JP2015211426A - Digital television broadcast receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a "digital television broadcast receiver" which makes a subtitle non-displayed in the case where a subtitle display language is the same as an audio language when changing a program or selecting a channel in the reception of a digital television broadcast.SOLUTION: A digital television broadcast receiver (100) is configured to display a video image of a broadcast program on a digital television broadcast channel on a display section (22) and output audio from an audio output section (23). The digital television broadcast receiver includes: display control means (11) by which a subtitle indicating contents of the broadcast program in a predetermined language is displayed on the display section (22) together with a video image; language determination means (11) for determining whether a language of the audio of the broadcast program outputted from the audio output section (23) is coincident with the predetermined language of the subtitle; and subtitle non-display control means (11) by which, when the language determination means (11) determines that the language of the audio of the broadcast program is coincident with the predetermined language of the subtitle, the subtitle is made non-displayed on the display section (22) by the display control means (11).

Description

  The present invention relates to a digital television broadcast receiver that displays subtitles together with video of a digital television broadcast program.

  Compared with the conventional analog television broadcast, more information can be transmitted in the digital television broadcast. For example, audio in a plurality of languages (up to 16 languages in the digital terrestrial broadcast) can be transmitted simultaneously with the video. In addition, in digital TV broadcasting, subtitle display that displays dialogue content, comments, etc. can be transmitted in two languages (first language, second language), and subtitle screen display in the language selected with the video is possible (For example, refer to Patent Document 1).

JP 2009-171015 A

  When the subtitle text language (English, Japanese) is switched by selection, the video playback device with subtitles disclosed in the above-mentioned Patent Document 1 is the content of the subtitle text before switching due to the time difference and the subtitle text after switching. In order to prevent the difference from the content, the playback start time of each subtitle sentence is acquired in both languages, and the difference between the playback start time of the subtitle sentence in the language before switching is the smallest playback disclosure time after switching. The subtitle sentence in the language is selected and reproduced and displayed, and the consistency and accuracy of the subtitle display is improved.

  In the reception of the above digital TV broadcast, even when the language of the audio of the broadcast program is set to a desired language, when the channel is changed or when the program is changed even in the same channel, the audio of the broadcast program is operated. The sound is switched to the default setting based on the terrestrial digital television broadcasting operation regulations. On the other hand, even when there is a channel change or program change, the subtitle display language is not changed because the setting content is maintained. For this reason, when the channel is changed, or when the program changes even in the same channel, caption display unintended by the viewer may occur as follows.

  FIG. 4 shows an outline of the relationship between the audio language and the subtitle language when a program change or the like occurs during reception of a digital television broadcast program. As shown in FIG. 4, in a digital television broadcast receiver (not shown), “Night Western Theater (voice: first voice“ Japanese ”, second, Audio “English”), (Subtitles: first language “Japanese”, second language “English”) ”is received by setting the second audio (English) and subtitles to the first language (Japanese). I was watching. Later, around 22:30 during the broadcast, “World documentary (voice: first voice“ Japanese ”, second voice“ English ”)” (subtitles) started broadcasting on channel A at time 22:00. : The first language “Japanese”, the second language “English”) ”, the default language is set to the first language (Japanese), but the subtitles are maintained by the viewer. It will be displayed in the first language (Japanese).

  Therefore, at the same time when the program is changed by switching the channel, the Japanese audio and the Japanese subtitle display are viewed, and the Japanese subtitle display in the same language as the audio is displayed on the screen. Often get in the way. In order to erase or change the Japanese subtitle display, the setting contents must be manually switched, and a troublesome operation is required for the viewer while watching the broadcast.

  The present invention has been made in view of such circumstances, and an object of the present invention is to receive a digital television broadcast in which a subtitle display language is an audio language when a broadcast program is changed or a channel is selected. When the same, the digital television broadcast receiving apparatus that hides the caption display is provided.

  A digital television broadcast receiving apparatus according to the present invention is a digital television broadcast receiving apparatus that displays a video of a broadcast program of a received digital television broadcast channel on a display unit and outputs sound of the broadcast program from an audio output unit, Display control means for displaying subtitles indicating the content of the broadcast program in a predetermined language together with the video on the display unit, the audio language of the broadcast program output from the audio output unit, and the predetermined language of the subtitles Language determining means for determining whether or not the language matches, and when the language determining means determines that the language of the audio of the broadcast program matches the predetermined language of the subtitle, the display control means Subtitle non-display control means for hiding the display of the subtitles on the display unit is provided.

