JP2013214928A - Information processing apparatus and method, and computer program and information recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suitably detect a highlight object.SOLUTION: An information processing apparatus (100) includes: acquisition means (121) for acquiring contents including object information specifying a display object and key event information specifying processing corresponding to an operation input for the display object; first detection means (122) for detecting change of a display content of the display object, which occurs when processing specified by the key event information is executed; and second detection means (123) for detecting the highlight object based on the change of the display content. The second detection means detects part of a display area, which is obtained by removing the display area corresponding to the highlight object that has already detected from the display area where the change of the display content occurs when the processing specified by the key event information is executed, as a new highlight object.

Description

  The present invention relates to an information processing apparatus and method for displaying arbitrary contents such as data broadcast contents included in digital broadcasting, a computer program for causing a computer to function as such an information processing apparatus, and such a computer program is recorded. The present invention relates to the technical field of information recording media.

  In television broadcasting, various programs such as information programs, news programs, drama programs, and movie programs are broadcast, and the user can view these television programs as desired. In particular, in recent years, full-fledged data broadcasting services have started with the start of BS (Broadcast Satellite) digital broadcasting and terrestrial digital broadcasting. Therefore, for example, the information processing apparatus receives data broadcast content broadcast by terrestrial digital broadcast, BS digital broadcast, or the like, and displays the received data broadcast content.

  Conventionally, for data broadcasting content, a user uses a remote controller (hereinafter referred to as “remote controller”) that includes a direction key for instructing movement of the focus in the vertical and horizontal directions and a determination key for instructing determination. By operating, the data broadcast content can be operated interactively. However, since the operation is performed using a remote controller, there is a technical problem that operability is poor.

  For this reason, under the premise that BML (Broadcast Markup Language), which is a standard for describing data broadcasting content, only assumes operation with a remote controller, as disclosed in Patent Document 1 and Patent Document 2, An information processing apparatus for performing an operation using a pointing device has been developed. Specifically, in Patent Document 1 and Patent Document 2, when a highlight object that is a user's operation target is detected and an operation using a pointing device is performed, the detected highlight object is detected. An information processing apparatus that performs processing based on a database is disclosed.

JP 2009-188789 A JP 2010-28565 A

  However, Patent Document 1 discloses an information processing apparatus that detects a highlight object by analyzing BML constituting content, but does not disclose a specific method for analyzing BML. Similarly, Patent Document 2 discloses an information processing apparatus that detects, as a highlight object, a drawing object that changes due to an interrupt event during display of content. Not disclosed.

  The present invention has been made in view of the above-described problems, for example, and more suitably detects a highlight object that is a target of a user's operation (in other words, provides a specific method for detecting a highlight object). It is an object to provide an information processing apparatus and method, a computer program, and an information recording medium.

  An information processing apparatus for solving the above problem includes content including object information that defines at least one display object, and key event information that defines at least one process corresponding to an operation input for the display object. An acquisition means for acquiring, a first detection means for detecting a change in display content of the display object caused by executing the processing specified by the key event information by analyzing the content; and the display content Second detection means for detecting a highlight object to be operated by a user among the display objects based on the change of the display object, wherein the second detection means executes the process defined by the key event information From the display area where the display content changes as a result, the already detected The part of the display area by removing the display region corresponding to illite object is detected as a new said highlight object.

  An information processing method for solving the above-described problem includes content including object information that defines at least one display object and key event information that defines at least one process corresponding to an operation input for the display object. An acquisition step of acquiring, a first detection step of detecting a change in display content of the display object caused by executing the processing defined by the key event information by analyzing the content, and the display content And a second detection step of detecting a highlight object to be operated by the user among the display objects based on the change of the display object, wherein the second detection step is executed by the process defined by the key event information From the display area where the display content changes as a result, the already detected The part of the display area by removing the display region corresponding to illite object is detected as a new said highlight object.

  A computer program for solving the above-described problem causes a computer to function as the information processing apparatus described above.

  The above-described computer program is recorded on an information recording medium for solving the above problems.

  The effect | action and gain of this invention are clarified from embodiment described below.

It is a block diagram which shows the whole structure of the data broadcasting receiver of a present Example. It is a block diagram which shows the structure of CPU with which a data broadcasting receiver is provided. It is a top view which shows the example of a display of the data broadcast content on a display. It is a flowchart which shows the flow of detection operation | movement of a highlight object among the operations which a data broadcasting receiver performs. It is a top view which shows the flow of detection operation | movement of the highlight object for specific data broadcasting content. FIG. 6 is a data structure diagram showing a data structure of a database generated by a highlight object detection operation for the specific data broadcast content shown in FIG. 5. It is a flowchart which shows the flow of reception operation | movement of the operation input using a pointing device among the operations which a data broadcasting receiver performs.

  Hereinafter, an information processing apparatus and method, a computer program, and an information recording medium according to the present embodiment will be described as modes for carrying out the invention.

(Embodiment of information processing apparatus)
<1>
The information processing apparatus according to this embodiment acquires content including object information that defines at least one display object, and key event information that defines at least one process corresponding to an operation input for the display object. A first detecting means for detecting a change in the display content of the display object caused by executing the processing specified by the key event information by analyzing the content, and a change in the display content. Based on the display object, a second detection means for detecting a highlight object to be operated by the user, wherein the second detection means executes the process defined by the key event information. From the display area where the display content changes, the highlighted object already detected The part of the display area by removing the display region corresponding to objects is detected as a new said highlight object.

  According to the information processing apparatus of this embodiment, first, the acquisition unit acquires content. The acquired content may be displayed on a display screen or the like provided in a display unit provided in the information processing apparatus or provided separately from the information processing apparatus. Note that the information processing apparatus of this embodiment may include an output unit that directly outputs content to the display unit as data in a format that can be directly processed by the display unit. Alternatively, the processing apparatus of the present embodiment indirectly outputs content to the display unit as data that is converted into data in a format that can be directly processed by the display unit by performing predetermined processing (for example, output) Output means for outputting content to an external or internal processing means provided between the means and the display means.

  Here, the “content” of the present embodiment includes object information and key event information. The object information is information indicating at least one display object that is actually displayed (in other words, drawn) on the display screen in a manner that is visible or identifiable by the user. Such object information includes, for example, information indicating the type, display position, and image of the display object. “Key event information” is information that defines a process to be executed in response to some operation input to the display object. An example of such key event information is a script itself that defines processing details in data broadcasting content. Such key event information includes, for example, information indicating an operation input serving as a trigger for a corresponding process, an operation content such as a change in display mode of a display object according to the process, and the like.

  In the “content” of the present embodiment, the object information and the key event information may be described in a clearly separated state. An example of such content is data broadcast content that is broadcast on BS digital broadcast or terrestrial digital broadcast, for example. In this case, the content is described in BML including ECMAScript. Of course, the “content” of the present embodiment is not limited to the data broadcast content, but object information (in other words, information indicating the display object itself on the display screen) and key event information (in other words, displayed on the display screen). If the content is described in a state in which the information (information indicating the processing performed on the displayed object itself) is separated, it can be an example of the content of the present embodiment. Alternatively, object information (in other words, information indicating the display object itself on the display screen) and key event information (in other words, information indicating the processing itself performed on the display object displayed on the display screen) are integrated. Even content described in a state can be an example of the content of the present embodiment.

