JP2009020840A - Content display processor, content data providing device, content display system, data structure of content data, content display processing method, program, and computer readable recording medium recording program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display a second layer by superimposing it on a background of a first layer and to change how the second layer looks when a prescribed event occurs. <P>SOLUTION: A content display device is provided with: an event analysis part 14 for detecting a prescribed event, such as a user operation; an attribute information change part 12 for changing attribute information on the second layer into a prescribed value in accordance with the prescribed event; and a content data synthesis part 13 for superimposing the first layer and the second layer after its attribute information is changed to display them. Thus, since the attribute information on the second layer is set in accordance with the prescribed event, it is possible to change how the second layer looks. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a content display processing device that superimposes and displays content such as video and background images, a content data providing device that provides content to be displayed on the content display processing device, a content display system, and a data structure of content data The present invention relates to a content display processing method, a program, and a computer-readable recording medium on which the program is recorded.

  In recent years, content display processing devices that display content such as still images and moving images have become widespread. In particular, with the spread of Web services using the Internet or digital TV broadcasting, content display processing devices that acquire content from external servers via a network or broadcast and display the acquired content are used. It has become. As an example, there is a content display processing device that realizes VOD (Video On Demand) that acquires and displays a moving image from an external server in accordance with a user's selection.

  By the way, when using such a content display processing apparatus, there is a demand to browse related contents while referring to each other or to temporarily browse another content while browsing a certain content. . For example, there is a case where it is desired to select a broadcast to view while confirming both the TV program guide and the video actually broadcast.

  As a method generally used for browsing content, there is a method of displaying a list of contents on a menu screen and displaying selected content on a screen different from the menu screen. However, this method has a problem that the screen transition between the menu screen and the content display screen increases, and the convenience for the user is impaired.

  Therefore, in order to enable browsing of a plurality of contents without screen transition, a method of dividing a display screen into a plurality of areas and displaying the contents for each area is generally used. However, in this method, the content is reduced and displayed in accordance with the divided areas. Therefore, the content may be too small, and there is a problem that it is difficult for the user to browse the content.

  Therefore, a method is generally used in which a certain content is displayed in the background and another content is displayed on top of it so that a plurality of contents can be browsed simultaneously. According to this method, for example, the user can view the text displayed superimposed on the moving image while viewing the moving image. However, for example, if a moving image and text that are similar in color and brightness are simply superimposed and displayed, both the moving image and the text may be difficult to see. As a means for the user to eliminate such invisibility, it is conceivable to adjust the display device by adjusting the brightness and hue of the screen. However, the above adjustment cannot be easily performed with a remote controller or the like, and complicated operations are required. As a result, there is a problem that the convenience of the user who browses the content is impaired.

  Therefore, a method of displaying each content in an easy-to-see manner by changing the transmittance of each content when displaying a plurality of contents in an overlapping manner is disclosed.

  For example, in Patent Documents 1 and 2, a broadcast program image can be displayed at the same time as the electronic program guide by displaying a broadcast program image as a background and a semitransparent electronic program guide superimposed on the image. A method is disclosed.

  Patent Document 3 discloses a method for displaying an on-screen display (OSD) menu of a video display device in a translucent state.

  Patent Document 4 discloses a method of displaying a plurality of windows hierarchically and transparently displaying each window so that the display contents of each window can be confirmed even when the windows overlap each other. ing.

  Patent Document 5 describes visible information such as images and characters using a markup language such as HTML (Hyper Text Markup Language), and transparently displays a menu bar based on the visible information. Thus, a method for enabling browsing of images and characters located in the lower layer of the menu bar is disclosed.

  According to the methods disclosed in Patent Documents 1 to 5, by displaying the content in a translucent state, it is possible to make the content hidden in the lower layer of the content easy to see. And it can be displayed easily.

  However, these methods are display methods that use transparency processing unique to a display device or a WWW browser, and in order to make the content semi-transparent, an application having a transparency mechanism for adjusting the transparency is required. Therefore, when the transmittance adjustment method is changed or when the transmission method itself is changed, there is a problem that it is necessary to reconstruct the transmission mechanism of the application.

  In particular, in the method disclosed in Patent Document 5, information regarding transmittance is described as attribute information of each content, so that the content can be displayed in a translucent state by a WWW browser. However, in this method, information regarding the transmittance of the lower layer content needs to be described for each upper layer content. That is, the information regarding the transmittance of the lower layer content depends on the upper layer content, and the content provider cannot create the lower layer content and the upper layer content separately.

Therefore, in Patent Document 6 and Patent Document 7, by providing a semi-transparent layer between the contents to be superimposed, the content above the translucent layer stands out, and the content below the translucent layer stands out. By eliminating, a method of displaying a plurality of contents simultaneously in an easy-to-view manner is disclosed.
Japanese Patent No. 3685277 (Registration date: June 10, 2005) JP 2000-209520 A (publication date: July 28, 2000) JP 2000-284765 A (publication date: October 13, 2000) JP-A-9-62473 (Publication date: March 7, 1997) JP 2000-347645 A (publication date: December 15, 2000) JP 2002-77583 A (publication date: March 15, 2002) JP 2000-194476 A (publication date: July 14, 2000)

  According to the methods disclosed in Patent Documents 6 and 7, by providing a semi-transparent layer between the contents to be superimposed, it is possible to make the content below the translucent layer inconspicuous. Content can be displayed simultaneously and in an easy-to-read manner.

  However, since the methods disclosed in Patent Documents 6 and 7 use a semitransparent image prepared in advance, for example, the transmittance of the translucent layer is adjusted according to an event such as a user operation. I can't. In other words, depending on the situation, there is a problem that it is not possible to satisfy the user's request to make it easier to see the upper layer content or to make the lower layer content easier to see.

  The present invention has been made in view of the above-described problems, and its purpose is to display a second layer such as an image on the background of the first layer, and to perform a predetermined event (for example, for the first layer). A content display processing device capable of changing the visibility of the second layer when there is a predetermined operation from a user, a content data providing device for providing content to be displayed on the content display processing device, and content display An object is to provide a system, a data structure of content data, a control method of a content display processing device, a control program, and a computer-readable recording medium recording the program.

  In order to solve the above-described problem, a content display processing device according to the present invention displays content data including a first layer and a second layer in which display attribute information is set, on a display unit. An apparatus for superimposing the first layer and the second layer displayed on the basis of the display attribute information to display on the display unit, and an event for detecting a predetermined event Detecting means, and when the event detecting means detects the predetermined event, the content data display processing means is generated based on the first layer and the display attribute information after being changed to a predetermined value. The second layer is superimposed and displayed.

  The content display processing method according to the present invention is a content display processing method for displaying content data including a first layer and a second layer for which display attribute information is set on a display unit, An event detection step for detecting an event, a content data display processing step for displaying the first layer and the second layer displayed based on the display attribute information on the display unit in a superimposed manner, When the predetermined event is detected in the event detection step, in the content data display processing step, the first layer and the second layer generated based on the display attribute information after being changed to a predetermined value Are superimposed and displayed.

  According to the above configuration, when a predetermined event is detected, the display attribute information of the first region of the second layer is changed according to the detected predetermined event, and the first layer and the changed second Layers can be superimposed and displayed.

  Therefore, when a predetermined event is detected, for example, when the transmittance that is one of the display attribute information of the second layer is set to be high, the second layer can be easily seen. Also, when a predetermined event is detected, for example, when the transmittance, which is one of the display attribute information of the second layer, is set to be low, the second layer can be made difficult to see.

  Therefore, when the predetermined event occurs, there is an effect that it is possible to change the appearance of the content displayed on the second layer.

  Furthermore, in the above configuration, the content display processing device according to the present invention receives the content data after changing the display attribute information to the predetermined value from the content data providing device that provides the content data. The content data display processing unit may be configured to superimpose and display the first layer and the second layer included in the received content data.

  According to the above configuration, the content data whose display attribute information is changed is further received from the content data providing apparatus that provides the content data, and the content data included in the received content data according to the detected predetermined event is received. The first layer and the second layer can be superimposed and displayed.

  Therefore, for example, based on the content data received from an external device and having changed transmittance, which is one of the display attribute information of the second layer, it is possible to make the second layer easy to see or difficult to see. it can.

  Therefore, based on the content data received from an external device and the content displayed on the second layer is changed, the content displayed on the second layer is changed according to a predetermined event. There is an effect that can be done.

  Furthermore, the content display processing apparatus according to the present invention further comprises a content data requesting means for requesting the content data after the display attribute information is changed to the predetermined value with respect to the content data providing apparatus. It is good also as a structure provided.

  According to the above configuration, the content data can be acquired by requesting an external device that provides the content data to transmit the content data whose display attribute information is changed to a predetermined value.

  Therefore, for example, it is possible to request content data with changed transmittance, which is one of the display attribute information of the second layer, from the external device, and acquire and display the content data.

  Therefore, there is an effect that it is possible to request and acquire content data in which the appearance of the content displayed on the second layer is changed according to a predetermined event from an external device as necessary.

  Further, in the content display processing device according to the present invention, in the above configuration, when the content data requesting unit makes the request, the content display processing device receives the instruction information for instructing the change of the display attribute information to the predetermined value. It is good also as a structure which transmits to a provision apparatus.

  According to the above configuration, when the content data is requested to the content data providing apparatus that provides the content data, the instruction information for the content data providing apparatus to change the second layer display attribute information. Can be transmitted to the content data providing apparatus. The content data providing apparatus can change the display attribute information of the second layer to a predetermined value based on the instruction information.

  Therefore, when the changed content data is acquired from an external device, an instruction regarding the content data to be acquired can be given to the external device.

  Therefore, there is an effect that the content data changed based on the instruction can be acquired from the external device.

  Furthermore, the content display processing device according to the present invention further includes attribute information changing means for changing the display attribute information in the above configuration, and the content data is changed from the content data providing device that provides the content data to the predetermined value. Receiving the subsequent display attribute information, the content data display processing means is the first layer, and the second layer after the attribute information changing means is changed based on the received display attribute information; May be displayed in a superimposed manner.

  According to the above configuration, the display attribute information changed to a predetermined value is further received from the content data providing apparatus that provides the content data, and the first layer and the received information are received according to the detected predetermined event. The second layer changed based on the display attribute information can be superimposed and displayed.

  Therefore, for example, based on the display attribute information received from an external device and whose transmittance has been changed, it is possible to make the second layer easier to see or less visible.

  Therefore, based on the changed display attribute information received from the external device, it is possible to change the appearance of the content displayed on the second layer according to a predetermined event.

  Furthermore, the content display processing device according to the present invention is configured to include display attribute information requesting means for requesting the display attribute information after changing to the predetermined value from the content data providing device in the above configuration. Also good.

  According to the above configuration, the display attribute information can be acquired by requesting an external device that provides the content data to transmit the display attribute information after the change to the predetermined value.

  Therefore, for example, it is possible to obtain display attribute information whose transmission has been changed by requesting the external device.

  Therefore, the display attribute information for changing the appearance of the content displayed on the second layer according to a predetermined event can be requested and acquired from an external device as necessary.

  Furthermore, in the above configuration, the content display processing device according to the present invention is used by the content data providing device to change the display attribute information to the predetermined value when the display attribute information requesting unit makes the request. The instruction information may be transmitted to the content data providing apparatus.

  According to the above configuration, when the display attribute information is requested from the content data providing apparatus that provides the content data, the instruction for the content data providing apparatus to change the display attribute information of the second layer. Information can be transmitted to the content data providing apparatus. The content data providing apparatus can change the display attribute information of the second layer to a predetermined value based on the instruction information.

  Therefore, when the display attribute information is acquired from an external device, an instruction regarding the display attribute information desired to be acquired can be given to the external device.

  Therefore, the display attribute information changed based on the instruction can be obtained from an external device.

  Furthermore, the content display processing device according to the present invention has an attribute information setting means for setting a predetermined value held by the device in the display attribute information of the second layer included in the content data in the configuration described above. Further, the content data display processing means may be configured to display the first layer and the second layer after the setting in a superimposed manner.

  According to said structure, according to a predetermined event, the 1st layer and the 2nd layer changed based on the predetermined value hold | maintained at the own apparatus can be superimposed and displayed.

  Thus, for example, display attribute information received from an external device and having a preset transmittance can be changed to an appropriate predetermined value held in the own device.

  Therefore, for content data received from an external device, the appearance of the content displayed on the second layer is appropriately determined based on the display attribute information held by the own device without instructing the external device. There is an effect that it can be changed to.

  Furthermore, the content display processing device according to the present invention may be configured such that, in the above configuration, the event detection unit detects that the first predetermined signal is received from an external device as the predetermined event.

  According to the above configuration, when a predetermined signal such as a mail reception notification is received from an external device, a predetermined event can be generated in response to the reception.

  Therefore, when the predetermined event is detected, for example, when the transmittance which is one of the display attribute information of the second layer is set to be high, the second layer can be easily seen. Also, when a predetermined event is detected, for example, when the transmittance, which is one of the display attribute information of the second layer, is set to be low, the second layer can be made difficult to see.

  Therefore, by receiving a predetermined signal from an external device, it is possible to change the appearance of the content displayed on the second layer.

  Furthermore, the content display processing apparatus according to the present invention may be configured such that, in the above configuration, the event detection means detects that the user has performed a predetermined operation on the first layer as the predetermined event.

  According to the above configuration, when the user performs an operation such as clicking with the mouse on the first layer, a predetermined event can be generated according to the operation.

  Therefore, when the predetermined event is detected, for example, when the transmittance which is one of the display attribute information of the second layer is set to be high, the second layer can be easily seen. Also, when a predetermined event is detected, for example, when the transmittance, which is one of the display attribute information of the second layer, is set to be low, the second layer can be made difficult to see.

  Therefore, when the user performs an operation such as clicking with the mouse on the first layer, the appearance of the content displayed on the second layer can be changed.

  Furthermore, the content display processing device according to the present invention further comprises timer event generation means for generating a second predetermined signal every predetermined period based on the control information included in the content data in the above configuration, The detection unit may be configured to detect the second predetermined signal as the predetermined event.

  According to said structure, the said predetermined event can be produced | generated for every predetermined period based on the control information contained in content data.

  Therefore, when the predetermined event is detected, for example, when the transmittance which is one of the display attribute information of the second layer is set to be high, the second layer can be easily seen. Also, when a predetermined event is detected, for example, when the transmittance, which is one of the display attribute information of the second layer, is set to be low, the second layer can be made difficult to see.

  Therefore, it is possible to change the appearance of the content displayed on the second layer every predetermined period.

  Furthermore, the content data providing apparatus according to the present invention is characterized by transmitting content data to be displayed on the content display processing apparatus.

  According to the above configuration, the content data providing apparatus can transmit content data to the content display processing apparatus.

  Therefore, by transmitting the content data to the content display processing device, the content display processing device can acquire and display the content data.

  Therefore, the content display processing device can obtain and display content data that can change the appearance of content displayed on the second layer from the content data providing device.

  Further, the content data providing apparatus according to the present invention receives the instruction information transmitted from the content display processing apparatus, changes the display attribute information to the predetermined value based on the instruction information, and The content data including two layers may be transmitted to the content display processing device.

  According to said structure, the instruction information for changing display attribute information can be received. The display attribute information can be changed to a predetermined value based on the received instruction information. Then, content data in which the changed display attribute information is set can be generated.

  Therefore, the content data providing apparatus can generate content data in accordance with an instruction from the content display processing apparatus when generating the content data.

  Therefore, the content data that changes the appearance of the content displayed on the second layer can be generated and transmitted to the content display processing device in accordance with the instruction from the content display processing device.

  Further, the content data providing apparatus according to the present invention receives the instruction information transmitted from the content display processing apparatus, changes the display attribute information to the predetermined value based on the instruction information, and displays the display after the change. The attribute information may be transmitted to the content display processing device.

  According to said structure, the instruction information for changing display attribute information can be received. The display attribute information can be changed to a predetermined value based on the received instruction information.

  Therefore, the content data providing apparatus can change the display attribute information according to the instruction information.

  Therefore, the display attribute information for changing the appearance of the content displayed on the second layer can be transmitted to the content display processing device in accordance with the instruction from the content display processing device.

  Furthermore, a content display system according to the present invention includes the content display processing device and the content data providing device.

  According to the above configuration, the content data including the first layer and the second layer in which the display attribute information is set is transmitted from the content data providing apparatus, and the content display processing apparatus transmits the content data. The first layer and the second layer can be superimposed and displayed.

  When the content display processing apparatus detects a predetermined event, the display attribute information of the second layer is changed according to the detected predetermined event, and the first layer and the changed second layer are changed. It can be displayed superimposed.

