage unit that associates and stores an adjustment parameter for adjusting the image, a registration unit that associates the keyword created by the creation unit with the adjustment parameter, and registers the parameter in the storage unit. In this case, the television receiving apparatus includes an adjusting unit that adjusts at least one of the image quality and the sound quality of the output content according to the adjustment parameter corresponding to the extracted keyword.

  In the present invention, when a keyword and an adjustment parameter for adjusting at least one of image quality and sound quality are stored in association with each other and the keyword is extracted from information regarding the content, the adjustment parameter corresponding to the extracted keyword is stored. It is possible to automatically adjust at least one of image quality and sound quality by adjusting at least one of image quality and sound quality of the output content according to the parameter. Further, by creating a keyword and registering the created keyword adjustment parameter in the storage means in association with each other, it is possible to make adjustments under detailed conditions. Further, the keyword setting can be learned by repeating the keyword setting.

  According to the present invention, when a keyword is extracted from information on content, at least one of the image quality and the sound quality is adjusted to the setting of the adjustment parameter. It produces the effect that it can be created. In addition, since it is possible to learn keyword setting so that at least one of image quality and sound quality is desired by the user, the user can select at least one of image quality and sound quality by repeating the keyword setting. There is an effect that can be close to.

  First, before describing an embodiment of the present invention, an image quality and sound quality adjustment function in a television receiver will be described. The content in this specification is not limited to a television program (program) supplied from a broadcasting station, but is information obtained via a network such as the Internet, a CD (Compact Disc) or a DVD (Digital Versatile Disc). Information obtained from a recording medium such as

  FIG. 1 shows an example of the relationship between the preset image quality mode and sound quality mode and the parameters that determine the image quality and sound quality that can be equalized.

  With reference to FIG. 1, a preset function and an equalizing function, which are image quality and sound quality adjustment functions, will be described. The preset function is to switch to an image quality corresponding to the selected image quality mode by selecting an image quality mode preset to a predetermined image quality. The equalizing function is for manually adjusting the image sound quality while the user is viewing.

  The preset function includes a preset image quality mode and a preset sound quality mode. The preset value of the image quality is set, for example, by combining a video parameter in the preset image quality mode and an audio parameter in the preset sound quality mode. Since there are combinations that have no meaning, it is not always necessary to set all the combinations, and a predetermined combination corresponding to the content content is set in advance as a preset value. The preset value is normally set in advance at the time of manufacture except for a mode that can be set as desired by the user.

  Preset image quality modes are composed of modes such as “Theater”, “Living”, “Standard”, “Dynamic”, “Text information (high quality mode that makes document text look beautiful)”, “User”, etc. , Brightness, contrast, color, HUE, sharpness, gamma gain, demodulation axis RY adjustment, RG switching, black extension gain, black extension level, RGR offset adjustment, BR gain adjustment, color temperature adjustment Video parameters such as are set. When preset at the time of manufacture, video parameters that are generally not open to the user can be included.

  Preset sound quality modes are “TV Theater”, “Hall”, “Live Concert”, “Church”, “Jazz Club”, “Rock Concert”, “Arena”, “Entertainment”, “Movie”, “Concert Video”, It consists of modes such as “user”, and various audio parameters such as fade-in, fade-out, panning, level adjustment during playback, tone control, volume, balance, and mute are set for each mode. When it is set in advance at the time of manufacture, audio parameters that are generally not open to the user can be included.

  The video equalizing function is for the user to directly adjust the video parameters released to the user, and the audio equalizing function is for the user to directly adjust the audio parameters open to the user.

  After the user roughly switches the image quality to the desired state using the preset function, the user can adjust the image sound quality to the desired state in detail using the equalizing function. Of course, it is also possible to change the image quality using only one of the preset function and the equalizing function.

  Further, a television receiver having a high image quality control function such as a DRC (Digital Reality Creation) function can control the image quality clearly and clearly. FIG. 2 is an image of signal waveform replacement using the DRC function.

