JP2008306316A - Multi-screen display of data broadcast - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terrestrial digital broadcast receiver capable of displaying the contents of data broadcast before and after update simultaneously, when the contents are updated. <P>SOLUTION: The terrestrial digital broadcast receiver includes a digital broadcast reception portion, a module acquisition portion for acquiring a module of data broadcast from the digital broadcast reception portion, a module storage portion for accumulating the acquired module, a module update detection portion for detecting module update by using a DII (Download Information Indicator), and a display portion. The display portion can simultaneously display information based on both a module which can be acquired at the present and a past module which is accumulated in the module storage portion and cannot be acquired at the present, using the detection of update as a trigger. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a terrestrial digital broadcast receiver that receives a data broadcast and displays content.

  FIG. 12 shows an example of functional blocks of a general terrestrial digital broadcast receiver. A conventional terrestrial digital broadcast receiver includes an “antenna unit” (1201) that receives broadcast waves from a broadcast station, and a “tuner unit” (1202) that selects an arbitrary broadcast wave from a plurality of broadcast waves. "Demux part" (1203) for demultiplexing multiplexed data in broadcast waves into data such as video / audio / data broadcast, and video / audio data demultiplexed by Demux part A “decoder unit” (1204) that outputs as a video / audio signal, a “module acquisition unit” (1205) that acquires a module from data for data broadcasting demultiplexed by the Demux unit, and “analyzes the module” Module analysis unit "(1206)," module storage unit "(1207) for storing modules, and BML (Broadcast Markup Language) ) “Display unit” (1208) that presents the content generated by combining the modules specified by the browser and the video signal output by the decoder unit as a video on a liquid crystal display or the like, and output by the decoder unit It consists of a “speaker unit” (1209) for reproducing an audio signal as audio. Here, BML is an XML (extensible Markup Language) application language defined by ARIB STD-B24, and is used for describing multimedia expressions in data broadcasting contents.

  Unlike analog broadcasting, digital broadcasting transmits data for data broadcasting in addition to video / audio. Data for data broadcasting is stored in a module storage unit provided in the digital terrestrial broadcasting receiver, and a BML browser that displays data broadcasting can analyze the data and present the data broadcasting to the user. As shown in FIG. 13, the conventional data broadcasting is generally listed so that each item can be selected.

  Data for data broadcasting is composed of units called modules, and modules can be identified by analyzing DII. DII is an abbreviation for Download Information Indicator, which is a type of data attached to a data carousel and manages module information existing in a component. Specifically, a component tag, a module ID, a module name, a module version, etc. are used for module identification. Generally, it is generally possible to uniquely identify a module existing on the module storage unit by storing the module identification information together with the module.

  In addition, data broadcasting data is often updated with time, and there are cases where all of the data broadcasting data being transmitted is updated and part of the data broadcasting data is updated. When all the data for data broadcasting is updated, for example, as shown in FIG. 14A, it is a program-linked data broadcasting, and is often updated at the same time as the program ends. In addition, when part of the data for data broadcasting is updated, for example, as shown in FIG. 14B, it is data broadcasting that is not linked to a program and is often updated independently. Here, when updating a part of the data for data broadcasting, since the module can be uniquely identified as described above, only the module is updated.

  In either case, the broadcast receiver needs to display the updated data when the data broadcasting data sent from the broadcasting station is updated.

  By the way, a fixed receiver typified by a fixed television has a sufficiently large screen, and even if a data broadcasting screen is divided and a plurality of screens are displayed, it can be displayed without impairing visibility. In mobile receivers typified by mobile phones having a terrestrial digital broadcast reception function, in recent years, the screen has been enlarged and the resolution has been improved, and even if the data broadcast screen is divided, the visibility is not impaired. Has been invented.

  In addition, as a related technique, as disclosed in Patent Document 1, the user can start viewing desired content at an early stage by confirming in advance by presenting the content before the user performs a switching operation. Digital broadcast receivers that can be used have been proposed.

Furthermore, as in Patent Document 2, a digital broadcast receiver has been proposed that can present a series of related news including news that has already been deleted on data broadcasting to the user.
JP 2007-36335 A JP 2007-96715 A

  Here, consider a scene where a user is watching a data broadcast. When viewing a data broadcast, the user mainly needs to “read” work, and it often takes time to obtain information as compared to the work of “viewing” video and “listening” of audio. For example, when reading news transmitted by data broadcasting, there are speed of reading by the person himself, time to scroll if it does not fit on one screen, time to follow links, etc. Take it.

  If the broadcast station updates the content of the data broadcast while the user is reading the news, it is possible that the news that was being read is erased and other new news is displayed. In addition, in the case of program-linked data broadcasting, the contents of the program are broadcast, applications for sweepstakes that the program is running, etc., but while checking the contents of the program, If the data for data broadcasting is updated during the application for the sweepstakes, the work will be interrupted and you will not be able to read the text to the end or return to the original operation. It is possible that will not be able to.

  If the invention of Patent Document 2 is used, it is possible to view news that has already been deleted on data broadcasting. However, since it requires prior registration, it is unexpectedly performed by updating the module of the news that has been read. It is not effective when it becomes impossible to read.

  Accordingly, the present invention proposes a digital terrestrial broadcast receiver characterized in that, when the data broadcasting module currently being viewed is updated, the screen before the update is displayed together with the screen after the update.

