JP3837378B2 - Data presentation control device for controlling data presentation, data transmission device for transmitting information used for controlling data presentation, and data presentation control information editing device for editing information used for controlling data presentation - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a data presentation control device, a data transmission device, and a data presentation control information editing device, and more particularly to a data presentation control device for controlling the presentation of a plurality of mutually related multimedia data, and the presentation of multimedia data. The present invention relates to a data transmission apparatus for transmitting information used for control and a data presentation control information editing apparatus for editing information used for controlling presentation of multimedia data.
[0002]
[Related technologies]
Recently, satellite digital broadcasting has been started, and a large number of programs are provided using multiple channels. Multi-channeling in satellite digital broadcasting is realized by multiplexing a plurality of channels in one band. For this multiplexing, a technique called transport stream in the MPEG2 (Moving Picture Experts Group 2) standard is used. Specifically, it is described in the ISO / IEC standard 13818-1 (MPEG2 system) standard.
[0003]
By the way, as a digital broadcasting system, video information or the like is transmitted in one direction from a transmitting station, and the user can interactively manipulate the video information by himself / herself in accordance with the content of the video information transmitted at the receiving terminal. You can think of a system that can. Such a digital broadcasting system is described in a separately filed patent application “Digital broadcasting system, digital broadcasting apparatus and receiving apparatus in digital broadcasting” (Japanese Patent Application No. 9-62216).
[0004]
The feature of this digital broadcasting system is that various interactive services can be provided only by a one-way transmission system.
Hereinafter, such a digital broadcasting system will be described.
FIG. 33 is a block diagram of a digital broadcasting system considered as a premise of the present invention.
This digital broadcasting system includes a data transmission device 101 and a plurality of data reception devices 121.
[0005]
<Data transmission device>
The data transmission device 101 is configured to multiplex and repeatedly transmit data of a plurality of contents hyperlinked to each other in an MPEG2 transport stream, and includes a transmission data storage unit 102, a data multiplexing unit 103, A multiple information storage unit 104, a system information table generation unit 105, and a transmission unit 106. Here, content refers to a unit of information that is interactively operated by a user.
[0006]
The transmission data storage unit 102 includes a storage medium such as a magnetic disk and stores data and structure information of a plurality of contents constituting one interactive program. The presentation information storage unit 107 and the navigation information storage unit 108 and a structure information storage unit 109. Here, the interactive program is referred to as “event” or “program” in a state in which it is included in the MPEG2 transport stream as transmission data.
[0007]
The presentation information storage unit 107 stores presentation data such as image data and audio data that are constituent elements of the content, and the navigation information storage unit 108 is for hyperlink information indicating a link to another content, screen switching, and the like. Navigation information including operation control information such as scripts and auxiliary screen information for displaying menus on the display screen, etc., and the structure information storage unit 109 displays the correspondence between image data and navigation information as structure information. It is stored as a table.
[0008]
The multiplex information storage unit 104 stores resource allocation information such as identifiers and bands for multiplexing the transmission data stored in the transmission data storage unit 102 in the MPEG2 transport stream as a multiplex information table.
The multiplex information table includes a packet identifier (PID) value assigned to each component constituting the event when the data stored in the transmission data storage unit 102 is multiplexed as an event in the MPEG2 transport stream. It is.
[0009]
Here, the component is a stream (program element) identified by one PID in ISO / IEC 13818-1 (hereinafter referred to as “MPEG2 system standard”), and multiplexes a moving image component, an audio component, and navigation information. There are components, components that multiplex stream correspondence information described later, and the like.
[0010]
The data multiplexing unit 103 includes a multiplexing control unit 110 including a CPU and a memory, a stream correspondence information table generation unit 111, an identification information addition unit 112, a navigation information table generation unit 113, and a multiplexing unit 114. .
The multiplex control unit 110 is activated by the transmission unit 106, and first refers to the structure information table and the multiplex information table stored in the structure information storage unit 109 and the multiplex information storage unit 104, and performs digital broadcasting for each content number. An identifier for uniquely identifying each content is assigned, and a content identifier assignment table is created. Next, display image information identifier assignment in which each value of “PID”, “component_tag”, and “stream_id” is assigned for each image data A table is created, the stream correspondence information table generation unit 111 is instructed to generate a stream correspondence table, and the identifier information adding unit 112 is assigned a VE_id that is an identifier of the image data (video element, VE) in the private area of the image data. Instructing it to be added and the navigation information table Navigation information tables (navigation element, NE) Le generating unit 113 an instruction to generate.
[0011]
When the identifier information adding unit 112 receives an instruction to add identifier information from the multiplexing control unit 110, the identifier information adding unit 112 reads the image data stored in the presentation information storage unit 107. The image data identifier VE_id is written in the private area in the read image data bit stream. Note that VE_id is acquired by referring to the display image information identifier assignment table created in the multiplexing control unit 110. A file name is assigned to the image data bit stream in which VE_id has been written and stored in a storage area (not shown). When identifier information is added to all the image data, the multiplexing control unit 110 is notified of the completion of addition.
[0012]
When the navigation information table generation unit 113 receives an instruction to generate a navigation information table from the multiplex control unit 110, the navigation information table generation unit 113 reads the navigation information stored in the navigation information storage unit 108. When the read navigation information includes hyperlink information, the information of the link destination indicated by the content number is referred to the content identifier assignment table and converted into the notation of each identifier to generate the navigation information table. When hyperlink information is not included, the navigation information table is generated by changing only the file name with the original navigation information. The generated navigation information table is stored in a storage area (not shown). Hereinafter, the generated navigation information table is also referred to as navigation information by paying attention to the contents.
[0013]
When the navigation information table generating unit 113 finishes generating the navigation information table, the navigation information table generating unit 113 notifies the multiplexing control unit 110 of the end of generation.
When the stream correspondence information table generation unit 111 receives an instruction to generate a stream correspondence table from the multiplexing control unit 110, the stream correspondence information table generation unit 111 refers to the display image information identifier assignment table and generates a stream correspondence table for each image data. This stream correspondence table is used for extracting one image data from the stream transmitted from the data transmitting apparatus 101 to the data receiving apparatus 121 on the data receiving apparatus side. Hereinafter, this stream correspondence table is also referred to as stream correspondence information focusing on the contents.
[0014]
When the stream correspondence information table generation unit 111 finishes generating the stream correspondence table, the stream correspondence information table generation unit 111 notifies the multiplexing control unit 110 of the end of generation.
Upon receiving notification from the identifier information adding unit 112, the navigation information table generating unit 113, and the stream correspondence information table generating unit 111 that the respective processes have been completed, the multiplexing control unit 110 determines the number of contents in a repeating unit.
[0015]
The multiplexing unit 114 multiplexes the transmission data in the MPEG2 transport stream.
The system information table generation unit 105 is a network specification table (NIT), an EIT (Event Information Table), an SDT (Service Description Table), or a PAT (Program Association Table), which are program specification information used for program selection by the data receiving device 121. ) And PMT (Program Map Table) with reference to the multiple information storage unit 104 and the like. Hereinafter, a table generated by the system information table generation unit 105 such as NIT or EIT is referred to as system information.
[0016]
When receiving a notification from the multiplexing control unit 110, the system information table generation unit 105 first refers to the multiplexing information storage unit 104, and the data reception device 121 selects an event for multiplexing the data stored in the transmission data storage unit 102. NIT, EIT, SDT, and PAT including necessary information are generated according to the DVB-SI standard and MPEG2 system standard.
[0017]
Here, the NIT records physical information and the like regarding the transmission path for each transport stream transmitted from the network identified by the specific network, and the EIT is for each event included in the specific service. The information about the event name, the start time, the end time, and the like is recorded, and the SDT records the information such as the service name for each service included in the specific transport stream.
[0018]
The PAT records PID information of the PMT for each program included in a specific transport stream.
Next, the system information table generation unit 105 generates a PMT with reference to the multiple information table.
The PMT includes a PID for identifying each component constituting the program, the type of data transmitted by each component, and information on descriptors associated with each component.
[0019]
The transmission unit 106 includes a scheduler, and activates the multiplexing control unit 110 when a predetermined time, for example, 5 minutes before the event transmission start time. When the event transmission start time comes, the system information table such as NIT, PAT, PMT, SDT, EIT generated by the system information table generating unit 105 is added to the transport stream output from the multiplexing unit 112 in the DVB-SI standard. In accordance with the provisions of the MPEG2 system standard, the data is repeatedly multiplexed at a predetermined interval using a predetermined PID, subjected to processing such as modulation, and transmitted to the data receiving apparatus 121 or the like.
[0020]
As described above, the data transmission apparatus 101 assigns identifiers to the image data and navigation information table constituting each content, multiplexes them in the transport stream, and repeatedly transmits them.
The navigation information includes an identifier of image data of hyperlinked content, an identifier of navigation information, auxiliary screen information for displaying a menu, and a script for screen switching. Therefore, the receiving apparatus 121 can retrieve and play back arbitrary content by designating an identifier from the transport stream according to the navigation information, and can realize interactivity with a one-way communication path.
[0021]
<Data receiving device>
The data reception device 121 is configured to interactively extract and play back content from the MPEG2 transport stream transmitted from the data transmission device 101 in accordance with a user operation. The reception unit 122, the TS decoder unit 123, and the AV decoder Unit 124, reception data storage unit 125, reception control unit 126, signal reception unit 127, reproduction unit 128, display unit 129, and audio output unit 130.
[0022]
The receiving unit 122 receives the MPEG2 transport stream corresponding to the transport stream identifier specified by the reception control unit 126, and outputs it to the TS decoder unit 123.
The TS decoder unit (transport decoder unit) 123 includes a filter condition storage unit 131 that stores a filter condition set by the reception control unit 126, and in the transport stream output from the reception unit 122 according to the filter condition. Then, only the image data or the audio data having the specified identifier is separated and output to the AV decoder unit 124.
[0023]
Also, the stream correspondence table, navigation information table, and system information table multiplexed as MPEG2 standard table data are separated based on the identifier specified in the filter condition storage unit 131, and the received data storage unit 125 is determined according to the identifier. Output to the reserved area.
Further, the PCR (reference clock information) of the specified identifier is separated and output to the AV decoder unit 124. The filter condition storage unit 131 can simultaneously store a plurality of filter conditions, and the TS decoder unit 123 can perform a plurality of separation processes in parallel.
[0024]
The AV decoder unit 124 includes a clock unit (not shown). This clock unit is set to the correct reference time according to the PCR value output from the TS decoder unit 123, and counts the reference time for decoding the image data and audio data while correctly synchronizing.
When the AV decoder unit 124 receives the image data and / or audio data output from the TS decoder unit 123, the AV decoder unit 124 first receives the image data and audio data written in the private area according to the instruction of the reception control unit 126. The identifier is read and notified to the reception control unit 126. Next, in accordance with an instruction from the reception control unit 126, the image data and audio data are decoded for each decoding unit, output to the reproduction unit 128 while being synchronized by the clock unit, and the reception control unit 126 is notified of the completion of decoding. .
[0025]
The reception data storage unit 125 includes, for example, a RAM, and includes a stream correspondence information table storage unit 132, a navigation information table storage unit 133, and a system information table storage unit 134.
The stream correspondence information table storage unit 132 stores the stream correspondence table separated by the TS decoder unit 123. The navigation information table storage unit 133 stores the navigation information table separated by the TS decoder unit 123. The system information table storage unit 134 stores system information tables such as NIT, SDT, EIT, PAT, and PMT separated by the TS decoder unit 123.
[0026]
The signal reception unit 127 receives a signal such as a user's remote control operation and notifies the reception control unit 126 of the signal.
In accordance with an instruction from the reception control unit 126, the reproduction unit 128 superimposes the graphics data included in the navigation information table output from the reception control unit 126 on the image data decoded by the AV decoder unit 124 and displays the image data. The audio data output to the unit 129 and the audio data decoded by the AV decoder unit 124 are output to the audio output unit 130.
[0027]
The display unit 129 is realized by a CRT, a liquid crystal display, or the like, and displays an image output from the playback unit 128.
The audio output unit 130 is realized by a speaker or the like, and outputs the audio output from the reproduction unit 128.
The reception control unit 126 includes a CPU and a program that controls the CPU, and controls the reception unit 122 to receive a desired transport stream. In addition, when the user's operation signal is received via the signal receiving unit 127, the navigation information table currently stored in the navigation information table storage unit 133 is referred to, and the filter condition of the navigation information table to be separated next; The filter condition of the stream correspondence table for acquiring the image data is set in the filter condition storage unit 131 of the TS decoder unit 123. The filter condition of the image data is set in the filter condition storage unit 131 with reference to the stream correspondence table separated by the TS decoder unit 123 and stored in the stream correspondence information table storage unit 132.
[0028]
Further, the reception control unit 126 determines whether the image data separated by the TS decoder unit 123 is appropriate image data with reference to the image data identifier written in the private area of the image data. When the image data is appropriate, it is decoded by the AV decoder unit 124 and output to the reproduction unit 128. If the image data is not appropriate, the condition of the filter condition storage unit 131 is changed and the separation of the stream correspondence table is instructed again.
[0029]
Further, the graphics data included in the auxiliary screen information of the navigation information table separated by the TS decoder unit 123 is read out, notified to the reproduction unit 128, and displayed over the image data.
As described above, the data reception device 121 can extract presentation information and navigation information necessary for reproduction of specific content from a transport stream when necessary. Accordingly, the linked content or the like can be appropriately reproduced in accordance with the user's operation, and the interactivity according to the user operation can be achieved despite the use of the one-way communication path from the data transmitting apparatus side. It becomes possible to provide a certain program.
[0030]
<Operation>
Hereinafter, the content display operation of the data receiving apparatus 121 in the above-described digital broadcasting system and the data constituting the content will be described with reference to the drawings.
FIG. 34 is a diagram showing an example of a screen displayed by the data receiving device in the digital broadcasting system described above.
[0031]
In the figure, a screen related to a mail-order sales program is shown. A content 210 indicating a mail order menu, a content 220 indicating a video product introduction, and a content 230 indicating a stereo product introduction are shown. The display of the plurality of contents 210, 220, and 230 is switched as indicated by arrows 240, 241, 242, and 243 according to user operations.
[0032]
Now, when the content 210 indicating the mail order menu is displayed on the display screen, when the user selects and determines the “video” button 211, the display screen displays the content 210 as indicated by an arrow 240. Is switched to display of content 220 indicating video product introduction. Next, when the user determines and operates the “menu” button 221, the display screen is switched from the content 220 to the display of the content 210 as indicated by an arrow 241.
[0033]
Similarly, when the user selects and determines the “stereo” button 212 on the display screen of the content 210, the display screen is switched from the content 210 to the display of the content 230 as indicated by an arrow 243. Further, in this state, when the user determines and operates the “menu” button 231, the display screen is switched from the content 230 to the display state of the content 210 as indicated by an arrow 242. In order to switch the display in response to such a user's interactive operation, the contents 210, 220, 230 have buttons 211, 212, 221, 231.
[0034]
In order to realize display switching by the interactive operation as described above, data constituting each content is transmitted from the data transmission apparatus 101.
FIG. 35 is a diagram schematically showing the data transmitted from the data transmitting apparatus side in a simplified manner.
The data 201 to be transmitted is composed of data indicating a plurality of contents, and the whole is repeatedly transmitted for a certain period. Note that the reason why the data is repeatedly transmitted is that the data of the corresponding content can be acquired when the user intends to display the arbitrary content by an operation such as designation of a link destination at an arbitrary time. In addition, since content data is repeatedly transmitted in this way, it goes without saying that necessary content data can be obtained at any time even when the user tries to start viewing the program in the middle of the program. Yes.
[0035]
The transmitted data 201 includes a plurality of image data 215, 225, 235 and navigation information 216, 226, 236 corresponding to each of the image data.
Each image data 215, 225, 235 is a background image of each of the contents 210, 220, 230 displayed on the display screen of the data receiving device.
[0036]
Each navigation information 216, 226, 236 is, for example, bitmap (Bitmap) data indicating a button which is an on-screen display graphic superimposed on each image data 215, 225, 235, and an operation corresponding to a user operation. It includes a script (Script) describing the process and information of a hyperlink (Hyperlink) indicating the linked content for switching the display of the content. The hyperlink information includes an identifier of data such as an image constituting the linked content and an identifier of navigation information.
[0037]
The content 210 shown in FIG. 34 is expressed by image data 215 and navigation information 216. Similarly, the content 220 is expressed by image data 225 and navigation information 226, and the content 230 is expressed by image data 235 and navigation information 236.
FIG. 36 is a diagram schematically showing the state of data transmitted from the data transmitting apparatus side.
[0038]
On the transmission device side, the data 201 is repeatedly transmitted at regular intervals.
In this figure, both the image data and the navigation information are shown in a frame structure. However, actually, the image data and the navigation information corresponding to the image data are multiplexed and the data 201 is transmitted as an MPEG2 transport stream. To do.
[0039]
Hereinafter, the data multiplexed and transmitted from the data transmission apparatus 101 will be described in detail.
FIG. 37 is a diagram showing a state of multiplexing data transmitted from the data transmitting apparatus side.
