JP5941760B2 - Display control device, display control method, display system, program, and recording medium - Google Patents

Description

  The present invention relates to a display control device, a display control method, and a display control program that display each component constituting content on a display device such as a television. The present invention also relates to a display system including such a display control device, a recording medium in which such a display control program is recorded, and metadata handled by such a display control device.

  Conventionally, content has been distributed by broadcasting. However, with the development of communication technology, content is now distributed not only through broadcasting but also through a communication network.

  Along with this, as exemplified in Patent Document 1 and Patent Document 2, various technologies for displaying content distributed through a communication network on a display device have been proposed.

  A system has also been proposed in which distributed video content is displayed in cooperation with a plurality of display devices. For example, Patent Document 3 discloses a system including a server and a plurality of mobile phone terminals arranged side by side.

  In the system of Patent Document 3, the server generates divided videos of the same number as the number of mobile phone terminals by dividing the entire video to be distributed into strips, and is arranged on the left side (more right side). The divided video located on the left side (more right side) in the video is distributed toward the terminal. Then, the mobile phone terminals arranged on the left and right display the distributed divided video. Thereby, the user can browse a video having a size larger than that of browsing with one mobile phone terminal.

Japanese Patent No. 4218637 (published July 13, 2006) Special Table 2010-534958 (published on November 11, 2010) JP 2003-5947 A (published January 10, 2003)

  By the way, there are videos that are preferable to be viewed on a large screen using a projector or the like, and there are videos that are preferably viewed on a portable display terminal (smart phone, tablet terminal, etc.) at hand.

  For example, in the case of a baseball broadcast program distributed using multi-viewpoint camera shooting, it is more realistic to see a video with many spectators in the stadium as if it were actually on the stadium. It is thought that you can taste even more. Also, there is an advantage that it is easier to see the video that is mainly composed of characters such as recipe information provided during the cooking program by looking at the portable display terminal at hand.

  However, at present, the multi-screen type can be controlled on the content provider side so that a video that is preferable to be viewed on a large screen is displayed on a large screen and a video that is preferable to be viewed on a mobile terminal at hand is displayed on the mobile terminal. Broadcasting technology has not been established. Therefore, it is not easy to display an image on an optimal display device in a multi-screen display system.

  The present invention has been made in view of the above problems, and its main purpose is to display components included in content on an appropriate display device corresponding to the component among a plurality of display devices. It is to realize a possible display control device.

  In order to solve the above problems, a display control device according to the present invention includes a first acquisition unit that acquires, from a distribution device, content including one or more components displayed on a display unit, and the one or more components. Second acquisition means for acquiring, from each distribution device, a unique value that is unique for each class related to the recommended viewing distance determined by the content provider and that indicates the class to which the recommended viewing distance of the component belongs; Display control means for displaying a component included in the content acquired by the first acquisition means on a plurality of display devices that can be controlled by the own device or a part of the display devices, and the display control means comprises: For each of the one or more components, the component should be displayed based on the magnitude of the component's unique value The shown device, select from among the plurality of display devices, it is characterized in being configured so as to display the component to the selected display device. Here, both the creator of the content that provides the content to the distributor and the content distributor that provides the content to the user of the display control apparatus may correspond to the “provider of the content”. In addition, the display control device of the present invention may be one of the plurality of display devices, or may be a device separate from the plurality of display devices. Furthermore, when the display device is a liquid crystal television, for example, the recommended viewing distance of the display device is generally three times the vertical length of the display unit (display screen), but is not limited thereto.

  According to said structure, the display control apparatus which concerns on this invention has an effect that the component contained in a content can be displayed on the suitable display apparatus according to the component among several display apparatuses.

  In order to solve the above problems, a display control method for a display control device according to the present invention includes a first acquisition step of acquiring content including one or more components displayed on a display unit from a distribution device, and the above one For each of the above components, a second unique value is obtained from the distribution device that is a unique value that is unique for each class related to the recommended viewing distance determined by the content provider and that indicates the class to which the recommended viewing distance of the component belongs. An acquisition step, and a display control step for displaying a component included in the content acquired in the first acquisition step on a plurality of display devices that can be controlled by the device or a part of the display devices, and the display control step In the display control step, for each of the one or more components, the component is determined based on the size of the unique value of the component. A display device to be displayed cement, selected from among the plurality of display devices to display the component to the selected display device is characterized in that.

  According to said structure, the display control method which concerns on this invention has an effect similar to the display control apparatus which concerns on this invention.

  The display control device according to the present invention further includes third acquisition means for acquiring a measured value of the distance between the display unit on which the component is displayed by the display device and the user from each of the plurality of display devices. The display control means, for each of the one or more components, refers to the unique value of the component and displays the display device that is the acquisition destination of the measurement value belonging to the class closest to the class indicated by the unique value. It is desirable to select from a plurality of display devices and display the component on the selected display device.

  According to said structure, the display control apparatus which concerns on this invention has the further effect that the component contained in content can be displayed on the suitable display apparatus according to the position where a user exists.

The display control device according to the present invention is configured such that the third acquisition unit periodically or irregularly executes a process of acquiring the measurement value from each of the plurality of display devices.
It is desirable that the display control unit is configured to select a display device that displays the component for each of the one or more components each time the third acquisition unit executes the process.

  According to the above configuration, the display control device according to the present invention displays the components included in the content on the appropriate display device corresponding to the position after the movement for each movement even when the user repeats the movement. There is a further effect that it is possible.

  The display control device according to the present invention further includes a face distance measurement unit that measures a face distance, which is a distance between a display unit on which a component is displayed by the own device and a user's face, and the display control unit includes When the text component is included in one or more components and the text component is displayed on the display unit, as the face distance measurement value by the face distance measurement unit decreases, the stepwise step is performed. It is desirable that the text included in the text component be displayed with a large character size.

  According to said structure, the display control apparatus which concerns on this invention has the further effect that the user who is lying on the bed can browse the text of a size suitable for the user only by moving the face back and forth.

  In the display control device according to the present invention, when the display control means includes a text component in the one or more components, the measured value of the distance from the display unit on which the text component is displayed to the user increases. It is desirable to be configured to display text contained in the text component with a relatively large character size.

  According to said structure, the display control apparatus which concerns on this invention has the further effect that a text can be displayed with the suitable size according to the distance from a display part to a user, wherever a user moves. .

  In the display control device according to the present invention, when the display control unit includes a video component in the one or more components, the display unit is included in the entire displayable area of the display unit on which the video component is displayed. It is desirable that the video component is displayed so as to occupy a relatively large area as the measured value of the distance from the user to the user increases.

  According to said structure, the display control apparatus which concerns on this invention can further display the image | video of an appropriate size according to the distance from a display part to a user in a display part, wherever a user moves. There is an effect.

  In the display control device according to the present invention, information indicating the recommended viewing distance regarding each of the plurality of display devices is recorded in a storage unit accessible by the display control device. For each of the two or more components, a display device having the recommended viewing distance closest to the recommended viewing distance of the component is selected from the plurality of display devices based on the size of the unique value of the component and the information. Preferably, the component is displayed on the selected display device.

  According to the above configuration, the display control device according to the present invention is a display device that displays a component, and a display device whose recommended viewing distance is relatively close to the recommended viewing distance determined by the content provider for the component. Can be selected from a plurality of display devices. Therefore, the display control device according to the present invention has an effect that the component included in the content can be displayed on an appropriate display device corresponding to the component among the plurality of display devices.

  In the display control device according to the present invention, the plurality of display devices are composed of a portable display terminal and other display devices, and the display control means is configured so that each of the one or more components The component is displayed on the portable display terminal when the unique value is less than the first threshold, and is displayed on the other display device when the unique value is greater than or equal to the first threshold. It is desirable that

  In the display control device according to the present invention, the plurality of display devices include a projector, a television set, and a portable display terminal, and the display control unit has a unique component for each of the one or more components. If the value is greater than or equal to a second threshold greater than the first threshold, the component is displayed by the projector, and if the unique value is greater than or equal to the first threshold and less than the second threshold, the component is displayed on the television. It is desirable to be configured to display.

  In the display control device according to the present invention, the one or more components include a component uploaded to the distribution device by a viewer of the content and the unique value being less than the first threshold value. It is desirable that

  The display control device according to the present invention further includes identification means for identifying a user who is using the display control device, and the storage unit accessible by the display control device includes visual acuity information indicating the visual acuity of the user. When the one or more components include a video component, the display control means has a weak visual acuity indicated by the visual acuity information in the entire displayable area of the display unit on which the video component is displayed. It is desirable to display the video component so as to occupy a relatively large area.

  According to said structure, the display control apparatus which concerns on this invention has the further effect that the image | video of a suitable size according to a user's visual acuity can be displayed in a display part.

  The display control device according to the present invention further includes identification means for identifying a user who is using the display control device, and the storage unit accessible by the display control device includes visual acuity information indicating the visual acuity of the user. When the one or more components include a text component, the display control means displays the text included in the text component with a relatively large character size as the visual acuity indicated by the visual acuity information is weaker. It is desirable to be configured to display.

  According to said structure, the display control apparatus which concerns on this invention has the further effect that a text can be displayed with the suitable size according to a user's visual acuity.

  In the display control apparatus according to the present invention, the content includes an audio component, and output control means for outputting the audio component to a display device having an audio output function capable of outputting the audio component, and the display control. Identification means for identifying a user who is using the device, wherein the output control means is configured to control an audio output level when outputting the audio component based on the hearing level of the user. It is desirable that

  According to said structure, the display control apparatus which concerns on this invention has the further effect that an audio | voice can be output with the appropriate audio | voice output level according to a user's hearing level.

  In the display control apparatus according to the present invention, it is preferable that the second acquisition unit is configured to acquire metadata indicating the unique value related to each of the one or more components.