  Specifically, the first invention uses a digital broadcast receiver, a module acquisition unit that acquires a data broadcast module from the digital broadcast receiver, a module storage unit that stores the acquired module, and DII. Triggered by both the module update detection unit that detects module updates, the module that can be acquired at the time of the detection of the update, and the past module that is stored in the module storage unit and cannot be acquired now A terrestrial digital broadcast receiver comprising a display unit capable of simultaneously displaying information based thereon.

  A second aspect of the invention is the terrestrial digital broadcast receiver according to the first aspect of the invention, wherein the display unit includes a display unit immediately before displaying a latest module immediately before detection of an update as a past module.

  According to a third aspect of the present invention, the ground according to the first aspect or the second aspect of the present invention further includes a display control unit that designates the number of times of update detection as a past module and identifies the past module of the module storage unit with respect to the display unit. It is a digital broadcast receiver.

  The fourth invention is a digital broadcast receiving unit, a module acquiring unit for acquiring a data broadcast module from the digital broadcast receiving unit, a module storing unit for storing the acquired module, and detecting module updates using DII. The information is based on both the module update detection unit, the module that can be acquired now, triggered by the detection of the update, and the past module that is stored in the module storage unit and cannot be acquired now. A terrestrial digital broadcast receiver including a tab display unit which can be switched and displayed.

  A fifth aspect of the invention is the terrestrial digital broadcast receiver according to the fourth aspect of the invention, wherein the tab display unit has a tab-previous display means for displaying the latest module immediately before detection of an update as a past module.

  A sixth invention is the fourth invention or the fifth invention, further comprising a tab display control unit that designates the number of times of update detection as the past module and specifies the past module of the module storage unit with respect to the tab display unit. Terrestrial digital broadcast receiver.

  The seventh invention is a digital broadcast reception step, a module acquisition step for acquiring a data broadcast module from the digital broadcast receiver, a module storage step for storing the acquired module, and a module update detected using DII. Information based on both the module update detection step, the module that can be acquired now, and the past module that is stored in the module storage unit and cannot be acquired at the same time, triggered by the detection of the update. And a display step for enabling display.

  The eighth invention is the operation method of the terrestrial digital broadcast receiver according to the seventh invention, wherein the display step has a immediately preceding display substep for displaying the latest module immediately before the update detection as a past module.

  The ninth invention is the operating method of the terrestrial digital broadcast receiver according to the seventh invention or the eighth invention, further comprising a display control step of specifying a past module by designating the number of times of update detection as the past module. .

  A tenth aspect of the invention is a digital broadcast receiving step, a module acquisition step of acquiring a data broadcast module from the digital broadcast receiver, a module storage step of storing the acquired module, and module update detection using DII The module update detection step, and the detection based on the update detection as a trigger, tabulates information based on both the currently acquirable module and the past module that is accumulated in the module accumulator and cannot be obtained now. The terrestrial digital broadcast receiver has a tab display step that enables switching display at.

  The eleventh aspect of the invention is the operating method of the digital terrestrial broadcasting receiver according to the tenth aspect, wherein the tab display step includes a tab immediately before display sub-step for displaying the latest module immediately before the update detection as a past module.

  The twelfth invention is the operation of the terrestrial digital broadcast receiver according to the tenth invention or the eleventh invention, further comprising a tab display control step for specifying the past module by designating the number of update detections as the past module. Is the method.

  In a thirteenth aspect of the invention, the module acquisition unit communicates a link destination module placed on a server such as a broadcasting station linked from the data broadcasting module currently received by the digital broadcasting receiving unit through communication. The module accumulating unit has a function of automatically obtaining, the module accumulating unit also accumulates automatically acquired link destination modules, and the display unit or the tab display unit can also display the link destination modules accumulated as past modules. A terrestrial digital broadcast receiver according to any one of the first to sixth aspects of the invention.

  In a fourteenth aspect of the invention, the module storing step is performed by communicating a link destination module placed on a server such as a broadcasting station linked from the data broadcasting module currently received by the digital broadcasting receiver. The method further comprises a sub-step for automatically acquiring and storing, wherein the display step or the tab display step is any one of the seventh to twelfth inventions capable of displaying a link destination module stored as a past module. The operation method of the terrestrial digital broadcast receiver described in the above.

  According to the terrestrial digital broadcast receiver of the present invention, even when the user reads the content of the data broadcast such as news, the broadcast station updates the content of the data broadcast. The content can be read to the end without being erased. In addition, when a link is established in the data broadcast being read, the link destination information is also stored, so that the link can be followed. As a result, the user can obtain information he or she wants to know without worrying about the update timing of the data broadcast.

  In addition, in program-linked data broadcasting, if an application for a sweepstakes program is being broadcast, the user can operate even if the data broadcasting data is updated during the application for the sweepstakes. The operation is not disabled during the operation, and the desired operation can be continued.

The best mode for carrying out each invention will be described below. Note that the present invention is not limited to these embodiments, and can be implemented in various modes without departing from the scope of the present invention. In addition, the relationship between the following embodiment and a claim is as follows. The first embodiment will mainly describe claims 1, 4, 7, 10, 13, 14 and the like. The second embodiment will mainly describe claims 2, 5, 8, 11 and the like. The third embodiment will mainly describe claims 3, 6, 9, 12 and the like.
<< Embodiment 1 >>

  <Embodiment 1: Overview> This embodiment describes a terrestrial digital broadcast receiver characterized in that when a module currently being viewed by a user is updated, a screen before the update is displayed together with the screen after the update. To do.