  According to such a configuration, when the language of the audio of the broadcast program matches the language of the subtitle, the subtitle is not displayed, so the audio of the broadcast program and the language of the subtitle become the same due to a program change or the like. Even if this is the case, it is not necessary for the viewer to manually set the subtitles to be hidden, and troublesome operations can be omitted.

  In the digital television broadcast receiving apparatus according to the present invention, the language determination means may be configured to change sound of the broadcast program after the change of the broadcast program or after the selection of the channel when the broadcast program is changed or when the channel is selected. It can be configured to determine whether or not the language matches a predetermined language of the subtitles of the broadcast program.

  According to such a configuration, at the time of changing the broadcast program or at the time of channel selection, it is determined whether the language of the audio of the broadcast program after the change or after the channel selection matches the language of the subtitles. If the language of the broadcast program's audio matches the language of the subtitles due to the change of the broadcast program or channel selection, the subtitles are hidden, so the viewer can manually hide the subtitles. It is not necessary to perform the operation, and troublesome operations can be omitted.

  In the digital television broadcast receiving apparatus according to the present invention, the language determination unit may determine the language of the audio of the broadcast program and the subtitles of the broadcast program when the audio language of the broadcast program is a default language. It can be set as the structure which determines whether a language corresponds.

  According to such a configuration, when the audio language of the broadcast program is the default language, it is determined whether or not the audio language and the subtitle language match. Returning to the language of the setting, the subtitle is hidden when it matches the language of the subtitle, so that it is not necessary for the viewer to manually set the subtitle to be hidden, and troublesome operations can be omitted.

  In the digital television broadcast receiving apparatus according to the present invention, storage means for storing predetermined language information of subtitle display displayed on the display unit by viewing the received broadcast program and language information of audio output by the audio output unit And language setting means for setting a predetermined language and audio language for subtitle display of the broadcast program received by changing the broadcast program or channel selection, the language setting means after the change or When at least one of the predetermined language information for subtitle display and the language information for audio for the broadcast program after channel selection is already stored in the storage means, the predetermined language information for subtitle display stored in the storage means and Based on at least one of the audio language information, the subtitle display may be configured to set at least one of the predetermined language and the audio language. .

  According to such a configuration, when the channel is changed repeatedly and then returned to the original channel again, at least one of the predetermined language information for subtitle display and the audio language information has already been obtained for the changed or selected broadcast program. When stored in the storage means, the language setting means determines whether the predetermined language for the subtitle display and the audio language are based on at least one of the predetermined language information for the subtitle display and the audio language information stored in the storage means. Since at least one is set, the viewer does not need to set at least one of the predetermined language and the audio language for displaying the subtitles, so that operability and convenience are improved.

  According to the digital television broadcast receiver according to the present invention, when it is determined that the language of the audio of the broadcast program matches the language of the subtitle, the display of the subtitle on the display unit is not displayed. In this case, the subtitles are hidden when the audio and subtitles of the broadcast program are in the same language, so there is no need for the viewer to manually set the subtitles to be hidden and troublesome operations during viewing can be omitted. .

It is a block diagram which shows the vehicle-mounted apparatus with which the digital television broadcast receiver and navigation apparatus which concern on embodiment of this invention are applied. It is a flowchart of the process sequence of the control part which displays the subtitle display of the broadcast program by the received digital television broadcast on a display part. It is a figure which shows an example of a television program change in case a subtitle display is not displayed by the control part of the digital television broadcast receiver which concerns on embodiment of this invention. It is a figure which shows an example when the language of the audio | voice by the conventional television program change, and the language of a caption correspond.

  Embodiments of the present invention will be described with reference to the drawings.

  An in-vehicle device to which a digital television broadcast receiver and a navigation device according to an embodiment of the present invention are applied is configured as shown in FIG. In FIG. 1, the in-vehicle device 200 includes a digital television broadcast receiving device 100 and a navigation device 110. The digital television broadcast receiving apparatus 100 includes a control unit 11 configured by a computer unit (including a CPU or MPU). The control unit 11 receives a radio wave of a digital television broadcast program broadcast on each television station (each channel) via an antenna 12, selection of each television station (each channel) to be received, sound, It is connected to an operation unit 15 for performing operations such as subtitle setting. The receiving unit 13 is connected to a separating unit 17 that separates the received radio wave into various signals related to video, subtitles, and audio constituting a broadcast program. The separating unit 17 further includes a video decoding unit 18, a subtitle decoding unit 19, and an audio decoding unit. 20 is connected. The video decoding unit 18 and the caption decoding unit 19 are respectively connected to a video synthesis unit 21 that synthesizes the decoded video and the caption, and the video synthesis unit 21 is connected to a display unit 22 that displays the synthesized video. The audio decoding unit 20 is connected to an audio output unit 23 that outputs the decoded audio. The control unit 11 is connected to the caption decoding unit 19, the audio decoding unit 20, and the video synthesis unit 21. Further, the control unit 11 is connected to a storage unit 25 that stores various information including predetermined language information of subtitle display displayed on the display unit 22 by the received broadcast program and language information of the audio output by the audio output unit 23. ing.