  Therefore, the display attribute information of the second layer of the content data acquired by the content display processing device can be changed according to the predetermined event (for example, when the user performs an operation such as clicking with the mouse). it can.

  Therefore, the appearance of the content displayed on the second layer of the content data received from the content data providing apparatus can be changed by a predetermined event.

  Furthermore, the data structure of the content data according to the present invention includes a first layer and a second layer in which display attribute information is set, and when the content display processing device detects a predetermined event, the first layer And a data structure of content data to be displayed superimposed on the second layer after changing the display attribute information, and an area for storing attribute setting information specifying the display attribute information for each predetermined event It is characterized by including.

  According to said structure, the attribute setting information which designates display attribute information for every predetermined event can be stored.

  Therefore, by defining a script or the like that sets the display attribute information of the second layer to a predetermined value according to a predetermined event, the display attribute information of the second layer can be changed according to a predetermined event operation.

  Therefore, there is an effect that content data that changes the appearance of content displayed on the second layer can be configured by a predetermined event (for example, when a user performs an operation such as clicking with a mouse).

  The content display processing device and the content data providing device may be realized by a computer. In this case, the content display processing device and the content data providing device are made to operate on the computer by causing the computer to operate as the respective means. The control program for the content display processing device and the content data providing device to be realized in this way, and the computer-readable recording medium on which the control program is recorded also fall within the scope of the present invention.

  As described above, the content display processing device according to the present invention is a content display processing device that displays content data including a first layer and a second layer in which display attribute information is set on a display unit. Content data display processing means for superimposing the first layer and the second layer displayed based on the display attribute information to be displayed on the display unit; and event detection means for detecting a predetermined event; When the event detection means detects the predetermined event, the content data display processing means generates the second layer generated based on the first layer and the display attribute information after being changed to a predetermined value. Layers are displayed superimposed.

  The content display processing method according to the present invention is a content display processing method for displaying content data including a first layer and a second layer for which display attribute information is set on a display unit, An event detection step for detecting an event, a content data display processing step for displaying the first layer and the second layer displayed based on the display attribute information on the display unit in a superimposed manner, When the predetermined event is detected in the event detection step, in the content data display processing step, the first layer and the second layer generated based on the display attribute information after being changed to a predetermined value Are superimposed and displayed.

  Therefore, when a predetermined event is detected, for example, when the transmittance that is one of the display attribute information of the second layer is set to be high, the second layer can be easily seen. Also, when a predetermined event is detected, for example, when the transmittance, which is one of the display attribute information of the second layer, is set to be low, the second layer can be made difficult to see.

  Therefore, when the predetermined event occurs, there is an effect that it is possible to change the appearance of the content displayed on the second layer.

(Content display)
With reference to FIG. 2, content display data 100 displayed in the content display system according to each embodiment will be described. FIG. 2 is a schematic diagram showing a structure of content displayed by the content display system according to each embodiment. The display data 100 displayed by the content display system according to each embodiment is a layer (hereinafter, “adjustment layer”) capable of adjusting attribute information related to display such as transmittance, color, and region information (width, height, coordinates). And three or more layers including

  The layers constituting the display data 100 will be described with reference to FIG. FIG. 2A is a diagram illustrating an example in which the display data 100 is configured by superimposing three layers. The lower layer 101 (first layer) is a layer that displays content such as broadcasts, moving images, and still images as backgrounds. The upper layer 103 (second layer) is a layer that displays content such as menu images, characters, and OSD applications to be displayed over the background. Further, the upper layer 103 may have a user interface function for accepting a user operation (click with a mouse, selection with a remote controller, etc.).

  The adjustment layer 102 (second layer) provided between the lower layer 101 and the upper layer 103 is a layer in which attribute information relating to display such as transmittance, color, and region information can be adjusted. Is not displayed. For example, when adjusting the transmittance as the attribute information, if the transmittance of the adjustment layer 102 is adjusted to be high, the adjustment layer 102 is transparent. On the other hand, if the transmittance of the adjustment layer 102 is adjusted to be low, the adjustment layer 102 is not so transparent. Details of the data structure of the adjustment layer will be described later.

  The upper layer 103 and the lower layer 101 may also include display-related attribute information, and the attribute information may be adjustable.

  When displaying the content, the above three layers are superimposed and displayed. That is, the adjustment layer 102 is displayed behind the upper layer 103, and the lower layer 101 is displayed behind the adjustment layer 102.

  Then, it is assumed that the user sees the content displayed in an overlapping manner from the upper layer 103 side. In this state, by adjusting the attribute information of the adjustment layer 102, the content displayed on the lower layer 101 is made difficult to see or easy to see. For example, when adjusting the transmittance as the attribute information, if the transmittance of the adjustment layer 102 is adjusted to be low, the lower layer 101 behind it becomes difficult to see, and only the content displayed on the upper layer 103 becomes easy to see. On the other hand, if the transmittance of the adjustment layer 102 is adjusted to be high, the lower layer 101 behind it becomes easier to see, and the content displayed on the upper layer 103 becomes difficult to see. When only the lower layer 101 is visible, the control layer 102 and the upper layer 103 may both be controlled to be invisible.

  Here, when the three layers are superimposed and displayed, a generally used alpha blending method may be used. That is, the adjustment layer 102 has a value α (α is a value between 0 and 1) as the attribute information, and the RGB values of the coordinates (X, Y) of the upper layer 103 are (r1, g1, b1). When the RGB values of the coordinates (X, Y) of the lower layer 101 are (r2, g2, b2), the RGB values (r, g, b) of the coordinates (X, Y) after the superposition are What is necessary is just to calculate with the following formula.

r = r1 × (1−α) + r2 × α
g = g1 × (1−α) + g2 × α
b = b1 × (1−α) + b2 × α
The hierarchical structure of the display data 100 is not limited to the above configuration. For example, in the example of FIG. 2A, the display data 100 is composed of one each of the lower layer 101, the adjustment layer 102, and the upper layer 103, and each layer has the same size as the entire content. However, the present invention is not limited to this. That is, the size of each layer may not be the same, and there may be a plurality of the same layers. For example, as shown in FIG. 2B, a configuration in which the adjustment layer 102 having the same size as the upper layer 103 is disposed behind the upper layer 103 and the lower layer 101 is disposed behind the adjustment layer 102 may be employed.

  Further, for example, as shown in FIG. 2C, a plurality of adjustment layers 102 may exist. That is, a plurality of adjustment layers 102 having the same size as the upper layer 103 or larger than the upper layer 103 may be disposed behind the upper layer 103, and the lower layer 101 may be disposed behind the adjustment layer 102. For example, in the example shown in FIG. 2C, the adjustment layer 102b having the same size as the upper layer 103 is disposed behind the upper layer 103, and the adjustment layer 102a having a size larger than that of the upper layer 103 is disposed behind the upper layer 103. The lower layer 101 is arranged behind the rear side. According to the configuration of FIG. 2C, for example, by adjusting the transmittance of the adjustment layer 102a, it is possible to make the entire content displayed on the lower layer 101 less visible, while the transmittance of the adjustment layer 102b is reduced. By adjusting, the content displayed on the upper layer 103 corresponding to each can be easily seen individually.

[Embodiment 1]
An embodiment of the present invention will be described below with reference to FIGS.

(Overall configuration of content display system)
A content display system 500 according to the present embodiment will be described with reference to FIG. FIG. 3 is a block diagram showing a configuration of a content display system 500 including the content display device 1 (content display processing device) and the content data providing device 2 according to the present embodiment.

  As shown in FIG. 3, the content display device 1 and the content data providing device 2 are communicably connected.

  The content display device 1 is a client that receives content data 3 including at least one of content such as broadcast, moving image, still image, and text and attribute information related to display and control thereof from the content data providing device 2. . Then, the content display device 1 performs processing for displaying the content on the display screen based on the received content data 3. In addition, the content display device 1 may receive an input from a user by an input operation device such as the remote controller 6. The content display device 1 is, for example, a television, a mobile phone, a PC (Personal Computer), a PDA (personal digital assistant), an information display that displays various types of information.

  Next, the content data providing device 2 is a server device that receives and manages the content and attribute information constituting the content data 3 from the content providing device 7. Then, the content data providing device 2 generates content data 3 in response to the transmission request 4 from the content display device 1 and transmits the generated content data 3 to the content display device 1. The generated content data 3 may be composed of the content and its attribute information, or may be composed only of the attribute information of the already transmitted content.

  In addition, although the content data provision apparatus 2 has shown the example which receives the content and attribute information which comprise the said content data 3 from the content provision apparatus 7, it is not limited to this. That is, the content data providing apparatus 2 may acquire the content and attribute information by another method.

  The transmission of the content data 3 from the content data providing device 2 to the content display device 1 may use a broadcast wave or a communication network. The transmission of the transmission request 4 from the content display device 1 to the content data providing device 2 uses a communication network.

  The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite A communication network or the like is available. Further, the transmission medium constituting the communication network is not particularly limited, and for example, an infrared ray such as IrDA, Bluetooth (Bluetooth) (IEEE1394 cable, USB cable, power line carrier, cable TV line, telephone line, ADSL line, etc.) (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used.

  Next, the content data 3 is a data group constituting the content displayed on the content display device 1. That is, the content data 3 includes data constituting at least one of the upper layer, the adjustment layer, and the lower layer included in the display data 100. That is, the content data 3 includes upper layer attribute information 3a that is upper layer attribute information, adjustment layer attribute information 3b that is attribute information of the adjustment layer, lower layer attribute information 3c that is lower layer attribute information, and content displayed on the upper layer. At least one of the upper layer content 3d and the lower layer content 3e that is the content displayed in the lower layer is included.

  The upper layer attribute information 3a, the adjustment layer attribute information 3b, the lower layer attribute information 3c, the upper layer content 3d, and the lower layer content 3e may be included in the content data 3. Further, the upper layer attribute information 3a, the adjustment layer attribute information 3b, and the lower layer attribute information 3c may each be composed of one attribute information, or may be each composed of a plurality of attribute information. For example, the upper layer attribute information 3a and the lower layer attribute information 3c may be composed of three types of attribute information: display position, size, and color information. Further, for example, the adjustment layer attribute information 3b may be configured from three types of attribute information such as display position, size, and transmittance.

  Next, the transmission request 4 is transmitted when the transmission of the content data 3 managed by the content data providing apparatus 2 is requested. The transmission request 4 includes, for example, information that can identify the requested content data 3. When the content data providing device 2 changes the attribute information of the content data based on the unique information of the content display device 1, the user information, the value after the change of the attribute information, etc. Then, the instruction information 5 for instructing the change of the attribute information is transmitted. In this case, the content data providing apparatus 2 generates the content data 3 based on the instruction information 5. Details of the instruction information 5 and the generation processing of the content data 3 in the content data providing apparatus 2 will be described later.

  Note that the content data providing apparatus 2 may transmit new content data 3 to the content display apparatus 1 without receiving the transmission request 4.

(Configuration of content display device)
Next, the configuration of the content display device 1 will be described with reference to FIG. FIG. 1 is a block diagram illustrating a configuration of a content display device 1 according to the present embodiment. As shown in FIG. 1, the content display device 1 includes a control unit 10, a storage unit 20, a communication unit 30, a display unit 40, an event information receiving unit 50, an input operation unit 60, and an input / output control unit 70. The

  The control unit 10 controls the storage unit 20 and the input / output control unit 70 and performs predetermined arithmetic processing. As the predetermined calculation process, for example, there is a process of receiving the content data 3 from the content data providing apparatus 2. The detailed configuration of the control unit 10 will be described later.

  The storage unit 20 stores various data used by the control unit 10, data obtained by executing a program, and the like, and is realized by a non-volatile memory such as a ROM (Read-Only Memory) or a flash memory. The The various data is stored in various storage units inside the storage unit 20, that is, the content storage unit 21, the attribute information storage unit 22, and the instruction information storage unit 23.

  The content storage unit 21 stores the upper layer content 3d and the lower layer content 3e among the content data 3 received by the content display device 1.

  The attribute information storage unit 22 stores the upper layer attribute information 3a, the adjustment layer attribute information 3b, and the lower layer attribute information 3c among the content data 3 received by the content display device 1.

  The instruction information storage unit 23 stores information for generating instruction information 5 such as device information of the content display device 1 and user information of the content display device 1. These pieces of information are input in advance from the input operation unit 60 of the content display device 1 and stored in the instruction information storage unit 23. Details of the instruction information 5 will be described later.

  Note that the storage unit 20 is not necessarily provided in the content display device 1 and may be configured to be connected to the content display device 1 in an readable state as an external storage device.

  The communication unit 30 communicates with the content data providing apparatus 2 and an external server (not shown) via a communication network, and includes a reception unit 31 and a transmission unit 32 inside.

  The receiving unit 31 receives the content data 3 transmitted from the content data providing apparatus 2 and is controlled by the reception control unit 72. The content data 3 received by the receiving unit 31 is sent to the reception control unit 72. Further, the receiving unit 31 may receive a predetermined signal transmitted from the content data providing apparatus 2 or an external server (not shown), and the received predetermined signal is sent to the reception control unit 72. The receiving unit 31 may receive the predetermined signal and the content data 3 to be displayed according to the predetermined signal at the same timing. The reception of the predetermined signal is a kind of event described later.

  The reception control unit 72 controls the reception unit 31 and transmits the content data 3 received from the reception unit 31 to the content / attribute information analysis unit 11 described later. Further, the predetermined signal received from the receiving unit 31 is transmitted to the event analyzing unit 14 described later.

  The transmission unit 32 transmits the transmission request 4 to the content data providing apparatus 2 and is controlled by the transmission control unit 73.

  The transmission control unit 73 controls the transmission unit 32 to transmit the transmission request 4 received from the content / attribute information request unit 15 described later to the transmission unit 32.

  The display unit 40 displays information sent from the display control unit 71. The display unit 40 is configured by, for example, an LCD (Liquid Crystal Display). Information displayed on the display unit 40 includes content generated by the content data composition unit 13 described later. Note that the display unit 40 is not necessarily provided in the content display device 1 and may be configured to be communicably connected to the content display device 1 as an external device.

  The display control unit 71 controls the display unit 40 and transmits information instructed from the control unit 10 to the display unit 40.

  The event information receiving unit 50 receives an event signal generated by a change in the external environment (change in room brightness, user utterance, etc.). That is, a predetermined event signal is received from an external sensor or an image recognition device (not shown). Then, the received event signal is transmitted to the event analysis unit 14 via the event information reception control unit 74. Details of the adjustment of the transmittance according to the event type and the event value will be described later. The event information receiving unit 50 is not necessarily provided in the content display device 1 and may be configured to be communicably connected to the content display device 1 as an external device.

  The event information reception control unit 74 controls the event information reception unit 50 and transmits an input signal from the event information reception unit 50 to the event analysis unit 14 described later.

  The input operation unit 60 receives an input operation of the operator of the content display device 1 and transmits an input signal corresponding to the input operation to the input operation control unit 75. The input operation unit 60 is composed of input devices such as a remote controller, a mouse, a keyboard, a switch, and a touch panel, for example. When an operator performs an input operation from the input operation unit 60, an input signal corresponding to an input operation such as start of display of content, switching of content to be displayed, or operation of content is generated. Note that an input operation such as pressing various buttons on the remote controller or clicking a mouse by the operator from the input operation unit 60 is a kind of event.

  Note that the input operation unit 60 is not necessarily provided in the content display device 1 and may be configured to be communicably connected to the content display device 1 as an external device.

  The input operation control unit 75 controls the input operation unit 60 that receives the operation of the operator of the content display device 1 and transmits an input signal corresponding to the input operation of the operator to the event analysis unit 14 described later.

  Next, the control unit 10 will be described in detail. The control unit 10 includes a content / attribute information analysis unit 11, an attribute information change unit 12, a content data synthesis unit 13, an event analysis unit 14, a content / attribute information request unit 15, an instruction information generation unit 16, and a timer event generation unit 17. Is included.

  The content / attribute information analysis unit 11 analyzes the content data 3 received from the reception control unit 72 and acquires content and attribute information included in the content data 3. For this purpose, the content / attribute information analysis unit 11 includes an upper layer attribute information extraction unit 11a, an adjustment layer attribute information extraction unit 11b, a lower layer attribute information extraction unit 11c, and a content extraction unit 11d.

  The upper layer attribute information extraction unit 11a acquires the upper layer attribute information 3a to be displayed on the adjustment layer in the received content data 3. When there are a plurality of upper layers, the respective upper layer attribute information 3a is acquired. Then, the acquired upper layer attribute information 3 a is stored in the attribute information storage unit 22.

