JP3874111B2 - Data broadcasting system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a data broadcasting system, and more particularly to a data broadcasting system in which a broadcast receiver is connected to a network.
[0002]
[Prior art]
In recent years, not only transmitting moving images and voices as broadcasts, but also data broadcastings that send data and display character information and still images on a screen have become widespread. In such data broadcasting, the receiver is connected to a network such as a telephone line, and has a function of transmitting reception confirmation information, a receiver installation area, program purchase information, and the like to a broadcasting station.
[0003]
As a conventional example of the data broadcasting system as described above, the genre of the viewing program and the history of the function used are automatically stored in the receiver for the purpose of automatically creating a display screen suitable for the user's preference. A program that is often viewed by storing and updating and a frequently used function are displayed on the screen so as to stand out. As a result, it is less likely to miss a program of a genre that is often seen, and the burden on the user on the operation surface is reduced even when the receiver has multiple functions (see, for example, Patent Document 1).
[0004]
As another conventional example, it has also been proposed to facilitate customization of content display by a user (see, for example, Patent Document 2).
[0005]
FIG. 4 is a block diagram showing a configuration disclosed in Patent Document 2. As shown in FIG. The data broadcasting apparatus 41 generates content data for data broadcasting in the content generation unit 42 and transmits the content data from the data broadcast transmission unit 43. At this time, the data broadcasting device 41 prepares a plurality of screen patterns that can be selected by the user (viewer) in the content generation means 42 and includes them in the content data, and broadcasts using the satellite 44.
[0006]
When the data broadcast receiving device 45 receives a data broadcast including a screen pattern, the user can select the screen pattern. In addition, the data broadcast receiving device 45 designates a display character size, a character color, a character background color, a position and a size of a moving image or a still image, etc. when content data is displayed, and stores it in the layout storage means 49. In addition, it can be applied to the received content data.
[0007]
As another conventional example, the receiver preferentially displays the program that matches the preference in a form that accurately reflects the viewer's preference information, and the broadcasting station displays the viewer's preference. Broadcasting data including a questionnaire that asks about program preference information in broadcast data for the purpose of capturing changes as appropriate. The questionnaire results based on the viewer's answer are stored together with the reception history in the receiver. Is transmitted as broadcast data, the receiver returns the preference information stored in the receiver in response to the broadcast data. As a result, the receiver can preferentially display the program that suits the preference from the broadcast, and the broadcast station can appropriately capture changes in the viewer's preference and effectively utilize it for program production ( For example, see Patent Document 3).
[0008]
As another conventional example, when sending information as a teletext, the character information of the information is displayed in the same color as the background so that the information can be displayed only by a specific model receiver. In particular, when a receiver of a specific model finds character information having the same color as that of the background, it is displayed in a color different from that of the background. As a result, information is not displayed on a receiver other than a specific model, and information is displayed only on a receiver of a specific model (see, for example, Patent Document 4).
[0009]
[Patent Document 1]
JP 2000-196970 A [Patent Document 2]
JP 2001-285217 A [Patent Document 3]
JP 2002-052021 A [Patent Document 4]
Japanese Patent Laid-Open No. 02-111183
[Problems to be solved by the invention]
In broadcasting, it is desirable that broadcast contents such as broadcast content data and video / audio look the same in any receiver. However, the technique disclosed in Patent Document 4 limits the models that can display information.
[0011]
In addition, due to differences in the character fonts and screen display circuits built into the receiver, the character size displayed on the screen and the color of the image will vary depending on the receiver manufacturer and model. . Furthermore, in the techniques disclosed in Patent Document 1 to Patent Document 3, the character size, character color, character background color, and the like are changed according to the user's preference and designation, but this customizes the display so that the user himself can easily see it. Therefore, there is a problem that the display state becomes unrelated to what the content data creator intends.
[0012]
It is an object of the present invention to provide a data broadcasting system that can display content as intended by a program producer in any receiver.
[0013]
[Means for Solving the Problems]
The data broadcasting system of the present invention is a broadcasting station that creates and broadcasts markup language data including character information and color information, and receives the markup language data and receives the markup language data in a receiver based on the character information and the color information. In a data broadcasting system including a receiver that performs display,
A service server for storing display optimization data for optimizing display in the receiver of the markup language data created by the broadcast station;
The receiver acquires the display optimization data from the service server when receiving the markup language data, and displays the markup language data by correcting the character information and the color information based on the display optimization data. And
The service server includes a display evaluation unit that creates display optimization data that is digitized by evaluating the display at the receiver of markup language data created by a broadcasting station, and display optimization data that stores the display optimization data characterized by chromatic and a storage unit.
[0015]
Further, the receiver acquires the display optimization data from the display optimization data storage unit when receiving the markup language data, and displays the markup language data by correcting the character information and the color information based on the display optimization data. It is good to do.