  The present invention is a display system including the display control device, including the plurality of display devices, and as one of the plurality of display devices or the plurality of display devices. It can also be realized as a display system including the display control device as a device separate from the display device.

  Further, a program for operating a computer as a display control apparatus according to the present invention, characterized by causing a computer to function as each means of the display control apparatus, and a computer recording such a program, A readable recording medium is also included in the scope of the present invention.

  Furthermore, metadata handled by the display control device according to the present invention for displaying content on the display device is also included in the scope of the present invention. Specifically, each of one or more components displayed on the display unit is a unique value for each class related to the recommended viewing distance determined by the content provider, and the class to which the recommended viewing distance of the component belongs. The metadata in which the unique value indicating is included in the scope of the present invention.

  As described above, the display control device according to the present invention has an effect that a component included in content can be displayed on an appropriate display device corresponding to the component among a plurality of display devices.

FIG. 1 is a diagram showing a main configuration of a distribution device and a display system according to an embodiment of the present invention. FIG. 2 is a diagram schematically showing a usage image of the display system. FIG. 3A is a diagram illustrating metadata received by the television of FIG. 1, and FIG. 3B shows the maximum and minimum recommended viewing distances belonging to each class. FIG. FIG. 4 is a diagram schematically illustrating a part of the system configuration information recorded on the television of FIG. FIG. 5 is a flowchart showing the overall operation of the display system of FIG. FIG. 6 is a diagram schematically illustrating metadata that the distribution device according to the modification transmits to the television according to the modification. 6 is a diagram exemplifying metadata transmitted from the distribution apparatus according to the modification of the distribution apparatus of FIG. 1 to the television according to the modification of the television of FIG. It is also a figure which illustrates the metadata which the delivery apparatus which concerns on this modification transmits to the television which concerns on the modification of the television of FIG. It is the figure which illustrated typically the system configuration information which the television which concerns on the modification of the television of FIG. 1 has memorize | stored. It is a flowchart figure which shows the operation | movement of the television which concerns on the modification of the television of FIG. It is the figure which illustrated typically the system configuration information which the television which concerns on the modification of the television of FIG. 1 has memorize | stored. It is the figure which illustrated the various information which a television acquires during the operation | movement of FIG. It is the figure which illustrated the various information which a television acquires during the operation | movement of FIG. It is the figure which illustrated the presentation apparatus which presents the component which the television determined as a result of the operation | movement of FIG. 8 for every component. It is the figure which illustrated the presentation apparatus which presents the component which the television determined as a result of the operation | movement of FIG. 8 for every component. FIG. 14 is a diagram showing a main configuration of a distribution device and a display system according to another embodiment of the present invention. FIG. 15 is a diagram schematically illustrating a part of user information recorded on the television shown in FIG. FIG. 16 is a diagram schematically illustrating a part of the system configuration information recorded on the television shown in FIG. FIG. 17 is a diagram schematically showing a usage image of the display system of FIG. FIG. 18 is a flowchart showing the overall operation of the display system of FIG. It is the figure which illustrated typically the system configuration information which the television which concerns on the modification of the television of FIG. 14 has memorize | stored. It is a flowchart figure which shows the operation | movement of the television which concerns on the modification of the television of FIG. It is the figure which illustrated typically the system configuration information which the television which concerns on the modification of the television of FIG. 14 has memorize | stored. It is the figure which illustrated the various information which a television acquires during the operation | movement of FIG. It is the figure which illustrated the various information which a television acquires during the operation | movement of FIG. It is the figure which illustrated the presentation apparatus which presents the component which the television determined as a result of the operation | movement of FIG. 20 for every component. It is the figure which illustrated the presentation apparatus which presents the component which the television determined as a result of the operation | movement of FIG. 20 for every component. FIG. 26 is a diagram illustrating the relationship between the distance from the position where the character is written and the visual acuity necessary to identify the character for characters of sizes of 75 mm, 150 mm, and 300 mm. FIG. 27 is a diagram schematically illustrating a part of user information recorded on a television according to another embodiment. FIG. 28 is a diagram showing the relationship among temperature, humidity, and sound pressure attenuation rate for each of the low sound range, medium sound range, and high sound range.

Embodiment 1
A display system according to an embodiment of the present invention will be described below with reference to FIGS.

  The display system according to the present embodiment is a display system that displays content distributed from a distribution device using multi-screen broadcast technology.

  The content distributed in this embodiment includes a plurality of components. Specifically, four components, each component (display component) of a main video and two sub-videos displayed on the display unit, and an audio component output from the audio output unit are included. The above four components are only examples for carrying out the present invention. For example, the content may include other types of display components such as text (subtitles, etc.) and data (BML, web information, etc.), and the content may include only video components.

  Further, the display system according to the present embodiment includes a popular television that combines the roles of a receiving device, a presentation device (display device), and a presentation control device that controls other presentation devices. Furthermore, the display system according to the present embodiment includes a tablet terminal that plays a role as a presentation device (display device) and a super-large screen display. Note that a 40-inch screen size television (a television with a recommended viewing distance of about 1.5 m) is assumed as a popular television, and a 100-inch screen size display (a recommended viewing distance) as an ultra-large screen display. Is assumed to be a display of about 3.8 m). In addition, the popular television, the tablet terminal, and the super large screen display used in the present embodiment are merely examples of a display device that should be used in carrying out the present invention. For example, a projector may be used instead of the super large screen display.

  In addition, popular televisions support content playback based on MPEG Media Transport (hereinafter referred to as MMT), which is a transport system for hybrid distribution, which is being standardized in MPEG. Similarly, the distribution apparatus supports content distribution based on MMT. In MMT, content is defined as “package”, and component is defined as “asset”. In the following, description will be made using the terminology of MMT as necessary, but it should be mentioned in advance that the present invention is not an invention based on the technology of MMT. That is, the present invention is not limited to the MMT, and can be applied to various standards and operation techniques.

  First, configurations of a distribution device and a display system according to the present embodiment, and an arrangement of each device of the display system will be described with reference to FIGS. 1 and 2. FIG. 1 is a block diagram illustrating configurations of the display system 1 and the distribution apparatus 200 according to the present embodiment, and FIG. 2 is a diagram schematically illustrating a use image of the display system 1 according to the present embodiment.

  As shown in FIG. 1, the display system 1 includes a popular television 100, a super-large screen display 150, and a tablet terminal 160. The popular television 100 receives content transmitted by the distribution device 200 through a broadcast wave. It is supposed to receive. In addition, as shown in FIG. 2, the tablet terminal 160 is at the user's hand sitting on the seat, and the popular television 100 is placed 1.5 meters ahead of the seat (advancing by the recommended viewing distance of the television 100), which is extremely large. The screen display 150 is arranged in front of the seat 3.8 m (in front of the recommended viewing distance of the display 150).

(Distribution device 200)
The distribution device 200 includes a content storage unit 201, a metadata storage unit 202, and a content transmission unit 203.

  The content storage unit 201 stores main video, two sub-videos (first sub-video and second sub-video), and audio components.

  Metadata related to content is recorded in the metadata storage unit 202. This metadata is configuration information in the MMT. In this metadata, as illustrated in FIG. 3A, for each component (asset), a level value indicating the class related to the recommended viewing distance of the component (attribute “view_dist_level” attribute surrounded by a dotted line) Value). In the example of FIG. 3, “5” is included as the level value of the audio component (corresponding to “unique value” in the claims), and “2” is included as the level value of the main video component.

  Note that the recommended viewing distance of each component included in the content is determined in advance by the provider of the content. In addition, the number of classes and the maximum and minimum values of each class are defined in advance, and the content provider replaces the recommended viewing distance of each content with a level value based on this rule. It shall be described in. For example, a content provider who sets the recommended viewing distance of the main video as “2 m” describes “2” as the level value of the main video as shown in FIG. In addition, a content provider who defines the recommended viewing distance of the first sub-picture as “3.5 m” because he / she prefers viewing on a large screen describes “3” as the level value of the first sub-picture.

  The content transmission unit 203 reads the content from the content storage unit 201, reads the metadata related to the content from the metadata storage unit 202, and distributes the content on the broadcast wave together with the metadata.

(Popular TV 100)
The popular television 100 includes a content reception unit 101, a component separation unit 102, a content presentation control unit 103, an information input unit 104, a system configuration information storage unit 105, a component transmission unit 106, a display unit 107, and an audio output unit 108. Yes.

  The content receiving unit 101 is a tuner that receives content and metadata transmitted on a broadcast wave.

  The component separation unit 102 separates each component from the content supplied from the content reception unit 101.

  Each time a new presentation device is registered in the television 100, the content presentation control unit 103 sets the recommended viewing distance to the level value i for each i from 1 to 5 (hereinafter simply abbreviated as “for each i”). It is determined which presentation device should display the components belonging to the class. Specifically, the presentation device having the class to which the manufacturer recommended viewing distance belongs is closest to the class having the level value i is determined as the device to display the component belonging to the class having the level value i. Then, the level value i is recorded in the system configuration information storage unit 105 as part of the system configuration information related to the presentation device. If the level value has already been recorded as part of the system configuration information related to the presentation device, the content presentation control unit 103 updates the level value to i.

  In addition, the content presentation control unit 103 includes, for each component included in the content, a device that should present the component, metadata about the content, and a system configuration of each presentation device recorded in the system configuration information storage unit 105. And based on the information. Specifically, the level value of each component described in the metadata is referred to, and the component in which the level value i is described is presented to a presentation device that includes the level value i as part of the system configuration information. Decide that.

  When the device that presents the component is a presentation device registered in the popular television 100, the content presentation control unit 103 transmits the component to the device that should present the component via the component transmission unit 106. Further, when the device to present the component is the popular television 100, when the component is a display component, the component is displayed on the display unit 107, and when the component is an audio component, the component is output as audio. Output from the unit 108. At this time, for example, when a plurality of video components are allocated to the same presentation device and information on the screen layout is included in the configuration information (CI), the content presentation control unit 103 includes the information. Based on this, display or audio output is performed.