  The adjustment layer attribute information extraction unit 11b acquires the adjustment layer attribute information 3b of the adjustment layer in the received content data 3. When there are a plurality of adjustment layers, the adjustment layer attribute information 3b of each adjustment layer is acquired. Then, the acquired adjustment layer attribute information 3 b is stored in the attribute information storage unit 22.

  The lower layer attribute information extraction unit 11c acquires lower layer lower layer attribute information 3c to be displayed in a superimposed manner behind the adjustment layer in the received content data 3. When there are a plurality of lower layers, the respective lower layer attribute information 3c is acquired. Then, the acquired lower layer attribute information 3 c is stored in the attribute information storage unit 22.

  The content extraction unit 11d acquires the upper layer content 3d and the lower layer content 3e from the received content data 3. Then, the acquired content is stored in the content storage unit 21.

  When the extracted adjustment layer attribute information 3 b or lower layer attribute information 3 c includes predetermined event information, the content / attribute information analysis unit 11 transmits a predetermined signal to the event analysis unit 14.

  The attribute information changing unit 12 changes the upper layer attribute information 3a and the adjustment layer attribute information 3b in accordance with a change request transmitted from the event analysis unit 14 described later. Therefore, the attribute information change unit 12 includes an upper layer attribute information change unit 12a and an adjustment layer attribute information change unit 12b.

  The upper layer attribute information changing unit 12a is acquired by the upper layer attribute information extracting unit 11a according to a change request transmitted from the event analyzing unit 14 described later, or the upper layer attribute information 3a stored in the attribute information storage unit 22 after acquisition. To change. The changed attribute information is stored in the attribute information storage unit 22.

  The adjustment layer attribute information changing unit 12b is an adjustment layer stored in the attribute information storage unit 22 that has been acquired by the adjustment layer attribute information extraction unit 11b or has been acquired in accordance with a change request transmitted from the event analysis unit 14 described later. The attribute information 3b is changed. The changed attribute information is stored in the attribute information storage unit 22. In particular, when only the attribute information included in the adjustment layer attribute information 3b is received from the content data providing device 2, the adjustment layer attribute information extraction unit 11b has acquired the information or stores it in the attribute information storage unit 22 after acquisition. The adjustment layer attribute information 3b is changed by the adjustment layer attribute information change unit 12b based on the received attribute information extracted by the adjustment layer attribute information extraction unit 11b.

  The content data composition unit 13 generates a content in which the upper layer content, the adjustment layer, and the lower layer content are superimposed, and outputs the superimposed content to the display unit 40. That is, based on the lower layer content 3e acquired by the content extraction unit 11d or stored in the content storage unit 21 after acquisition and the lower layer attribute information 3c extracted by the lower layer attribute information extraction unit 11c, the display position and size Temporary generation of lower layer contents set with brightness and the like.

  Then, on the lower layer, an adjustment layer in which the display position, size, transmittance, etc. are set based on the adjustment layer attribute information 3b transmitted from the adjustment layer attribute information extraction unit 11b or the adjustment layer attribute information change unit 12b is temporarily stored. Generate automatically. In particular, when the change value of the attribute information included in the adjustment layer attribute information 3b is received from the content data providing apparatus 2, the adjustment layer attribute information change unit 12b converts the adjustment layer attribute information 3b into the adjustment layer attribute information extraction unit 11b. According to the extracted attribute information, an adjustment layer whose display position, size, brightness, etc. are changed is temporarily generated.

  Then, on the adjustment layer, the content extraction unit 11d has already acquired or is acquired and then transmitted from the upper layer content 3a stored in the content storage unit 21 and the upper layer attribute information extraction unit 11a or the upper layer attribute information change unit 12a. Based on the upper layer attribute information 3a, the upper layer content in which the display position, size, brightness, etc. are set is temporarily generated.

  Then, a content in which these three temporarily generated layers are superimposed is generated and output to the display unit 40.

  The content data composition unit 13 is configured to temporarily generate the upper layer content, the adjustment layer, and the lower layer content, and then superimpose and display them. However, the content data composition unit 13 is not limited to the above-described configuration. Absent. For example, an image in which the upper layer content, the adjustment layer, and the lower layer content are superimposed at once may be generated and displayed.

  The event analysis unit 14 analyzes signals from the event information reception unit 50 and the input operation unit 60, the timer event generation unit 17, the reception unit 31, and the content / attribute information analysis unit 11 described later. Then, it is determined whether new content or attribute information needs to be acquired from the content data providing apparatus 2 or whether the attribute information needs to be changed, and the result is determined based on the content / attribute information requesting unit 15 and the attribute. It transmits to the information change part 12. For this purpose, the content request necessity determining unit 14a and the attribute information change necessity determining unit 14b are provided.

  Whether the content request necessity determination unit 14a compares the signal received from the event information receiving unit 50 with the event information included in the received content data 3 and requests acquisition of new content data 3 Determine. Similarly, it is determined whether or not the input signal from the input operation unit 60 is a request for acquisition of new content data 3. Similarly, an event signal from the timer event generation unit 17 is received, and it is determined whether it is necessary to request acquisition of new content data 3 according to the event signal. Similarly, it is determined whether or not the predetermined signal from the receiving unit 31 is a request for acquisition of new content data 3. Similarly, it is determined whether or not the signal from the content / attribute information analysis unit 11 requests acquisition of the content data 3. An event included in the received content data 3 includes an internal event (ON_LOAD) that occurs when a script described as attribute information included in the content data 3 is activated.

  If it is determined that the acquisition of new content data 3 is requested, the content request necessity determination unit 14 a transmits a transmission request 4 for requesting transmission of the content data 3 to the content / attribute information request unit 15. To do. In addition, in order to cause the instruction information generation unit 16 to generate the instruction information 5, the instruction information generation unit 16 may be notified of attribute information to be changed.

  The attribute information change necessity determination unit 14b compares the signal received from the event information reception unit 50 with the event information included in the received content data, and determines whether the attribute information needs to be changed. To do. Further, it is determined whether or not the input signal from the input operation unit 60 requires changing attribute information. Further, an event from the timer event generation unit 17 is received, and it is determined whether or not the attribute information needs to be changed according to the event. Further, it is determined whether or not the predetermined signal from the receiving unit 31 requires changing attribute information.

  If it is determined that the attribute information needs to be changed, the attribute information change necessity determination unit 14b further 1) issues a transmission request 4 for requesting transmission of the changed attribute information as a content / attribute information request. It is determined whether to transmit to the unit 15 or 2) to transmit a request to change the attribute information to the attribute information changing unit 12. Here, which of the above processes 1) or 2) is performed depends on the attribute information to be changed, and will be described below.

  The attribute information includes information that can be changed by the content display device 1 and information that cannot be changed by the content display device 1 and can be changed only by the content data providing device 2. For example, the change of the attribute information such as the width, height, and display position requires the content data 3 to be regenerated, and therefore cannot be changed by the content display device 1 and can be changed only by the content data providing device 2. . On the other hand, as long as only attribute information such as transmittance and color is changed, the other layers constituting the content data 3 are not affected.

  The attribute information change permission / inhibition information is stored in advance in the attribute information storage unit 222 in the content data providing apparatus 2 described later. Therefore, it can be specified that all the attribute information cannot be changed by the content display device 1. Furthermore, even if the attribute information is designated in advance as unchangeable, it may be set as changeable when the content data providing apparatus 2 generates the content data 3. Conversely, even if the attribute information is designated in advance as changeable, when the content data providing apparatus 2 generates the content data 3, it may be set as unchangeable.

  Therefore, the attribute information change necessity determination unit 14b determines that the attribute information change necessity is necessary when the attribute information to be changed can be changed by the content display apparatus 1 or when the attribute information to be changed has already been acquired from the outside. The rejection determination unit 14b transmits a change request to the attribute information change unit 12. On the other hand, if the attribute information to be changed can be changed only by the content data providing apparatus 2 and the attribute information to be changed has not been acquired, the attribute information change necessity determination unit 14b sends the transmission request 4 to the content It transmits to the attribute information request part 15. In addition, in order to cause the instruction information generation unit 16 to generate the instruction information 5, the instruction information generation unit 16 may be notified of attribute information to be changed.

  The content / attribute information request unit 15 transmits the transmission request 4 transmitted from the event analysis unit 14 to the content data providing apparatus 2 via the transmission control unit 73 and the transmission unit 32. As described above, the transmission request 4 includes a transmission request for content data 3 and a transmission request for attribute information after change.

  Further, the content / attribute information requesting unit 15 may also transmit the instruction information 5 transmitted from the instruction information generating unit 16 described later to the content data providing apparatus 2. The instruction information 5 includes content data 3 that is generated by the content data providing device 2 and content information that is set according to the content display device 1 that requested the content data and the user when the attribute information is changed. This is information for giving instructions necessary for generating the data 3.

  When the instruction information generation unit 16 receives a signal from the event analysis unit 14, the instruction information generation unit 16 acquires information stored in advance in the storage unit 20 to generate instruction information 5, and sends it to the content / attribute information request unit 15. Send. Details of the instruction information 5 will be described later.

  When the content data 3 analyzed by the content / attribute information analysis unit 11 includes control information such as a script that generates a timer event that occurs according to time, the timer event generation unit 17 generates a predetermined event according to the control information. Generate a signal. Then, the event signal is transmitted to the event analysis unit 14.

(Configuration of content data providing device)
Next, the configuration of the content data providing apparatus 2 will be described with reference to FIG. FIG. 4 is a block diagram showing a configuration of the content data providing apparatus 2 according to the present embodiment. As shown in FIG. 4, the content data providing apparatus 2 includes a control unit 210, a storage unit 220, a communication unit 230, and an input / output control unit 270.

  The control unit 210 controls the storage unit 220 and the input / output control unit 270 and performs predetermined arithmetic processing. As the predetermined calculation process, for example, there is a process of transmitting the content data 3 to the content data providing apparatus 2. A detailed configuration of the control unit 210 will be described later.

  The storage unit 220 stores various data used by the control unit 210, data obtained by executing a program, and the like, and is realized by a nonvolatile memory such as a ROM or a flash memory. The various data is stored in various storage units inside the storage unit 220, that is, the content storage unit 221 and the attribute information storage unit 222.

  The content storage unit 221 stores the upper layer content 3d and the lower layer content 3e constituting the content data to be transmitted to the content display device 1.

  The attribute information storage unit 222 stores upper layer attribute information 3a, adjustment layer attribute information 3b, and lower layer attribute information 3c constituting content data to be transmitted to the content display device 1.

  Note that the storage unit 220 is not necessarily provided in the content data providing apparatus 2 and may be configured to be connected to the content data providing apparatus 2 in an readable state as an external storage device.

  The communication unit 230 communicates with the content display device 1 and an external server (not shown) via a communication network, and includes a reception unit 231 and a transmission unit 232 inside.

  The receiving unit 231 receives a content transmission request transmitted from the content display device 1 and is controlled by the reception control unit 272. The content transmission request received by the reception unit 231 is sent to the reception control unit 272. Further, the receiving unit 231 may receive a predetermined signal transmitted from an external server (not shown), and the received predetermined signal is sent to the reception control unit 272.

  The reception control unit 272 controls the reception unit 231 and transmits the received content transmission request and the received predetermined signal to the reception data analysis unit 211 described later.

  The transmission unit 232 transmits content data to the content display device 1 and is controlled by the transmission control unit 273.

  The transmission control unit 273 controls the transmission unit 232 and transmits the content data received from the content data generation unit 215 described later to the transmission unit 232.

  Next, the control unit 210 will be described in detail. The control unit 210 includes a reception data analysis unit 211, an attribute information change setting unit 214, and a content data generation unit 215.

  The reception data analysis unit 211 acquires the transmission request 4 from the content display device 1, acquires the instruction information 5 transmitted together with the transmission request 4, and the content data 3 requested from the content display device 1. It is determined whether or not the attribute information included in is required to be changed to a predetermined value. The received data analysis unit 211 receives a predetermined signal from an external server (not shown) and determines whether or not to transmit the content data 3 corresponding to the signal to the content display device 1. An example of transmitting content data 3 corresponding to a predetermined signal from an external server to the content display device 1 will be described later.

  For this purpose, the reception data analysis unit 211 includes a reception content analysis unit 212 and an attribute information change determination unit 213.

  The received content analysis unit 212 analyzes the content of the transmission request 4 and specifies the content data 3 to be transmitted. For example, when the transmission request 4 includes information that can uniquely identify the content data 3, the content data 3 to be transmitted is specified based on the ID. Then, information that can identify the specified content data 3 is transmitted to a content data generation unit 215 and an attribute information change determination unit 213 described later. Also, if there is instruction information 5 transmitted together, it is acquired and transmitted to the attribute information change determination unit 213.

  The attribute information change determination unit 213 determines whether to change the attribute information included in the specified content data 3 based on the instruction information 5. Specifically, first, it is checked whether or not there is attribute information to be changed based on the instruction information 5 in the attribute information included in the identified content data 3. When there is attribute information to be changed, it is further checked whether or not the attribute information can be updated. Whether or not the attribute information can be updated is set in advance and stored in the attribute information storage unit 222 (for example, the attribute information “display position” is “changeable” and the attribute information “size” is “changed”. Etc.). If the attribute information is updatable, the attribute information change determination unit 213 determines to change the attribute information, and transmits an attribute information change instruction to the attribute information change setting unit 214. On the other hand, when the attribute information to be changed does not exist in the attribute information included in the identified content data 3 or the attribute information to be changed is not updatable, the attribute information change determination unit 213 displays the attribute information. It decides not to change, and transmits the decision result to the content data generation unit 215 to be described later.

  The attribute information change setting unit 214 changes the attribute information based on the change instruction transmitted from the attribute information change determination unit 213. For this purpose, the attribute information change setting unit 214 includes an upper layer attribute information change setting unit 214a and an adjustment layer attribute information change setting unit 214b.

  The upper layer attribute information change setting unit 214a updates the upper layer attribute information 3a based on the change instruction transmitted from the attribute information change determination unit 213. Then, the updated upper layer attribute information 3 a is stored in the attribute information storage unit 22.

  The adjustment layer attribute information change setting unit 214b updates the adjustment layer attribute information 3b based on the change instruction transmitted from the attribute information change determination unit 213. Then, the updated adjustment layer attribute information 3 b is stored in the attribute information storage unit 22.

  The content data generation unit 215 is based on the information of the content data 3 transmitted from the received content analysis unit 212, the determination result transmitted from the attribute information change determination unit 213, and the attribute information changed by the attribute information change setting unit 214. Content data 3 to be transmitted to the content display device 1 is generated. For this purpose, the content data generation unit 215 acquires the upper layer attribute information 3a, the adjustment layer attribute information 3b, the lower layer attribute information 3c, the upper layer content 3d, and the lower layer content 3e that constitute the content data to be transmitted to the content display device 1. . Therefore, the content data generation unit 215 includes an upper layer attribute information acquisition unit 215a, an adjustment layer attribute information acquisition unit 215b, a lower layer attribute information acquisition unit 215c, and a content acquisition unit 215d. The generated content data 3 is transmitted to the content display device 1 via the transmission control unit 273 and the transmission unit 232.

  Note that the content data 3 generated by the content data generation unit 215 may include only attribute information. For example, when the transmission request 4 from the content display device 1 requests only attribute information, only the attribute information is generated as the content data 3.

  The upper layer attribute information acquisition unit 215 a acquires the upper layer attribute information 3 a from the attribute information storage unit 222 in the content data 3 transmitted to the content display device 1. When there are a plurality of upper layers, the respective upper layer attribute information 3a is acquired. When the upper layer attribute information is updated in the upper layer attribute information change setting unit 214a, the updated upper layer attribute information 3a is acquired.

  The adjustment layer attribute information acquisition unit 215 b acquires the adjustment layer attribute information 3 b from the attribute information storage unit 222 among the content data 3 transmitted to the content display device 1. When there are a plurality of adjustment layers, the respective adjustment layer attribute information 3b is acquired. When the adjustment layer attribute information is updated in the adjustment layer attribute information change setting unit 214b, the updated adjustment layer attribute information 3b is acquired.

  The lower layer attribute information acquisition unit 215 c acquires the lower layer attribute information 3 c from the attribute information storage unit 222 among the content data 3 transmitted to the content display device 1. When there are a plurality of lower layers, the respective lower layer attribute information 3c is acquired.

  The content acquisition unit 215 d acquires the upper layer content 3 d and the lower layer content 3 e from the content storage unit 221 among the content data 3 transmitted to the content display device 1.

