JP2005192007A - Broadcast receiver and broadcast receiving method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inform a user of a fact that the contents of data broadcast are updated. <P>SOLUTION: A data broadcast signal in a carousel system described in a BML form is acquired from by a TS decoder 104 from a digital broadcast signal received by a tuner 103, displayed on a display part 107 by a browser, character information to be monitored is selected, stored among pieces of displayed information, BML in data broadcast of a broadcast signal to be broadcast later is compared, when the contents of the character information are changed, it is judged that the contents of the data broadcast are updated and user is informed of it. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a broadcast receiving apparatus and a broadcast receiving method for receiving a digital broadcast that also broadcasts data in addition to a normal television program, and in particular, viewing that data broadcast content has been updated while the television program is being viewed. The present invention relates to a broadcast receiving apparatus and a broadcast receiving method that notify a person.

  In digital broadcasting, apart from television broadcasting that broadcasts the same television program as before, audio broadcasting such as radio broadcasting mainly composed of audio and data broadcasting mainly based on character information are distributed.

  Data broadcasting consists of a combination of text, graphics, still images, video, audio, and other presentation media. For example, data can be presented at the corner of the screen by a viewer operating a remote controller while watching a television program. It is possible to secure the area and view the desired information by interactively selecting and displaying the presented information with the remote controller. Alternatively, a data broadcast can be presented instead of the presented television program.

  Currently, the information provided by data broadcasting includes weather information, news, stocks, sports, etc., and the data that make up the content is always sent in the carousel transmission system, so the content changes on the delivery side By doing so, for example, it is possible to always present the latest weather information or to provide the viewer with the progress of a sports game such as professional baseball in real time.

  The contents of television broadcasting and data broadcasting are not necessarily based on the same information. When a user is watching a television broadcast and is concerned about the progress of a baseball game, a data broadcast display screen is launched to check the content of the game. At this time, the video of the television broadcast is reduced or hidden, so that viewing of the television broadcast is hindered. Naturally, if the data broadcast display screen is not up, it is not known whether the content has been updated. Therefore, whenever the user wants to check, the data broadcast screen has to be started up and checked.

  Thus, conventionally, when trying to acquire information provided by data broadcasting while watching a television program, there is only a method of confirming after starting the data broadcasting screen each time, and even if it is launched, content If it is not updated, it would be a wasteful work and hinder the viewing of television programs, but no attempt has been made to solve such problems.

For example, Patent Document 1 discloses an apparatus in which when character string data is displayed in a program being viewed, the apparatus is switched to receive a program that broadcasts information presented by the character string data. However, in this case, the character string data is not presented by data broadcasting, and does not solve the above problem.
JP 2002-135667 A (6th and 7th pages, FIGS. 2 and 3)

  As described above, the fact that information provided by data broadcasting has been updated in the past means that viewers have to start up the data broadcasting screen and confirm it by actually displaying the information, and the operability is remarkable. It was bad.

  The present invention has been made in view of the above points, and during the viewing of a television program, a user designates in advance a content to be monitored for updating among contents provided by data broadcasting. Even so, an object of the present invention is to provide a broadcast receiving apparatus and a broadcast receiving method capable of constantly monitoring the content data, detecting the updated content data, and notifying the user.

  The broadcast receiving apparatus of the present invention configures a specific screen with receiving means for receiving a data broadcast transmitted by the carousel method as data in which character information as an element constituting the screen is described in a specific description format. Storage means for storing character information as an element in a form that can be specified based on the description format, and character information corresponding to the stored character information in the transmitted data based on the description format A comparison means for identifying and comparing with the stored character information; and a control means for notifying that the data has been updated when the character information is different as a result of the comparison.

  Also, the broadcast receiving apparatus of the present invention includes a receiving means for receiving a data broadcast in which data described in a predetermined description format and including character information is transmitted by a carousel method, and the character information included in the data is described in the description. When the character information is different as a result of the comparison between the storing means for storing in a form that can be specified based on the format, the comparing means for comparing the stored character information with the character information in the data transmitted thereafter And a control means for notifying that the data has been updated.