  The information input unit 104 is an input device provided for allowing the user to input information. The user can input the system configuration information of the presentation device registered in the television 100 using the information input unit 104.

  In the system configuration information storage unit 105 (corresponding to “storage unit” in the claims), system configuration information of the television 100 itself and system configuration information of other presentation devices registered in the television 100 are recorded. As part of the system configuration information, the manufacturer's recommended viewing distance (about three times the vertical size of the display screen) and the level value of the component to be displayed are recorded. Specifically, as shown in FIG. 4, system configuration information of the three presentation devices of the television 100, the display 150, and the tablet terminal 160 is recorded in the system configuration information storage unit 105.

  The component transmission unit 106 is a communication interface that transmits components to the presentation device determined by the content presentation control unit 103. The communication interface may be a wireless LAN module, a Bluetooth (registered trademark) communication module, or may be a communication module that complies with a communication standard regardless of wired or wireless.

  The display unit 107 is a 40-inch display screen on which display components are displayed.

  The audio output unit 108 is a speaker that outputs audio components.

(Super large screen display 150)
The super large screen display 150 includes a component receiving unit 151, a component presentation control unit 152, a display unit 153, and an audio output unit 154.

  The component reception unit 151 is a communication interface that receives components transmitted from the television 100.

  When the component supplied from the component receiving unit 151 is a display component, the component presentation control unit 152 displays the component on the display unit 153, and when the component supplied from the component receiving unit 151 is an audio component. Outputs the component from the audio output unit 154.

  The display unit 153 is a 100-inch display screen on which display components are displayed.

  The audio output unit 154 is a speaker that outputs audio components.

(Tablet terminal 160)
The tablet terminal 160 includes a component receiving unit 161, a component presentation control unit 162, a display unit 163, and an audio output unit 164.

  The component reception unit 161 is a communication interface that receives components transmitted from the television 100.

  When the component supplied from the component receiving unit 161 is a display component, the component presentation control unit 162 displays the component on the display unit 163, and when the component supplied from the component receiving unit 161 is an audio component. Outputs the component from the audio output unit 164.

  The display unit 163 is a small display screen on which display components are displayed.

  The audio output unit 164 is a speaker that outputs audio components.

  Heretofore, the configurations of the distribution device and the display system according to the present embodiment, and the arrangement of each device of the display system have been described.

  Next, an operation in which the display system 1 according to the present embodiment receives content from the distribution apparatus 200 and reproduces each component will be described with reference to FIG. FIG. 5 is a flowchart showing the operation of the display system 1 according to the present embodiment.

  As shown in FIG. 5, the content receiving unit 101 of the television 100 receives the content and metadata related to the content, and supplies the received content to the component separating unit 102 (S1).

  The component separation unit 102 separates each component from the content supplied from the content reception unit 101, and supplies each component to the content presentation control unit 103 together with metadata (S2).

  The content presentation control unit 103 refers to the metadata supplied from the component separation unit 102 and confirms the class (level value) related to the recommended viewing distance of each component (S3).

  After S3, the content presentation control unit 103 determines whether or not the display system 1 includes a presentation device other than the reception device (the television 100). That is, the content presentation control unit 103 determines whether or not one or more presentation devices are registered in the television 100 (S4).

  Since the display 150 and the tablet terminal 160 are registered in the television 100, the content presentation control unit 103 determines that one or more presentation devices are registered in the television 100 (YES in S4), and proceeds to S5. . If it is determined that no presentation device is registered in the television 100 (NO in S4), the content presentation control unit 103 determines to present all components on the television 100 (S7). Proceed to S8.

  In S5, the content presentation control unit 103 selects, from each presentation device, a presentation device that should present a component for each component, based on the system configuration information of each presentation device recorded in the system configuration information storage unit. . Specifically, for each component, a presentation device in which a level value equal to the level value of the target component confirmed in S3 is recorded as part of the system configuration information is selected as a presentation device to present the target component. To do.

  For example, when the content receiving unit 101 receives the metadata shown in FIG. 3A in S1, the content presentation control unit 103 determines that the main video component whose level value is 2 based on the system configuration information in FIG. Is selected as a device that should present “2” as the level value of the component to be displayed. Similarly, the content presentation control unit 103 selects the display 150 as a device to present the audio component and the first sub-video component, and selects the tablet terminal 160 as a device to present the second sub-video component.

  In S6, the content presentation control unit 103 transmits the component to be presented by the presentation device to each registered presentation device selected in S5. Speaking in accordance with the above example, the content presentation control unit 103 transmits the audio component and the first sub-video component to the display 150, and transmits the second sub-video component to the tablet terminal 160. In addition, when each component included in the content is a component to be played back in synchronization with the entire display system 1, the content presentation control unit 103 transmits information for synchronization control to each presentation device together with the component. May be. After the process of S6, the display system 1 proceeds to the process of S8.

  In S8, each presentation device selected in S5 presents the component to be presented by the own device, and ends the process. Speaking in accordance with the above example, the content presentation control unit 103 of the television 100 displays the main video component on the display unit 107, and the component presentation control unit 162 of the tablet terminal 160 displays the second sub-video component on the display unit 107. 163 is displayed. Similarly, the component presentation control unit 152 of the display 150 outputs the audio component from the audio output unit 154 while displaying the first sub-video component on the display unit 153. In addition, the presentation apparatus to which the information for synchronous control was transmitted with the component from the television 100 controls the timing which presents a component based on the information.

  As a result, as shown in the image diagram of FIG. 2, the first sub-picture that the content provider thinks should be viewed on a large screen is displayed on the super-large screen display 150, and the content provider has a portable display at hand. The second sub-picture that should be viewed using the terminal is displayed on the tablet terminal 160. In addition, the main video that the content provider should view on a medium-sized screen is displayed on the popular television 100.

  As an example, “a case where the content includes three display components of the main video, the first sub-video, and the second sub-video, and the level value of each display component is described in the content metadata” is taken as an example. Explained. In the above example, the display component is displayed on each of the three presentation devices, but there are cases where the display component is displayed only on one or two presentation devices. For example, in the case where “the content includes only the BML display component and“ 1 ”is described as the level value of the display component in the content metadata”, the BML display component is displayed on the tablet terminal 160. The display component is not displayed on the television 100 and the display 150.

(Advantages of TV 100)
As described above, in the television 100, the content receiving unit 101 receives content including one or more display components displayed on the display unit 107 from the distribution device 200.

  In addition to the content, the content receiving unit 101 is a level value indicating a class relating to the recommended viewing distance determined by the content provider for each of the one or more display components, and the recommended viewing distance of the display component is The metadata indicating the level value indicating the class to which it belongs is received from the distribution apparatus 200.

  Then, the content presentation control unit 103 of the television 100 displays the components included in the content received by the content reception unit 101 on the three display devices of the television 100, the display 150, and the tablet terminal 160 or a part of the display devices. Let

  Specifically, the content presentation control unit 103 determines, for each of the one or more display components, the class to which the manufacturer recommended viewing distance belongs is the recommended view of the display component based on the level value of the display component. The display device closest to the class to which the distance belongs is selected from the three display devices, and the display component is displayed on the selected display device.

  With the configuration described above, the television 100 is a display device that displays a component, and a display device whose manufacturer's recommended viewing distance is relatively close to the recommended viewing distance determined by the content provider for the component is a popular television 100. The user selects from among the super large screen display 150 and the tablet terminal 160. For example, a display component that is preferable to be viewed on a display device with a small screen size at hand is displayed on the tablet terminal 160, and a display component that is preferable to be viewed on a display device with a large screen size that is located away from the user is an ultra-large screen display. 150.

  Therefore, the television 100 has an effect that the component included in the content can be displayed on an appropriate display device corresponding to the component among the popular television 100, the super large screen display 150, and the tablet terminal 160.

(Modification of Distribution Device 200 and Display System 1 According to Embodiment 1)
Modification examples of the distribution device 200 and the display system 1 will be described below. In the following, the distribution device and the display system according to the modification will be described with a focus on differences from the distribution device 200 and the display system 1.

  First, the metadata related to content recorded in the metadata storage unit included in the distribution device includes not only the level value of the target component but also the media type indicating the type of the target component for each component constituting the content. ing. For example, when the content is composed of six components (components A to F), the metadata includes, for example, information as shown in a table format in FIG.

  In addition, the system configuration information recorded in the system configuration information storage unit included in the popular television (shown as “presentation device A” in the drawing) according to the modified example includes each presentation device registered in the popular television. In addition to information indicating the recommended viewing distance of the presentation device, information indicating the type (media type) of the component that can be presented by the presentation device is included. For example, system configuration information as illustrated in FIG. 7 is recorded in the system configuration information storage unit.

  Based on the metadata transmitted from the distribution device and the system configuration information recorded in the own device, the popular television determines a presentation device that presents the component for each component constituting the content transmitted from the distribution device. The algorithm will be described in detail below with reference to FIG. FIG. 8 is a flowchart illustrating an operation in which the popular television determines a presentation device that presents a component for each component. In the following, the algorithm will be described by taking as an example a case where the metadata transmitted from the distribution apparatus is the metadata shown in FIG.

  First, after receiving the content, the content receiver of the popular television receives the metadata (specifically, the level value and the media type for each component) from the distribution device and supplies it to the component separator. (S11).

  After S11, the component separation unit separates each component from the content supplied from the content reception unit, and supplies the target component, the level value of the target component, and the media type to the content presentation control unit for each component (S12). ).

  After S12, the content presentation control unit refers to the system configuration information, and for each presentation device registered in the popular television, information indicating the type of component that can be presented by the presentation device and the recommendation of the presentation device Information indicating the viewing distance is acquired (S13).