As shown in the figure, the transmitted data is multiplexed with image data VE (N), navigation information table NE (N), stream correspondence table VET (N), PCR, and system information such as PAT and PMT. ing.
[0040]
Here, an arrow 202 in the figure indicates a range corresponding to the repeatedly transmitted data 201 shown in FIG.
In the example shown in the figure, 63 contents are multiplexed, “0x0084” is given as the PID to the image data VE (0) to VE (62), and “0xe0” to “0xef” is the stream_id. Are given cyclically and multiplexed.
[0041]
Further, in the stream correspondence information VET (N), “0 × 0083” is given as the PID, and the same value as the image data identifier VE_id is given as table_id_extension. The stream correspondence information VET (N) is multiplexed once for each image data VE (N).
The 63 pieces of navigation information NE (0) to NE (62) are multiplexed with “0x0082” as the PID and with the value of NE_id that is the identifier of the navigation element as table_id_extension. PCR, PAT, and PMT are also multiplexed with a predetermined PID.
[0042]
Here, table_id_extension and stream_id are identifiers for identifying each data by combining with PID. As a result, the data receiving apparatus 121 can separate and extract desired data from the transmitted transport stream by the TS decoder unit 123 by setting these identifiers in the filter condition storage unit 131 from the received data. It becomes.
[0043]
Accordingly, in order to form a hyperlink in accordance with a user operation or the like, for example, VE_id that is an identifier of image data and an identifier of navigation information are used as hyperlink information in the navigation information corresponding to the displayed content. Since NE_id is described, it is possible to display the content by separating and extracting data constituting the content to be newly displayed based on this information.
[0044]
This procedure will be described below.
First, the data receiving apparatus 121 acquires the PAT of the currently received transponder (satellite repeater). When the program selected by the user is another transponder, the data reception device 121 controls the reception unit 122 and changes the transponder to receive by acquiring and referring to the NIT. Description of is omitted.
[0045]
Since the PID of the PAT is determined to be 0 in advance, the data receiving apparatus 121 can perform separation and extraction by setting PID = 0 in the filter condition storage unit 131, and the PAT contains the PMT PID. The PMT can be separated and extracted by acquiring the PID of the PMT corresponding to the program to be used and setting it in the filter condition storage unit 131.
[0046]
Since the PMT describes the PID for the component, the data receiving apparatus 121 acquires the PID of the stream correspondence table VET, and stores the VE_id obtained from the hyperlink information together with the table_id_extension to store the filter condition By setting in the unit 131, a VET corresponding to the target image data can be separated and extracted.
[0047]
VET describes component_tag and stream_id, but the data receiving apparatus 121 obtains the PID for the component by referring to the PMT based on the component_tag, and sets the PID and stream_id in the filter condition storage unit 131. The target image data can be displayed.
[0048]
Further, the data receiving apparatus 121 obtains the PID of the component in which the navigation information is multiplexed by referring to the PMT, and sets the NE_id obtained from the hyperlink information together with the table_id_extension in the filter condition storage unit 131. Thus, target navigation information can be separated and extracted.
[0049]
In this way, the data receiving apparatus 121 can obtain image data and navigation information constituting new content.
Here, the data structure of the navigation information will be described in detail with the navigation information 216 shown in a simplified manner in FIG. 35 as an example.
FIG. 38 is a diagram showing a data structure of the navigation information 216. As shown in FIG.
[0050]
The navigation information 216 includes Bytecode_Part301, Handler_Part302, Graphics_Property_Part303, Bitmap_Information_Part304, and Hyperlink_Information_Part305.
Bytecode_Part 301 corresponds to the portion simplified as Script in FIG. 35, and is a portion where a byte code which is a kind of so-called script is described. The byte code includes various instruction sets related to image and audio data control in addition to an instruction set that enables basic programming such as conditional branching, integer arithmetic, and access to constant variables.
[0051]
In the example of FIG. 38, the byte code No. 0 is described as PushL0 and GotoPage.
PushL0 is an instruction indicating that a value of 0 is stored in the stack, and GotoPage is an instruction indicating that the display is switched to the content of the link number indicated by the value stored in the stack. Here, the link number is described in Hyperlink_Information_Part, and is an identifier for identifying content to be switched.
[0052]
Therefore, the 0th byte code describes the operation of switching the display to the content that is the link destination of link number 0.
Similarly, the first bytecode describes the operation of switching the display to the content that is the link destination of link number 1.
The Handler_Part 302 is a part describing the association between the handler number and the bytecode number. In the example of FIG. 38, byte code numbers 0 and 1 are associated with handler numbers 0 and 1, respectively. Actually, not only bytecodes correspond to handlers, but also information that defines an environment for executing handler processing such as variable areas.
[0053]
Bitmap_Information_Part 304 is a part describing the contents of the bitmap displayed on the button corresponding to the graphics number. In the example of FIG. 38, a bitmap in which “video” is drawn is associated with the number 0 graphics, and a bitmap in which “stereo” is depicted is associated with the number 1 graphics.
[0054]
Graphics_Property_Part 303 is information constituting on-screen display graphics to be superimposed on image data on the display screen, and includes a graphics number for identifying graphics, a graphics type, coordinates to be displayed, and graphics. It includes the number of the corresponding handler and a value indicating the initial state when the content is displayed. In the example of FIG. 38, the graphics type is a button, the graphics number is a value of 0, 1 and corresponds to the graphics number included in the Bitmap_Information_Part 304 described above. Hereinafter, the button having the graphics number n is referred to as “button n” or “n-th button”. The set of the x coordinate and the y coordinate for displaying each of the buttons 0 and 1 is (20, 20) and (20, 60). The numbers of the handlers that are activated when the buttons 0 and 1 are selected and confirmed are 0 and 1, respectively. Further, the initial state of the buttons 0 and 1 in the initial state where the content is displayed is visible.
[0055]
The Hyperlink_Information_Part 305 is a part in which the ID of the material constituting the linked content is described. The material ID is described as information indicating all contents to be switched from the content having the navigation information as an element. A link number is added as an identifier for identifying the contents to be switched to as a group. In the example of FIG. 38, NE_id = 1 and VE_id = 1 are described as the link destination of the number 0, and the configuration is based on the information of the NE ID of 1 and the VE ID of 1 This indicates that one content to be linked is a link destination. The first link destination is content configured based on information about the NE ID of No. 2 and the video element ID of No. 2.
[0056]
It should be noted that the fact that NE_id is 0 in the upper part of FIG. 38 means that the navigation information described here is a navigation element having an ID of 0.
Therefore, the data receiving apparatus 121 is drawn by the reception control unit 126 with reference to the navigation information having these data structures and the button “video” and “stereo” of the content 210 shown in FIG. When a button is displayed and the user selects the button, switching to another content is controlled.
[0057]
In other words, when displaying the content, the reception control unit 126 refers to Graphics_Property_Part, displays the graphics in the predetermined display state in the predetermined coordinates in order from the graphic with the graphic number 0, and confirms the button selection by the user. In response to the operation, a handler process corresponding to the handler number described in Graphics_Property_Part is executed. The handler process is performed by referring to the Handler_Part and executing the bytecode associated with the handler number and described in the Bytecode_Part. The bytecode is interpreted and executed one instruction at a time by a bytecode interpreter (not shown) in the reception control unit 126.
[0058]
As described above, in this digital broadcasting system, image data, navigation information, and the like, which are data necessary for displaying content, are multiplexed and repeatedly transmitted from the data transmitting apparatus side, and data reception is received. The apparatus can display content by separating and extracting necessary information from transmitted data in response to a user's selection operation. That is, an interactive service can be realized by a one-way broadcasting system.
[0059]
[Problems to be solved by the invention]
By the way, in actual broadcasting, a program having the same contents may be rebroadcast at a later date, but in order to save labor, there is a demand for reusing the various data constituting the program once produced as it is.
A point to be considered in satisfying this requirement is that, for example, when broadcasting content including image data such as “until September 10, 1996 during the campaign period” is broadcast, until September 10, 1996. However, there is a case where there is data that should not be displayed at the time of re-broadcasting so that it is inappropriate to re-broadcast after September 11, 1996. In order to satisfy this requirement, a mechanism for controlling the link destination according to the broadcast date and time for prohibiting the link to the data at the time of rebroadcasting is required.
[0060]
Further, in actual broadcasting, it is usual to broadcast a plurality of different programs every time. In this case, in order to establish a link between the programs, the link is dynamically matched due to the difference in the program broadcasting time. There is a demand to be. In order to satisfy this requirement, a mechanism for controlling the link destination in accordance with the end date and time of the program to be the link destination is required.
Furthermore, from the viewpoint of broadcasting various program contents, there is also a need for a mechanism for changing the contents displayed when a certain period of time has elapsed since the user's operation or the like, or limiting the functions that can be operated by the user. .
[0061]
In other words, in a digital broadcasting system, a program control mechanism that incorporates a time element is necessary, so that a program producer can efficiently produce and broadcast various programs, and broadcast receivers. Can enjoy a variety of interactive programs.
In order to satisfy the need for such a program service, the related art is required to perform program control incorporating these time factors.
[0062]
Therefore, the present invention has been made from such a viewpoint, and a first object of the present invention is to provide a data presentation control device on the receiving device side for realizing a program control mechanism incorporating a temporal element. . Such a data presentation control device is a device that receives data sent from a data transmission device and displays and reproduces it in accordance with a user operation. It is a second object of the present invention to provide a data transmission apparatus on the transmission apparatus side for realizing a program control mechanism incorporating a temporal element.
[0063]
A third object of the present invention is to provide a data presentation control information editing device for editing control data for realizing a program control mechanism incorporating a temporal element.
[0064]
[Means for Solving the Problems]
In order to achieve the above first object, a data presentation control device according to the present invention controls a plurality of multimedia data constituting a plurality of contents which are constituent elements of a program, and presentation of the multimedia data. A data presentation control device for receiving presentation of multimedia data and controlling presentation of multimedia data, comprising: a data storage means; the multimedia data and the control time information; From the transmission device and stored in the data storage means. The reception is performed by separating and extracting desired data from the transmitted data, and the time-lapse information for acquiring current temporal information. Determination of whether or not to control the presentation of the multimedia data by comparing the temporal information and the control time information And time information comparison determining means for, and a presenting control means for controlling the presentation of the multimedia data based on the determination result of the time information comparison determining unit.
[0065]
With the above configuration, since it is possible to control whether or not to present multimedia data by comparing the time information used for control and information related to the current time, data presentation that performs data presentation on the condition of time A control device is realized.
In order to achieve the second object described above, a data transmission apparatus according to the present invention is a data transmission apparatus that transmits a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program. Transmission data storage means for storing multimedia data and control time information that is time information for controlling presentation of multimedia data; and transmission means for transmitting the multimedia data and the control time information It is characterized by providing.
[0066]
With the above configuration, when providing a program capable of interactive operation with a one-way transmission system, information specifying the presentation timing of multimedia data that is an element constituting the program is transmitted to the data presentation control device. A data transmission device capable of performing the above is realized.
In order to achieve the third object described above, the data presentation control information editing apparatus according to the present invention expresses information on the date and time for expressing the correlation of a plurality of contents on a display screen and controlling the relation of the contents. Is a data presentation control information editing device that edits according to the operation of the link, and includes link information indicating a path of change of presentation from the first content to the second content, and valid period information related to a valid period of the link information. Data storage means for storing a plurality of sets, content control information for controlling display of content and execution of processing, date designation accepting means for accepting designation of date and time by a user operation, and valid period information By referring to the link information valid at the date and time specified by the user, the correlation of the content at the date and time is expressed. Characterized in that it comprises a content correlation display means to represent the screen.
[0067]
DETAILED DESCRIPTION OF THE INVENTION
<Embodiment 1>
In the first embodiment, the data transmission device according to the present invention for broadcasting a program that executes a specific operation at a specific date and time, and the present invention that receives the transmitted data and executes the specific operation at a specified date and time. A data presentation control apparatus according to the above will be described.
[0068]
Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings.
The data presentation control apparatus according to the first embodiment of the present invention receives an MPEG2 transport stream transmitted from a digital broadcast transmission apparatus, and interactively extracts content from the MPEG2 transport stream according to a user operation. It is a device for playback.
[0069]
Here, the content refers to a unit of information that is interactively operated by the user. Presentation information such as image data and audio data included in each content, and bitmap (bitmap) data such as buttons constituting on-screen display graphics displayed superimposed on various image data, and operations for user operations Transmission data in which navigation information including script (Script) information describing processing and hyperlink information indicating a link destination content that can be displayed and switched by a user operation is multiplexed. The data transmission apparatus according to the first embodiment of the present invention transmits the MPEG2 transport stream defined in the MPEG2 (Moving Picture Experts Group2) standard.
[0070]
The data transmission apparatus according to the first embodiment transmits one or more MPEG2 transport streams from one satellite (network) using carrier waves of different bands, as in a general satellite digital broadcasting system. Each broadcast program is multiplexed in one of the MPEG2 transport streams.
<Configuration of data presentation control device>
Below, the structure of the data presentation control apparatus in Embodiment 1 of this invention is demonstrated.
[0071]
FIG. 1 is a block diagram showing the configuration of the data presentation control apparatus according to the first embodiment of the present invention.
As shown in the figure, the data presentation control apparatus 1000 includes a receiving unit 1010, a TS decoder unit 1020, an AV decoder unit 1030, a received data storage unit 1040, a reception control unit 1050, a reproduction unit 1060, a display unit 1070, and an audio output. Unit 1080 and signal receiving unit 1100.
[0072]
The receiving unit 1010 receives the MPEG2 transport stream and outputs it to the TS decoder unit 1020. The designation of the MPEG2 transport stream to be received is controlled by the reception control unit 1050 using an identifier.
The TS decoder unit 1020 includes a filter condition storage unit 1021 that stores a filter condition set by the reception control unit 1050, and a reception control unit 1050 out of the transport stream output from the reception unit 1010 according to the filter condition. Only the image data or the audio data is separated and extracted based on the instruction using the identifier and output to the AV decoder unit 1030. Further, the table data corresponding to the instruction using the identifier from the reception control unit 1050 is separated and extracted, and is output to the reception data storage unit 1040. Also, PCR (reference clock information) is separated and extracted and output to the AV decoder unit 1030.
[0073]
The filter condition storage unit 1021 can simultaneously store a plurality of filter conditions, and the TS decoder unit 1020 can execute a plurality of separation processes according to the filter conditions in parallel. Filter conditions are stream ID and table ID for separating and extracting image data, audio data, navigation information, PCR and other control information from the transport stream, and instruction information such as the output destination of the extracted data and separation and extraction. Control information for starting or stopping.
[0074]
The AV decoder unit 1030 includes a clock unit 1031 and an internal buffer. When the AV decoder unit 1030 receives image data and / or audio data output from the TS decoder unit 1020, the AV decoder unit 1030 takes the data into the internal buffer. The image data and the audio data are decoded for each decoding unit, and output to the reproduction unit 1060 while being synchronized using the clock unit 1031.
[0075]
The clock unit 1031 is set to a correct reference time based on the PCR value output from the TS decoder unit 1020, and counts a reference time for decoding image data and audio data while synchronizing them correctly.
The reception data storage unit 1040 includes, for example, a RAM, and includes a stream correspondence information storage unit 1041, a navigation information storage unit 1042, a system information storage unit 1043, and a time information storage unit 1044. The stream correspondence information storage unit 1041 is the stream correspondence information table storage unit 132 shown in the description of the related art, the navigation information storage unit 1042 is the navigation information table storage unit 133, and the system information storage unit 1043 is the system information table storage unit. 134, respectively.
[0076]
The stream correspondence information storage unit 1041 is an area for storing information indicating the multiplexing position in the stream for the image and sound constituting the content. Here, a video element (one unit of information indicating the image data) is stored. VE) identifier VE_id and stream correspondence information VET which is information describing the relationship between VE multiple positions in the stream are stored. Therefore, the image data to be displayed can be specified by VE_id.
[0077]
The navigation information storage unit 1042 is an area for storing navigation information, the system information storage unit 1043 is for storing system information such as PAT and PMT, and the time information storage unit is an area for storing TDT and TOT.
Here, PAT (Program Association Table) is information for managing a plurality of broadcast programs defined in the MPEG2 system standard, and includes PID which is an identifier for separating and extracting PMT of each broadcast program, and PAT itself is PID. Is predetermined as 0.
[0078]
Therefore, the data presentation control apparatus sets the filter condition of PID 0 in the filter condition storage unit 1021 to separate and extract the PAT from the transmitted data and store it in the system information storage unit 1043.
PMT (Program Map Table) is defined in the MPEG2 system standard as information for managing various types of information necessary for broadcast programs in units of one broadcast program. This information includes PCR and image data. And PID information, which is an identifier for separating and extracting navigation information, and image data constituting the content to be displayed first when the broadcast program is selected and navigation information identifier information.
[0079]
Therefore, when the user of the data presentation control apparatus selects one program, the PID of the PMT corresponding to the program is obtained by referring to the PAT, and this PID is set in the filter condition storage unit 1021. As a result, the necessary PMT is acquired and stored in the system information storage unit 1043.
TDT (Time and Data Table) is information indicating the current date and time in a single standard time, and TOT (Time Offset Table) is information indicating the time difference for each country. Details of the TDT and TOT will be described later.
