JP2007013561A - Closed-captioned broadcasting receiver and closed-captioned broadcasting receiving method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make only subtitles of a program having desired program attribute hidden even when a setting of subtitles display/non-display is set 'subtitles displayed', and to make only subtitles of the program having desired program attribute display even when the setting of subtitles display/non-display is set 'subtitles hidden'. <P>SOLUTION: In the closed-captioned broadcasting receiver, a first subtitles display setting means sets the subtitles display/non-display. A second subtitles display setting means set at subtitles display/non-display with respect to a program having desired program attribute information set by the user. A control means controls display/non-display of the subtitles according to the subtitle display/non-display set by the second subtitles display setting means when decoded program attribute information is desired program attribute information set by the second subtitle display setting means or otherwise according to the subtitle display/non-display set by the first subtitles display setting means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a receiving apparatus, and more particularly to a caption broadcasting receiving apparatus that extracts and displays caption information from a television signal.

  Currently, a digital broadcasting system that performs transmission and reception in a digital manner has been put into practical use. This system is a multi-channel digital transmission system that multiplexes and transmits multi-channel encoded image data that has been compression-encoded with a high efficiency by the MPEG (Moving Picture Image Coding Experts Group) system, which is a standard standard for moving picture coding. Is used. The system using the MPEG system is described in the document “ISO / IEC 13818-1”.

  On the broadcasting station side, the digital video / audio data and additional information data constituting the program are respectively compressed by the above-described compression method, and a multiplexed signal in the form of TS (transport stream) is formed and broadcast. Furthermore, program attribute information such as program genre classification is time-division multiplexed as program information data.

  In the genre classification of the program information data, “major classification” and “medium classification” are described as information relating to the program. The "major category" includes news, sports, movies, etc., and the "medium category" is a subdivision of the "major category". If the "major category" is news, the weather, politics, economy, etc. If the “major category” is a movie, there are Western movies, Japanese movies, and animation. Genre classification is used for program refinement search. The signal format is described in, for example, “ARIB STD-B15” and “ARIB STD-B14” as digital broadcast operation regulations.

  The subtitle broadcast was developed for the hearing impaired and is broadcast in a time-division multiplexed manner on the TS signal in the same manner as the program information data. In the receiver, the multiplexed data is decoded and displayed on the screen by being integrated with the video data.

In addition, there are other uses of subtitles such as learning a foreign language and knowing the contents of a program even when the sound is muted.
The receiver has a means for setting a viewer's preference for displaying or not displaying subtitles. For example, the setting for displaying subtitles is “subtitle ON”, and the setting for non-displaying subtitles is “subtitle OFF” (see, for example, Patent Document 1). When “Subtitle ON” is set, the subtitle is displayed when viewing a channel in which subtitle data exists. If “Subtitle OFF” is set, the subtitle is controlled not to be displayed on the screen even when subtitle data exists in the channel being viewed.
Japanese Patent Laid-Open No. 07-250280

  However, in the above-described prior art, when the setting of the receiver is set to “subtitle ON”, when a broadcast in which subtitle data is multiplexed is received, the subtitle is always displayed even in a program that does not want to see the subtitle. In order to turn it off, there was a problem that the setting of the receiver had to be “subtitle OFF” each time. In addition, when the setting of the receiver is set to “Subtitle OFF”, there is a problem in that the subtitle that the user wants to watch is missed.

  Therefore, the present invention has been made to solve the above problem, and based on the program attribute information, it is possible to make the subtitles hidden only for programs that the viewer wants to prohibit the display of subtitles. Similarly, an object is to display subtitles only for programs desired by the viewer based on the program attribute information.