  Such content (typically data broadcasting content) is designed on the premise of operation using a remote controller. However, in the present embodiment, an intuitive operation using a pointing device such as a touch panel, a mouse, a tablet, or a touch pad is provided for such content.

  In order to provide such an intuitive operation, in the present embodiment, first, the first detection unit analyzes the content directly or indirectly, thereby executing a process specified by the key event information. The change of the display content of the display object caused by this is detected. For example, the first detection unit is a process (for example, a user's attention or selection) corresponding to an operation input (for example, an operation input using a direction key) for selecting an operation direction as an example of a process defined by the key event information. Change of the display content of the display object caused by the execution of the process of shifting the focus indicating that the display object is being executed is detected. More specifically, for example, the first button to the fourth button are displayed as display objects, and the focus changes from the first button to the second button by the process corresponding to the operation input for changing the focus downward. In this case, the first detection means changes the display content of the first button (that is, changes from the focused state to the non-focused state) and changes the display content of the second button (that is, the focus). Change from no state to focus state).

  In addition, in the present embodiment, the second detection unit detects a highlight object that is a display object to be operated by the user based on a change in display content of the display object detected by the first detection unit. Here, “highlight object” means a display object that is a target of some action by an operation input using an operation means such as a remote controller. Indicates possible (in other words, executable) display objects.

  In particular, in the present embodiment, the second detection means performs a process between the display area where the display content changes due to the execution of the process defined by the key event information and the display area corresponding to the already detected highlight object. The highlight object is detected in consideration of the relationship. Specifically, the second detecting means removes a display area corresponding to a highlight object that has already been detected from a display area in which the display content changes due to execution of the process specified by the key event information. The display area is detected as a new highlight object. In other words, the second detection means corresponds to the difference between the display area in which the display content changes due to the execution of the process specified by the key event information and the display area corresponding to the already detected highlight object. A part of the display area to be detected is detected as a new highlight object.

  Here, the change in display content caused by the execution of the process specified by the key event information is often caused by, for example, focus transition. Therefore, it is estimated that a highlight object is included in the display area in which the display content changes due to the execution of the process specified by the key event information. On the other hand, the display area in which the display content is changed by executing the process specified by the key event information may include not only one highlight object but also two or more highlight objects. High nature. In other words, in the display area where the display contents change due to the execution of the process specified by the key event information, not only the highlight object where the focus is currently located, but also the focus at the past time. There is a high possibility that the highlighted object is also included. For example, when the first button to the fourth button are displayed as display objects and the focus changes from the first button to the second button by the process corresponding to the operation input for changing the focus downward, the key In the display area where the display content changes due to the processing specified by the event information, the first button that changes from the focused state to the unfocused state (that is, the focus is located at a past time). Highlight object) and a second button that changes from a state without focus to a state with focus (that is, the highlight object that is currently focused). For this reason, a highlight object that has already been detected from a display area (for example, a display area corresponding to both the first button and the second button) in which the display content changes due to execution of the process specified by the key event information. If the display area corresponding to (for example, the display area corresponding to only the first button) is removed, the display area corresponding to a new highlight object (particularly, a single highlight object) (for example, only the second button) The display area corresponding to is suitably detected.

  As described above, the information processing apparatus according to the present embodiment can preferably detect the highlight object.

<2>
In another aspect of the information processing apparatus according to the present embodiment, the second detection unit includes: (i) a display area in which the display content changes due to execution of the process defined by one key event information; and (Ii) the process executed following the process specified by the one key event information and the process specified by another key event information different from the one key event information is executed Then, a display area that is included in both of the display areas where the display content has changed is further detected as the highlight object.

  According to this aspect, the second detection means executes the display area where the display content changes due to the execution of the process specified by one key event information, and the process specified by the other key event information. Thus, the highlight object is detected in consideration of the relationship with the display area where the display content changes. For example, the second detection means may execute a process defined by one key event information to cause a display area to change in display content and a process defined by other key event information (that is, one key event information). The highlight object is detected in consideration of the relationship with the display area in which the display contents change due to the execution of the process to be executed subsequent to the process defined by (1). In other words, the second detection means is a process defined by each of two key event information (that is, one key event information and another key event information) that defines two processes to be executed in succession in time. The highlight object is detected in consideration of the relationship between the display areas in which the display contents change due to the execution of. Specifically, the second detection means executes a process defined by another key event information and a display area in which the display content changes due to the process defined by one key event information being executed. The display area that is included in both the display area and the display area where the display content changes is detected as a new highlight object.

  Here, the change in display content caused by the execution of the process specified by the key event information is often caused by, for example, focus transition. Therefore, it is estimated that a highlight object is included in the display area in which the display content changes due to the execution of the process specified by the key event information. On the other hand, the display area in which the display content is changed by executing the process specified by the key event information may include not only one highlight object but also two or more highlight objects. High nature. In other words, in the display area where the display contents change due to the execution of the process specified by the key event information, not only the highlight object where the focus is currently located, but also the focus at the past time. There is a high possibility that the highlighted object is also included. For example, when the first button to the fourth button are displayed as display objects and the focus changes from the first button to the second button by the process corresponding to one operation input for changing the focus downward. In the display area in which the display contents change due to the processing specified by the key event information, the first button that changes from the focused state to the unfocused state (that is, the focus is positioned at the past time). Highlight object) and a second button that changes from a state without focus to a state with focus (that is, the highlight object that is currently focused). When, for example, another operation input for shifting the focus downward is executed following such a state, the focus changes from the second button to the third button by processing corresponding to the operation input. In the display area where the display content changes due to the processing specified by the key event information, the second button that changes from the focused state to the unfocused state (that is, the focus has been in the past). A highlight object that is positioned) and a third button that changes from a state without focus to a state with focus (that is, the highlight object that is currently focused). For this reason, a display area (for example, a display area corresponding to both the first button and the second button) in which the display content changes due to execution of processing defined by one key event information and other key event information The display area that overlaps with the display area (for example, the display area corresponding to both the second button and the third button) in which the display contents change due to the processing specified by is extracted. For example, a display area (for example, a display area corresponding to only the second button) corresponding to a new highlight object (particularly, a single highlight object) is preferably detected.

<3>
As described above, a display area in which the display content changes due to the processing specified by one key event information and a display in which the display content changes due to execution of the processing specified by other key event information In another aspect of the information processing apparatus that further detects, as a highlight object, a display area that is included in both areas, the second detection unit performs the process defined by the one key event information. If the highlight object in the state has already been detected, the one of the display contents is changed from the display area in which the display content is changed by executing the processing specified by the other key event information. A part of the display area excluding the display area corresponding to the highlight object in a state in which the process specified by the key event information is executed It is detected as illite object.

  According to this aspect, when the highlight object in the state where the process specified by one key event information has been already detected, the process specified by the other key event information is executed. By removing the display area corresponding to the highlight object in the state where the process specified by one key event information is executed from the display area where the display content has changed, the process specified by other key event information The highlight object in the executed state is preferably detected.

<4>
As described above, a display area in which the display content changes due to the processing specified by one key event information and a display in which the display content changes due to execution of the processing specified by other key event information In another aspect of the information processing apparatus that further detects, as a highlight object, a display area that is included in both areas, the second detection unit performs the process defined by the one key event information. If the highlight object in the state has not yet been detected, the display area in which the display content has changed due to the execution of the processing specified by the one key event information and the other key event A display area that is duplicated in both of the display areas in which the display content has changed due to the execution of the process specified by the information is newly added to the highlight area. It is detected as an object.

