JP2016116032A - Receiving device, broadcasting system, receiving method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an operation by a user with respect to setting in multiplexed text broadcasting.SOLUTION: A character data detection section detects character data from received data received through a broadcast wave. A service discrimination section discriminates a service type of the character data. A display setting section sets at least a part of elements in setting information of one service type as same as the element in setting information of the other service type. A display control part displays characters indicated by the character data in a display mode indicated by the setting information of the discriminated service type.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a receiving apparatus, a broadcasting system, a receiving method, and a program.

  Conventionally, text multiplex broadcasting provided in television broadcasting is a service provided by multiplexing character data and data accompanying the character data. Character multiplex broadcasting is also called character broadcasting. Character multiplex broadcasting includes subtitle broadcasting and character supervision. Subtitle broadcasting is a service provided in synchronization with a main program (video, audio). Subtitle broadcasting includes, for example, a service intended to support a hearing impaired person by displaying characters indicating the utterance content in a program. Subtitle broadcasting is also used to provide English subtitles and Japanese subtitles for language programs. The character supermarket is a service provided independently without synchronizing with the program. The character super is also called asynchronous subtitle, and may be used for, for example, earthquake bulletins, weather bulletins, news bulletins, and other bulletins that flow independently of the program.

In Patent Document 1, even when the setting of caption display / non-display is set by the viewer as “caption display”, the desired program attribute (program genre) selected in advance by the viewer A subtitle broadcast receiving apparatus capable of hiding subtitles only for a program having a message is described. In addition, the subtitle broadcast receiving apparatus displays subtitles only for programs having desired program attributes even when the subtitle display / non-display setting is set by the viewer as “subtitle non-display”.
Further, Non-Patent Document 1 describes a TTML (Timed Text Modeling Language) encoding method that can specify display timing, layout, and the like in subtitle broadcasting and text supervision in 8K ultra-high definition television broadcasting (UHDTV: Ultra High Definition Television). Is described.

JP 2007-13561 A

“Hybrid cast compatible with 8K Super Hi-Vision”, [online], Japan Broadcasting Corporation, [November 25, 2014 search], Internet <URL: https: // www. nhk. or. jp / strl / open2014 / tenji / pdf / tenji01. pdf>

  Subtitle broadcasting and text supervision are services that are separate from each other, and their functions are exhibited by the user setting each. Since the setting of the display mode of subtitle broadcasting and text supervision generally includes a plurality of setting items, there is a problem that the operation related to the setting is complicated for the user. In addition, since subtitle broadcasting and text supermarket are common services that display transmitted characters, the difference between the two services is not fully understood by the user, and user-specific settings are made for each service. Lacks motivation for

  The present invention has been made to solve the above problems, and one aspect of the present invention includes a character data detection unit that detects character data from received data received by broadcast waves, and a service type of the character data. A service discriminating unit, a display setting unit for defining at least some elements in the setting information of one service type to be the same as the elements in the setting information of other service types, and the service type discriminated by the service discriminating unit A display control unit that displays the character indicated by the character data in the display mode indicated by the setting information.

  According to the present invention, it is possible to reduce operations related to settings by a user in teletext broadcasting.

It is a block diagram which shows the structure of the broadcast system which concerns on 1st Embodiment. It is a block diagram which shows the structure of the transmitter which concerns on 1st Embodiment. It is a figure which shows the example of MPT. It is a figure which shows the example of MH-data encoding system descriptor. It is a figure which shows the example of additional identification information. It is a figure which shows the example of MFU. It is a block diagram which shows the structure of the receiver which concerns on 1st Embodiment. It is a block diagram which shows the structure of the control part which concerns on 1st Embodiment. It is a figure for demonstrating the setting of a character superimposition. It is a figure for demonstrating the setting of subtitle broadcasting. It is a figure which shows the example of a subtitle broadcast by 1st Embodiment, and a display of a character superimposition. It is a flowchart which shows the display setting process which concerns on 1st Embodiment. It is a flowchart which shows the reception process which concerns on 1st Embodiment. It is a figure which shows the example of a display of the character information by 2nd Embodiment. It is a flowchart which shows the reception process which concerns on 2nd Embodiment. It is a figure which shows the example of a display of the character information by 3rd Embodiment. It is a flowchart which shows the reception process which concerns on 3rd Embodiment. It is a figure which shows the example of a display of the character information by 4th Embodiment. It is a flowchart which shows the reception process which concerns on 4th Embodiment. It is a flowchart which shows the reception process which concerns on 5th Embodiment.

(First embodiment)
A first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a broadcasting system 1 according to the present embodiment. The broadcast system 1 includes a transmission device 11 and a reception device 31. The transmission device 11 configures, for example, broadcasting equipment possessed by a broadcasting company. The reception device 31 receives a broadcast program broadcast from the transmission device 11, displays a video of the received broadcast program, and reproduces the sound of the broadcast program. A broadcast program may be multiplexed with character data. In that case, the receiving device 31 displays the character indicated by the multiplexed character data in a superimposed manner on the video. The receiving device 31 is installed, for example, in each home or business office.

  The transmission device 11 transmits multiplexed data obtained by multiplexing program data representing the content of the broadcast program and character data to the reception device 31 via the broadcast transmission path 12. The program data includes, for example, audio data and video data. The character data is data including character information representing the content of subtitle broadcasting or character superimposition.

  The broadcast transmission path 12 is a transmission path for transmitting various data transmitted by the transmission apparatus 11 to an unspecified number of reception apparatuses 31 in one direction at the same time. The broadcast transmission path 12 is, for example, a radio wave (broadcast wave) in a predetermined frequency band that is relayed by the broadcast satellite 13. A part of the broadcast transmission path 12 may include a communication line, for example, a communication line from the transmission device 11 to a transmission facility for transmitting radio waves.

  The receiving device 31 displays the video of the program based on the program data received from the transmitting device 11 via the broadcast transmission path 12, and reproduces the audio of the program. The receiving device 31 detects character data from various data received from the transmitting device 11, determines the service type of the character data, and the character data detected in the display mode indicated by the setting information corresponding to the determined service type indicates Display characters. The service type is a type of subtitle broadcast or text super. The receiving device 31 determines a predetermined element in the setting information of one broadcast type determined according to the operation input in the same manner as the predetermined element in the setting of another broadcast type. The receiving device 31 is an electronic device having a function capable of receiving a television broadcast, such as a television receiving device, a video recording device, or a smartphone.

(Configuration of transmitter)
Next, the configuration of the transmission device 11 according to the present embodiment will be described.
FIG. 2 is a block diagram illustrating a configuration of the transmission device 11 according to the present embodiment. The transmission device 11 includes a program data acquisition unit 111, a character data acquisition unit 112, a configuration information acquisition unit 113, a multiplexing unit 114, an encryption unit 115, and a transmission unit 116.