  In the DRC, the NTSC (National Television System Committee) signal having a gentle waveform compared with the HD (High Definition) signal as shown on the left side of FIG. A high-definition signal close to the HD signal waveform as shown on the right side can be recreated. The DRC function is a function for finely controlling the image quality of a DRC high-quality video on a biaxial map called a DRC-MF palette. The vertical axis increases the resolution and stereoscopic effect of the video details, and can be adjusted to create a realistic image. The horizontal axis reduces the noise while maintaining the texture of the image, creating a low-rough image. (Neat) adjustment can be performed. The DRC function enables fine image quality control adapted to software, for example, when it is desired to perform video expression with an atmosphere approaching the film feeling of a movie. If this function is used, it is possible to finely control the video while maintaining the original image quality.

  Hereinafter, a television receiver according to an embodiment of the present invention will be described. The television receiver according to the embodiment of the present invention uses the image / sound quality adjustment function as described above, and adjusts the image / sound quality adapted to the content by using the keyword and the information related to the content. .

  The keyword includes a content genre and a related keyword. The related keyword is selected from the selection items. When the desired item does not exist in the selection item, the user can set the original keyword. Details of the keyword setting will be described later.

  The information regarding content is information regarding content such as an electronic program guide. For example, in current analog broadcasting, data of an electronic program guide that is multiplexed and sent to VBI as additional information of content can be used.

  In the NTSC system, VBI is defined as 21 in the first half of 525 scanning lines. VBI is a blank portion of the TV radio wave from the end of drawing a screen to the start of drawing the next screen, and is not used for image display. Some of the scanning lines 1 to 21 are used as information for timing to draw the screen, but the rest are unused. Each unused scanning line can transmit 288 bits of data in the United States and 296 bits in Japan. Broadcasting is performed by putting caption data and electronic program guide data as digital data in this area.

  The electronic program guide data is data for creating an electronic program guide. From the electronic program guide data, in addition to the content name, information such as the genre of the content such as sports and dramas, the name of the performer, and the description of the content can be acquired together with the information such as the content broadcast channel, start time, end time it can.

  In one embodiment of the present invention, a case of receiving an analog television broadcast will be described as an example. In the case of the current terrestrial broadcasting, as an electronic program guide, for example, an interactive program guide (abbreviated as IPG), which can be received from TBS (Tokyo Broadcasting Corporation) affiliated terrestrial broadcasting, etc. in Japan. An electronic program guide of G-GUIDE system developed by Gemstar Inc., commonly known as “G Guide”, developed on the nationwide network can be applied.

  FIG. 3 shows an example of the configuration of the television receiver 1 according to the embodiment of the present invention. The analog terrestrial tuner 2 is a tuner for receiving a television broadcast by the supplied analog terrestrial signal, and the analog BS broadcast tuner 3 is a tuner for receiving an analog BS (Broadcasting Satellite) broadcast. In one embodiment, content and information about the content are supplied by these broadcast waves. The input switching unit 4 switches between an input from the analog terrestrial tuner 2 and an input from the analog BS broadcast tuner 3, and separates the input television signal into an analog video signal and an analog audio signal and outputs them.

  The analog video signal output from the input switching unit 4 is digitally converted by an A / D converter (ADC) 5 and separated into a synchronous system, a YC signal processing system, and a VBI data decoder system. The horizontal and vertical synchronization signals separated as the synchronization system are supplied to the synchronization processing unit 6, and the digital video signal separated as the YC signal processing system is supplied to the comb filter color decoder 10 and separated as the VBI decoder system. The received signal is supplied to the VBI processing unit 15.

  The synchronization processing unit 6 performs a process of matching the scanning on the television receiver 1 side with the scanning timing on the transmission side by the horizontal and vertical synchronization signals supplied from the ADC 5. Based on the output of the synchronization processing unit 6, the deflection processing unit 7 performs horizontal and vertical deflection processing for scanning. The horizontal and vertical signals output from the deflection processing unit 7 are supplied to a display unit 14 such as a CRT (Cathode Ray Tube) via a horizontal output unit 8 and a vertical output unit 9, respectively. Thereby, appropriate scanning on the display unit 14 is performed.

  The comb filter color decoder 10 separates the luminance signal and the color signal from the digital video signal supplied from the ADC 5 and is decoded by the color decoder. The separated luminance signal and color signal are supplied to the RGB processing unit 11. The RGB processing unit 11 performs processes such as increasing the resolution in the frame and the time axis direction on the luminance signal and the color signal input from the comb filter color decoder 10. The RGB processing unit 11 outputs a luminance signal and a color signal based on the video parameter.