  Here, the upper layer attribute information 3a or the adjustment layer attribute information 3b includes the content display device 1 receiving an input signal from the input operation unit 60, an event signal from the event information receiving unit 50, an event from the timer event generating unit 17, and a receiving unit. Control information for adjusting the attribute information of the adjustment layer to a predetermined value when a predetermined signal from 31 is received is included. This control information is described as a script in text data such as XML (eXtensible Markup Language). That is, a script for adjusting the attribute information of the adjustment layer to a predetermined value is described as a part of the upper layer attribute information 3a or the adjustment layer attribute information 3b, and the script is called when the signal is received. The script may be stored in the storage unit 220 in advance.

  Here, the content data providing apparatus 2 may separately provide the content data 3 including the upper layer and the adjustment layer and the content data 3 including only the lower layer, which will be described below.

  When the attribute information of the adjustment layer is adjusted by a user operation on the upper layer, there is a dependency between the upper layer and the adjustment layer. However, when the lower layer is not controlled by the user's operation on the upper layer, there is no dependency between the upper layer, the adjustment layer, and the lower layer. Therefore, in this case, the upper layer, the adjustment layer, and the lower layer can be provided as separate content data 3.

  Since the content data can be provided separately, the content data providing apparatus that provides the content data 3 including the upper layer and the adjustment layer is different from the content data providing apparatus that provides the content data 3 including only the lower layer. Good. Furthermore, the content data 3 including only the lower layer may not be provided from the content data providing apparatus. That is, the content data 3 including only the lower layer may be stored in advance in the storage unit 20 of the content display device 1 instead of being provided from the content data providing device.

  In the content display device 1, the obtained upper layer, adjustment layer, and lower layer may be combined by the content data combining unit 13.

  As described above, there are a content data providing apparatus that generates content data 3 including only the upper layer and the adjustment layer, and a content data providing apparatus that generates content data 3 including only the lower layer. Therefore, the content data generation unit 215 includes the upper layer attribute information acquisition unit 215a, the adjustment layer attribute information acquisition unit 215b, the lower layer attribute information acquisition unit 215c, and the content acquisition unit 215d. However, the content data generation unit 215 is limited to the above-described configuration. is not. That is, the content data generation unit 215 in the content data providing apparatus that generates the content data 3 including only the upper layer and the adjustment layer may include the upper layer attribute information acquisition unit 215a and the adjustment layer attribute information acquisition unit 215b. The information acquisition unit 215c may not be provided. In this case, the content data generation unit 215 generates the content data 3 from the upper layer attribute information and content, and the adjustment layer attribute information, and transmits the content data 3 to the content display device 1.

(Processing flow in content display system)
Next, referring to FIG. 5, the content display device 1 requests the content data providing device 2 to transmit the content data 3, acquires the content data 3, displays it, and updates the content. The procedure will be described.

  In the process P1, the content display device 1 requests the content data providing device 2 to transmit the content data 3 in order to start browsing the content, acquires the content data 3, and displays the acquired content data 3 It is processing.

  When the event analysis unit 14 detects that the user of the content display device 1 has input a content browsing start instruction from the input operation unit 60 (YES in S1), a transmission request is made via the content / attribute information requesting unit 15. 4 is transmitted to the content data providing apparatus 2 (S2).

  Upon receiving the transmission request 4 (YES in S3), the content data providing apparatus 2 executes content data generation processing to generate the content data 3 corresponding to the transmission request 4 (S4). Detailed processing of the content data generation processing will be described later. Then, the generated content data 3 is transmitted to the requesting content display device 1 (S5).

  When the content display device 1 receives the content data 3 from the content data providing device 2 (S6), the content / attribute information analysis unit 11 acquires the attribute information and content of each layer, and based on the result, the content data synthesis unit 13 synthesizes the content data 3 displayed on the display unit 40 (S7). Then, the synthesized content is displayed on the display unit 40 (S8).

  Next, in the process P2, the content display apparatus 1 performs content data 3 according to an event (user operation, timer process, notification from an external server, etc.) received by the content display apparatus 1 while the user is browsing the content. Is a process of updating.

  Whether the event information receiving unit 50 of the content display device 1 has received an event from the outside, the user of the content display device 1 has operated the content from the input operation unit 60, or the timer event generation unit 17 has a timer When the event analysis unit 14 detects that an event has occurred or that the reception unit 31 has received a predetermined signal from an external server (YES in S9), the content display device 1 executes content data update processing ( S10). Detailed processing of the content data update processing will be described later. In the content data update process, if the attribute information needs to be changed in the content data providing apparatus 2, the transmission request 4 is transmitted to the content data providing apparatus 2 via the content / attribute information requesting unit 15.

  When the content data providing apparatus 2 receives the transmission request 4 (YES in S11), the content data providing apparatus 2 executes content data generation processing for generating the content data 3 corresponding to the transmission request 4 (S12). Then, the generated content data 3 is transmitted to the requesting content display device 1 (S13).

  In the content data update process, the content display device 1 receives the content data 3 from the content data providing device 2 when requesting the content data providing device 2 to change the attribute information. Get attribute information and content of.

  On the other hand, in the content data update process, the content display device 1 does not request the content data providing device 2 to change the attribute information but requests the attribute information change unit 12 of the content display device 1 to change the attribute information. The attribute information changing unit 12 changes the requested attribute information.

  Then, based on the attribute information acquired from the content / attribute information analysis unit 11 or the attribute information change unit 12, the content data synthesis unit synthesizes the content displayed on the display unit 40 (S14). Then, the synthesized content is displayed on the display unit 40 (S15).

(Details of content data generation processing)
Next, the procedure of the content data generation process described above will be described with reference to FIG. FIG. 6 is a flowchart showing the flow of content data generation processing.

  First, the received content analysis unit 212 analyzes the transmission request 4 received from the content display device 1 and specifies the content data 3 to be transmitted (S20). Then, it is checked whether or not the instruction information 5 has been received (S21).

  When the instruction information 5 is received (YES in S21), the attribute information change determination unit 213 changes the attribute information included in the content data 3 to be transmitted to the content display device 1 based on the instruction information 5. It is checked whether or not the attribute information to be present exists (S22).

  If there is attribute information to be changed (YES in S22), the setting state of whether or not the attribute information can be updated is further checked (S23). If the attribute information can be updated (YES in S23), attribute information change determination section 213 determines to change the attribute information, and transmits an attribute information change instruction to attribute information change setting section 214. Then, the attribute information change setting unit 214 changes the attribute information based on the change instruction transmitted from the attribute information change determination unit 213 (S24).

  On the other hand, if instruction information 5 has not been received (NO in S21), or attribute information to be changed does not exist in the attribute information included in content data 3 to be transmitted to content display device 1 (S22). No), or when the attribute information to be changed is not updatable (NO in S23), the content data generation unit 215 receives the content data 3 information and attribute information transmitted from the received content analysis unit 212. Based on the determination result transmitted from the change determination unit 213 and the attribute information changed by the attribute information change setting unit 214, the content data 3 to be transmitted to the content display device 1 is generated (S25), and the content generation process ends.

(Details of content data update processing)
Next, the procedure of the content data update process described above will be described with reference to FIG. FIG. 7 is a flowchart showing the flow of content data update processing.

  First, the content request necessity determination unit 14 a receives a signal from the event information reception unit 50, a signal from the input operation unit 60, a signal from the timer event generation unit 17, or a signal from the reception unit 31. Analysis is performed (S30), and it is determined whether or not the acquisition of new content or attribute information is requested (S31).

  If it is determined that the request is for the acquisition (YES in S31), the content request necessity determination unit 14a transmits the transmission request 4 to the content / attribute information request unit 15 to request the content / attribute information request. The unit 15 transmits a transmission request 4 to the content data providing apparatus 2 (S35). On the other hand, when it is determined that the content request necessity determination unit 14a does not request acquisition of new content or attribute information (that is, necessary content or attribute information has already been acquired) (NO in S31). The attribute information change necessity determination unit 14b is attributed to a signal from the event information reception unit 50, a signal from the input operation unit 60, a signal from the timer event generation unit 17, or a signal from the reception unit 31. It is determined whether or not information change is requested (S32). If it is determined that the attribute information is to be changed (YES in S32), the attribute information change necessity determination unit 14b can change the attribute information to be changed on the content display device 1, or It is checked whether the change can be made only by the content data providing apparatus 2 (S33).

  If the attribute information to be changed can be changed on the content display device 1 (YES in S33), the attribute information change necessity determination unit 14b transmits a request to change the attribute information to the attribute information change unit 12. (S34). On the other hand, when the attribute information to be changed can be changed only by content data providing apparatus 2 (NO in S33), attribute information change necessity determination unit 14b transmits transmission request 4 to content / attribute information request unit 15. Then, the content / attribute information requesting unit 15 transmits a transmission request 4 to the content data providing apparatus 2 (S35).

  And after transmitting the transmission request 4, the content data 3 transmitted from the content data provision apparatus 2 is received (S36), and a content update process is complete | finished.

  If it is determined that the attribute information is not to be changed (NO in S32), the content update process is terminated.

(Data structure of the control layer)
Next, the data structure of the attribute information of the adjustment layer will be described in detail with reference to FIGS.

  FIG. 8A is a diagram schematically illustrating the data structure of the attribute information of the adjustment layer. As shown in FIG. 8 (a), the adjustment layer attribute information 320 includes an adjustment layer ID 321 as an identifier, position information 322 including the adjustment layer start point coordinates, the height of the adjustment layer, and the width of the adjustment layer, fill of the adjustment layer, and the like. Color information 323 indicating turbidity and turbidity 324 as an index representing the transmittance of the adjustment layer. The closer the value of the turbidity 324 is to 1, the more transparent the adjustment layer is. The closer the value of the turbidity 324 is to 0, the more transparent the adjustment layer is.

  Note that the data structure of the attribute information of the adjustment layer illustrated in FIG. 8A is merely an example, and is not limited to the data structure described above.

  Next, FIG. 8B is a diagram illustrating a specific description example of the attribute information of the adjustment layer. FIG. 8B is an example described as text data by XML, and attribute information of the adjustment layer is described as SVG (Scalable Vector Graphics). In addition, the description other than the attribute information portion of the adjustment layer is omitted.

  As shown in FIG. 8B, the attribute information of the adjustment layer is described as a rect tag, and the adjustment layer ID 321 (id) is described as “black3”. Then, as the position information 322, the start point coordinates (x, y) of the adjustment layer are “0, 0”, the height of the adjustment layer is “1000”, and the width of the adjustment layer is “1920”. is doing. The color information 323 (fill) of the adjustment layer is described as “# 000000” (white). The turbidity 324 (fill-opacity) of the adjustment layer is described as “0.4”. Here, “0.4” indicates that the turbidity is 40%.

  Here, the attribute information of the adjustment layer does not have to be described individually, but may be described together with the attribute information of the upper layer and the attribute information of the lower layer. FIG. 9A is a diagram schematically showing the structure of content data 300a in which the adjustment layer attribute information, the upper layer attribute information, and the lower layer attribute information are described in one structure. As shown in FIG. 9A, the content data 300a includes upper layer attribute information 310, adjustment layer attribute information 320, and lower layer attribute information 330.

  Next, FIG. 9B is a diagram illustrating a specific description example of attribute information included in the content data 300a. FIG. 9B is an example described as XML data as in FIG. 8B, and attribute information is described in SVG. In addition, descriptions are omitted for portions other than the upper layer attribute information, the adjustment layer attribute information, and the lower layer attribute information. As shown in FIG. 9B, the upper layer attribute information 310 is described as text data in the g tag. The adjustment layer attribute information 320 is described as a rect tag as in FIG. The lower layer attribute information 330 is described as a still image using an image tag, and is linked to “thumbnail_JAPAN1.jpg”.

  Next, the attribute information of the adjustment layer is adjusted according to various events. That is, attributes according to user operations on the upper layer, external events such as brightness, timer events generated based on control information included in content data, and predetermined signals notified from external servers The information changing unit 12 changes the attribute information of the adjustment layer.

  Here, when various events are received, in order to adjust the transmittance of the adjustment layer to a predetermined value, for example, a script for adjusting the transmittance may be described as text data such as XML. That is, for example, if a script that is called when an operation such as selecting a predetermined area on the upper layer with a remote controller is accepted, and the script describes a control for adjusting the transmittance of the adjustment layer to a predetermined value, Good.

  FIG. 9B describes a script 340 for adjusting the transmittance of the adjustment layer. By executing the script 340, the transmittance of the adjustment layer is adjusted. In the example of FIG. 9B, a function 341 (setOpacity ()) for setting the turbidity 324 (fill-opacity) value of the adjustment layer having the adjustment layer ID “black” to “0.8” is described. .

  Further, when the user presses the left button of the remote controller or the like (assuming that an “ON_LEFT” event occurs as an internal event at this time), when the event analysis unit 14 accepts the operation as an event, the function 341 A function 342 (selectEvent ()) for calling is described. Thereby, the attribute information changing unit 12 sets the value of the turbidity 324 of the adjustment layer having the adjustment layer ID of “black” to “0.8” instead of “0.4” in accordance with the operation of the remote controller or the like by the user. To do. As a result, the turbidity of the adjustment layer increases, and the lower layer becomes difficult to see.

  In the above, the function 341 describes only the case where the value of the turbidity 324 is set to “0.8”, and the function 342 uses the internal event that the left button of the remote control or the like is pressed as an event as the function 341. However, the present invention is not limited to this, and a function for setting appropriate attribute information according to an internal event may be described.

  Next, a description example of a script when the value of the color information 323 of the adjustment layer is adjusted to make the lower layer easier to see will be described. FIG. 10 is a diagram describing a script 340a for adjusting the color information of the adjustment layer in place of the script 340 in the description example of the content data 300a shown in FIG. 9B.

  In this example, a function 341a (setOpacity ()) for setting the value of the color information 323 (fill) of the adjustment layer having the adjustment layer ID of “black” to “# 00ccff” (light blue) is described.

  Further, similarly to the description in FIG. 9B, when the user presses the left button with a remote controller or the like, when the event analysis unit 14 accepts the operation as an event, the function 342 (selectEvent ()) Is described. Accordingly, the attribute information changing unit 12 changes the value of the color information 323 of the adjustment layer having the adjustment layer ID “black” to “# 00ccff” instead of “# 000000” in accordance with the operation of the remote controller or the like by the user. Set. As a result, since the color of the adjustment layer becomes light, the lower layer can be easily seen.

  In the above description, the function 341a describes only when the value of the color information 323 is set to “# 00ccff”, and the function 342 calls the function 341 by an event that the left button of the remote controller or the like is pressed. Although only the case is described, the present invention is not limited to this, and a function for setting appropriate attribute information according to an event may be described.

  Next, description will be given of a description example in which when the user clicks an area where the adjustment layer is behind with a mouse or the like, the lower layer is less visible by adjusting the value of the turbidity 324 of the adjustment layer. FIG. 11 describes a script 340b for adjusting the turbidity 324 of the adjustment layer in place of the script 340 in the description example of the content data 300a in FIG. FIG. 6 is a diagram describing adjustment layer attribute information 320b.

  In this example, as the adjustment layer attribute information 320b of the adjustment layer having the adjustment layer ID of “black”, a description for calling the function 342b (clickEvent (evt)) is added as an operation (onclick) when the adjustment layer is clicked. is doing.

  Further, the script 340b describes that the function 342b calls the function 341 (setOpacity ()). Therefore, when the user clicks the area where the adjustment layer having the adjustment layer ID “black” is behind, the event analysis unit 14 accepts the operation as an event. Then, the attribute information changing unit 12 sets the value of the turbidity 324 of the adjustment layer to “0.8” instead of “0.4”. As a result, the turbidity of the adjustment layer increases, and the lower layer becomes difficult to see.

  Incidentally, the target adjustment layer whose attribute information is to be changed according to the user's operation does not necessarily need to be an adjustment layer located behind the operated region. That is, a script that adjusts the transmittance of the adjustment layer located behind a predetermined area other than the area to be operated may be written in response to a user's operation.

  Therefore, when the user operates an area where the adjustment layer is behind with a remote controller or the like, a description example in which the lower layer is made difficult to see by adjusting the value of the turbidity 324 of the adjustment layer other than the adjustment layer. explain. FIG. 12 describes a script 340c for adjusting the turbidity 324 of the adjustment layer in place of the script 340 in the description example of the content data 300a in FIG. FIG. 6 is a diagram describing adjustment layer attribute information 320c.