  According to this aspect, when the highlight object in the state where the process specified by the one key event information has been executed has not been detected yet, the process specified by the one key event information is executed. By extracting the display area that overlaps both the display area in which the display content has changed and the display area in which the display content has changed by executing the processing specified by the other key event information, A highlight object in a state where the process specified by the key event information is executed is preferably detected.

<5>
In another aspect of the information processing apparatus of the present embodiment, the first detection unit analyzes the content by analyzing at least one of a code constituting the object information and a code constituting the key event information. .

  According to this aspect, the first detection means defines the key event information by analyzing the code constituting the content (that is, at least one of the code constituting the object information and the code constituting the key event information). It is possible to detect a change in the display content of the display object caused by executing the process.

<6>
In another aspect of the information processing apparatus of the present embodiment, the first detection unit displays the display that is actually or virtually displayed while actually or virtually executing the processing specified by the key event information. The content is analyzed by analyzing the display content of the object.

  According to this aspect, the first detection means reproduces, displays, or executes the content actually or virtually (in other words, in a pseudo manner), thereby executing the process specified by the key event information. It is possible to detect a change in the display content of the display object that occurs. In particular, according to this aspect, since the first detection unit does not need to analyze a code that constitutes relatively complicated content, the display content of the display object that is generated when the process specified by the key event information is executed. Can be detected relatively easily.

(Embodiment of information processing method)
<7>
Embodiments according to the information processing method of the present embodiment include object information that defines at least one display object and key event information that defines at least one process corresponding to an operation input for the display object. A first detection step of detecting a change in display content of the display object caused by executing the processing defined by the key event information by analyzing the content, and the display A second detection step of detecting a highlight object to be operated by a user among the display objects based on a change in content, wherein the second detection step includes the process defined by the key event information. From the display area where the display contents change when executed, The part of the display area by removing the display region corresponding to a highlight object, is detected as a new said highlight object.

  According to the information processing method of the present embodiment, it is possible to suitably enjoy the same effects as the various effects that can be enjoyed by the information processing apparatus of the present embodiment described above.

  Incidentally, in response to various aspects that can be adopted by the information processing apparatus of the present embodiment described above, the information processing method of the present embodiment can also adopt various aspects.

(Embodiment of computer program)
<8>
The computer program according to the present embodiment causes the computer to function as the information processing apparatus according to the present embodiment described above (including various aspects thereof).

  According to the computer program of this embodiment, the computer program is read from a recording medium such as a ROM, CD-ROM, DVD-ROM, and hard disk that stores the computer program and executed, or the computer If the program is executed after being downloaded to a computer via communication means, the information processing apparatus of the present embodiment described above can be realized relatively easily.

  Incidentally, in response to various aspects that can be adopted by the information processing apparatus of the present embodiment described above, the computer program of the present embodiment can also adopt various aspects.

(Embodiment of information recording medium)
<9>
The information recording medium of the present embodiment records the above-described computer program of the present embodiment (including various aspects thereof).

  According to the information recording medium of the present embodiment, when the computer program is read from a recording medium such as a ROM, CD-ROM, DVD-ROM, and hard disk in which the computer program is recorded and executed, the above-described book is recorded. The information processing apparatus of the embodiment can be realized relatively easily.

  Incidentally, in response to various aspects that can be adopted by the information processing apparatus of the present embodiment described above, the information recording medium of the present embodiment can also adopt various aspects.

  Such an operation and other advantages of the present embodiment will be further clarified from examples described below.

  As described above, the information processing apparatus according to the present embodiment includes an acquisition unit, a first detection unit, and a second detection unit. The information processing method of this embodiment includes an acquisition step, a first detection step, and a second detection step. The computer program of this embodiment causes a computer to function as the information processing apparatus of this embodiment. The information recording medium of the present embodiment records the computer program of the present embodiment. Accordingly, the highlight object is preferably detected.

  Embodiments of the information processing apparatus will be described below with reference to the drawings.

  In the following, an example in which the information processing apparatus is applied to a data broadcast receiving apparatus 100 that reproduces data broadcast content described in a markup language such as a BML script will be described. That is, hereinafter, data broadcast content described in a markup language such as a BML script will be described as an example of content. Accordingly, in the embodiment described below, the object information indicating the display object and the script information indicating the processing script are described by the BML script. However, the configuration and operation of the data broadcast receiving apparatus 100 described below may be applied to any information processing apparatus that operates in a manner described later for any content other than the data broadcast content. However, the content that is the target of the operation of the information processing apparatus includes both the object information indicating the display object and the script information indicating the processing script in a form in which the object information and the script information are separated or integrated. It is preferable.

(1) Configuration of Information Processing Device First, the configuration of the data broadcast receiving device 100 of this embodiment will be described with reference to FIGS. 1 and 2.

(1-1) Overall Configuration of Information Processing Device First, the overall configuration of the data broadcast receiving device 100 of this embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing the overall configuration of the data broadcast receiving apparatus 100 of this embodiment.

  As shown in FIG. 1, the data broadcast receiving apparatus 100 includes a receiving unit 110, a CPU (Central Processing Unit) 120, a memory 130, an input / output unit 140, a display 141, a pointing device 142, and a bus 150. Is provided.

  The receiving unit 110 receives broadcast radio waves or the like via the antenna 111, and acquires data broadcast content included in the broadcast radio waves.

  The CPU 120 is a device that controls the operation of each unit of the data broadcast receiving device 100. The CPU 120 controls the operation of each part of the data broadcast receiving apparatus 100 by receiving a signal input from each part via the bus 150 and outputting a signal to each part.

  The memory 130 is an information recording device such as a DRAM, a flash memory, or a hard disk drive. The memory 130 includes a ROM area for storing firmware for the operation of the CPU 120 and a RAM area used for general data processing in the data broadcast receiving apparatus 100 as a recording area.

  The input / output unit 140 is further connected to the display 141 and the pointing device 142, and is an interface that controls input / output of signals between the receiving unit 110 and the CPU 120 and the display 141 and the pointing device 142. Specifically, the input / output unit 140 outputs the data broadcast content acquired by the receiving unit 110 to the display 141. In addition, the input / output unit 140 outputs the processing content instructed by the CPU 120 for the data broadcasting content to the display 141. The input / output unit 140 receives a user operation input input via the pointing device 142 and outputs the received user operation input to the CPU 120.

  The display 141 constitutes a specific example of “display means” and is a display device for displaying data broadcast content acquired by the receiving unit 110. Examples of the display 141 include a liquid crystal display, a plasma display, a cathode ray tube display, and an organic EL display.

  The pointing device 142 is a device for inputting a user operation input for the data broadcast content displayed on the display 141 to the data broadcast receiving apparatus 100. The pointing device 142 is an example of a user operation, for example, an operation input for designating a direction in the display screen (for example, upward, downward, leftward, rightward, etc.) or any display displayed on the display screen. An operation input for designating an object directly or indirectly (in other words, selecting), an operation input for designating a coordinate on the display screen directly or indirectly, and the like are accepted. The pointing device 142 outputs the received operation input to the input / output unit 140. Examples of such a pointing device 142 include a mouse, a touch pad, a touch panel integrated with a display screen of the display 141, and the like. Alternatively, the pointing device 142 may be a user's finger, an external stylus, or the like.