  To achieve the above object, according to the present invention, demodulating means for demodulating a digital television broadcast signal to obtain a bit stream of digital data, and decoding the bit stream obtained by the demodulating means to obtain program attribute information Decoding means, subtitle display setting means for setting display / non-display of subtitles for a program having desired program attribute information set by a user, and program attribute information decoded by the decoding means includes the subtitle display setting means. And a control means for controlling the display / non-display of subtitles according to the subtitle display / non-display set by the subtitle display setting means when the desired program attribute information is set by the subtitle broadcast receiving apparatus. I will provide a.

The present invention relating to the apparatus is also established as an invention relating to a method, and the present invention relating to a method is also established as an invention relating to an apparatus.
Further, the present invention relating to an apparatus or a method has a function for causing a computer to execute a procedure corresponding to the invention (or for causing a computer to function as a means corresponding to the invention, or for a computer to have a function corresponding to the invention It can also be realized as a program (for realizing the program), and can also be realized as a computer-readable recording medium on which the program is recorded.

  According to the present invention, based on the program attribute information, the purpose is to allow the viewer to hide only the subtitles that the viewer wants to prohibit the display of the subtitles. Similarly, based on the program attribute information, It is an object to make it possible to display subtitles only for viewers' favorite programs.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 schematically shows an appearance of a digital television broadcast receiving apparatus 111 to which the present invention is applied, and an example of a network system configured around the digital television broadcast receiving apparatus 111.

  That is, the digital television broadcast receiver 111 mainly includes a thin cabinet 112 and a support base 113 that supports the cabinet 112 upright. Then, it is transmitted to the cabinet 112 from, for example, a flat panel type video display device 114 including a surface-conduction electron-emitter display (SED) display panel, a liquid crystal display panel, a speaker 115, an operation unit 116, and a remote controller 117. A light receiving unit 118 for receiving operation information is installed.

  Further, for example, a first memory card 119 such as an SD (Secure Digital) memory card, an MMC (Multimedia Card), and a memory stick can be attached to and detached from the digital television broadcast receiving apparatus 111. Information such as programs and photographs is recorded on and reproduced from the memory card 119.

  Further, for example, a second memory card (IC card) 120 in which contract information or the like is recorded can be attached to and detached from the digital television broadcast receiving apparatus 111. Information is stored in the second memory card 120. Recording / reproduction is performed.

  The digital television broadcast receiver 111 includes a first LAN (Local Area Network) terminal 121, a second LAN terminal 122, a USB (Universal Serial Bus) terminal 123, and an i. A LINK terminal 124 is provided.

  Among these, the first LAN terminal 121 is used as a LAN-compatible HDD dedicated port, and information is transferred to the LAN-compatible HDD 125 which is a NAS (Network Attached Storage) by Ethernet (registered trademark). Used for recording and playback.

  In this way, by providing the first LAN terminal 121 as a LAN-compatible HDD dedicated port, program information can be recorded on the HDD 125 with high-definition image quality without being affected by other network environments or network usage conditions. It can be performed stably.

  The second LAN terminal 122 is used as a general LAN-compatible port using Ethernet (registered trademark). For example, the LAN-compatible HDD 127, PC (Personal Computer) 128, It is used to connect devices such as a DVD (Digital Versatile Disk) recorder 129 with a built-in HDD and to transmit information with these devices.

  The PC 128 has a function for operating as a content server device in a home network, and further includes UPnP (Universal Plug and Play) provided with a service for providing URI (Uniform Resource Identifier) information necessary for content access. ) Configured as a compatible device.

  As for the DVD recorder 129, since the digital information communicated via the second LAN terminal 122 is information only for the control system, analog video and audio information is exchanged with the digital television broadcast receiver 111. In order to transmit, it is necessary to provide a dedicated analog transmission line 130.

  Further, the second LAN terminal 122 is connected to a network 132 such as the Internet via a broadband router 131 connected to the hub 126, and transmits information to and from the PC 133, the mobile phone 134, etc. via the network 132. Used to do.

  The PC 133 is configured as a UPnP-compatible device having a function for operating as a content server device and further including a service for providing URI information necessary for accessing the content.