  In this example, an adjustment layer having an adjustment layer ID “middle1” located behind the characters “baby” described in the upper layer attribute information 310, an area of characters described in the upper layer attribute information 310, and The adjustment layer having the adjustment layer ID of “middle2”, which is positioned irrelevantly, is described in the adjustment layer attribute information 320c.

  Then, a function 341c (setOpacity ()) for setting the value of the turbidity 324 of the adjustment layer having the adjustment layer ID of “middle1” to “0.2” is described. Further, similarly to FIG. 9B, when the user presses the left button of the remote controller or the like, the event analysis unit 14 accepts the operation as an event and describes a function 342 (selectEvent ()) that calls the function 341c. is doing. Thereby, the attribute information changing unit 12 sets the value of the turbidity 324 of the adjustment layer having the adjustment layer ID “middle1” positioned irrespective of the character area to “0.4” in accordance with the operation of the remote controller or the like by the user. Set to “0.2” instead. As a result, the turbidity of the adjustment layer having the adjustment layer ID of “middle 1” decreases, and the upper layer portion becomes difficult to see. As a result, the upper layer portion where the adjustment layer having the adjustment layer ID of “middle2” is conspicuous and is easily visible.

  In addition, as described above, the upper layer, the adjustment layer, and the lower layer may be provided as separate content data. In this case, only the attribute information of the adjustment layer and the attribute information of the upper layer may be collectively described as one XML data, while the attribute information of the lower layer may be described as XML data different from these. Further, only the attribute information of the adjustment layer and the attribute information of the upper layer may be collectively described as one XML data, and the lower layer may be data such as a simple video having no attribute information.

  FIG. 13A is a diagram schematically showing the structure of content data 300b including attribute information on the adjustment layer and attribute information on the upper layer. As shown in FIG. 13A, the content data 300b includes upper layer attribute information 310 and adjustment layer attribute information 320.

  Next, FIG. 13B is a diagram illustrating a specific description example of attribute information included in the content data 300b. FIG. 13B is an example described as XML data as in FIG. 9B, and attribute information is described in SVG. Further, description is omitted except for the attribute information portion of the upper layer and the attribute information of the adjustment layer. As shown in FIG. 13B, the upper layer attribute information 310 is described as text data in the g tag, as in FIG. 9B. The adjustment layer attribute information 320 is described as a rect tag as in FIG.

  Note that lower layer attribute information can be created separately regardless of the description in FIG.

  Next, a description example will be described in which only attribute information is acquired from the content data providing apparatus 2 and the value of the turbidity 324 of the adjustment layer is adjusted according to the event.

  FIG. 14 is a diagram schematically showing the script 340h that is the above description example for adjusting the transmittance of the adjustment layer. By executing the script 340h, the transmittance of the adjustment layer is adjusted. In the script 340h, a function 341h (setOpacity ()), a function 342h (selectEvent ()), and a function 343h (setUserSetting (param)) are described.

  The function 341h (setOpacity ()) sets the opacity 324 (fill-opacity) value of the adjustment layer having the adjustment layer ID “blue” to the value of “opvalue”.

  The function 342h (selectEvent ()) accepts the operation as an event when the script 340h is activated (at this time, an “ON_LOAD” event is generated), and calls the readFromServer function. . Then, the readFromServer function makes a request to acquire attribute information corresponding to the predetermined identifier “blueOpacity” from the content data providing apparatus 2. The identifier “blueOpacity” is transmitted to the content data providing apparatus 2 as instruction information 5. In the content data providing device 2, if there is a predetermined value corresponding to the identifier “blueOpacity”, the content data providing device 2 transmits the content data 3 to the content display device 1. Then, if the value corresponding to the identifier “blueOpacity” can be acquired, the content display device 1 replaces “opvalue” with the acquired value and calls the function 341h (setOpacity ()). Here, the predetermined identifier is not limited to the “blueOpacity”.

  As described above, when the content including the script 340h is activated, the value of the turbidity 324 of the adjustment layer having the adjustment layer ID “blue” is acquired from the content data providing apparatus 2, and the attribute information changing unit 12 acquires the attribute information acquired. Can be set.

  Note that the readFromServer function is a function that acquires attribute information corresponding to an argument from the content data providing apparatus 2 because it is a library function that is incorporated in the script description language in advance, but is not defined here.

  The function 342h (selectEvent ()) is a function 341h (setOpacity ()) when the user presses the left button of the remote controller or the like (at this time, an “ON_LEFT” event is generated as an internal event). Call. In this case, the value of the turbidity 324 of the adjustment layer having the adjustment layer ID of “blue” is not changed.

  The function 343h (setUserSetting (param)) is a function for saving the attribute information corresponding to the identifier “blueOpacity” in the storage unit 20.

  In the adjustment layer attribute information 320h, the adjustment layer ID 321 (id) is “blue”, and the position information 322 includes the adjustment layer start point coordinates (x, y) of “0, 0”, the height of the adjustment layer ( height) is “1000”, the adjustment layer width is “1920”, the adjustment layer color information 323 (fill) is “# 000000” (white), and the adjustment layer turbidity 324 (fill- (opacity) is described as “0.5”. Note that description of upper layer attribute information and lower layer attribute information is omitted.

(Data structure of instruction information)
Next, referring to FIGS. 15A and 15B, the data structure of the instruction information 5 will be described in detail with an example.

  FIG. 15A schematically shows an example of the data structure of the instruction information 5 to be transmitted together when the content data 3 including the content and the changed attribute information is requested to the content data providing apparatus 2. FIG. The instruction information 5 shown in FIG. 15A includes a transmission factor 421 (fore-transparency) for designating a transmission factor when a cursor or the like is focused on the adjustment layer, a cursor or the like from above the adjustment layer. Non-focus transmittance 422 (back-transparency) for specifying the transmittance when the focus is lost, the focus color 423 (fore-color) which is the color when the focus is applied, and the color when the focus is lost A non-focus color 424 (back-color), a user ID 425 (id) of a user who views the content, and a password 426 (password) corresponding to the user ID are included.

  The attribute value of the in-focus transmittance 421, the attribute value of the in-focus transmittance 422, the attribute value of the focus color 423, the attribute value of the non-focus color 424, the user ID 425, and the password 426 are stored in the instruction information storage unit 23 in advance. It is what has been.

  After the content data providing apparatus 2 receives the instruction information 5 shown in FIG. 15A, the attribute information change setting unit 214 includes the in-focus transmittance 421 and the unfocused transmittance 422 included in the received instruction information 5. The values indicated by the focus color 423 and the non-focus color 424 are set as the color information 323 and turbidity 324 values of the adjustment layer included in the content data transmitted to the content display device 1.

  Note that the instruction information storage unit 23 of the content data providing apparatus 2 may hold in advance instruction information 5 shown in FIG. 15A for each user. In this case, when the content data providing apparatus 2 receives the instruction information 5 shown in FIG. 15A, the user is identified by the user ID 425 and the password 426, the color information 323 of the adjustment layer corresponding to the user, and the turbidity A value of degree 324 may be set.

  Next, FIG. 15B is a diagram schematically illustrating an example of the data structure of the instruction information 5 that is transmitted together with the content data providing apparatus 2 when requesting the transmission of only the changed attribute information. It is. The instruction information 5 shown in FIG. 15B includes a user ID 431 (id) of a user who views the content, a password 432 (password) corresponding to the user ID, and attribute information 433 (attribute) to receive the changed value. Contains. The attribute information for which the change value is to be received is the attribute information notified from the event analysis unit 14 by the instruction information generation unit 16.

  When it is necessary to notify the content data providing apparatus 2 of the application being displayed on the content display apparatus 1, the application ID 434 (application) of the application may be included.

  In this example, “fore-color” (color at the time of focus) and “fore-opacity” (turbidity at the time of focus) are specified as the attribute information 433 for receiving the change value.

  After the content data providing apparatus 2 receives the instruction information 5 shown in FIG. 15A, the content data generation unit 215 includes the attribute information specified by the attribute information 433 included in the received instruction information 5. Data 3 is generated. In this example, the content data 3 including attribute information “# 00ccff” (light blue) as the fore-color value and “0.2” (20%) as the fore-opacity value, for example, is generated.

  The data structure of the instruction information 5 shown in FIGS. 15A and 15B is merely an example, and is not limited to the data structure described above. For example, an identifier unique to a terminal such as a production number of the content display device 1 may be used instead of the user ID and password.

(Event types and control details of the control layer)
Next, the types of events accepted by the content display device 1 and how to set the attribute information of the adjustment layer according to the events will be described with examples.

  In the following, a case will be described in which the lower layer content is a TV video and the upper layer content is an OSD e-mail application. However, the content whose visibility is adjusted according to the event is not limited to the combination of the TV image and the OSD e-mail application.

  Further, turbidity will be described as an example of attribute information set according to the event. However, the attribute information set according to the event is not limited to the turbidity.

(Event example 1 User operation)
As described in the above embodiment, predetermined signals generated by pressing various buttons on the remote controller, clicking a mouse, touching a display panel, and the like, which are input from the input operation unit 60, can be used as events. For example, when the event information receiving unit 50 detects a signal from a remote controller or the like, a script that changes the turbidity 324 of the adjustment layer to a predetermined value according to the signal is set in the content data in advance.

  Thereby, for example, it is possible to make it easier to see the lower layer TV image as an event that the user presses the up key of the remote controller. In addition, for example, it is possible to make the upper-layer e-mail application easier to see with an event that the user presses the down key on the remote controller.

  In the above, the predetermined signal generated by pressing the up key or the down key is not limited to an event, and a predetermined signal generated by another button operation such as a numeric button is used as an event. You may recognize it.

  In addition, when a mouse click, a touch operation on the display panel, or the like is performed, the clicked and touched coordinate information can be acquired. Therefore, when a plurality of adjustment layers are provided, a script for changing the turbidity 324 of the adjustment layer provided behind the clicked or touched coordinates to a predetermined value is set in the content data in advance. It is possible to make it easy to see a TV image only for a clicked or touched part, or to make an e-mail application easier to see.

(Event 2 Timer event)
As described in the above embodiment, the predetermined signal generated by the timer event generating unit 17 based on control information such as a script included in the content data can be used as an event.

  For example, the timer event generation unit 17 generates a “TIMER” event. Then, a script for changing the turbidity 324 of the adjustment layer to a predetermined value according to the “TIMER” event may be provided in the content data in advance. As a result, the turbidity 324 of the adjustment layer can be changed to a predetermined value as time elapses regardless of the user's operation or an external event.

(Event 3 user voice)
The user's voice can be used as an event by capturing the user's voice with a voice input device (not shown) and recognizing it with a voice recognition device (not shown). For example, when the event information receiving unit 50 receives an audio signal “TV”, a script for changing the turbidity 324 of the adjustment layer to a predetermined low value is set in the content data in advance.

  For example, when an audio signal “TV” is received, an “ON_SOUND_TV” event occurs as an internal event. When the internal event “ON_SOUND_TV” occurs, a script for setting the turbidity 324 (fill-opacity) value to “0.2” may be provided in the content data in advance. Thereby, since the adjustment layer is transparent with the user's “TV” sound as an event, the lower layer television image can be preferentially displayed and easily visible.

  For example, when the event information receiving unit 50 receives an audio signal “mail”, a script for changing the turbidity 324 of the adjustment layer to a predetermined high value is set in the content data in advance. As a result, the user's “mail” sound is used as an event to prevent the adjustment layer from being seen through, making it difficult to see the lower layer television image. That is, it is possible to preferentially display the upper layer electronic mail application so that it can be easily seen.

(Event 4 user attitude and distance between user and content display device 1)
The posture of the user can be used as an event by capturing the posture of the user with an image capturing device (not shown) and recognizing it with an image recognition device (not shown). For example, when the event information receiving unit 50 receives a signal that the user has approached the display unit 40 (that is, in the image pickup apparatus, the user's image area is larger than a predetermined area), the turbidity of the permeation control layer A script for changing the degree 324 to a predetermined high value is set in the content data in advance. As a result, since the adjustment layer cannot be seen as an event that the user has approached the display unit 40, the upper-layer e-mail application can be preferentially displayed and can be easily seen.

  On the contrary, when the event information receiving unit 50 receives a signal that the user has moved away from the display unit 40 (that is, the image area of the user has become smaller than the predetermined region in the image capturing apparatus), the adjustment layer is turbid. A script for changing the degree 324 to a predetermined low value is set in the content data in advance. Accordingly, since the adjustment layer is transparent as an event that the user has moved away from the display unit 40, the lower layer television image can be preferentially displayed and easily visible.

  Further, the distance between the user and the content display device 1 may be measured periodically, and the turbidity 324 of the adjustment layer may be adjusted according to the distance. For example, if the distance is shorter than a predetermined value, the upper layer e-mail application may be easily seen. On the other hand, if the distance is longer than a predetermined value, the lower layer TV image may be easily seen.

  For example, it is assumed that an internal event occurs when the distance X (unit is meter) between the user and the content display device 1 fluctuates by a predetermined value or more (for example, 0.5 meter). When the internal event occurs, a script for calculating and setting the turbidity 324 (fill-opacity) value by the following formula may be provided.

fill-opacity = 1- (X-0.5) / 5
In the above formula, when the distance X is 0.5 meter, the value of the turbidity 324 is “1”, so that the upper-layer e-mail application can be easily seen. On the other hand, when the distance X is 5.5 meters, the value of the turbidity 324 is “0”, so that the lower layer television image can be easily seen. Regardless of the above formula, when the distance X is shorter than 0.5 meters, the value of the turbidity 324 should be set to “1”, and when the distance X is longer than 5.5 meters The value of turbidity 324 may be set to “0”.

(Event 5 user perspective)
The user's viewpoint can be used as an event by capturing the user's viewpoint with an image capturing device (not shown) and recognizing it with a viewpoint position recognition device (not shown). For example, when the event information receiving unit 50 receives a signal that the user's viewpoint is within the display area of the mail application, a script for changing the turbidity 324 of the adjustment layer to a predetermined high value is set in the content data in advance. Keep it. As a result, since the adjustment layer cannot be seen as an event that the user has approached the display unit 40, the upper-layer e-mail application can be preferentially displayed and can be easily seen.

  On the contrary, when the event information receiving unit 50 receives a signal that the user's viewpoint is not within the display area of the mail application, a script for changing the turbidity 324 of the adjustment layer to a predetermined low value is added to the content data in advance. Set it. Accordingly, since the adjustment layer is transparent as an event that the user has moved away from the display unit 40, the lower layer television image can be preferentially displayed and easily visible.

(Event 6 Brightness around the content display device 1)
The brightness around the content display device 1 can be used as an event by taking in the brightness around the content display device 1 with a brightness detection sensor (not shown) and recognizing it with a brightness recognition device (not shown). For example, when the event information receiving unit 50 receives a signal that the surroundings of the content display device 1 has become dark, a script that changes the turbidity 324 of the adjustment layer to a predetermined high value in accordance with the darkness is previously set in the content data. Set it. For example, if the value of turbidity 324 is normally “0.8”, a script for setting the value of turbidity 324 to “0.85” may be provided in the content data in advance when the room becomes a predetermined darkness.

  Thereby, since the adjustment layer cannot be seen as an event that the periphery of the content display device 1 has become dark, it is possible to preferentially display the e-mail application and make it easier to see.

  On the contrary, when the event information receiving unit 50 receives a signal that the periphery of the content display device 1 has become bright, a script that changes the turbidity 324 of the adjustment layer to a predetermined low value in accordance with the brightness is stored in advance in the content data. Set to. For example, when the value of turbidity 324 is normally “0.8”, a script for setting the value of turbidity 324 to “0.75” may be provided in the content data in advance when the room has a predetermined brightness.

  Thereby, since the adjustment layer can be seen as an event that the periphery of the content display device 1 becomes bright, it is possible to preferentially display the television image and make it easy to see.

(Event 7 Content brightness)
The brightness of the content can be used as an event by recognizing the brightness of the content by an image processing device (not shown). For example, when the event information receiving unit 50 receives a signal indicating that the image of the portion of the lower layer television image that overlaps the upper layer e-mail application is dark, the turbidity 324 of the adjustment layer is set to a predetermined level according to the darkness. A script for changing to a lower value is set in the content data in advance. Thereby, it is possible to make it easy to see the video of the part as an event that the video of the part overlapping the upper layer e-mail application in the TV picture of the lower layer becomes dark.

  On the other hand, when the event information receiving unit 50 receives a signal that the image of the portion of the lower layer TV image that is overlapped with the upper layer e-mail application is bright, the turbidity 324 of the adjustment layer is set to a predetermined value according to the darkness. A script for changing to a higher value is set in the content data in advance. This prevents the adjustment layer from being seen through as an event that the image of the portion of the lower layer TV image that overlaps with the upper layer e-mail application becomes brighter, so that the e-mail application can be prevented from becoming difficult to see. .