  The program data acquisition unit 111 acquires video data indicating video composing a broadcast program and audio data indicating audio. The program data acquisition unit 111 acquires video data encoded by a predetermined video encoding method. The predetermined video encoding method is, for example, ISO / IEC 23008 HEVC (International Organization for Standardization / International Electronic Commission 230308 Part2 High Efficiency Video Standard), which is simply called “High Coding C”.

  The program data acquisition unit 111 acquires audio data encoded by a predetermined audio encoding method. The predetermined audio encoding method is, for example, an audio encoding method defined by ISO / IEC 14496 Part 3 (also simply referred to as MPEG-4 audio). The program data acquisition unit 111 generates program data in a predetermined format from the acquired video data and audio data, and outputs the generated program data to the multiplexing unit 114. Program data in a predetermined format is, for example, MPU (Media Processing Unit) defined by ISO / IEC 23008 Part1 MMT (MPEG Media Transport, also simply referred to as MMT). Each MPU includes video data or audio data of a unit that can perform video and audio decoding processing.

  The character data acquisition unit 112 acquires character data related to caption broadcasting or character superimposition. The character data is data in a predetermined format (for example, a data format described in TTML) including character information indicating the contents of the character broadcast or character superimposition and setting information indicating the display mode thereof. Setting information includes structural information indicating the display position, arrangement direction (vertical, horizontal), etc. as elements, character size, color, presence / absence of background, background color (when background is added), display speed, blinking Includes modification information such as the presence or absence of (flash). TTML is a description language that describes these setting information by enclosing them with a predetermined character string (tag). Each element of the setting information may be referred to as an attribute. In TTML, the character to which the setting information is applied is specified by surrounding it between a start tag and an end tag. In TTML, not all elements of the setting information are necessarily included and are arbitrary. For example, TTML is described in detail in the following source ("Timed Text Markup Language (TTML) 1.0", [online], W3C, [Search on November 25, 2014], Internet <URL : Https://www.w3.org/TR/2010/REC-ttaf1-dffx2010101118/>).

  The configuration information acquisition unit 113 acquires configuration element information, which is information for configuring a service provided in association with broadcasting such as a broadcast program, caption broadcasting, or text supervision. The component information includes assets that are components of broadcast programs and services, that is, a list of video, audio, text information, etc., and information indicating their requirements, for example, information indicating whether subtitle broadcasting or text supervision. . The configuration information acquisition unit 113 generates predetermined format information from the acquired component element information, and outputs the generated configuration information to the multiplexing unit 114. The configuration information in the predetermined format is, for example, an MPT (MMT Package Table) that constitutes an MMT-SI (MMT-System Information). An example of MPT will be described later.

  The multiplexing unit 114 multiplexes the program data input from the program data acquisition unit 111, the character data input from the character data acquisition unit 112, and the configuration information input from the configuration information acquisition unit 113 to obtain a predetermined format ( For example, multiplexed data of a TLV (Type Length Value) packet) is generated. The multiplexing unit 114 outputs the generated multiplexed data to the encryption unit 115.

The encryption unit 115 encrypts the multiplexed data input from the multiplexing unit 114 using a predetermined encryption method (for example, AES (Advanced Encryption Standard)). The encryption unit 115 outputs the encrypted multiplexed data to the transmission unit 116.
The transmission unit 116 transmits the multiplexed data input from the encryption unit 115 to the reception device 31 via the broadcast transmission path 12. Here, the transmitting unit 116 modulates a carrier wave having a predetermined carrier frequency by using multiplexed data that is a baseband signal, and transmits a radio wave (broadcast wave) in a channel band corresponding to the carrier frequency by an antenna (not shown). Radiate.

(MPT data structure)
Next, an example of MPT included in the configuration information will be described.
FIG. 3 is a diagram illustrating an example of MPT. In the example illustrated in FIG. 3, MPT (MMT Package Table) includes an asset type (asset_type) and an asset descriptor area (asset_descriptors_byte) for each asset. In the asset type (asset_type), a code indicating the type of asset is described. As the asset type (asset_type), for example, one of hcv1 indicating video data encoded by HEVC, mp4a indicating audio data encoded by MPEG-4 audio, and stpp indicating timed text is described. Timed text means text information provided by subtitle broadcasting or text supervision.

  The asset descriptor area (asset_descriptors_byte) is an area in which a descriptor for each asset is described. When caption broadcasting or text supervision is provided, an MH-data encoding scheme descriptor (MH-Data_Component_Descriptor ()) is described in this area. The MH-data encoding scheme descriptor (MH-Data_Component_Descriptor ()) is a descriptor used to identify a data encoding scheme for encoding data such as character data.

(MH-data encoding scheme descriptor)
Next, an example of the MH-data encoding scheme descriptor will be described.
FIG. 4 is a diagram illustrating an example of the MH-data encoding scheme descriptor. In the example illustrated in FIG. 4, the MH-data encoding scheme descriptor (MH-Data_Component_Descriptor ()) includes data encoding scheme identification (data_component_id) and additional identification information (additional_data_component_info). When subtitle broadcasting or text supervision is provided, the code “0x0020” is described as the data encoding method identification (data_component_id). The code “0x0020” indicates a caption encoding method in digital broadcasting.

In the additional identification information (additional_data_component_info), additional identification information (Additional_Arib_Subtitle_Info ()) of the caption / character super transmission system having the data structure shown in FIG. 5 is described.
The additional identification information (Additional_Arib_Subtitle_Info ()) includes a caption identification tag (subtitle_tag), a language code (ISO_639_language_code), a caption type (type), a caption description format identification (subtitle_format), and a start MPtum sequence. The The subtitle identification tag (subtitle_tag) is a label for identifying a subtitle broadcast and a text super stream. The language code (ISO_639_language_code) indicates a language identified by the caption identification tag. The caption type (type) indicates a service type, that is, a distinction between caption broadcasting and text super. When a subtitle broadcast is provided, a code “00” is described as a subtitle type (type), and when a superimposing character is provided, a code “01” is described as a subtitle type (type). As the caption description method identification (subtitle_format), a code “0000” indicating the TTML description method is described. The start MPU sequence number (start_mpu_sequence_number) indicates the first MPU sequence number of the caption and the character superimposing that the setting by this descriptor is valid.

  Next, the data structure of the MPU for storing character data will be described. In the subtitle and superimpose processing, the MPU is a processing unit for display or reproduction. The MPU includes character data to be presented in a certain time range. The MPU may further include one or both of an audio file and an image file. One MPU includes one or a plurality of MFUs (Media Fragment Units) and an MPU sequence number. Character data is always included as sub-sample data in the first MFU constituting the MPU of caption and character superimposition. Image data and audio data are each stored as sub-sample data in one MFU. The MPU sequence number is a number for identifying each MPU.