[0080]
The signal receiving unit 1100 receives a signal sent by a user's remote control operation or the like, and notifies the reception control unit 1050 of the signal.
The playback unit 1060 superimposes on-screen display graphics information output from the reception control unit 1050 on the image data decoded by the AV decoder unit 1030 according to an instruction from the reception control unit 1050, and displays the image data on the display unit 1070. The audio data output and decoded by the AV decoder unit 1030 is output to the audio output unit 1080.
[0081]
The display unit 1070 is realized by a CRT, a liquid crystal display, or the like, and displays an image output from the reproduction unit 1060.
The audio output unit 1080 is realized by a speaker or the like, and outputs the audio output from the reproduction unit 1060.
The reception control unit 1050 includes a byte code interpreter 1051, and controls the reception unit 1010, the TS decoder unit 1020, the AV decoder unit 1030, and the reproduction unit 1060 to receive a desired transport stream, or to receive desired information. The filter condition storage unit 1021 is updated or an image is displayed or a sound is reproduced for acquisition. Also, various operations corresponding to user operations are realized.
[0082]
In order to perform an operation corresponding to the user's operation, the reception control unit 1050 refers to the navigation information stored in the navigation information storage unit 1042, and reproduces the on-screen display graphics to be displayed over the image. And handler processing corresponding to user button operations. The button is drawn on the display surface by on-screen display graphics, and is displayed based on bitmap information or the like in the navigation information. Here, the handler process is an operation process that is executed in response to the occurrence of various events, and is executed based on a script described in the navigation information.
[0083]
The bytecode interpreter 1051 sequentially interprets and executes a script described in the navigation information.
<Data composing display screen and contents>
A screen on which content is displayed by the data presentation control apparatus 1000 having the above-described configuration and data constituting the content will be described with reference to FIGS. 2, 3, 4, and 5.
[0084]
FIG. 2 is a diagram illustrating an example of a screen displayed by the data presentation control apparatus 1000 according to the first embodiment of the present invention.
This figure corresponds to FIG. 34 used for the description of the related art, and shows a screen relating to a mail-order program. A content 2100 indicating a mail-order menu, a content 2200 indicating a video product introduction, and a content 2300 indicating a stereo product introduction are shown. The display of the plurality of contents 2100, 2200, and 2300 is switched by user operations as indicated by arrows 2400, 2410, 2420, and 2430. The content 2130 which is the difference from FIG. 34 is the same content as the content 2100, but the display content has changed due to the passage of time.
[0085]
Now, when the content 2100 indicating the mail order menu is displayed on the display screen, when the user selects and determines the “video” button 2110, the display screen displays the content 2100 as indicated by an arrow 2400. Is switched to display of content 2200 indicating video product introduction. Next, when the user performs a determination operation on the “menu” button 2210, the display screen is switched from the content 2200 to the display of the content 2100 as indicated by an arrow 2410.
[0086]
Similarly, when the user selects and determines the “stereo” button 2120 on the display screen of the content 2100, the display screen is switched from the content 2100 to the display of the content 2300 as indicated by an arrow 2430. Further, in this state, when the user determines and operates the “menu” button 2310, the display screen is switched from the content 2300 to the display state of the content 2100 as indicated by an arrow 2420. The contents 2100, 2200, and 2300 have buttons 2110, 2120, 2210, and 2310 in order to switch the display in response to such user's interactive operation.
[0087]
In addition, when the date and time reaches 15:00:00 on September 9, 1996, the display of the content 2100 changes as shown in the content 2130, and a button 2131 with the message “acceptance has been closed” is displayed. However, this button 2131 is also displayed by data included in the content 2100 in advance.
<Data transmission device>
In order to realize the display switching by the interactive operation as described above, data constituting each content is transmitted from the digital broadcast data transmitting apparatus according to the present invention in the first embodiment as described below.
[0088]
Note that the data transmission apparatus according to the present invention in Embodiment 1 is the same in configuration as the data transmission apparatus 101 shown in the description of the related art described above (see FIG. 33). However, as will be described later, the content of the navigation information to be transmitted includes information that enables control by time factors, unlike the navigation information in the description of the related art.
[0089]
FIG. 3 is a diagram schematically showing the data transmitted from the data transmitting apparatus side in a simplified manner.
FIG. 3 corresponds to FIG. 35 used for the description of the related art. The transmitted data 2010 corresponds to the data 201 shown in FIG. 35, and the image data 2150, 2250 and 2350 are shown in FIG. The navigation information 2160, 2260, and 2360 correspond to the data 216, 226, and 236 shown in FIG.
[0090]
Each of the image data 2150, 2250, and 2350 is a background image of each of the contents 2100, 2200, and 2300 displayed on the display screen of the data presentation control apparatus 1000, respectively.
However, unlike FIG. 35, control information based on the date and time of Time_Event is added to each navigation information. It should be noted that, unlike the case of FIG. 35, the bitmap drawn “acceptance has been closed” in the navigation information 2160 added in FIG. 3 has an attribute of non-display in the initial state.
[0091]
The content 2100 shown in FIG. 2 is expressed by image data 2150 and navigation information 2160. Similarly, the content 2200 is expressed by image data 2250 and navigation information 2260, and the content 2300 is expressed by image data 2350 and navigation information 2360.
In addition, the data transmission apparatus side repeatedly transmits the data 2010 at regular intervals, and the state of this transmission is the same as that shown in FIG. 36 in the description of the related art. Data and navigation information are respectively replaced with the contents shown in FIG.
[0092]
Hereinafter, the data multiplexed and transmitted from the data transmitting apparatus side will be described in detail.
FIG. 4 is a diagram schematically showing a state of multiplexing data transmitted from the data transmitting apparatus side.
This figure corresponds to FIG. 37, and transmitted data includes image data VE (N), navigation information NE (N), stream correspondence information VET (N), PCR, PAT, PMT, and the like. System information is multiplexed. The system information includes TDT and TOT to which a predetermined PID is assigned.
[0093]
As described above, since the data transmission apparatus according to the present invention in Embodiment 1 transmits data, the data presentation control apparatus 1000 sets the PID determined for TDT and TOT from the received data in the filter condition storage unit 1021. Accordingly, it is possible to separate and extract the TDT and TOT from the transmitted transport stream by the TS decoder unit 1020.
[0094]
<Detailed explanation of navigation information>
Hereinafter, the navigation information simplified in FIG. 3 will be described in detail with reference to FIGS.
FIG. 5 is a diagram showing a data structure of the navigation information 2160.
The navigation information 2160 includes Time_Event_Part 2161, Bytecode_Part 2162, Handler_Part 2163, Graphics_Property_Part 2164, Bitmap_Information_Part 2165, Hyperlink_Information 2166, and Hyperlink_Part 2166.
[0095]
FIG. 5 corresponds to FIG. 37 used for the description of the related technology, and is different in that Time_Event_Part 2161 which is a feature of the present invention is added to the related technology.
Time_Event_Part 2161 corresponds to the portion represented as Time_Event in FIG. 3 and is a portion for describing a specific handler to be activated at a specified date and time. In the example of FIG. 5, September 9, 1996, 15:00 The second handler will be activated at 0 seconds. A plurality of activation dates may be described for one handler. The date and time is described in the year, month, day, hour, minute, and second.
[0096]
Bytecode_Part 2162 corresponds to the portion represented as Script in FIG. 3, and is a portion where a byte code which is a kind of so-called script is described. The byte code includes various instruction sets related to image and audio data control in addition to an instruction set that enables basic programming such as conditional branching, integer arithmetic, and access to constant variables.
[0097]
In the example of FIG. 5, the byte code of No. 0 is described as PushL0 and GotoPage.
PushL0 is an instruction indicating that a value of 0 is stored in the stack, and GotoPage is an instruction indicating that the display is switched to the content of the link number indicated by the value stored in the stack. Here, the link number is described in Hyperlink_Information_Part, and is an identifier for identifying content to be switched.
[0098]
In addition, there is a description of SetGraphicVisibility in the 2nd byte code, but this is an instruction to switch between visible and invisible depending on whether the value stored in the stack is 1 or 0. The value stored in the stack indicates the button to be switched between visible and invisible.
[0099]
Accordingly, the 0th byte code is the operation to switch the display to the content that is the link destination of the link number 0, and the 1st byte code is the operation to switch the display to the content that is the link destination of the link number 1 to the second byte. The code describes the operation of making the button with the graphics number 2 visible and making the button with the graphics number 0 and the button with the graphics number 1 invisible. The graphics number is described in Graphics_Property_Part described later.
[0100]
Handler_Part 2163 is a part that describes the correspondence between handler numbers and bytecode numbers. In the example of FIG. 5, byte code numbers 0, 1, and 2 are associated with handler numbers 0, 1, and 2, respectively. Actually, not only bytecodes correspond to handlers, but also information that defines the environment for executing handler processing such as variable areas, but it does not show the features of the present invention. Not.
[0101]
Bitmap_Information_Part 2165 is a part describing the contents of the bitmap displayed on the button corresponding to the graphics number. In the example of FIG. 5, a bitmap in which “video” is drawn in the 0th graphic, a bitmap in which “stereo” is drawn in the 1st graphic, and “acceptance is accepted in the 2nd graphic”. A bitmap with "Closed" is associated.
[0102]
Graphics_Property_Part 2164 is information constituting on-screen display graphics, and includes a graphics number for identifying graphics, a graphics type and coordinates to be displayed, a handler number corresponding to the graphics, and a content display. And a value indicating the initial state of the hour. In the example of FIG. 5, the graphics type is a button, and the graphics numbers are values of 0, 1, and 2 and correspond to the graphics numbers included in the above Bitmap_Information_Part. A set of x coordinates and y coordinates for displaying the buttons 0, 1 and 2 is (20, 20), (20, 60) and (0, 20). In addition, the numbers of the handlers that are activated when the buttons 0 and 1 are selected and confirmed are 0 and 1, respectively, and there is no handler associated with the button 2. The initial state of the 0th and 1st buttons in the initial state where the content is displayed is visible, and the initial state of the 2nd button is invisible.
[0103]
Hyperlink_Information_Part 2166 is a part in which the ID of the material constituting the linked content is described. The material ID is described as information indicating all contents to be switched from the content having the navigation information as an element. A link number is added as an identifier for identifying the contents to be switched to as a group. In the example of FIG. 5, NE_id = 1 and VE_id = 1 are described as the link destination of the number 0, and the configuration is based on the information of the NE ID of 1 and the VE ID of 1 This indicates that one content to be linked is a link destination. The first link destination is content configured based on information about the NE ID of No. 2 and the video element ID of No. 2.
[0104]
The fact that NE_id is 0 in the upper part of FIG. 5 means that the navigation information described here is a navigation element having an ID of 0.
FIG. 6 is a diagram showing a data structure of the navigation information 2260. As shown in FIG.
In the navigation information 2260, the NE ID is No. 1, and the data structure is the same as the navigation information 2160 described above. Hereinafter, specific contents will be described with reference to the example of FIG.
[0105]
Time_Event_Part 2261 is not described.
In Bytecode_Part 2262, PushL0 and GotoPage are described as the 0th byte code, which is an instruction sequence for displaying the content linked to the 0th link.
In Handler_Part 2263, byte code number 0 is associated with handler number 0.
[0106]
In Bitmap_Information_Part 2265, a bitmap in which “Menu” is drawn at the number 0 is assigned.
The description content of Graphics_Property_Part 2264 is that the graphics type is a button and the graphics number is 0. The set of x and y coordinates for displaying the button 0 is (20, 60). In addition, the number of the handler that is activated when the selection of the 0th button is confirmed is 0, and the initial state of the 0th button in the initial state in which the content is displayed is visible.
[0107]
Hyperlink_Information_Part 2266 describes NE_id = 0 and VE_id = 0 as the link destination of the number 0, and is configured based on information on the NE ID of 0 and the VE ID of 0. Indicates that one content is a link destination.
FIG. 7 shows the data structure of navigation information 2360.
[0108]
In the navigation information 2360, the NE ID is No. 2, and the data structure is the same as the navigation information 2160 described above. Hereinafter, specific contents will be described with reference to the example of FIG.
Time_Event_Part 2361 is not described.
In Bytecode_Part 2362, PushL0 and GotoPage are described as the 0th byte code, which is an instruction sequence for displaying the content linked to the 0th link.
[0109]
In Handler_Part 2363, byte code number 0 is associated with handler number 0.
In Bitmap_Information_Part2365, a bitmap in which “menu” is drawn at number 0 is assigned.
The description content of Graphics_Property_Part 2364 is that the graphics type is a button and the graphics number is 0. The set of x and y coordinates for displaying the button 0 is (20, 60). In addition, the number of the handler that is activated when the selection of the 0th button is confirmed is 0, and the initial state of the 0th button in the initial state in which the content is displayed is visible.
[0110]
Hyperlink_Information_Part2366 describes NE_id = 0 and VE_id = 0 as the link destination of the number 0, and is configured based on information on the NE ID of 0 and the VE ID of 0. Indicates that one content is a link destination.
In addition to the navigation information described above, the content is configured based on the image data pointed to by VE and displayed on the display screen.
[0111]
Note that image data corresponding to VE_id = 0 is image data 2150, image data 2250 corresponds to VE_id = 1, and image data 2350 corresponds to VE_id = 2 (see FIG. 3).
With these data, the data presentation control apparatus 1000 displays another content on the screen when the user selects a button for the displayed content, and if the date and time described in Time_Event_Part is reached Control such as executing a specific operation can be realized.
[0112]
<Operation of data presentation control device>
Hereinafter, the operation of the reception control unit 1050 in the data presentation control apparatus 1000 will be described using the drawings based on the above-described data structure.
FIG. 8 is a flowchart showing the content switching operation and the handler activation operation, and FIG. 9 is a diagram showing the transition of the display screen.
[0113]
The reception control unit 1050 includes a CPU and a program, and performs processing of content switching operation and handler activation operation. This process control includes an initial process S3010 for specifying a content to be displayed first at the start of program reception, and a process group S3030, S3040, S3050, S3060 that operates only when it is determined that the content has been switched by the determination process S3020. The processing group S3080, S3090, S3100 that operates when it is determined by the determination process S3070 that there is a handler to be activated by specifying the date and time, the processing groups S3110, S3120 corresponding to the user input, and the handler activation are executed. This processing is realized from the processing S3130.
[0114]
Information about the first content is defined as a set of VE_id and NE_id in the PMT stored in the system information storage unit 1043. Here, the subsequent operation will be described assuming that VE_id = 0 and NE_id = 0 are described in the PMT.
Further, the description starts assuming that the current date is 14: 57: 00: 00 on September 9, 1996.
[0115]
First, VE_id = 0 and NE_id = 0 are acquired from the PMT as information of content that is first displayed in a program related to mail order (step S3010).
Since it is the first content, it is handled as being switched (step S3020), and the content is displayed (step S3030).
[0116]
The content is displayed by using the image data 2150 indicated by VE_id = 0 as a background and on-screen display graphics according to the contents of the navigation element of NE_id = 0. In accordance with the contents described in NE's Graphics_Property_Part 2164 and Bitmap_Information_Part 2165 shown in FIG. 5, a button drawn “video” is displayed in a visible state at coordinates (20, 20), and a button drawn “stereo” is displayed in coordinates (20 , 60) in a visible state.
[0117]
Accordingly, a display screen as shown in the screen transition 3210 is displayed.
If the NE's Time_Event_Part has a description for starting the handler by specifying the date and time after displaying the content (step S3040), the date and time specification flag is set to 1 to perform the handler startup processing by the date and time (step S3050). If there is no description, the date designation flag is set to 0 (step S3060). Since the Time_Event_Part of NE shown in FIG. 5 is described to start the second handler at 15:00:00 on September 9, 1996, the date / time designation flag is set to 1 in this case (step S3050). ).
[0118]
If the date / time designation flag is 1 (step S3070), the current date / time is acquired (step S3080), and the current date / time is corrected to the date / time in the country where the data presentation control apparatus 1000 is installed (step S3090). Details of the acquisition of the current date and time correction will be described later. However, it is assumed that there is no time difference in the description in this example.
[0119]
It is determined whether or not the current date / time is the date / time designated by Time_Event_Part 2161 of NE (step S3100). If the current date / time is not the designated date / time, the process moves to a process of moving the selection pointer according to the user's input (step S3110). ) If any button is selected (step S3120), the handler is activated (step S3130). Here, the selection pointer is a mark on the display screen, and moves on the display screen in response to a user operation. Accordingly, the user moves the selection pointer to the position of the target button by depressing the up, down, left, right, etc. keys of the remote controller or the like, and selects the button by depressing the “confirm” key.
[0120]
At this time, if the user selects the button drawn as “video”, Graphics_Property_Part 2164 is referred to and the 0th handler is activated. The 0th handler process is composed of the 0th bytecode, and the contents of the 0th bytecode are PushL0 and GotoPage. Therefore, NE_id = 1 and VE_id = are the 0th link destinations described in Hyperlink_Information_Part2166. It is switched to the content indicated by 1. Note that the reception control unit 1050 executes the byte code using the byte code interpreter 1051.