  After S13, the content presentation control unit divides the maximum value of the recommended viewing distance acquired in S13 by the maximum value of the level value acquired in S12 (S14). A value obtained by this division is referred to as “unit level distance value” in the description of the first embodiment.

  For example, when the metadata received from the distribution apparatus is the metadata of FIG. 6 and the system configuration information recorded on the popular television is the system configuration information of FIG. 7, the maximum recommended viewing distance is set. “760 mm” obtained by dividing a certain “3800 mm” by “5” which is the maximum level value is set as a unit level distance value. Further, for example, the same applies to the case where the metadata received from the distribution apparatus is the metadata in FIG. 6 and the system configuration information is the system configuration information in FIG.

  After S14, the content presentation control unit multiplies the level value of the target component by the unit level distance value for each component (S15). The content presentation control unit sets the value obtained by this multiplication as the maximum component recommended viewing distance. In the case of the former example, the maximum value of the component recommended viewing distance of each component is a value as shown in FIG. 10, and in the case of the latter example, the maximum value of the component recommended viewing distance of each component is a figure. The value is as shown in FIG.

  After S15, the content presentation control unit performs the following processing of S16 and S17 or S18 for each component based on the information acquired in S12.

  That is, in S16, the content presentation control unit is a presentation device capable of presenting a component of the type represented by the media type of the target component, and the recommended viewing distance is less than or equal to the maximum recommended component viewing distance of the target component. It is determined whether one or more devices are registered in the popular television.

  When it is determined that one or more such presentation devices (referred to as “presentation devices that satisfy the conditions” in FIGS. 8, 10, and 11) are registered, the content presentation control unit displays one or more presentation devices. The presentation device with the maximum recommended viewing distance is selected from the devices, and the selected presentation device is determined as the device that presents the target component (S17).

  On the other hand, if it is determined that no such presentation device has been registered, the content presentation control unit recommends the recommended view from all presentation devices that can present the component of the type represented by the media type of the target component. The presentation device with the shortest distance is selected, and the selected presentation device is determined as a device that presents the target component (S18).

As a result of the above processing, for each component, the presentation device that presents the component is determined. In the former example, the presentation device that presents the component is determined as illustrated in FIG. In this example, it is determined as shown in FIG.
That is, each component is presented on a presentation device whose recommended viewing distance defined by the manufacturer is close to the recommended viewing distance of the component.

  Further, in this modification, the content provider does not have to describe the level value in accordance with a predetermined rule when describing the level value in the metadata. That is, the content provider provides the user with a short recommended viewing distance (that is, a small screen size (in many cases, the housing is small and the speaker attached to the housing is a small output type)) If you want to watch video or audio through, enter a relatively small level value and a long recommended viewing distance (ie, a large screen size (large casing, often attached to the casing) The speaker is a high-output type))) When it is desired to appreciate video or audio through the presentation device, a relatively large level value may be described. Even in such a case, the television according to the present modification can cause each component to be presented on an optimum presentation device according to the configuration of the display system.

[Embodiment 2]
A display system according to another embodiment of the present invention will be described below with reference to FIGS.

  Similarly to the display system 1 according to the first embodiment, the display system according to the present embodiment is a display system that displays content distributed from a distribution device using a multi-screen broadcasting technique. In addition, the display system according to the present embodiment also serves as a popular television and a presentation device that also serve as a reception device, a presentation device (display device), and a presentation control device (display control device) that controls other presentation devices. It includes a tablet terminal and a super large screen display.

  On the other hand, the display system according to the present embodiment measures the distance from the position of each presentation device to the position where the user is present, and for each display component included in the content, the distance measurement value (hereinafter referred to as “user distance value” “ The display system is different from the display system 1 in that the display component is displayed on the display device closest to the class to which the recommended viewing distance of the display component belongs. That is, unlike the display system 1, the display system according to the present embodiment determines a presentation device that displays a display component regardless of the manufacturer's recommended viewing distance of each presentation device.

  Furthermore, the content distributed in the present embodiment includes user components related to the content in addition to the audio, main video, and two sub-video components. Here, the user component is a component that includes information on a viewer who has browsed content in the past, and a text component that includes a viewer's comment uploaded to the distribution device by the viewer is an example.

  Hereinafter, the configuration of the distribution device and the display system according to the present embodiment, and the arrangement of each device of the display system will be described with reference to FIG. FIG. 14 is a block diagram illustrating the configuration of the display system 1 ′ and the distribution device 200 ′ according to the present embodiment.

  As shown in FIG. 14, the display system 1 ′ includes a popular television 100 ′, a super large screen display 150 ′, and a tablet terminal 160 ′. The popular television 100 ′ mediates a broadcast wave by the distribution device 200 ′. The content transmitted as is received. Similarly to the display system 1, the tablet terminal 160 ′ is at the user's hand, and the positional relationship between the popular television 100 ′ and the super large screen display 150 ′ is the same as that of the display system 1.

(Distribution apparatus 200 ′)
The distribution apparatus 200 ′ includes a content storage unit 201, a metadata storage unit 202, a content transmission unit 203, and a user component reception unit 204.

  The content storage unit 201 stores content including main video, two sub-videos (first sub-video and second sub-video), audio, and text components. The text component here is a component including a viewer's comment given as an example of the user component.

  Metadata related to content is recorded in the metadata storage unit 202. This metadata is shown in FIG. 3A except that an asset tag indicating a level value of a text component <asset xml: id = “text” view_dist_level = “1”> is described below the asset tag. Is the same as the metadata.

  The content transmission unit 203 reads the content from the content storage unit 201, reads the metadata related to the content from the metadata storage unit 202, and distributes the content on the broadcast wave together with the metadata.

  The user component receiving unit 204 is a communication interface that accepts an upload from the user of the above-described text component that is a user component.

(Popular TV 100 ')
The popular television 100 ′ includes a content reception unit 101, a component separation unit 102, a content presentation control unit 103 ′, an information input unit 104, a system configuration information storage unit 105 ′, a component transmission unit 106, a display unit 107, and an audio output unit 108. A user distance measuring unit 109, a user distance information receiving unit 110, and a user information storage unit 111.

  The user distance measurement unit 109 includes an imaging sensor, recognizes the user using a face image detection technique, and measures the distance to the recognized user. The user distance measurement unit 109 generates a distance measurement value (user distance value, actual distance value) and supplies it to the content presentation control unit 103 ′. Note that the user distance measurement unit 109 is provided in the immediate vicinity of the display unit 107, and the imaging sensor is directed in the forward direction of the display unit.

  The user distance information receiving unit 110 is a communication interface for receiving a user distance value from each presentation device registered in the television 100 ′.

  In the user information storage unit 111 (corresponding to the “storage unit” in the claims), user information of each user registered in the television 100 ′ is recorded. Specifically, as shown in FIG. 15, each user's face image and visual acuity information are recorded in the user information storage unit 111 as a part of the user information. Is also recorded as part of the user information.

  The content presentation control unit 103 ′ acquires each user distance value through the user distance measurement unit 109 and the user distance information reception unit 110, and for each i, which presentation component belongs to the class of which the recommended viewing distance is the level value i. Decide whether to display on the device.

  Specifically, among the user distance values, the user distance value to which the class to which the user distance value belongs is closest to the class of the level value i, and the presentation device that generated the user distance value is designated as the class of the level value i. Is determined as a device to be displayed. In addition, when the user distance value closest to the class of the level value i is generated and there are two or more presentation devices, the presentation device having the largest screen size should be displayed with the component belonging to the class of the level value i. Determine as a device. Then, the level value i is recorded in the system configuration information storage unit 105 ′ as part of the system configuration information related to the presentation device. When the level value has already been recorded as part of the system configuration information related to the presentation device, the content presentation control unit 103 ′ updates the level value to i.

  For each component included in the content, the content presentation control unit 103 ′ indicates the device that should present the component, the metadata regarding the content, and the system configuration of each presentation device recorded in the system configuration information storage unit 105 ′. And based on the information. Specifically, the level value of each component described in the metadata is referred to, and the component in which the level value i is described is presented to a presentation device that includes the level value i as part of the system configuration information. Decide that.

  When the device to present the component is a presentation device registered in the popular television 100 ′, the content presentation control unit 103 ′ transmits the component to the device to be presented via the component transmission unit 106. . In the case where the device to present the component is the popular television 100 ′, when the component is a display component, the component is displayed on the display unit 107, and when the component is an audio component, the component is audio. Output from the output unit 108.

  In the system configuration information storage unit 105 ′, the system configuration information of the television 100 ′ itself and the system configuration information of other presentation devices registered in the television 100 are recorded. The user distance value and the most recently acquired user distance value are recorded. Specifically, system configuration information of three presentation devices including a television 100 ′, a display 150 ′, and a tablet terminal 160 ′ is recorded in the system configuration information storage unit 105 ′.

  Since the content receiving unit 101, the component separation unit 102, the information input unit 104, the component transmission unit 106, the display unit 107, and the audio output unit 108 have already been described in the first embodiment, description thereof is omitted here.

(Super large screen display 150 ')
The super-large screen display 150 ′ includes a component reception unit 151, a component presentation control unit 152, a display unit 153, an audio output unit 154, a user distance measurement unit 155, and a user distance information transmission unit 156.

  The user distance measurement unit 155 includes an imaging sensor, recognizes the user using a face image detection technique, and measures the distance to the recognized user. The user distance measurement unit 155 generates a distance measurement value (user distance value, actual measurement distance value) and supplies it to the user distance information transmission unit 156. The user distance measuring unit 155 is provided in the immediate vicinity of the display unit 153, and the image sensor is directed in the front direction of the display unit.

  The user distance information transmission unit 156 is a communication interface for transmitting the user measurement value supplied from the user distance measurement unit 155 to the television 100 ′.

  Note that the component reception unit 151, the component presentation control unit 152, the display unit 153, and the audio output unit 154 have been described in the first embodiment, and thus description thereof is omitted here.