  The USB terminal 123 is used as a general USB-compatible port. For example, a mobile phone 136, a digital camera 137, a card reader / writer 138 for a memory card, an HDD 139, a keyboard 140, etc. via a hub 135. USB devices are connected to each other and used for information transmission with these USB devices.

  Further, i. The LINK terminal 124 is used to serially connect, for example, an AV-HDD 141, a D (Digital) -VHS (Video Home System) 142, and the like and perform information transmission with these devices.

FIG. 2 shows a main signal processing system of the digital television broadcast receiving apparatus 111 described above.
That is, the satellite digital television broadcast signal received by the BS / CS digital broadcast receiving antenna 243 is supplied to the satellite digital broadcast tuner 245 a via the input terminal 244.

  The tuner 245a selects a broadcast signal of a desired channel based on a control signal from the control unit 261, and outputs the selected broadcast signal to a PSK (Phase Shift Keying) demodulator 245b.

  The PSK demodulator 245b demodulates the broadcast signal selected by the tuner 245a according to a control signal from the control unit 261, obtains a transport stream including a desired program, and outputs the transport stream to the TS decoder 245c.

  The TS decoder 245c performs TS decoding processing on the signal multiplexed by the transport stream (TS) according to the control signal from the control unit 261, and outputs a digital video signal and audio signal of a desired program to the signal processing unit 247. Then, various data (service information), electronic program guide (EPG) information, program attribute information (program genre, etc.), subtitle information, etc. for acquiring a program sent by digital broadcasting are output to the control unit 261.

  The terrestrial digital television broadcast signal received by the terrestrial broadcast receiving antenna 248 is supplied to the terrestrial digital broadcast tuner 250 a via the input terminal 249.

  The tuner 250a selects a broadcast signal of a desired channel based on a control signal from the control unit 261, and outputs the selected broadcast signal to an OFDM (Orthogonal Frequency Division Multiplexing) demodulator 250b.

  The OFDM demodulator 250b demodulates the broadcast signal selected by the tuner 250a based on the control signal from the control unit 261, obtains a transport stream including a desired program, and outputs the transport stream to the TS decoder 250c.

  The TS decoder 250c performs TS decoding processing on the signal multiplexed by the transport stream (TS) according to the control signal from the control unit 261, and outputs a digital video signal and audio signal of a desired program to the signal processing unit 247. Then, various data for acquiring a program transmitted by digital broadcasting, electronic program guide (EPG) information, program attribute information (program genre, etc.), and the like are output to the control unit 261.

  The terrestrial analog television broadcast signal received by the terrestrial broadcast receiving antenna 248 is supplied to the terrestrial analog broadcast tuner 252a via the input terminal 249, so that the broadcast signal of the desired channel is selected. Bureau. The broadcast signal selected by the tuner 252a is supplied to the analog demodulator 252b, demodulated into an analog video signal and audio signal, and then output to the signal processing unit 247.

  Here, the signal processing unit 247 selectively performs predetermined digital signal processing on the digital video signal and audio signal respectively supplied from the PSK demodulator 245b and the OFDM demodulator 250b, and the graphic processing unit 254. And output to the audio processing unit 255.

  The signal processing unit 247 is connected to a plurality (four in the illustrated case) of input terminals 256a, 256b, 256c, and 256d. These input terminals 256a to 256d allow analog video signals and audio signals to be input from the outside of the digital television broadcast receiver 111, respectively.

  The signal processing unit 247 selectively digitizes the analog video signal and audio signal supplied from the analog demodulator 253 and the input terminals 256a to 256d, respectively, and performs the digitization on the digitized video signal and audio signal. After performing predetermined digital signal processing, the digital signal is output to the graphic processing unit 254 and the audio processing unit 255.

  The graphic processing unit 254 has a function of superimposing and outputting the OSD signal generated by the OSD (On Screen Display) signal generation unit 257 on the digital video signal supplied from the signal processing unit 247. The graphic processing unit 254 selectively outputs the output video signal of the signal processing unit 247 and the output OSD signal of the OSD signal generation unit 257, and combines both outputs so as to form a half of the screen. Can be output.