[0121]
The bytecode interpreter 1051 has a stack area for storing variables. In this case, first, PushL0 is interpreted and 0 is stored in the stack area. Next, the GotoPage is interpreted, and processing for switching to the content corresponding to the link number indicated by the value stored in the stack area is performed.
After the activation of the handler (step S3130), the process returns to the determination process (step S3020) as to whether or not the content has been switched. Since the switching has been performed, new content is displayed (step S3030).
[0122]
The new content is displayed by using the image data 2250 indicated by VE_id = 1 as a background and on-screen display graphics according to the contents of the navigation element of NE_id = 1. In accordance with the contents described in NE's Graphics_Property_Part 2264 and Bitmap_Information_Part 2265 shown in FIG. 6, a button labeled “menu” is displayed in a visible state at coordinates (20, 60).
[0123]
Therefore, if the time when new content is displayed is 14: 58: 00: 00 on September 9, 1996, a display screen as shown in a screen transition 3220 is displayed.
After the content display process (step S3030), it is determined whether or not the NE's Time_Event_Part has a date / time designation (step S3040). Since the NE's Time_Event_Part 2261 shown in FIG. 6 has no description, the date / time designation flag is set to 0 ( Step S3060).
[0124]
Since the date and time designation flag is 0 (step S3070), the current date and time comparison judgment processing (steps S3080, S3090, and S3100) is skipped, and the processing according to the user input (steps S3110 and S3120) is performed. If it is selected, the handler process is activated (step S3130).
At this time, if the user selects a button labeled “Menu”, Graphics_Property_Part 2264 is referred to and the 0th handler is activated. Since the 0th handler process is composed of the 0th byte code, and the content of the 0th byte code is PushL0 and GotoPage, NE_id = 0 and VE_id = are the 0th link destinations described in Hyperlink_Information_Part2266. The content is switched to 0.
[0125]
After the activation of the handler (step S3130), the process returns to the determination process (step S3020) of whether or not the content has been switched, and the next content is displayed because the switching has been performed (step S3030).
Here, the next content is the same as the content displayed first, but the image data 2150 indicated by VE_id = 0 is displayed as the background, and the on-screen display graphics are displayed according to the content of the navigation element of NE_id = 0.
[0126]
Accordingly, if the time when new content is displayed is 14: 59: 00: 00 on September 9, 1996, a display screen as shown in a screen transition 3230 is displayed.
Since the Time_Event_Part 2161 of NE shown in FIG. 5 after the content is displayed describes that the second handler is started at 15:00:00 on September 9, 1996, the date / time designation flag is 1 in this case. (Step S3050).
[0127]
If the date / time designation flag is 1 (step S3070), the current date / time is acquired (step S3080), and the current date / time is corrected to the date / time in the country where the data presentation control apparatus 1000 is installed (step S3090).
It is determined whether or not the current date / time is the date / time designated by Time_Event_Part 2161 of NE (step S3100).
[0128]
Now, assuming that it is 15:00:00 on September 9, 1996, the second handler is started.
That is, the handler control part 1050 refers to the NE Handler_Part 2163 and Bytecode_Part 2162 shown in FIG. The
[0129]
The bytecode interpreter 1051 first interprets PushL2 and stores 2 in the stack, and interprets PushL1 and stores 1 in the stack. Next, SetGraphicVisibility is interpreted, and this instruction takes out the first variable, which is another visible / invisible instruction, and the second variable, which is the graphics number of the visual control target, from the stack, and performs the visual control of the graphics. Therefore, 1 indicating that it is visible from the stack is taken out as the first variable, and 2 as the graphics number is taken out from the stack as the second variable, and the second graphic is made visible.
[0130]
Thereafter, similarly, the graphics of number 0 are made invisible by sequentially interpreting and executing as PushL0, PushL0, and SetGraphicVisibility, and the graphics of number 1 are made invisible by sequentially interpreting and executing as PushL1, PushL0, and SetGraphicVisibility. Put it in a state.
[0131]
Accordingly, the reception control unit 1050 makes the button labeled “Acceptance has been closed” visible via the bytecode interpreter 1051, and displays the button labeled “Video” and the button labeled “Stereo”. As a result, a display screen as shown in a screen transition 3240 is displayed.
In this way, the data presentation control apparatus 1000 executes the specific handler process at the designated date and time.
[0132]
<Acquisition of current date and time correction>
Hereinafter, acquisition of the current date and time correction in the data presentation control apparatus 1000 will be described in detail. The current date and time is acquired from the TDT stored in the time information storage unit, and the time difference is acquired from the TOT.
FIGS. 10A and 10B are diagrams showing the data structures of TDT and TOT, respectively.
[0133]
In the figure, examples of contents are shown in parentheses.
The TDT is a table that holds data of the current date and time, and holds the current date and time in a format of year, month, day, hour, minute, and second as shown in FIG. In this example, TDT is described as 14: 57: 0 on September 9, 1996, indicating that the time when this TDT was transmitted is this time. Actual data is stored in a BCD code.
[0134]
The TOT describes a plurality of sets of current date and time, country code, and time difference.
Here, the country code is a code determined in advance by the country. The country code is also stored in the data presentation control apparatus 1000 in a fixed manner. Also, the time difference is expressed in hours, minutes, and seconds, with or without +. In this example, the time difference in the UK is 0, and the time difference in Japan is +9 hours. Therefore, the value of the time difference corresponding to the country code that matches the country code stored in the data presentation control apparatus 1000 can be acquired and used for time difference correction.
[0135]
These TDT and TOT have PIDs defined in advance, and are sequentially sent from the data transmission apparatus side as time progresses.
Therefore, the data presentation control apparatus 1000 sets the predetermined PID in the filter condition storage unit 1021 when the current date and time are required, and thereby sets the internal data of the reception data storage unit 1040 via the reception unit 1010 and the TS decoder unit 1020. The information can be stored in the time information storage unit 1044 and used.
[0136]
The reception control unit 1050 acquires the TDT and the TOT in the above-described step S3080, and installs the data presentation control device by referring to the country code fixedly stored in the data presentation control device 1000 in advance in step S3090. To the current time in the selected country.
In step S3100 described above, the reception control unit 1050 compares the date and time specified by the Time_Event_Part of the NE with the current time. In the first embodiment, the date and time described in Time_Event_Part is determined based on the time in the country where the data presentation control device is installed. Regardless of how the reference time is determined, the handler can be correctly activated at a predetermined date and time by correcting the time difference when comparing the reference time with the current time. Here, the time difference in the time difference correction means a difference between reference times based on the current date and time and the date and time described in Time_Event_Part.
[0137]
As described above, according to the data presentation control device according to the present invention, it is possible to start the handler by specifying the date and time, and since the handler is realized by a sequence of byte codes including an instruction set for performing various operations, It is possible to switch contents at a specified date and time, change the button display state, and perform other operations. <Embodiment 2>
Hereinafter, as a second embodiment of the present invention, a data presentation control apparatus that receives a digital broadcast and includes a mechanism that changes an operation corresponding to a user's operation according to a date and time will be described.
[0138]
In addition, about the data transmission apparatus which transmits the digital broadcast in Embodiment 2, since only the content of the navigation information to transmit differs from Embodiment 1, description is abbreviate | omitted. The contents of the navigation information will be described below when the data presentation control device is described.
The data presentation control device according to the present invention in the second embodiment has a feature that the optimum handler is activated according to the operated date and time with respect to the activation of the handler based on the operation of the user by setting the valid period for the handler. The function of the data presentation control device according to the first embodiment is expanded.
[0139]
<Configuration>
The overall configuration of the data presentation control device in the second embodiment is the same as that of the data presentation control device in the first embodiment (see FIG. 1). The data presentation control device 1000 includes a reception unit 1010, a TS decoder unit 1020, and an AV. A decoder unit 1030, a reception data storage unit 1040, a reception control unit 1050, a reproduction unit 1060, a display unit 1070, an audio output unit 1080, and a signal reception unit 1100 are provided. However, only the operation of the reception control unit 1050 is different, and the operation is expanded from that of the first embodiment. This operation will be described later.
[0140]
<Data structure>
The data handled by the data presentation control device of the second embodiment is different from the first embodiment only in the content of navigation information, and the other data structures are the same as those in the first embodiment.
FIG. 11 is a diagram showing a data structure of the navigation information 2170.
[0141]
The navigation information 2170 is an extension of the navigation information 2160 according to the first embodiment, and includes Time_Event_Part 2171, Bytecode_Part 2172, Handler_Part 2173, Graphics_Property_Part 2174, Bitmap_Information_Part 2Ink_Part 2175
[0142]
Time_Event_Part2171 the Time_Event_Part2161 embodiment 1, Bytecode_Part2172 the Bytecode_Part2162 embodiment 1, Graphics_Property_Part2174 the Graphics_Property_Part2164 embodiment 1, Bitmap_Information_Part2175 the Bitmap_Information_Part2165 embodiment 1, Hyperlink_Information_Part2176 identical in Hyperlink_Information_Part2166 the data structure of Embodiment 1 Yes, only some values for explanation are changed (see FIG. 5).
[0143]
The only data structure that differs from that of the first embodiment is Handler_Part 2173, which has a structure in which an effective date is set for each handler number.
Referring to the example of FIG. 11, the handler number 0 of the handler_part is valid sub-handler number 0 until September 9, 1996 14:59:59, September 9, 1996 15:00:00 A valid sub-handler number 2 is associated with the handler number 1 from 0 seconds. A valid sub-handler number 1 is associated with the handler number 1 until September 9, 1996 14:59:59. A valid subhandler number 2 is associated with 15:00:00 on the day. Further, byte code number 0 is associated with sub handler number 0, byte code number 1 is associated with sub handler number 1, and byte code number 2 is associated with sub handler number 2.
[0144]
The effective period is specified by the start date and time and the end date and time, but only one of them can be specified. If neither is specified, it is always considered valid.
12 is a diagram showing a data structure of the navigation information 2270, and FIG. 13 is a diagram showing a data structure of the navigation information 2370.
The structure of the navigation information 2270 and 2370 is the same as the navigation information 2170 described above.
[0145]
<Operation of Reception Control Unit 1050>
Hereinafter, the operation of the reception control unit 1050 in the data presentation control apparatus 1000 having the above-described configuration will be described with reference to the drawings. The second embodiment will be described based on the contents 2100, 2200, and 2300 shown in FIGS. 2 and 3 as in the first embodiment. However, the navigation information 2160, 2260, and 2360 in FIG. 3 are replaced with the navigation information 2170, 2270, and 2370, respectively. Therefore, the transition between contents in FIG. 2 is slightly different.
[0146]
The reception control unit 1050 includes a CPU and a program, and performs processing of content switching operation and handler activation operation. The basic operation is the same as that of the first embodiment (see FIG. 8), and only the handler activation process (S3130) is different, so the handler activation process will be described in detail below.
FIG. 14 is a flowchart illustrating the operation of handler activation processing according to the second embodiment.
[0147]
The handler activation processing includes processing groups S3131 and S3132 for obtaining the current date and time, and processing groups S3133, S3134, and S3135 for performing validity determination and execution for each sub-handler that is a unit having a valid period for the handler to be activated. , S3136, S3137.
Description will be made assuming that the current date is September 9, 1996, 14: 58: 0, and the user has selected the button labeled “Video” while the content 2100 is displayed.
[0148]
The handler activation process starts with acquisition of the current date and time (step S3131). The reception control unit 1050 acquires TDT and TOT from the time information storage unit 1044, acquires the current standard date and time, and corrects the time difference in the country where the data presentation control device 1000 is installed (step S3132). The current date and time acquisition and time difference correction processing are the same as those described in the first embodiment. Thereby, 14: 58: 00: 00 on September 9, 1996 AD is acquired.
[0149]
After acquiring the current date and time and correcting the time difference, the reception control unit 1050 focuses on one sub-handler of the designated handler (step S3133) and determines whether the current date and time is within the valid period (step S3134). The handler specified here refers to one handler determined based on a button selection operation by the user, or a specific handler that is activated by the date and time specification described in the first embodiment.
[0150]
In the example of FIG. 11, the 0th handler is activated when the button labeled “Video” is selected, and attention is paid to the 0th subhandler for the 0th handler shown in Handler_Part2173 (step S3133) Since the valid period is valid until 14:59:59 on September 9, 1996 (step S3134), the bytecode corresponding to the sub-handler is executed (step S3135). Therefore, the 0th bytecode corresponding to the 0th subhandler is executed.
[0151]
As shown in Bytecode_Part 2172, the 0th byte code is described as PushL0 and GotoPage, so the contents of NE_id = 1 and VE_id = 1 described in Hyperlink_Information_Part 2176 are displayed.
After finishing the processing of the 0th sub handler, the reception control unit 1050 determines whether there is a next sub handler (step S3136). Since there is a 2nd sub handler, pay attention to this 2nd sub handler. (Step S3137) Although it is determined whether the current date and time is within the valid period (Step S3134), the execution is skipped because it is outside the valid period, and since there is no further sub-handler, the handler activation process ends.
[0152]
The screen transition state will be described with reference to FIG.
FIG. 15 is a diagram illustrating transition of the display screen in the second embodiment.
A screen transition 3310 is a diagram showing a screen transition on September 9, 1996 at 14: 58: 0. A state in which the display is switched to the content 2200 by the user selecting the “video” button from the content 2100 is shown.
[0153]
Thereafter, when the user selects the button drawn as “Menu” of the content 2200, the handler 0 of the Handler_Part of the navigation information 2270 corresponding to the content 2200 has no valid period limitation. Since the sub handler corresponds and the 0th byte code corresponds to the 0th sub handler, the 0th bytecode is executed, and as a result, the content 2100 is displayed.
[0154]
It is assumed that the time has passed and it has become 15:10:00 on September 9, 1996.
In this state, the handler activation process when the user selects the button labeled “Video” is as follows.
First, the reception control unit 1050 acquires the current date and time (step S3131), and corrects the time difference (step S3132). As a result, 15:01:09 on September 9, 1996 is acquired.
[0155]
After acquiring the current date and time and correcting the time difference, the reception control unit 1050 focuses on one sub-handler of the designated handler (step S3133) and determines whether the current date and time is within the valid period (step S3134). In the example of FIG. 11, the 0th handler is activated when the button labeled “Video” is selected, and attention is paid to the 0th subhandler for the 0th handler shown in Handler_Part2173 (step S3133) is invalid because the valid period is up to 14:59:59 on September 9, 1996 (step S3134). Therefore, the execution is skipped and attention is paid to the second sub-handler (steps S3136 and S3137). Since the validity period is valid from 15:00:00 on September 9, 1996 (step S3134), the bytecode corresponding to the second sub-handler is executed (step S3135).
[0156]
As shown in Bytecode_Part2172, the second byte code is PushL2, PushL1, SetGraphicVisibility, PushL0, PushL0, SetGraphicVisibility, PushL1, PushL0, SetGraphicVisit, The drawn button is made visible, and the button drawn “video” and the button drawn “stereo” are made invisible.
[0157]
After the bytecode is executed, there is no further sub-handler (step S3136), so the handler activation process ends.
Accordingly, as shown in a screen transition 3320 in FIG. 15, the display is switched from the content 2100 to the content 2400 by the user selecting the “video” button.
[0158]
As described above, the data presentation control apparatus 1000 according to the present invention in Embodiment 2 can perform different operations according to the date and time by handling navigation information having a data structure in which valid period information is added to a handler.
<Embodiment 3>
Hereinafter, as a third embodiment of the present invention, a data presentation control device that receives a digital broadcast, and includes a mechanism that performs a specific operation only when graphics designated in advance at a specific date and time are displayed. The data presentation control device will be described.
[0159]
In addition, about the data transmission apparatus which transmits the digital broadcast in Embodiment 3, since only the content of the navigation information to transmit differs from Embodiment 1, description is abbreviate | omitted. The contents of the navigation information will be described below when the data presentation control device is described.
The data presentation control device according to the present invention in the third embodiment is obtained by weighting the operation conditions for the function of performing a specific operation at a specific date and time provided in the data presentation control device in the first embodiment, and has specific graphics. It has a function of performing a specific operation only when it is being displayed.
[0160]
<Configuration>
The overall configuration of the data presentation control device in the third embodiment is the same as that of the data presentation control device in the first embodiment (see FIG. 1). The data presentation control device 1000 includes a reception unit 1010, a TS decoder unit 1020, and an AV. A decoder unit 1030, a reception data storage unit 1040, a reception control unit 1050, a reproduction unit 1060, a display unit 1070, an audio output unit 1080, and a signal reception unit 1100 are provided. However, only the operation of the reception control unit 1050 is different, and the operation is expanded from that of the first embodiment. This operation will be described later.
[0161]
<Data structure>
The data handled by the data presentation control device of the third embodiment is different from the first embodiment only in the contents of the navigation information, and the other data structures are the same as in the first embodiment.
FIG. 16 shows the data structure of navigation information 2180.
[0162]
The navigation information 2180 is an extension of the navigation information 2160 according to the first embodiment, and includes Time_Event_Part2181, Bytecode_Part2182, Handler_Part2183, Graphics_Property_Part2184, Bitmap_Information_Part2in, and Hyper_Part2185 and HyperInpart1885.
