JP2006005418A - Apparatus, method, and program for receiving/reproducing information, and program recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information receiving/reproducing apparatus for presenting subtitles which are easily viewed and never impair the atmosphere of a broadcasted program to a viewer, by adjusting the display format of subtitle data in response to the environment at the time of viewing and the behavior of the viewer. <P>SOLUTION: Subtitle data multiplexed on a broadcast signal are decoded by a subtitle data decoder 103 and outputted to a control unit 106. The display formats (display position, character size and character color etc.) of subtitles are adjusted while the control unit 106 refers to the surrounding environmental data (brightness or noise level etc.) detected by an environmental information input unit 104, the formats are outputted to a display processing unit 107, and the formats are OSD-synthesized with video information of a broadcast program processed by a video signal processing unit 102 and displayed on a video output unit 109. Further, the display format of the subtitles can be adjusted by using the behavior (distance to the information receiving/reproducing device or a view angle etc.) as environmental data and/or meta-data of the broadcast program. Still further, the output format of the audio information and/or video information of the broadcast program can be adjusted. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information receiving / reproducing apparatus, an information receiving / reproducing method, an information receiving / reproducing program, and a program recording medium, and more particularly to receiving information such as a broadcast receiver for receiving / recording and reproducing a subtitle broadcast such as a television broadcast. A playback device, an information reception / playback method, an information reception / playback program, and a program recording medium, which is an information reception / playback device and an information reception / playback method for easily displaying caption data (closed caption data) to a viewer. The present invention relates to an information receiving / reproducing program and a program recording medium.

  Currently, subtitle data is transmitted as information created based on the language, size, and type determined in advance by the producer. Therefore, for viewers who view the transmitted subtitle data, Is difficult to see. Thus, various methods have been proposed so far to present subtitle data in a form suitable for the viewer's preference.

For example, in Japanese Patent Application Laid-Open No. 6-165073 disclosed in Japanese Patent Application Laid-Open No. Hei 6-165073, a caption function is automatically added at the time of mute in order to improve the operability by omitting the viewer's operation. A method of starting is proposed.
In addition, in Japanese Patent Laid-Open No. 9-231726 “Multi-language recording medium and its playback device” disclosed in Patent Document 2, in addition to normal subtitles, it is easier to read in the same language as this, and easier to read for children. A method has been proposed in which characters and further explanation characters can be arbitrarily selected and displayed.
In Japanese Patent Laid-Open No. 2002-142159 “Digital Broadcasting Receiver and Personal Information Storage Medium” disclosed in Patent Document 3, initial settings such as a desired screen configuration, image quality, sound quality, caption display, and peripheral device connection for each individual are disclosed. By inserting a personal information storage card in which personal information such as items, individual profiles and viewing history is stored in the receiver, the receiver selects and organizes programs for individuals specified by the personal information storage card. A method of presenting to a viewer has been proposed.
JP-A-6-165073 JP-A-9-231726 JP 2002-142159 A

  Patent Document 2 and Patent Document 3 describe a method of changing the size of subtitles, the display position, etc. in an easy-to-see manner according to the personal preference of each viewer. However, the readability of subtitles is not only personal preference, but also the viewing environment surrounding the installation location where information receiving / reproducing devices such as broadcast receivers are installed, such as the brightness and noise of the room during viewing Viewing environment, viewer attitude (sitting and watching, standing and watching, lying down, etc.) and position (distance from information receiving / playback device, viewing angle, etc.) Or it changes also by viewing behaviors, such as a viewer's movement (watching still, watching while moving). On the other hand, the technique described in Patent Document 1 automatically displays subtitles only when the viewer performs a mute operation, and it can be said that the subtitles are easily read by the viewer. Absent.

  The present invention has been made in view of such circumstances, and in an information reception / reproduction device such as a broadcast receiver that receives and reproduces caption data (closed caption data), the viewing environment (brightness and noise of the room to be viewed) Etc.) and / or the viewer's viewing behavior (viewer's attitude, position, movement, etc. while viewing) and / or metadata indicating program information is automatically adjusted to make caption data easy to see. The purpose is to present.

  The first technical means is an information receiving / reproducing apparatus for receiving and reproducing a broadcast signal, wherein the subtitle data decoding means for decoding the subtitle data multiplexed on the broadcast signal and the information receiving / reproducing apparatus are installed. And an environment data acquisition unit that acquires environment data indicating viewing environment conditions around the installed location, and is decoded according to the environment data acquired by the environment data acquisition unit Furthermore, the display format of the caption data is adjusted and displayed.

  A second technical means is the information receiving / reproducing apparatus according to the first technical means, wherein the information receiving / reproducing apparatus is installed as the environmental data acquired by the environmental data acquiring means. And / or environmental noise data indicating the noise level of the installation location where the information receiving / reproducing apparatus is installed.

  According to a third technical means, in the information receiving / reproducing apparatus according to the second technical means, as the environmental brightness data, the illuminance at the installation location where the information receiving / reproducing apparatus is installed, the information receiving / reproducing One or more pieces of information regarding the luminance of the screen of the playback device are included.

  A fourth technical means is the information receiving / reproducing apparatus according to the second or third technical means, wherein the environmental noise data exists inside and outside the installation place where the information receiving / reproducing apparatus is installed. It includes any one or more of information on noise generated by a noise source and noise caused by speech of a person including a viewer.

  According to a fifth technical means, in the information receiving / reproducing apparatus according to any one of the first to fourth technical means, viewing that indicates a viewer's behavior as the environmental data acquired by the environmental data acquiring means. Any one of the viewing behavior data, the environmental brightness data indicating the brightness of the installation location where the information receiving / reproducing apparatus is set, and the environmental noise data indicating the noise level of the installation location. According to one or more data, the display format of the decoded subtitle data is adjusted and displayed.

  Sixth technical means is the information receiving / reproducing apparatus according to the fifth technical means, wherein the viewing behavior data is any one of information relating to a viewer's viewing position, viewer's viewing attitude, and viewer's movement. One or more are included.

  The seventh technical means is the information receiving / reproducing apparatus according to the sixth technical means, wherein the viewer is viewing the viewing position as a distance from the information receiving / reproducing apparatus being viewed by the viewer. Any one or more of viewing angles with respect to the information receiving / reproducing apparatus is included.

  According to an eighth technical means, in the information receiving / reproducing apparatus according to the sixth technical means, the viewing attitude of the viewer is whether the viewer is sitting or watching while standing. Or information indicating whether the user is lying or watching.

  Ninth technical means, in the information receiving / reproducing apparatus described in the sixth technical means, as the movement of the viewer, information indicating whether the viewer is viewing still or moving. It is characterized by including.

  In a tenth technical means, in the information receiving / reproducing apparatus according to any one of the first to ninth technical means, as a display format of the caption data to be adjusted, a display position on a screen, a character type, One or more of character size, character line thickness, character color, character shadow, character background color, character contrast, character brightness, and character sharpness are included.

  In the information receiving / reproducing apparatus according to any one of the first to tenth technical means, the eleventh technical means adjusts the display format of the caption data and displays the adjusted display format. An inquiry message as to whether or not to display the caption data.

  A twelfth technical means is the information receiving / reproducing apparatus according to any one of the first to eleventh technical means, further comprising metadata acquisition means for acquiring metadata indicating program information of the broadcast program, The display format of the decoded caption data is adjusted and displayed according to the metadata and / or the environment data acquired by the metadata acquisition means.

  A thirteenth technical means is the information receiving / reproducing apparatus according to any one of the first to eleventh technical means, wherein the subtitle data is displayed according to the environmental data acquired by the environmental data acquiring means. The format and / or the output format of the audio information of the broadcast program and / or the display format of the video information of the broadcast program are adjusted and displayed.

  Fourteenth technical means is the information receiving / reproducing apparatus according to any one of the thirteenth technical means, further comprising metadata acquisition means for acquiring metadata indicating program information of a broadcast program, wherein the environmental data According to the environmental data acquired by the acquisition means and / or the metadata acquired by the metadata acquisition means, the display format of the caption data and / or the output format of audio information of the broadcast program and The video information of the broadcast program is adjusted and displayed.

  According to a fifteenth technical means, in the information receiving / reproducing apparatus according to the thirteenth or fourteenth technical means, an output format of the audio information of the broadcast program to be adjusted is a volume level, a sound quality, a frequency spectrum of the audio information. Any one or more of the above are included.

  The sixteenth technical means is the information receiving / reproducing apparatus according to the thirteenth or fourteenth technical means, wherein the video information display position, display size, color tone are displayed as the video information display format of the broadcast program to be adjusted. , And any one or more of resolution and luminance.

  In the information receiving / reproducing apparatus according to any one of the thirteenth to sixteenth technical means, the seventeenth technical means adjusts the display format of the caption data and displays the adjusted display format. Whether or not to display the caption data and / or whether to output the audio information of the broadcast program using the adjusted output format and / or broadcast using the adjusted display format An inquiry message as to whether or not to display the video information of the program is output.

  According to an eighteenth technical means, in an information receiving / reproducing apparatus for receiving and reproducing a broadcast signal, subtitle data decoding means for decoding subtitle data multiplexed on the broadcast signal, and metadata indicating program information of the broadcast program In an information receiving / reproducing apparatus comprising: a metadata acquisition unit that acquires a display format, the display format of the decoded caption data is adjusted and displayed according to the metadata acquired by the metadata acquisition unit It is characterized by that.

  A nineteenth technical means is the information receiving / reproducing apparatus according to the eighteenth technical means, wherein the metadata acquired by the metadata acquiring means includes a broadcast program title, a broadcast program identification ID, a broadcast program genre, and the like. , Broadcast program contents, broadcast program organization information, broadcast program production date, broadcast program broadcast time, broadcast program producer, broadcast program director, broadcast program performer, and broadcast program data related to broadcast program rights Any one or more of them are included.

  According to a twentieth technical means, in the information receiving / reproducing apparatus according to the eighteenth or nineteenth technical means, the display format of the subtitle data to be adjusted is a display position on a screen, a character type, a character size. And character line thickness, character color shade, character shadow, character background color, character contrast, character brightness, and character sharpness.

  In the information receiving / reproducing apparatus according to any one of the eighteenth to twentieth technical means, the twenty-first technical means adjusts the display format of the caption data and displays the adjusted display format. An inquiry message as to whether or not to display the caption data.

  Twenty-second technical means is the information receiving / reproducing apparatus according to any one of the eighteenth to twenty-first technical means, wherein the subtitle data is displayed according to the metadata acquired by the metadata acquiring means. In addition to the format, the output format of the audio information of the broadcast program and / or the display format of the video information of the broadcast program are adjusted and displayed.