  The receiving unit 13 includes a tuner unit (not shown) that selects a channel to be received, and a demodulator unit (not shown) that demodulates the radio waves of the broadcast program of the received channel into video and audio digital signals. The unit 17 includes a device (DEMUX) (not shown) that separates a multiplexed signal including video, audio, and data sent from a broadcasting station into a video signal, a caption signal, and an audio signal. The video signal, subtitle signal, and audio signal separated by the separation unit 17 are encoded (compressed) signals, the video signal by the video decoding unit 18, the subtitle signal by the subtitle decoding unit 19, and the audio signal by the audio decoding unit 20. Are decoded respectively.

  Based on the input information from the operation unit 15 or the storage information stored in the storage unit 25, the control unit 11 transmits predetermined language information related to a predetermined language for displaying subtitles to the subtitle decoding unit 19, and the control unit 11 further Based on the input information from the operation unit 15 or the storage information stored in the storage unit 25, the language information related to the speech language is transmitted to the speech decoding unit 20. Thus, the video synthesis unit 21 synthesizes the video signal decoded under the control of the control unit 11 and the decoded subtitle signal of a predetermined language and displays the synthesized video signal on the display unit 22. The voice signal decoded by the voice decoding unit 20 is output from the voice output unit 23 in the language selected and set.

  The operation unit 15 includes an input unit (not shown) such as a push button or a touch panel, and performs operations such as power on / off, channel change, audio language setting and switching, and subtitle language setting and switching. Connected to the unit 11. The operation unit 15 includes a light receiving unit of an operation remote controller (not shown), and performs the above-described various operations via the remote controller. Further, as described above, the storage unit 25 stores various information such as predetermined language information of subtitle display displayed on the display unit 22 and received language information of audio output to the audio output unit for the received broadcast program. For example, it consists of a hard disk, a flash memory, or the like.

  On the other hand, the navigation device 110 has a processing unit (not shown) constituted by a computer unit (including a CPU, MPU, etc.). The processing unit includes, for example, a GPS unit and sensors (not shown above) for providing position information necessary for vehicle navigation, a storage unit (not shown) for storing map information and various information, operation buttons, etc. An operation unit (not shown) is connected. Thus, the processing unit executes processing related to vehicle navigation based on the position information from the GPS unit and sensors and the map information read from the storage unit. In the processing related to the vehicle navigation, for example, a route (route) from the vehicle position to the destination is searched and set based on the vehicle position obtained by the GPS unit and the sensors and the position of the destination, and the control unit 11 is operated. The vehicle position mark and the set route are displayed together with the navigation map on the display unit 22, and guidance (display or voice output) related to the vehicle route guidance is output from the voice output unit 23 via the control unit 11. It has become.

  As described above, the display unit 22 of the digital television broadcast receiving apparatus 100 also functions as a display unit of the navigation apparatus 110. Similarly, the audio output unit 23 of the digital television broadcast receiving device 100 also functions as a speaker of the navigation device 110. For this reason, the digital television broadcast receiving device 100 and the navigation device 110 function as the in-vehicle device 200 mutually.

  Display of captions of received broadcast programs in the above-described digital television broadcast receiver 100 in the in-vehicle device 200 will be described with reference to FIG.

  As shown in FIG. 2, when a digital television broadcast is received and viewed, the program is changed by changing the broadcast program by changing the channel, or by ending the broadcast program on the same channel and starting another broadcast program thereafter. If there is, the control unit 11 determines whether or not the video of the broadcast program after the change has a caption display (S11). For example, live broadcast news programs may not include subtitle display due to lack of creation time, etc., so even if subtitle display settings (subtitle display position, display language, etc.) are made, the broadcast after the change If the program does not include caption display, it is natural that captions are not displayed.