[0163]
Bytecode_Part2182 the Bytecode_Part2162 embodiment 1, Graphics_Property_Part2184 the Graphics_Property_Part2164 embodiment 1, Handler_Part2183 the Handler_Part2163 embodiment 1, Bitmap_Information_Part2185 the Bitmap_Information_Part2165 embodiment 1, Hyperlink_Information_Part2186 identical in Hyperlink_Information_Part2166 the data structure of Embodiment 1 Yes (see FIG. 5).
[0164]
The only data structure that differs from that of the first embodiment is Time_Event_Part 2181, which is that the target graphic number is provided in addition to Time_Event_Part 2161 including the start date and time and the handler number of the first embodiment.
Explaining based on the example of FIG. 16, this Time_Event_Part 2181 is a case where it reached 15:00:00 on September 9, 1996, and graphics of graphics numbers 0 and 1 are displayed in a visible state. In the case, it means that the processing of the handler number 2 is started.
[0165]
<Operation control mechanism>
Hereinafter, the operation of the reception control unit 1050 will be described.
FIG. 17 is a flowchart showing the content switching operation and handler activation operation in the third embodiment.
FIG. 17 is the same as FIG. 8, which is a flowchart illustrating the operation of the reception control unit 1050 of the first embodiment, except that step S <b> 5101 is provided corresponding to Time_Event_Part 2181 of the navigation information. Therefore, the description other than step S5101 is omitted.
[0166]
Step S5101 is a process that branches from step S5100 when the time of activation shown in Time_Event_Part2181 reaches 15:00:00 on September 9, 1996, and the target graphics number described in Time_Event_Part2181 is 0. Since it is No. 1, it is determined whether the No. 0 graphic and No. 1 graphic are displayed. If they are displayed, the handler activation process (step S5130) must be executed and displayed. For example, a process of moving the selection pointer in accordance with the user input (step S5110) is executed.
[0167]
Therefore, when the display of the No. 0 graphic and the No. 1 graphic is reached and the time reaches 15:00:00 on September 9, 1996, the reception control unit 1050 sets the No. 2 handler. to start.
Since the navigation information and the reception control unit that controls the presentation of data with reference to the navigation information can control the operation according to the date and time according to the displayed graphics, program production For a user, it becomes possible to realize finer display control in a program in which the graphics display status changes according to the user's operation.
<Embodiment 4>
Hereinafter, as a fourth embodiment of the present invention, a data presentation control apparatus that receives a digital broadcast and includes a mechanism that performs control such as whether or not to display at a specific date and time for each graphic. explain.
[0168]
In addition, about the data transmission apparatus which transmits the digital broadcast in Embodiment 4, since only the content of the navigation information to transmit differs from Embodiment 1, description is abbreviate | omitted. The contents of the navigation information will be described below when the data presentation control device is described.
<Configuration>
The overall configuration of the data presentation control device in the fourth embodiment is the same as that of the data presentation control device in the first embodiment (see FIG. 1), and the data presentation control device 1000 includes a receiving unit 1010, a TS decoder unit 1020, and an AV. A decoder unit 1030, a reception data storage unit 1040, a reception control unit 1050, a reproduction unit 1060, a display unit 1070, an audio output unit 1080, and a signal reception unit 1100 are provided. However, only the operation of the reception control unit 1050 is different from that of the first embodiment. This operation will be described later.
[0169]
<Data structure>
The data handled by the data presentation control device of the fourth embodiment is different from the first embodiment only in the contents of the navigation information, and the other data structures are the same as in the first embodiment.
FIG. 18 is a diagram showing a data structure of the navigation information 6160.
[0170]
The navigation information 6160 corresponds to the navigation information 2160 in the first embodiment, and includes Bytecode_Part 6162, Handler_Part 6163, Graphics_Property_Part 6164, Bitmap_Information_Part 6165, Hyperlink_Information 61, and Hyperlink_Part 61.
[0171]
Bytecode_Part6162 the Bytecode_Part2162 embodiment 1, Graphics_Handler_Part6163 the Handler_Part2163 embodiment 1, Bitmap_Information_Part6165 the Bitmap_Information_Part2165 embodiment 1, Hyperlink_Information_Part6166 are identical in Hyperlink_Information_Part2166 the data structure of the first embodiment (see FIG. 5).
[0172]
The data structure is different from that of the first embodiment in that Time_Event_Part is not in this embodiment and that the structure of Graphics_Property_Part is different.
Graphics_Property_Part 6164 is obtained by adding a set of date / time and display state information to Graphics_Property_Part 2164 including the graphics number, graphics type, coordinates, handler number, and initial state of the first embodiment. Note that it is possible to specify a plurality of sets of date / time and display state.
[0173]
Explaining based on the example of FIG. 18, Graphics_Property_Time_Event_Part 6164 specifies a set of date and time and a display state for each of graphics numbers 0, 1 and 2, and a button of graphics number 0 and graphics number 1 The number button is changed to invisible at 15:00:00 on September 9, 1996, and the button of graphics number 2 is changed to visible at 15:00:00 on September 9, 1996. Indicates the meaning.
[0174]
<Operation control mechanism>
Hereinafter, the operation of the reception control unit 1050 will be described based on the data example of FIG. Note that description of operations similar to those described in Embodiment 1 is omitted.
FIG. 19 is a flowchart showing the content switching operation and handler activation operation in the fourth embodiment, and FIG. 20 is a diagram showing transition of the display screen in the fourth embodiment.
[0175]
The reception control unit 1050 first displays the first content from information defined as a set of VE_id and NE_id on the PMT stored in the system information storage unit 1043 (step S6510). Here, the subsequent operation will be described assuming that VE_id = 0 and NE_id = 0 are described in the PMT.
Further, the description starts assuming that the current date and time is 14: 59: 00: 00 on September 9, 1996.
[0176]
The reception control unit 1050 acquires the current date and time and corrects the time difference (steps S6520 and S6530). Here, as shown in Graphics_Property_Part 6164, the graphics drawn as “video” with graphics number 0 should be visible in the initial state and invisible after 15:00:00 on September 9, 1996. Therefore, the reception control unit 1050 determines that it should be visible at 14: 59: 00: 00 on September 9, 1996, which is the current date and time (steps S6540 and S6550), and makes the graphics visible (step S6540). S6560). Next, paying attention to the graphic drawn as “stereo” with the graphic number 1 (steps S6580 and S6540), it is determined that it should be visible in the same manner (step S6550), and the graphic is made visible (step S5660). . Furthermore, paying attention to the graphic with the graphic number 2 “acceptance has been closed” (steps S 6580 and S 6540), the initial state of this graphic is invisible, September 9, 1996, 15:00 Since it should be visible after the minute 0 second, the reception control unit 1050 determines that it should be invisible at 14:59:00 on September 9, 1996, which is the current date and time (step S 6550). The graphics are made invisible (step S6570).
[0177]
This state is like a screen transition 6810 shown in FIG.
After finishing the graphics display processing, the reception control unit 1050 moves the selection pointer in accordance with the user's input (step S6590). When the button is selected and confirmed by the user (step S6600), The handler corresponding to the selected button is activated (step S6610).
[0178]
Suppose that time has passed and it became 15:00:00 on September 9, 1996.
The reception control unit 1050 acquires the current date and time and corrects the time difference (steps S6520 and S6530). Here, as shown in Graphics_Property_Part 6164, the graphics drawn as “video” with graphics number 0 should be visible in the initial state and invisible after 15:00:00 on September 9, 1996. Therefore, the reception control unit 1050 determines that it should be invisible at 15:00:00 on September 9, 1996, which is the current date and time (steps S6540 and S6550), and makes the graphics invisible (step S6540). S6570). Next, paying attention to the graphic drawn as “stereo” of the graphics number 1 (steps S6580 and S6540), it is determined that it should be made invisible in the same manner (step S6550), and the graphics is made invisible (step S5670). . Furthermore, paying attention to the graphic with the graphic number 2 “acceptance has been closed” (steps S 6580 and S 6540), the initial state of this graphic is invisible, September 9, 1996, 15:00 Since it should be visible after the minute 0 second, the reception control unit 1050 determines that it should be visible at 15:00:00 on September 9, 1996, which is the current date and time (step S 6550). The graphics are made visible (step S6560).
[0179]
This state is like a screen transition 6820 shown in FIG.
As described above, the data presentation control device according to the embodiment can control whether to display at a specific date and time for each graphic.
<Embodiment 5>
Hereinafter, as a fifth embodiment of the present invention, a data presentation control apparatus that receives a digital broadcast, and adjusts the start date and time of a program selected by a user and starts the program after reaching a specific date and time. A data presentation control apparatus having a mechanism for performing the above will be described.
[0180]
In addition, about the data transmission apparatus which transmits the digital broadcast in Embodiment 5, since only the content of the navigation information to transmit differs from Embodiment 1, description is abbreviate | omitted. The contents of the navigation information will be described below when the data presentation control device is described.
<Configuration>
The overall configuration of the data presentation control device in the fifth embodiment is the same as that of the data presentation control device in the first embodiment (see FIG. 1), and the data presentation control device 1000 includes a receiving unit 1010, a TS decoder unit 1020, and an AV. A decoder unit 1030, a reception data storage unit 1040, a reception control unit 1050, a reproduction unit 1060, a display unit 1070, an audio output unit 1080, and a signal reception unit 1100 are provided. However, only the operation of the reception control unit 1050 is different from that of the first embodiment. This operation will be described later.
[0181]
<Data structure>
The data handled by the data presentation control device of the fifth embodiment is different from the first embodiment only in the contents of the navigation information, and the other data structures are the same as in the first embodiment.
FIG. 21 is a diagram showing a data structure of the navigation information 7160.
[0182]
The navigation information 7160 corresponds to the navigation information 2160 according to the first embodiment, and includes Time_Event_Part 7161, Bytecode_Part 7162, Handler_Part 7163, Graphics_Property_Part 7164, Bitmap_Information_Part 7165, and Hyper_Part 7165 and Hyper_Part 7165.
[0183]
Time_Event_Part7161 the Time_Event_Part2161 embodiment 1, Bytecode_Part7162 the Bytecode_Part2162 embodiment 1, Graphics_Handler_Part7163 the Handler_Part2163 embodiment 1, Graphics_Property_Part7164 the Graphics_Property_Part2164 embodiment 1, Bitmap_Information_Part7165 the Bitmap_Information_Part2165 embodiment 1, Hyperlink_Information_Part7166 embodiment 1 Hyperlink_Information_Part2166 and de It is identical in data structure (see Figure 5).
[0184]
The data structure is different from that of the first embodiment in that the NE start date and time is added to the navigation element in addition to NE_id.
Referring to the example of FIG. 21, this NE start date / time indicates that it will be executed after 14:00:00 on September 9, 1996. Even if the content corresponding to the navigation element whose NE_id is 0 is selected to be displayed before 14:00:00, the data presentation control apparatus 14:00 on September 9, 1996 Wait until the second is reached, and display control is performed with reference to this navigation element whose NE_id is 0 after reaching the date and time.
[0185]
<Operation control mechanism>
Hereinafter, the operation of the reception control unit 1050 will be described based on the data example of FIG. Note that description of operations similar to those described in Embodiment 1 is omitted.
FIG. 22 is a flowchart showing the content switching operation and handler activation operation in the fifth embodiment.
[0186]
Also, the current date and time is 13: 59: 00: 00 on September 9, 1996, and control is switched from a certain content to a content with NE_id = 0 and VE_id = 0 by a user's button selection confirmation operation. The explanation starts from the state.
When the reception control unit 1050 determines that the content has been switched (step S7510), the reception control unit 1050 acquires the current date and time and corrects the time difference (steps S7520 and S7530).
[0187]
Next, the reception control unit 1050 refers to the navigation element whose NE_id is 0. Since the NE start date and time is described as 14:00:00 on September 9, 1996, the current date and time are obtained again to correct the time difference. The process returns (steps S7540, S7520, S7530).
Steps S7540, S7520, and S7530 are repeated until the time elapses until 19:00 on September 9, 1996, and the time of 19:00 on September 9, 1996 is reached ( In step S7540), the content is displayed (step S7550).
[0188]
Subsequent processing (steps S7560 to S7650) is the same as steps S3040 to S3130 in the first embodiment, and thus description thereof is omitted here.
In this way, the reception control unit 1050 can present the content from when it reaches a predetermined date and time, thereby enabling the digital broadcast system to control the program progress time to some extent while maintaining the interactivity. Is realized.
<Embodiment 6>
Hereinafter, as a sixth embodiment of the present invention, there is provided a data presentation control device that receives a digital broadcast, and has a mechanism that performs a control so that a specific operation is performed when a predetermined time has elapsed since the start of presentation of one content. The data presentation control device provided will be described.
[0189]
In addition, about the data transmission apparatus which transmits the digital broadcast in Embodiment 6, since only the content of the navigation information to transmit differs from Embodiment 1, description is abbreviate | omitted. The contents of the navigation information will be described below when the data presentation control device is described.
<Configuration>
The overall configuration of the data presentation control device in the sixth embodiment is the same as that of the data presentation control device in the first embodiment (see FIG. 1). The data presentation control device 1000 includes a receiving unit 1010, a TS decoder unit 1020, and an AV. A decoder unit 1030, a reception data storage unit 1040, a reception control unit 1050, a reproduction unit 1060, a display unit 1070, an audio output unit 1080, and a signal reception unit 1100 are provided.
[0190]
However, the time information storage unit 1044 in the received data storage unit 1040 stores the current time measured by a timer unit (not shown) provided in the data presentation control device. The current time measured by the time measuring unit is made up of units of hours, minutes, seconds, and frames, and represents, for example, a time of 11 hours 20 minutes 30 seconds 15 frames. Here, one frame regarding time indicates 1/30 second. However, one frame can be determined as 1/25 second or the like, and the frame is a value representing time in such a predetermined unit.
[0191]
The operation of the reception control unit 1050 is different from that of the first embodiment, but this operation will be described later.
<Data composing display screen and contents>
A screen on which content is displayed by the data presentation control apparatus 1000 having the above-described configuration and data constituting the content will be described with reference to FIGS. 23, 24, and 25.
[0192]
FIG. 23 is a diagram illustrating an example of a screen displayed by the data presentation control apparatus 1000 according to the sixth embodiment of the present invention.
The figure shows a screen relating to a quiz program. A content 8100 indicating a quiz, a content 8200 indicating correct answer, a content 8300 indicating incorrect answer, and a content 8400 indicating time-out are shown.
[0193]
Now, when the content 8100 indicating the quiz “What is red fruit?” Is displayed on the display screen, when the user selects and determines the “apple” button 8110, the display screen is displayed as indicated by an arrow 8010. Is switched from the content 8100 to the display of the content 8200 indicating the correct answer. Similarly, when the content 8100 is displayed on the display screen and the user selects and determines the “mandarin orange” button 8120, the display screen is incorrect from the content 8100 as indicated by an arrow 8020. It is switched to the display of the content 8300 indicating this.
[0194]
Further, when 10 seconds have passed since the content 8100 was presented, the display is switched to the display of the content 8400 indicating that the time has expired.
<Data transmission device>
In order to realize the display switching by the interactive operation as described above, data constituting each content is transmitted as described below from the digital broadcast data transmitting apparatus according to the present invention in the sixth embodiment.
[0195]
Note that the data transmission apparatus according to the present invention in Embodiment 6 is the same in configuration as the data transmission apparatus 101 shown in the description of the related art described above. However, as will be described later, the content of the navigation information to be transmitted includes information that enables control by time factors, unlike the navigation information in the description of the related art.
[0196]
FIG. 24 is a diagram schematically showing data transmitted from the data transmitting apparatus side.
FIG. 24 shows data constituting the content shown in FIG. 23, and data 8000 is repeatedly transmitted from the data transmission apparatus at regular intervals. The transmitted data 8000 includes image data 8150, 8250, 8350, 8450 and navigation information 8160, 8260, 8360, 8460.
[0197]
Each of the image data 8150, 8250, 8350, and 8450 is a background image of each of the contents 8100, 8200, 8300, and 8400 displayed on the display screen of the data presentation control apparatus 1000.
In addition, the data transmitting apparatus multiplexes the data 8000 and repeatedly transmits the data at fixed time intervals. The state of this transmission is the same as that shown in FIG. 36 in the description of the related art. Data, image data, and navigation information are each replaced with the contents shown in FIG. 24, and the state of multiplexing is the same as that shown in FIG. 37 in the description of the related art.
[0198]
<Detailed explanation of navigation information>
Hereinafter, the navigation information simplified in FIG. 24 will be described in detail with reference to FIG.
FIG. 25 shows the data structure of navigation information 8160.
The navigation information 8160 includes Time_Event_Part 8161, Bytecode_Part 8162, Handler_Part 8163, Graphics_Property_Part 8164, Bitmap_Information_Part 8165, Hyperlink_Information_Part 8166.
[0199]
The data structure of the navigation information 8160 is almost the same as the data structure of the navigation information 2160 in the first embodiment, but only the Time_Event_Part 8161 is different.
Time_Event_Part 8161 corresponds to the portion represented as Time_Event in FIG. 24, and is a portion in which a description for starting a specific handler is made when a specified time has elapsed from the time of starting presentation of content. In the example of FIG. The second handler is activated when 10 seconds have elapsed since the start of content presentation. A plurality of elapsed times until activation may be described for one handler. The time specification is described in hours, minutes, seconds, and frames.