(Tablet terminal 160 ')
The tablet terminal 160 ′ includes a component reception unit 161, a component presentation control unit 162, a display unit 163, an audio output unit 164, a user distance measurement unit 165, a user distance information transmission unit 166, an information input unit 167, and a user component transmission unit 168. I have.

  The user distance measuring unit 165 includes an imaging sensor, recognizes the user using a face image detection technique, and measures the distance to the recognized user. The user distance measurement unit 165 generates a distance measurement value (user distance value, actual measurement distance value) and supplies it to the user distance information transmission unit 166. Note that the user distance measuring unit 165 is provided in the immediate vicinity of the display unit 163, and the imaging sensor is directed in the forward direction of the display unit.

  The user distance information transmission unit 166 is a communication interface for transmitting the user measurement value supplied from the user distance measurement unit 165 to the television 100 ′.

  The information input unit 167 is an input device provided for allowing the user to input information. Using the information input unit 167, the user can input his / her comments regarding the content being viewed.

  The user component transmission unit 168 is a communication interface for transmitting a text component including a user comment input through the information input unit 167 to the distribution apparatus 200 ′ via the Internet 500.

  Heretofore, the configurations of the distribution device and the display system according to the present embodiment, and the arrangement of each device of the display system have been described.

  Next, an operation in which the display system 1 ′ according to the present embodiment receives content from the distribution device 200 ′ and reproduces each component will be described with reference to FIGS. 17 and 18. FIG. 17 is a diagram schematically showing a usage image of the display system 1 ′, and FIG. 18 is a flowchart showing the operation of the display system 1 ′.

  As illustrated in FIG. 18, the content receiving unit 101 of the television 100 ′ receives the content and metadata regarding the content, and supplies the received content to the component separating unit 102 (S 21).

  The component separation unit 102 separates each component from the content supplied from the content receiving unit 101, and supplies each component together with metadata to the content presentation control unit 103 '(S22).

  The content presentation control unit 103 ′ refers to the metadata supplied from the component separation unit 102 and confirms the class (level value) related to the recommended viewing distance of each component (S 23).

  After S23, the content presentation control unit 103 'acquires system configuration information of each presentation device from the system configuration information storage unit 105' (S24). In S25, the content presentation control unit 103 ′ refers to the user distance value (default value) that is a part of the system configuration information for each presentation device, and updates the system configuration information by performing the processing described below. .

  That is, for each i, the content presentation control unit 103 ′ specifies the user distance value whose class is closest to the class of the level value i among the referred user distance values, and generates the user distance value. Is determined as a device to display a component belonging to the class of the level value i. Further, the level value i is recorded as a part of the system configuration information related to the presentation device that is determined to display the component belonging to the class of the level value i. As the user distance values (default values) of the television 100 ′, the display 150 ′, and the tablet terminal 160 ′, the values “1.5 m”, “3.8 m”, and “30 cm” are stored in the system configuration information storage unit 105 ′. When the process of S25 is performed in the recorded state, the system configuration information is updated as shown in FIG.

  After S25, the content presentation control unit 103 'determines whether or not the display system 1' includes a presentation device other than the reception device (television 100 '). That is, the content presentation control unit 103 'determines whether one or more presentation devices are registered in the television 100' (S26).

  Since the display 150 ′ and the tablet terminal 160 ′ are registered in the television 100 ′, the content presentation control unit 103 ′ determines that one or more presentation devices are registered in the television 100 (YES in S26). , Go to S27. When it is determined that no presentation device is registered in the television 100 ′ (NO in S26), the content presentation control unit 103 ′ determines to present all components on the television 100 ′ ( The process proceeds to S28) and S29.

  In S27, the content presentation control unit 103 ′ selects a presentation device that should present a component for each component based on the system configuration information of each presentation device recorded in the system configuration information storage unit 105 ′. Select from. Specifically, for each i, the content presentation control unit 103 ′ refers to the level value of each component described in the metadata for each i, and determines the component in which the level value i is described as the level value i. It is determined to be presented to the presentation device included as part of the configuration information.

  After completing the process of S27, the content presentation control unit 103 'proceeds to the process of S29. In S29, the content presentation control unit 103 'requests the user distance measurement unit 109 and each presentation device to transmit a user distance value, and acquires the user distance value generated by each presentation device. Then, for each i, the content presentation control unit 103 ′ specifies the user distance value whose class is closest to the class whose level value is i among the acquired user distance values, and generates the user distance value. Is determined as a device to display a component belonging to the class of the level value i. Further, for each presentation device, the content presentation control unit 103 ′ displays the user distance value generated by the presentation device and the level value of the component to be displayed by the presentation device, as part of the system configuration information related to the presentation device. Record as.

  Take the case where the user is 3 meters behind the seat at the time of S29. In this case, the content presentation control unit 103 ′ receives user distance values “4.5 m”, “6.8 m”, and “30 cm” from the user distance measurement unit 109, the display 150 ′, and the tablet terminal 160 ′, respectively. Will get. Then, the device that should display the component that belongs to the class of the level value 1 or 2 is determined as the tablet terminal 160 ′, and the device that should display the component that belongs to the class of the level value 4 or 5 is determined as the display 150 ′. The component belonging to the class of value 3 is determined as the television 100 ′. As a result, the system configuration information in FIG. 16A is updated as shown in FIG.

  Based on the result of the processing in S29, the content presentation control unit 103 ′ determines whether or not a presentation device that should present a component belonging to the class for any one or more classes has been switched to another presentation device. (S30).

  When the content presentation control unit 103 ′ determines in S <b> 30 that “switched” (YES in S <b> 30), the process returns to the process of S <b> 26. On the other hand, if it is determined in S30 that “it has not been switched” (NO in S30), the content presentation control unit 103 'proceeds to the process of S31.

  In S31, the content presentation control unit 103 ′ presents a component for each component based on the system configuration information of each presentation device recorded in the system configuration information storage unit 105 ′ in the same manner as the process in S27. A presentation device to be selected is selected from each presentation device. Then, if the presentation device that should present the component is other than the television 100 ′, the content presentation control unit 103 ′ transmits the component to the presentation device.

  In S32, the presentation device that has received the component from the television 100 'reproduces the component. In addition, when there is a display component to be displayed on the own device, the television 100 ′ displays the display component on the display unit 107, and when there is an audio component to be output from the own device, the audio component is output as audio. Output from the unit 108.

  After a lapse of a certain period from the end of the process of S32, the content presentation control unit 103 'determines whether or not the content reproduction ends (S33). If the content presentation control unit 103 ′ determines that the reproduction of the content has not yet ended (NO in S33), the process returns to S29. If the content presentation control unit 103 ′ determines that the reproduction of the content has ended (YES in S33), the process Exit.

(Advantages of TV 100 ')
As described above, the content presentation control unit 103 ′ of the popular television 100 ′ includes a display unit and a user who display components on the display device from the display devices of the television 100 ′ itself, the display 150 ′, and the tablet terminal 160 ′. Get a measurement of the distance between.

  For each of the one or more display components, the content presentation control unit 103 ′ refers to the level value of the display component, and the display device that is the acquisition destination of the measurement value belonging to the class closest to the class indicated by the level value Is selected from the three display devices, and the component is displayed on the selected display device.

  With the above-described configuration, the popular television 100 ′ displays the main video on the display unit 107 when the user is in a seat separated from the popular television 100 ′ by the recommended viewing distance, as shown in the image diagram of FIG. When the user is 3 m behind the seat (a position far away from the popular television 100 ′), the tablet terminal 160 may display the main video together with the second sub-video on the tablet terminal 160 at the user's hand. To control.

  Therefore, the popular television 100 ′ can show the main video to the user through an optimal display device according to the place where the user is.

  Further, the popular television 100 ′ controls the tablet terminal 160 ′ so that the text component is displayed on the tablet terminal 160 ′ when the user is in a seat separated from the popular television 100 ′ by the recommended viewing distance. The text component is displayed on the television 100 'when it is near the type television 100'. Therefore, a user who has a weak visual acuity and has difficulty in reading the characters displayed on the tablet terminal 160 ′ can easily read the characters just by approaching the television 100 ′.

(About user components)
An example in which content including main video, two sub-videos (first sub-video and second sub-video), audio and text components is recorded in the content storage unit 201, and only the text component is a user component. Although the present embodiment has been described by way of example, it goes without saying that the present invention is not limited to this.

  That is, the content includes a voice component representing the user's comment, a user's face, or the like as a subject as a user component, together with a text component representing the user's comment, or instead of such a text component. Video components and the like may be included. In this case, the user component transmission unit 168 transmits user components such as an audio component generated through a microphone (not shown) and an image component generated through a camera (not shown) to the Internet 500. To the distribution device 200 ′.

(About user distance measuring units 109, 155, and 165)
Each user distance measurement unit may use any measurement technique as long as it can measure the distance to the user. For example, the user distance measuring unit performs grid irradiation, distortion measurement, and three-dimensional space recognition (gesture recognition) using radar and infrared rays, so that the distance to the user (for example, between the user's face) It may be a distance sensor that measures a face distance, which is a distance. Alternatively, the user distance measuring unit measures the distance from the user based on the amount of deviation between the face image portion in the left-eye image and the face image portion in the right-eye image captured by the binocular stereoscopic camera. It may be.

  Or a user distance measurement part may measure the distance between users by infrared distance measurement using UWB. Specifically, a pulse signal having a short pulse width (for example, 1 ns or less) is continuously transmitted to the user for a relatively long time, and the time from transmission of each pulse signal to reception by reflection is measured. You may measure the distance between.

  Alternatively, the user distance measurement unit may include an optical position sensor that includes an infrared light emitting device and an infrared detection array. In this case, it is desirable that the optical position sensor is configured to be able to automatically control the position and orientation so as to follow the user.