[0016]
In any of the above cases, a plurality of display optimization data corresponding to each of a plurality of receivers are stored in the service server, and when the receiver acquires the display optimization data from the service server, the data indicating its own model is displayed. The service server may transmit display optimization data corresponding to the receiver to the receiver. .
[0017]
The broadcast station further includes means for creating data instructing the receiver to acquire display optimization data and including the data in the markup language data to be broadcast. The receiver includes markup language data. The display optimization data is acquired from the service server, and the character information and the color information are corrected based on the display optimization data. The markup language data may be displayed.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0019]
FIG. 1 is a block diagram showing the configuration of an embodiment of a data broadcasting system according to the present invention.
[0020]
This embodiment includes a broadcasting station 100, a receiver 200, and a service server 300.
[0021]
The broadcasting station 100 includes a video / audio production unit 11, a data production unit 12, a multiplexing unit 13, a program transmission unit 14, and an antenna 15.
[0022]
The receiver 200 includes a receiver 21, an AV decoder 22, a data decoder 23, an AV / data synthesizer 24, a receiver / speaker 25, a CPU 26 memory 27, a data transmitter / receiver 28, a remote controller 29, and a bus for interconnecting them. 30, an antenna 31 connected to the receiving unit 21, and a remote control 32 that sends a support signal to the remote control unit 29.
[0023]
The service server 300 includes a display evaluation unit 16, a display optimization data storage unit 17, a receiver 18, and an antenna 19 connected to the receiver 18.
[0024]
In the broadcasting station 100, video / audio data of a program is prepared by the video / audio production unit 11, and markup language (BML) data for data broadcasting is prepared by the data production unit 12. Video / audio data and BML data are data in a digital format. These digital data are multiplexed by the multiplexing unit 13 to become one stream data, which is output from the program sending unit 14 to the antenna 15 and becomes a broadcast wave (data broadcast).
[0025]
In the receiver 200, a broadcast wave is received by the antenna 31, and the broadcast wave is sent to the receiving unit 21 to be received data. The received data is separated into video / audio data and BML data by the CPU 26 and stored in the memory 27 via the bus 30. The memory 27 is composed of, for example, a semiconductor memory, a hard disk, or a removable disk.
[0026]
FIG. 2 is a block diagram showing data storage contents of the memory 27. Of the received data, video / audio data is stored in the video / audio data area 33, and BML data is stored in the BML data area 34. The memory 27 has a model optimization data area 35 for storing model optimization data to be described later.
[0027]
Returning again to FIG. The video / audio data stored in the memory 27 is sent to the AV decoder 22 and converted into a predetermined format, and then sent to the AV / data synthesis unit 24. The BML data stored in the memory 27 is converted into a predetermined format by the data decoder 23 and then sent to the AV / data synthesis unit 24. The AV / data synthesizer 24 synthesizes the video data and BML data of the converted video / audio data to create a display screen, further D / A converts the audio, and converts these into a receiver / speaker 25. Send to. In this way, the broadcast is reproduced.
[0028]
In addition, the viewer can operate the remote controller 32 to control various functions such as channel switching of the receiver, mail creation, volume adjustment, and the like. A signal indicating a command transmitted from the remote control 32 is received by the remote control unit 29. The CPU 26 analyzes a command included in the signal received by the remote control unit 29 and controls various functions of the receiver 200 using control means (not shown). Further, the CPU 26 manages each unit constituting the receiver 200 with respect to a series of processes from reception of the broadcast wave to reproduction.
[0029]
The service server 300 includes a plurality of receivers 18 for evaluation already sold or scheduled to be sold. When the display evaluation unit 16 constituting the service server 300 receives BML data from the data production unit 12 of the broadcast station 100, the display evaluation unit 16 evaluates the display state of each receiver 18, and uses the received BML data according to the result. Display optimization data 36 is created for each model. The display optimization data 36 is data that is created in order to adjust the display difference for each model to be uniform, and the display optimization data 36 created by the display evaluation unit 16 is display optimization data. It is stored in the storage unit 17.
[0030]
FIG. 3 is a diagram showing the configuration of the display optimization data 36 in the present embodiment. The display optimization data 36 includes standard data 37 and model optimization data 38.
[0031]
The standard data 37 is data that is assumed to be a display standard. For example, the standard data 37 is set based on the character size and color displayed on the equipment when the data production unit 12 of the broadcast station 100 produces BML data.
[0032]
The model optimization data 38 is data prepared for each model, and the data of each model A, B, and C is shown in the figure. The data of each model is composed of at least character size adjustment data 39 and color adjustment data 40, and the color adjustment data 40 is set with adjustment values for each of R, G, and B3 colors. The adjustment values of the character size adjustment data 39 and the color adjustment data 40 shown in the drawing are examples.
[0033]
The set value of each model optimization data 38 is set by the display evaluation unit 16 by comparing the display state of each model with the standard data 37 to obtain a difference / difference and digitizing it. This comparison is performed using a human viewing check or image recognition technology.