(Data structure of MFU)
Next, an example of MFU will be described. FIG. 6 is a diagram illustrating an example of the MFU. The MFU includes a caption identification tag (subtitle_tag), a caption sequence number (subtitle_sequence_number), a subsample number (subsample_number), a final subsample number (last_subsample_number), and a data type (data_type) and data type (data_type).
The caption sequence number (subtitle_sequence_number) is a sequence number in the entire caption data transmitted with the asset, and is a number incremented between successive MPUs. The subsample number (subsample_number) is a number expressed in ascending order of the subsample (MFU) of data in the MPU. The number of the first subsample in each MPU is zero. The last subsample number (last_subsample_number) is the last subsample number of data transmitted by the MPU. The data type (data_type) is a data type of data stored in the MFU. For example, when character data described in the TTML description method is stored, the code “0000” is described as the data type (data_type). When PNG format image data is stored, the code “0001” is described as the data type (data_type). When audio data in PCM (Pulse Code Modulation) format is stored, a code “0011” is described as a data type (data_type). The data byte (data_byte) is an area in which character data, audio data, image data, and the like to be transmitted are stored in the MFU.

(Receiver configuration)
Next, the configuration of the receiving device 31 will be described. FIG. 7 is a block diagram illustrating a configuration of the receiving device 31 according to the present embodiment. The receiving device 31 includes a receiving unit 311 (tuner), a decoding unit 312, a separation unit 313, an audio decoding unit 314, a mixing unit 315, a reproduction unit 316, a video decoding unit 317, a display synthesis unit 318, a display unit 319, and a storage unit 322. The operation input unit 323 and the control unit 331 are included.

The receiving unit 311 receives the broadcast wave transmitted from the transmission device 11 via the broadcast transmission path 12 by an antenna (not shown). The receiving unit 311 down-converts the received signal in the channel band received as a broadcast wave into a baseband signal and converts it into multiplexed data. The receiving unit 311 outputs the converted multiplexed data to the decoding unit 312.
The decryption unit 312 decrypts the multiplexed data (encrypted) input from the reception unit 311 with a decryption method (for example, AES) corresponding to the method used by the encryption unit 115 of the transmission device 11, Decoded multiplexed data is generated. The decoding unit 312 outputs the generated multiplexed data to the separation unit 313.

  The separation unit 313 separates the multiplexed data input from the decoding unit 312 into program data, character data, and configuration information. The separation unit 313 outputs the character data and the configuration information to the control unit 331. Further, the separation unit 313 extracts audio data and video data from the program data. The separation unit 313 outputs the extracted audio data to the audio decoding unit 314, and outputs the video data to the video decoding unit 317.

The audio decoding unit 314 decodes the audio data input from the separation unit 313 by a decoding method corresponding to the encoding method (for example, MPEG-4 audio) used for encoding, and generates original audio data. . The decoded audio data is data indicating the audio level at each time. The audio decoding unit 314 outputs the decoded audio data to the mixing unit 315.
The mixing unit 315 mixes the audio data input from the audio decoding unit 314 and the audio data input from the control unit 331, and outputs the mixed audio data to the reproduction unit 316.
The playback unit 316 plays back the voice indicated by the voice data input from the mixing unit 315. The playback unit 316 includes, for example, a speaker.

  The video decoding unit 317 decodes the video data input from the separation unit 313 using the decoding method corresponding to the encoding method (for example, HEVC) used for encoding, and the original video data Is generated. The decoded video data is data indicating signal values forming a video (frame image) at each time. The video decoding unit 317 outputs the decoded video data to the display synthesis unit 318.

The display composition unit 318 superimposes the character indicated by the character information input from the control unit 331 on the video data input from the video decoding unit 317 in the display mode indicated by the setting information selected by the control unit 331. Synthesizes the video data superimposed by. The display combining unit 318 outputs the combined video data to the display unit 319. The display unit 319 displays the character indicated by the character information in the display mode indicated by the setting information.
The display unit 319 displays a video based on the video data input from the display synthesis unit 318. The display unit 319 includes a display, for example, a liquid crystal display, an organic EL (Electroluminescence) display, and the like.

The storage unit 322 stores various data. The storage unit 322 includes a storage medium, for example, an HDD (Hard-disk Drive), a flash memory, a ROM (Read-only Memory), a RAM (Random Access Memory), or a combination thereof.
The operation input unit 323 acquires an operation signal generated by receiving an operation input by a user, and outputs the acquired operation signal to the control unit 331. The operation signal includes, for example, a signal indicating power on / off, a signal designating each element of the character information display mode, and a signal indicating a channel corresponding to the frequency band of the broadcast wave. The operation input unit 323 is, for example, an operation button, an input interface that receives an operation signal from a remote controller, or the like.

  The control unit 331 controls various operations of the receiving device 31. For example, the control unit 331 detects the character data input from the separation unit 313 and determines the service type of the detected character data. In addition, the control unit 331 causes the display unit 319 to display characters indicated by the character data detected in the display mode indicated by the setting information corresponding to the determined service type. Further, the control unit 331 generates setting information related to a character display mode for each service type based on the operation signal input from the operation input unit 323. The control unit 331 determines a predetermined partial element in the setting information of one service type to be the same as a predetermined partial element in the setting information of another service type. In addition, when the control unit 331 displays characters related to a plurality of service types on the display unit 319 at the same time, the control unit 331 determines the display positions of the characters so as not to overlap each other.

(Configuration of control unit)
Next, the configuration of the control unit 331 according to the present embodiment will be described. FIG. 8 is a block diagram illustrating a configuration of the control unit 331 according to the present embodiment. The control unit 331 includes a character data detection unit 332, a service determination unit 333, a setting information detection unit 334, a display setting unit 335, and a display control unit 336.

  The character data detection unit 332 detects character data input from the separation unit 313. Specifically, the character data detection unit 332 detects an MPT from the configuration information input from the separation unit 313, and a stream in which stpp indicating timed text is described in the detected MPT asset type (asset_type). Identify. The character data detection unit 332 reads the MH-data encoding scheme descriptor (MH-Data_Component_Descriptor ()) from the asset descriptor area (asset_descriptors_byte) of the identified stream.

  The character data detection unit 332 reads the encoding method (for example, in digital broadcasting) indicated by the code described in the data encoding method identification (data_component_id) of the read MH-data encoding method descriptor (MH-Data_Component_Descriptor ()). Specify the subtitle encoding method. The character data detection unit 332 reads the subtitle identification tag (subtitle_tag) and the start MPU sequence number (start_sem_sub_sequence_sequ_sub_sequence) from the additional identification information (additional_data_component_info) of the MH-data encoding scheme descriptor (MH-Data_Component_Descriptor ()).