(Event example 8 Notification from an external server)
A signal notified from the content data providing apparatus 2 or another external server via a communication network may be handled as an event. For example, a notification signal indicating that the receiving unit 31 has received an e-mail from the outside may be used as an event.

  At this time, 1) when receiving only the notification signal from the external server, 2) when receiving the changed attribute information together with the notification signal, and 3) content data after the change together with the notification signal 3 is received.

  And 1) When only the notification signal is received, the attribute information changing unit 12 may change the predetermined attribute information in accordance with the received notification signal, and then display the content on the display unit 40. 2) When the changed attribute information is received together with the notification signal, the attribute information changing unit 12 changes the predetermined attribute information using the received changed attribute information, and then the display unit. What is necessary is just to display a content on 40. 3) When the changed content data 3 is received together with the notification signal, the display unit based on the content and attribute information extracted by the content data analysis unit from the received changed content data 3 What is necessary is just to display a content on 40.

  In the above cases 2) and 3), the attribute information and the content data 3 are transmitted without requesting the content data providing device 2 from the content display device 1, but the content data providing device 2 displays the content. Assume that the existence of an e-mail application running on the apparatus 1 is known. For example, when an e-mail application is activated in the content display device 1, the content data providing device 2 knows the presence of the e-mail application by requesting the predetermined content data 3 from the content data providing device 2. What should I do?

(Application example)
Next, content that can be displayed by applying the content display device 1 according to the present embodiment will be described by way of example with reference to FIGS.

(Application example 1 Overlay display of keyword group and thumbnail list image)
16 to 17 are diagrams showing a state in which the keyword group and the thumbnail list image corresponding to the selected keyword are superimposed and displayed on the content display device 1 according to the present embodiment.

  FIG. 16 is a diagram showing a hierarchical structure of content in this application example. As shown in FIG. 16, the lower layer 603 is a layer that displays thumbnail list images, and the upper layer 601 is a layer that displays an image in which a keyword group is described, and an adjustment layer is provided between the lower layer 603 and the upper layer 601. 602 is provided.

  FIG. 17 is a diagram illustrating a state in which contents are displayed with each layer superimposed. As shown in FIG. 17, the adjustment layer 602 is adjusted so that both the keyword group displayed on the upper layer 601 and the thumbnail list image displayed on the lower layer 603 are visible.

  In this state, when the user selects a keyword, the thumbnail list image displayed on the lower layer 603 is switched to a new image according to the selected keyword. For example, when the user selects the keyword 604 (holiday) with a remote controller or the like, a list of images related to holidays is displayed on the lower layer 603. At this time, the entire content is not updated, but only the thumbnail list image displayed in the lower layer 603 is switched to a new image. As described above, the user can view the thumbnail list image corresponding to the selected keyword while viewing the keyword group, and can continue to select the next keyword.

  FIG. 18A and FIG. 18B are diagrams showing a state in which either the upper layer 601 or the lower layer 603 is preferentially displayed by adjusting the transmittance of the adjustment layer 602 by the user's operation. As shown in FIG. 18A, when the transmittance of the adjustment layer 602 is set high, the thumbnail list images displayed on the lower layer 603 are preferentially displayed, making it easier to see. Conversely, as shown in FIG. 18B, when the transmittance of the adjustment layer 602 is set low, the thumbnail list image displayed on the lower layer 603 becomes difficult to see. Instead, the keyword group displayed on the upper layer 601 is displayed. It becomes easier to see.

(Application example 2 VOD)
FIG. 19 is a diagram showing a state in which the thumbnail list and the VOD content corresponding to the selected thumbnail are displayed in a superimposed manner on the content display apparatus 1 according to the present embodiment.

  As shown in FIG. 19, since the thumbnail list displayed in the upper layer, the VOD content 612 displayed in the lower layer, and the adjustment layer provided behind each thumbnail are displayed in an overlapping manner, the thumbnail list and the VOD content are displayed. Both are visible. Here, the adjustment layer provided behind the thumbnail 610 is the adjustment layer 611. In FIG. 19, the adjustment layer is not rectangular, and a frame line is provided in the outer extension of the adjustment layer. A description example for realizing the adjustment layer will be described later.

  Until the user selects the VOD content by looking at the thumbnail list, the user's viewpoint is poured into the thumbnail list. Therefore, the transmittance of the adjustment layer is set low until the user selects the VOD content. As a result, the upper thumbnail list is preferentially displayed and is easy to see.

  After the user selects the VOD content with the remote controller or the like, the user's viewpoint is poured into the selected VOD content, that is, the lower layer. Therefore, when the user performs an operation of selecting VOD content with a remote controller or the like, the transmittance of the adjustment layer is set high. As a result, the lower layer VOD content is preferentially displayed so that it can be easily seen.

  When the user selects the VOD content again by looking at the thumbnail list, the transparency of the adjustment layer is set low again so that the upper thumbnail list is preferentially displayed for easy viewing.

  Next, a description example of content data for realizing the above superposition will be described. FIG. 20 is a diagram illustrating a specific description example of the content data describing the upper layer attribute information 310d, the adjustment layer attribute information 320d, and the script 340d for realizing the superposition illustrated in FIG.

  In this example, a plurality of images are described in the upper layer attribute information 310d. That is, the images “FW001.jpg”, “FW002.jpg”, and “FW003.jpg” are described as thumbnails. The adjustment layer attribute information 320d describes an adjustment layer located behind each image. That is, an adjustment layer having adjustment layer IDs “rect1”, “rect2”, and “rect3” is described.

  In this example, the border of the adjustment layer is described as being provided with a frame line. That is, the border color is described by the attribute information “stroke”, and the thickness of the border line is described by the attribute information “stroke-width”. Further, the degree of bending of the rectangular corner is described by the attribute information “rx” and “ry”. Since the attribute information is added and described, for example, like the adjustment layer 611, a frame line is provided on the outer periphery of the adjustment layer, and the corners of the rectangle are rounded.

  Next, the script 343d describes that the transmittance of the adjustment layer is adjusted. By executing the script 343d, the transmittance of the adjustment layer is adjusted. Here, the value of the turbidity 324 of the adjustment layer having the value before increasing the number of “rect” of the adjustment layer ID by one as the adjustment layer ID is set to “0.1”, and the number of “rect” of the adjustment layer ID Describes a function 343d (moveFocus ()) that sets the value of the turbidity 324 of the adjustment layer having the value obtained by incrementing by one as the adjustment layer ID to "0.7".

  When the user moves the focus by pressing the right button of the remote control or the like (assuming that an “ON_RIGHT” event occurs as an internal event at this time), a function that calls the function 343d using the operation as an event 342d (selectEvent ()) is described. Thereby, according to the operation of the remote controller or the like by the user, the value of the turbidity 324 of the adjustment layer located behind the focus before movement is set to “0.1”, and the adjustment layer located behind the focus after movement The value of turbidity 324 is set to “0.7”. As a result, the turbidity of the adjustment layer at the focus position increases, and as a result, the thumbnail at the focus position becomes easy to see.

  In the above, the function 343d describes only when the turbidity 324 value is set to “0.1” or “0.7”, and the function 342d displays an internal event that the right button of the remote control or the like is pressed. Although only the case where the function 343d is called as an event has been described, the present invention is not limited to this, and a function for setting an appropriate value as the turbidity 324 according to the event may be described.

(Application example 3 TV program guide)
FIG. 21 is a diagram showing a state in which the television program guide and the broadcast video corresponding to the selected television program are superimposed and displayed on the content display device 1 according to the present embodiment.

  As shown in FIG. 21, since the television program guide displayed on the upper layer, the broadcast video displayed on the lower layer, and the adjustment layer are displayed in an overlapping manner, both the television program guide and the broadcast video can be seen. It has become. When the user selects a program with a remote controller or the like, a broadcast video corresponding to the selected program is displayed in the lower layer. Therefore, the user can view the video of the selected program while checking the program on the television program guide.

  FIG. 22 is a diagram illustrating an example in which an adjustment layer is provided for each program frame of the television program guide. That is, an adjustment layer having the same size as each of the program frames 701 to 718 is provided behind the program frames 701 to 718. In the following, a case where the program “Morning Fishing Port” at 7 o'clock in 10 channels is selected will be described as an example. In this case, only the transmittance of the adjustment layer located behind the selected program frame 701 is set low, and the transmittances of the adjustment layers located behind the other program frames 702 to 718 are all set high. As a result, as shown in FIG. 22, only the selected program frame “morning fishing port” becomes easy to see (that is, it is in a state where it is understood that it has been selected). And other program frames become difficult to see. Therefore, only the selected program frame and its broadcast video are displayed for easy viewing.

  Next, a description example of content data for realizing the above superposition will be described. FIG. 23 is a diagram illustrating a specific description example of the content data describing the upper layer attribute information 310e, the adjustment layer attribute information 320e, and the script 340e for realizing the superposition illustrated in FIG.

  In this example, the upper layer attribute information 310e describes a character string to be displayed in the program frame of the television program guide. In this example, the character string “7:10 Good morning book (hereinafter omitted)” displayed in the program frame 702 and the character string “7:00 German” displayed in the program frame 703 are described. . Descriptions of character strings to be displayed in other program frames are omitted.

  The adjustment layer attribute information 320e describes an adjustment layer located behind each program frame. That is, an adjustment layer having an adjustment layer ID of “blue1” is described as an adjustment layer corresponding to the program frame 702, and an adjustment layer having an adjustment layer ID of “blue2” is described as an adjustment layer corresponding to the program frame 703. Yes. The description of the adjustment layer corresponding to other program frames is omitted.

  Next, the script 343e describes that the transmittance of the adjustment layer is adjusted. By executing the script 343e, the transmittance of the adjustment layer is adjusted. Here, the value of the turbidity 324 of the adjustment layer having the value before increasing the number of “blue” of the adjustment layer ID by one as the adjustment layer ID is set to “0.1”, and the number of “blue” of the adjustment layer ID A function 343e (moveFocus ()) is described that sets the value of the turbidity 324 of the adjustment layer having the value obtained by incrementing by one as the adjustment layer ID to “0.7”.

  Then, when the user moves the focus by pressing the right button of the remote controller or the like (assuming that an “ON_RIGHT” event occurs as an internal event at this time), a function that calls the function 343e with the operation as an event 342e (selectEvent ()) is described. Thereby, according to the operation of the remote controller or the like by the user, the value of the turbidity 324 of the adjustment layer located behind the focus before movement is set to “0.1”, and the adjustment layer located behind the focus after movement The value of turbidity 324 is set to “0.7”. As a result, the turbidity of the adjustment layer at the focus position increases, and as a result, the character string of the program frame at the focus position becomes easy to see.

  In the above, the function 343e describes only the case where the value of the turbidity 324 is set to “0.1” or “0.7”, and the function 342e is caused by an internal event that the right button of the remote control or the like is pressed. Although only the case of calling the function 343e is described, the present invention is not limited to this, and a function for setting appropriate attribute information according to an event may be described.

  In the above, an example in which an adjustment layer corresponding to each program frame of the TV program guide is provided has been described, but in the following, only one adjustment layer is provided for the TV program guide, and the adjustment layer is adjusted according to the user's operation. An example of moving the layer will be described.

  FIG. 24 is a diagram showing a description example of content data describing upper layer attribute information 310f, adjustment layer attribute information 320f, and script 340f, in which only one adjustment layer is superimposed on the upper television program guide.

  Since the upper layer attribute information 310f is the same as the upper layer attribute information 310e, description thereof is omitted. Next, only one adjustment layer is described in the adjustment layer attribute information 320f. That is, an adjustment layer having an adjustment layer ID of “blue” and a value of turbidity 324 of “0.7” is described.

  Next, the script 343f describes that the display position of the adjustment layer is adjusted. By executing the script 343f, the display position of the adjustment layer is adjusted. Here, a function 343f (moveFocus ()) is described that shifts the value of the starting point coordinates of the position information 322 of the adjustment layer to the right by the width of the program frame (here, 400 points).

  When the user moves the focus by pressing the right button of the remote controller or the like (assuming that an “ON_RIGHT” event occurs as an internal event at this time), a function that calls the function 343f using the operation as an event 342f (selectEvent ()) is described. Accordingly, the value of the position information 322 is changed so that the adjustment layer is positioned behind the focus after movement in accordance with the operation of the remote controller or the like by the user. Therefore, an adjustment layer having a turbidity 324 value of “0.7” always exists behind the focused program frame, and as a result, the character string of the program frame at the focused position can be easily seen.

(Application example 4 OSD application)
FIG. 25 is a diagram illustrating a state in which a plurality of OSD applications and broadcast video are superimposed and displayed on the content display device 1 according to the present embodiment.

  As shown in FIG. 25, the upper layer on which the task message board application 801, the weather forecast application 802, and the e-mail applications 803 and 804 are displayed, the lower layer on which the broadcast video is displayed, and the adjustment layer are displayed in an overlapping manner. Therefore, both the OSD application and the broadcast video are visible. In this example, an adjustment layer is provided for each OSD application. That is, an adjustment layer having the same size as each of the OSD applications 801 to 804 is provided behind the OSD applications 801 to 804.

  When the user is watching the broadcast video, it is preferable to display the broadcast video with priority over the OSD application. Therefore, for example, when the user is watching a broadcast video and the OSD application is not focused, the transmittance of all the adjustment layers is set high. As a result, the broadcast video is preferentially displayed and is easy to see. Conversely, when the user focuses on using the OSD application, it is preferable to display the OSD application with priority over the broadcast video. Therefore, the transmittance of the adjustment layer located behind the focused OSD application is set low. As a result, only the OSD application is preferentially displayed and is easy to see.

  Next, an example in which the transmittance of the adjustment layer is adjusted using external data reception as an event will be described. For example, when an e-mail application is not preferentially displayed and an e-mail is received from an external mail server, the reception of the e-mail application is set as an event, and the transmittance of the adjustment layer located behind the e-mail application is set low. Thereby, the electronic mail application can be preferentially displayed so that it can be easily seen.

  Next, a case where the user moves the display position of the OSD application or changes the size will be described. In this case, it is necessary to move or change the display position of the adjustment layer located behind the OSD application. Therefore, the attribute information regarding the position information of the adjustment layer must be changed. At this time, it is checked whether the attribute information can be changed by the content display device 1 or only by the content data providing device 2. If it can be changed by the content display device 1, it is changed by the attribute information changing unit 12. On the other hand, if it can be changed only by the content data providing apparatus 2, a content transmission request is transmitted from the content / attribute information requesting unit 15, and the content data regenerated by the content data providing apparatus 2 is received and displayed.

  Note that the transmittance of the adjustment layer corresponding to each OSD application can be set in advance based on the instruction information 5.

(Application example 5 broadcast receiving mobile phone)
FIG. 26A and FIG. 26B are diagrams showing a state in which a calendar and a ToDo memo are superimposed and displayed on the standby screen of the mobile phone as the content display device 1 according to the present embodiment.

  Since the upper layer on which the ToDo memo 901 is displayed, the lower layer on which the calendar is displayed, and the adjustment layer are displayed in an overlapping manner, both the ToDo memo 901 and the calendar are visible. As shown in FIG. 26 (a), when the transmittance of the adjustment layer located behind the ToDo memo 901 is set high, the calendar is preferentially displayed and becomes easier to see. On the other hand, as shown in FIG. 26B, when the transmittance of the adjustment layer is set low, the calendar becomes difficult to see, and instead, the ToDo memo 901 becomes easier to see.

  Next, FIG. 27A to FIG. 27C are diagrams illustrating a state in which a television screen and a menu are displayed in a superimposed manner on the mobile phone as the content display device 1 according to the present embodiment.

  On the screen shown in FIG. 27A, a user is watching a television broadcast. Then, for example, when the user presses the channel selection key with the remote controller, a television broadcast corresponding to the selected channel can be viewed as shown in FIG. However, when the user presses a key other than channel selection with the remote controller, a menu image 902 is displayed on the broadcast video as shown in FIG. The user can select a desired menu from the menu image 902. In FIG. 27C, since the upper layer on which the menu image 902 is displayed, the lower layer on which the broadcast video is displayed, and the adjustment layer are displayed in an overlapping manner, both the menu image 902 and the broadcast video can be seen. It is in a state. If the transmittance of the adjustment layer located behind the menu image 902 is set high, the broadcast video is preferentially displayed and is easier to see. On the other hand, if the transmittance of the adjustment layer is set low, the broadcast video becomes difficult to see, and instead, the menu image 902 becomes more visible.