  FIG. 1 is a conceptual diagram of this embodiment. 1A to 1C show display screens of the terrestrial digital broadcast receiver. The upper part is a video display part, and the lower part is a BML display part of data broadcasting. FIG. 1A shows the BML display screen before the data broadcasting module is updated, and FIGS. 1B and 1C show the BML display screen after the data broadcasting module is updated. It is assumed that “News AAA” was broadcast by data broadcasting before the update of (a). After the update, a new news “News BBB” is broadcast. (B) shows a prior art. When a news module is updated, a new news “news BBB” is displayed. However, if the user is in the middle of reading “News AAA”, it may be impossible to read the sentence to the end. Therefore, as shown in (c), by switching tabs, the news “news AAA” before the update and the news “news BBB” after the update can be watched simultaneously. When the “★” tab in (c) is selected, “News BBB” is displayed. Note that (c) is an example of this embodiment, and details will be described below.

  <Embodiment 1: Configuration> FIG. 2 shows a functional block diagram of this embodiment. The terrestrial digital broadcast receiver of this embodiment includes an “antenna unit” (0201) that receives broadcast waves from a broadcast station, and a “tuner unit” (0202) that selects an arbitrary broadcast wave from a plurality of broadcast waves. "Demux part" (0203) for demultiplexing the data in the multiplexed broadcast wave into data such as video / audio / data broadcast, and video / audio data demultiplexed by the Demux part A “decoder unit” (0204) that outputs a video / audio signal, a “module acquisition unit” (0205) that acquires a module from data broadcast data demultiplexed by the Demux unit, and a module analysis “Module analysis unit” (0206), “Module storage unit” (0207) for storing modules, “Module update detection unit” (0208), and BML browser A “display unit” (0209) that presents a content generated by combining modules specified by the above and a video signal output from the decoder unit as a video on a liquid crystal display or the like, and an audio signal output from the decoder unit "Speaker part" (0210) for reproducing as a sound. Here, the “decoder unit” (0204) and the “speaker unit” (0210) are not essential components in the present embodiment and the entire specification.

  Each unit having a function for receiving a digital broadcast such as an “antenna unit” (0201), a “tuner unit” (0202), a “Demux unit” (0203) and the like is collectively referred to as a “digital broadcast receiving unit”. (The same applies throughout the specification.)

  The “module acquisition unit” (0205) has a function of acquiring a data broadcast module from the “digital broadcast reception unit”. In addition, it has a function to automatically acquire a link destination module placed on a server such as a broadcasting station linked from the data broadcasting module currently received by the “digital broadcasting receiver” by communication. May be. In this case, the terrestrial digital broadcast receiver has a communication antenna.

  In the present embodiment, the “module storage unit” (0207), “module update detection unit” (0208), and “display unit” (0209) having characteristic functions will be described in detail below.

  The “module storage unit” (0207) has a function of storing the acquired modules. It is desirable that the “module analysis unit” (0206) analyze the modules and store them in a uniquely recognizable state. As for the accumulation of modules, a new one may be always accumulated up to a certain number, or a module to be accumulated by a user's button operation may be selected. Moreover, the structure which accumulate | stores only the module made into the object of the update detection by the module update detection part mentioned later may be sufficient. Further, the “module storage unit” may have a function of storing the link destination module automatically acquired by the “module acquisition unit” (0205).

  The “module update detection unit” (0208) has a function of detecting module updates using DII. As described above, DII manages module information. This DII is updated whenever the module is updated. Therefore, it is possible to detect which module has been updated by analyzing DII.

  The update detection target of the “module update detection unit” may be the module that the user is currently viewing, or the module that is linked from the currently viewed module as well as the currently viewed module It is also possible to target up to. The module that the user is currently viewing may be the module that the terrestrial digital broadcast receiver is currently displaying. Alternatively, all modules that the user is expected to view may be subject to update detection.

  The “display unit” (0209) is triggered by the detection of the update, and information based on both the currently acquirable module and the past module that has been accumulated in the module accumulating unit and is now unacquirable. Has a function to enable simultaneous display. Further, it may have a function of enabling display of link destination modules stored as past modules.

  The “display unit” is triggered by the detection of the update, and information based on both the currently acquirable module and the past module that is accumulated in the module accumulating unit and cannot be acquired at present. It may be a “tab display portion” that can be switched and displayed by tabs.

  <Embodiment 1: Hardware Configuration> FIG. 11 is a schematic diagram showing an example of a configuration when each component of the terrestrial digital broadcast receiver is realized as hardware. The operation of each hardware component in the terrestrial digital broadcast receiver will be described with reference to FIG.

  A part or all of each part which is a component of the present embodiment is configured by hardware, software, or both hardware and software. For example, as an example for realizing these, when a computer is used, there are hardware constituted by a CPU, a bus, a memory, an interface, a peripheral device, and the like, and software that can be executed on the hardware. As software, the functions of each unit are realized by sequentially executing a program developed on the memory, and processing, storing, and outputting data on the memory and data input via the interface. More specifically, FIG. 11 is a diagram illustrating the configuration of a general computer. The computer mainly includes a CPU (1110), a RAM (1120), a ROM (1130), an input / output interface (I / O) ( 1140), a hard disk (HDD) (1150), and the like, which are connected to each other via a data communication path such as a system bus (1160) to transmit / receive information and process information. In addition, a tuner (1141), a Demux (1143), a decoder (1144), a display (1145), a speaker (1146), a keyboard (1147), a light receiver (1148), and the like are connected to the input / output interface (1140). ing. Further, an antenna (1142) is connected to the tuner (1141), and the tuner (1141), the antenna (1142), the Demux (1143), the decoder (1144), the display (1145), the speaker (1146) are cables and the like. It is possible to exchange electrical signals. The light receiver (1148) receives a signal from the remote controller (1149). A part or all of each part which is a component of the terrestrial digital broadcast receiver according to the present embodiment can be realized by the same configuration as that of FIG. (The same applies throughout the specification.)