  The character data detection unit 332 inputs an MPU whose sequence number is the start MPU sequence number (start_mpu_sequence_number) or later among the MPUs including the read caption identification tag (subtitle_tag). Then, the character data detection unit 332 identifies the MFU in which the code “0000” is described in the data type (data_type) for each input MPU. The character data detection unit 332 reads character data described in the TTML description method from the data byte (data_byte) of each identified MFU. The character data detection unit 332 outputs the character data to the setting information detection unit 334. In addition, the character data detection unit 332 outputs the read additional identification information (additional_data_component_info) to the service determination unit 333.

  The service determination unit 333 reads the code described in the caption type (type) included in the additional identification information (additional_data_component_info) input from the character data detection unit 332, and determines the service type indicated by the read code. When the read code is “00”, the service determination unit 333 determines that the service type is caption broadcasting. The service determination unit 333 outputs a code indicating the service type to the display setting unit 335.

  The setting information detection unit 334 detects setting information described in an area surrounded by a predetermined character string (start tag, end tag) from the character data input from the character data detection unit 332, and the predetermined character The character information to be applied for each setting information is specified based on the arrangement of the columns. The setting information detection unit 334 outputs the detected setting information and the specified character information to the display setting unit 335 and the display control unit 336. In the following description, setting information detected from character data may be referred to as reception setting information.

The display setting unit 335 causes the display unit 319 to display a setting screen for each of the caption broadcast and the text super. Here, the display setting unit 335 reads the setting screen data stored in advance in the storage unit 322 and outputs the read setting screen data to the display composition unit 318. The setting screen data is data representing setting screens for subtitle broadcasting and text super. The setting screen includes a plurality of options for each element of the display mode, and one option for each element can be designated by an operation signal. The display setting unit 335 generates information for each element of the character display mode based on the operation signal input from the operation input unit 323, and sets the setting information including the information for each generated element for each of the subtitle broadcast and the character supermarket. Generate. The display setting unit 335 stores the generated setting information in the storage unit 322. The generation of the setting screen and setting information will be described later.
The display setting unit 335 reads the user setting information related to the service type indicated by the code input from the service determination unit 333 and outputs the read user setting information to the display control unit 336.

  On the setting screen, an item for urging the predetermined elements of the setting information of the subtitle broadcast and the text super to be the same between the subtitle broadcast and the text super may be displayed. When the display setting unit 335 determines that the item has been pressed, the display setting unit 335 determines the predetermined element to be the same between the caption broadcast and the character superimpose. “Pressing” means that the position indicated by the operation signal input from the operation input unit 323 is included in the display area. The predetermined element may be an item that can be determined independently for the caption broadcast and the character superimpose. The predetermined elements include, for example, character size, arrangement direction, color, presence / absence of background, background color (when a background is added), display speed, presence / absence of blinking, and the like. In the following description, setting information generated based on the operation signal may be referred to as user setting information.

  In addition, when character information is input in the same time zone for both caption broadcasting and character superimposing, the display setting unit 335 obtains and obtains a display area based on the display position, the number of characters, and the character size set for each. The display position of either or both of the character information related to the caption broadcasting and the character information related to the character superposition is changed to a position where the display areas do not overlap each other. The display setting unit 335 may include a plurality of candidates for the character information to be changed in the display position and the change amount in the display position, but the character information and the change amount with the smallest total change in the display position from those candidates. A set of may be selected. Further, the display setting unit 335 may set the display position of either one (for example, a character supermarket) above the other. The display setting unit 335 updates the user setting information so as to include information indicating the changed display position as an element, and outputs the updated user setting information to the display control unit 336.

The display control unit 336 receives reception setting information and character information from the setting information detection unit 334 and user setting information from the display setting unit 335. The display control unit 336 generates image data for character display indicating the characters indicated by the character information in the display mode indicated by the user setting information input from the display setting unit 335. The display control unit 336 causes the display unit 319 to display characters indicated by the image data by causing the display composition unit 318 to output the image data.
Here, the display control unit 336 reflects the user setting information input from the display setting unit 335 to the reception setting information input from the setting information detection unit 334, and generates display setting information. The user setting information is prioritized for the elements included in common in the reception setting information and the user setting information. That is, the element of the reception setting information is replaced with the element of the user setting information. The display control unit 336 outputs the generated display setting information and character information to which the display setting information is applied to the display composition unit 318. The display control unit 336 may output display setting information and character information relating to caption broadcasting and character superimpose in the same time period. Note that when the character data input from the separation unit 313 includes voice data, the display control unit 336 outputs the voice data to the mixing unit 315. If the character data input from the separation unit 313 includes image data, the image data is output to the display composition unit 318. Whether or not audio data or image data is included is determined based on the data type (data_type) described in the MFU by the service determination unit 333.

  Next, a processing example of the display setting unit 335 will be described. The storage unit 322 stores character super setting screen data indicating a character super setting screen and subtitle setting screen data indicating a subtitle setting screen in advance. The display setting unit 335 reads one of the setting screen data stored in the storage unit 322, for example, the character super setting screen data, when an operation signal instructing setting of the display mode is input from the operation input unit 323. . The display setting unit 335 causes the display unit 319 to display the character super setting screen by outputting the read character super setting screen data to the display composition unit 318.

  FIG. 9 is a diagram for explaining the setting of the character super. FIG. 9A shows an example of a character super setting screen (character super setting screen 42). On the character super setting screen 42, “display position” and “display character size” as elements of the display mode, and an item “same setting as subtitle” that prompts the setting information to be determined in the same manner as subtitle broadcasting, and 2 Contains one button. "Display position" options include "Top", "Down", "Right" and "Left", and "Display character size" options include "Large", "Medium" and "Small" . In the example of FIG. 9A, the “right” character is thickened and underlined, so that it is displayed with higher visibility than the other options “up”, “down”, and “left”. This display indicates that “right” is designated as the “display position”. In addition, “small” is displayed with higher visibility than the other “large” and “medium” options as the “display character size” options. This display indicates that “small” is designated as the “display character size”. “OFF” is displayed with higher visibility than “ON” as “same setting as subtitle”. This display indicates that it is instructed to make the predetermined elements of the display mode the same as for the caption broadcast.

  The “subtitle setting” button on which the characters “subtitle setting” are displayed is a button for instructing the display setting unit 335 to display the subtitle setting screen when pressed. The “End” button on which “End” is displayed is a button for instructing the display setting unit 335 to end the generation of the setting information when pressed. When the “subtitle setting” button or the “end” button is pressed, the display setting unit 335 determines an option for each element indicated by the operation signal, and generates setting information related to the character super indicated by the determined option. . The display setting unit 335 stores the generated setting information in the storage unit 322.

FIG. 9B shows an example of a character super (character super 52A) displayed before the setting shown in FIG. 9A is performed. In this example, the “display position” is “down” and the “display character size” is “medium”.
FIG. 9C shows an example of a character super (character super 52B) displayed after the setting shown in FIG. 9A is completed. In this example, the “display position” is “right”, and the “display character size” is “small”.