  The signal output from the RGB processing unit 11 is supplied to a D / A converter (DAC) 12. The D / A converter 12 converts the digital video signal input from the RGB processing unit 11 from analog to analog video signal. The converted analog video signal is supplied to the RGB output unit 13 and processed into a signal for displaying a color image on the display unit 14, for example, three primary color signals of R (red), G (green), and B (blue). After that, it is supplied to the display unit 14. Thereby, the video of the received content is displayed on the display unit 14.

  The VBI processing unit 15, OSD control unit 16, TV microcomputer 18, and memory 19 perform processing related to the image quality equalizer. The image / quality equalizer processing unit including the VBI processing unit 15, the OSD control unit 16, the TV microcomputer 18 and the memory 19 will be described later.

  On the other hand, the analog audio signal output from the input switching unit 4 is supplied to the audio processor 20 and subjected to signal processing so as to optimally output audio from the audio output unit 22 such as a speaker. The audio processor 20 outputs an audio signal based on the audio parameter. The audio signal output from the audio processor 20 is supplied to the audio output unit 22 via the audio output unit 21, and the audio of the received content is output.

  The remote control light receiving unit 17 receives and demodulates a control signal by infrared rays or the like emitted from a remote controller (not shown), and outputs it to the TV microcomputer 18.

  FIG. 4 is a block diagram for explaining the image and sound quality equalizing function in the image and sound quality equalizer processing unit described above. The digital video signal output from the A / D converter 5, that is, the video input signal is supplied to the display unit 14 through the video signal processing unit 23 as a normal process. That is, as described above, after passing through the RGB filter 11 through the comb filter color decoder 10 composed of a comb filter, a color decoder, etc., based on the video parameters set in the television receiver 1 at that time. Content with image quality is output to the display unit 14 such as a CRT drive.

  On the other hand, the VBI processing unit 15 acquires a data string superimposed on the VBI from the video input signal output from the A / D converter 5 by using a VBI data slicer or the like as a VBI decoder system signal, and acquires the acquired data. By decoding the column by a VBI decoder or the like, VBI data including information attached to the electronic program guide is acquired.

  The VBI processing unit 15 records the obtained VBI data by storing it in an EPG database including items such as content name, content genre, performer, broadcast start / end time, and program details. The recorded VBI data is supplied to the TV microcomputer 18 as information that can be a keyword.

  The memory 19 records related keywords such as a genre related to the content to be viewed and the name of a favorite talent in advance in association with a predetermined image quality as a keyword for changing the image quality in a keyword database or the like. That is, the memory 19 stores a keyword and an adjustment parameter for adjusting at least one of image quality and sound in association with each other. The adjustment parameter is configured based on the video parameter and the audio parameter as described above.

  The TV microcomputer 18 is composed of a microcomputer or the like and has the image / sound quality adjustment function as described above, and adjusts the image / sound quality output from the television receiver 1 by the user's operation for adjusting the image / sound quality. Do. In addition, the TV microcomputer 18 collates the VBI data from the VBI processing unit 15 with the keyword recorded in the memory 19, and if the VBI data matches the keyword recorded in the memory 19, the keyword The image quality is adjusted so that the associated image quality is obtained, and the output is controlled. That is, when a keyword is extracted from information related to the content, the TV microcomputer 18 adjusts at least one of the image quality and the sound quality of the output content according to the adjustment parameter corresponding to the extracted keyword. 23 and the audio processor 20 are controlled.

  When adjusting to the image quality associated with the keyword, the TV microcomputer 18 receives video signal feature data such as the maximum value, the minimum value, the total luminance, and the number of pixels of the video signal from the video signal processing unit 23, and receives the received video. Based on the signal feature data, an equalizing correction coefficient is calculated so as to obtain an image quality associated with the keyword, and the calculated correction coefficient is sent to the video signal processing unit 23. As a result, the video signal processing unit 23 outputs a signal corrected to the image quality associated with the keyword. Therefore, if the additional information of the electronic program guide obtained from the VBI decoder or the like matches the keyword stored in the database of the memory 19 in advance, the parameters of the YC signal processing system are set from the TV microcomputer 18. Thus, the image quality can be changed according to the content.