  According to a twenty-third technical means, in the information receiving / reproducing apparatus according to the twenty-second technical means, the output format of the audio information of the broadcast program to be adjusted is any one of a volume level, sound quality, and frequency spectrum of audio information. One or more are included.

  According to a twenty-fourth technical means, in the information receiving / reproducing apparatus according to the twenty-second technical means, a display position of video information, a display size, a hue, a resolution, Any one or more of luminances are included.

  In a twenty-fifth technical means, in the information receiving / reproducing apparatus according to any one of the twenty-second to twenty-fourth technical means, the adjusted display format is displayed when the display format of the caption data is adjusted and displayed. Whether or not to display the caption data and / or whether to output the audio information of the broadcast program using the adjusted output format and / or broadcast using the adjusted display format An inquiry message as to whether or not to display the video information of the program is output.

  The twenty-sixth technical means is a subtitle data decoding step for decoding subtitle data multiplexed on a broadcast signal, and a viewing environment around an installation place where an information receiving / reproducing apparatus for receiving and reproducing the broadcast signal is installed. An environmental data acquisition step for acquiring environmental data indicating a situation and / or a metadata acquisition step for acquiring metadata indicating program information of a broadcast program, the environmental data acquired by the environmental data acquisition step, and The information receiving / reproducing method is characterized in that a display format of the decoded caption data is adjusted and displayed according to the metadata acquired in the metadata acquiring step.

  The twenty-seventh technical means is a subtitle data decoding step for decoding subtitle data multiplexed on a broadcast signal, and a viewing environment around an installation place where an information receiving / reproducing apparatus for receiving and reproducing the broadcast signal is installed. An environmental data acquisition step for acquiring environmental data indicating a situation and / or a metadata acquisition step for acquiring metadata indicating program information of a broadcast program, the environmental data acquired by the environmental data acquisition step, and An information receiving / reproducing program for adjusting and displaying the display format of the decoded subtitle data according to the metadata acquired by the metadata acquiring step.

  A twenty-eighth technical means is a subtitle data decoding step for decoding subtitle data multiplexed on a broadcast signal, and a viewing environment around an installation place where an information receiving / reproducing apparatus for receiving and reproducing the broadcast signal is installed. An environmental data acquisition step for acquiring environmental data indicating a situation and / or a metadata acquisition step for acquiring metadata indicating program information of a broadcast program, the environmental data acquired by the environmental data acquisition step, and Computer-readable program recording medium storing an information receiving / reproducing program for adjusting and displaying a display format of the decoded subtitle data according to the metadata acquired by the metadata acquiring step It is characterized by.

According to the present invention constituted by each technical means as described above, the following effects can be obtained.
(1) Subtitle display format (display position on screen, depending on the surrounding environment (brightness (illuminance), noise, etc.) where the information receiving / reproducing device is installed) Display format including one or more of character type, character size, character line thickness, character color, character shadow, character background color, character contrast, character brightness, and character sharpness ) Can be automatically adjusted, and subtitles that are easy for the viewer to read can be presented.

(2) Also, the viewer's position (distance between viewer and information receiving / reproducing device, viewing angle, etc.), viewer's movement (such as viewing still), or viewer's viewing posture ( The subtitle display format can be automatically adjusted according to the behavior of the viewer (for example, sitting and watching), and the subtitle can be presented more easily for the viewer.

(3) Depending on the surrounding environment and / or the behavior of the viewer at the time of viewing by the viewer, not only the subtitle display format but also the video information display format of the content (broadcast program) and / or The output format of audio information can be automatically adjusted, so that not only subtitles that are easy to read for viewers can be presented, but also content (broadcast programs) that are easy to view can be presented, and more convenient information reception A playback device can be provided.

(4) Depending on the metadata including information such as content (broadcast program) content and genre, not only the subtitle display format but also the video information display format (video information) of the content (broadcast program) as necessary. Display position, display size, hue, resolution, display format including any one or more of brightness, and / or audio information output format (output including any one or more of volume level, sound quality, frequency spectrum) Format) can be automatically adjusted, can display subtitles that are easy to read and do not impair the atmosphere of the content (broadcast program), and are easy to view and can promote the atmosphere of the content (broadcast program) And / or audio information can be presented.

  The present invention relates to an information receiving / reproducing apparatus such as a broadcast receiver that is easy to read caption data and does not impair the atmosphere of the content (broadcast program), an information receiving / reproducing method applied to the information receiving / reproducing apparatus, The present invention relates to an information reception / reproduction program that operates on the information reception / reproduction device, and a program recording medium that stores the information reception / reproduction program. In the description of the following embodiments, mainly, An information receiving / reproducing apparatus will be described. However, it is apparent that the information receiving / reproducing method, the information receiving / reproducing program, and the program recording medium according to the present invention can be easily understood from the following description.

(Basic configuration of information receiving / reproducing device)
FIG. 1 is a block diagram showing an example of a basic configuration of an information receiving / reproducing apparatus according to the present invention, for explaining a first embodiment for solving the above-mentioned problems.

  In the block configuration diagram of FIG. 1, the information receiving / reproducing apparatus 10 includes an audio signal processing unit 101, a video signal processing unit 102, a caption data decoder 103, an environment information input unit 104, an environment data processing unit 105, a control unit 106, a display. A processing unit 107, an audio output unit 108, and a video output unit 109 are provided. The audio signal is output from the audio output unit 108 such as a speaker, with the audio signal processing unit 101 controlling the audio output level and the like. The video signal is processed by the video signal processing unit 102, the display format is controlled, the video signal is separated and output as a television screen display signal, and is output from the video output unit 109 via the display processing unit 107.

  The caption data decoder 103 extracts and decodes caption data (closed caption data) multiplexed in the broadcast signal. The environment information input unit 104 is a means for detecting, as environment data, a viewing environment situation of the installation place where the information receiving / reproducing apparatus 10 is installed, that is, an environment (such as brightness and noise) around the viewer. And microphones, sensors, etc. The environment data processing unit 105 recognizes the environment data input from the environment information input unit 104 and outputs it to the control unit 106. The control unit 106 adjusts the caption data extracted from the broadcast signal by the caption data decoder 103 and decoded based on the environment data input from the environment data processing unit 105, and outputs it to the display processing unit 107.

(Specific examples of hardware)
FIG. 2 is a block diagram showing an example of a specific system configuration of the information receiving / reproducing apparatus 10 according to the present invention shown in FIG. 1, and each circuit block in FIG. 1 is configured as each hardware logic. Instead, the case where it is configured by software logic using an information reception / reproduction processing program is illustrated.

  In the information receiving / reproducing apparatus 10 of FIG. 2, the CPU 1 controls the entire system of the information receiving / reproducing apparatus 10 according to a built-in system program, and also executes the information receiving / reproducing processing program and receives it by the receiving unit 9. The processed information is processed, and a processing result is created on the work memory 2. The input unit 3 corresponds to the environment information input unit 104 shown in FIG. 1, and the environment information signal input from the input unit 3 is processed by the CPU 1 by a processing program corresponding to the environment data processing unit 105 shown in FIG. And stored in the database 4 as environmental data.

  The display unit 5 is a television screen in a state in which a display method (screen display format, display resolution, brightness, etc.) is controlled based on an instruction such as a remote control operation from a viewer or environmental data stored in the database 4. A video signal for display is output, and various information stored in the database 4 and a calculation processing result of the CPU 1 are displayed. The audio output unit 6 outputs an audio signal in a state where an output method (output volume level, sound quality, etc.) is controlled based on an instruction such as a remote control operation from a viewer or environmental data stored in the database 4. . The external storage drive 7 is a reading device for an external storage (recording medium) 8 in which an information reception / reproduction processing program executed by the CPU 1 is recorded.

  The receiving unit 9 corresponds to the audio signal processing unit 101, the video signal processing unit 102, and the caption data decoder 103 shown in FIG. 1, and the received audio signal is output to the audio output unit 6 after adjusting the output method. The received video signal is separated into video information for displaying the TV screen and subtitle data, and the signal for displaying the TV screen is adjusted by the display method and the video output unit via the display processing unit of the display unit 5. The subtitle data is processed by the CPU 1 in accordance with the operation of the information reception / reproduction processing program and output to the display processing unit of the display unit 5.

  As described above, the correspondence between the basic configuration shown in FIG. 1 and the specific circuit block shown in FIG. 2 will be further described as follows. The control unit 106 shown in FIG. 1 is a system program stored in the CPU 1, work memory 2, and built-in ROM in FIG. 2 and information reception / reproduction processing program stored in the work memory 2 and / or ROM. The audio signal processing unit 101, the video signal processing unit 102, and the caption data decoder 103 shown in FIG. 1 are used to control the receiving unit 9 in FIG. It corresponds to a part of the information reception / reproduction processing program stored in the work memory 2 and / or the ROM, and the information reception / reproduction processing program is configured to operate on the CPU 1 under the control of the system program.

  The environment information input unit 104 in FIG. 1 is an information reception / reproduction processing program stored in the work memory 2 and / or ROM in order to control the operation of the input unit 3 in FIG. The environment data processing unit 105 in FIG. 1 corresponds to a part of the information reception / reproduction processing program stored in the work memory 2 and / or the ROM, and the input in FIG. In order to process the environmental data input from the unit 3, the CPU 1 operates according to the control of the system program.

  Further, the display processing unit 107 in FIG. 1 is an information reception / reproduction processing program stored in the work memory 2 and / or ROM in order to control the operation of the display unit 5 in FIG. The information reception / reproduction processing program corresponds to a part, operates on the CPU 1 according to the control of the system program, and displays the processed caption data on the screen information on the TV screen for OSD (On Screen Display) display. The operation of the display unit 5 is controlled.

  Also, the video output unit 108 in FIG. 1 is an information reception / reproduction processing program stored in the work memory 2 and / or ROM in order to control the operation of the display unit 5 and the display unit 5 in FIG. The information reception / playback processing program corresponds to a part, operates on the CPU 1 according to the control of the system program, and appropriately displays the video information for displaying the TV screen and the subtitle data received by the receiving unit 9 on the screen. The operation of the display unit 5 is controlled. Also, the audio output unit 108 in FIG. 1 performs information reception / reproduction processing stored in the work memory 2 and / or ROM in order to control the operation of the audio output unit 6 in FIG. 2 and the audio output unit 6. The information reception / reproduction processing program corresponds to a part of the program, operates on the CPU 1 according to the control of the system program, and operates the audio output unit 6 so as to appropriately output the audio information received by the receiving unit 9. Control.