(Modification of Distribution Device 200 ′ and Display System 1 ′ According to Embodiment 2)
Modification examples of the distribution device 200 ′ and the display system 1 ′ will be described below. In the following, the distribution device and the display system according to the modification will be described with a focus on differences from the distribution device 200 ′ and the display system 1 ′.

  As in the modified example of the distribution apparatus 200 and the display system 1 according to the first embodiment, the content-related metadata recorded in the metadata storage unit included in the distribution apparatus is configured as shown in FIG. Each component to be processed includes not only the level value of the target component but also a media type indicating the type of the target component.

  In addition, the system configuration information recorded in the system configuration information storage unit included in the popular television (shown as “presentation device A” in the drawing) according to the modified example includes each presentation device registered in the popular television. In addition to the information regarding the recommended viewing distance and the actual viewing distance of the presenting device, information indicating the type (media type) of the component that can be presented by the presenting device is included. For example, system configuration information as illustrated in FIG. 19 is recorded in the system configuration information storage unit.

  Based on the metadata transmitted from the distribution device and the system configuration information recorded in the own device, the popular television determines a presentation device that presents the component for each component constituting the content transmitted from the distribution device. However, the algorithm will be described in detail below with reference to FIG. FIG. 20 is a flowchart illustrating an operation in which the popular television determines a presentation device that presents a component for each component. In the following, the algorithm will be described by taking as an example a case where the metadata transmitted from the distribution apparatus is the metadata shown in FIG.

  First, after receiving the content, the content receiver of the popular television receives the metadata (specifically, the level value and the media type for each component) from the distribution device and supplies it to the component separator. (S41).

After S41, the component separation unit separates each component from the content supplied from the content reception unit, and supplies the target component, the level value of the target component, and the media type to the content presentation control unit for each component (S
42).

  After S42, the content presentation control unit refers to the system configuration information, and for each presentation device registered in the popular television, information indicating the type of component that can be presented by the presentation device and the recommendation of the presentation device Information indicating the viewing distance and information indicating the actual viewing distance of the presentation device are acquired (S43).

  After S43, the content presentation control unit divides the maximum value of the actually measured viewing distance acquired in S43 by the maximum value of the level value acquired in S12 (S44). The value obtained by this division is referred to as “unit level distance value” in the description of the second embodiment.

  For example, when the metadata received from the distribution apparatus is the metadata of FIG. 6 and the system configuration information recorded on the popular television is the system configuration information of FIG. “1360 mm” obtained by dividing a certain “6800 mm” by “5” which is the maximum level value is set as a unit level distance value. Further, for example, when the metadata received from the distribution apparatus is the metadata of FIG. 6 and the system configuration information is the system configuration information of FIG. 21, the level of “2800 mm” that is the maximum value of the actually measured viewing distance is set. “560 mm” divided by “5” which is the maximum value is set as the unit level distance value.

  After S44, the content presentation control unit multiplies the level value of the target component by the unit level distance value for each component (S45). The content presentation control unit sets the value obtained by this multiplication as the maximum component recommended viewing distance. In the case of the former example described above, the maximum value of the component recommended viewing distance of each component is a value as shown in FIG. 22, and in the case of the latter example, the maximum value of the component recommended viewing distance of each component is a figure. The value is as shown in FIG.

  After S45, the content presentation control unit performs the following processing of S46 and S47 or S48 for each component based on the information acquired in S42.

  That is, in S46, the content presentation control unit is a presentation device capable of presenting a component of the type represented by the media type of the target component, and the actual viewing distance is less than the maximum component recommended viewing distance of the target component. It is determined whether one or more devices are registered in the popular television.

  When it is determined that one or more such presentation devices (referred to as “presentation devices satisfying conditions” in FIGS. 20, 22, and 23) are registered, the content presentation control unit displays one or more presentation devices. A presentation device with the maximum measured viewing distance is selected from the devices, and the selected presentation device is determined as a device that presents the target component (S47).

  On the other hand, when it is determined that no such presentation device is registered, the content presentation control unit performs a measurement view from all presentation devices that can present the component of the type represented by the media type of the target component. The presentation device with the shortest distance is selected, and the selected presentation device is determined as a device that presents the target component (S48).

  As a result of the above processing, for each component, the presentation device that presents the component is determined. In the former example, the presentation device that presents the component is determined as shown in FIG. In this example, it is determined as shown in FIG. That is, each component is presented on the presentation device located at a position away from the user by a distance close to the recommended viewing distance of the component.

  Further, in this modification, the content provider does not have to describe the level value in accordance with a predetermined rule when describing the level value in the metadata. That is, when a content provider wants a user to view video or audio through a presentation device near the user, the content provider describes a relatively small level value and is located far from the user. A relatively large level value may be described when it is desired to view the video or audio through. Even in such a case, the television according to the present modification can cause each component to be presented to the optimum presentation device according to the configuration of the display system and the position where the user is present.

(Appendix 1)
In the television 100 ′, the content presentation control unit 103 ′ accesses the user information storage unit 111 and searches for user information including the face image based on the feature amount of the face image detected by the user distance measurement unit 109. It may be configured. Then, the content presentation control unit 103 ′ refers to the visual acuity information included in the user information when such user information is hit as a result of the search, and displays the display component according to the visual acuity strength represented by the visual acuity information. You may be comprised so that control may be performed.

  Specifically, the content presentation control unit 103 ′ changes the size of the display area in which the video component on the display screen (corresponding to “displayable area” in the claims) is displayed according to the strength of vision. May be. That is, the content presentation control unit 103 ′ reduces the size of the display area from the default when the visual acuity is stronger than the predetermined reference, and reduces the display area size from the default when the visual acuity is weaker than the predetermined reference. May also be enlarged. For example, the content presentation control unit 103 ′ (corresponding to “identification means” in the claims) hits the user information including the face image of the user A (that is, the user who uses the television 100 ′ has 1 (When it is identified that the user A has a visual acuity of .5), the size of the display area may be reduced from the default. Alternatively, when the user information including the face image of the user C is hit (that is, when the user using the television 100 ′ identifies the user C having a visual acuity of 0.1), the display area is set as the default. You may enlarge more.

  Or content presentation control part 103 'may change the character size of the text displayed, when displaying a text component according to the strength of visual acuity. That is, the content presentation control unit 103 ′ displays the text in a size smaller than the default when the visual acuity is stronger than the predetermined reference, and displays the text in a size larger than the default when the visual acuity is weaker than the predetermined reference. May be.

  With the above configuration, even a person with low vision can browse the display component without any difficulty. Therefore, the television 100 ′ has an effect of making it easy for a person with low vision to view the display component.

  Note that the visual acuity information of each user may be input through the information input unit 104, but the television 100 ′ may include a measuring unit that measures the visual acuity of the user, and the visual acuity measured by the measuring unit. May be recorded in the user information storage unit 111. In this case, the television 100 ′ may be configured to periodically update the vision information of each user. That is, the measuring means measures the user's visual acuity again when a certain period or more has elapsed from the time when the user's visual acuity was last measured, and obtains the user's visual acuity information recorded in the user information storage unit 111. You may update with the obtained visual acuity information.

(Appendix 2)
In the television 100 ′, the content presentation control unit 103 ′ changes the size of the display area in which the video component on the display screen is displayed according to the distance from the user measured by the user distance measurement unit 109. May be. That is, the content presentation control unit 103 ′ increases the size of the display area in stages as the distance to the user measured by the user distance measurement unit 109 increases, You may reduce the size of a display area in steps as the distance between them becomes short.

  Or content presentation control part 103 'may change the character size of the text displayed, when displaying a text component according to the size of the distance between users which user distance measurement part 109 measured. That is, the content presentation control unit 103 ′ increases the text display size stepwise as the distance to the user measured by the user distance measurement unit 109 increases, and the user distance measurement unit 109 measures the user. The display size of the text may be reduced stepwise as the distance between them decreases.

(Appendix 3)
When adopting a distance measuring device that measures the face distance, which is the distance to the user's face, as the user distance measuring unit 109, the television 100 ′ may be configured as follows.

  That is, in the television 100 ′, the content presentation control unit 103 ′ gradually reduces the size of the display area as the face distance measured by the user distance measurement unit 109 increases, and the face distance measured by the user distance measurement unit 109. The size of the display area may be increased step by step as the length becomes shorter.

  Alternatively, the content presentation control unit 103 ′ increases the character size of the text to be displayed when displaying the text component, and gradually increases the text display size (character size) as the face distance measured by the user distance measurement unit 109 increases. The display size (character size) of the text may be increased stepwise as the face distance measured by the user distance measuring unit 109 becomes shorter.

  With the above configuration, a viewer of a hospital bed or a viewer with a disability can adjust the display of the display component so that browsing can be facilitated by simply moving his / her face back and forth while staying there. Accordingly, the television 100 ′ has an effect of making it easy for a viewer of a hospital bed or a person with a disability to view the display component.

(Appendix 4)
The content presentation control unit 103 ′ displays text to be displayed when a text component is displayed based on both the distance between the user measured by the user distance measurement unit 109 and the strength of the user's visual acuity. You may adjust the character size.

  Specifically, as shown in FIG. 26, data indicating the relationship between the distance from the position where the character is written and the visual acuity necessary for identifying the character is stored in a storage unit (not shown). The display size of the text may be adjusted using this data.

  For example, when the user A whose visual acuity is 1.5 is in a seat 1.5 m away from the television 100 ′, the content presentation control unit 103 ′ calculates the display size of the text displayed on the display unit 107 as follows: May be. That is, based on the fact that the user A can read characters of 75 mm or more from a distance of 7.5 m, the minimum value of the display size of the text displayed on the display unit 107 is about 4.4 points (= 75 mm × 1500 mm ÷ 7500 mm × It may be set to 25.4 ÷ 72). Similarly, the content presentation control unit 103 ′ sets the minimum value of the text display size to about 8.8 points when the user B whose visual acuity is 0.7 is in the seat from the television 100 ′, and the visual acuity When the user C who is 0.1 is in the seat from the television 100 ′, the minimum value of the text display size may be about 53 points.