  Further, when displaying a caption by caption broadcasting, the graphic processing unit 254 performs a process of superimposing the caption information on the video signal based on the control signal and the caption information from the control unit 261.

  The digital video signal output from the graphic processing unit 254 is supplied to the video processing unit 258. The video processing unit 258 converts the input digital video signal into an analog video signal in a format that can be displayed on the video display 114, and then outputs the analog video signal to the video display 114 to display the video. 259 to the outside.

  The audio processing unit 255 converts the input digital audio signal into an analog audio signal in a format that can be reproduced by the speaker 115, and then outputs the analog audio signal to the speaker 115 for audio reproduction. Through the outside.

  Here, in the digital television broadcast receiving apparatus 111, all operations including the above-described various receiving operations are comprehensively controlled by the control unit 261. The control unit 261 includes a CPU (Central Processing Unit) or the like, receives operation information from the operation unit 116, or receives operation information sent from the remote controller 117 via the light receiving unit 118. Each part is received and controlled so that the operation content is reflected.

  In this case, the control unit 261 mainly includes a ROM (Read Only Memory) 261a that stores a control program executed by the CPU, a RAM (Random Access Memory) 261b that provides a work area for the CPU, and various setting information. And a non-volatile memory 261c in which control information and the like are stored.

  The control unit 261 is connected to a card holder 266 to which the first memory card 119 can be attached via a card I / F (Interface) 265. Thereby, the control unit 261 can perform information transmission via the card I / F 265 with the first memory card 119 mounted on the card holder 266.

  Further, the control unit 261 is connected via a card I / F 267 to a card holder 268 in which the second memory card 120 can be mounted. Thus, the control unit 261 can perform information transmission via the card I / F 267 with the second memory card 120 mounted on the card holder 268.

  The control unit 261 is connected to the first LAN terminal 121 via the communication I / F 269. Accordingly, the control unit 261 can perform information transmission via the communication I / F 269 with the LAN-compatible HDD 125 connected to the first LAN terminal 121. In this case, the control unit 261 has a DHCP (Dynamic Host Configuration Protocol) server function, and performs control by assigning an IP (Internet Protocol) address to the LAN-compatible HDD 125 connected to the first LAN terminal 121.

  Further, the control unit 261 is connected to the second LAN terminal 122 via the communication I / F 270. Accordingly, the control unit 261 can perform information transmission with each device (see FIG. 1) connected to the second LAN terminal 122 via the communication I / F 270.

  The control unit 261 is connected to the USB terminal 123 via the USB I / F 271. Accordingly, the control unit 261 can perform information transmission with each device (see FIG. 1) connected to the USB terminal 123 via the USB I / F 271.

  Further, the control unit 261 is configured to i. Through the LINK I / F272 i. The LINK terminal 124 is connected. As a result, the control unit 261 performs i. Each device (see FIG. 1) connected to the LINK terminal 124; i. Information transmission can be performed via the LINK I / F 272.

  In this embodiment, a registration file describing storage IDs (including IP addresses and device names) assigned to the HDD 125, HDD 127, PC 128, and DVD recorder 129 at the time of initial registration is stored and held in the HDD 125.

In addition, the storage IDs of the HDD 125, the HDD 127, the PC 128, and the DVD recorder 129 are stored in the nonvolatile memory 261c.
The control unit 261 includes (1) a server device discovery function 261d that uses UPnP, (2) a content information acquisition function 261e that uses UPnP, and (3) a content access control function 261f. And.

  (1) The control unit 261 uses the UPnP discovery function to discover UPnP compatible devices on the network by using the server device discovery function 261d. For example, the server device discovery function 261d discovers the PC 128 using the UPnP discovery function.