In the following, each circuit block of the information receiving / reproducing apparatus 10 shown in FIG. 2 will be described.
As described above, the CPU 1 is a control unit that controls the information receiving / reproducing apparatus 10 as a whole. In accordance with the operation of the built-in system program, the CPU 1 performs various calculations using the work memory 2 that stores data used for calculations. In addition to performing processing, the information reception / reproduction processing program is executed to process the information received by the receiving unit 8 and create a processing result on the work memory 2.

  The working memory 2 is a so-called working memory that temporarily stores data relating to character display, data used for calculation, calculation results, and the like, and includes a program executed by the CPU 1 and data and programs used in the program. Stores processing results and the like. Of the programs, some programs that are unlikely to be changed may be stored in a ROM (not shown) as in the case of the system programs.

  In addition, a part of the RAM used as the working memory 2 is backed up by power, or is configured by a nonvolatile memory such as an EEPROM (Electrically Erasable Programmable ROM) or a flash memory, and the power is turned off. Even if it exists, the stored contents are held as they are. The nonvolatile storage area stores various setting data, processing data, programs, and the like that need to retain the stored contents even when the power is turned off.

  The input unit 3 receives viewing environment information (brightness, noise, time, etc.) around the installation location where the information receiving / reproducing apparatus 10 is installed, and the attitude of the viewer who views the information receiving / reproducing apparatus 10 ( Sitting, watching, standing, watching lying, etc.), movement (watching still, watching while moving, etc.), position (TV receiver) This is a device for inputting a distance from the information receiving / reproducing device 10, a viewing angle, and the like, and includes a camera, a microphone, a brightness sensor, a position sensor, and the like.

The display unit 5 is, for example, a liquid crystal display device (LCD) having a dot matrix configuration, and the television screen display video information received by the receiving unit 9, various information stored in the database 4, and arithmetic processing in the CPU 1. Display the results.
The audio output unit 6 is, for example, a speaker or an earphone, and outputs an audio signal received by the receiving unit 9.

  The external storage drive 7 is a reading device for an external storage (recording medium) 8 that stores various types of information including an information reception / reproduction processing program. The external storage (recording medium) 8 includes, for example, various memory cards and FDs. (Flexible Disk), CD-ROM (Compact Disk-ROM), and other recording media. Here, the external storage (recording medium) 8 stores various information including an information reception / reproduction processing program for realizing various information reception / reproduction functions as will be described later. By attaching to the drive 7, various information stored in the external storage (recording medium) 8 is read and stored in the work memory 2 or the like.

Example 1
Next, Embodiment 1 relating to the operation of the information receiving / reproducing apparatus 10 according to the present invention will be described with reference to the basic configuration of FIG.
As described above, caption data (closed caption data) is currently fixedly displayed according to the language, size, and type determined in advance by the producer, and for viewers who view the caption data. It ’s not always easy to read.

  For example, if the surroundings are dark, the human eye will widen the pupil to take in more light. That is, the pupil opens larger when the room is dark or at night. However, the brightness of the display screen that displays subtitle data is usually always the same, so the viewer's eyes adjust the pupil according to the surrounding brightness, while always maintaining a constant brightness. It is known that the brightness of both of them must be focused on the display screen, and the difference in the brightness of both places a burden on the viewer's eyes.

Therefore, depending on the viewing environment such as the brightness of the room (illuminance) and noise during viewing by the viewer, the subtitle data display format (display position on the screen, character type, size, line thickness, To provide an information reception / playback device that automatically adjusts the subtitles (e.g., shade / text shadows, shadow color, character background color, contrast / brightness / sharpness). It is important to reduce the burden on the user.
For example, when the brightness of the room is dark, it may be possible to make the text easier to read by reducing the brightness (brightness) of the subtitle characters on the screen or increasing the size of the characters.

  In the first embodiment, as a viewing environment situation, one of the display formats of subtitle data presented on the display screen based on room brightness (illuminance) obtained from a brightness sensor or the like, that is, environment brightness data. A case where the character size is automatically adjusted will be described as an example. Based on the environmental brightness data obtained as the viewing environment status, for example, when the brightness of the room is dark, the subtitle data presented on the display screen is easy to read by increasing the character size of the subtitle data. Is expected to be. Conversely, when the room is bright, the visibility of the caption data presented on the display screen can be maintained by setting the character size of the caption data to a standard size.

(Basic operation of information receiving / reproducing device)
The operation of the information receiving / reproducing apparatus configured as described above will be described below. First, the basic operation of the information receiving / reproducing apparatus 10 in FIG. 1 will be described.

(Audio signal processing unit 101)
The input audio signal is set in the audio signal processing unit 101 according to setting values such as an audio output level and sound quality input from a viewer using an input means such as a remote controller (not shown). The audio output level and sound quality are controlled so as to match the value, and output from the audio output unit 108. Note that the set value is not limited to be specified by the viewer using a remote controller or the like, but is automatically set to an appropriate value calculated by the control unit 106 according to the viewing environment state detected by the environment information input unit 104. You may make it set.

(Video signal processing unit 102)
Among the input video signals, the video information for TV screen display includes, for example, video according to the setting value relating to the display format of the video signal input from the viewer using input means such as a remote controller (not shown). The signal processing unit 102 processes the display format so as to match the set value and outputs it as a television screen display signal, and outputs it from the video output unit 109 via the display processing unit 107. The set value is not limited to be specified by the viewer using a remote controller or the like, but is automatically set to an appropriate value calculated by the control unit 106 according to the viewing environment state detected by the environment information input unit 104. You may make it do.

(Subtitle data decoder 103)
Subtitle data (closed caption data) multiplexed on the incoming broadcast signal includes, for example, an extraction instruction and decoding format of subtitle data input from a viewer using input means such as a remote controller (not shown). The subtitle data decoder 103 extracts subtitle data (closed caption data) so as to match the set value, performs decoding processing, and outputs the subtitle data to the control unit 106. The set value is not limited to be specified by the viewer using a remote controller or the like, but is automatically set to an appropriate value calculated by the control unit 106 according to the viewing environment state detected by the environment information input unit 104. You may make it do.

(Environmental information input unit 104)
As described above, the environment information input unit 104 detects the surrounding viewing environment (for example, brightness) when viewing the information receiving / reproducing apparatus 10, and the detected surrounding viewing environment (brightness) is the environment brightness. This is one of the environmental data acquisition means for outputting the data as environmental data to the environmental data processing unit 105, and consists of a camera, a sensor, and the like.
The camera or sensor may be fixedly attached to the information receiving / reproducing apparatus 10 or attached to the ceiling or wall of the room where the information receiving / reproducing apparatus 10 is installed. Also good. If the camera or sensor is attached to a remote control operated by the viewer, the viewing environment around the viewer can be detected more correctly.

(Environmental data processing unit 105)
The environmental data processing unit 105 recognizes environmental brightness data input from the environmental information input unit 104, converts the data into data that can be processed by the control unit 106, and outputs the data to the control unit 106.

(Control unit 106)
The control unit 106 adjusts, for example, the size of display characters for the subtitle data extracted from the broadcast signal and decoded by the subtitle data decoder 103 based on the environmental brightness data input from the environmental data processing unit 105. Then, the signal is output to the display processing unit 107 and is subjected to OSD synthesis with the TV screen display signal from the video signal processing unit 102.

(Display processing unit 107)
The display processing unit 107 superimposes the caption data whose display character size has been adjusted by the control unit 106 in synchronization with the video data input from the video signal processing unit 102, that is, a television screen display signal, This is combined as an OSD display and output to the video output unit 109.

(Audio output unit 108)
The audio signal whose audio output level is controlled by the audio signal processing unit 101 is output to an output device such as a speaker.

(Video output unit 109)
The display processing unit 107 synchronizes with the video data from the video signal processing unit 102, that is, the TV screen display signal, and displays the video as a result of the OSD synthesis of the caption data processed by the control unit 106. Output to the output device.

(Operation flowchart of control unit 106)
Here, operation | movement of the control part 106 in the present Example 1 is further demonstrated using the flowchart of FIG. FIG. 3 is a flowchart for explaining an example of the operation of the information receiving / reproducing apparatus according to the present invention, and shows an example of the operation of the control unit 106 of the information receiving / reproducing apparatus 10 shown in FIG.

  When the information receiving / reproducing apparatus 10 is activated, the control unit 106 processes the received audio signal and video signal by the audio signal processing unit 101 and the video signal processing unit 102, respectively. Audio information and video information are output to the audio output unit 108 and the video output unit 109 via the display processing unit 107, respectively, and presented to the viewer (step S101).

  At this time, the subtitle data multiplexed and received in the video signal and decoded by the subtitle data decoder 103 remains in the received state, that is, the state created by the producer or the like maintains the OSD. Processed as data to be displayed. The processed subtitle data is output to the display processing unit 107, is OSD-combined with the video information from the video signal processing unit 102, and is output to the video output unit 109. That is, the initial setting state of the information receiving / reproducing apparatus 10 is set so that the received audio signal, video signal, and caption data are output in the same output format.

  Next, the control unit 106 sets the ambient brightness data output from the environment data processing unit 105 together with time information, that is, in the case of the first embodiment, as shown in Table 1, the brightness of the room (for example, , Data relating to illuminance as shown in Table 1 is received together with time information (step S102). Table 1 exemplifies the brightness of the room (place) where the information receiving / reproducing apparatus 10 is installed at every 5 minute intervals, from 16:30 on March 11 to 16:40. In any case, the illuminance detected by the sensor of the environment information input unit 104 is a slightly dark brightness of 24 lux.

  The control unit 106 determines whether or not the display format (for example, character size) of the caption data should be adjusted based on the received environmental brightness data, that is, the brightness of the room (step S103).

  The determination as to whether or not adjustment of the display format (for example, character size) of the caption data is required is performed by, for example, setting the threshold (for example, 25 lux) to the brightness (illuminance) of the room in which the information receiving / reproducing apparatus 10 is installed. Or 300 lux), and the display format (for example, the character size) of the caption data may be adjusted when the brightness exceeds the threshold (or when the brightness is less than the threshold). The display format (for example, the character size) of the caption data is continuously adjusted according to the degree of increase or decrease of the brightness (illuminance) of the room where the information receiving / reproducing apparatus 10 is installed. Any determination method may be used as long as an appropriate adjustment method can be applied so that the viewer can easily read the display format.

  Here, Table 2 shows the brightness (illuminance) of the room in which the information receiving / reproducing apparatus 10 is installed as a threshold for determining whether or not to adjust the display format (for example, character size) of the caption data. As described above, an example will be described in which the subtitle display format (character size) is adjusted according to each step. In other words, Table 2 shows an example in which the character size of caption data is switched in three stages using two threshold values of 25 lux and 300 lux, and the room in which the information receiving / reproducing apparatus 10 is installed is shown. If the brightness (illuminance) is less than 25 lux, the subtitle data character size is 36 points, which is larger, and if it is 25 lux or more and less than 300 lux, it is smaller in the standard 24 points, 300 lux or more bright environment. This shows a case where the size is set to 20 points and displayed.