  FIG. 10 is a diagram for explaining the setting of caption broadcasting. FIG. 10A shows an example of a caption setting screen (caption setting screen 43). The subtitle setting screen 43 includes an item “display” for designating whether or not to perform the display, “display position” and “display character size” as elements of the display mode, and setting information between the character superimpose. Includes an item “same setting as character superimposition” and two buttons for prompting the same setting. The options of “display position” and “display character size” on this screen are the same as the options on the character super setting screen 42. In the example of FIG. 10A, “ON” is designated as “display”, “right” is designated as “display position”, and “small” is designated as “display character size”. In addition, “ON” is instructed as “the same setting as the character superimposition”. Thereby, the display setting unit 335 determines predetermined elements (for example, “display position” and “display character size”) related to the character superimposition in the same manner as the elements related to the caption broadcasting. Therefore, the user can avoid an operation for generating setting information for the character superimposition.

  The “character super setting” button in which the characters “character super setting” are displayed is a button for instructing the display setting unit 335 to display the character super setting screen when pressed. When the “text super setting” button or the “end” button is pressed, the display setting unit 335 determines the option for each element instructed by the operation signal, and generates setting information related to the subtitle broadcast indicated by the determined option To do. The display setting unit 335 stores the generated setting information in the storage unit 322.

FIG.10 (b) shows the example (subtitle broadcast 53A) of the text broadcast displayed before the setting shown to Fig.10 (a) is performed. In this example, the “display position” is “upper” and the “display character size” is “medium”.
FIG.10 (c) shows the example of the character superimposition (caption broadcasting 53B) displayed after the setting shown to Fig.10 (a) was complete | finished. In this example, the “display position” is “right”, and the “display character size” is “small”.

  The display areas may overlap each other between the character supermarket 52B in FIG. 9C and the caption broadcast 53B in FIG. 10C. When character information related to subtitle broadcasting and character superimposing is input, the display setting unit 335 determines whether or not some or all of the display areas overlap each other. When it determines with overlapping, the display setting part 335 changes the display position of either or both of the character information which concerns on a caption broadcast, the character information which concerns on a character superposition in the position where a display area does not mutually overlap. That is, the information regarding the display position among the user setting information generated according to the operation signal is changed.

  FIG. 11 is a diagram illustrating a display example of caption broadcasting and text superimposing according to the present embodiment. In the example shown in FIG. 11, the character supermarket 52D is displayed above the display area of the display unit 319, while the caption broadcast 53B is displayed on the right side of the display area. As shown in FIG. 11, since the display areas of the character supermarket 52D and the caption broadcast 53B are different from each other, the viewer can identify both. Further, since the display position of the text super 52D is generally higher than the display position of the caption broadcast 53B, the text super 52D is more sensitive to the viewer than the caption broadcast 53B.

(Display setting process)
Next, the display setting process according to the present embodiment will be described. FIG. 12 is a flowchart showing display setting processing according to the present embodiment.
(Step S101) The display setting unit 335 causes the display unit 319 to display a character super setting screen. Based on the operation signal input from the operation input unit 323, user setting information relating to the character superimposition is generated. Thereafter, the process proceeds to step S102.
(Step S102) The display setting unit 335 determines whether or not the pressing of the “subtitle setting” button or the “end” button on the character super setting screen is detected. If detected (YES in step S102), the process proceeds to step S103. If not detected (NO in step S102), the process in step S102 is repeated.
(Step S <b> 103) The display setting unit 335 stores user setting information related to the character superimposition in the storage unit 322 and outputs it to the display control unit 336. Thereafter, the process proceeds to step S104.

(Step S104) The display setting unit 335 determines whether or not “ON” is instructed in the “same setting as subtitles” item on the character super setting screen. If it is determined that “ON” is instructed (YES in step S104), the process proceeds to step S105. If it is determined that “OFF” is instructed (NO in step S104), the process proceeds to step S106.
(Step S <b> 105) The display setting unit 335 determines a predetermined element of the setting information related to subtitle broadcasting to be the same as the corresponding element of the user setting information related to the character superimposition. Thereafter, the process proceeds to step S106.
(Step S106) If the button pressed in step S102 is the “end” button (step S106 YES), the display setting unit 335 ends the process shown in FIG. If the button pressed in step S102 is the “subtitle setting” button (NO in step S106), the display setting unit 335 proceeds to step S107.

(Step S107) The display setting unit 335 causes the display unit 319 to display a caption setting screen. Based on the operation signal input from the operation input unit 323, user setting information related to caption broadcasting is generated. Thereafter, the process proceeds to step S108.
(Step S108) The display setting unit 335 determines whether or not the pressing of the “character super setting” button or the “end” button on the subtitle setting screen is detected. If detected (YES in step S108), the process proceeds to step S109. If not detected (NO at step S108), the process at step S108 is repeated.
(Step S <b> 109) The display setting unit 335 stores user setting information related to caption broadcasting in the storage unit 322 and outputs the user setting information to the display control unit 336. Then, it progresses to step S110.

(Step S <b> 110) The display setting unit 335 determines whether or not “ON” is instructed in the “same setting as superimpose” item on the caption setting screen. If it is determined that “ON” is instructed (YES in step S110), the process proceeds to step S111. When it is determined that “OFF” is instructed (NO in step S110), the process proceeds to step S112.
(Step S111) The display setting unit 335 determines a predetermined element of the user setting information related to the character superimposition as the corresponding element of the setting information related to the caption. Thereafter, the process proceeds to step S112.
(Step S112) If the button pressed in step S108 is the “end” button (step S112 YES), the display setting unit 335 ends the process shown in FIG. If the button pressed in step S108 is the “subtitle setting” button (NO in step S112), the display setting unit 335 proceeds to step S101.

(Reception processing)
Next, the reception process according to the present embodiment will be described. FIG. 13 is a flowchart showing the reception process according to the present embodiment.
(Step S201) The character data detection unit 332 detects character data from multiplexed data obtained by down-converting the received broadcast wave. Thereafter, the process proceeds to step S202.
(Step S202) The service determination unit 333 determines whether the service type related to the character data is subtitle broadcasting or character supervision based on the additional identification information constituting the detected character data. Thereafter, the process proceeds to step S203.

(Step S203) The setting information detection unit 334 detects the reception setting information from the character data input from the character data detection unit 332, and specifies the character information to be applied for each setting information. Thereafter, the process proceeds to step S204.
(Step S <b> 204) The display setting unit 335 acquires user setting information related to the determined service type by reading it from the storage unit 322. Thereafter, the process proceeds to step S205.

(Step S205) The display setting unit 335 determines whether or not the character information is acquired in the same time zone for both the caption broadcast and the character supermarket. When it determines with having acquired (step S205 YES), it progresses to step S206. When it determines with not acquiring (step S205 NO), it progresses to step S207.
(Step S206) When the display area obtained based on the set display position overlaps between service types, the display setting unit 335 relates to character information related to subtitle broadcasting and character superposition at positions where they do not overlap each other. Define the display position of either or both of the character information. Thereafter, the process proceeds to step S207.