  Note that at least one of the display 141 and the pointing device 142 may be an independent device provided outside the data broadcast receiving device 100. That is, the data broadcast receiving apparatus 100 may not include at least one of the display 141 and the pointing device 142.

  The bus 150 is a signal input / output bus that connects the units included in the data broadcast receiving apparatus 100.

(1-2) Configuration of CPU Subsequently, the configuration of the CPU 120 included in the data broadcast receiving apparatus 100 will be described with reference to FIG. FIG. 2 is a block diagram illustrating a configuration of the CPU 120 included in the data broadcast receiving apparatus 100.

  As shown in FIG. 2, the CPU 120 includes a content acquisition unit 121, a content reproduction processing unit 122, a change information analysis unit 123, a key event conversion unit 124, a key event input unit 125, and a database 126. Note that each of the content acquisition unit 121, the content reproduction processing unit 122, the change information analysis unit 123, the key event conversion unit 124, and the key event input unit 125 is a processing circuit physically realized on the CPU 120 (for example, IC ( Integrated Circuit). Alternatively, each of the content acquisition unit 121, the content reproduction processing unit 122, the change information analysis unit 123, the key event conversion unit 124, and the key event input unit 125 is logically or functionally executed by a computer program or the like that operates on the CPU 120. It may be a processing block to be realized.

  The content acquisition unit 121 constitutes a specific example of “acquisition means”, and acquires the data broadcast content acquired by the reception unit 110. The content acquisition unit 121 outputs the acquired data broadcast content to the content reproduction processing unit 122.

  The content reproduction processing unit 122 controls the operation of the display 141 so that the data broadcast content output from the content acquisition unit 121 is displayed on the display 141. In addition, the content reproduction processing unit 122 changes the display content on the display 141 in accordance with an operation input (for example, an operation input specifying a direction using a direction key) input from the key event input unit 125. Thus, the operation of the display 141 is controlled. The content reproduction processing unit 122 controls the operation of the display 141 so that the display content on the display 141 is changed by actually or virtually executing an event handler corresponding to the operation input. Further, the content reproduction processing unit 122 constitutes a specific example of “first detection means”, and detects a change in display content of the data broadcast content. The content reproduction processing unit 122 outputs the detected change in display content to the change information analysis unit 123 as display change information.

  The change information analysis unit 123 constitutes a specific example of “second detection means”, and is based on display change information output from the content reproduction processing unit 122 (that is, change in display content of data broadcast content). The highlight object included in the data broadcast content is detected. Specifically, the change information analysis unit 123 is a data broadcast content that is actually displayed on the display 141 or virtually displayed in the content reproduction processing unit 122 under the control of the content reproduction processing unit 122. The operation of the key event input unit 125 is controlled so as to input a key event for. As a result, according to the key event input from the key event input unit 125, it is actually displayed on the display 141 under the control of the content reproduction processing unit 122 or virtually displayed in the content reproduction processing unit 122. The display content of the data broadcasting content being changed changes. Thereafter, the change information analysis unit 123 acquires the display change information corresponding to the change in the display content from the content reproduction processing unit 122, thereby recognizing the change in the display content. Thereafter, the change information analysis unit 123 detects a highlight object based on the change in the display content. A specific method of detecting the highlight object by the change information analysis unit 123 will be described in detail later (see FIGS. 4 and 5).

  The highlight object is a display object that is a target of an operation by the user (for example, the focus is changed) among the display objects displayed on the display screen of the display 141.

  The key event conversion unit 124 is a processing unit that converts the operation input received by the pointing device 142 into a format that can be processed by the key event input unit 125. For example, the key event conversion unit 124 corresponds to an operation input that directly or indirectly designates coordinates on the display screen received by the pointing device 142 to a direction key or a determination key that can be processed by the key event input unit 125. It may be converted into an operation input.

  The key event input unit 125 is actually displayed on the display 141 under the control of the content reproduction processing unit 122 or virtually displayed in the content reproduction processing unit 122 with respect to the content reproduction processing unit 122. An operation input (that is, a key event) that can be received in the data broadcasting content that is received is input.

  The database 126 stores information that identifies the highlight object detected by the change information analysis unit 123. Examples of information that identifies the highlight object include the display position (in other words, coordinates) of the highlight object on the display screen of the display 141, the size of the highlight object on the display screen of the display 141, and the highlight object. Examples include various processes (that is, event handlers) associated with, and a transition destination (that is, a focus transition destination) starting from a highlight object.

(2) Display Example of Data Broadcast Content Next, a display example of the data broadcast content on the display 141 will be described with reference to FIG. FIG. 3 is a plan view showing a display example of the data broadcast content on the display 141.

  As shown in FIG. 3, the data broadcast content displayed on the display 141 includes, for example, a television video object 210 that is a display object corresponding to normal television broadcast content, and a button (# 1) that can be operated by the user. Button object (# 1) 221 which is a display object corresponding to the above, a button object (# 2) 222 which is a display object corresponding to the button (# 2) which can be operated by the user, and a button which can be operated by the user A button object (# 3) 223 which is a display object corresponding to (# 3), and a button object (# 4) 224 which is a display object corresponding to a button (# 4) which can be operated by the user. .

  In the data broadcast content shown in FIG. 3, the user is currently present in any one of the button object (# 1) 221, the button object (# 2) 222, the button object (# 3) 223, and the button object (# 4) 224. A focus (see the shaded area in FIG. 3) indicating that attention is focused is located. FIG. 3 shows an example in which the focus is on the button object (# 1) 221 as an initial state. Accordingly, each of the button object (# 1) 221, the button object (# 2) 222, the button object (# 3) 223, and the button object (# 4) 224 is a highlight object to be operated by the user. On the other hand, the television video object 210 is not a highlight object because the focus does not change.

  When the data broadcast content is displayed for the first time, the focus is on the button object (# 1) 221. When an operation input designating the up direction, the down direction, or the left direction is input in a state where the focus is on the button object (# 1) 221, for example, the up key and the down key of the direction keys of the remote control (If the left key is pressed), focus transition does not occur. On the other hand, when an operation input designating the right direction is input in a state where the focus is on the button object (# 1) 221, for example, when the right key of the direction keys of the remote control is pressed. As shown by an arrow in FIG. 3, the focus changes from the button object (# 1) 221 to the button object (# 2) 222. It should be noted that when an operation input for designating the button object (# 1) 221 is made in a state where the focus is on the button object (# 1) 221, for example, when the determination key of the remote control is pressed. Some content corresponding to the button object (# 1) 221 may be displayed on at least a part or the whole of the display screen of the display 141.

  In the state where the focus is on the button object (# 2) 222, when an operation input designating an upward direction or a downward direction is input, no focus transition occurs. On the other hand, when an operation input for designating the right direction is input in a state where the focus is on the button object (# 2) 222, as shown by an arrow in FIG. 2) Transition from 222 to the button object (# 3) 223. Similarly, when an operation input for designating the left direction is input in a state where the focus is on the button object (# 2) 222, as shown by an arrow in FIG. # 2) Transition from 222 to the button object (# 1) 221. It should be noted that when an operation input specifying the button object (# 2) 222 is made in a state where the focus is on the button object (# 2) 222 (for example, when a determination key on the remote control is pressed). Some content corresponding to the button object (# 2) 222 may be displayed on at least a part or the whole of the display screen of the display 141.