  When the control unit 11 determines that the changed broadcast program has subtitles (YES in S11), the control unit 11 determines whether subtitle display settings (subtitle display position, display language, and the like) are stored in the storage unit 25. (S12). This is because the caption display is based on the caption display setting, and even if the changed broadcast program includes the caption display, it is not displayed when the caption display is not set.

  When the subtitle display setting is stored in the storage unit 25 (YES in S12), the control unit 11 determines whether or not the language of the broadcast program audio after the change matches the language of the subtitle display (language It is determined whether or not the codes match (S13: language determination means). According to the terrestrial digital television broadcast operation regulations, when a broadcast program is changed, the language of the broadcast program after the change is the default language, but the subtitle display setting is changed even if the program is changed. Maintained. Therefore, the control unit 11 determines whether or not the default audio language of the changed broadcast program matches the subtitle display language in the subtitle display setting, that is, each language of the default audio language and the subtitle display language. It is determined whether or not the codes match (S13: language determination means).

  When the control unit 11 determines that the audio language (default setting) of the broadcast program after the change matches the display language of the subtitle in the subtitle display setting (the match of the language code) (YES in S13: language determination means) ), Subtitles are not included in the broadcast program video, that is, subtitles are not displayed (S14: subtitle non-display control means). For example, in the initial broadcast of a US movie (audio “Japanese, English”, subtitle “Japanese, English”), the audio was watched in English and the subtitle was in Japanese. (When the default setting of the audio is Japanese and Japanese subtitles are displayed), the control unit 11 determines that the audio of the Japanese drama is Japanese and the subtitle language is also Japanese according to the subtitle settings. It is determined that the languages are the same (language determination means), and Japanese captions are not displayed (caption non-display control means). As a result, after the broadcast program is changed, the subtitle is not displayed when the audio language of the broadcast program is the same as the subtitle display language, so it is necessary to manually perform settings such as subtitle display erasure. It is possible to avoid troublesome operations while watching a broadcast program.

  A description will be given with reference to FIG. 3 showing an example in which subtitles are not displayed when the broadcast program audio after the change (default setting language) matches the subtitle display language after the change of the broadcast program. As shown in FIG. 3, in A channel (Ach) of digital television broadcasting, “Today's News” from 21:00 to 22:00, “World Documentary (Sound: No. 1) from 22:00 to 23:00” 1 audio “Japanese”, 2nd audio “English”) (subtitles: first language “Japanese”, second language “English”) ”are broadcast. Similarly, in the B channel (Bch) of digital television broadcasting, from 21:00 to 23:00, “Night Western Theater (voice: first voice“ Japanese ”, second voice“ English ”), (subtitle: first) 1 language “Japanese” and 2nd language “English”) ”will be broadcast.

  In the in-vehicle device 200 including the digital television broadcast receiver 100 according to the present embodiment, the digital television broadcast receiver 100 initially uses the second audio (English) for the “Night Western Theater” on channel B from 21:00. , I watched subtitles by setting the first language (Japanese). Later, at about 22:30 during the broadcast, when the channel was changed (program change) to “World Documentary” being broadcast on Channel A, the sound returned to the default first language (Japanese), but subtitles Since the setting content of the viewer is maintained, subtitle display is originally performed in the first language (Japanese), but in this embodiment, the control unit 11 determines the language of the audio of the broadcast program, the language of the subtitle display, Are determined to match (language determination means), and the world documentary is output in Japanese voice, but the subtitles are not displayed (caption non-display means). By changing the program to “World Documentary”, the language of the new audio is changed to the default Japanese, and the initial setting of the first language (Japanese) is maintained for subtitles. “Documentary” will be displayed in Japanese audio and Japanese subtitles, so this subtitle display is annoying on the screen, and the viewer has set the manual display to erase the subtitle display, but according to this embodiment Since the subtitles in the same language as the audio are not displayed, the above-described manual operation for erasing the subtitle display is not required, so that the user can concentrate on viewing and the operability and convenience are improved.

  Next, referring back to FIG. If the audio language of the broadcast program after the change (default setting language) does not match the subtitle display setting language (NO in S13), the subtitles are displayed in the subtitle display setting language (S15). Therefore, subtitles in a language different from the language of the broadcast program audio are displayed.

  When the changed broadcast program does not include caption display (NO in S11), the control unit 11 displays an image without captions on the display unit 22 (S16). The changed broadcast program includes subtitle display, but when the subtitle display settings (subtitle display position, display language, etc.) are not stored in the storage unit 25 (NO in S12), the control unit 11 Then, a video without subtitles is displayed on the display unit 22 (S16).