[0034]
In the broadcasting station 100, when it is desired to display the BML data in the same manner for any model, the contact information (address) of the service server 300 and the model optimization data corresponding to the receiver from the service server 300 are included in the BML data to be broadcast. 38 including an instruction program (hereinafter referred to as a display optimization script).
[0035]
When receiving the data broadcast, the receiver 200 executes a display optimization script by the data decoder 23 and the CPU 26 and accesses the service server 300 via the data transmission / reception unit 28.
[0036]
When the service server 300 receives an acquisition request for the model optimization data 38 from the receiver 200, the service server 300 transmits the model optimization data 38 corresponding to the receiver 200 to the receiver 200. In this way, the receiver 200 acquires the model optimization data 38 and stores it in the model optimization data area 35 of the memory 27.
[0037]
Next, before sending the decoded BML data to the AV / data synthesis unit 24 by executing the display optimization script, the character size designation value and the color designation value included in the BML data are detected, and the display difference data Each value is corrected and optimized based on the display difference data stored in the region 38. After this optimization, the optimized BML data is sent to the AV / data synthesis unit 24 and displayed on the receiver 25 as intended by the producer.
[0038]
In the present embodiment described above, the BML data produced by the broadcast station 100 for evaluation is suitable as the BML data received by the display evaluation unit 16 from the data production unit 12 of the broadcast station 100. In addition, the service server 300 acquires BML data actually broadcast using the receiver 18 and the antenna 19 and sends the BML data to the display evaluation unit 16 to readjust the display optimization data, and to further optimize the optimization accuracy. Can also be raised.
[0039]
Further, the display optimization data 36 is not composed only of the character size adjustment data 39 and the color adjustment data 40, but is adjusted for each tag of BML data that indicates the screen configuration, such as a tag indicating the size of a figure. May be prepared.
[0040]
【The invention's effect】
As described above, according to the present invention, by preparing data for optimizing the display for each receiver of various models sold, each receiver can perform as intended by the program producer. There is an effect that a display can be obtained.
[Brief description of the drawings]
FIG. 1 is an overall block diagram of a data broadcasting system according to an embodiment of the present invention.
FIG. 2 is a conceptual diagram of a memory 27 of the present invention.
FIG. 3 is a conceptual diagram of display optimization data 36 according to the present invention.
FIG. 4 shows an example of a conventional data broadcasting system.
[Explanation of symbols]
11 Video / Audio Production Unit 12 Data Production Unit 13 Multiplexing Unit 14 Program Transmission Units 15, 19, 31 Antenna 16 Display Evaluation Unit 17 Display Optimization Data Storage Unit 18 Receiver 21 Reception Unit 22 AV Decoder 23 Data Decoder 24 AV Decoder Data composition unit 25 Receiver / speaker 26 CPU
27 Memory 28 Data Transmission / Reception Unit 29 Remote Control Unit 30 Bus 32 Remote Control 33 Video / Audio Data Area 34 BML Data Area 35 Model Optimization Data Area 36 Display Optimization Data 37 Standard Data 38 Model Optimization Data 39 Character Size Adjustment Data 40 Color Adjustment data 41 Data broadcast apparatus 42 Content generation means 43 Data broadcast transmission means 44 Satellite 45 Data broadcast reception apparatus 46 Data broadcast reception means 47 Data storage means 48 Display control means 49 Layout storage means 50 Display means 51 Instruction input means 100 Broadcast station 200 Receiver 300 service server

Claims (4)

A broadcast station that creates and broadcasts markup language data including character information and color information, and a receiver that receives the markup language data and displays on the receiver based on the character information and the color information. In the data broadcasting system provided,
A service server for storing display optimization data for optimizing display in the receiver of the markup language data created by the broadcast station;
The receiver acquires the display optimization data from the service server when receiving the markup language data, and displays the markup language data by correcting the character information and the color information based on the display optimization data. And
The service server includes a display evaluation unit that creates display optimization data that is digitized by evaluating the display at the receiver of markup language data created by a broadcasting station, and display optimization data that stores the display optimization data data broadcasting system characterized by chromatic and a storage unit. The data broadcasting system according to claim 1 , wherein
The receiver acquires the display optimization data from the display optimization data storage unit when receiving the markup language data, and displays the markup language data by correcting the character information and the color information based on the display optimization data. A data broadcasting system characterized by In the data broadcasting system according to claim 1 or 2 ,
A plurality of display optimization data corresponding to a plurality of receivers are stored in the service server, and when the receiver acquires the display optimization data from the service server, the receiver transmits data indicating its model, and the service The server transmits display optimization data corresponding to the receiver to the receiver. In the data broadcasting system according to any one of claims 1 to 3 ,
The broadcasting station includes means for creating data instructing the receiver to acquire display optimization data and including the data in the markup language data to be broadcast. The receiver displays the markup language data. When the data for instructing to acquire the optimization data is included, the display optimization data is acquired from the service server, and the character information and the color information are corrected based on the display optimization data. A data broadcasting system characterized by displaying up-language data.

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