[0200]
Bytecode_Part 8162 is a part in which a byte code is described. In the example of FIG. 25, the byte code 0 is described as PushL0, GotoPage, and indicates that the display is switched to the content with the link number 0. The number byte code is described as PushL1, GotoPage, indicating that the display is switched to the content whose link number is 1, and the number 2 byte code is described as PushL2, GotoPage, and the link number is 2 Indicates that the display is switched to the content.
[0201]
Bitmap_Information_Part 8165 describes the contents of the bitmap displayed on the button corresponding to the graphics number. In the example of FIG. 25, the bitmap number “1” is drawn for the 0th graphic. A graphic drawn as “mandarin orange” is associated with the graphics.
[0202]
Graphics_Property_Part 8164 is information constituting the on-screen display graphics. In the example of FIG. 25, the graphics type is a button, the graphics number is a value of 0 or 1, and the graphics included in the aforementioned Bitmap_Information_Part Corresponding to the number, the set of x coordinate and y coordinate for displaying each of the buttons 0 and 1 is (20, 20), (20, 60), and the buttons 0 and 1 are selected and confirmed. The numbers of the handlers that are activated when the contents are displayed are 0 and 1, respectively, and the initial states of the buttons No. 0 and No. 1 in the initial state where the content is displayed are visible.
[0203]
Hyperlink_Information_Part 8166 is a part in which the ID of the material constituting the linked content is described, and a link number is added as an identifier for identifying each content as a group. In the example of FIG. 25, VE_id = 1 is described as the link destination of the number 0, indicating that one content composed of the image data with the number VE_id is the link destination, and the link of the number 1 The destination is content composed of image data with VE_id 2nd, and the second link destination indicates content composed of image data with VE_id 3rd.
[0204]
The fact that NE_id is 0 in the upper part of FIG. 25 means that the navigation information described here is a navigation element having an ID of 0.
This navigation information with NE_id 0 constitutes one content together with image data displaying a quiz with VE_id 0.
[0205]
With these data, the data presentation control device 1000 displays another content on the screen when the user selects a button for the displayed content, and also describes it in Time_Event_Part from the start of the content display. If the set time has elapsed, it is possible to realize control such that a specific operation is executed.
[0206]
<Operation of data presentation control device>
Hereinafter, the operation of the reception control unit 1050 in the data presentation control apparatus 1000 will be described using the drawings based on the above-described data structure.
FIG. 26 is a flowchart showing the content switching operation and the handler activation operation. FIGS. 27A and 27B show the case where the user answers the quiz in time and the case where the user answers the quiz. It is a figure which shows the transition of a display screen with the case where it cannot answer within time.
[0207]
The process control of the reception control unit 1050 includes an initial process S8510 for specifying content to be displayed first at the start of program reception, and processing groups S8530 and S8540 that operate only when it is determined that the content has been switched by the determination process S8520. , S 8550, S 8560, processing groups S 8580, S 8590 that operate when it is determined that there is a handler to be activated by specifying the date and time in the determination process S 8570, processing groups S 8600, S 8610 corresponding to the user input, and handler activation This is realized from the process S8620 of executing
[0208]
Information about the first content is defined as a set of VE_id and NE_id in the PMT stored in the system information storage unit 1043. Here, the subsequent operation will be described assuming that VE_id = 0 and NE_id = 0 are described in the PMT.
First, VE_id = 0 and NE_id = 0 are acquired from the PMT as information of content displayed first in the quiz program (step S8510).
[0209]
Since it is the first content, it is handled as being switched (step S8520), and the content is displayed (step S8530).
The content is displayed by using the image data 8150 indicated by VE_id = 0 as the background and on-screen display graphics according to the contents of the navigation element of NE_id = 0. In accordance with the contents described in NE's Graphics_Property_Part 8164 and Bitmap_Information_Part 8165 shown in FIG. , 60) in a visible state.
[0210]
Accordingly, a display screen as shown in a screen transition 8910 is displayed.
If the NE time_Event_Part has a description for starting the handler by specifying the elapsed time from the start of the display of the content after the content is displayed (step S8540), the time specification flag is used to perform the handler start processing according to the elapsed time. Is set to 1 (step S8550), and if there is no description of the elapsed time specification, the time specification flag is set to 0 (step S8560). In the NE Time_Event_Part shown in FIG. 25, there is a description that the second handler is activated when 10 seconds have elapsed from the start of content display. In this case, the time designation flag is set to 1 (step S8550). .
[0211]
If the time designation flag is 1 (step S8570), the elapsed time from the start of content display is counted (step S8580), and it is determined whether or not the elapsed time has reached the time designated by Time_Event_Part 8161 of NE. (Step S8590) If the designated time has not been reached, the process moves to a process of moving the selection pointer in accordance with the user input (Step S8600). If any button is selected (Step S8610), the handler is moved. Is activated (step S8620).
[0212]
Here, first, an example will be described in which the user answers in 5 seconds from the start of the display of the content displaying the quiz.
Since 10 seconds have not yet elapsed (steps S8580 and S8590), the process moves to a process of moving the selection pointer in accordance with the user input (step S8600), and when 5 seconds have elapsed from the start of content display, the user Is selected as an “apple” (step S8610), Graphics_Property_Part8164 is referred to and the 0th handler is activated (step S8620). The 0th handler process is composed of the 0th byte code, and the content of the 0th bytecode is PushL0 and GotoPage, and is indicated by VE_id = 1 which is the 0th link destination described in Hyperlink_Information_Part8166. It will be switched to content. Note that the reception control unit 1050 executes the byte code using the byte code interpreter 1051.
[0213]
After the activation of the handler (step S8620), the process returns to the determination process (step S8520) of whether or not the content has been switched.
The display screen at this time is an image indicating that the answer is correct as indicated by a screen transition 8920.
[0214]
Next, a case will be described as an example where the user fails to answer even after 10 seconds have elapsed since the start of the display of the content displaying the quiz. It is assumed that the screen shown at screen transition 8930 is initially displayed.
When 10 seconds have elapsed from the start of content display (steps S8580 and S8590), the second hand and the like are activated (step S8620). The second handler process is composed of the second byte code, and since the content of the second byte code is PushL2 and GotoPage, it is indicated by VE_id = 3, which is the second link destination described in Hyperlink_Information_Part8166. It will be switched to content.
[0215]
After the activation of the handler (step S8620), the process returns to the processing for determining whether the content has been switched (step S8520). Since the switching has been performed, new content is displayed (step S8530).
In this way, an image indicating that time has expired is displayed as shown in a screen transition 8940.
[0216]
In this way, the data presentation control apparatus 1000 executes a specific handler process when a predetermined time has elapsed since the start of content display.
<Embodiment 7>
Hereinafter, Embodiment 7 will be described in detail with reference to the drawings.
The data presentation control information editing apparatus according to the present invention in Embodiment 7 is an apparatus that displays the correlation between contents at the date and time specified by the user.
[0217]
<Configuration>
FIG. 28 is a block diagram showing a configuration of the data presentation control information editing apparatus according to the seventh embodiment of the present invention.
The data presentation control information editing apparatus 10000 includes a date / time input reception unit 10010, a data storage unit 10020, a content correlation determination unit 10030, and a content correlation display unit 10040.
[0218]
The date / time input receiving unit 10010 receives an input by a user of a reference date / time for displaying a correlation between contents. The date and time directly input by the user is stored in an internal register.
The data storage unit 10020 stores navigation information. The data structure of the navigation information is the same as the data structure in the second embodiment (see FIG. 11).
[0219]
The content correlation determination unit 10030 refers to the Handler_Part, Bytecode_Part, and Hyperlink_Information_Part in the navigation information stored in the data storage unit 10020, and corresponds to the sub-handler that is valid at the specified date and time acquired by the date and time input reception unit 10010. By examining the contents of the code, NE_id and VE_id for the content to be linked are output to a register in the data presentation control information editing apparatus by a sub-handler effective at the date and time.
[0220]
The content correlation display unit 10040 displays the graphic representing the content and the line segment representing the link relationship between the content on the display screen.
<Operation>
Hereinafter, specific operations of the data presentation control information editing apparatus 10000 having the above-described configuration will be described based on the navigation information examples (FIGS. 11, 12, and 13) shown in the second embodiment.
[0221]
FIG. 29 is a flowchart showing the operation of the data presentation control information editing apparatus 10000.
First, the content correlation display unit 10040 refers to the Handler_Part, Bytecode_Part, and Hyperlink_Information_Part in the navigation information stored in the data storage unit 10020, and checks the contents of the bytecodes corresponding to all the sub handlers to detect GotoPage. As a result, NE_id and VE_id for the content that can be all link destinations are acquired (steps S10110, S10120, and S10130), and the link relationship between the content is linked to the graphic representing the content and the content. (S10140, S10150). However, the line segment between contents is displayed with a broken line indicating that the link is invalid. Further, generally well-known icons are used for graphics representing content, and NE_id and VE_id which are IDs of elements constituting the content are also appended to the icons.
[0222]
FIG. 30 is a diagram showing a display screen displayed by the data presentation control information editing apparatus 10000.
After the end of step 10150, display screen 10300 is displayed.
Next, the date / time input reception unit 10010 receives an input of the user's date / time (step S10160). Here, it is assumed that the user inputs 14: 59: 00: 00 on September 9, 1996.
[0223]
The content correlation determination unit 10030 first refers to the Handler_Part 2173 of the navigation information 2170 whose NE_id is 0, and determines that the 0th sub-handler is valid at 14: 59: 00: 00 on September 9, 1996 (step S10170, S10180), PushL0 and GotoPage that perform the link of number 0 corresponding to the content of the number 0 byte code corresponding to this are detected, and the link to the content indicated by NE_id = 1 and VE_id = 1 with the link number of 0 Are valid, NE_id = 1 and VE_id = 1 are stored in the internal register (step S10190).
[0224]
Thereafter, paying attention to the 1st sub-handler and 2nd sub-handler of the navigation information 2170, and then paying attention to the 0th sub-handler of the navigation information 2270 and the 0th sub-handler of the navigation information 2370, the same processing is performed. (Steps S10170, S10180, S10190, S10200).
As a result, the content correlation display unit 10040 connects the graphics indicating the content with a solid line based on the information of the link effective on September 9, 1996 at 14: 59: 0 (step S10210).
[0225]
In this state, display screen 10400 is displayed.
As described above, the data presentation control information editing apparatus according to the seventh embodiment displays an expression that can identify whether the link between contents is valid or invalid at the date and time designated by the user.
<Eighth embodiment>
Hereinafter, an eighth embodiment of the present invention will be described in detail with reference to the drawings.
[0226]
The eighth embodiment relates to a data presentation control information editing apparatus to which the function of the data presentation control information editing apparatus in the seventh embodiment is expanded and a function for updating information for controlling data presentation is added.
<Configuration>
FIG. 31 is a block diagram showing the configuration of the data presentation control information editing apparatus according to the eighth embodiment of the present invention.
[0227]
The data presentation control information editing apparatus 10500 includes a date / time input reception unit 10010, a data storage unit 10020, a content correlation determination unit 10030, a content correlation display unit 10040, a non-link destination content selection reception unit 10510, and a data update unit 10520. ing.
The date / time input reception unit 10010, the data storage unit 10020, the content correlation determination unit 10030, and the content correlation display unit 10040 are the same as those in the seventh embodiment, and thus description thereof is omitted.
[0228]
The non-link destination content selection receiving unit 10510 causes the user to select content that is prohibited from being presented by a link, and outputs the NE_id and VE_id of the content to a register inside the data presentation control information editing apparatus. The content selection by the user is performed by, for example, instructing an icon representing one content among a plurality of icons representing the content displayed by the content correlation display unit 10040 with a selection pointer.
[0229]
The data update unit 10520 determines the validity period based on the date and time acquired by the date and time input reception unit 10010 for the sub handler associated with the bytecode describing the link to the content selected by the non-link destination content selection reception unit. By newly setting the information, the contents of the data storage unit 10020 are updated.
Therefore, the navigation information is updated by the data updating unit 10520 so that the sub handler having a link to the content selected by the user becomes invalid after the designated date and time.
[0230]
<Operation>
Hereinafter, the data presentation control information editing apparatus 10500 having the above-described configuration will be described with reference to FIGS. 30, 32, and 359 based on data examples used in the seventh embodiment.
FIG. 32 is a flowchart illustrating the operation of the data presentation control information editing apparatus 10500 according to the eighth embodiment.
[0231]
In the flowchart of FIG. 32, the same step number is assigned to the same process as the flowchart showing the operation of the data presentation control information editing apparatus 10000 in the seventh embodiment. Here, step S10610 and subsequent steps different from those in the seventh embodiment will be described from the point in time when the display screen 10400 shown in FIG. 30 is displayed. If the user selects the icon 10420 indicating the content, the non-link destination content selection receiving unit 10510 receives this selection, and stores the NE_id and VE_id of the selected content in a register inside the data presentation control editing apparatus ( Step S10610).
[0232]
After the non-link destination content selection accepting unit 10510 accepts the user's selection, the data update unit 10520 refers to the navigation information Handler_Part, Bytecode_Part, and Hyperlink_Information_Part of the navigation information in the data storage unit 10020 based on the NE_id and VE_id in the register. As a result, the sub-handler corresponding to the operation for switching to the content selected by the user is searched (step S10620), and the date / time input receiving unit 10010 receives the end date / time of the valid period of the sub-handler first. The date is updated according to the current date (step S10630).
[0233]
If the user selects content with NE_id = 1 and VE_id = 1, the data update unit 10520 refers to the Hyperlink_Information_Part 2176 of the navigation information 2170 and determines that the link with the link number 0 needs to be invalidated, and the Bytecode_Part 2172 And Handler_Part 2173, the 0th sub-handler corresponding to the 0th byte code describing the link of the 0th link number is detected, and the effective period is 14: 59: 0 on September 9, 1996 Update by.
[0234]
The flowchart of FIG. 32 shows only the sub-handler effective period (step S10630), but the process may be repeated after step S10630 by returning to step S10170 or step S10160. As a result, the user can select the contents that the user wants not to be linked to at a predetermined date and time.
[0235]
As described above, the data presentation control information editing apparatus according to the eighth embodiment is based on the designation of the date and time made by the user and the selection of the content made by the user after the date and time when the link to the content is designated. Update the navigation information so that it is not valid.
As mentioned above, although the data presentation control apparatus and the data presentation control information editing apparatus were demonstrated as embodiment which concerns on this invention, it cannot be overemphasized that this invention is not restricted to the form shown to this embodiment. That is,
(1) In the first to sixth embodiments, examples of instructions are shown as byte codes. However, the instructions are not limited to these instructions, and may be various instructions for executing various operations. For example, it may be an instruction for executing an operation related to hardware such as turning off the power of the device.
(2) In the first to sixth embodiments, the time information is set for the handler, subhandler, and graphics as one unit, but may be set collectively for a plurality of handlers, subhandlers, and graphics. Good.
(3) Although the content in Embodiments 1 to 6 is composed of still images and on-screen display graphics, the content may be composed of moving images and audio. The moving image and audio are multiplexed and transmitted according to the MPEG2 system standard on the data transmitting apparatus side.
(4) Although the description of graphics is shown as Graphics_Property_Part in the navigation information in the first to sixth embodiments, Audio_Property_Part is provided to describe the audio to be reproduced in BGM, and content presentation is presented on the data presentation control device side accordingly You may make it add an audio | voice to the content of. In this case, the date and time information that is valid for the information for audio playback that is an element of the Audio_Property_Part may be determined to enable control of audio playback by date and time.
(5) In the first and third embodiments, the example in which the handler is activated when the presentation date / time is reached has been described. However, when the content is switched, the presentation date / time described in Time_Event_Part in the navigation information that configures the content If it has passed, the handler described in the Time_Event_Part may be activated. Also, there may be a plurality of sets of date / time and handler number in Time_Event_Part. The same applies to the display of graphics in the fourth embodiment. If the date and time described has passed, the graphics may be changed to a display state corresponding to the date and time.
(6) The acquisition of the current time of the data presentation control device in the first to fifth embodiments is performed by receiving the data indicating the transmitted current time. However, a timing mechanism is provided in the data presentation control device. The current date and time may be acquired from this timing mechanism. In this case, the time difference correction is to correct the difference between the reference time of the date and time indicated in the transmitted navigation information and the reference time of the current date and time acquired from the timing mechanism in the data presentation control device. .
(7) Regarding the control based on the date and time in the second to fifth embodiments, for example, as shown in the sixth embodiment in which the control is based on the relative elapsed time from the start of content display, It is good also as controlling by specific time.
(8) In the first to fifth, seventh, and eighth embodiments, the date / time is handled with the resolution of year / month / day / hour / minute / second. However, the date / time is any one of year, year / month, year / month / day, year / month / day, and year / month / day / hour. Alternatively, it may be handled with a resolution smaller than a second.
(9) In the first to sixth embodiments, an example in which VE_id is described as an element of Hyperlink_Information_Part has been described. However, instead of VE_id, a pair of PID and stream_id may be described. In this case, when the content is switched by the user's operation or the like, the data presentation control apparatus 1000 sets the PID or the like in the filter condition storage unit 1021 so that the moving image data is being transmitted. Separated from and displayed.