  The RAM (1120) reads a program for performing various processes for execution by the CPU (1110) and simultaneously provides a work area for the program. A plurality of memory addresses are assigned to the RAM (1120) and the ROM (1130), respectively, and programs executed by the CPU (1110) exchange data with each other by specifying and accessing the memory addresses. It is possible to perform processing. (The same applies throughout the specification.)

  Actually, the terrestrial digital broadcast receiver according to the present embodiment performs the following processing. First, when the user activates the terrestrial digital broadcast receiver, various programs such as a module acquisition program, a module analysis program, a module storage program, a module update detection program, and a display program held in a storage device such as the HDD (1150) are stored in the RAM. (1120) is expanded in the work area. When the user inputs a data broadcast viewing start signal and a broadcast wave selection signal to the light receiver (1148) using the remote controller (1149) or the like, the CPU (1110) acquires and analyzes those signals. Then, an instruction to start receiving the broadcast wave is sent to the tuner (1141) together with the broadcast wave selection signal information, and an instruction to acquire data of the data broadcast is sent to the Demux (1143). Next, the CPU (1110) executes a module acquisition program developed in the RAM (1120), and acquires a module included in the data broadcast data acquired by the Demux (1141). The acquired module is temporarily stored in the data area of the RAM (1120). Next, the CPU (1110) executes a module analysis program, acquires / analyzes DII included in the data broadcast data acquired by the Demux (1141), component tag, module ID, module name, module version, etc. Get module identification information. Next, the CPU executes a module storage program and stores each module stored in the data area of the RAM (1120) in the storage data area of the RAM (1120) in a format that can be uniquely identified. At this time, the same modules are associated with each other so that the module update history can be understood, and are further accumulated as a module table permuted in the order of acquisition. When the acquired module is the same as the module stored last time, the module may be configured not to store. Next, the CPU executes a display program and displays the BML screen on the display (1145) using the latest module among the modules stored in the storage data area of the RAM (1120). The latest module means the newest module among the same modules displayed on the screen.

While the data broadcast is being displayed on the display (1145), the CPU (1110) continues to execute the module update detection program at regular intervals to detect whether the currently displayed module is updated. Module update detection is performed by comparing whether the latest module stored in the storage data area of the RAM (1120) is the same as the module newly acquired by the module acquisition program. When an update is detected, the CPU (1110) executes a display program, and a new one is acquired by the past module and the module acquisition program that are currently unacquirable and stored in the storage data area of the RAM (1120). Using the module obtained in the display (1145
) To display the BML screen. The module table stored in the storage data area may be stored in the HDD (1150) or the like when the terrestrial digital broadcast receiver is turned off.

  In the above description, only the module being viewed has been subject to update detection, but this need not necessarily be the case. For example, a module that is currently being viewed and a module that is referenced from the module may be subject to update detection. This is because the information that the user wants is not in the module and may be in the module linked from the page. Specifically, only the menu items such as “news”, “weather forecast”, and “sports” are written in the displayed module, and the actual state may be transmitted in another module. In this case, it is meaningless to save only the currently displayed module, and the link destination must be saved.

  In addition to the module transmitted as a broadcast wave, the link destination here includes a module that is placed on a server such as a broadcasting station and acquired using a communication function.

  Therefore, by targeting the module currently being viewed and the module linked from the module, the probability that the user can perform a desired operation is further increased. The link destination module can be known by analyzing the contents of the BML document.

  A BML document is used to display data broadcasting, and a link destination is described in the BML document. Therefore, by analyzing the BML document currently displayed, it is possible to determine a module that is a target for module update detection.

  In this case, the module information of the link destination described in the BML document is listed, and when DII is updated, update detection is performed for all modules, and update of one or a plurality of the modules is performed. May be displayed on the screen together with information that new information has been updated. Further, a configuration may be adopted in which a module that cannot be acquired for the first time when the user follows the link destination is displayed on the screen.