(Appendix 5)
The user information storage unit 111 may record a visual acuity value for naked eye vision and a visual acuity value for corrected visual acuity as visual acuity information. That is, as shown in FIG. 27, for a user (user C) who corrects his or her visual acuity with glasses, the visual acuity value for naked eye vision and the visual acuity value for corrected visual acuity are recorded, and the user who does not correct visual acuity (user A and user A) For B), only the visual acuity value of the naked eye visual acuity may be recorded.

  The content presentation control unit 103 ′ accesses the user information storage unit 111, specifies the user based on the face image detected by the user distance measurement unit 109, and determines whether the user is wearing glasses. Also good. Then, the content presentation control unit 103 ′ determines that the specified user is wearing glasses, and if the corrected visual acuity value is recorded as the user information of the user, the corrected visual acuity value The display of the display component may be controlled based on the above.

(Appendix 6)
In the television 100 ′, the content presentation control unit 103 ′ changes the audio output level of the audio component output from the audio output unit 108 according to the magnitude of the distance from the user measured by the user distance measurement unit 109. Also good. That is, the content presentation control unit 103 ′ increases the audio output level in stages as the distance from the user measured by the user distance measuring unit 109 increases, and the distance from the user measured by the user distance measuring unit 109 The sound output level may be decreased step by step as becomes shorter.

  Further, the television 100 ′ is configured to be capable of measuring the user's hearing level in each of the low sound range (for example, 500 Hz), medium sound range (for example, 1 kHz), and high sound range (for example, 4 kHz) within the audible band. May be. In this case, the content presentation control unit 103 ′ may increase the sound output level in a range where the user's hearing level is weaker than a predetermined reference value.

  Further, the television 100 ′ is configured to be able to measure the ambient humidity and temperature, and records information on the attenuation rate of the sound pressure corresponding to the humidity and temperature shown in FIG. 28 in a storage unit (not shown). You may do it. In this case, the content presentation control unit 103 ′ may derive the attenuation rate of the low range, the mid range, and the high range within the audible range at the time of measurement based on the measured humidity and temperature and the above information. Then, the content presentation control unit 103 ′ may increase the sound output level of each sound range by a ratio corresponding to the magnitude of the attenuation rate of the sound range.

(Appendix 7)
As described above, a portable display terminal such as a smartphone or a tablet terminal and a stationary display device such as a television or a display can be employed as the presentation device, but is recorded in the system configuration information storage unit 105 of the television 100. In the system configuration information of each presentation device, type information indicating the type of each presentation device (either a portable display terminal, a stationary display device, or a projector) is recorded instead of the information related to the manufacturer's recommended viewing distance. May be.

  And the content presentation control part 103 selects a tablet terminal or a smart phone as a presentation apparatus which presents the component of the level value 1 based on the classification information of each presentation apparatus, and television as a presentation apparatus which presents the component of the level value 2 Alternatively, a projector may be selected as a presentation device that selects a display and presents a component having a level value of 3 or more.

  That is, when the level value of the component to be presented is less than 2 (first threshold value), the component is displayed on the portable display terminal, and the level value of the component to be presented is 2 or more and 3 (second threshold value). The component may be displayed on the television or the display if it is less than the level, and the component may be displayed on the projector if the level value of the component to be presented is 3 or more.

  In addition, among the components included in the content, a user component to which a level value 1 is given by the content provider as it should be displayed on the portable display terminal (that is, a text component including a comment of the content viewer) May be included.

  When a projector is used as the presentation device, a distance measuring device that measures the distance to the user is provided beside the screen at a position away from the projector, and the distance measuring device provides data indicating the distance measurement value. You may transmit to a projector by wired communication or wireless communication.

(Appendix 8)
In each of the above embodiments, the user inputs the system configuration information of the presentation apparatus registered using the information input unit 104, but the present invention is not limited to this. For example, when each presentation device is configured to use Bluetooth communication for communication with other presentation devices, the television 100 or 100 ′ may register the presentation device by pairing. That is, the television 100 or 100 ′ may record the system configuration information of the presentation device obtained at the time of pairing in the system configuration information storage unit 105 or 105 ′.

  Further, when each presentation device is configured to use Wi-Fi (registered trademark) communication for communication with other presentation devices and supports the UPnP (registered trademark) function, the television 100 Alternatively, 100 ′ may acquire the system configuration information of each presentation device by the UPnP function and record it in the system configuration information storage unit 105 or 105 ′. Furthermore, when each presentation device is configured to use HDMI communication for communication with other presentation devices, the television 100 or 100 ′ receives the EDID data in which the system configuration information is described. And the system configuration information may be recorded in the system configuration information storage unit 105 or 105 ′. Alternatively, the television 100 or 100 ′ may acquire system configuration information of each presentation device using a wired communication or wireless communication technique such as UWB, IEEE 1394, or USB.

  The televisions 100 and 100 ′ may periodically acquire the system configuration information of the presentation device from each registered presentation device.

  Each presentation device may incorporate a position measurement module (for example, a GPS module) and an orientation measurement module (for example, an electronic compass). Further, the system configuration information may include information such as the address (for example, IP address, MAC address, etc.), product number, shape, performance, position information, and orientation information of each registered presentation device.

(Appendix 9)
Assuming that the user always carries the portable display terminal when viewing the content, each presentation device may be configured as follows.

  That is, each presentation device (including the television 100 ′) including the position measurement module exchanges the position information of the own device with other presentation devices regularly or irregularly by wired communication or wireless communication. The television 100 ′ may select a portable display terminal that should handle the position information as position information representing the position of the user from the registered portable display terminals through the information input unit 104. It may be configured to be able to.

  In this case, the television 100 ′ notifies each presentation device of the address of the mobile display terminal selected by the user. And the user distance measurement part of each presentation apparatus measures the distance between the own apparatus and the portable display terminal from the positional information of the own apparatus and the positional information of the portable display terminal notified of the address from the television 100 ′. To do. Then, the user distance measurement unit 109 supplies the obtained measurement value to the content presentation control unit 103 ′ as a user distance value, and the user distance measurement unit of each presentation device registered in the television 100 ′ is obtained. The measurement value is supplied as a user distance value to the user distance information transmission unit.

  According to the above configuration, for example, even when a user who has viewed a video included in content on the television 100 ′ in the living room moves to the own room away from the living room with the portable display terminal, You can continue to view the video on your mobile display terminal.

  As a result, it is possible to solve the conventional problem that when the user is away from a room with a television that is playing a video, the video cannot be browsed continuously.

(Appendix 10)
In addition to system configuration information and content metadata (configuration information), the television 100 ′ includes each content included in the content based on an arrangement map showing an arrangement relationship of each presentation device in a room where the display system is arranged. You may determine the presentation apparatus which should show a component about a component.

  The arrangement map includes position information indicating the arrangement position of each presentation device in the room.

  The television 100 ′ may have a function for a user to manually create an arrangement map, or may be configured to automatically generate an arrangement map.

  An example of a function for creating manually is a GUI-based arrangement map editing function. When this function is used, the user selects a room image representing a room closest to the room where the display system is arranged from room images of various sizes prepared in advance in a storage unit (not shown). Can be displayed on the map editing screen. Then, the user can arrange various types of icons (for example, an icon imitating a television, an icon imitating a projector, etc.) prepared in advance on the room image on the map editing screen.

  When the user completes the icon arrangement, the television 100 can generate position information based on the size of the room corresponding to the room image selected by the user and the position of each icon arranged on the room image. . Thereby, the television 100 ′ can generate an arrangement map. Moreover, since the television 100 can specify the size of the room from the room image selected by the user, the distance between the two presentation devices can be derived from the coordinate information of the two presentation devices.

  Examples of the method for automatically generating the arrangement map include the following examples.

  That is, the user distance measurement unit of each presentation device generates a captured image with the user as a subject, and the television 100 combines the captured image generated by the own device and the captured image acquired from each presentation device with reference to the user. May be. And the television 100 may derive | lead-out the positional information on each presentation apparatus from the obtained synthesized image. Each presentation device preferably generates a captured image including a left-eye image and a right-eye image as a captured image. This is because the positions of various objects captured in the captured image can be more accurately specified from the captured image, and as a result, the positions of the presentation devices can be more accurately specified.

  Note that the position information measured by the position measurement module of each presentation device may be used as an arrangement map, and a plurality of methods described above may be combined in order to obtain more accurate position information. Further, an IC tag may be attached to each presentation device.

(Appendix 11)
In each of the above embodiments, the television receives the content transmitted on the broadcast wave from the distribution device, but the present invention is not limited to this. That is, the television may receive content from the distribution device by communication. In addition, the distribution device transmits some components included in the content on a broadcast wave and transmits the remaining components by communication, and the television sets all the components transmitted using the hybrid transmission technology in this way. It may be configured to receive.

  In addition, the device that receives content from the distribution device is not limited to the television, and may be another presentation device such as a tablet terminal.

  The tablet terminal 160 may be installed with a remote control application for operating the television 100 as shown in FIG.

  Further, instead of the television 100 having the three functions of the receiving device, the presentation control device, and the presentation device, the present invention is also applied to a set-top box or a stationary game machine having the two roles of the receiving device and the presentation control device. Can be implemented.

(Appendix 12)
The distribution device 200 (200 ′) distributes content to the display system 1 (1 ′) after receiving a login request from the user of the display system 1 (1 ′) using the account information given to the user. It is desirable to be configured as described above.

  Here, it is assumed that a large number of users have built their own display system 1 (1 ′) in their homes, etc., but they log in to the distribution device 200 (200 ′) and receive distribution of the same content. It is desirable that the distribution device 200 (200 ′) and the display system 1 (1 ′) are configured so that the users who are present can communicate with each other about the content. In other words, it is desirable that the distribution apparatus 200 (200 ') and the display system 1 (1') support the social viewing function.