  (2) The control unit 261 controls the UPnP compatible device using the UPnP control function by the content information acquisition function 261e, and acquires URI information necessary for accessing the content in the UPnP compatible device. For example, the content information acquisition function 261e acquires the URI information necessary for controlling the PC 128 and accessing the content stored in the HDD or the like in the PC 128 from the PC 128.

  (3) The control unit 261 uses the content access control function 261f to obtain the IP address information of the server device acquired by the server device discovery function 261d, the IP address information acquired from the URI information acquired by the content information acquisition function 261e, and the digital Based on the IP address and netmask assigned to the LAN terminal 122 of the television broadcast receiver 111, it is determined whether or not the content can be accessed. If the control unit 261 determines that access is permitted, the control unit 261 allows the content access to be permitted.

Next, the subtitle ON / OFF setting operation in the above configuration will be described in detail with reference to FIGS.
FIG. 3 is a flowchart for explaining the operation of setting caption ON / OFF.
Step S301: In FIG. 3, the viewer operates the operation unit 116 to display the “caption ON / OFF setting menu” shown in FIG. 4, and sets caption ON / OFF. The viewer selects and sets “Subtitle ON” when displaying the subtitle, and “Subtitle OFF” when not displaying the subtitle. The set data is stored in, for example, the nonvolatile memory 261c in the control unit 261. The example of FIG. 4 is a diagram in a state where “caption ON” is selected. By setting “Subtitle ON”, subtitles are displayed for subtitle broadcast programs. Also, by setting “Subtitle OFF”, subtitles are not displayed even for subtitle broadcast programs.

  Step S302: Next to step S301, a genre for preferentially turning ON / OFF the caption is set. The genre for which the subtitles are turned on / off preferentially is a setting that takes precedence over the setting of “subtitles ON” or “subtitles OFF” in step S301, and the ON / OFF of subtitles is set for each genre. Can do. The genre of the program that wants to see subtitles is registered in the “Subtitle ON” column, and the genre of the program that does not want to see subtitles is registered in the “Subtitle OFF” column. The registered data is stored as a caption display / non-display genre setting table in the nonvolatile memory 261c in the control unit 261, for example. In the example shown in FIG. 4, the genre names “news”, “sports”, and “dish” are registered in “subtitles ON”, and the genre names “movie” and “animation” are registered in “subtitles OFF”.

Next, the subtitle ON / OFF display operation when set as described above will be described in detail with reference to FIG.
FIG. 5 is a flowchart for explaining a subtitle ON / OFF display operation by the control unit 261.
Step S501: Genre information is extracted from the program currently being viewed.
Step S502: The control unit 261 accesses the subtitle display / non-display genre setting table set in the non-volatile memory 261c in the control unit 261, so that the genre extracted in step S501 is a genre of “subtitle ON”. It is determined whether the genre is “Subtitles OFF”, the genre “Subtitles ON”, or the genre “Subtitles OFF”. If the genre extracted in step S501 is a genre of “caption ON”, the process proceeds to step S504 to display subtitles. If the genre extracted in step S501 is a genre of “subtitles OFF”, the process proceeds to step S505 to hide the subtitles. If the genre extracted in step S501 is neither a “caption ON” genre nor a “caption OFF” genre, the process proceeds to step S503.

  Step S503: The control unit 261 accesses the information set in the non-volatile memory 261c in the control unit 261, so that the subtitle ON / OFF setting set in step S301 in FIG. It is determined whether or not “Subtitle OFF”. In the case of the genre of “caption ON”, the process proceeds to step S504 to display the subtitle. If the genre is “Subtitle OFF”, the process proceeds to step S505 to hide the subtitle.

  Step S504: The control unit 261 controls the OSD signal generation unit 257 and the graphic processing unit 254 to superimpose the subtitle on the video signal, thereby displaying the video with the subtitle superimposed thereon on the video display 114.