(Step S207) The display control unit 336 generates display setting information by reflecting the acquired user setting information on the acquired reception setting information. Thereafter, the process proceeds to step S208.
(Step S208) The display control unit 336 outputs the generated display setting information and the character information to be applied to the display composition unit 318, whereby the character indicated by the character information in the display mode specified by the display setting information. Is displayed on the display unit 319. Then, the process shown in FIG. 13 is complete | finished.

As described above, the receiving device 31 according to the present embodiment includes the character data detection unit 332 that detects character data from the received data received by broadcast waves, and the service determination that determines the service type of the detected character data. Part 333 is provided. In addition, the receiving device 31 includes a display setting unit 335 that determines a predetermined element in setting information of a certain service type (for example, text super) to be the same as that element in setting information of another service type (for example, caption broadcasting). . The receiving device 31 also includes a display control unit 336 that displays characters indicated by the character data detected in the display mode indicated by the service type setting information determined by the service determination unit 333.
With this configuration, by generating setting information for one service type in response to a user operation input, a predetermined element of setting information for another service type is generated, and characters are displayed in the display mode indicated by the setting information. Is done. Therefore, it is possible to reduce an operation input for setting a display mode when displaying characters for each service type of the text multiplex broadcasting for the user.

In the receiving device 31, the display setting unit 335 determines the positions of these characters so that the display areas do not overlap each other when characters indicated by the character data of a plurality of service types are displayed simultaneously.
With this configuration, since characters are displayed in different display areas among a plurality of service types, the user can enjoy services of individual service types.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. About the structure same as the description mentioned above, the same code | symbol is attached | subjected and description is used.
The receiving device 31 may receive character data including character information written in a plurality of languages for a certain service type in the same time zone. In that case, the display setting unit 335 of the receiving device 31 according to the present embodiment determines a display position where the display areas of the character information set for each language do not overlap each other using the method described above. The display setting unit 335 updates the user setting information so as to include information indicating the determined display position as an element, and outputs the updated user setting information to the display control unit 336. Since the character information of each language is displayed at a different position, the viewer can identify them. Moreover, the setting by the operation input of the display position for every language can be avoided. The display setting unit 335 may specify the language in which the character information is written by reading a language attribute included as an element included in the reception setting information, or may include a language code (additional_data_component_info) included in the language code ( ISO_639_language) may be read and specified.

(Display example)
Next, a display example of character information according to the present embodiment will be described.
FIG. 14 is a diagram showing a display example of character information according to the present embodiment. In the example illustrated in FIG. 14A, the character super 52E displayed on the display unit 319 when the display position related to the character super is set to “below”. The character supermarket 52E includes character information “Tomorrow's weather is fine” written in Japanese and character information “Tomorrow will be fine.” Written in English. In this example, character information written in Japanese and character information written in English are arranged in the horizontal direction without overlapping in adjacent rows.

Note that character information written in a plurality of languages may be displayed for each of the character supermarket and subtitle broadcast in the same time zone. In that case, the display setting unit 335 determines a display area in which the display areas do not overlap each other between the set of service types and languages.
In the example shown in FIG. 14B, the text super 52F and the caption broadcast 53F displayed when the display position is set to “below” for both the text super and the caption broadcast. The character supermarket 52F and the caption broadcast 53F each include character information written in Japanese and character information written in English, and are arranged without overlapping vertically in adjacent rows. In addition, the character supermarket 52F and the caption broadcast 53F are displayed above and below the display area of the display unit 319, respectively.

(Reception processing)
Next, the reception process according to the present embodiment will be described. FIG. 15 is a flowchart showing a reception process according to the present embodiment. The process illustrated in FIG. 15 includes steps S201 to S204, S207, S208, S215, and S216. The description mentioned above is used about step S201-S204, S207, and S208. In the process shown in FIG. 15, after the process of step S204 is completed, the process proceeds to step S215.

(Step S215) The display setting unit 335 determines whether or not the character information of a plurality of languages is acquired in the same time zone. When it determines with having acquired (step S215 YES), it progresses to step S216. When it determines with not acquiring (step S215 NO), it progresses to step S207.
(Step S216) When the display area obtained based on the set display position overlaps between languages, the display setting unit 335 is located at a position where they do not overlap with each other, either one of the respective language character information or Both display positions are determined. Thereafter, the process proceeds to step S207.

As described above, in the receiving device 31 according to the present embodiment, when the display setting unit 335 displays the characters indicated by the character data of a plurality of languages at the same time, these display areas are not overlapped with each other. Determine the position of the character.
With this configuration, since characters are displayed in different display areas among a plurality of languages, the user can enjoy a teletext service provided in each language.

(Third embodiment)
Next, a third embodiment of the present invention will be described. About the structure same as the description mentioned above, the same code | symbol is attached | subjected and description is used.
In the receiving device 31 according to the present embodiment, when character information is input in the same time zone for both caption broadcasting and character superimposing, the display setting unit 335 further relates to one service type, for example, character superimposing. The elements of setting information for improving the detectability of character information are defined. In order to increase the detectability, for example, the display setting unit 335 increases visibility such as a thicker character width, a larger character size, a color not included in other character information, a background color, a pattern, blinking, and the like. Any or a combination of elements for raising may be defined. Further, the display setting unit 335 may determine information instructing reading of predetermined audio data stored in advance from the storage unit 322 and output to the mixing unit 315 when the character information is output. In that case, the sound indicated by the sound data is reproduced by the reproducing unit 316 when the character information is displayed. The display setting unit 335 updates the user setting information so as to include the determined information as an element, and outputs the updated user setting information to the display control unit 336.

(Display example)
Next, a display example of character information according to the present embodiment will be described.
FIG. 16 is a diagram illustrating a display example of character information according to the present embodiment. In the example shown in FIG. 16A, the text super 52G and the caption broadcast 53B are displayed above and to the right of the display area of the display unit 319, respectively. In this display example, the character width of the character supermarket 52G is thicker than the character width of the caption broadcast 53B. In addition, the background color is added to the character supermarket 52G, whereas the background color is not added to the caption broadcast 53B.
In the example shown in FIG. 16B, a pattern 54 is further added to the beginning of the character string forming the character supermarket 52G. With these settings, the detectability for the character supermarket 52G is higher than that of caption broadcasting.

(Reception processing)
Next, the reception process according to the present embodiment will be described. FIG. 17 is a flowchart showing a reception process according to this embodiment. The process illustrated in FIG. 17 includes steps S201 to S208 and S226. About step S201-S208, the description mentioned above is used. In the process shown in FIG. 17, after the process of step S206 is completed, the process proceeds to step S226.