  Based on Table 2, the control unit 106 determines whether or not the display format (for example, character size) of the caption data should be adjusted, and the brightness of the room is the first as shown in Table 1 above. If it is slightly darker than 24 lux which is less than 25 lux which is the threshold value, it is determined that adjustment is necessary (YES in step S103), and the character size which is one of the display formats of the caption data is as shown in Table 2. Subtitle data adjusted to the larger 36 points and adjusted in display format is output to the display processing unit 107 together with time information (step S104). On the other hand, if it is determined that no adjustment is necessary (NO in step S103), the control unit 106 maintains the display format of the received and decoded subtitle data as it is, and sends it to the display processing unit 107 together with the time information. Output.

  The display processing unit 107 synchronizes the caption data sent from the control unit 106 and the video data sent from the video signal processing unit 102 based on time information, and displays the caption data as an OSD display. After being superimposed on the data (step S105), the data is output to the video output unit 109 and displayed on the screen (step S106). Thereafter, the process returns to step S102 to return to the operation for acquiring the ambient brightness data at the next time. The processing as described above is repeated until the information receiving / reproducing apparatus 10 is turned off and terminated.

As described above, the display format of the caption data, for example, the character size is automatically adjusted according to the brightness (illuminance) of the room in which the information receiving / reproducing apparatus 10 is installed, so that it is easy for the viewer to read. Subtitles can be presented.
Of course, the numerical data such as the brightness of the room and the character size given here are merely examples, and the present invention is not limited thereto.

  In the first embodiment described above, an example in which easy-to-read subtitles are displayed by adjusting the character size among the display formats of the subtitle data is shown, but the present invention is not limited only to the adjustment of the character size. For example, the subtitle display position on the screen (upper or lower screen) may be adjusted, the character type (gothic or extra thick Gothic font) may be adjusted, or You may make it adjust the thickness (bold, thin character, etc.) of the line of a character. Furthermore, the color of the character (not only black but also red, blue, etc.), the shadow of the character, the background color of the character, the contrast of the character, the brightness, the sharpness, etc. may be adjusted.

  Furthermore, the adjustment may be made by any combination of the plurality of display formats, and any adjustment method may be used as long as it is a subtitle display format that allows easy display for the viewer. In addition to automatically adjusting, it asks the viewer whether the subtitles are easy to read, and waits for the viewer's response to adjust the display format. Also good.

  In the first embodiment described above, as an example of the environmental brightness data received from the environmental data processing unit 105, the environmental brightness related to the brightness (illuminance) of the room (location) where the information receiving / reproducing apparatus 10 is installed. Although described using data, the present invention is not limited to environmental brightness data related to room brightness (illuminance). For example, the room in which the information receiving / reproducing apparatus 10 is installed and the information receiving / Environment brightness data regarding the presence or absence of external light incident or reflection on the playback device 10 and the brightness (illuminance) on the screen of the information reception / playback device 10 or the brightness on the display screen of the information reception / playback device 10 is used. Environment brightness data such as brightness (illuminance) and presence / absence of reflection may be used. Furthermore, as will be described later, environmental noise data relating to the noise level inside and outside the room (place) in which the information receiving / reproducing apparatus 10 is installed and the loudness of human speech may be used. Furthermore, any combination of the plurality of environment data may be used. Any data that can be automatically acquired by a sensor, a camera, a microphone, or the like is required to make subtitles easier to read. Environmental data may be used.

(Example 2)
In the first embodiment, the environment brightness data input from the environment information input unit 104 and processed by the environment data processing unit 105 (that is, the viewing environment surrounding the installation location where the information receiving / reproducing apparatus 10 is installed, for example, The case where the control unit 106 adjusts the display format of the caption data based on the brightness of the room has been described as an example.
In the second embodiment, unlike the adjustment example of the caption data based on the environment data, that is, the environment brightness data in the first embodiment, the caption based on the viewer action data such as the attitude and / or movement and / or position of the viewer. An example of data adjustment will be described. That is, not the environmental data indicating the viewing environment such as the brightness around the installation location where the information receiving / reproducing device is installed, but the behavior data of the viewer who views the information receiving / reproducing device, that is, the viewing behavior data, A case will be described in which the display format of caption data is acquired as one of the environment data indicating the viewing environment and the display format of the caption data is adjusted based on the viewing behavior data so that the caption is easily viewable.

  Here, the attitude of the viewer means any state in which the viewer who is viewing the information receiving / reproducing device is sitting, watching, standing up, lying down, etc. In addition, the movement of the viewer means that the viewer who is watching the information receiving / reproducing device is still watching or moving around while walking around It includes information indicating the state of viewing, etc., and the position of the viewer is the positional relationship with the information receiving / reproducing device being viewed, and information reception It includes information indicating the distance to the playback device, the viewing angle of the information reception / playback device, and the like. In any case, it is possible to automatically grasp the viewer's posture, movement and position, for example, by photographing with a camera or detecting with a position sensor.

  Note that the display format of the caption data to be adjusted is the same as in the first embodiment, the caption display position, character type, character size, character line thickness, character color, character color, Any one or a combination of shadows, character background colors, character contrasts, brightness, sharpness, etc. may be used, and any display format may be used as long as it makes the subtitles easier to see.

  In the following, as the viewing behavior data of the viewer, the subtitle data display format (for example, the distance between the viewer and the information receiving / reproducing device) (eg, the distance between the viewer and the information receiving / reproducing device) is obtained from the position sensor or the like. A case where the character size is adjusted will be described as an example. For example, when it is detected that the viewing position is far away from the information receiving / playback device, the viewer adjusts the display format to automatically increase the character size of the caption data, so that the viewer can select the caption. It can be expected to be easy to read.

  That is, as shown in FIG. 4, the information receiving / reproducing apparatus applied to the second embodiment is a viewing / listening device instead of the environment information input unit 104, environment data processing unit 105, and control unit 106 shown in FIG. A behavior information input unit 204, a behavior data processing unit 205, and a control unit 206 that detect the viewing behavior of a person are configured. FIG. 4 is a block diagram illustrating another example of the basic configuration of the information receiving / reproducing apparatus according to the present invention. In the information receiving / reproducing apparatus 20 of FIG. It is processed by the information input unit 204 and the behavior data processing unit 205, and is output to the control unit 206. In the control unit 206, subtitle data is output based on the viewer's viewing behavior data received from the behavior data processing unit 205. It is possible to adjust the display format.

(Basic operation of information receiving / reproducing device)
The basic operation of the information receiving / reproducing apparatus 20 configured as shown in FIG. 4 will be described below with reference to circuit blocks different from those of the information receiving / reproducing apparatus 10 shown in FIG.

(Behavior information input unit 204)
As described above, the behavior information input unit 204 displays the viewing behavior information of the viewer who views the information receiving / reproducing device 20, such as the viewing position (that is, the distance to the information receiving / reproducing device 20) in the viewing environment of the viewer. It is one of the environmental data acquisition means for detecting as one of the environmental data shown and outputting the detected viewer behavior information, for example, the viewing position to the behavior data processing unit 205, and is composed of a camera, a sensor and the like.
The camera or sensor for detecting the viewing behavior information of the viewer may be fixedly attached to the information receiving / reproducing apparatus 20 or in the room where the information receiving / reproducing apparatus 20 is installed. You may make it attach to a ceiling or a wall. In addition, as a technique for detecting the movement of the viewer with the camera, for example, a method of calculating the presence / absence of movement and the moving speed by calculating the time difference of the video imaged using the tracking camera and determining the amount of movement Etc. are known.

(Behavior data processing unit 205)
The behavior data processing unit 205 recognizes the viewer's viewing behavior information input from the behavior information input unit 204, for example, viewing position data, converts the data into data that can be processed by the control unit 206, and sends the data to the control unit 206. Output.

(Control unit 206)
In the subtitle data decoder 103, the control unit 206 in the present embodiment uses the viewer behavior information input from the behavior data processing unit 205, such as viewing position data, for the caption data extracted from the broadcast signal and decoded. For example, the size of the display character is adjusted, output to the display processing unit 107, and OSD combined with a television screen display signal from the video signal processing unit 102.

(Operation flowchart of control unit 206)
The operation of the control unit 206 in the second embodiment will be further described with reference to the flowchart of FIG. FIG. 5 is a flowchart for explaining another example of the operation of the information receiving / reproducing apparatus according to the present invention, and an example of the operation in the control unit 206 of the information receiving / reproducing apparatus 20 shown in FIG. Show.

  When the information receiving / reproducing apparatus 20 is activated, the control unit 206 processes the received audio signal and video signal by the audio signal processing unit 101 and the video signal processing unit 102, respectively. Audio information and video information are output to the audio output unit 108 and the video output unit 109 via the display processing unit 107, respectively, and presented to the viewer (step S201).

  At this time, the subtitle data multiplexed and received in the video signal and decoded by the subtitle data decoder 103 remains in the received state, that is, the state created by the producer or the like maintains the OSD. Processed as data to be displayed. The processed subtitle data is output to the display processing unit 107, is OSD-combined with the video information from the video signal processing unit 102, and is output to the video output unit 109. That is, the initial setting state of the information receiving / reproducing apparatus 20 is set so that the received audio signal, video signal, and caption data are output in the same output format.

  Next, the control unit 206 displays the viewer's viewing behavior data output from the behavior data processing unit 205 together with time information, that is, in the case of the second embodiment, as shown in Table 3, Data on the position (that is, the distance between the viewer and the information receiving / reproducing device) is received together with time information (step S202). Table 3 exemplifies the distance between the viewer and the information receiving / reproducing apparatus 20 as the viewing position for every elapse of 5 minutes, from 16:30 on March 11 to 16:40. In both cases, the viewing distance detected by the sensor of the behavior information input unit 204 is 260 cm, which is a little far away.

  The control unit 206 determines whether or not the display format (for example, character size) of the caption data should be adjusted based on the received viewing behavior data, that is, the viewing distance (viewing position) (step S203).

  For example, whether or not the display format (for example, character size) of the caption data needs to be adjusted is determined by setting a threshold (for example, 150 cm or 250 cm) for the viewing distance between the information receiving / reproducing apparatus 20 and the viewer. If the distance is greater than or equal to the threshold (or if the distance is less than the threshold), the display format (eg, character size) of the caption data may be adjusted, or the information The display format (for example, character size) of the caption data may be continuously adjusted according to the increase / decrease degree of the viewing distance between the reception / playback device 20 and the viewer, and is easy for the viewer to read. Any determination method may be used as long as an appropriate adjustment method that allows the display format to be applied.