  In the state where the focus is on the button object (# 3) 223, when an operation input designating the upward direction or the downward direction is input, the focus transition does not occur. On the other hand, when an operation input for designating the right direction is input in a state where the focus is on the button object (# 3) 223, as shown by an arrow in FIG. 3) Transition from 223 to the button object (# 4) 224. Similarly, when an operation input for designating the left direction is input in a state where the focus is on the button object (# 3) 223, as shown by an arrow in FIG. # 3) Transition from 223 to the button object (# 2) 222. It should be noted that when an operation input designating the button object (# 3) 223 is made in a state where the focus is on the button object (# 3) 223 (for example, when a determination key on the remote control is pressed). Some content corresponding to the button object (# 3) 223 may be displayed on at least a part or the whole of the display screen of the display 141.

  In the state where the focus is on the button object (# 4) 224, when an operation input designating the upward direction, the downward direction, or the right direction is input, no focus transition occurs. On the other hand, when an operation input for designating the left direction is input in a state where the focus is on the button object (# 4) 224, as shown by an arrow in FIG. 4) Transition from 224 to the button object (# 3) 223. Note that, when an operation input for designating the button object (# 4) 224 is made in a state where the focus is on the button object (# 4) 224 (for example, when a determination key of the remote controller is pressed). Some content corresponding to the button object (# 4) 224 may be displayed on at least a part or the whole of the display screen of the display 141.

  The data broadcast content shown in FIG. 3 is often described as a BML script. The BML script is a data format that takes into account only operation inputs with a remote controller that mainly includes direction keys, enter keys, and the like. The data broadcast receiving apparatus 100 according to the present embodiment detects a highlight object in order to enable operation input using the pointing device 142 for such data broadcast content. Hereinafter, the operation of the data broadcast receiving apparatus 100 according to the present embodiment will be described.

  Note that the data broadcast content shown in FIG. 3 is merely an example, and data broadcast content displayed in other modes may be used. However, in the following description, for the sake of convenience of explanation, the operation of the data broadcast receiving apparatus 100 detecting the highlight object will be described using the data broadcast content shown in FIG.

(3) Operation of Data Broadcast Receiving Device Next, the operation of the data broadcast receiving device 100 will be described with reference to FIGS.

(4-1) Highlight Object Detection Operation First, the highlight object detection operation among the operations performed by the data broadcast receiving apparatus 100 will be described with reference to FIG. FIG. 4 is a flowchart showing the flow of the highlight object detection operation among the operations performed by the data broadcast receiving apparatus 100.

  As shown in FIG. 4, the content reproduction processing unit 122 controls the operation of the display 141 so that the data broadcast content output from the content acquisition unit 121 is displayed on the display 141. As a result, the data broadcast content is displayed on the display 141 (step S101).

  Note that while the highlight object detection operation is being performed, the data broadcast content may actually be displayed on the display 141 under the control of the content reproduction processing unit 122. Alternatively, the data broadcast content may be displayed virtually (in other words, in a pseudo manner) in the content reproduction processing unit 122 while the highlight object detection operation is being performed. That is, while the highlight object detection operation is being performed, the data broadcast content may not actually be displayed on the display 141. In any case, as long as the content reproduction processing unit 122 can actually (for example, directly or indirectly) or virtually recognize the display content of the data broadcast content on the display 141, the data broadcast content The display mode of is arbitrary.

  Thereafter, the change information analysis unit 123 operates the key event input unit 125 so as to input an operation input (that is, a key event) for the data broadcast content displayed in step S101 to the content reproduction processing unit 122. Control. Specifically, the change information analysis unit 123, for example, performs an operation input that designates a direction using a direction key provided in the remote control (for example, an up key, a down key, a right key, or a left key among the direction keys of the remote control). It is preferable to control the operation of the key event input unit 125 so as to input an operation input to be pressed, that is, an operation input specifying an upward direction, a downward direction, a right direction, or a left direction. However, the change information analysis unit 123 may control the operation of the key event input unit 125 so as to input other operation inputs. As a result, the key event input unit 125 inputs a key event to the content reproduction processing unit 122 under the control of the change information analysis unit 123 (step S102).

  Using the input of the key event as a trigger, the content reproduction processing unit 122 executes an event handler corresponding to the key event (in other words, operation input) input from the key event input unit 125. As a result, the display content of the data broadcast content on the display 141 may change due to the execution of the event handler. Specifically, for example, in the case of data broadcast content in the form shown in FIG.

  Note that the event handler corresponding to the key event may actually be executed in the content reproduction processing unit 122 while the highlight object detection operation is being performed. Alternatively, the event handler corresponding to the key event may be executed virtually (in other words, in a pseudo manner) within the content reproduction processing unit 122. In any case, as long as the content reproduction processing unit 122 can recognize the change in the display content of the data broadcast content on the display 141 due to the execution of the event handler, the execution mode of the event handler is arbitrary. .

  Thereafter, the content reproduction processing unit 122 detects a change in the display content of the data broadcast content due to the execution of the event handler. For example, the content reproduction processing unit 122 is caused by the execution of an event handler by analyzing a change in an element in a document (for example, a BML element such as a p element or an object element) in a BML script that defines data broadcasting content. A change in the display content of the data broadcast content may be detected. Alternatively, for example, the content reproduction processing unit 122 performs direct, indirect, virtual or pseudo image analysis processing on the display content of the data broadcast content, resulting in execution of the event handler. A change in the display content of the data broadcast content may be detected. Or the content reproduction process part 122 may detect the change of the display content of the data broadcast content resulting from execution of an event handler using the other well-known method. The content reproduction processing unit 122 outputs the detected change in display content to the change information analysis unit 123 as display change information. As a result, the change information analysis unit 123 acquires display change information (step S103).

  Here, the display change information may include, for example, information indicating the coordinates of the display area where the display content has changed. Specifically, for example, the display change information will be described using the data broadcast content shown in FIG. 3 as an example. When an operation input designating the right direction is input in a state where the focus is on the button object (# 1) 221, the focus is changed from the button object (# 1) 221 to the button object (# 2) 222. And transition. That is, the execution of the event handler corresponding to the operation input designating the right direction changes the display state of the button object (# 1) 221 from the display state with focus to the display state without focus. Similarly, the execution of the event handler corresponding to the operation input designating the right direction changes the display state of the button object (# 2) 222 from the display state without focus to the display state with focus. For this reason, the display change information acquired in this state includes a display area that has changed from a display state with focus to a display state without focus (that is, a display area corresponding to the button object (# 1) 221) and a display area without focus. Information indicating each coordinate or the like of the display area changed from the display state to the display state with the focus (that is, the display area corresponding to the button object (# 2) 222) may be included. The same applies when event handlers corresponding to other operation inputs are executed.

  Thereafter, the change information analysis unit 123 determines whether or not the highlight object in the previous display state (that is, the state of the display content of the data broadcast content before the key event input in step S102) has already been detected. Is determined (step S104). That is, the change information analysis unit 123 determines whether or not at least one highlight object that has already been detected exists in the data broadcast content in the previous display state.