  <Embodiment 1: Process Flow> FIG. 3 is a diagram showing an example of a process flow from when the terrestrial digital broadcast receiver according to the present embodiment enters the data broadcast display mode to when the data broadcast display ends. First, in step S0301, it is determined whether the data broadcast display mode is set. If it is the data broadcast display mode, the process proceeds to the next step. Next, in step S0302, it is determined whether the data broadcast display has ended. If the data broadcast display is not finished, proceed to the next step. In step S0303, a data broadcasting module is acquired. This process is mainly executed by the module acquisition unit. A configuration may also be used in which a link destination module placed in a server such as a broadcast station linked to the data broadcast module currently received by the digital broadcast receiver is also acquired. Next, in step S0304, the acquired module is analyzed. This process is mainly executed by the module analysis unit. Module identification information is obtained by analyzing the module. Next, in step S0305, modules are accumulated. This process is mainly executed by the module storage unit. Note that a configuration in which the link destination modules are also stored may be used. At this time, each module can be uniquely identified by storing the module and the module identification information together. Next, in step S0306, it is determined whether it is the first BML screen display after the start of data broadcast display. If it is determined that the display is the first BML screen display, the process advances to step S0307 to display the BML screen using the latest module. If the determination in step S0306 is that the display is not the first BML screen display, the process advances to step S0308 to determine whether there is an updated module in the current BML screen display. This process is mainly performed by the module update detection unit. If the determination in step S0308 is that there is no updated module, the process advances to step S0307 to display the BML screen using the latest module. At this time, the current BML screen display is maintained. If the determination in step S0308 is that there is an updated module, the process advances to step S0309 to display the BML screen using the past module and the updated module. A configuration may also be possible in which link destination modules stored as past modules used for the BML screen display here can also be displayed. When the BML screen display is performed in steps S0307 and S0309, the process returns to step S0302, and the above processing is repeated. Note that this process ends when it is determined in step S0302 that the data broadcast has ended.

  Note that the determination in step S0308 may determine whether there is a module that has been updated for the module in the current BML display screen and the module referenced from the screen.

  Next, a specific mode in which the past module and the updated module are simultaneously displayed on the BML screen in S0309 will be described. By taking one of the following methods, it is possible to prevent the user's current operation from being interrupted. 4A and 5A show the (current) screen before the module update. FIGS. 4B, 4C, and 4D, and FIGS. 5B and 5C show the screens after the module update. For example, as shown in FIG. 4B, the current data broadcast display area may be divided to display the data broadcast before and after the update. Alternatively, as shown in FIG. 4C, the data broadcast before update may be displayed in the current data broadcast display area, and the updated data broadcast may be displayed in another arbitrary area. Alternatively, as shown in FIG. 4D, the updated data broadcast may be displayed in the current data broadcast display area, and the pre-update data broadcast may be displayed in another arbitrary area. Further, as shown in FIGS. 5B and 5C, a tab may be provided in the data broadcast display area so that the user can select which data broadcast before and after the update is displayed. Here, in the case of a screen with tabs, even if the same module is updated a plurality of times, each version may be held in the module storage unit and managed by two or more tabs. Which layout is selected may be set by the user in advance or may be set each time.

  In addition, the module before update and the module after update are displayed so that the information before update or after update can be identified intuitively by color coding, background blinking, character size, character thickness, etc. It is desirable that

  When returning to the original state from a screen with multiple screens and tabs, the same module can be used from (1) any timing specified by the user and (2) multiple screens and tabbed screens. Is updated, (3) when a channel is selected, (4) when the data broadcasting screen is temporarily closed and restarted, and (5) a certain time has elapsed since it became a screen with multiple screens and tabs. And so on. In the case of (5), a function for telling the user the time until the past module is not displayed may be provided.

<Embodiment 1: Effect> According to the terrestrial digital broadcast receiver of the present embodiment, when the user reads the content of data broadcast such as news, the broadcast station updates the content of the data broadcast. However, it is possible to read to the end without erasing the contents of the data broadcast that was being read. In addition, when a link is established in the data broadcast being read, the link destination information is also stored, so that the link can be followed. As a result, the user can obtain information he or she wants to know without worrying about the update timing of the data broadcast.
<< Embodiment 2 >>

  <Embodiment 2: Overview> In this embodiment, a digital terrestrial broadcast receiver, which is based on Embodiment 1 and displays a module that can be displayed immediately before module update detection, will be described.

  <Embodiment 2: Configuration> FIG. 6 shows a functional block diagram of this embodiment. The functional block diagram of the terrestrial digital broadcast receiver according to the present embodiment is almost the same as that of the first embodiment, except that the “display unit” (0609) includes the “previous display unit” (0611). Since other components are the same as those described in the first embodiment, description thereof is omitted.

  The “previous display means” (0611) has a function of displaying the latest module immediately before the past module update detection. A module that can be acquired immediately before detection of an update can also be referred to as a module that cannot be acquired due to an update. In the case of program-linked data broadcasting, it is considered that all modules in the data of the data broadcasting are updated at the end of the program, but at this time, the modules that could be acquired immediately before the detection of the update may be displayed. Of course you can. In this case, it is desirable to accumulate the module display history information together with the module accumulation in the “module accumulation unit” (0607).

  When the “display unit” (0609) is the “tab display unit”, the “previous display unit” (0611) displays a module that can be displayed immediately before update detection as a past module. Display means "may be used.

  <Embodiment 2: Hardware Configuration> The operation of hardware in this embodiment will be described with reference to FIG. The terrestrial digital broadcast receiver according to the present embodiment performs the following processing. First, when the user activates the terrestrial digital broadcast receiver, various programs such as a module acquisition program, a module analysis program, a module storage program, a module update detection program, and a display program held in a storage device such as the HDD (1150) are stored in the RAM. (1120) is expanded in the work area. When the user inputs a data broadcast viewing start signal and a broadcast wave selection signal to the light receiver (1148) using the remote controller (1149) or the like, the CPU (1110) acquires and analyzes those signals. Then, an instruction to start receiving the broadcast wave is sent to the tuner (1141) together with the broadcast wave selection signal information, and an instruction to acquire data of the data broadcast is sent to the Demux (1143). Next, the CPU (1110) executes a module acquisition program developed in the RAM (1120), and acquires a module included in the data broadcast data acquired by the Demux (1141). The acquired module is temporarily stored in the data area of the RAM (1120). Next, the CPU (1110) executes a module analysis program, acquires and analyzes the DII included in the data broadcast data acquired by the Demux (1143), and obtains a component tag, a module ID, a module name, a module version, and the like. Get module identification information. Next, the CPU executes a module storage program and stores each module stored in the data area of the RAM (1120) in the storage data area of the RAM (1120) in a format that can be uniquely identified. At this time, the same modules are associated with each other so that the module update history can be understood, and are further accumulated as a module table permuted in the order of acquisition. When the acquired module is the same as the module stored last time, the module may be configured not to store. Next, the CPU executes a display program and displays the BML screen on the display (1145) using the latest module among the modules stored in the storage data area of the RAM (1120). Further, the CPU identifies the module displayed on the display (1145), and adds the module display history information to the module table of the RAM.