  Here, as a threshold for determining whether or not to adjust the display format (for example, character size) of caption data, the viewing distance between the viewer and the information receiving / reproducing device 20 is 3 as shown in Table 4. A case will be described as an example where the subtitle display format (character size) is adjusted according to each step. That is, Table 4 shows an example in which the character size of the caption data is switched in three steps using two viewing distances of 150 cm and 250 cm as threshold values, and between the viewer and the information receiving / reproducing device 20. If the viewing distance is far away from 250 cm or more, the character size of the caption data is 36 points of a larger size, if it is 150 cm or more and less than 250 cm, it is a standard 24 points, if it is a short distance of less than 150 cm, a smaller This shows a case where the size is set to 20 points and displayed.

  The control unit 206 determines whether or not the display format (for example, character size) of the caption data should be adjusted based on Table 4 above, and the viewer and the information receiving / reproducing device as shown in Table 3 above. If the viewing distance from the remote control device 20 is at a position slightly distant from 260 cm, which is more than 250 cm, which is the second threshold, it is determined that adjustment is necessary (YES in step S203), and the display format of the caption data is determined. The single character size is adjusted to 36 points as shown in Table 4, and the subtitle data whose display format is adjusted is output to the display processing unit 107 together with the time information (step S204). On the other hand, if it is determined that no adjustment is necessary (NO in step S203), the control unit 206 maintains the display format of the received and decoded subtitle data as it is, and sends the display information to the display processing unit 107 together with the time information. Output.

  The display processing unit 107 synchronizes the caption data sent from the control unit 206 and the video data sent from the video signal processing unit 102 based on time information, and displays the caption data as an OSD display. After being superimposed on the data (step S205), the data is output to the video output unit 109 and displayed on the screen (step S206). Thereafter, the process returns to step S202 to return to the viewing behavior data acquisition operation at the next time. The processing as described above is repeated until the information receiving / reproducing apparatus 20 is turned off and terminated.

In this way, the display format of the caption data, for example, the character size, is automatically adjusted according to the distance (viewing position) between the viewer and the information receiving / reproducing device 20, so that it is easy for the viewer to read. Subtitles can be presented.
Of course, the numerical data such as the viewing distance and the character size given here are merely examples and are not limited thereto.

  In the above-described second embodiment, an example in which easy-to-read subtitles are displayed by adjusting the character size among the display formats of the subtitle data has been described. However, the present invention is similar to the above-described first embodiment. It is not limited only to the adjustment of the character size. For example, the display position of the subtitles on the screen (upper or lower side of the screen, etc.), the type of character (font such as Gothic or extra thick Gothic), the thickness of the character line ( Bold or thin), character color (not only black, but also red or blue), character shadow, character background color, character contrast, brightness, sharpness, etc. may be adjusted.

  Further, the adjustment may be performed by any combination of the plurality of display formats, and any adjustment method may be used as long as it is a subtitle display format that allows easy display for the viewer. In addition to automatically adjusting, it asks the viewer whether the subtitles are easy to read, and waits for the viewer's response to adjust the display format. Also good.

  In the above-described second embodiment, the viewing behavior data relating to the viewing position (viewing distance) between the viewer and the information receiving / reproducing device 20 has been described as an example of the viewing behavior data received from the behavior data processing unit 205. However, the present invention is not limited to the viewing behavior data related to the viewing position. For example, viewing position information such as a viewing angle with the information receiving / reproducing apparatus 20 viewed by the viewer may be used. Alternatively, viewer movement information may be used to indicate whether the viewer is standing still or watching while moving.

  Further, viewer attitude information such as whether the viewer is sitting, watching, standing, or lying down, may be used. Furthermore, any combination of the plurality of viewing behavior data may be used. If the data can be automatically acquired by a sensor, a camera, a microphone, or the like, it is necessary to make subtitles easier to read. Any viewing behavior data may be used.

  In the second embodiment using the information receiving / reproducing apparatus 20 shown in FIG. 4, it is based only on viewing behavior data such as a viewer's posture, movement, and position inputted from the behavior information input unit 204. The subtitle data display format is adjusted, but the subtitle data display format is used in combination with the environmental data input from the environmental information input unit 104 in FIG. May be adjusted.

  When both the viewing behavior data and the ambient brightness data are used together, the adjustment value of the display format of the caption data determined from the ambient brightness data and the display of the caption data determined from the viewing behavior data are displayed. When the adjustment value of the format is different, a method of giving priority to the adjustment value of the display format determined from either one of the viewing behavior data and the ambient brightness data, or an intermediate value between the adjustment values of both Either a method of taking a value or a method of taking a larger (or smaller) calculated adjustment value may be used. Alternatively, it is also possible to determine the adjustment value by integrating environmental data such as environmental brightness data and viewing behavior data.

Example 3
In the third embodiment, unlike the adjustment example only for caption data as in the first and second embodiments, based on environmental data (such as environmental brightness data and environmental noise data) and viewer viewing behavior data, An example of adjusting the video information and audio information of the content (broadcast program) together with the caption data will be described.

  Specifically, in addition to adjusting the display format of subtitle data based on the environmental conditions of the room where the information receiving / reproducing device is installed, such as the brightness of the room and the noise level inside and outside the room, depending on the case Makes it possible to adjust the video information and audio information of the content (broadcast program), making it easier for the viewer to read the subtitles, and at the same time displaying the video in an optimal state for viewing the content, if necessary. It is also possible to output sound. That is, only the display format of the caption data may be adjusted based on the viewing environment surrounding the installation location where the information receiving / reproducing apparatus is installed, for example, the brightness of the room or the noise level inside or outside the room. Alternatively, the video information and audio information of the content (broadcast program) may also be adjusted.

  Here, the viewing environment status of the room as the installation location, such as the brightness of the room, is not limited to the environmental brightness data related to the brightness (illuminance) of the room, as in the case of the first embodiment. For example, environmental data relating to the presence or absence of external light incident or reflection on the information receiving / reproducing apparatus, that is, ambient brightness data, or the display of the information receiving / reproducing apparatus 10 is used. Environmental brightness data such as brightness on screen (illuminance) and presence / absence of reflection may be used. On the other hand, regarding the noise level inside and outside the room, the noise generated by the air conditioner, vacuum cleaner, personal computer, telephone, FAX, etc. installed in the room where the information receiving / reproducing device is installed, or the voice of people including viewers Alternatively, it is also possible to use environmental data relating to noise classified by the type of noise source, that is, noise from a vehicle, ringing bell, loudspeaker, etc. from the outside.

  As the display format of the caption data to be adjusted, the display position of the caption, the type of character, the size of the character, the thickness of the character line, the character line, and the like, as in the first and second embodiments. Any combination of colors, character shadows, character background colors, character contrast, brightness, sharpness, etc. may be used, and any display format can be used as long as it can make captions easier to see. Also good.

  In addition, the display format of the video of the content to be adjusted is adjusted by any one or more combinations of the video display position, display size, hue, resolution, brightness, etc., so that the video can be easily viewed. Any display format may be used as long as it is possible, and it may be possible to make the subtitles easier to see by adjusting the video of the content. On the other hand, the audio output format of the content to be adjusted is adjusted not only by the sound volume level, but also by any one or more combinations of sound quality, frequency spectrum related to the adjustment frequency band to be increased / decreased, etc. Any output format may be used as long as it can be easily heard.

  In the following, the loudness level (dB) of the room in which the information receiving / reproducing apparatus is installed as the viewing environment at the time of viewing is acquired as the environmental noise data, and the size of the character is used as the display format of the caption data to be adjusted. Further, a case where the volume is adjusted as an audio output format of the content to be adjusted will be described as an example. For example, if it is detected that the bell sound of a telephone in a room where an information receiving / reproducing device is installed, the character size of subtitle data is increased and the volume of content audio data is decreased. Or, by enlarging, it is possible to make the subtitles easier to read and to enjoy the content (broadcast program) without missing it.

  That is, the information receiving / reproducing apparatus applied to the third embodiment includes an environment information input unit 104 and an environment data processing unit 105 that detect the brightness (illuminance) of the room shown in FIG. And an environmental information input unit 304 that detects a noise level as environmental noise data, an environmental data processing unit 305, and a control unit 306, and an audio signal processing unit 101 that processes an audio signal. Instead of the display processing unit 107, the audio output unit 108 and the video output unit 109, an audio signal processing unit 301, an output processing unit 307, an audio output unit 308 and a video output unit 309 are provided. FIG. 6 is a block diagram showing still another example of the basic structure of the information receiving / reproducing apparatus according to the present invention.

  In the information receiving / reproducing apparatus 30 of FIG. 6, the noise level such as the noise level emitted by the noise source existing inside and outside the installation location where the information receiving / reproducing apparatus 30 is installed, and the loudness of the speech of the person including the viewer, etc. This is detected as environmental noise data by the information information input unit 304, processed by the environmental data processing unit 305, and output to the control unit 306. The control unit 306 adjusts the display format of the caption data based on the environmental noise data indicating the noise level received from the environmental data processing unit 305, and converts the audio data from the audio signal processing unit 301 that has processed the audio signal into noise. It is possible to adjust the volume level by processing according to the level. The adjusted caption data and audio data are output to the output processing unit 307 and are output to the video output unit 309 and the audio output unit 308, respectively.

(Basic operation of information receiving / reproducing device)
The basic operation of the information receiving / reproducing apparatus 30 configured as shown in FIG. 6 will be described below with reference to circuit blocks different from those of the information receiving / reproducing apparatuses 10 and 20 shown in FIGS.

(Audio signal processing unit 301)
The input audio signal is set in the audio signal processing unit 301 according to setting values such as an audio output level and sound quality input from a viewer using an input means such as a remote controller (not shown). The sound output level, sound quality, etc. are controlled so as to match the value and output to the control unit 306. The setting value is automatically set to an appropriate value directly calculated only by the control unit 306 according to the viewing environment state detected by the environment information input unit 304 without the viewer specifying the setting value with a remote controller or the like. You may make it set.

(Environmental information input unit 304)
As described above, the environment information input unit 304 detects the noise level inside and outside the room (for example, the volume of the telephone bell) when the information receiving / reproducing apparatus 30 is viewed, and uses the detected noise level as environmental data, that is, This is one of environmental data acquisition means for outputting environmental noise data to the environmental data processing unit 105, and is composed of a microphone, a sensor, and the like.
The microphone or sensor may be fixedly attached to the information receiving / reproducing apparatus 30 or attached to the ceiling or wall of the room where the information receiving / reproducing apparatus 30 is installed. Also good. Further, if the microphone or sensor is attached to the remote control operated by the viewer, the noise level around the viewer as the viewing environment can be detected more correctly.