  Step S505: The control unit 261 controls the OSD signal generation unit 257 and the graphic processing unit 254 to hide the subtitles by not superimposing the subtitles on the video signal, and displays the video on which the subtitles are not superimposed on the video display 114. To display.

For example, when the setting is as shown in FIG. 4 and the genre of the currently viewed program is “movie”, the caption is turned off.
As described above, even if “Subtitle OFF” is set in the subtitle ON / OFF setting of FIG. 4, “Subtitle ON” is set in the “Genre to turn ON / OFF subtitles preferentially” in FIG. 4. When a program matching the genre registered in “” is received, subtitles are displayed. In addition, even if “Subtitle ON” is set in the subtitle ON / OFF setting in FIG. 4, “Subtitle OFF” is set in the “Genre to turn ON / OFF subtitles preferentially” in FIG. 4. When a program matching the registered genre is received, the subtitle is not displayed. Furthermore, if none of the genres registered in “Genre to turn ON / OFF subtitles preferentially” in FIG. 4 matches the subtitle ON / OFF setting in FIG.

  As a result, it is possible to hide only the programs that the viewer wants to prohibit the display of subtitles based on the program attribute information, and similarly, only the programs desired by the viewer based on the program attribute information are displayed. Can be displayed.

In the first embodiment, display / non-display of captions can be controlled based on program genre data.
Even if the main subtitle display / non-display setting of the receiver is “display subtitles”, subtitles can be hidden only for programs with desired program attributes, and only for specific programs It is possible to prevent subtitles from being displayed without setting. Even if the main caption display / non-display setting is “no caption display”, captions can be displayed only for programs having desired program attributes so that captions are not missed. it can.

  The present invention has been made to solve the above problem, and an object of the present invention is to make it possible to hide subtitles only for programs that the viewer wants to prohibit display of subtitles based on program attribute information. Similarly, it is an object of the present invention to allow subtitles to be displayed only for viewers' favorite programs based on program attribute information.

(Second embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. This second embodiment is a modification of the first embodiment, and since FIG. 1 and FIG. 2 are common, description thereof will be omitted, and only different parts will be described.

  In the first embodiment, the subtitle ON / OFF is controlled in preference to the normal “subtitle ON / OFF” setting by the “genre for preferentially turning on / off the subtitle”. In this second embodiment, instead of this, the subtitle ON / OFF is controlled with priority over the normal “subtitle ON / OFF” setting by the “channel with priority ON / OFF subtitle”. is there.

First, the subtitle ON / OFF setting operation will be described in detail with reference to FIGS.
FIG. 6 is a flowchart for explaining an operation for setting ON / OFF of captions.
Step S601: In FIG. 6, the viewer operates the operation unit 116 to display the “caption ON / OFF setting menu” shown in FIG. 7, and sets caption ON / OFF. The viewer selects and sets “Subtitle ON” when displaying the subtitle, and “Subtitle OFF” when not displaying the subtitle. The set data is stored in, for example, the nonvolatile memory 261c in the control unit 261. The example of FIG. 7 is a diagram in a state where “caption ON” is selected. By setting “Subtitle ON”, subtitles are displayed for subtitle broadcast programs. Also, by setting “Subtitle OFF”, subtitles are not displayed even for subtitle broadcast programs.

  Step S602: Next to step S601, a channel for preferentially turning ON / OFF the caption is set. This preferential channel ON / OFF channel is a setting that has priority over the setting of “Subtitle ON” or “Subtitle OFF” in step S601, and sets ON / OFF of subtitles for each channel. Can do. The channel of the program that wants to see subtitles is registered in the “Subtitle ON” column, and the channel of the program that does not want to see subtitles is registered in the “Subtitle OFF” column. The registered data is stored as a caption display / non-display channel setting table in the nonvolatile memory 261c in the control unit 261, for example. In the example illustrated in FIG. 4, “101ch”, “102ch”, and “103ch” are registered as “Channel ON”, and “141ch” is registered as a channel “Subtitle OFF”.