  As a result of the determination in step S104, the highlight object in the previous display state has already been detected (that is, at least one highlight object that has already been detected exists in the data broadcast content in the previous display state. (Step S104: Yes), the change information analysis unit 123 inputs the highlight object that has already been detected in the previous display state and the current display state (that is, the key event input in Step S102). The highlight object in the current display state is detected based on the relationship with the display change information acquired when the transition to the display state of the data broadcast content after having been performed (step S109). . Specifically, the change information analysis unit 123 calculates the difference between the already detected highlight object in the previous display state and the display change information acquired when the display state is changed to the current display state. Detect as highlight object in. More specifically, the change information analysis unit 123 includes a display area corresponding to a highlight object that has already been detected in the previous display state, a display area indicated by the display change information acquired when transitioning to the current display state, The display area corresponding to the difference (in other words, the display object existing in the display area) is detected as the highlight object in the current display state. In other words, the change information analysis unit 123 removes a display area corresponding to a highlight object that has already been detected in the previous display state from the display area indicated by the display change information acquired when transitioning to the current display state. The display area obtained in (in other words, the display object existing in the display area) is detected as the highlight object in the current display state.

  On the other hand, as a result of the determination in step S104, the highlight object in the previous display state has not been detected (that is, there is no highlight object already detected in the data broadcast content in the previous display state). (Step S104: No), the change information analysis unit 123 determines whether or not the display change information acquired when transitioning to the previous display state has been acquired (step S106). . That is, the change information analysis unit 123 has acquired display change information indicating a change in the display content of the data broadcast content caused by the execution of the event handler that triggered the transition to the previous display state. Determine whether.

  As a result of the determination in step S106, when it is determined that the display change information acquired when transitioning to the previous display state has not been acquired (step S106: No), the data broadcast receiving device 100 operates in step S102. Again. That is, the change information analysis unit 123 controls the operation of the key event input unit 125 so that a new operation input (that is, a key event) is input to the content reproduction processing unit 122.

  On the other hand, as a result of the determination in step S106, when it is determined that the display change information acquired when transitioning to the previous display state has been acquired (step S106: Yes), the change information analysis unit 123 The highlight object in the previous display state is detected based on the relationship between the display change information acquired when transitioning to the previous display state and the display change information acquired when transitioning to the current display state. (Step S107). Specifically, the change information analysis unit 123 determines the overlap area between the display change information acquired when the display state is changed to the previous display state and the display change information acquired when the display state is changed to the current display state. It is detected as a highlight object in the display state. More specifically, the change information analysis unit 123 displays the display area indicated by the display change information acquired when the display state transitions to the previous display state and the display area indicated by the display change information acquired when the display state changes to the current display state. And a display area that is included in both of them (in other words, a display object existing in the display area) is detected as a highlight object in the previous display state.

  Thereafter, the change information analysis unit 123 executes the previous time based on the relationship between the highlight object in the previous display state detected in step S107 and the display change information acquired when the display state transitions to the previous display state. The highlight object in the display state is detected (step S108). Specifically, the change information analysis unit 123 calculates the difference between the highlight object in the previous display state detected in step S107 and the display change information acquired when transitioning to the previous display state. It is detected as a highlight object in the display state. More specifically, the change information analysis unit 123 displays the display area corresponding to the highlight object in the previous display state detected in step S107 and the display change information acquired when the display state transitions to the previous display state. A display area corresponding to a difference from the area (in other words, a display object existing in the display area) is detected as a highlight object in the previous display state. In other words, the change information analysis unit 123 selects a display area corresponding to the highlight object in the previous display state detected in step S107 from the display area indicated by the display change information acquired when the display state transitions to the previous display state. The display area obtained by removing (in other words, the display object existing in the display area) is detected as the highlight object in the previous display state.

  After that, the change information analysis unit 123 determines the highlight object in the previous display state detected in step S107 as in the case where it is determined in step S104 that the highlight object in the previous display state has already been detected. The highlight object in the current display state is detected based on the relationship with the display change information acquired when the current display state is acquired in step S103 (step S109). Specifically, the change information analysis unit 123 calculates the difference between the highlight object in the previous display state detected in step S107 and the display change information acquired when transitioning to the current display state. It is detected as a highlight object in the display state. More specifically, the change information analysis unit 123 displays the display area corresponding to the highlight object in the previous display state detected in step S107 and the display change information acquired when the display state transitions to the current display state. A display area corresponding to a difference from the area (in other words, a display object existing in the display area) is detected as a highlight object in the current display state. In other words, the change information analysis unit 123 selects a display area corresponding to the highlight object in the previous display state detected in step S107 from the display area indicated by the display change information acquired when the display state is changed to the current display state. The display area obtained by removing (in other words, the display object existing in the display area) is detected as the highlight object in the current display state.

  Thereafter, the change information analysis unit 123 registers the highlight object detected in at least one of steps S107, S108, and S109 in the database 126 (step S110).

  Thereafter, the data broadcast receiving apparatus 100 repeats the operations from step S102 to step S110 until all highlight paths are inspected (step S111). That is, the data broadcast receiving apparatus 100 repeats the operations from step S102 to step S110 until all the display states of the data broadcast content displayed in step S101 are realized. In other words, the data broadcast receiving apparatus 100 repeats the operations from step S102 to step S110 until all event handlers for the data broadcast content displayed in step S101 are executed.

  Here, with reference to FIG. 5 and FIG. 6, the operation of detecting a highlight object for specific data broadcasting contents will be described. FIG. 5 is a plan view showing the flow of the highlight object detection operation for specific data broadcasting contents. FIG. 6 is a data structure diagram showing a data structure of the database 126 generated by the highlight object detection operation for the specific data broadcasting content shown in FIG. The specific data broadcast content shown in FIG. 5 is the same as the data broadcast content shown in FIG.

  As shown in the uppermost row of FIG. 5, the initial display state of the data broadcast content whose focus is on the button object (# 1) 221 is defined as a display state S0. In this case, in step S102 of FIG. 4, for example, it is assumed that an operation input (key event) for specifying the right direction is input. As a result, the focus changes from the button object (# 1) 221 to the button object (# 2) 222. That is, the display state of the data broadcast content transitions from the display state S0 shown in the uppermost stage in FIG. 5 to the display state S1 shown in the second stage in FIG. The display change information E (S0 → S1) acquired by transitioning to the display state S1 corresponds to the display region (that is, the button object (# 1) 221) that has changed from the display state with focus to the display state without focus. Information indicating the coordinates and the like of the display area changed from the display state without focus and the display state with focus (that is, the display area corresponding to the button object (# 2) 222).

  When the display state of the data broadcasting content is the display state S1, the display change acquired when the highlight object in the previous display state S0 has not already been detected and transitions to the previous display state (display state S0). It is determined that the information has not been acquired (step S104: No in FIG. 4 and step S106: No in FIG. 4).

  Therefore, the data broadcast receiving apparatus 100 performs the operation of step S102 again. In this case, in step S102 of FIG. 4, for example, it is assumed that an operation input (key event) for specifying the right direction is input. As a result, the focus changes from the button object (# 2) 222 to the button object (# 3) 223. That is, the display state of the data broadcast content transitions from the display state S1 shown in the second row in FIG. 5 to the display state S2 shown in the third row in FIG. The display change information E (S1 → S2) acquired by transition to the display state S2 corresponds to the display area (that is, the button object (# 2) 222) that has changed from the display state with focus to the display state without focus. Information indicating the coordinates and the like of the display area that has changed from the display state without focus and the display state with focus (that is, the display area corresponding to the button object (# 3) 223).

  When the display state of the data broadcasting content is the display state S2, it is determined that the highlight object in the previous display state S1 has not already been detected, while the display acquired when the display state transitions to the previous display state S1. It is determined that the change information E (S0 → S1) has been acquired (step S104: No in FIG. 4 and step S106: Yes in FIG. 4).