(Step S226) The display setting unit 335 determines elements of setting information for increasing the detectability of character information related to one service type, for example, a character supermarket. The display setting unit 335 updates the user setting information so as to include the determined information as an element. Thereafter, the process proceeds to step S207.

As described above, in the receiving device 31 according to the present embodiment, when the display setting unit 335 simultaneously displays the characters indicated by the character data of a plurality of service types, the display setting unit 335 has a predetermined service type (for example, character super). The detectability of characters indicated by character data is set higher than the detectability of characters indicated by character data of other service types (for example, subtitle broadcast).
With this configuration, the user can easily notice the display of characters of a predetermined service type. Also, broadcasters and program providers can make the user pay more attention to information provided by a predetermined service type rather than other service types.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described. About the structure same as the description mentioned above, the same code | symbol is attached | subjected and description is used.
Character information may be input to the display setting unit 335 of the receiving apparatus 31 according to the present embodiment in the same time zone for both caption broadcasting and text superimposition. In that case, the display setting unit 335 determines a display area for character information related to a predetermined service type, for example, a character supermarket, in the first display area, and sets other service types, for example, character information related to caption broadcasting. A display area is defined in the second display area. The first display area and the second display area are areas (screen divisions) obtained by subdividing the entire display area of the display unit 319, respectively.
In addition, the display composition unit 318 determines the display area of the video indicated by the video data input from the video decoding unit 317 as the second display area, and the video in which character information related to caption broadcasting is superimposed on the video in the second display area Is generated.

(Display example)
Next, a display example of character information according to the present embodiment will be described. FIG. 18 is a diagram showing a display example of character information according to the present embodiment. In the example illustrated in FIG. 18, the first display area Dv1 and the second display area Dv2 are allocated above and below the entire display area of the display unit 319, respectively. The display area of the character supermarket 52H is included in the first display area Dv1, and the display area of the caption broadcast 53H is included in the second display area Dv2. In the first display area Dv1, the character information related to the character superimposition is displayed, and the video of the program is not superimposed, so that the detectability of the character information related to the character superimposition is improved.

(Reception processing)
Next, the reception process according to the present embodiment will be described. FIG. 19 is a flowchart showing a reception process according to this embodiment. The process shown in FIG. 19 includes steps S201 to S205, S206, S207, and S236. The description mentioned above is used about step S201-S205, S207, and S208. In the process illustrated in FIG. 19, when it is determined in step S205 that the display setting unit 335 has acquired character information in the same time zone for both caption broadcasting and character superimposition (step S205 YES), the process proceeds to step S236.

(Step S236) The display setting unit 335 determines the display area of the character information related to the character supervision in the first display area that is an area where the video is not displayed, and the video is displayed as the display area of the character information related to the caption broadcast. It is determined in the second display area which is an area. Thereafter, the process proceeds to step S207.

As described above, the receiving device 31 according to the present embodiment includes the separation unit 313 that separates video data constituting a program from data received by broadcast waves. Further, when the display setting unit 335 simultaneously displays characters indicated by the character data of a plurality of service types, the position of the character indicated by the character data of a predetermined service type (for example, character super) is displayed in the first display area. The character position indicated by the character data of another service type (for example, subtitle broadcast) is determined in the second display area. The second display area is a display area for displaying the video of the program.
With this configuration, character data of a predetermined service type is displayed in a display area different from that of the video, so that the user can use information provided by the predetermined service type as information provided by the video of the program or other service types. Can be easily determined. Further, since characters of other service types are displayed superimposed on the video of the program, the user can recognize the relevance with the program.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described. About the structure same as the description mentioned above, the same code | symbol is attached | subjected and description is used.
The character data acquisition unit 112 of the transmission device 11 according to the present embodiment may acquire character data including a user setting impossibility flag. The user setting impossibility flag is instruction information instructing not to apply the user setting information generated based on the operation signal using the reception setting information.

  The display control unit 336 of the receiving device 31 according to the present embodiment determines whether the user setting impossibility flag is detected from the character data detected by the character data detection unit 332. When the user setting impossibility flag is detected, the display control unit 336 does not reflect the user setting information input from the display setting unit 335 to the reception setting information input from the setting information detection unit 334, and displays the reception setting information. The information is output to the display composition unit 318 as display setting information. Therefore, the character information is displayed on the display unit 319 in the display mode indicated by the reception setting information.

(Reception processing)
Next, the reception process according to the present embodiment will be described. FIG. 20 is a flowchart showing a reception process according to this embodiment. The process shown in FIG. 20 includes steps S201 to S208 and S244. About step S201-S208, the description mentioned above is used. In the process shown in FIG. 20, after the process of step S203 is completed, the process proceeds to step S244.

(Step S244) The display control unit 336 determines whether a user setting impossibility flag has been detected from the character data detected by the character data detection unit 332 or not. If it is determined that the user setting impossibility flag has been detected (YES in step S244), the process proceeds to step S208. If it is determined that the user setting impossibility flag has not been detected (NO in step S244), the process proceeds to step S204.

As described above, the receiving device 31 according to the present embodiment includes the setting information detection unit 334 that detects the reception setting information indicating the display mode of the character indicated by the detected character data. In addition, when the display control unit 336 detects a user setting impossibility flag instructing use of the reception setting information from the data received by the broadcast wave, the character indicated by the character data in the display mode indicated by the detected reception setting information Is displayed.
With this configuration, the user setting information generated in response to the operation input is ignored, and the display mode of the character indicated by the character data is specified by the detected reception setting information. Therefore, the broadcaster or the program provider can display the characters indicated by the predetermined character data in the display mode set by itself.

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope indicated in the claims, and the technical configurations disclosed in different embodiments are appropriately combined. The obtained embodiment is also included in the technical scope of the present invention.
Each component of the present invention can be arbitrarily selected, and an invention having a selected configuration is also included in the present invention.

For example, the processes shown in FIGS. 13, 15, 17, and 19 may include the process of step S244 after the process of step S203, respectively.
Further, the character data acquisition unit 112 may acquire character data including a permission flag indicating that the user setting is permitted instead of the user setting impossibility flag. When the display control unit 336 of the reception device 31 detects the permission flag from the character data detected by the character data detection unit 332 in step S244, the display setting unit 335 displays the reception setting information input from the setting information detection unit 334. Display setting information reflecting the user setting information input from may be output to the display composition unit 318.
In the receiving device 31, the reproduction unit 316 and the display unit 319 may be configured separately from other configuration units.
In the above-described embodiment, the case where the media transport method according to MMT (MPEG Media Transport) defined by MPEG-H is used as a transmission method for transmitting various data is exemplified. For example, a method defined by MPEG-2 Systems may be used. In addition, a data format, an encryption method, and an encoding method related to transmission may be a format or a method defined by the transmission method.