Next, a subtitle ON / OFF display operation when set as described above will be described in detail with reference to FIG.
FIG. 8 is a flowchart for explaining a subtitle ON / OFF display operation by the control unit 261.
Step S801: Channel information is extracted from the currently viewed program.
Step S802: The control unit 261 accesses the subtitle display / non-display channel setting table set in the non-volatile memory 261c in the control unit 261, so that the channel extracted in step S801 is a “subtitle ON” channel. Whether the channel is “Subtitle OFF”, “Subtitle ON” or “Subtitle OFF”. If the channel extracted in step S801 is a “subtitle ON” channel, the process proceeds to step S804 to display the subtitle. If the channel extracted in step S801 is a “subtitle OFF” channel, the process advances to step S805 to hide the subtitle. If the channel extracted in step S801 is neither a “caption ON” channel nor a “caption OFF” channel, the process advances to step S803.

  Step S803: The control unit 261 accesses the information set in the nonvolatile memory 261c in the control unit 261, so that the subtitle ON / OFF setting set in step S601 in FIG. It is determined whether or not “Subtitle OFF”. In the case of the “Subtitle ON” channel, the process proceeds to step S804 to display the subtitle. In the case of the “subtitle OFF” channel, the process proceeds to step S805 to hide the subtitle.

  Step S804: The control unit 261 controls the OSD signal generation unit 257 and the graphic processing unit 254 to display the video on which the caption is superimposed on the video display 114 by superimposing the caption on the video signal.

  Step S805: The control unit 261 controls the OSD signal generation unit 257 and the graphic processing unit 254 to hide the subtitles by not superimposing the subtitles on the video signal, and displays the video on which the subtitles are not superimposed on the video display 114. To display.

For example, when the setting is as shown in FIG. 6 and the channel of the currently viewed program is “141ch”, the caption is turned off.
In this way, even if “Subtitle OFF” is set in the subtitle ON / OFF setting of FIG. 7, “Subtitle ON” is set in the “Channel for priority ON / OFF of subtitles” setting in FIG. 7. When a program matching the channel registered in “” is received, subtitles are displayed. In addition, even if “Subtitle ON” is set in the subtitle ON / OFF setting of FIG. 4, “Subtitle OFF” is set in the “Channel for priority ON / OFF of subtitles” setting in FIG. 4. When a program matching the registered channel is received, subtitles are not displayed. Furthermore, when none of the channels registered in “Channel for preferentially turning ON / OFF subtitles” in FIG. 4 conforms to the subtitle ON / OFF setting in FIG.

  As a result, it is possible to hide only the programs that the viewer wants to prohibit the display of subtitles based on the program attribute information, and similarly, only the programs desired by the viewer based on the program attribute information are displayed. Can be displayed.

  Even if the main subtitle display / non-display setting of the receiver is “display subtitles”, subtitles can be hidden only for programs with desired program attributes, and only for specific programs It is possible to prevent subtitles from being displayed without setting. Even if the main caption display / non-display setting is “no caption display”, captions can be displayed only for programs having desired program attributes so that captions are not missed. it can.

(Other embodiments)
As other modified examples of the desired program attribute, in addition to the genre and the channel, the following modification is similarly performed as in the second embodiment, so that (1) a predetermined time zone, (2) a specific program, (3) The same effect can be obtained even if the “priority is turned ON / OFF preferentially” is controlled by the program viewing age restriction data or the like.

  For example, if the display / non-display of subtitles is controlled based on a predetermined time zone, the display / non-display of subtitles can be controlled based on the predetermined time zone. Moreover, if the display / non-display of subtitles is controlled based on a specific program, the display / non-display of subtitles can be controlled based on the specific program. Moreover, if the display / non-display of the caption is controlled based on the program viewing age restriction data, the display / non-display of the caption can be controlled based on the program viewing age restriction data.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined. For example, the first embodiment and the second embodiment may be combined and a genre and a channel may be combined as desired program attributes.