(Environmental data processing unit 305)
The environmental data processing unit 305 recognizes the environmental noise data input from the environmental information input unit 304, converts it into data that can be processed by the control unit 306, and outputs the data to the control unit 306.

(Control unit 306)
In the caption data decoder 103, the control unit 306 displays a display format (for example, character size) of caption data extracted from the broadcast signal and decoded, and an output format (for example, output) of audio information input from the audio signal processing unit 301. Level) is adjusted based on the environmental noise data input from the environmental data processing unit 305, the subtitle data display format, for example, the size of display characters and the output format of audio information, for example, the output level, and the output processing unit 307 The subtitle data is OSD-combined with the TV screen display signal from the video signal processing unit 102 and the audio information is output to the audio output unit 308.

(Output processing unit 307)
The output processing unit 307 superimposes subtitle data, for example, whose display character size has been adjusted by the control unit 306 in synchronization with video data input from the video signal processing unit 102, that is, a television screen display signal. The audio information is synthesized as an OSD display and output to the video output unit 309, while the control unit 306 synchronizes the audio information whose output level is adjusted with the video data input from the video signal processing unit 102. Output to the audio output unit 308.

(Audio output unit 308)
The output level is adjusted by the control unit 306, and the audio information separated by the output processing unit 307 is output to an output device such as a speaker.

(Video output unit 309)
The output processing unit 307 synchronizes with the video data from the video signal processing unit 102, that is, the TV screen display signal, and the subtitle data processed by the control unit 306 is subjected to OSD synthesis and the resulting video is displayed on a liquid crystal display or the like. Output to the output device.

(Operation flowchart of control unit 306)
The operation of the control unit 306 in the third embodiment will be further described with reference to the flowchart of FIG. FIG. 7 is a flowchart for explaining still another example of the operation of the information receiving / reproducing apparatus according to the present invention, and an example of the operation in the control unit 306 of the information receiving / reproducing apparatus 30 shown in FIG. Show.

  When the information receiving / reproducing apparatus 30 is activated, the control unit 306 processes the received audio signal and video signal by the audio signal processing unit 301 and the video signal processing unit 102, respectively. The audio information and the processed video information are output to the audio output unit 308 via the control unit 306 and the output processing unit 307 and the video output unit 109 via the output processing unit 307, respectively (step S301). .

  At this time, the subtitle data multiplexed and received in the video signal and decoded by the subtitle data decoder 103 remains in the received state, that is, the state created by the producer or the like maintains the OSD. Processed as data to be displayed. The processed subtitle data is output to the display processing unit 107, is OSD-combined with the video information from the video signal processing unit 102, and is output to the video output unit 109. Similarly, the received audio information is also processed in the control unit 306 and the output processing unit 307 while maintaining the received state, that is, the state created by the producer or the like. The data is output to the unit 308. That is, the initial setting state of the information receiving / reproducing apparatus 30 is set so that the received audio signal, video signal, and caption data are output in the same output format.

  Next, the control unit 306 uses the noise level (volume: dB) around the viewer output from the environmental data processing unit 305 as environmental data, that is, environmental noise data, along with time information, that is, in the case of the third embodiment. As shown in Table 5, data on environmental noise (volume: dB) around the viewer (that is, noise level around the installation location where the information receiving / reproducing apparatus 30 is installed) and environmental noise data (Step S302). Table 5 exemplifies the noise level of the room where the information receiving / reproducing apparatus 30 is installed as environmental noise every time the interval of 5 minutes elapses, from 16:30 on March 11 to 16:40 Until now, the case where the environmental noise detected by the microphone and the sensor of the environmental information input unit 304 is at a relatively high noise level of 62 dB, 65 dB, and 64 dB is shown.

  Based on the received environmental data, that is, environmental noise data, the control unit 306 determines whether or not the display format (for example, character size) and audio output level of the caption data should be adjusted (step S303).

  The determination as to whether adjustment of the display format (for example, character size) and the audio output level of subtitle data is required is performed by, for example, using a threshold value for the noise level of the room in which the information receiving / reproducing apparatus 30 is installed, that is, the environmental noise level. (For example, 40 dB or 60 dB), and when the noise level is equal to or higher than the threshold value (or when the noise level is less than the threshold value), the subtitle data display format (for example, character size) and audio output level Or the subtitle data display format (for example, character size) and the audio output level in accordance with the degree of increase or decrease in the noise level of the room in which the information receiving / reproducing apparatus 30 is installed. May be adjusted continuously, or the subtitle display format is easy for the viewer to read and the audio output level is easy to hear. As long as it can apply Do adjustment method may be used any determination method.

  Here, the noise level of the room in which the information receiving / reproducing apparatus 30 is installed, that is, the environmental noise is used as a threshold for determining whether or not to adjust the display format (for example, character size) and the audio output level of the caption data. A case will be described as an example where the display is divided into three stages as shown in Table 6 and the subtitle display format (character size) and audio output level are adjusted according to each stage. In other words, Table 6 shows an example in which the character size and audio output level of caption data are switched in three stages using two environmental noise levels of 40 dB and 60 dB as threshold values.

  That is, if the noise level of the room in which the information receiving / reproducing apparatus 30 is installed is a high level of 60 dB or more, the subtitle data has a large character size of 36 points, the audio output level is 10 dB, and 40 dB. If it is less than 60 dB, the subtitle data has a standard character size of 24 points, the audio output level is standard 70 dB, and if the noise level is less than 40 dB, the subtitle data has a smaller character size. In this example, 20 points are set and output at 60 dB, which is a slightly lower audio output level.

  Based on Table 6, the control unit 306 determines whether or not the display format (for example, character size) and the audio output level of the caption data should be adjusted. If the noise level of the room in which the playback device 30 is installed is 62 dB, 65 dB, 64 dB, which is higher than the second threshold value of 60 dB or more, it is determined that adjustment is necessary (step S303). YES), subtitle data in which the character size, which is one of the display formats of the subtitle data, is adjusted to the larger 36 points as shown in Table 6, and the output level of the audio information is smaller as shown in Table 6. The audio data adjusted to the output level of 10 dB is output to the output processing unit 307 together with the time information (step S304). On the other hand, if it is determined that no adjustment is necessary (NO in step S303), the control unit 306 maintains the output format of the received and decoded caption data and the received audio information as it is, and the time information At the same time, the data is output to the output processing unit 307.

  In Table 6, when the noise around the viewer, that is, the noise level of the room in which the information receiving / reproducing apparatus 30 is installed becomes larger than the second threshold value of 60 dB, the output level of the audio information An example is shown in which adjustment is made so as to be reduced to 10 dB. However, the present invention is not limited to this case. For example, when it is detected that the noise source is the voice of a viewer by recognizing the type of the noise source outputting a large noise level, The output level of the audio information may be adjusted so as to increase to a level higher than that of the viewer's speaking voice.

  The output processing unit 307 synchronizes the caption data sent from the control unit 306 and the video data sent from the video signal processing unit 102 based on time information, and displays the caption data as an OSD display. In addition to being superimposed on the data (step S305), the audio information sent from the control unit 306 is also synchronized with the video data sent from the video signal processing unit 102 based on the time information (step S306). ), Respectively, to the video output unit 309 and the audio output unit 308 to display the screen and output the audio (step S307). Thereafter, the process returns to step S302 to return to the operation for acquiring environmental noise data at the next time. The processing as described above is repeated until the information receiving / reproducing apparatus 30 is turned off and terminated.

  In the third embodiment using FIG. 6 and FIG. 7 described above, the case where the display format of the caption data and the output format of the audio information of the content (broadcast program) are adjusted according to the environmental noise level is shown. As described above, it is possible to adjust only the display format of the caption data without adjusting the output format of the audio information, or in some cases, the display format of the video information of the content (broadcast program) May be adjusted. Furthermore, when adjusting the display format of video information as described above, both may be adjusted only in combination with the display format of subtitle data, or both output formats of subtitle data and audio information may be adjusted. It may be adjusted to include.

In this manner, the display format of the caption data, for example, the character size and / or the content, according to the noise level around the viewer at the time of viewing, that is, the environmental noise level around the installation location where the information receiving / reproducing apparatus 30 is set. The output format of the audio information of (broadcast program) such as the output volume level and / or the display format of the video information of the content such as the display position is automatically adjusted to present subtitles that are easy for the viewer to read. Content that can be viewed easily.
Of course, the numerical data such as the environmental noise level and the sound volume level given here as an example are merely examples, and the present invention is not limited thereto.

  In the above-described third embodiment, an example in which easy-to-read subtitles are displayed by adjusting the character size among the display formats of the subtitle data has been described. However, the present invention is the case of the above-described first and second embodiments. As with, it is not limited to just adjusting the character size. For example, the subtitle display position on the screen (upper or lower screen), character type (gothic or extra-thick Gothic font), character line, etc. You can adjust the thickness of the font (bold, thin, etc.), the color of the text (not only black, but red, blue, etc.), the shadow of the text, the background color of the text, the contrast of the text, brightness, sharpness, etc. good.

  Further, the adjustment may be performed by any combination of the plurality of display formats, and any adjustment method may be used as long as it is a subtitle display format that allows easy display for the viewer. In addition to automatically adjusting, it asks the viewer whether the subtitles are easy to read, and waits for the viewer's response to adjust the display format. Also good.

  Further, in the above-described third embodiment, an example in which a sound that is easy to hear is output by adjusting the output volume level among the output formats of the audio information of the content has been described. However, the present invention only adjusts the output volume level. For example, it is possible to adjust the sound quality and any one or more combinations of the frequency spectrum related to the adjustment frequency band to be increased / decreased, and the audio of the content can be easily heard. Any output format can be used. Furthermore, not only automatically adjusts, but also asks the viewer whether or not the sound is easy to hear, and waits for the viewer's response to adjust the output format. Also good.

  Further, although not specifically described in the above-described third embodiment, the display format of the video information of the content can be adjusted. For example, any one of the video display position, display size, hue, resolution, luminance, etc. It is possible to adjust by one or a plurality of combinations, and any display format can be used as long as the content video can be easily viewed. Further, by adjusting the content video, more subtitles can be used. It may be possible to make it easy to see. Furthermore, not only the adjustment is automatically performed, but the viewer is inquired whether the video is in an easy-to-view state, and the display format is adjusted and set after waiting for the viewer's response. good.