  Further, a part of the transmission device 11 and a part of the reception device 31 in the above-described embodiment may be realized by a computer. In that case, the program for realizing the control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed. Here, the “computer system” is a computer system built in the recognition data transmission apparatus, and includes an OS and hardware such as peripheral devices. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” is a medium that dynamically holds a program for a short time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, In this case, a volatile memory inside a computer system that serves as a server or a client may be included that holds a program for a certain period of time. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

In addition, this invention can be implemented also in the following aspect.
(1) A character data detection unit that detects character data from received data received by broadcast waves, a service determination unit that determines a service type of the character data, and at least some elements in the setting information of one service type A display setting unit that is defined in the same manner as the elements in the setting information of other service types, a display control unit that displays the characters indicated by the character data in the display mode indicated by the setting information of the service types determined by the service determination unit, A receiving device.

(2) The receiving device according to (1), wherein the display setting unit determines a position of the character so that display areas do not overlap each other when characters indicated by character data of a plurality of service types are displayed simultaneously.

(3) When the display setting unit simultaneously displays characters indicated by character data of a plurality of service types, the character indicated by the character data of other service types indicates the detectability of the characters indicated by the character data of a predetermined service type. The receiving device according to (1) or (2), which is higher than the detectability of.

(4) A separation unit that separates video data constituting a program from the received data, and the display setting unit displays character data indicated by a plurality of service type character data at the same time. The position of the character indicated by is determined in the first display area, the position of the character indicated by the character data of the other service type is determined in the second display area, and the second display area displays the video of the program. (2) or (3) receiving device which is a display area to be displayed.

(5) The display setting unit determines the position of the character so that the display areas do not overlap each other when simultaneously displaying characters indicated by the character data of a plurality of languages. Receiver device.

(6) A setting information detection unit that detects reception setting information indicating a display mode of characters indicated by the character data is provided, and the display control unit detects instruction information that instructs use of the reception setting information from the reception data. Then, the receiving apparatus according to any one of (1) to (5), wherein the character indicated by the character data is displayed in a display mode indicated by the reception setting information.

(7) A broadcasting system including a transmitting device and a receiving device for transmitting character data by broadcast waves, wherein the receiving device detects character data from received data received by broadcast waves; and A service discriminating unit for discriminating the service type of the character data, a display setting unit for defining at least some elements in the setting information of one service type to be the same as the elements in the setting information of other service types, and the service discriminating unit A display control unit that displays the character indicated by the character data in a display mode indicated by the setting information of the service type determined by.

(8) A receiving method for a receiving apparatus, a character data detecting process for detecting character data from received data received by broadcast waves, a service determining process for determining a service type of the character data, and a service type The character data is displayed in the display mode indicated by the display setting process in which at least some elements in the setting information are set to be the same as the elements in the setting information of other service types, and the service type setting information determined in the service determination process. A display control process for displaying a character to be displayed.

(9) At least one of the character data detection procedure for detecting character data from the received data received by the broadcast wave, the service determination procedure for determining the service type of the character data, and the setting information of one service type. Display setting procedure for determining the element of the same part as the element in the setting information of other service type, and a display for displaying the character indicated by the character data in the display mode indicated by the setting information of the service type determined by the service determination procedure A program for executing a control procedure.

  DESCRIPTION OF SYMBOLS 1 ... Broadcasting system, 11 ... Transmission apparatus, 111 ... Program data generation part, 112 ... Character data acquisition part, 113 ... Configuration information acquisition part, 114 ... Multiplexing part, 115 ... Encryption part, 116 ... Transmission part, 12 ... Broadcast transmission path, 13 ... broadcast satellite, 31 ... receiving device, 311 ... receiving unit, 312 ... decoding unit, 313 ... separating unit, 314 ... audio decoding unit, 315 ... mixing unit, 316 ... reproducing unit, 317 ... video decoding unit 318: Display composition unit, 319 ... Display unit, 322 ... Storage unit, 323 ... Operation input unit, 331 ... Control unit, 332 ... Character data detection unit, 333 ... Service discrimination unit, 334 ... Setting information detection unit, 335 ... Display setting unit, 336 ... display control unit

Claims (9)

A character data detector for detecting character data from received data received by broadcast waves;
A service determination unit for determining a service type of the character data;
A display setting unit that defines at least some elements in the setting information of one service type to be the same as the elements in the setting information of another service type;
A display control unit for displaying the character indicated by the character data in a display mode indicated by the service type setting information determined by the service determining unit;
A receiving device.   The receiving apparatus according to claim 1, wherein the display setting unit determines the position of the character so that display areas do not overlap each other when characters indicated by a plurality of service type character data are displayed simultaneously.   When the display setting unit simultaneously displays characters indicated by the character data of a plurality of service types, the detectability of the characters indicated by the character data of a predetermined service type is changed to the detectability of the characters indicated by the character data of another service type. The receiving device according to claim 1 or 2, wherein the receiving device is higher than the receiving device. A separation unit for separating video data constituting a program from the received data;
When the display setting unit simultaneously displays the characters indicated by the character data of a plurality of service types, the display setting unit determines the position of the character indicated by the character data of a predetermined service type in the first display area, and the characters of other service types The receiving apparatus according to claim 2 or 3, wherein a position of a character indicated by data is determined in a second display area, and the second display area is a display area for displaying a video of a program.   The said display setting part determines the position of the said character so that a display area may not mutually overlap, when displaying the character which the character data of several languages show simultaneously. Receiver. A setting information detection unit for detecting reception setting information indicating a display mode of characters indicated by the character data;
The said display control part displays the character which the said character data shows by the display mode which the said reception setting information shows, when the instruction information which instruct | indicates use of the said reception setting information is detected from the said reception data. The receiving device according to claim 5. A broadcasting system comprising a transmitting device and a receiving device for transmitting character data by broadcast waves,
The receiving device is:
A character data detector for detecting character data from received data received by broadcast waves;
A service determination unit for determining a service type of the character data;
A display setting unit that defines at least some elements in the setting information of one service type to be the same as the elements in the setting information of another service type;
A display control unit for displaying the character indicated by the character data in a display mode indicated by the service type setting information determined by the service determining unit;
A broadcasting system comprising: A receiving method of a receiving device,
Character data detection process for detecting character data from received data received by broadcast waves,
A service determination process for determining a service type of the character data;
A display setting process for determining at least some elements in the setting information of one service type to be the same as the elements in the setting information of another service type;
A display control process for displaying the characters indicated by the character data in the display mode indicated by the service type setting information determined in the service determination process;
Receiving method. In the computer of the receiving device,
Character data detection procedure for detecting character data from received data received by broadcast waves,
A service determination procedure for determining a service type of the character data;
A display setting procedure for defining at least some elements in the setting information of one service type to be the same as the elements in the setting information of another service type;
A display control procedure for displaying the character indicated by the character data in the display mode indicated by the setting information of the service type determined in the service determination procedure;
A program for running

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