The figure for demonstrating the external appearance of the digital television broadcast receiver 111 to which this invention is applied, and the network system comprised centering on this digital television broadcast receiver 111. FIG. The figure which shows the main signal processing systems of the digital television broadcast receiver. The flowchart for demonstrating the setting operation | movement of ON / OFF of a caption. The flowchart for demonstrating a subtitle ON / OFF setting menu. The figure for demonstrating the display operation | movement of ON / OFF of a subtitle. The flowchart for demonstrating the setting operation | movement of ON / OFF of a caption. The figure for demonstrating a subtitle ON / OFF setting menu. The flowchart for demonstrating a subtitle ON / OFF setting menu.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 111 ... Digital television broadcast receiver, 112 ... Cabinet, 113 ... Support stand, 114 ... Video display, 115 ... Speaker, 116 ... Operation part, 117 ... Remote controller, 118 ... Light receiving part, 119 ... First memory card 120 ... second memory card 121 ... first LAN terminal 122 ... second LAN terminal 123 ... USB terminal 124 ... i. LINK terminal, 125, 127, 139 HDD, 126, 135 hub, 128, 133 ... PC, 129 DVD recorder, 130 analog transmission path, 131 broadband router, 132 network, 134, 136 mobile phone, 137: Digital camera, 138: Card reader / writer, 140: Keyboard, 141: AV-HDD, 142: D-VHS.

Claims (5)

Demodulation means for demodulating a digital television broadcast signal to obtain a bit stream of digital data;
Decoding means for decoding the bitstream obtained by the demodulation means to obtain program attribute information;
Subtitle display setting means for setting subtitle display / non-display for a program having desired program attribute information set by a user;
When the program attribute information decoded by the decoding means is the desired program attribute information set by the subtitle display setting means, the subtitle display / non-display is performed according to the subtitle display / non-display set by the subtitle display setting means. A subtitle broadcast receiving apparatus comprising: control means for controlling. Demodulation means for demodulating a digital television broadcast signal to obtain a bit stream of digital data;
Decoding means for decoding the bitstream obtained by the demodulation means to obtain program attribute information;
First subtitle display setting means for setting subtitle display / non-display;
Second subtitle display setting means for setting subtitle display / non-display for a program having desired program attribute information set by a user;
When the program attribute information decoded by the decoding means is the desired program attribute information set by the second subtitle display setting means, according to the subtitle display / non-display set by the second subtitle display setting means, Other than this, a subtitle broadcast receiving apparatus comprising control means for controlling display / non-display of subtitles in accordance with subtitle display / non-display set by the first subtitle display setting means.   The setting information set in the second caption display setting means is any one of program genre data, channel data, program viewing age restriction data, and program broadcast time data. Subtitle broadcast receiver. By demodulating means, the digital television broadcast signal is demodulated to obtain a bit stream of digital data,
The decoding means obtains program attribute information by decoding the bitstream obtained by the demodulation means,
The subtitle display setting means sets subtitle display / non-display for a program having desired program attribute information set by the user,
When the program attribute information decoded by the decoding means is the desired program attribute information set by the caption display setting means by the control means, the caption display is performed according to the caption display / non-display set by the caption display setting means. / Subtitle broadcast receiving method characterized by controlling non-display. By demodulating means, the digital television broadcast signal is demodulated to obtain a bit stream of digital data,
The decoding means obtains program attribute information by decoding the bitstream obtained by the demodulation means,
The first caption display setting means sets caption display / non-display,
The subtitle display setting means sets subtitle display / non-display for a program having desired program attribute information set by the user,
When the program attribute information decoded by the decoding means is the desired program attribute information set by the second subtitle display setting means by the control means, the subtitle display / set by the second subtitle display setting means is set. A subtitle broadcast receiving method characterized by controlling display / non-display of subtitles according to non-display and otherwise according to subtitle display / non-display set by the first subtitle display setting means.

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