Based on the analog audio signal output from the input switching unit 4, the audio processor 20 generates signals for outputting audio from the audio output unit 22, for example, audio L and R. The audio processor 20 is connected to the TV microcomputer 18 via an I ² C bus or the like, and the TV microcomputer 18 controls setting of basic functions such as AGC (Auto Gain Control), tone control, and volume control. In addition to controlling these basic functions, various settings related to audio output such as audio output modes such as hall, live, jazz, rock, and theater are controlled by a DSP (Digital Signal Processor).

  Therefore, a keyword related to audio is also searched from the VBI data (in this embodiment, the same keyword as video), and is matched with the keyword recorded in the memory 19 in advance for setting the sound field of the television receiver 1. When the sound quality associated with the keyword is adjusted, the TV microcomputer 18 sends various audio correction parameters such as a DSP of the audio processor 20 to the audio processor 20 by associating the audio correction parameters with the keyword. The sound quality can be controlled according to the content of the keyword.

  The OSD control unit 16 generates graphics data for displaying an electronic program guide, keyword registration, change, and creation screen as an OSD (On Screen Display) by a presentation engine or the like. The generation of graphics data is performed under the control of the TV microcomputer 18. The OSD control unit 16 is supplied with data of an electronic program guide from the TV microcomputer 18 as necessary. The generated graphics data is synthesized with the video signal output to the RGB output unit 13.

  Therefore, in the television receiver 1, based on the additional information of the electronic program guide such as “G guide” which is data multiplex broadcasting using the VBI of the television radio wave, the genre relating to the content to be viewed, the name of the favorite talent, etc. If the information is registered in advance, additional information such as the program name and program contents in the electronic program guide is automatically checked against the keyword, and if it matches, the image quality changes to the preset image quality associated with the keyword in advance. The parameters to be corrected are fed back to the video signal and audio signal processing system as correction coefficients. The corrected video signal is output from the video signal processing unit 23 and displayed on the display unit 14. The corrected audio signal is output from the audio processor 20 and the audio is output from the audio output unit 22.

  Here, the keywords will be described in detail. The keyword setting is not particularly limited, but (1) a keyword candidate is selected and set from preset keyword candidates, and (2) a keyword candidate is selected from program information of a program being viewed obtained from data of an electronic program guide. Calling, selecting from several types and setting, (3) Displaying a keyboard by software on the display unit 14, creating by manual input, setting, and the like.

  In addition, by providing the TV microcomputer 18 with a so-called learning function in which the user teaches the optimal keyword to the television receiver 1, the automatic adjustment of the image quality and sound quality according to the content of the contents to be viewed gradually matches the user's preference. You can learn keywords.

  FIG. 5 to FIG. 8 show an example of a genre and related keyword selection process adapted to content by the television receiver 1. Hereinafter, with reference to FIGS. 5 to 8, a description will be given of how to set and create specific keywords based on graphics data generated by the OSD 16 and how to learn optimal keywords. Note that the image quality is stored in the memory 19 by storing parameters for adjusting the image quality.

  The GUI 30 is a GUI (Graphical User Interface) that can be controlled via the TV microcomputer 18 and the OSD control unit 16 by operating the operation buttons attached to the main body of the television receiver 1 or the operation of a remote controller. The GUI 30 includes a selection item column 31 and a setting item column 32. The selection item column 31 displays keyword candidates. The setting item column 32 displays a keyword selected for setting by the user.

  When setting a keyword, first, as shown in FIG. 5, items of the content genre such as “classical music”, “sports”, and “foreign film” are displayed in each item of the selection item column 31. The user selects an item to be registered as a keyword from the selection items in the selection item column 31. Here, “Western image” is selected, and the selected item “Western image” is displayed in the setting item column 32.

  The selection items in the selection item column 31 have a hierarchical structure. After selecting “foreign film” as the content genre, the selection item column 31 includes “action”, “animation”, Items of related keywords that further specify the genre of the content such as “variety” are displayed. The user selects an item to be further added as a keyword from the related keywords in the selection item column 31. Here, “action” is selected, and “action” is displayed in the setting item column 32 in addition to “foreign”. Thus, the keywords are “foreign film” and “action”.