(10) Although the elapsed time is counted in the data presentation control device in the sixth embodiment, it may be timed by receiving information indicating the current time as in the first to fifth embodiments. In this case, as in the first to fifth embodiments, the data transmitting apparatus transmits information indicating the current time.
(11) The method of inputting instructions and the like by the user in the first to eighth embodiments may be determined by using a remote controller, a mouse, or another input device.
(12) Although the date and time input by the user in the seventh and eighth embodiments is directly input as a numerical value from the keyboard, a numerical value is indirectly input by displaying some candidate values and selecting them from among them. You may do it.
(13) In the seventh and eighth embodiments, the solid line or the broken line segment connecting the contents is used as the figure expressing the link relation between the contents. However, the present invention is not limited to this, and other figures may be used. Moreover, it is good also as a structure which uses a transparent line segment for the display of an invalid link at the designated date, ie, does not display the figure of a link. Moreover, you may use arbitrary figures also about the icon for showing a content. Furthermore, icons representing the linked contents may be displayed in different graphics so that the case where the link relationship at the specified date and time is valid and the case where it is invalid can be identified.
(14) In Embodiments 7 and 8, it is determined whether or not linked by the byte code of GotoPage, and the correlation of contents is displayed based on this determination, but the display state is further changed as in the above-mentioned Set GraphicsVisibility The correlation of the display state of the content may be displayed by searching for an instruction to perform.
(15) In the eighth embodiment, the valid period for the sub-handler corresponding to the bytecode that realizes the link to the content selected by the user is updated, but the state of the graphics associated with the sub-handler The control date and time may be updated so as to be invisible at a predetermined date and time. However, in order to realize this, navigation information having the data structure shown in the fourth embodiment needs to be stored in the data storage unit 10020.
(16) The data presentation control editing apparatus according to the seventh and eighth embodiments displays the correlation between contents at the date and time designated by the user, and is the navigation information indicating the state between the contents at the specific date and time in the first embodiment. Although what was used was demonstrated as an example, it is good also as a structure which displays the correlation of a content based on the navigation information shown to Embodiment 2-5.
(17) Processing procedure of the reception control unit 1050 of the data presentation control device according to the first to sixth embodiments (the procedure of the flowcharts of FIGS. 8, 14, 17, 19, 22, and 26) and the seventh and eighth embodiments. The processing procedures (FIGS. 29 and 32) of the data presentation control information editing apparatuses 10000 and 10500 in FIG. 9 may be realized by a machine language program and recorded on a recording medium for distribution / sales. Such a recording medium includes an IC card, an optical disk, a flexible disk, a ROM, and the like. The machine language program recorded on these is used by being installed in general-purpose hardware. The general-purpose hardware here is a general personal computer or the like, and sequentially executes the installed machine language program, and the data presentation control device shown in the first to sixth embodiments and the data shown in the seventh and eighth embodiments. Any function of the presentation information control device is realized.
[0236]
【The invention's effect】
As is clear from the above description, the data presentation control device according to the present invention includes a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program, and a time for controlling the presentation of the multimedia data. A data presentation control device for receiving control time information, which is information, and controlling presentation of multimedia data, the data storage means, the multimedia data and the control time information being transmitted to the program Is received and stored in the data storage means, and the reception is performed by separating and extracting desired data from the transmitted data, and the time-dependent information acquisition for acquiring the current time-dependent information Means for determining whether or not to control the presentation of the multimedia data by comparing the temporal information and the control time information. And time information comparison determining means, characterized in that it comprises a presentation control means for controlling the presentation of the multimedia data based on the determination result of the time information comparison determining unit.
[0237]
With the above configuration, since it is possible to control whether or not to present multimedia data by comparing the time information used for control and information related to the current time, data presentation that performs data presentation on the condition of time A control device is realized.
Further, the control time information may be repeatedly transmitted from the program transmission device.
[0238]
With the above configuration, even when a user tries to display arbitrary content at an arbitrary time by an operation such as designation of a link destination, data presentation control that quickly acquires time information used for control of the corresponding content A device is realized.
The data presentation control device further includes a link instruction accepting unit that accepts a presentation instruction for another content by a user operation, and a link execution unit that presents the content according to the presentation designation accepted by the link instruction accepting unit. It can also be.
[0239]
With the above-described configuration, a data presentation control apparatus that enables interactive operation by a user for content presentation is realized.
In addition, the receiving unit may further extract and extract the temporal information from the transmitted data, and the temporal information acquisition unit may acquire the temporal information from the receiving unit.
[0240]
With the above configuration, since the time is measured by receiving the time-lapse information, the operation timing of presenting multimedia data, etc. is the same as that scheduled by the program producer.
The data storage means stores a time difference value that is a difference in reference time between the time-dependent information and the control time information, and the time information comparison and determination means corrects the time difference with reference to the time difference value. The comparison may be performed.
[0241]
With the above configuration, even if there is a time difference between the control time for controlling the presentation of multimedia data and the reference time of the time-lapse information, the multimedia is almost at the same timing as the program producer scheduled. A data presentation control apparatus that performs operations such as data presentation is realized.
In addition, the receiving unit may further extract and extract the time difference value and the temporal information from the transmitted data, and the temporal information acquisition unit may acquire the temporal information from the receiving unit. You can also.
[0242]
With the above configuration, a data presentation control apparatus that performs operations such as presentation of multimedia data at exactly the same timing as scheduled by the program producer even when there is the time difference is realized.
A data presentation control apparatus according to the present invention is a data presentation control apparatus that receives a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program and controls the presentation of the multimedia data. The storage means, the multimedia data, a command for executing a predetermined operation, and control time information which is time information for controlling the execution of the command are received from the program transmission device and the data storage The reception is performed by separating and extracting desired data from the transmitted data, a temporal information acquisition unit for acquiring current temporal information, and the temporal Time information comparison / determination means for comparing the information with the time information for control and determining whether or not the predetermined operation can be performed; A presentation control unit that executes a command corresponding to the control time information that is a target of the determination based on a determination result of the above, a link instruction reception unit that receives a presentation instruction of other content by a user operation, Link execution means for presenting content in accordance with the presentation designation accepted by the link instruction acceptance means.
[0243]
With the above-described configuration, a data presentation control device that can control whether or not to execute a command sequence describing an operation according to time is realized.
Further, the command may be a command for performing control related to presentation of multimedia data.
With the above-described configuration, a data presentation control device that can control operation execution related to presentation of multimedia data is realized according to time.
[0244]
Further, the data presentation control device according to the present invention controls a plurality of multimedia data constituting a plurality of contents which are constituent elements of a program and the presentation of the multimedia data corresponding to each multimedia data. A data presentation control device for receiving control time information which is temporal information and controlling presentation of multimedia data, comprising: a data storage means; the control time information and the multimedia data; Received from the transmitting device and stored in the data storage means, the receiving is performed by separating and extracting desired data from the transmitted data, and the time-lapse information for acquiring the current temporal information An information acquisition means, comparing the time-dependent information and the control time information to control the presentation of the multimedia data. Time information comparison / determination means for determining whether or not the information is acceptable, and presentation control for controlling presentation of multimedia data corresponding to the control time information that is the object of the determination based on a determination result of the time information comparison / determination means Means, a link instruction accepting means for accepting an instruction to present other content by a user's operation, and a link executing means for presenting the content in accordance with the presentation designation accepted by the link instruction accepting means.
[0245]
With the above configuration, a data presentation control apparatus that controls presentation by time in units of multimedia data is realized.
In addition, the data presentation control device according to the present invention includes a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program, and temporal information for controlling the presentation of the contents corresponding to each content. A data presentation control device for receiving a certain control time information and controlling the presentation of content, wherein the data storage means, the multimedia data and the control time information are received from the program transmission device, and The data is stored in a data storage means, and the reception is performed by separating and extracting desired data from the transmitted data, a temporal information acquisition means for acquiring current temporal information, and utilization Link instruction receiving means for receiving an instruction to present other content by the user's operation, and the presentation received by the link instruction receiving means Link execution means for presenting content in accordance with a predetermined time, and time information for determining whether or not to control the content presentation by comparing the time-dependent information with the control time information when the content is presented by the link execution means Comparing and determining means; and presentation control means for controlling the presentation of content corresponding to the control time information that is the object of the determination based on the determination result of the time information comparing and determining means.
[0246]
With the above configuration, a data presentation control device that controls presentation by time in units of contents is realized.
Further, the data presentation control device according to the present invention controls a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program, a command for controlling the presentation of the multimedia data, and execution of the command. A data presentation control device for controlling presentation of multimedia data by receiving control time information that is temporal information of the data, the data storage means, the multimedia data, the command, and the control time information; Is received from the program transmission device and stored in the data storage means, and the reception is performed by separating and extracting desired data from the transmitted data, and the current time-lapse information. Time information acquisition means for acquiring, and time information for determining whether or not the instruction can be executed by comparing the time information and the control time information; A comparison determination unit; a presentation control unit that executes a command corresponding to the control time information that is the target of the determination based on a determination result of the time information comparison determination unit; and A link instruction receiving unit that receives a presentation instruction, and a link execution unit that presents content according to a presentation designation received by the link instruction receiving unit.
[0247]
With the above configuration, a data presentation control device that automatically controls presentation at a predetermined time is realized.
Further, the control time information is further associated with the content, and the presentation control means controls the presentation when the content corresponding to the control time information that is the subject of the judgment is presented. It can also be done.
[0248]
With the above configuration, a data presentation control device that performs a specific operation such as presentation of multimedia data only when specific content is currently displayed is realized.
The control time information is a control date and time indicating a date and time, the time-dependent information is a current date and time, and the time information comparison and determination means determines that control is possible when the control date and time indicates before the current date and time. Then you can do it.
[0249]
With the above configuration, a data presentation control device is realized that performs an operation such as presenting multimedia data when a specific date and time has elapsed, and does not execute the operation when the specific date and time has not elapsed.
Further, the control time information is an elapsed time for control indicating an elapsed time from the display of the content, the temporal information is a current elapsed time from the display of the content, and the time information comparison / determination means includes: It can also be determined that control is possible when the current elapsed time exceeds the control elapsed time.
[0250]
With the above configuration, a data presentation control device that presents multimedia data when a certain time has elapsed since the presentation of content is realized.
Further, the data presentation control device according to the present invention controls a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program, a command for controlling the presentation of the multimedia data, and execution of the command. Data presentation control device for controlling presentation of multimedia data by receiving control time information associated with a group of multimedia data, the data storage means, and the multimedia Receiving the data, the command, the control time information, and the target identification information for identifying the group of multimedia data from the transmission device of the program, and storing the data in the data storage means; Receiving means by separating and extracting the desired data from the transmitted data, and acquiring current information over time A determination result of the time information comparison determination means, a time information comparison determination means for determining whether or not the instruction can be executed by comparing the time information and the control time information, and a determination result of the time information comparison determination means A presentation control means for executing a command corresponding to the control time information that is the subject of the determination if the group of multimedia data is presented with reference to the target identification information when the target identification information is present; A link instruction receiving unit that receives an instruction to present another content by a user operation, and a link execution unit that presents the content in accordance with the presentation designation received by the link instruction receiving unit.
[0251]
With the above configuration, a data presentation control apparatus that executes a specific operation only when specific multimedia data is currently displayed is realized.
Further, the data presentation control device according to the present invention controls a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program, a command for controlling the presentation of the multimedia data, and execution of the command. Data presentation control device for receiving control time information that is time information of the user, receiving a user operation instruction and controlling presentation of multimedia data, comprising: a data storage means; the multimedia data; and The command and the control time information are received from the program transmission apparatus and stored in the data storage means, and the reception is performed by separating and extracting desired data from the transmitted data. A temporal information acquisition unit that acquires current temporal information, an operation instruction reception unit that receives an operation instruction by a user's operation, Time information comparison / determination means for comparing the time-dependent information and the control time information to determine whether or not the instruction can be executed when the operation instruction accepting means accepts the operation instruction; Presentation control means for executing a command corresponding to the control time information that is the subject of the judgment based on the judgment result of the means.
[0252]
With the above-described configuration, a data presentation control device is realized that, when operated by a user, determines a time factor and executes a specific operation designated to be performed at that time.
The data transmission device according to the present invention is a data transmission device for transmitting a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program, and presenting a plurality of multimedia data and multimedia data Transmission data storage means for storing control time information, which is time information for controlling the transmission, and transmission means for transmitting the multimedia data and the control time information.
[0253]
With the above configuration, when providing a program capable of interactive operation with a one-way transmission system, information specifying the presentation timing of multimedia data that is an element constituting the program is transmitted to the data presentation control device. A data transmission device capable of performing the above is realized.
In addition, the transmission means may repeatedly transmit the control time information.
[0254]
With the above configuration, even when the user tries to display any content by an operation such as specifying a link destination at any time, the data presentation control device quickly obtains time information used for control of the corresponding content. A data transmission apparatus that transmits data so as to be acquired is realized.
The transmission data storage means may further store link information that is information for associating the plurality of contents with each other, and the transmission means may further transmit the link information.
[0255]
With the above-described configuration, a data transmission apparatus for enabling interactive operation by a user for content presentation is realized.
The data transmission device may further include a time measuring unit that measures the current date and time, and the transmission unit may further transmit time-dependent information indicating the current date and time.
[0256]
With the above-described configuration, a data transmission apparatus that transmits data so that the presentation timing of multimedia data can be controlled by accurate time information for the data presentation control apparatus is realized.
The transmission data storage means stores a time difference value that is a difference between a reference time between a current date and time and a control date and time that is the control time information, and the transmission means further transmits the time difference value. You can also.
[0257]
With the above configuration, even when there is a time difference between the control date and time for controlling the presentation of multimedia data and the current date and time, the multimedia data can be presented at an accurate timing. A data transmission apparatus for transmitting data is realized.
The data transmitting apparatus according to the present invention is a data transmitting apparatus that transmits a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program, and performs a predetermined operation with the plurality of multimedia data. Transmission data storage means for storing a command for controlling, control time information which is time information for controlling execution of the command, and link information which is information for associating a plurality of contents with each other, and the multimedia Transmission means for transmitting data, the link information, the command, and the control time information is provided.
[0258]
With the above configuration, a data transmission device that transmits data to execute a specific operation according to time is realized.
Further, the command may be a command for performing control related to presentation of multimedia data.
With the above configuration, a data transmission device that transmits data for enabling control of operation execution related to presentation of multimedia data is realized according to time.
[0259]
A data transmission apparatus according to the present invention is a data transmission apparatus that transmits a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program, the plurality of multimedia data, and each multimedia data Data transmission means for storing control time information that is time information for controlling presentation of the multimedia data and link information that is information for correlating a plurality of contents, and the multimedia Transmitting means for transmitting data, the link information, and the control time information is provided.
[0260]
With the above-described configuration, a data transmission device for causing the data presentation control device to control presentation by time in units of multimedia data is realized.
The data transmission device according to the present invention is a data transmission device that transmits a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program, and corresponds to the plurality of multimedia data and each content. Transmission data storage means for storing time information for control, which is time information for controlling the presentation of the content, and link information, which is information for associating a plurality of contents with each other, the multimedia data, and the link Transmitting means for transmitting information and the control time information is provided.
[0261]
With the above-described configuration, a data transmission device for causing the data presentation control device to control presentation according to time in units of contents is realized.
The data transmission device according to the present invention is a data transmission device for transmitting a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program, and presenting a plurality of multimedia data and multimedia data A transmission data storage means for storing a command for controlling the time, control time information which is time information for automatically starting execution of the command, and link information which is information for associating a plurality of contents with each other And transmitting means for transmitting the multimedia data, the link information, the command, and the control time information.
[0262]
With the above-described configuration, a data transmission device for causing the data presentation control device to automatically control presentation at a predetermined time is realized.
The control time information may be a control date and time indicating a date and time.
With the above configuration, a data transmission device that transmits a program that determines whether or not to execute an instruction for performing operations such as presentation of multimedia data according to the date and time is realized.
[0263]
The control time information may be a control elapsed time indicating an elapsed time from display of a predetermined content.
With the above-described configuration, a data transmission device that transmits data that can present multimedia data when a predetermined time has elapsed after the data presentation control device has presented predetermined content is realized.
[0264]
The data transmission device according to the present invention is a data transmission device for transmitting a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program, and presenting a plurality of multimedia data and multimedia data Is a time information for automatically starting execution of the command, control time information associated with a group of multimedia data, and information associating a plurality of contents with each other Transmission data storage means for storing link information; and transmission means for transmitting the multimedia data, the link information, the command, and the control time information.
[0265]
With the above-described configuration, a data transmission device for executing a specific operation only when specific multimedia data is currently displayed on the data presentation control device is realized.
The data transmission device according to the present invention is a data transmission device for transmitting a plurality of multimedia data constituting a plurality of contents that are constituent elements of a program, and presenting a plurality of multimedia data and multimedia data A control information that is time information serving as a criterion for determining whether or not execution is to be suppressed when a request for execution of the command is made in a receiving device that receives transmission data, and a plurality of contents Transmission data storage means for storing link information, which is information for associating each other, and transmission means for transmitting the multimedia data, the link information, the command, and the control time information. .