(Application example 6 electronic newspaper)
FIG. 28A and FIG. 28B are views showing a state in which the genre list menu of newspaper articles and the newspaper articles for each genre are displayed superimposed on the content display device 1 according to the present embodiment. is there.

  As shown in FIG. 28A and FIG. 28B, the upper layer in which the genre list menu is displayed, the lower layer in which articles for each genre are displayed, and the adjustment layer are displayed in an overlapping manner. Both menus and articles are visible.

  Until the user selects a genre to read from the menu, the user's viewpoint is poured into the menu. Therefore, as shown in FIG. 28A, the transmittance of the adjustment layer is set low until the user selects a genre. This makes it easier to see the upper menu.

  Then, after the user selects a genre that he / she wants to read with the remote controller or the like, the user's viewpoint is poured into the article of the selected genre, that is, the lower layer. Therefore, when the user performs an operation of selecting a genre to be read with a remote controller or the like, the transmittance of the adjustment layer is set high as shown in FIG. This makes it easier to see the underlying article.

  When the user selects a genre that he / she wants to read from the menu again, the upper layer menu becomes more visible by setting the transmittance of the adjustment layer low again.

  Next, FIG. 29A to FIG. 29D are diagrams showing a state in which newspaper articles are highlighted on a line basis by applying the content display processing method according to the present embodiment.

  In a newspaper article, if the line currently being read is highlighted, it is easy for the user to read. In addition, when the user distracts from the newspaper article and reads the newspaper article again, if the highlight is displayed, the user can easily grasp how far the article has been read.

  FIG. 29A is a diagram showing a state in which the first line is highlighted when the user is reading the first line of a newspaper article. In this content, as shown in FIG. 29B, the lower layer where the newspaper article is displayed and the adjustment layers 1003 to 1010 provided for each row of the newspaper article are displayed so as to overlap each other. In this example, there is no upper layer.

  When the user is reading the first line of a newspaper article, the transmittance of the adjustment layer 1003 is set high, and the transmittance of the adjustment layers 1004 to 1010 is set low. As a result, only the first line appears to be highlighted.

  Next, FIG. 29C is a diagram showing a state in which the fifth line is highlighted when the user reads the newspaper article and reads the fifth line of the newspaper article. At this time, as shown in FIG. 29 (d), the transmittance of the adjustment layer 1007 is set high, and the transmittances of the adjustment layers 1003 to 1006 and 1008 to 1010 are set low. As a result, only the fifth line appears to be highlighted.

  Note that the transmittance of the adjustment layer is set as an event that the focus moves between lines. The focus may be moved manually by operating a remote controller or the like, or may be moved automatically to the next line at regular time intervals.

  In the above, an example in which an adjustment layer corresponding to each line of a newspaper article is provided has been described. However, in the following, only one adjustment layer is provided for a newspaper article, and the adjustment layer is moved according to a user operation. A description example of the case will be described.

  FIG. 30 is a diagram showing a description example of content data describing upper layer attribute information 310g, adjustment layer attribute information 320g, lower layer attribute information 330g, and script 340g, in which only one adjustment layer is superimposed on a newspaper article as an upper layer. It is.

  In this example, the uppermost attribute information 310g describes the rightmost character string “listed company 97% articles of incorporation change” in the newspaper article shown in FIG. 29A or 29C. Description of other character strings is omitted. In the lower layer attribute information 330g, “np4.jpg” is designated as an image for displaying the background of the newspaper article shown in FIG. 29 (a) or 29 (c).

  In the adjustment layer attribute information 320g, only one adjustment layer is described. That is, an adjustment layer having an adjustment layer ID of “blue” and a value of turbidity 324 of “0.5” is described.

  Next, the script 343g describes that the display position of the adjustment layer is adjusted. By executing the script 343g, the display position of the adjustment layer is adjusted. Here, a function 343g (moveFocus ()) is described that shifts the value of the starting point coordinate of the position information 322 of the adjustment layer to the left by one line of the article (50 points).

  A function 342 g (selectEvent ()) that calls the function 343 g is described by the “TIMER” event generated by the timer event generation unit 17. Thereby, for example, the value of the position information 322 of the adjustment layer is changed according to a timer event generated every second. Accordingly, since the adjustment layer having the turbidity 324 value of “0.7” moves to the left by one line every second, the highlighted line moves every second.

[Embodiment 2]
In the present embodiment, the value of the changed attribute information is not transmitted to the content data providing apparatus, but held in the content display apparatus, and when the content data 3 including the attribute information is acquired, A mode for setting a value will be described.

  The present embodiment will be described below with reference to FIGS. For convenience of explanation, members having the same functions as those shown in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

(Overall configuration of content display system)
A content display system 500A according to the present embodiment will be described with reference to FIG. FIG. 31 is a block diagram showing a configuration of a content display system 500A including a content display device 1A (content display processing device) and a content data providing device 2A according to the present embodiment.

  The content display device 1A is a client that is substantially the same as the content display device 1 described in the first exemplary embodiment. The content data providing apparatus 2A is a server apparatus that is substantially the same as the content data providing apparatus 2 described in the first embodiment. Further, the content display device 1A and the content data providing device 2A are communicably connected.

  Then, the content data providing apparatus 2A generates the content data 3 in response to the transmission request 4A from the content display apparatus 1A, and transmits the generated content data 3 to the content display apparatus 1A.

  The transmission of the content data 3 from the content data providing device 2A to the content display device 1A may use a broadcast wave or a communication network. The transmission of the transmission request 4A from the content display device 1A to the content data providing device 2A uses a communication network.

  Next, the transmission request 4A is transmitted when requesting transmission of the content data 3 managed by the content data providing apparatus 2A. The transmission request 4A may include, for example, 1) information capable of identifying the requested content data 3, and 2) information capable of identifying the content data 3 being displayed on the content display device 1A, and content display. It may include a pair with an event received by the device 1A. Then, the content data providing apparatus 2A that has received the transmission request 4 generates content data 3 based on the transmission request 4A.

  Note that the content data providing apparatus 2A may spontaneously transmit the new content data 3 to the content display apparatus 1A without receiving the transmission request 4A.

(Configuration of content display device)
Next, the configuration of the content display device 1A will be described with reference to FIG. FIG. 32 is a block diagram showing a configuration of content display apparatus 1A according to the present embodiment. As shown in FIG. 32, the content display device 1A includes a control unit 10A, a storage unit 20, a communication unit 30, a display unit 40, an event information receiving unit 50, an input operation unit 60, and an input / output control unit 70. The

  The control unit 10A includes substantially the same members as the control unit 10 of the first embodiment, but includes a content / attribute information analysis unit 11A instead of the content / attribute information analysis unit 11. Further, an attribute information changing unit 12A is provided instead of the attribute information changing unit 12. Further, instead of the event analysis unit 14, an event analysis unit 14A is provided. Further, instead of the content / attribute information request unit 15, a content / attribute information request unit 15A is provided. Further, instead of the instruction information generation unit 16, an attribute information change determination unit 16A is provided.

  Similarly to the content / attribute information analysis unit 11, the content / attribute information analysis unit 11 </ b> A analyzes the received content data 3 and acquires content and attribute information included in the content data 3. However, unlike the content / attribute information analysis unit 11, the acquired attribute information is transmitted to the attribute information change determination unit 16A described later.

  Similarly to the attribute information changing unit 12, the attribute information changing unit 12A changes the upper layer attribute information 3a and the adjustment layer attribute information 3b. However, unlike the attribute information change unit 12, a change instruction is also received from an attribute information change determination unit 16A described later.

  Similarly to the event analysis unit 14, the event analysis unit 14A analyzes signals from the event information reception unit 50, the input operation unit 60, a timer event generation unit 17 and a reception unit 31 described later. However, unlike the event analysis unit 14, the received event signal is transmitted to the attribute information change determination unit 16A described later.

  Similarly to the content / attribute information request unit 15, the content / attribute information request unit 15A transmits a transmission request 4A to the content data providing apparatus 2A. However, unlike the content / attribute information request unit 15, the instruction information 5 is not transmitted. The transmission request 4A to be transmitted instead of the transmission request 4 includes 1) a format in which the requested content data 3 is directly specified by identifiable information, and 2) content data being displayed on the content display device 1A. There is a format that does not directly specify the requested content data 3 by designating a set of information that can identify 3 and an event received by the event analysis unit 14. The format that does not directly specify the requested content data 3 is not limited to the above.

  The attribute information change determination unit 16A determines whether there is predetermined predetermined identification information from the attribute information received from the content / attribute information request unit 15A. When there is the predetermined identification information, the value of the attribute information to be changed associated with the identification information is acquired from the instruction information storage unit 23. Then, an instruction to change the attribute information with the acquired value is transmitted to the attribute information changing unit 12A. The determination process may be performed not at the timing when the attribute information is received from the content / attribute information request unit 15A but at the timing when a predetermined event signal is received from the event analysis unit 14A.

(Configuration of content data providing device)
Next, the configuration of the content data providing apparatus 2A will be described with reference to FIG. FIG. 33 is a block diagram showing a part of the configuration of the content data providing apparatus 2A according to the present embodiment. Content data providing apparatus 2A has substantially the same configuration as content data providing apparatus 2 in the first embodiment. However, the content data providing apparatus 2 is different from the content data providing apparatus 2 in that a reception data analysis unit 211A is provided instead of the reception data analysis unit 211. FIG. 33 shows only the input / output of the reception data analysis unit 211A.

  The reception data analysis unit 211A includes a reception content analysis unit 212, a content data identification unit 217A, and an attribute information change determination unit 213.

  When the transmission request 4A does not specify information specifying the content data 3 to be transmitted, the content data specifying unit 217A performs processing for specifying the content data 3 to be transmitted. For example, when the transmission request 4A specifies a set of information that can identify the content data 3 being displayed on the content display device 1A and the event received by the event analysis unit 14, the content data specifying unit 217A The control information in the attribute information included in the content data 3 is acquired from the storage unit 220, and the new content data 3 to be displayed when the event is received based on the information described in the acquired control information is specified. . Then, information that can identify the specified content data 3 is transmitted to the content data generation unit 215 and the attribute information change determination unit 213.

(Processing flow in content display system)
In order to start browsing of content, the content display device 1A requests the content data providing device 2A to transmit the content data 3, acquires the content data 3, and displays the acquired content data 3. Since this is the same as the process P1 described in FIG. However, the content display apparatus 1A transmits the transmission request 4A instead of the transmission request 4.

  Similarly, a process in which the content display device 1A updates the content data 3 by an event (user operation, timer processing, notification from an external server, etc.) received by the content display device 1A while the user is browsing the content. Is the same as the process P2 described in FIG. However, the content display apparatus 1A transmits the transmission request 4A instead of the transmission request 4.

  Here, the details of the content data generation process in the present embodiment are slightly different from the details of the content data generation process in steps S4 and S12 in the first embodiment, and details of the content data update process in the present embodiment are as follows. This is slightly different from the details of the content data update process in step S10 in the first embodiment, and will be described below.

(Details of content data generation processing)
Next, the procedure of content data generation processing in the present embodiment will be described with reference to FIG. FIG. 34 is a flowchart showing a part of the flow of content data generation processing.

  First, the received content analysis unit 212 analyzes the transmission request 4A received from the content display device 1A (S120). Then, it is checked whether or not the content data 3 to be transmitted is specified in the transmission request 4A (S121). If content data 3 to be transmitted is not designated (NO in S121), content data 3 to be transmitted is identified based on the data received by content data identifying unit 217A (S122).

  Then, after step S122 and in the case of YES at step S121, the processing is the same as that after step S21 in the flowchart described in FIG.

(Details of content data update processing)
Next, the procedure of content data update processing in the present embodiment will be described with reference to FIG. FIG. 35 is a flowchart showing the flow of content data processing.

  Steps S130 to S134 are the same as steps S30 to S34 in FIG.

  If it is determined in step S131 that acquisition of new content or attribute information is requested (YES in S131), or the attribute information changed in step S133 can be changed only by the content data providing apparatus 2A. (NO in S133), the content / attribute information requesting unit 15A transmits a transmission request 4A to the content data providing apparatus 2A (S135). When a combination of information that can identify the content data 3 being displayed on the content display device 1A and an event accepted by the event analysis unit 14 is designated as the transmission request 4A, the event information is also transmitted (S135). .

  Then, after transmitting the transmission request 4A, the content data 3 transmitted from the content data providing apparatus 2A is received (S136).

  Then, the attribute information change determination unit 16A determines whether there is predetermined identification information in the attribute information of the received content data 3 (S137). When the identification information is present (YES in S137), the attribute information change determination unit 16A acquires the value of the attribute information to be changed associated with the identification information from the instruction information storage unit 23 (S138). Then, an instruction to change the attribute information with the acquired value is transmitted to the attribute information changing unit 12A, and the attribute information changing unit 12A updates the content data 3 in accordance with the changing instruction (S139), and the content updating process is terminated. .

  If there is no predetermined predetermined identification information in the received attribute information of content data 3 (NO in S137), the content update process is terminated.

(Information included in the transmission request)
Next, the information included in the transmission request 4A will be described with an example with reference to FIGS. 36 (a) and 36 (b). FIGS. 36A and 36B are diagrams schematically illustrating an example of information included in the transmission request 4A.

  FIG. 36A shows an example in which the requested content data is directly specified. Therefore, the transmission request 4A includes an ID 441 (contents) that identifies the requested content. An ID “display2” is designated as the ID 441.

  FIG. 36B shows an example in which the requested content data is not directly specified. Therefore, the transmission request 4A includes an ID 451 (contents) for identifying content currently displayed on the content display device 1A, and a user operation 452 (operation) for the content being displayed. An ID “display1” is designated as the ID 451, and an operation “ON_LEFT” (the user has pressed the left button or the like on the remote control) is designated as the user operation 452. Accordingly, the content data specifying unit 217A of the content data providing apparatus 2A specifies the content data 3 to be displayed as the content data 3 to be generated when the left button or the like is pressed for the content “display1”.

  Note that the information included in the transmission request 4A is not limited to the above. For example, instead of the user operation 452, another event may be designated.

(Example)
Next, the value of the changed attribute information is not transmitted to the content data providing device 2A, but is held in the content display device 1A, and the content data 3 including the attribute information is acquired. A description example of a script for setting up will be described.

  FIG. 37 is a diagram schematically showing the script 340j as the above description example for adjusting the transmittance of the adjustment layer. By executing the script 340j, the transmittance of the adjustment layer is adjusted. In the script 340j, a function 341j (setOpacity ()), a function 342j (selectEvent ()), and a function 343j (setUserSetting (param)) are described.

  The function 341j (setOpacity ()) sets the opacity 324 (fill-opacity) value of the adjustment layer having the adjustment layer ID “blue” to the value of “opvalue”.

  The function 342j (selectEvent ()) accepts the operation as an event and calls the readUserParam function when the script 340j is activated (at this time, an “ON_LOAD” event is generated as an internal event). . Then, according to the readUserParam function, the attribute information change determination unit 16A acquires attribute information corresponding to a predetermined identifier “blueOpacity” from the instruction information storage unit 23. Then, if the acquisition is possible, “opvalue” is replaced with the acquired value, and a function 341j (setOpacity ()) is called. Here, the predetermined identifier is not limited to “blueOpacity”.

  As described above, at the time of starting the content including the script 340j, the value of the turbidity 324 of the adjustment layer having the adjustment layer ID “blue” is acquired from the instruction information storage unit 23, and the attribute information change unit 12A acquires the acquired attribute information. Can be set. In addition, when it cannot acquire from this instruction information storage part 23, initial value "0.2" of "opvalue" is used as a setting value of attribute information.

  Since the readUserParam function is a library function that is incorporated in the script description language in advance, it is not defined here, but is a function that acquires attribute information corresponding to an argument from the instruction information storage unit 23.

  Further, the function 342j (selectEvent ()) is displayed when the user presses a determination button such as a remote control (at this time, an “ON_ENTER” event is generated as an internal event). ).

  The function 343j (setUserSetting (param)) is a function for storing “param” in the storage unit 20 as the value of the attribute information corresponding to the identifier “blueOpacity”. In this example, the function 342j is called by the function 342j with “0.4” as an argument. In this case, the storage unit 20 indicates that the value of the attribute information corresponding to the identifier information “blueOpacity” is “0.4”. Save to.