  While the data broadcast is being displayed on the display (1145), the CPU (1110) continues to execute the module update detection program at regular intervals to detect whether the currently displayed module is updated. It also detects that a completely new data broadcast has started. Module update detection is performed by comparing whether the latest module stored in the storage data area of the RAM (1120) and the module newly acquired by the module acquisition program are the same, or by analyzing DII. Done. When the update is detected, the CPU (1110) executes the display program and displays the latest module stored in the storage data area of the RAM (1120) and the module newly acquired by the module acquisition program. Used to display the BML screen on the display (1145), or newly acquired by the module that has been displayed most recently and the module acquisition program among the modules stored in the storage data area of the RAM (1120) For example, BML screen display is performed on the display (1145) using the module. The module table stored in the storage data area may be stored in the HDD (1150) or the like when the terrestrial digital broadcast receiver is turned off.

  <Embodiment 2: Process Flow> FIG. 7 is a diagram showing an example of the process flow from when the terrestrial digital broadcast receiver according to the present embodiment enters the data broadcast display mode to when the data broadcast display ends. First, in step S0701, it is determined whether the data broadcast display mode is set. If it is the data broadcast display mode, the process proceeds to the next step. Next, in step S0702, it is determined whether or not the data broadcast display has ended. If the data broadcast display is not finished, proceed to the next step. In step S0703, a data broadcasting module is acquired. This process is mainly executed by the module acquisition unit. Next, in step S0704, the acquired module is analyzed. This process is mainly executed by the module analysis unit. Module identification information is obtained by analyzing the module. Next, in step S0705, modules are accumulated. This process is mainly executed by the module storage unit. At this time, each module can be uniquely identified by storing the module and the module identification information together. Next, in step S0706, it is determined whether it is the first BML screen display after the start of data broadcast display. If it is determined that the display is the first BML screen display, the process advances to step S0707 to display the BML screen using the latest module. If it is determined in step S0706 that the display is not the first BML screen display, the process advances to step S0708 to determine whether there is an updated module in the current BML screen display. This process is mainly performed by the module update detection unit. If the determination in step S0708 is that there is no updated module, the process advances to step S0707 to display the BML screen using the latest module. At this time, the current BML screen display is maintained. If the determination in step S0708 is that there is an updated module, the process advances to step S0709 to display the BML screen using the module immediately before the update detection and the updated module. If BML screen display is performed in steps S0707 and S0709, the process returns to step S0702 and the above processing is repeated. Note that this process ends when it is determined in step S0702 that the data broadcast has ended.

  Note that the determination in step S0708 may determine whether there is an updated module for the module in the current BML display screen and the module referenced from the screen. A specific method for simultaneously displaying the module immediately before the update detection and the module after the update is the same as in the first embodiment.

  <Embodiment 2: Effect> According to the terrestrial digital broadcast receiver of the present embodiment, when the broadcast station updates the content of the data broadcast while the user is reading the content of the data broadcast such as news. However, it is possible to read to the end without erasing the contents of the data broadcast that was being read. In addition, when a link is established in the data broadcast being read, the link destination information is also stored, so that the link can be followed. As a result, the user can obtain information he or she wants to know without worrying about the update timing of the data broadcast.

In addition, in program-linked data broadcasting, if an application for a sweepstakes program is being broadcast, the user can operate even if the data broadcasting data is updated during the application for the sweepstakes. The operation is not disabled during the operation, and the desired operation can be continued.
<< Embodiment 3 >>

  <Embodiment 3: Overview> In this embodiment, a terrestrial digital broadcast receiver is described which is based on Embodiment 1 and displays a module which has been displayed a desired number of times before.

  <Embodiment 3: Configuration> FIG. 8 shows a functional block diagram of this embodiment. The functional block diagram of the terrestrial digital broadcast receiver according to the present embodiment is substantially the same as that of the first embodiment, except that it further includes a “display control unit” (0811).

  In the present embodiment, the “module storage unit” (0807) stores modules in a format in which the number of module update detections can be specified when the same module is updated. The update count and the module may be stored in association with each other, or the update count may be specified by storing the module updated at the update time together with the update time information. Moreover, the structure memorize | stored in the order of update may be sufficient. Details will be described later with specific examples.

  The “display control unit” (0811) has a function of designating the number of times of update detection as a past module and specifying the past module of the module storage unit to the display unit.

  When the “display unit” (0809) is “tab display unit”, the “display control unit” (0811) designates the number of times of update detection as a past module and tabs the past module of the module storage unit. It may be a “tab display control unit” having a function of specifying the display unit.

  Since other components are the same as those described in the first embodiment, description thereof is omitted.