  Therefore, the data broadcast receiving apparatus 100 displays the display area indicated by the display change information E (S0 → S1) acquired when the display state is changed to the previous display state S1 and the display change information acquired when the display state is changed to the current display state S2. A display area that overlaps with the display area indicated by E (S1 → S2) is detected as a highlight object in the previous display state S1 (step S107 in FIG. 4). Here, the display area indicated by the display change information E (S0 → S1) acquired when the display state transitions to the previous display state S1 includes a display area corresponding to the button object (# 1) 221 and the button object (# 2). A display area corresponding to 222 is included. On the other hand, in the display area indicated by the display change information E (S1 → S2) acquired when the display state is changed to the current display state S2, the display area corresponding to the button object (# 2) 222 and the button object (# 3) are displayed. A display area corresponding to H.223 is included. Therefore, the data broadcast receiving apparatus 100 detects the display area corresponding to the button object (# 2) 222 as the highlight object in the previous display state S1. That is, the data broadcast receiving apparatus 100 detects the button object (# 2) 222 as a highlight object in the previous display state S1.

  Thereafter, the data broadcast receiving apparatus 100 displays the difference between the highlight object in the previous display state S1 and the display change information E (S0 → S1) acquired when the display state transitions to the previous display state S1 the previous time. It is detected as a highlight object in the state S0 (step S108 in FIG. 4). Here, the highlight object in the previous display state S 1 is a display area corresponding to the button object (# 2) 222. The display area indicated by the display change information E (S0 → S1) acquired when the display state transitions to the previous display state S1 includes a display area corresponding to the button object (# 1) 221 and the button object (# 2) 222. Is included in the display area. Therefore, the data broadcast receiving apparatus 100 detects the display area corresponding to the button object (# 1) 221 as a highlight object in the previous display state S0. That is, the data broadcast receiving apparatus 100 detects the button object (# 1) 221 as a highlight object in the previous display state S0.

  Thereafter, the data broadcast receiving apparatus 100 displays the difference between the highlight object in the previous display state S1 and the display change information E (S1 → S2) acquired when the current display state S2 is changed to the current display state. It is detected as a highlight object in the state S2 (step S109 in FIG. 4). Here, the highlight object in the previous display state S 1 is a display area corresponding to the button object (# 2) 222. Further, in the display area indicated by the display change information E (S1 → S2) acquired when the current display state S2 is changed, the display area corresponding to the button object (# 2) 222 and the button object (# 3) 223 are displayed. Is included in the display area. Therefore, the data broadcast receiving apparatus 100 detects the display area corresponding to the button object (# 3) 223 as the highlight object in the current display state S2. That is, the data broadcast receiving apparatus 100 detects the button object (# 3) 223 as a highlight object in the current display state display state S2.

  Thereafter, at this stage, not all the highlight paths have been inspected (specifically, the highlight path in which the focus changes from the button object (# 3) 223 to the button object (# 4) 224 has not been inspected). For this reason, the data broadcast receiving apparatus 100 performs the operation of step S102 again. In this case, for example, in step S102 of FIG. 4, it is assumed that an operation input (key event) for designating the right direction is input. As a result, the focus changes from the button object (# 3) 223 to the button object (# 4) 224. That is, the display state of the data broadcast content transitions from the display state S2 shown in the third row in FIG. 5 to the display state S3 shown in the fourth row in FIG. The display change information E (S2 → S3) acquired by transition to the display state S3 corresponds to the display area (that is, the button object (# 3) 223) that has changed from the display state with focus to the display state without focus. Information indicating the coordinates and the like of the display area changed from the display state without focus and the display state with focus (that is, the display area corresponding to the button object (# 4) 224).

  When the display state of the data broadcast content is the display state S3, it is determined that the highlight object (that is, the display area corresponding to the button object (# 3) 223) in the previous display state S2 has already been detected. (Step S104 in FIG. 4: Yes).

  Therefore, the data broadcast receiving apparatus 100 displays the difference between the highlight object in the previous display state S2 and the display change information E (S2 → S3) acquired when the display state transitions to the current display state S3. It is detected as a highlight object in the state S3 (step S109 in FIG. 4). Here, the highlight object in the previous display state S <b> 2 is a display area corresponding to the button object (# 3) 223. In addition, in the display area indicated by the display change information E (S2 → S3) acquired when the current display state S3 is changed, the display area corresponding to the button object (# 3) 223 and the button object (# 4) 224 are displayed. Is included in the display area. Therefore, the data broadcast receiving apparatus 100 detects the display area corresponding to the button object (# 4) 224 as the highlight object in the current display state S3. That is, the data broadcast receiving apparatus 100 detects the button object (# 4) 224 as a highlight object in the current display state S3.

  As a result, as shown in FIG. 6, the database 126 includes a button object (# 1) 221, a button object (# 2) 222, a button object (# 3) 223, and a button object (# 4) 224. Are registered as highlight objects. Note that FIG. 6 shows information relating to the button objects, such as information relating to the coordinates and sizes of the button objects (for example, combinations of upper left coordinates and lower right coordinates of the button objects), and highlight paths starting from the button objects. Information indicating (for example, a transition destination when an operation for designating a direction is performed) is registered.

  As described above, the data broadcast receiving apparatus 100 according to the present embodiment can suitably detect the highlight object by analyzing the change in the display content of the data broadcast content caused by the input of the key event.

  In the above description, the data broadcast receiving apparatus 100 actually or virtually executes the event handler corresponding to the input key event for the data broadcast content that is actually or virtually displayed. Thus, the change in the display content of the data broadcast content is analyzed. However, the data broadcast receiving apparatus 100 instead of actually or virtually executing the event handler corresponding to the input key event on the data broadcast content that is actually or virtually displayed ( Alternatively, instead of actually or virtually displaying the data broadcast content, a change in display content of the data broadcast content may be analyzed by analyzing a BML script describing the data broadcast content. Specifically, the data broadcast receiving device 100 displays the data broadcast content by analyzing the BML script while paying attention to the BML element (for example, the div element, the object element, and the p element) in the BML data. Changes in content may be analyzed.

  In the above description, the data broadcast receiving device 100 (i) displays change information acquired when transitioning to the current display state and the display area indicated by the display change information acquired when transitioning to the previous display state. (Ii) a display area corresponding to a highlight object that has already been detected, and a display area indicated by display change information acquired when transitioning to the current display state Both of the display areas corresponding to the difference between and are detected as highlight objects. However, the data broadcast receiving apparatus 100 includes both the display area indicated by the display change information acquired when the display state is changed to the previous display state and the display area indicated by the display change information acquired when the display state is changed to the current display state. While the overlapping display area is detected as a highlight object, the display area corresponding to the already detected highlight object and the display area indicated by the display change information acquired when transitioning to the current display state The display area corresponding to the difference need not be detected as the highlight object. In other words, the data broadcast receiving apparatus 100 does not need to perform the operations from step S104 to step S108 in FIG. 4 while performing the operation in step S109 in FIG. Alternatively, the data broadcast receiving apparatus 100 includes both the display area indicated by the display change information acquired when the display state is changed to the previous display state and the display area indicated by the display change information acquired when the display state is changed to the current display state. While the overlapping display area is not detected as a highlight object, the display area corresponding to the already detected highlight object and the display area indicated by the display change information acquired when transitioning to the current display state A display area corresponding to the difference may be detected as a highlight object. In other words, the data broadcast receiving apparatus 100 may perform the operations from step S106 to step S108 in FIG. 4 while not performing the operations in steps S104 and S109 in FIG. In any case, the data broadcast receiving apparatus 100 can detect the highlight object accordingly. However, from the viewpoint of improving the detection accuracy of the highlight object, the data broadcast receiving device 100 (i) displays the display area indicated by the display change information acquired when the display state is changed to the previous display state and the current display state. When the display area that overlaps with both the display area indicated by the display change information acquired when transitioning to (ii) the display area corresponding to the already detected highlight object and the current display state It is preferable to detect both the display area corresponding to the difference from the display area indicated by the acquired display change information as the highlight object. In other words, the data broadcast receiving apparatus 100 preferably performs the operations from step S104 to step S109 in FIG.