  A preset value of image quality corresponding to each combination is set in advance for the combination of the genre and the specific item of the genre. At this time, the setting of the image quality of the content being viewed is set to a preset value corresponding to the combination of the selected genre and the specific item of the genre. For example, when “foreign film” or “action” is selected, the video parameter is set to the preset value of the “theater” mode and the audio parameter is set to the “TV theater” mode.

  Thus, by setting the content genre and the related keyword and using the above-described VBI data, the content determined to be applicable to the genre and the related keyword is the image of the preset value corresponding to the genre and the related keyword. It becomes possible to output with sound quality. However, the image quality based on preset values set in advance is average, and it is not always possible to create a viewing environment that is satisfactory to the user. Therefore, the television receiver 1 can add an item for specifying the content in more detail to the keyword, and store the keyword and the image quality satisfied by the user in the memory 19 in association with each other. .

  After selecting “foreign film” and “action”, items for further specifying content such as “007”, “car chase”, and “SF” are displayed in the selection item column 31 as shown in FIG. . This item is an item that can be a keyword obtained from, for example, electronic program guide data. If the user is not satisfied with the preset picture / sound quality according to the set content genre and related keywords, the user displays a menu and uses a picture / sound quality adjustment function such as an equalizer function to adjust the picture / sound quality to his / her preference. After the adjustment is completed, the user selects an item to be further added as a keyword from the selection items in the selection item column 31. In the example illustrated in FIG. 7, “007” is selected, and “foreign”, “action”, and “007” are displayed in the setting item column 32. The image quality adjusted here is associated with the keywords “foreign”, “action”, and “007”, and is registered in the memory 19 in the memory 19.

  At this time, the video parameter and the audio parameter adjusted by the user are recorded in the “user” mode, for example.

  Furthermore, when the content is specified and the image quality is adjusted to the user's preference, the image quality is readjusted. If there is no item for further specifying the content in the selection item column 31, the user creates an original keyword using an input means such as a keyboard by software. For example, in the example shown in FIG. 8, “die another day” is set. FIG. 9 is an example of the software keyboard 40.

  When the keyword setting is completed, the keyword is registered using a registration button or the like. Thus, the keyword to which the created original keyword is added and the readjusted image quality are associated with each other and registered in the memory 19. In the example shown in FIG. 5 to FIG. 8 for adjusting the image quality, “foreign”, “action”, “007”, and “die another day” are registered as keywords.

  Here, with reference to FIG. 10 and FIG. 11, the process of learning the setting of the image quality will be described. FIG. 10 shows an example process in which the keyword setting is changed, and FIG. 11 shows the details of the parameters changed by the change. Of the equalize items shown in FIG. 11, shaded items indicate items that are not open to the user.

  First, as a first stage of learning, when viewing Western-style content, keywords are set with a genre of “Western-style” and a related keyword of “Action”. As a result, the image quality mode “theater” and the sound quality mode “TV theater” set as preset values for the keywords “foreign film” and “action” are set. Thereafter, when viewing content that conforms to “foreign film” and “action”, the image quality mode is automatically set to “theater” and the sound quality mode can be set to “TV theater”.

  Next, as a second stage, when watching a movie of the “007” series, the image quality mode “Theater” and the sound quality mode “TV theater” are not satisfied, and the contrast, color, Adjust the sharpness setting value, adjust the low frequency level setting value from the state of the sound quality mode “TV theater”, associate the adjusted state with the related keyword “007” and set the sound quality mode “user” Yes. Thereafter, when viewing content that conforms to “foreign”, “action”, and “007”, the image quality mode is automatically set to “user” set in the second stage.

  Next, as a third stage, when watching “Die Another Day” of a movie of “007” series, the image quality mode “user” set in the second stage is not satisfied and the image quality is not satisfied. Adjust the brightness and DRC settings from the mode “User”, adjust the high and low level settings from the sound quality mode “User”, and associate the status with the related keyword “Die Another Day” The image quality mode is set to “User”. Thereafter, when viewing content that conforms to “foreign film”, “action”, “007”, “die another day”, the image quality mode is automatically set to “user” set in the third stage. Is set.

  In this way, in a television receiver having an image quality control function such as DRC, it is possible to set not only the parameter value by the equalizing function but also the parameter value for recreating the image quality, so that the keyword can be given more. It is possible to automatically set the viewing environment that matches the image.