  Hereinafter, a specific example will be described with reference to FIG. Assume that the user has been watching the “news” module of data broadcasting from 21:00. Assume that the user is currently viewing the “news” module updated at 21:30 as shown in FIG. This is referred to as “news 2130”. The “news” module is updated every 10 minutes. Then, conventionally, the time during which “news 2130” can be viewed is only between 21:30 and 21:40. At 21:40, the “news” module is updated and “news 2140” can be viewed. The information of “News 2130” is erased from the broadcast wave from the broadcast station, and cannot be viewed in the conventional art. At this time, the module update detection unit detects a module update of “news”, and holds “news 2130” in the module storage unit as a module one time before the module of “news” that can be viewed at present. As described above, the past module that is currently unacquirable is held in association with the number of updates. As a result, a module table as shown in FIG. 9B is created in the “module storage unit”. If the user wants to watch “News 2110” that was updated three times before 21:10 and was broadcast until 21:20, “News 2110” will be broadcast and “News 2140” will be broadcast. 3 is designated as the number of updates until the broadcast is broadcast, and is input to the terrestrial digital broadcast receiver using a remote controller or the like. Then, the “display control unit” can designate a past module desired by the user from the “module storage unit” and display it on the “display unit”.

  Further, as shown in FIG. 9C, the module table may store modules updated at the update time together with the update time information. The update time information may include date information. With such a module table, it is easy to arrange the modules in the update order. In this case, the past module may be specified with an update time of 21:10. Furthermore, if the modules are stored in the order of update, it is possible to specify the previous module three times without storing it with the number of updates and time.

  Here, the explanation was made assuming that the user was watching the “news” module all the time, but until 21:30, the “weather forecast” module was being watched, and after that, from 21:30. It is also possible to see all of the “news” modules from 21 o'clock to 21:30 when starting to watch “news”.

  <Third Embodiment: Hardware Configuration> The operation of the hardware in this embodiment will be described with reference to FIG. The terrestrial digital broadcast receiver according to the present embodiment performs the following processing. First, when the user activates the terrestrial digital broadcast receiver, various programs such as a module acquisition program, a module analysis program, a module storage program, a module update detection program, and a display program held in a storage device such as the HDD (1150) are stored in the RAM. (1120) is expanded in the work area. When the user inputs a data broadcast viewing start signal and a broadcast wave selection signal to the light receiver (1148) using the remote controller (1149) or the like, the CPU (1110) acquires and analyzes those signals. Then, an instruction to start receiving the broadcast wave is sent to the tuner (1141) together with the broadcast wave selection signal information, and an instruction to acquire data of the data broadcast is sent to the Demux (1143). Next, the CPU (1110) executes a module acquisition program developed in the RAM (1120), and acquires a module included in the data broadcast data acquired by the Demux (1143). The acquired module is temporarily stored in the data area of the RAM (1120). Next, the CPU (1110) executes a module analysis program, acquires and analyzes the DII included in the data broadcast data acquired by the Demux (1143), and obtains a component tag, a module ID, a module name, a module version, and the like. Get module identification information. Next, the CPU executes a module storage program and stores each module stored in the data area of the RAM (1120) in the storage data area of the RAM (1120) in a format that can be uniquely identified. At this time, the same modules are associated with each other so that the module update history can be understood, and are further accumulated as a module table permuted in the order of acquisition. When the acquired module is the same as the module stored last time, the module may be configured not to store. Next, the CPU executes a display program and displays the BML screen on the display (1145) using the latest module among the modules stored in the storage data area of the RAM (1120).

  When the user inputs a signal designating the number of times of update detection to the light receiver (1148) using the remote controller (1149) or the like, the CPU executes the display program and accumulates it in the storage data area of the RAM (1120). BML screen display is performed on the display (1145) using the past module that can be displayed before the designated number of update times and the latest module stored in the storage data area. That's it. The modules stored in the storage data area may be stored in the HDD (1150) or the like when the terrestrial digital broadcast receiver is turned off.

  <Third Embodiment: Flow of Processing> FIG. 10 shows an example of the flow of processing from when the terrestrial digital broadcast receiver according to the present embodiment starts receiving broadcast waves from a broadcast station until it is presented on the display unit. FIG. First, in step S1001, it is determined whether the data broadcasting display mode is set. If it is the data broadcast display mode, the process proceeds to the next step. Next, in step S1002, it is determined whether or not the data broadcast display has ended. If the data broadcast display is not finished, proceed to the next step. In step S1003, a data broadcasting module is acquired. This process is mainly executed by the module acquisition unit. Next, in step S1004, the acquired module is analyzed. This process is mainly executed by the module analysis unit. Module identification information is obtained by analyzing the module. Next, in step S1005, modules are accumulated. This process is mainly executed by the module storage unit. At this time, each module can be uniquely identified by storing the module and the module identification information together. In step S1006, it is determined whether an input for specifying the number of times of update detection has been received from the user. When there is an input, the user specifies a past module desired by receiving update detection frequency designation information from the user. This process is mainly executed by the display control unit. In step S1008, BML screen display is performed using the past module and the latest module desired by the user. This process is mainly executed by the display unit. The method of displaying simultaneously is the same as in the first embodiment. In addition, only the past module desired by the user may be displayed, and the latest module may not be displayed. If there is no input in step S1006, a BML screen is displayed using the latest module in step S1007. When the BML screen display is performed in step S1007 and step S1008, the process returns to step S1002 and the above processing is repeated. This process ends when it is determined in step S1002 that the data broadcast has ended.