  In this case, data indicating each user's remarks (data separate from each component constituting the content) is in the form of voice, text, or the like in the user's popular television 100 (100 ′) with a microphone (not shown). ) Or the information input unit 104. Then, the popular television 100 (100 ′) uploads the input data to the distribution device 200 (200 ′), and the distribution device 200 (200 ′) views the received data to other users (view the same content). It is desirable to deliver to the display system 1 (1 ′) of a specific user or all users who are doing this. Then, the popular television 100 (100 ′) of the display system 1 (1 ′) that has received the data indicating the statement uses the recommended viewing distance among all the presentation devices constituting the display system 1 (1 ′). Is preferably supplied to the shortest presentation device (that is, the tablet terminal 160 in the first embodiment and the tablet terminal 160 ′ in the second embodiment). And it is desirable for the presentation apparatus which received supply of the data which show a statement to show the data. That is, the tablet terminal 160 (160 ′) outputs the voice represented by the voice data from the voice output unit 164 when the data indicating the voice is voice data, and the text when the data indicating the voice is the text data. It is desirable to display the text represented by the data on the display unit 163.

(Program, storage medium)
Each block of the television 100, 100 ′ may be realized by hardware by a logic circuit formed on an integrated circuit (IC chip), or may be realized by software using a CPU (Central Processing Unit). Also good.

  In the latter case, the televisions 100 and 100 ′ include a CPU that executes instructions of a program that realizes each function, a ROM (Read Only Memory) that stores the program, a RAM (Random Access Memory) that expands the program, and the program And a storage device (recording medium) such as a memory for storing various data. An object of the present invention is a recording medium in which program codes (execution format program, intermediate code program, source program) of a control program for the televisions 100 and 100 ′, which are software for realizing the functions described above, are recorded in a computer-readable manner Can also be achieved by reading the program code recorded on the recording medium and executing it by the computer (or CPU or MPU).

  Examples of the recording medium include tapes such as magnetic tapes and cassette tapes, magnetic disks such as floppy (registered trademark) disks / hard disks, and disks including optical disks such as CD-ROM / MO / MD / DVD / CD-R. IC cards (including memory cards) / optical cards, semiconductor memories such as mask ROM / EPROM / EEPROM (registered trademark) / flash ROM, PLD (Programmable logic device) and FPGA (Field Programmable Gate) Logic circuits such as (Array) can be used.

  The program code may be supplied to the televisions 100 and 100 'via a communication network. The communication network is not particularly limited as long as it can transmit the program code. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication network, and the like can be used. The transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type. For example, even with wired lines such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, and ADSL (Asymmetric Digital Subscriber Line) line, infrared rays such as IrDA and remote control, Bluetooth (registered trademark), IEEE 802.11 wireless, HDR ( It can also be used by radio such as High Data Rate (NFC), Near Field Communication (NFC), Digital Living Network Alliance (DLNA), mobile phone network, satellite line, and digital terrestrial network.

  It should be understood that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is shown not only by the above description but also by the scope of claims for patent, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims for patent.

  The present invention can be suitably applied to a display system that displays a plurality of types of video distributed by multi-screen broadcasting using a plurality of display devices (for example, a television and a smartphone) having different screen sizes. .

1, 1 ′ display system 100, 100 ′ Popular television (display device, display control device)
101 content receiver (first acquisition means, second acquisition means)
102 Component separation unit 103, 103 ′ Content presentation control unit (display control unit, third acquisition unit,
Identification means, output control means)
104 Information input unit 105, 105 ′ System configuration information storage unit 106 Component transmission unit 107 Display unit 108 Audio output unit 109 User distance measurement unit (face distance measurement means)
110 User distance information receiving unit 111 User information storage unit 150, 150 ′ Super large screen display (display device)
160, 160 'tablet terminal (display device, portable display terminal)
151, 161 Component reception unit 152, 162 Component presentation control unit 153, 163 Display unit 154, 164 Audio output unit 155, 165 User distance measurement unit (identification means)
156, 166 User distance information transmission unit 167 Information input unit 168 User component transmission unit 200, 200 ′ Distribution device 201 Content storage unit 202 Metadata storage unit 203 Content transmission unit 204 User component reception unit

Claims (18)

First acquisition means for acquiring content including one or more components displayed on the display unit from the distribution device;
For each of the one or more components, a unique value that is unique for each class related to the recommended viewing distance determined by the content provider and that indicates the class to which the recommended viewing distance of the component belongs is acquired from the distribution device. Second obtaining means for performing,
Display control means for displaying a component included in the content acquired by the first acquisition means on a plurality of display devices that can be controlled by the own device or a part of the display devices;
The display control means selects, for each of the one or more components, a display device on which the component is to be displayed from the plurality of display devices based on the size of the unique value of the component. A display control apparatus, wherein the component is displayed on the display apparatus. Further comprising third acquisition means for acquiring a measured value of a distance between a display unit on which a component is displayed by the display device and a user from each of the plurality of display devices;
The display control means, for each of the one or more components, refers to the unique value of the component, and displays the display device that is the acquisition destination of the measurement value belonging to the class closest to the class indicated by the unique value. The display control apparatus according to claim 1, wherein the component is selected from display devices on the table and the component is displayed on the selected display device. The third acquisition means is configured to periodically or irregularly execute the process of acquiring the measurement value from each of the plurality of display devices,
The display control means is configured to select a display device that displays the component for each of the one or more components each time the third acquisition means executes the process. The display control device according to claim 2. A face distance measuring means for measuring a face distance, which is a distance between a display unit on which a component is displayed by the own device and a user's face;
In the case where the one or more components include a text component, and the text component is displayed on the display unit, the display control means measures the face distance measured by the face distance measuring means. The display control device according to claim 2, wherein the display control device is configured to display the text included in the text component in a stepwise larger character size as the value becomes smaller.   In the case where the one or more components include a text component, the display control means has a relatively large character size as the measured value of the distance from the display unit on which the text component is displayed to the user increases. The display control apparatus according to claim 2, wherein the display control apparatus is configured to display text included in the component.   When the one or more components include a video component, the display control means has a measured value of the distance from the display unit to the user in the entire displayable area of the display unit on which the video component is displayed. The display control apparatus according to claim 2, wherein the display component is configured to display the video component such that the larger the size, the larger the area. Information indicating the recommended viewing distance for each of the plurality of display devices is recorded in a storage unit accessible by the display control device,
The display control means, for each of the one or more components, is based on the magnitude of the unique value of the component and the information, and the recommended viewing distance of the plurality of display devices is the recommended viewing distance of the component. The display control device according to claim 1, wherein the display device closest to the display device is selected, and the component is displayed on the selected display device. The plurality of display devices are composed of a portable display terminal and other display devices,
For each of the one or more components, the display control means displays the component on the portable display terminal when the unique value of the component is less than a first threshold, and the unique value is the first value. The display control device according to claim 1, wherein the display control device is configured to display on the other display device when the threshold value is equal to or greater than the threshold value. The plurality of display devices include a projector, a television, and a portable display terminal.
The display control means, for each of the one or more components, causes the component to be displayed by a projector when the unique value of the component is greater than or equal to a second threshold value that is greater than the first threshold value. The display control apparatus according to claim 8, wherein the display control apparatus is configured to display the component on a television when the first threshold value or more and less than the second threshold value.   The one or more components include a component uploaded to the distribution device by the content viewer and having a unique value less than the first threshold value. The display control apparatus according to claim 8 or 9. An identification means for identifying a user who is using the display control device;
Visual information indicating the visual acuity of the user is included in the storage unit accessible by the display control device,
In the case where the one or more components include a video component, the display control unit is configured such that the visual acuity indicated by the visual acuity information in the entire displayable area of the display unit on which the video component is displayed is relatively smaller. The display control apparatus according to claim 1, wherein the video component is displayed so as to occupy a wide area. An identification means for identifying a user who is using the display control device;
Visual information indicating the visual acuity of the user is included in the storage unit accessible by the display control device,
When the one or more components include a text component, the display control means displays the text included in the text component with a relatively large character size as the visual acuity indicated by the visual acuity information is weaker. The display control apparatus according to claim 1, wherein the display control apparatus is configured as follows. The above content includes an audio component,
Output control means for outputting a voice component to a display device having a voice output function capable of outputting the voice component;
Identifying means for identifying a user using the display control device,
The said output control means is comprised so that the audio | voice output level at the time of outputting the said audio | voice component may be controlled based on the hearing level of the said user, The any one of Claim 1 to 10 characterized by the above-mentioned. The display control device according to item.   The said 2nd acquisition means is comprised so that the metadata by which the said unique value regarding each of the said one or more components was shown may be acquired, The one of Claim 1-13 characterized by the above-mentioned. The display control apparatus according to 1. A display system including the display control device according to any one of claims 1 to 14,
Including the plurality of display devices,
A display system comprising the display control device as one of the plurality of display devices or as a device separate from the plurality of display devices. A first acquisition step of acquiring content including one or more components displayed on the display unit from the distribution device;
For each of the one or more components, a unique value that is unique for each class related to the recommended viewing distance determined by the content provider and that indicates the class to which the recommended viewing distance of the component belongs is acquired from the distribution device. A second acquisition step,
A display control step of displaying a component included in the content acquired in the first acquisition step on a plurality of display devices controllable by the display control device or a part of the display devices,
In the display control step, for each of the one or more components, a display device to display the component is selected from the plurality of display devices based on the size of the unique value of the component, A display control method for a display control device, wherein the component is displayed on a selected display device.   15. A program for causing a computer to operate as the display control apparatus according to claim 1, wherein the program causes the computer to function as each of the means. A computer-readable recording medium on which the program according to claim 17 is recorded.

Images