  Next, as the fourth stage, when viewing “Die Another Day” of the “007” series movie again, the image quality mode “user” set in the third stage is not satisfied, The DRC set value is adjusted from the state of the image quality mode “user”, and the state is associated with the related keyword “die another day” and set to the image quality mode “user”. Thereafter, when viewing content that conforms to “foreign film”, “action”, “007”, and “die another day”, the image quality mode is automatically set to “user” set in the fourth stage. Is set.

  It can be seen that the keyword combinations gradually converge to a specific image quality by changing the keywords so that the image quality matches the user's preference. In addition, by storing the process of changing the parameters as shown in FIG. 11 in the memory 19, it is possible to adjust to an appropriate image quality according to various situations.

  Since information regarding contents such as electronic program guides is not known from the user side, the combination of image quality and sound quality and setting values may vary according to the user's preference, depending on how the keywords are selected. The television receiver 1 according to an embodiment has a function of causing the TV microcomputer 18 to learn appropriate keywords so that the image quality matches the user's preference. Become. In other words, by repeating the keyword setting and storing the process, it matches the daily usage situation such as the setting conditions of the program that the user has watched in the past and the keyword (including keyword input by software) at that time. Learn the user's preferred viewing environment (brightness, contrast, color saturation, sharpness, hue, black level and sound field settings, bass and treble level settings, etc.) and apply them to the program or content to be viewed To go.

  Furthermore, in the preset viewing environment (theatre, living room, etc.), the setting of the image quality parameter that is not open to the user may be delicately changed in advance. In addition, when the VBI data stored in the EPG database or the like is incomplete, it may be possible that the image quality and sound quality intended by the user may not be set. However, since the television receiver 1 has a learning function, the user can It is possible to learn the intended meaning of the keyword to be set and bring it closer to the setting of the image quality desired by the user. In addition, it is possible to narrow down complex programs by combining keywords.

  FIG. 12 shows an example of the flow of processing by the TV microcomputer 18 of the television receiver 1. First, the TV microcomputer 18 detects VBI data by the VBI data slicing function of the VBI processing unit 15, and decodes the detected VBI data by the VBI decoder function (step S1). Signal processing is performed in each layer of OSI (Open Systems Interconnection) from the data sequence obtained by decoding, information that can be a target keyword is detected from the VBI processing unit 15 (step S2), and the detected information is stored in an EPG database or the like. To the recording means.

  Next, the TV microcomputer 18 determines whether or not it is an automatic image quality setting mode (step S3). If it is determined in step S3 that the mode is not the automatic image / sound quality setting mode, for example, a normal image / sound quality setting value is set (step S9), and the process ends without adjusting the image / sound quality. If it is determined in step S3 that the automatic image / sound quality setting mode is set, if there is a preset value and the user's image / sound quality setting, the above-described keyword and the keyword in the memory 19 are checked and matched. In this case, the image quality associated with the keyword in the memory 19 is set. At this time, the original keyword input by the user using a keyboard or the like associated with this type of content is also checked.

  Here, it is determined whether or not the content is a genre of “foreign film”, “news”, “sports”,... In the order of step 4, step S5, step S6,. That is, it is determined in step S4 whether or not the genre of the content is “foreign film”. If it is determined in step S4 that the genre of the content is not “foreign”, it is determined whether or not the genre of the content is “news” (step S5). If it is determined in step S5 that the content genre is not “news”, it is determined whether or not the content genre is “sports” (step S6).

  If it is determined in step S4 that the genre of the content is “Western”, the preset value of the image and sound quality associated with the genre “Western” recorded in the keyword database or the like, for example, the video parameter is “Theater”. And the audio parameter is set to “TV theater” (step S10). Next, information that can be a keyword as described above is collated with a related keyword recorded in the memory 19 (step S11). Then, it is determined whether there is a match (step S12).

  If it is determined in step S12 that there is no match, the process ends. If it is determined in step S12 that there is a match, the image quality associated with the matched related keyword is set (step S13), and the process ends. As described above, when the result of automatically setting both video and audio does not match the expected image quality and sound quality, the user may manually correct the image quality by displaying a menu or the like. When the correction is made, the TV microcomputer 18 learns that, and when the same content and keyword are selected next time, the viewing environment more suitable for the user's preference is set.