  In this embodiment, as described above, subtitles are not displayed when the audio language that is the default setting after changing the broadcast program matches the language set by the subtitle setting. The setting and release of the function can be performed at any time. Accordingly, it is possible to set to display the caption in the same language as the default voice language by canceling the caption non-display function. Further, in this embodiment, the same determination is made as to the default language of the broadcast program after the change and the language of the subtitle setting. However, the selection of audio and the subtitle setting at the start of reception of the digital television broadcast receiver are performed. When the language is selected, the same determination may be made as to the audio of the broadcast program to be viewed and the language of the subtitle setting, and the subtitle may not be displayed when the language is the same. As described above, in the digital television broadcast receiving apparatus according to the present embodiment, subtitles are not displayed when the audio language that is the default setting after the change of the broadcast program matches the language set by the subtitle setting, The above functions can be realized by executing a predetermined program, which does not require a special device configuration and is advantageous in terms of cost.

  In addition, the control unit 11 includes predetermined language information (including a language code) of subtitle display displayed on the display unit 22 based on the broadcast program received and viewed, and language information (language code of the language) of the audio output by the audio output unit. Are stored in the storage unit 25 (storage means). Thus, for example, when the viewer repeatedly changes the program by inputting to the operation unit 15 and returns to the program that was previously viewed, the control unit 11 can transmit the audio information of the same broadcast program as the changed broadcast program. When at least one of the subtitle display and the subtitle display is already stored in the storage unit 25, at least one of the predetermined language information and the audio language information of the subtitle display of the broadcast program stored in the storage unit 25 when the program is changed Based on this, at least one of a predetermined language for subtitle display and an audio language is set (language setting means). As a result, for example, when program change is repeated during a CM broadcast and the original broadcast program is returned, it is not necessary to repeat the setting of the language of audio and the display of subtitles again. improves.

  As described above, according to the digital television broadcast receiver according to the present invention, it is determined whether or not the audio language of the broadcast program output from the audio output unit matches the predetermined language of the subtitles. When the language determining means determines that the language of the audio of the broadcast program matches the predetermined language of the subtitles, the display control means hides the display of the subtitles on the display unit. This eliminates the need for subtitle-display setting operations by using a digital display, which has the effect of eliminating troublesome operations during viewing, displays digital TV broadcast video on the display, and outputs the broadcast audio to the audio output. The present invention is useful as an in-vehicle device including a television broadcast receiver and a digital television broadcast receiver.

DESCRIPTION OF SYMBOLS 11 Control part 12 Antenna 13 Reception part 15 Operation part 17 Separation part 18 Video decoding part 19 Subtitle decoding part 20 Audio decoding part 21 Video synthesizing part 22 Display part 23 Audio output part 25 Storage part 100 Digital television broadcast receiving apparatus 110 Navigation apparatus 200 In-vehicle device

Claims (4)

A digital television broadcast receiving apparatus that displays a video of a broadcast program of a received digital television broadcast channel on a display unit and outputs sound of the broadcast program from an audio output unit,
Display control means for displaying subtitles indicating the contents of the broadcast program in a predetermined language together with the video on the display unit;
Language determination means for determining whether or not the language of the audio of the broadcast program output from the audio output unit matches a predetermined language of the subtitle;
Subtitles that cause the display control means to hide the display of the subtitles when the language determination means determines that the language of the audio of the broadcast program matches the predetermined language of the subtitles A digital television broadcast receiver having non-display control means.   The language determination means is configured to change the language of the broadcast program after changing the broadcast program or after selecting the channel, and a predetermined language for subtitles of the broadcast program when the broadcast program is changed or when the channel is selected. The digital television broadcast receiver according to claim 1, wherein it is determined whether or not matches.   The language determination means determines whether or not the language of the broadcast program audio matches the predetermined language of the subtitles of the broadcast program when the language of the audio of the broadcast program is a default language. The digital television broadcast receiver according to claim 1 or 2. Storage means for storing predetermined language information of subtitle display displayed on the display unit by viewing the received broadcast program and language information of audio output by the audio output unit;
Language setting means for setting a predetermined language and audio language of subtitle display of the broadcast program received by the change of the broadcast program or channel selection;
The language setting means is stored in the storage means when at least one of the predetermined language information of subtitle display and the language information of audio is already stored in the storage means for the broadcast program after the change or channel selection. 4. The digital device according to claim 1, wherein at least one of the predetermined language for the subtitle display and the language for the audio is set based on at least one of the predetermined language information for the subtitle display and the language information for the audio. TV broadcast receiver.

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