[0266]
With the above-described configuration, a data transmission device that transmits data for causing a data presentation control device to execute a specific operation according to the time when an operation is performed by a user is realized.
Further, the data presentation control information editing apparatus according to the present invention is a data presentation control that edits information related to a date and time for expressing a correlation between a plurality of contents on a display screen and controlling the relation between contents according to a user operation. An information editing apparatus, comprising: a plurality of sets of link information indicating a path of change in presentation from the first content to the second content and valid period information relating to the valid period of the link information; Data storage means for storing content control information for controlling execution of processing, date / time designation accepting means for accepting designation of date / time by a user's operation, designated by the user with reference to the validity period information By focusing on link information that is valid at the date and time, the content phase that expresses the correlation of the content at the date and time on the display screen Characterized in that it comprises a relation display means.
[0267]
With the above configuration, the data presentation control information editing device allows the user of the data presentation control information editing device to grasp the connection between the contents at a glance, and further identifies the connection between the contents effective at the date and time specified by the user. A device is realized.
Further, the data presentation control information editing apparatus further uses a content designation accepting unit that accepts designation of content by a user's operation and link information indicating a route of change of presentation to the content designated by the user's operation. Link information updating means for updating the validity period information corresponding to the link information so as to be invalid at the date and time designated by the user.
[0268]
With the above configuration, the content specified by the user is presented after the date and time by cutting the connection from the other content to the content specified by the user at the date and time specified by the user of the data presentation control information editing device. A data presentation control information editing apparatus that generates control information that is not performed is realized.
The link information and the validity period information may be transmitted from a digital broadcast transmission device to a data presentation control device that presents content.
[0269]
With the above-described configuration, a data presentation control information editing device that generates control information for causing a data presentation control device, which is a digital broadcast receiving device, to perform a specific operation at a specific date and time is realized.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of a data presentation control device according to a first embodiment of the present invention.
FIG. 2 is a diagram showing an example of a screen displayed by the data presentation control apparatus 1000 according to the first embodiment of the present invention.
FIG. 3 is a diagram schematically showing data transmitted from the data transmitting apparatus side in a simplified manner.
FIG. 4 is a diagram schematically showing a state of multiplexing data transmitted from the data transmitting apparatus side.
5 is a diagram showing a data structure of navigation information 2160. FIG.
6 is a diagram showing a data structure of navigation information 2260. FIG.
7 is a diagram showing a data structure of navigation information 2360. FIG.
FIG. 8 is a flowchart showing content switching operation and handler activation operation;
FIG. 9 is a diagram showing transition of a display screen.
FIG. 10A is a diagram showing a data structure of TDT, and FIG. 10B is a diagram showing a data structure of TOT.
FIG. 11 is a diagram showing a data structure of navigation information 2170.
FIG. 12 is a diagram showing a data structure of navigation information 2270;
13 is a diagram showing a data structure of navigation information 2370. FIG.
FIG. 14 is a flowchart illustrating an operation of handler activation processing according to the second embodiment.
FIG. 15 is a diagram showing transition of a display screen in the second embodiment.
FIG. 16 is a diagram showing a data structure of navigation information 2180.
FIG. 17 is a flowchart showing content switching operation and handler activation operation in the third embodiment.
FIG. 18 is a diagram showing a data structure of navigation information 6160.
FIG. 19 is a flowchart showing content switching operation and handler activation operation in the fourth embodiment.
FIG. 20 is a diagram showing transition of a display screen in the fourth embodiment.
FIG. 21 is a diagram showing a data structure of navigation information 7160.
FIG. 22 is a flowchart showing content switching operation and handler activation operation in the fifth embodiment;
FIG. 23 is a diagram showing an example of a screen displayed by the data presentation control apparatus 1000 according to the sixth embodiment of the present invention.
FIG. 24 is a diagram schematically showing data transmitted from the data transmitting apparatus side in a simplified manner.
FIG. 25 is a diagram showing a data structure of navigation information 8160.
FIG. 26 is a flowchart showing content switching operation and handler activation operation;
FIG. 27 (a) is a diagram showing the transition of the display screen when the user answers the quiz within time, and FIG. 27 (b) is a diagram showing the time taken by the user for the quiz. It is a figure which shows the transition of a display screen when it cannot answer within.
FIG. 28 is a block diagram illustrating a configuration of a data presentation control information editing device according to a seventh embodiment of the present invention.
FIG. 29 is a flowchart showing the operation of the data presentation control information editing apparatus 10000.
30 is a diagram showing a display screen displayed by the data presentation control information editing apparatus 10000. FIG.
FIG. 31 is a block diagram showing a configuration of a data presentation control information editing apparatus according to an eighth embodiment of the present invention.
32 is a flowchart showing the operation of the data presentation control information editing apparatus 10500 in Embodiment 8. FIG.
FIG. 33 is a block diagram of a digital broadcasting system in the related art.
FIG. 34 is a diagram illustrating an example of a screen displayed by a data receiving device in a digital broadcasting system according to related technology.
FIG. 35 is a diagram schematically showing simplified data transmitted from the data transmitting apparatus side in the related art.
FIG. 36 is a diagram schematically showing the state of data transmitted from the data transmitting apparatus side in the related art.
FIG. 37 is a diagram showing a state of multiplexing data transmitted from the data transmitting apparatus side in the related art.
FIG. 38 is a diagram showing a data structure of navigation information 216 in the related art.
[Explanation of symbols]
1000 Data presentation control device
1010 Receiver
1020 TS decoder section
1021 Filter condition storage unit
1030 AV decoder section
1031 Clock part
1040 Received data storage unit
1041 Stream correspondence information storage unit
1042 Navigation information storage unit
1043 System information storage unit
1044 Time information storage unit
1050 Reception control unit
1051 Byte code interpreter
1060 Playback unit
1070 display unit
1080 Audio output unit
1100 Signal receiver
2150 Image data
2160 Navigation information
2170 Navigation information
2180 Navigation information
2200 content
2250 image data
2260 Navigation information
2270 Navigation information
2300 content
2350 image data
2360 Navigation information
2370 Navigation information
2400 content
10000 data presentation control information editing device
10010 Date and time input reception
10020 Data storage unit
10030 Content correlation determination unit
10040 Content correlation display section
10500 Data presentation control information editing apparatus
10510 Non-link destination content selection reception unit
10520 Data update unit

Claims (16)

A plurality of multimedia data constituting a plurality of contents which are constituent elements of a program, and information for specifying an initial state regarding presentation of multimedia data which is presentation control information corresponding to each of the contents and constituting the contents; Presentation of multimedia data by receiving presentation control information including time information for control that is time information that triggers a change in the state related to the content, and link information that is information that associates a plurality of the contents with each other A data presentation control device for controlling
Data storage means;
The multimedia data and the presentation control information are received from the program transmission device and stored in the data storage means, and the reception is performed by separating and extracting desired data from the transmitted data. Receiving means;
A temporal information acquisition means for acquiring current temporal information;
Controls the presentation of each content, and controls the presentation of multimedia data to the initial state according to the presentation control information corresponding to the content received by the receiving means for the content that needs to be presented When the time indicated in the control time information comes by comparing the control time information in the presentation control information with the time-dependent information during the presentation of the content, the state related to the content is changed. Presentation control means to perform and
Link instruction accepting means for accepting an instruction to present other content by the user's operation,
The data presentation control device, wherein the presentation control means performs control to switch and present each content according to a presentation designation received by the link instruction receiving means . The data presentation control apparatus according to claim 1, wherein the control time information is repeatedly transmitted from the program transmission apparatus. The receiving means further separates and extracts the temporal information from the transmitted data;
The data presentation control device according to claim 1, wherein the temporal information acquisition unit acquires the temporal information from the reception unit. The data storage means stores a time difference value that is a difference in reference time between the time-dependent information and the control time information,
The data presentation control device according to claim 1, wherein the presentation control unit compares the time information for control with the time-dependent information by correcting the time difference with reference to the time difference value. The receiving means further extracts the time difference value and the time-dependent information from transmitted data, stores the time difference value in the data storage means,
The data presentation control device according to claim 4 , wherein the temporal information acquisition unit acquires the temporal information from the reception unit. A plurality of multimedia data constituting a plurality of contents which are constituent elements of a program, and information for specifying an initial state regarding presentation of multimedia data which is presentation control information corresponding to each of the contents and constituting the contents; Presentation control information including a command for designating a change of the state related to the content, control time information that is time information that triggers the execution of the command, and link information that is information for associating a plurality of the content with each other A data presentation control device that receives and controls the presentation of multimedia data,
Data storage means;
The multimedia data and the presentation control information are received from the program transmission device and stored in the data storage means, and the reception is performed by separating and extracting desired data from the transmitted data. Receiving means;
A temporal information acquisition means for acquiring current temporal information;
Controls the presentation of each content, and controls the presentation of multimedia data to the initial state according to the presentation control information corresponding to the content received by the receiving means for the content that needs to be presented When the time indicated in the control time information comes by comparing the control time information in the presentation control information with the time-dependent information during the presentation of the content, the control time information is handled. Presentation control means for executing instructions to perform;
Link instruction accepting means for accepting an instruction to present other content by the user's operation,
The data presentation control device, wherein the presentation control unit performs control to switch and present each content according to a presentation designation received by the link instruction receiving unit. The data presentation control device according to claim 6, wherein the command is a command for performing control related to a change in a presentation state of multimedia data. To specify a plurality of multimedia data constituting a plurality of contents which are constituent elements of a program and an initial state and a change state relating to presentation of multimedia data which is presentation control information corresponding to each content and which constitutes the contents And receiving the presentation control information including the control information and the time information for control that is the time information that triggers the change to the change state, and the link information that is the information associating the plurality of contents with each other. A data presentation control device for controlling presentation of data,
Data storage means;
The presentation control information and the multimedia data are received from the program transmission device and stored in the data storage means, and the reception is performed by separating and extracting desired data from the transmitted data. Receiving means;
A temporal information acquisition means for acquiring current temporal information;
Control the presentation of each content, and control the presentation of multimedia data to the initial state according to the presentation control information corresponding to the content received by the receiving means for the content that needs to be presented When the time indicated in the control time information arrives by comparing the control time information in the presentation control information with the time-dependent information during the presentation of the content, Presentation control means for controlling presentation of media data;
Link instruction accepting means for accepting an instruction to present other content by the user's operation,
The data presentation control device, wherein the presentation control unit performs control to switch and present each content according to a presentation designation received by the link instruction receiving unit. The control time information is a control date and time indicating a date and time, and the time-dependent information is a current date and time,
7. The data presentation according to claim 6 , wherein when the control date / time indicates a time before the current date / time, the presentation control unit executes the command on the assumption that the time indicated in the control time information has arrived. Control device. The control time information is an elapsed time for control indicating an elapsed time from the display of the content, and the time-dependent information is a current elapsed time from the display of the content,
6. The presentation control means, the current elapsed time and executes the instructions as if the time has arrived as shown for the control time information to indicate more than elapsed time control The data presentation control device described. A plurality of multimedia data constituting a plurality of contents which are constituent elements of a program, and information for specifying an initial state regarding presentation of multimedia data which is presentation control information corresponding to each of the contents and constituting the contents; A plurality of presentation control information including a command designating a change of the state relating to the content, control time information that is time information that triggers the execution of the command, and target identification information for identifying a group of multimedia data ; A data presentation control device that controls the presentation of multimedia data by receiving link information that is information for correlating the contents of each other ,
Data storage means;
The multimedia data and the presentation control information are received from the program transmission device and stored in the data storage means, and the reception is performed by separating and extracting desired data from the transmitted data. Receiving means;
A temporal information acquisition means for acquiring current temporal information;
Control the presentation of each content, and control the presentation of multimedia data to the initial state according to the presentation control information corresponding to the content received by the receiving means for the content that needs to be presented When the time indicated in the control time information has arrived by comparing the control time information in the presentation control information with the time-dependent information during the presentation of the content, A presentation control means for executing a command corresponding to the control time information when a group of multimedia data specified by the target identification information is presented;
Link instruction accepting means for accepting an instruction to present other content by the user's operation,
The data presentation control device, wherein the presentation control unit performs control to switch and present each content according to a presentation designation received by the link instruction receiving unit. A plurality of multimedia data constituting a plurality of contents which are constituent elements of a program, and information for specifying an initial state regarding presentation of multimedia data which is presentation control information corresponding to each of the contents and constituting the contents; Presentation control information including a command for designating a change of the state related to the content, control time information that is time information that triggers the execution of the command, and link information that is information for associating a plurality of the content with each other A data presentation control device that receives and receives user operation instructions and controls presentation of multimedia data,
Data storage means;
The multimedia data and the presentation control information are received from the program transmission device and stored in the data storage means, and the reception is performed by separating and extracting desired data from the transmitted data. Receiving means;
A temporal information acquisition means for acquiring current temporal information;
An operation instruction receiving means for receiving an operation instruction by a user operation;
Control the presentation of each content, and control the presentation of multimedia data to the initial state according to the presentation control information corresponding to the content received by the receiving means for the content that needs to be presented When the operation instruction is received by the operation instruction receiving means during the presentation of the content, the control time information is indicated in the control time information by comparing the control time information in the presentation control information with the time-lapse information. Presentation control means for executing a command corresponding to the control time information when the time has been reached,
Link instruction accepting means for accepting an instruction to present other content by the user's operation,
The data presentation control device, wherein the presentation control unit performs control to switch and present each content according to a presentation designation received by the link instruction receiving unit. A plurality of multimedia data constituting a plurality of contents which are constituent elements of a program, and information for specifying an initial state relating to presentation of multimedia data which is presentation control information corresponding to each of the contents and constituting the contents; An apparatus for receiving presentation control information including control time information that is time information that triggers a change in the state related to the content, and link information that is information that associates a plurality of the contents with each other. A data presentation control method for performing data presentation control processing related to presentation of multimedia data,
The data presentation control method includes:
A temporal information acquisition step for acquiring current temporal information;
A link instruction accepting step for accepting an instruction to present other content by a user operation;
In accordance with the content presentation instruction, control is performed to switch and present each content, and for the content that needs to be presented, the multimedia data is presented to be in the initial state according to the received presentation control information corresponding to the content. When the time indicated in the control time information comes by comparing the control time information in the presentation control information with the time-dependent information during the presentation of the content, A presentation control step for making a change
The data presentation control method characterized by the above-mentioned. A plurality of multimedia data constituting a plurality of contents which are constituent elements of a program, and information for specifying an initial state regarding presentation of multimedia data which is presentation control information corresponding to each of the contents and constituting the contents; Presentation control information including a command for designating a change of the state related to the content, control time information that is time information that triggers the execution of the command, and link information that is information for associating a plurality of the content with each other A data presentation control method for causing a receiving device to perform data presentation control processing related to presentation of multimedia data,
The data presentation control method includes:
A temporal information acquisition step for acquiring current temporal information;
A link instruction accepting step for accepting an instruction to present other content by a user operation;
In accordance with the content presentation instruction, the content is controlled to be switched and presented. For the content that needs to be presented, the multimedia data is presented to be in the initial state according to the received presentation control information corresponding to the content. If the time indicated in the control time information comes by comparing the time information for control in the presentation control information with the time-dependent information during the presentation of the content, the control time information A presentation control step for executing a command corresponding to
The data presentation control method characterized by the above-mentioned. A plurality of multimedia data constituting a plurality of contents which are constituent elements of a program, and information for specifying an initial state regarding presentation of multimedia data which is presentation control information corresponding to each of the contents and constituting the contents; Multimedia data is transmitted to a device that receives presentation control information including control time information that is time information that triggers a change in the state of the content, and link information that is information that correlates a plurality of the contents to each other. A recording medium recording a control program for performing data presentation control processing related to presentation,
The data presentation control process includes:
A temporal information acquisition step for acquiring current temporal information;
A link instruction accepting step for accepting an instruction to present other content by a user operation;
In accordance with the content presentation instruction, the content is controlled to be switched and presented. For the content that needs to be presented, the multimedia data is presented to be in the initial state according to the received presentation control information corresponding to the content. When the time indicated in the control time information comes by comparing the control time information in the presentation control information with the time-dependent information during the presentation of the content, A presentation control step for making a change
A recording medium characterized by the above. Multiple multimedia devices that make up multiple content components of a program Information for specifying the initial state regarding presentation of multimedia data constituting the content, presentation control information corresponding to each content, a command for specifying a change of the state regarding the content, and an execution timing of the command Data presentation control processing related to presentation of multimedia data is performed on a device that receives presentation control information including control time information that is time information to be obtained and link information that is information that correlates a plurality of the contents to each other A recording medium on which a control program for recording is recorded,
The data presentation control process includes:
A temporal information acquisition step for acquiring current temporal information;
A link instruction accepting step for accepting an instruction to present other content by a user operation;
In accordance with the content presentation instruction, control is performed to switch and present each content, and for the content that needs to be presented, the multimedia data is presented to be in the initial state according to the received presentation control information corresponding to the content. If the time indicated in the control time information comes by comparing the control time information in the presentation control information with the time-dependent information during the presentation of the content, the control time information A presentation control step for executing a command corresponding to
A recording medium characterized by the above.

Images