  Although detailed description is omitted here, the image quality is similarly set for other genres. For example, if it is determined in step S5 that the genre is “news”, the video parameter is set to “standard” and the audio parameter is set to “flat” (step S14). For example, if it is determined in step S6 that the genre is “sports”, the video parameter is set to “dynamic” and the audio parameter is set to “flat” (step S15).

  When the user further sets the picture / sound quality to be in a favorite state during viewing, the setting mode change routine (the process after the dotted arrow in FIG. 12) is entered, and related keywords are preliminarily assigned to electronic program guide data, etc. The original keyword can be input by using the soft keyboard or the like. At this time, the learning effect can be increased with respect to the keywords of each genre by associating the selected or input keyword with the image quality parameter and recording them in the database.

  That is, if it is determined in step S6 that the genre is not “sports” and the genre is not found, the user is inquired whether to change the setting mode (step S16). If it is determined in step S16 that the user does not change the setting mode, the process returns to step S1. If the user changes the setting mode in step S16, related keyword candidates are displayed (step S17). Then, the user is inquired whether to select from the selection candidates (step S18).

  If it is determined in step S18 that the user does not select from the selection candidates, the user is caused to input an original keyword using a software keyboard or the like (step S19). Then, the input original keyword is associated with the image quality parameter and recorded in the memory 19 (step S20), and the process ends. If the user selects from the selection candidates in step S18, the related keyword is selected from the selection candidates displayed in step S17 (step S21). Then, the selected related keyword is recorded in the memory 19 in association with the image quality parameter (step S22), and the process ends.

  As described above, in the television receiver 1 according to the embodiment of the present invention, content such as video and audio is received by the analog terrestrial tuner 2 and analog BS broadcast tuner 2 and content such as an electronic program guide is added. Information that can be a keyword extracted from the information is collated with a keyword that has been recorded in the memory 19 in advance, and when it matches, the received signal is subjected to adaptive processing by the video signal processing unit 24 or the audio processor 20. Since the image quality is automatically adjusted to the optimum image quality, a viewing environment suitable for the user's preference can be created. In addition, since it has a learning function for learning the user's preference by optimally changing the keywords recorded in the memory 19, it is not determined what information is included. Even when information such as a guide is used as additional information of content, the adjustment of image quality can be gradually brought closer to the user's preference.

  According to the content of the program or content viewed by the user, the information recorded in the image / sound quality database of the memory 19 associated with a keyword group that has already been set or a combination of the keywords is tailored to the user's preference. When the optimal image quality and sound quality parameters are set and corrections are made, it has a learning function to further optimize the combination of this keyword and parameters, so the viewing environment suitable for the content is easy. can get.

  When the user himself / herself sets a keyword, a finer viewing environment can be obtained. In particular, in the television receiver 1 having an image quality control function using a DRC palette screen and the like, the resolution and stereoscopic effect of the video details are enhanced to create a realistic image, and noise is suppressed while maintaining the texture of the image. It is possible to automatically set image creation with a small amount of time without having to set it manually. That is, each time the DRC image quality control is manually operated, the parameters, program name, content title, and the like are stored, and the image quality image of the title and keyword can be matched more.

  The present invention is not limited to the above-described embodiments of the present invention, and various modifications and applications are possible without departing from the spirit of the present invention. For example, in the above-described embodiment, the case of receiving the analog terrestrial television broadcast and the analog BS broadcast has been described. However, the present invention is not limited to this, and can be applied to other analog broadcasts and digital broadcasts. When applied to digital broadcasting, for example, EIT (Event Information in PSI (Program Association Table)), in particular, data of an electronic program guide that is multiplexed and transmitted on a Moving Picture Experts Group (MPEG) transport stream. Table) can be used.

  Further, by configuring the television receiver 1 to be connectable to a network such as the Internet, information on contents obtained via the network, for example, data such as iEPG (Internet Electronic Programming Guide) proposed by the applicant of the present application. Can be used.

  Further, in the above-described embodiment, the case where the content to be broadcast is received has been described. However, the present invention is not limited to this. Internet streaming via an input means such as an external terminal, a DVD (Digital Versatile Disc) player, or the like. If additional information related to content such as software titles and contents can be obtained from an external device, adaptive processing is applied to the input content from the external device in the same way as in broadcasting, so that the optimal image quality and sound quality are achieved. A learning function for automatic adjustment can be provided. In a DVD player, information is obtained from a plurality of titles and menus described in DVD-Video data defined in a volume file system of DVD-ROM (Read Only Memory) and other DVD data, and keywords and By collating, a content adaptation function similar to broadcasting can be realized.