  In the adjustment layer attribute information 320j, the adjustment layer ID 321 (id) is “blue”, and the position information 322 includes the adjustment layer start point coordinates (x, y) of “0, 0”, the height of the adjustment layer ( height) is “1000”, the adjustment layer width is “1920”, the adjustment layer color information 323 (fill) is “# 000000” (white), and the adjustment layer turbidity 324 (fill- (opacity) is described as “0.5”. In the script 340j, descriptions of the upper layer attribute information and the lower layer attribute information are omitted.

  Next, FIG. 38 is a diagram schematically showing the script 340k as the above description example for adjusting the transmittance of the adjustment layer. By executing the script 340k, the transmittance of the adjustment layer is adjusted. The script 340k describes the adjustment layer attribute information 320k.

  In the adjustment layer attribute information 320k, the adjustment layer ID 321 (id) is “blue”, and as the position information 322, the start point coordinates (x, y) of the adjustment layer are “0, 0”, and the height of the adjustment layer (height) Is “1000”, the width of the adjustment layer is “1920”, and the color information 323 (fill) of the adjustment layer is “# 000000” (white).

  Then, “@@ _ blueOpacity_: default = 0.2 _ @@” is described as the turbidity 324 (fill-opacity) of the adjustment layer. “@@ _” and “_ @@” are predetermined character strings, and indicate that the attribute information corresponding to the identifier “blueOpacity” existing between the character strings is to be changed. However, the predetermined character string is not limited to the above, and the identifier is not limited to “blueOpacity”.

  Therefore, when the content data 3 including the script 340k is received, the attribute information change determination unit 16A acquires the attribute information corresponding to the identifier “blueOpacity” from the instruction information storage unit 23. If the acquisition is possible, the attribute information changing unit 12A sets the acquired attribute information. In addition, when it cannot acquire from this instruction information storage part 23, default value "0.2" is used as a setting value of attribute information.

  Note that the function 342k (selectEvent ()) is the function 343k (setUserSetting (param)) when the user presses a decision button such as a remote controller (at this time, an “ON_ENTER” event occurs as an internal event). ). The function 343k (setUserSetting (param)) is a function for saving “param” in the storage unit 20 as the value of the attribute information corresponding to the identifier “blueOpacity”, similar to the function 343j.

  In the script 340k, descriptions of the upper layer attribute information and the lower layer attribute information are omitted.

(Additional notes)
The content display device according to the present invention may be, for example, a television, a mobile phone, a PC, a PDA, a set top box (STB), or the like as long as the device can display content. In particular, the content display device of the present specification is suitable for a television that displays content data received from another server device.

  In addition, the content data providing apparatus according to the present invention may be a server apparatus that can generate content data in response to a content data transmission request and transmit the content data to a request source.

  Further, the content managed by the content data providing device according to the present invention and the content displayed by the content display device may be text data, audio data, image data, video data, an application, or a combination thereof. Moreover, it is not limited to a specific format.

  Finally, the control units 10, 10 A, and 210 may be realized by software using a CPU or may be configured by hardware logic. When realized by software, the content display devices 1 and 1A and the content data providing devices 2 and 2A include a CPU that executes instructions of a control program that realizes each function, a ROM that stores the program, and a RAM that expands the program And a storage device (recording medium) such as a memory for storing the program and various data. An object of the present invention is to provide program codes (execution format program, intermediate code program, source program) of control programs for the content display devices 1 and 1A and the content data providing devices 2 and 2A, which are software for realizing the functions described above. The recording medium recorded so as to be readable by the computer is supplied to the content display devices 1 and 1A and the content data providing devices 2 and 2A, and the computers (or CPUs and the like in the content display devices 1 and 1A and the content data providing devices 2 and 2A) are supplied. This can also be achieved by reading and executing the program code recorded on the recording medium by the MPU).

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. Card system such as IC card, IC card (including memory card) / optical card, or semiconductor memory system such as mask ROM / EPROM / EEPROM / flash ROM.

  Further, the content display devices 1 and 1A and the content data providing devices 2 and 2A may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Further, the transmission medium constituting the communication network is not particularly limited, and for example, an infrared ray such as IrDA, Bluetooth (Bluetooth) (IEEE1394 cable, USB cable, power line carrier, cable TV line, telephone line, ADSL line, etc.) (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  The present invention can be applied to a content display device that displays content, and in particular, is suitably used for a content display device that changes the visibility of content superimposed and displayed in accordance with a user operation. can do.

It is a block diagram which shows the principal part structure of the content display apparatus in the content display system shown in FIG. It is a schematic diagram which shows the display data of the content data displayed with the content display system shown in FIG. It is a block diagram which shows the principal part structure of the content display system which concerns on embodiment of this invention. It is a block diagram which shows the principal part structure of the content data provision apparatus in the content display system shown in FIG. 4 is a flowchart showing a flow of processing in which a content display device in the content display system shown in FIG. 3 makes a content transmission request to a content data providing device and displays / updates content data. It is a flowchart which shows the flow of the process which the content data provision apparatus in the content display system shown in FIG. 3 produces | generates content data. It is a flowchart which shows the flow of the process in which the content display apparatus in the content display system shown in FIG. 3 updates content data. FIG. 8A is a schematic diagram showing the data structure of the adjustment layer of content data handled in the content display system shown in FIG. FIG. 8B is an explanatory diagram illustrating a description example of the adjustment layer having the data structure illustrated in FIG. FIG. 9A is a schematic diagram showing a data structure when the upper layer, the adjustment layer, and the lower layer of the content data handled in the content display system shown in FIG. 3 are described together. FIG. 9B is an explanatory diagram showing a description example of content data having the data structure shown in FIG. In the description example of the content data shown in FIG. 9B, the description example of the content data in which the script for adjusting the transmittance of the adjustment layer is replaced with the script for adjusting the color information of the adjustment layer. It is explanatory drawing shown. FIG. 9B is a modification of the description example of the content data, and when the region where the adjustment layer exists is clicked with a mouse or the like, the lower layer is adjusted by adjusting the turbidity value of the adjustment layer. It is explanatory drawing which shows the example of a description made difficult to see. FIG. 9B is a modified example of the description example of the content data, and when the region where the adjustment layer exists is operated by a remote controller or the like, the turbidity value of the adjustment layer other than the adjustment layer is adjusted. It is explanatory drawing which shows the example of description which makes it difficult to see a lower layer by doing. FIG. 13A is a schematic diagram showing a data structure in the case where the upper layer and the adjustment layer of the content data handled by the content display system shown in FIG. 3 are described together. FIG. 13B is an explanatory diagram showing a description example of content data having the data structure shown in FIG. It is a figure which shows typically the example of a description which acquires only attribute information from the content data provision apparatus shown in FIG. 4, and adjusts the value of the turbidity of an adjustment layer. FIG. 15A is a schematic diagram showing an example of a data structure of instruction information handled in the content display system shown in FIG. FIG. 15B is a schematic diagram showing another example of the data structure of the instruction information handled in the content display system shown in FIG. FIG. 4 is a diagram showing a hierarchical structure of content displayed by superimposing a keyword group and a thumbnail list image in the content display device in the content display system shown in FIG. 3. FIG. 4 is a diagram illustrating a state in which a keyword group and a thumbnail list image are superimposed and displayed on the content display device in the content display system illustrated in FIG. 3. FIG. 18A shows a state in which the thumbnail list image, which is the lower layer, is displayed in the content display device in the content display system shown in FIG. FIG. FIG. 18B shows a state in which the thumbnail list image that is the lower layer is displayed in an invisible manner in the content that is displayed by superimposing the keyword group and the thumbnail list image in the content display device in the content display system shown in FIG. FIG. FIG. 4 is a diagram showing a state in which a thumbnail list and a VOD content corresponding to a selected thumbnail are displayed in a superimposed manner in the content display device in the content display system shown in FIG. 3. It is explanatory drawing which shows the example of a description of the content data which implement | achieves the superimposition shown in FIG. It is a figure which shows a mode that the television program guide and the broadcast video corresponding to the selected television program were displayed on the content display apparatus in the content display system shown in FIG. In the content display device in the content display system shown in FIG. 3, an adjustment layer is provided for each program frame of the TV program guide when displaying the TV program guide and the broadcast video corresponding to the selected TV program in a superimposed manner. It is a figure which shows an example. It is explanatory drawing which shows the example of description of the content data which implement | achieves the superimposition shown in FIG. It is explanatory drawing which shows the other description example of the content data which implement | achieves the superimposition shown in FIG. It is a figure which shows a mode that the some OSD application and the broadcast image | video were superimposed and displayed in the content display apparatus in the content display system shown in FIG. FIG. 26A shows the ToDo memo, which is the upper layer, in the content that displays the calendar and the ToDo memo superimposed on the standby screen of the mobile phone as the content display device in the content display system shown in FIG. It is the figure which showed a mode that it displayed hard. FIG. 26B shows the ToDo memo, which is the upper layer, in the content that displays the calendar and the ToDo memo superimposed on the standby screen of the mobile phone as the content display device in the content display system shown in FIG. It is the figure which showed the mode that it displayed easily. FIG. 27 (a) displays a menu image that is an upper layer in a mobile phone as a content display device in the content display system shown in FIG. It is the figure which showed a mode. FIG. 27 (b) shows a case where the user presses the channel selection key with the remote controller in the content displayed on the mobile phone as the content display device in the content display system shown in FIG. FIG. FIG. 27 (c) displays an upper-level menu image so that it can be easily seen in the content that is displayed by superimposing the TV screen and the menu on the mobile phone as the content display device in the content display system shown in FIG. It is the figure which showed a mode. FIG. 28A shows the menu screen which is the upper layer in the content display apparatus in the content display system shown in FIG. FIG. FIG. 28B shows the menu screen that is the upper layer in the content display device in the content display system shown in FIG. FIG. FIG. 29A shows a state in which the first line of the newspaper article is highlighted in the content in which the newspaper article is highlighted on a line-by-line basis using the content display processing method in the content display system shown in FIG. FIG. FIG. 29B clearly shows the state of the adjustment layer that constitutes the content in FIG. FIG. 29 (c) highlights the fifth line of the newspaper article in the content in which the newspaper article is highlighted on a line-by-line basis using the content display processing method in the content display system shown in FIG. FIG. FIG. 29D clearly shows the state of the adjustment layer that constitutes the content in FIG. It is explanatory drawing which shows the example of description of the content data which implement | achieve Fig.29 (a) and FIG.29 (c). It is a block diagram which shows the principal part structure of the content display system which concerns on other embodiment of this invention. It is a block diagram which shows the principal part structure of the content display apparatus in the content display system shown in FIG. It is a block diagram which shows the structure of a part of content data provision apparatus in the content display system shown in FIG. FIG. 32 is a flowchart showing a part of a process flow in which the content data providing apparatus in the content display system shown in FIG. 31 generates content data. It is a flowchart which shows the flow of a process in which the content display apparatus in the content display system shown in FIG. 31 updates content data. FIG. 36A is a diagram schematically illustrating an example of information included in the transmission request in the content display system illustrated in FIG. FIG. 36B is a diagram schematically illustrating another example of information included in the transmission request in the content display system illustrated in FIG. In the content display system shown in FIG. 31, the value of the attribute information after the change is not transmitted to the content data providing device, but held in the content display device, and when the content data including the attribute information is acquired, It is a figure which shows typically the example of a description of the script for setting the value after a change. In the content display system shown in FIG. 31, the value of the attribute information after the change is not transmitted to the content data providing device, but held in the content display device, and when the content data including the attribute information is acquired, It is a figure which shows typically the other description example of the script for setting the value after a change.

Explanation of symbols

1. Content display device (content display processing device)
1A content display device (content display processing device)
2 Content Data Providing Device 2A Content Data Providing Device 3 Content Data 4 Transmission Request 4A Transmission Request 5 Instruction Information 11 Content / Attribute Information Analysis Unit 11A Content / Attribute Information Analysis Unit 12 Attribute Information Change Unit (Attribute Information Change Unit)
12A attribute information changing unit (attribute information setting means)
13 Content data composition unit (content data display processing means)
14 Event analysis unit (event detection means)
14A Event analysis unit (event detection means)
15 Content / attribute information request section (content data request means, display attribute information request means)
15A Content / attribute information request section (content data request means, display attribute information request means)
16 instruction information generation unit 16A attribute information change determination unit 17 timer event generation unit (timer event generation means)
21 content storage unit 22 attribute information storage unit 23 instruction information storage unit 50 event information reception unit 60 input operation unit 101 lower layer (first layer)
102 Control layer (second layer)
103 Upper layer (second layer)
211 reception data analysis unit 211A reception data analysis unit 212 reception content analysis unit 213 attribute information change determination unit 214 attribute information change setting unit 215 content data generation unit 217A content data specification unit 320 adjustment layer attribute information (display attribute information)
322 Position information 323 Color information 324 Turbidity 500 Content display system 500A Content display system

Claims (20)

A content display processing device that displays content data including a first layer and a second layer for which display attribute information is set on a display unit,
Content data display processing means for superimposing the first layer and the second layer displayed on the basis of the display attribute information to display on the display unit;
Event detecting means for detecting a predetermined event,
When the event detection unit detects the predetermined event, the content data display processing unit includes the first layer and the second layer generated based on the display attribute information after being changed to a predetermined value. A content display processing device characterized by being displayed in a superimposed manner. Receiving the content data after changing the display attribute information to the predetermined value from a content data providing device that provides the content data;
2. The content display processing apparatus according to claim 1, wherein the content data display processing means displays the first layer and the second layer included in the received content data in a superimposed manner.   3. The content display processing device according to claim 2, further comprising content data requesting means for requesting the content data after changing the display attribute information to the predetermined value with respect to the content data providing device.   4. The content according to claim 3, wherein when the content data requesting unit makes the request, instruction information for instructing to change the display attribute information to the predetermined value is transmitted to the content data providing apparatus. Display processing device. Further comprising attribute information changing means for changing the display attribute information,
Receiving the display attribute information after changing to the predetermined value from the content data providing device providing the content data;
The content data display processing means superimposes and displays the first layer and the second layer after the attribute information changing means has changed based on the received display attribute information. The content display processing device according to claim 1.   7. The content display processing apparatus according to claim 6, further comprising display attribute information requesting means for requesting the display attribute information after the content data providing apparatus is changed to the predetermined value.   When the display attribute information requesting unit makes the request, the content data providing apparatus transmits instruction information used to change the display attribute information to the predetermined value to the content data providing apparatus. The content display processing device according to claim 6. Attribute information setting means for setting a predetermined value held by the own device in the display attribute information of the second layer included in the content data;
2. The content display processing apparatus according to claim 1, wherein the content data display processing unit displays the first layer and the second layer after the setting in a superimposed manner.   9. The content display processing apparatus according to claim 1, wherein the event detection unit detects that the first predetermined signal is received from an external apparatus as the predetermined event.   The content display processing device according to claim 1, wherein the event detection unit detects, as the predetermined event, that a user has performed a predetermined operation on the first layer. . Based on the control information included in the content data, further comprising a timer event generating means for generating a second predetermined signal every predetermined period,
The content display processing device according to claim 1, wherein the event detection unit detects the second predetermined signal as the predetermined event.   A content data providing apparatus for transmitting content data to be displayed on the content display processing apparatus according to any one of claims 1 to 11.   5. Content data including the second layer after receiving the instruction information transmitted from the content display processing device according to claim 4, changing the display attribute information to the predetermined value based on the instruction information, and Is transmitted to the content display processing device.   8. The instruction information transmitted from the content display processing device according to claim 7 is received, the display attribute information is changed to the predetermined value based on the instruction information, and the display attribute information after the change is changed to the content display process. An apparatus for providing content data, characterized by being transmitted to the apparatus.   A content display system comprising the content display processing device according to claim 1 and the content data providing device according to claim 12. When the content display processing device detects a predetermined event, the first layer and the second layer after changing the display attribute information are included. A data structure of content data to be displayed with the layer superimposed,
A data structure of content data, comprising an area for storing attribute setting information for specifying the display attribute information for each predetermined event. A content display processing method for displaying content data including a first layer and a second layer for which display attribute information is set on a display unit,
An event detection step for detecting a predetermined event;
A content data display processing step of superimposing the first layer and the second layer displayed based on the display attribute information to display on the display unit,
When the predetermined event is detected in the event detection step, in the content data display processing step, the first layer and the second layer generated based on the display attribute information after being changed to a predetermined value A content display processing method characterized by superimposing and displaying.   A program for operating the content display processing device according to any one of claims 1 to 11, wherein the program causes a computer to function as each of the means.   The program for operating the content data provision apparatus of any one of Claim 12 to 14, Comprising: The program for functioning a computer as said each means.   A computer-readable recording medium on which the program according to claim 18 or 19 is recorded.