  <Embodiment 3: Effect> When a user misses news or the like, or when he / she wants to see once seen news or the like, it can be viewed by designating a time or the number of updates.

The figure explaining the terrestrial digital broadcast receiver which concerns on Embodiment 1. FIG. Functional block diagram of a terrestrial digital broadcast receiver according to Embodiment 1 Process Flow Diagram of Digital Terrestrial Broadcasting Receiver According to Embodiment 1 Example of BML display screen of terrestrial digital broadcast receiver according to Embodiment 1 Example of BML display screen of terrestrial digital broadcast receiver according to Embodiment 1 Functional block diagram of a terrestrial digital broadcast receiver according to Embodiment 2 Process Flow Diagram of Digital Terrestrial Broadcasting Receiver According to Embodiment 2 Functional block diagram of a terrestrial digital broadcast receiver according to Embodiment 3 The figure explaining the terrestrial digital broadcast receiver which concerns on Embodiment 3. FIG. Functional processing flow diagram of terrestrial digital broadcast receiver according to Embodiment 3 An example of a hardware configuration according to the present invention Functional block diagram of a conventional digital terrestrial broadcast receiver Example of general video / BML display screen Program-linked and non-program-linked BML display screen examples

Explanation of symbols

0201 Antenna unit 0202 Tuner unit 0203 Demux unit 0204 Decoder unit 0205 Module acquisition unit 0206 Module analysis unit 0207 Module storage unit 0208 Module update detection unit 0209 Display unit 0210 Speaker unit

Claims (14)

A digital broadcast receiver;
A module acquisition unit for acquiring a data broadcast module from the digital broadcast reception unit;
A module storage unit for storing acquired modules;
A module update detection unit for detecting module updates using DII;
Triggered by the detection of the update, a display unit capable of simultaneously displaying information based on both a currently acquirable module and a past module that has been accumulated in the module accumulating unit and is currently unavailable. ,
A terrestrial digital broadcast receiver.   The digital terrestrial broadcasting receiver according to claim 1, wherein the display unit includes immediately before display means for displaying a latest module immediately before detection of an update as a past module.   The terrestrial digital broadcast receiver according to claim 1, further comprising a display control unit that designates the number of times of update detection as a past module and causes the display unit to specify a past module of the module storage unit. A digital broadcast receiver;
A module acquisition unit for acquiring a data broadcast module from the digital broadcast reception unit;
A module storage unit for storing acquired modules;
A module update detection unit for detecting module updates using DII;
Using the detection of the update as a trigger, information based on both the currently acquirable module and the past module that has been accumulated in the module accumulating unit and is now unacquirable can be switched and displayed on the tab. A tab display,
A terrestrial digital broadcast receiver.   5. The digital terrestrial broadcast receiver according to claim 4, wherein the tab display unit includes a tab immediately before display unit that displays a latest module immediately before detection of an update as a past module.   The terrestrial digital broadcast receiver according to claim 4 or 5, further comprising a tab display control unit that specifies the number of times of update detection as a past module and identifies a past module of the module storage unit with respect to the tab display unit. A digital broadcast receiving step;
A module acquisition step of acquiring a data broadcast module from the digital broadcast receiver;
A module storage step for storing the acquired module;
A module update detection step of detecting a module update using DII;
Triggering the detection of the update as a trigger, a display step capable of simultaneously displaying information based on both a currently acquirable module and a past module that has been accumulated in the module accumulating unit and is now unacquirable. ,
A method of operating a terrestrial digital broadcast receiver. The operation method of the terrestrial digital broadcast receiver according to claim 7, wherein the display step includes a immediately before display substep of displaying the latest module immediately before detection of update as a past module. The operation method of the terrestrial digital broadcast receiver according to claim 7 or 8, further comprising a display control step of specifying a past module by designating a number of times of update detection as the past module. A digital broadcast receiving step;
A module acquisition step of acquiring a data broadcast module from the digital broadcast receiver;
A module storage step for storing the acquired module;
A module update detection step of detecting a module update using DII;
Using the detection of the update as a trigger, information based on both the currently acquirable module and the past module that has been accumulated in the module accumulating unit and is now unacquirable can be switched and displayed on the tab. Tab display step,
A method of operating a terrestrial digital broadcast receiver. The operation method of the digital terrestrial broadcasting receiver according to claim 10, wherein the tab display step includes a tab immediately before display substep for displaying a latest module immediately before detection of an update as a past module. The operation method of the terrestrial digital broadcast receiver according to claim 10 or 11, further comprising a tab display control step of specifying a past module by specifying the number of times of update detection as the past module. The module acquisition unit has a function to automatically acquire a link destination module placed in a server such as a broadcasting station linked from the data broadcasting module currently received by the digital broadcast receiving unit by communication. ,
The module storage unit also stores automatically acquired link destination modules,
The terrestrial digital broadcast receiver according to any one of claims 1 to 6, wherein the display unit or the tab display unit can also display a link destination module stored as a past module. The module storage step is a sub-step for automatically acquiring and storing a link destination module placed on a server such as a broadcasting station linked to the data broadcast module currently received by the digital broadcast receiver through communication. Further comprising
The operation method of the digital terrestrial broadcasting receiver according to any one of claims 7 to 12, wherein the display step or the tab display step can also display a link destination module stored as a past module.

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