  Further, in the above-described third embodiment, as an example of the environmental data received from the environmental data processing unit 305, the environmental noise level of the room where the information receiving / reproducing apparatus 30 is installed (for example, a bell sound of a telephone) is used. As described above, the present invention is not limited only to the environmental noise level as described above, but noise generated from an air conditioner, vacuum cleaner, personal computer, telephone, FAX, or other installation equipment such as a human voice, Noise from noise sources inside and outside the installation site, such as noise from vehicles outside the room, ringing bells, loudspeakers, etc., noise such as the speech of people including viewers, and noise classified by type of noise source It may be used. Further, any combination of the plurality of environmental noise data may be used. If the data can be automatically acquired by a sensor, a microphone, or the like, the subtitles can be easily read and / or the audio. In order to make information easy to hear, any necessary environmental noise data may be used.

  In the third embodiment using the information receiving / reproducing apparatus 30 shown in FIG. 6, only the noise level (that is, environmental noise) such as a bell sound of a telephone or a human voice input from the environmental information input unit 304 is used. Thus, the case where the display format of caption data and the output format of audio information are adjusted has been described. However, the present invention is not limited to such a case, and is used in combination with the environmental data input from the environmental information input unit 104 of FIG. 1 described in the first embodiment, that is, environmental brightness data (such as room brightness). Thus, the display format of caption data, the output format of audio information, and the display format of video information may be adjusted, and further input from the action information input unit 204 of FIG. 4 described above in the second embodiment. The display format of caption data, the output format of audio information, and the display format of video information may be adjusted in combination with viewing behavior data (viewer position, movement, posture, etc.).

  In the case where a plurality of data such as environmental noise data, environmental brightness data, and viewing behavior data are used in combination, for example, an adjustment value of the display format of subtitle data determined from the environmental noise data, and environmental brightness data If the adjustment value of the display format of the caption data determined from is different from the adjustment value of the display format of the caption data determined from the viewing behavior data, the environmental noise data, the environmental brightness data, and the viewing behavior data A method of giving priority to output value adjustment values determined from predetermined data, a method of taking an intermediate value of the respective adjustment values, or a method in which each of the calculated adjustment values is larger (or smaller) Any method may be used. Alternatively, the adjustment value may be determined by integrating and processing the environmental noise data, the environmental brightness data, and the viewing behavior data.

Example 4
In the fourth embodiment, based on the environmental brightness data, viewing behavior data, and environmental noise data as in the first to third embodiments, the subtitle data display format and, if necessary, the audio information of the content (broadcast program) Unlike the case of adjusting the output format or the display format of video information, the subtitle data display format or the An example of adjusting the output format of audio information of content (broadcast program) and the display format of video information as necessary will be described.

  For example, “TV Anytime Forum”, one of the international private standardization organizations, is promoting standardization of meta information (metadata) in a standard called “TV Anytime”. Here, the meta information (metadata) is transmitted together with the content (broadcast program), is composed of program information indicating the genre of the broadcast program, the program content, etc., and information for identifying the broadcast program It is included. For example, the meta information includes broadcast program title, broadcast program identification ID, broadcast program genre, broadcast program content, broadcast program organization information, broadcast program production date, broadcast program broadcast time, broadcast program producer, broadcast program production. , Broadcast program performers, broadcast program rights related information, and the like. Further, not only a format of one piece of meta information for each broadcast program but also a technique for adding meta information to each scene in the broadcast program is being developed.

  Therefore, as shown in FIG. 8, the information receiving / reproducing apparatus applied to the fourth embodiment includes an environmental information input unit 304, an environmental data processing unit 305, and a control unit 306, which detect the environmental noise shown in FIG. A case will be described in which a meta information input unit 404 that acquires meta information from received broadcast signals, a metadata processing unit 405, and a control unit 406 are provided. FIG. 8 is a block diagram showing still another example of the basic structure of the information receiving / reproducing apparatus according to the present invention.

  In the information receiving / reproducing apparatus 40 of FIG. 8, any one of the meta information including various data as described above in the meta information input unit 404 from the broadcast signal received by the information receiving / reproducing apparatus 40. Or a plurality of data is acquired and output to the metadata processing unit 405, and the metadata processing unit 405 analyzes and processes the meta information in a format that can be processed by the control unit 406, and outputs it to the control unit 406. To do. The control unit 406 adjusts the display format of the caption data based on the metadata received from the metadata processing unit 405 and processes the audio data from the audio signal processing unit 301 that has processed the audio signal according to the metadata. It is possible to adjust the volume level. The adjusted caption data and audio data are output to the output processing unit 307 and are output to the video output unit 309 and the audio output unit 308, respectively.

  For example, if the genre of the content (broadcast program) is found to be thriller based on the metadata received from the metadata processing unit 405, the control unit 406 changes the subtitle character to a dull color. The character type is converted to a font of a swaying typeface (a typeface that can be seen in a haunted house) and output to the output processing unit 307. On the other hand, if it is determined that the genre of the content (broadcast program) is comedy, the subtitle text will be lighter in color and the text type will be rounded like a manga character. The font is converted to an increasing font) and output to the output processing unit 307. Furthermore, the display format of the caption data may be adjusted throughout the content (broadcast program) based on the metadata received from the metadata processing unit 405, and each scene of the content (broadcast program) may be adjusted. You may make it adjust dynamically according to every content.

(Basic operation of information receiving / reproducing device)
The basic operation of the information receiving / reproducing apparatus 40 configured as shown in FIG. 8 will be described below with reference to circuit blocks different from those of the information receiving / reproducing apparatuses 10 to 30 shown in FIGS.

(Meta information input unit 404)
As described above, the meta information input unit 404 is means for extracting and acquiring meta information received together with content (broadcast program) as a broadcast signal received by the information receiving / reproducing apparatus 40.

(Metadata processing unit 405)
The metadata processing unit 405 analyzes the meta information input from the meta information input unit 404, converts it into a data format that can be processed by the control unit 406, and outputs the data format to the control unit 406.

(Control unit 406)
In the caption data decoder 103, the control unit 406 displays a display format (for example, character size) of caption data extracted from the broadcast signal and decoded, and an output format (for example, output) of audio information input from the audio signal processing unit 301. Level) is adjusted based on the metadata input from the metadata processing unit 405, for example, the display character size of the caption data and the output level of the audio information, for example, and output to the output processing unit 307, and the caption data Is subjected to OSD synthesis with a television screen display signal from the video signal processing unit 102, while audio information is output to the audio output unit 308.

  In this way, by adjusting the display format of caption data and the output format of audio information according to the meta information (metadata) received together with the content (broadcast program), or without impairing the atmosphere of the program content, or It is possible to further increase the horror and fun of the program content.

  In the fourth embodiment using FIG. 8 described above, the case where the display format of the caption data and the output format of the audio information of the content (broadcast program) are adjusted according to the received metadata is shown. As in Example 3, it is possible to adjust only the display format of subtitle data without adjusting the output format of audio information, or depending on the case, the display format of video information of content (broadcast program) May be adjusted. Thus, when adjusting the display format of the video information, both may be adjusted only by the combination of the display format of the caption data, or the output format of both the caption data and the audio information is adjusted. It doesn't matter if you do.

  Thus, depending on the received metadata, the display format of subtitle data, such as the character size and / or the output format of audio information of the content (broadcast program), such as the output volume level, and / or the display format of the video information of the content For example, by automatically adjusting the display position, etc., it is possible to present subtitles that are easy for the viewer to read and that do not impair the atmosphere of the program. Content can be provided.

  Also in the fourth embodiment, as in the first to third embodiments, not only the adjustment of the character size but also, for example, the display position of subtitles on the screen (upper and lower sides of the screen), the type of characters (Fonts such as Gothic and extra-thick Gothic), character line thickness (bold and thin), character color (not only black, but also red or blue), character shadow, character background color, character Contrast, brightness, sharpness, etc. may be adjusted, or any combination of these display formats may be adjusted, and it is easy for viewers to read and does not impair the atmosphere of the program. Any adjustment method may be used as long as the display format of subtitles is obtained. Furthermore, the display format is not only automatically adjusted but also inquired to the viewer whether the subtitles are easy to read and the display does not impair the atmosphere of the program. May be adjusted and set.

  In the fourth embodiment, not only the adjustment of the output volume level among the output formats of the audio information of the content, but also any one or more combinations of, for example, the sound quality and the frequency spectrum related to the adjustment frequency band to be increased / decreased Any output format may be used as long as the audio of the content can be easily heard and the atmosphere of the program can be promoted. Furthermore, not only automatically adjusts, but also inquires whether the viewer can easily hear the sound and can promote the atmosphere of the program, and waits for the viewer's response to output. The format may be adjusted and set.

  Also in the fourth embodiment, as in the third embodiment, the display format of the video information of the content can be adjusted. For example, any one of the display position of the video, the display size, the hue, the resolution, the luminance, etc. Any display format may be used as long as it can be adjusted in one or a plurality of combinations, and the content video can be easily viewed and the atmosphere of the program can be promoted. By adjusting, it may be possible to make the subtitles easier to see and not impair the atmosphere of the program. In addition to automatically adjusting the video, it also asks the viewer whether the video is easy to see and can help the program atmosphere, and waits for the viewer's response. The display format may be adjusted and set.

  In the fourth embodiment that uses the information receiving / reproducing apparatus 40 shown in FIG. 8, the display format of caption data and the output format of audio information are based only on the meta information input from the meta information input unit 404. The case of adjusting was described. However, the present invention is not limited to such a case, and subtitles are used in combination with the environment brightness data (room brightness, etc.) input from the environment information input unit 104 of FIG. The data display format, audio information output format, and video information display format may be adjusted.

  Further, in combination with the viewing behavior data (viewer position, movement, posture, etc.) input from the behavior information input unit 204 of FIG. The format and the display format of the video information may be adjusted. Further, in combination with a noise level (that is, environmental noise data) such as a bell sound of a telephone or a human voice input from the environmental information input unit 304 of FIG. The output format of audio information and the display format of video information may be adjusted.

  When using a plurality of data, such as metadata, environmental brightness data, viewing behavior data, and environmental noise data, for example, the adjustment value of the display format of subtitle data determined from the metadata, and the environmental brightness Subtitle data display format adjustment value determined from the length data, subtitle data display format adjustment value determined from the viewing behavior data, and subtitle data display format adjustment value determined from the environmental noise data. In cases where they are different from each other, there is a method for giving priority to an output value adjustment value determined from any one of metadata, environmental brightness data, viewing behavior data, and environmental noise data. Either a method of taking an intermediate value or a method of taking a larger (or smaller) adjustment value calculated for each may be used. Alternatively, the adjustment value may be determined by integrating and handling metadata, environmental brightness data, viewing behavior data, and environmental noise data.