(4-2) Operation Accepting Operation Using Pointing Device Next, the operation input accepting operation using the pointing device 142 among the operations performed by the data broadcast receiving apparatus 100 will be described with reference to FIG. FIG. 7 is a flowchart showing a flow of an operation input receiving operation using the pointing device 142 among the operations performed by the data broadcast receiving apparatus 100.

  As shown in FIG. 7, the input / output unit 140 determines whether or not the pointing device 142 is operated by the user (step S201).

  As a result of the determination in step S201, when it is determined that the pointing device 142 is not operated by the user (step S201: No), the input / output unit 140 determines whether or not the pointing device 142 is operated by the user. Continue judging.

  On the other hand, as a result of the determination in step S201, when it is determined that the pointing device 142 is operated by the user (step S201: Yes), the input / output unit 140 acquires the operation input accepted by the pointing device 142. In addition, the acquired operation input is output to the key event conversion unit 124.

  After that, the key event conversion unit 124 detects the coordinate position operated by the pointing device 142 (hereinafter, referred to as “operation coordinate position” as appropriate) based on the operation input received by the pointing device 142 (step S202). The operation coordinate position is a coordinate position on the display screen of the display 141.

  In addition, the key event conversion unit 124 acquires the coordinate position of the highlight object (hereinafter referred to as “highlight coordinate position” as appropriate) from the database 126 (step S203).

  After that, the key event conversion unit 124 determines whether or not the operation coordinate position detected in step S202 matches the highlight coordinate position acquired in step S203 (step S204). In other words, the key event conversion unit 124 determines whether or not the operation coordinate position detected in step S202 is included in the highlight coordinate position acquired in step S203 (step S204).

  As a result of the determination in step S204, when it is determined that the operation coordinate position matches the highlight coordinate position (that is, the operation coordinate position is included in the highlight coordinate position) (step S204: Yes), the user's The operation input is assumed to be an operation input for designating (in other words, selecting) a highlight object. Therefore, in this case, the key event conversion unit 124 converts the operation input received by the pointing device 142 into a format that can be processed by the key event input unit 125. For example, the key event conversion unit 124 directs the operation input received by the pointing device 142 to an operation input that designates a highlight object (for example, by pressing a required direction key a required number of times to a specified highlight object. Operation input to change focus). Thereafter, the key event input unit 125 inputs the operation input (that is, the key event) converted by the key event conversion unit 124 to the content reproduction processing unit 122. Thereafter, the content reproduction processing unit 122 executes an event handler corresponding to the key event input from the key event input unit 125. As a result, a process related to the specified highlight object (for example, a process of shifting the focus to the specified highlight object, a specified highlight object, or the like according to the user's operation input specifying the highlight object) Etc.) is executed (step S205).

  On the other hand, as a result of the determination in step S204, when it is determined that the operation coordinate position does not match the highlight coordinate position (that is, the operation coordinate position is not included in the highlight coordinate position) (step S204: No), It is presumed that the user operation input is not an operation input for designating (in other words, selecting) a highlight object. Therefore, in this case, the data broadcast receiving apparatus 100 ends the operation.

  As described above, the data broadcast receiving apparatus 100 according to the present embodiment mainly uses a pointing device for data broadcast contents described in a data format in which only an operation input with a remote controller including a direction key, a determination key, and the like is considered. Processing according to the user's operation input using 142 can be executed.

  The present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit or concept of the invention that can be read from the claims and the entire specification. A method and a computer program are also included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 100 Data broadcast receiver 110 Receiving part 111 Antenna 120 CPU
121 Content Acquisition Unit 122 Content Playback Processing Unit 123 Change Information Analysis Unit 124 Key Event Conversion Unit 125 Key Event Input Unit 126 Database 130 Memory 140 Input / Output Unit 141 Display 142 Pointing Device 210 Television Video Object 221 Button Object (# 1)
222 Button object (# 2)
223 Button object (# 3)
224 Button object (# 4)

Claims (9)

Acquisition means for acquiring content including object information defining at least one display object and key event information defining at least one process corresponding to an operation input for the display object;
First detection means for detecting a change in display content of the display object caused by executing the processing defined by the key event information by analyzing the content;
Second detection means for detecting a highlight object to be operated by a user among the display objects based on a change in the display content;
The second detection means removes a display area corresponding to the already-detected highlight object from a display area where the display content changes due to the execution of the processing specified by the key event information. An information processing apparatus for detecting a display area of a part as a new highlight object.   The second detection means includes: (i) a display area in which the display content is changed by executing the process specified by one key event information; and (ii) the one key event information specified. Both of the display areas that are executed following the process and in which the display content is changed by executing the process defined by another key event information different from the one key event information. The information processing apparatus according to claim 1, further comprising detecting a display area that is included in duplicate as the highlight object.   When the highlight object in the state in which the processing specified by the one key event information has been executed has already been detected, the second detecting means determines the processing specified by the other key event information. Is obtained by removing the display area corresponding to the highlight object in a state in which the processing specified by the one key event information has been executed from the display area in which the display content has changed by executing The information processing apparatus according to claim 2, wherein the display area is detected as a new highlight object.   When the highlight object in the state in which the process specified by the one key event information has been executed has not yet been detected, the second detection means performs the process specified by the one key event information. Included in both the display area in which the display content has changed by execution and the display area in which the display content has changed by executing the processing specified by the other key event information The information processing apparatus according to claim 2, wherein a display area to be displayed is detected as the new highlight object.   The said 1st detection means analyzes the said content by analyzing at least one of the code | cord | chord which comprises the said object information, and the said key event information, The any one of Claim 1 to 4 characterized by the above-mentioned. The information processing apparatus according to one item.   The first detection means analyzes the display content of the display object that is actually or virtually displayed while actually or virtually executing the processing specified by the key event information, thereby obtaining the content. 6. The information processing apparatus according to claim 1, wherein the information processing apparatus analyzes the information processing apparatus. An acquisition step of acquiring content including object information that defines at least one display object and key event information that defines at least one process corresponding to an operation input for the display object;
A first detection step of detecting a change in display content of the display object caused by executing the processing defined by the key event information by analyzing the content;
A second detection step of detecting a highlight object to be operated by a user among the display objects based on the change in the display content,
In the second detection step, the display area corresponding to the already-detected highlight object is removed from the display area in which the display content changes due to the execution of the processing specified by the key event information. An information processing method for detecting a display area of a part as a new highlight object.   A program for causing a computer to function as the information processing apparatus according to any one of claims 1 to 6.   An information recording medium on which the computer program according to claim 8 is recorded.

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