  In recent years, there are many opportunities to view content by connecting a set-top box and a monitor. Therefore, in the above-described embodiment, the image quality is adjusted by using the television receiver 1 as a television receiver. However, other devices that can be connected to a monitor such as a set-top box and a personal computer are applied as the television receiver. May be. Further, the display performance of the monitor is basically unique to each. Therefore, liquid crystal projector mode, PDP (Plasma Display Panel) mode, LCD-TV (Liquid Crystal Display-Television) mode, CRT-TV (Cathode Ray Tube-Television) mode, CRT-PJ (Cathode Ray Tube-Projector) mode As described above, it may be applied to the creation of image quality and sound quality that match the characteristics of the monitor.

  In the embodiment described above, the image quality is adjusted using the same keyword, but the image quality and the sound quality may be adjusted using different keywords. It is also possible to adjust only one of image quality and sound quality. When adjusting only the sound quality, it can be applied to an audio output device such as a radio or a CD (Compact Disc) player.

It is a figure for demonstrating the image sound quality adjustment function of a television receiver. It is a figure for demonstrating an image quality control function. It is a basic diagram which shows the structure of an example of the television receiver by one Embodiment of this invention. It is a figure for demonstrating the equalizer function part of the television receiver by one Embodiment of this invention. It is a figure for demonstrating selection of the keyword in one Embodiment of this invention. It is a figure for demonstrating selection of the keyword in one Embodiment of this invention. It is a figure for demonstrating selection of the keyword in one Embodiment of this invention. It is a figure for demonstrating selection of the keyword in one Embodiment of this invention. It is a figure which shows the structure of an example of a software keyboard. It is a figure which shows an example of the setting process of image quality. It is a figure which shows an example of the parameter value in each image quality setting process. It is a figure which shows the flow of a process of TV microcomputer of the television receiver by one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Television receiver, 2 ... Analog terrestrial tuner, 3 ... Analog BS tuner, 10 ... Comb filter color decoder, 11 ... RGB processing part, 14 ... Display part 15 ... VBI processing unit, 16 ... OSD control unit, 18 ... TV microcomputer, 19 ... memory, 20 ... audio processor, 22 ... audio output unit, 23 ... video Signal processor

Claims (8)

In a television receiver to which content and information related to the content are supplied,
Keyword creation means for creating keywords,
Storage means for storing the keyword and an adjustment parameter for adjusting at least one of image quality and sound quality in association with each other;
Registration means for associating the keyword created by the creation means with the adjustment parameter and registering in the storage means;
And adjusting means for adjusting at least one of image quality and sound quality of the output content by the adjustment parameter corresponding to the extracted keyword when the keyword is extracted from the information related to the content. Television receiver. The television receiver according to claim 1.
Further, the adjustment parameter preset function for each content type is provided, the content type is extracted from the information related to the content, and the adjustment by the adjustment unit is possible with the preset setting corresponding to the extracted type. A television receiver characterized by that. The television receiver according to claim 1.
The television receiving apparatus according to claim 1, wherein the keyword has a hierarchical structure. The television receiver according to claim 1.
A television receiving apparatus, wherein information relating to the content is extracted from a signal inserted in a vertical blanking period of an analog television signal. The television receiver according to claim 1.
The information regarding the said content is an electronic program guide, The television receiver characterized by the above-mentioned. The television receiver according to claim 1.
A television receiver characterized in that information on the content is acquired via a network. The television receiver according to claim 1.
A television receiver characterized in that information on the content is extracted from a transport stream of a digital television signal. In a television receiving method in which content and information related to the content are supplied,
A keyword creation step to create keywords,
A storage step of storing the keyword and an adjustment parameter for adjusting at least one of image quality and sound quality in association with each other;
A registration step of registering the keyword created by the creating means and the adjustment parameter in association with each other in the storage means;
An adjustment step of adjusting at least one of image quality and sound quality of the output content by the adjustment parameter corresponding to the extracted keyword when the keyword is extracted from the information related to the content, To receive television.

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