It is a block block diagram which shows an example of the basic composition of the information receiving / reproducing apparatus concerning this invention. It is a block block diagram which shows an example of the specific system configuration | structure of the information receiving / reproducing apparatus concerning this invention. It is a flowchart for demonstrating an example of operation | movement of the information receiving / reproducing apparatus which concerns on this invention. It is a block block diagram which shows the other example of the basic composition of the information receiving / reproducing apparatus concerning this invention. It is a flowchart for demonstrating the other example of operation | movement of the information receiving / reproducing apparatus which concerns on this invention. It is a block block diagram which shows the further different example of the basic composition of the information receiving / reproducing apparatus which concerns on this invention. It is a flowchart for demonstrating the further different example of operation | movement of the information receiving / reproducing apparatus which concerns on this invention. It is a block block diagram which shows the further different example of the basic composition of the information receiving / reproducing apparatus which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... CPU, 2 ... Work memory, 3 ... Input part, 4 ... Database, 5 ... Display part, 6 ... Audio output part, 7 ... External storage drive, 8 ... External storage (recording medium), 9 ... Reception part, 10 , 20, 30, 40 ... information receiving / reproducing apparatus, 101 ... audio signal processing unit, 102 ... video signal processing unit, 103 ... subtitle data decoder, 104 ... environmental information input unit, 105 ... environmental data processing unit, 106 ... control 107: Display processing unit, 108 ... Audio output unit, 109 ... Video output unit, 204 ... Behavior information input unit, 205 ... Behavior data processing unit, 206 ... Control unit, 301 ... Audio signal processing unit, 304 ... Environmental information Input unit, 305 ... environment data processing unit, 306 ... control unit, 307 ... output processing unit, 308 ... audio output unit, video output unit 309, 404 ... meta information input unit, 405 ... metadata processing unit, 406 ... Control unit.

Claims (28)

  In an information receiving / reproducing apparatus for receiving and reproducing a broadcast signal, subtitle data decoding means for decoding subtitle data multiplexed on the broadcast signal, and viewing around the installation location where the information receiving / reproducing apparatus is installed In an information receiving / reproducing apparatus comprising environment data acquisition means for acquiring environment data indicating an environmental situation, a display format of the caption data decoded according to the environment data acquired by the environment data acquisition means An information receiving / reproducing apparatus characterized by adjusting and displaying the information.   2. The information reception / reproduction device according to claim 1, wherein the environmental data acquired by the environmental data acquisition unit is environmental brightness data indicating the brightness of an installation location where the information reception / reproduction device is installed, An information receiving / reproducing apparatus comprising environmental noise data indicating a noise level of an installation place where the information receiving / reproducing apparatus is installed.   3. The information receiving / reproducing apparatus according to claim 2, wherein the environmental brightness data includes any one of information relating to illuminance at an installation location where the information receiving / reproducing apparatus is installed and brightness of a screen of the information receiving / reproducing apparatus. An information receiving / reproducing apparatus characterized by including one or more.   4. The information receiving / reproducing apparatus according to claim 2 or 3, wherein the environmental noise data includes noise generated by a noise source existing inside and outside the installation location where the information receiving / reproducing apparatus is installed, and a viewer. An information receiving / reproducing apparatus comprising any one or more pieces of information related to noise caused by human speech.   5. The information receiving / reproducing apparatus according to claim 1, wherein the environmental data acquired by the environmental data acquisition unit includes viewing behavior data indicating a behavior of a viewer, the viewing behavior data, It is decoded according to one or more data of environmental brightness data indicating the brightness of the installation location where the information receiving / reproducing apparatus is set and environmental noise data indicating the noise level of the installation location. An information receiving / reproducing apparatus for adjusting and displaying a display format of the caption data.   6. The information receiving / reproducing apparatus according to claim 5, wherein the viewing behavior data includes one or more of information related to a viewer's viewing position, a viewer's viewing posture, and a viewer's movement. Information receiving / reproducing device.   7. The information receiving / reproducing apparatus according to claim 6, wherein the viewing position of the viewer is a distance from the information receiving / reproducing apparatus being viewed by the viewer, and a viewing angle with respect to the information receiving / reproducing apparatus. An information receiving / reproducing apparatus comprising any one or more of the following.   7. The information receiving / reproducing apparatus according to claim 6, wherein the viewing posture of the viewer indicates whether the viewer who is viewing is sitting, watching, standing or watching lying down. An information receiving / reproducing apparatus characterized by including information.   7. The information receiving / reproducing apparatus according to claim 6, wherein the movement of the viewer includes information indicating whether the viewer is stationary or watching while moving. Playback device.   10. The information receiving / reproducing apparatus according to claim 1, wherein a display format of the subtitle data to be adjusted includes a display position on a screen, a character type, a character size, and a character line thickness. An information receiving / reproducing apparatus including any one or more of: character shade, character shadow, character background color, character contrast, character brightness, and character sharpness.   11. The information receiving / reproducing apparatus according to claim 1, wherein when the display format of the caption data is adjusted and displayed, the caption data is displayed using the adjusted display format. An information receiving / reproducing apparatus that outputs an inquiry message.   12. The information receiving / reproducing apparatus according to claim 1, further comprising metadata acquisition means for acquiring metadata indicating program information of a broadcast program, wherein the metadata acquired by the metadata acquisition means. An information receiving / reproducing apparatus that adjusts a display format of the decoded subtitle data in accordance with data and / or the environmental data and displays the adjusted subtitle data.   12. The information receiving / reproducing apparatus according to claim 1, wherein a display format of the subtitle data and / or audio information of a broadcast program according to the environmental data acquired by the environmental data acquiring unit. An information receiving / reproducing apparatus characterized by adjusting and displaying the output format and / or the video information display format of a broadcast program.   14. The information receiving / reproducing apparatus according to claim 13, further comprising metadata acquisition means for acquiring metadata indicating program information of a broadcast program, wherein the environmental data acquired by the environmental data acquisition means, and / or And adjusting the display format of the caption data and / or the output format of the audio information of the broadcast program and / or the display format of the video information of the broadcast program according to the metadata acquired by the metadata acquisition means. An information receiving / reproducing apparatus characterized by being displayed.   15. The information receiving / reproducing apparatus according to claim 13 or 14, wherein the audio information output format of the broadcast program to be adjusted includes one or more of a volume level, a sound quality, and a frequency spectrum of the audio information. Information receiving / reproducing device.   15. The information receiving / reproducing apparatus according to claim 13 or 14, wherein the video information display format of the broadcast program to be adjusted is any one or more of display position, display size, hue, resolution, and luminance of video information. An information receiving / reproducing apparatus comprising:   17. The information receiving / reproducing apparatus according to claim 13, wherein whether or not the subtitle data is displayed using the adjusted display format when the display format of the subtitle data is adjusted and displayed. And / or whether to output the audio information of the broadcast program using the adjusted output format and / or whether to display the video information of the broadcast program using the adjusted display format An information receiving / reproducing apparatus characterized by outputting an inquiry message.   In an information receiving / reproducing apparatus for receiving and reproducing a broadcast signal, subtitle data decoding means for decoding subtitle data multiplexed in the broadcast signal, and metadata acquisition means for acquiring metadata indicating program information of the broadcast program And an information receiving / reproducing apparatus comprising: adjusting the display format of the decoded subtitle data in accordance with the metadata acquired by the metadata acquisition means and displaying the information. -Playback device.   19. The information receiving / reproducing apparatus according to claim 18, wherein the metadata acquired by the metadata acquisition means includes broadcast program title, broadcast program identification ID, broadcast program genre, broadcast program content, broadcast program organization information. Including broadcast program production date, broadcast program broadcast time, broadcast program producer, broadcast program director, broadcast program performer, and data related to the broadcast program including broadcast program rights related information. An information receiving / reproducing apparatus.   The information reception / reproduction device according to claim 18 or 19, wherein the display format of the caption data to be adjusted is a display position on a screen, a character type, a character size, a character line thickness, a character line An information receiving / reproducing apparatus including any one or more of hue, character shadow, character background color, character contrast, character brightness, and character sharpness.   21. The information receiving / reproducing apparatus according to claim 18, wherein when the display format of the caption data is adjusted and displayed, the caption data is displayed using the adjusted display format. An information receiving / reproducing apparatus that outputs an inquiry message.   The information receiving / reproducing apparatus according to any one of claims 18 to 21, wherein in addition to the display format of the subtitle data according to the metadata acquired by the metadata acquisition means, the audio information of the broadcast program is further displayed. An information receiving / reproducing apparatus for adjusting and displaying an output format and / or a display format of video information of a broadcast program.   23. The information receiving / reproducing apparatus according to claim 22, wherein the audio information output format of the broadcast program to be adjusted includes one or more of a volume level, a sound quality, and a frequency spectrum of the audio information. Information receiving / reproducing device.   23. The information receiving / reproducing apparatus according to claim 22, wherein the video information display format of the broadcast program to be adjusted includes one or more of display position, display size, hue, resolution, and luminance of the video information. An information receiving / reproducing device characterized by the above.   25. The information receiving / reproducing apparatus according to claim 22, wherein, when the display format of the caption data is adjusted and displayed, the caption data is displayed using the adjusted display format. And / or whether to output the audio information of the broadcast program using the adjusted output format and / or whether to display the video information of the broadcast program using the adjusted display format An information receiving / reproducing apparatus characterized by outputting an inquiry message.   Obtain subtitle data decoding step for decoding subtitle data multiplexed on broadcast signal, and obtain environmental data indicating the viewing environment around the installation location where the information receiving / reproducing device for receiving and reproducing broadcast signal is installed An environmental data acquisition step and / or a metadata acquisition step of acquiring metadata indicating program information of a broadcast program, and the environmental data and / or the metadata acquisition step acquired by the environmental data acquisition step An information receiving / reproducing method characterized by adjusting and displaying a display format of the decoded subtitle data in accordance with the metadata acquired by the above.   Obtain subtitle data decoding step for decoding subtitle data multiplexed on broadcast signal, and obtain environmental data indicating the viewing environment around the installation location where the information receiving / reproducing device for receiving and reproducing broadcast signal is installed An environmental data acquisition step and / or a metadata acquisition step of acquiring metadata indicating program information of a broadcast program, and the environmental data and / or the metadata acquisition step acquired by the environmental data acquisition step An information receiving / reproducing program for adjusting and displaying a display format of the decoded subtitle data in accordance with the metadata acquired by the method.   Obtain subtitle data decoding step for decoding subtitle data multiplexed on broadcast signal, and obtain environmental data indicating the viewing environment around the installation location where the information receiving / reproducing device for receiving and reproducing broadcast signal is installed An environmental data acquisition step and / or a metadata acquisition step of acquiring metadata indicating program information of a broadcast program, and the environmental data and / or the metadata acquisition step acquired by the environmental data acquisition step An information receiving / reproducing program for adjusting and displaying a display format of the decoded subtitle data in accordance with the metadata acquired by the method is stored.

Images