  Further, the broadcast receiving apparatus of the present invention includes a receiving means for receiving a data broadcast in which data including a plurality of different character information described in a predetermined description format is transmitted by a carousel method, and the received plurality of character information. Display means for displaying data including data, storage means for selecting character information desired to be monitored from the plurality of displayed character information, and storing the information in a form that can be specified based on the description format; and A comparison means for comparing the stored character information with the character information in the data transmitted thereafter, and a control means for notifying that the data has been updated when the character information is different as a result of the comparison; It is characterized by comprising.

  Also, the broadcast receiving apparatus of the present invention constitutes a receiving screen for receiving data broadcast in which data including character information as an element constituting the screen is transmitted by the carousel method, and a specific screen included in the data. Storage means for storing character information as an element in a form that can be specified as an element of the specific screen; comparison means for comparing the stored character information with corresponding character information of the transmitted specific screen; And control means for notifying that the data has been updated when the character information is different as a result of the comparison.

  Further, the broadcast receiving method of the present invention comprises a step of receiving a data broadcast transmitted by a carousel method as data in which character information as an element constituting a screen is described in a specific description format, and a specific screen is configured. Character information as an element to be stored in a form that can be specified based on the description format, and character information corresponding to the stored character information in the transmitted data based on the description format A step of identifying and comparing with the stored character information, and a step of notifying that the data has been updated when the character information is different as a result of the comparison.

  Furthermore, the broadcast receiving method of the present invention includes a step of receiving a data broadcast in which data described in a predetermined description format and including character information is transmitted by a carousel method, and character information included in the data is converted into the description. When the character information is different as a result of the comparison between the step of storing in a form that can be specified based on the format, the step of comparing the stored character information with the character information in the data transmitted thereafter, And a step of notifying that the data has been updated.

  Further, the broadcast receiving method of the present invention includes a step of receiving a data broadcast in which data including a plurality of different character information described in a predetermined description format is transmitted by a carousel method, and the received plurality of character information. A step of displaying data to be included; a step of selecting character information to be monitored from the plurality of displayed character information; and storing the character information in a form that can be specified based on the description format; A step of comparing the information with the character information in the data transmitted thereafter, and a step of notifying that the data has been updated when the character information is different as a result of the comparison. And

  Furthermore, the broadcast receiving method of the present invention includes a step of receiving a data broadcast in which data including character information as an element constituting a screen is transmitted by a carousel method, and an element constituting a specific screen included in the data The character information in a form that can be specified as an element of the specific screen, the step of comparing the stored character information with the corresponding character information of the transmitted specific screen, and the result of the comparison And a step of notifying that the data has been updated when the character information is different.

  According to the present invention, the user can know that the content provided by the data broadcast has been updated while viewing the television program, so that the user can check the information by receiving the data broadcast. Therefore, it is possible to obtain the latest information provided by data broadcasting while minimizing the hindrance to viewing a television program.

Hereinafter, embodiments of the broadcast receiving apparatus of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a circuit block diagram showing a television receiver 100 equipped with the broadcast receiving apparatus of the present invention.

  In FIG. 1, broadcast radio waves caught by the antenna 101 are led to the tuner unit 103 through the antenna input terminal 102 as a broadcast signal.

  The tuner 103 unit selectively receives a predetermined channel from the broadcast signal, demodulates the received broadcast signal, performs processing such as error correction, and derives it as a TS (Transport Stream) signal.

  The signal output from the tuner unit 103 is obtained by packetizing and multiplexing video data and audio data constituting a television program, and data constituting a data broadcast program and other additional information such as program information. Yes, and supplied to the TS decoder 104.

In the TS decoder 104, the packetized data is reconstructed, separated and extracted for each data type, and output.
The video data is supplied from the TS decoder 104 to the video decoder 105, where, for example, MPEG (Moving Picture Experts Group) 2 decoding processing is performed, converted into an uncompressed digital video signal, and output. The output of the video decoder 105 is derived and displayed on the display unit 107 via the superimposing unit 106.

  The superimposing unit 106 derives the OSD signal generated by the OSD signal generating unit 108 by superimposing it on the video data from the video decoder 105, and the OSD generating unit 108 also generates browser screen information described later.

  Furthermore, the audio data output from the TS decoder 104 is decoded and converted into an uncompressed digital audio signal by the audio decoder 109 and output as audio from the audio output unit 110.

  In order to perform function adjustment, operation switching, setting, and the like of the entire television receiver 100, a control unit 111 configured by an MPU (Micro Processing Unit) is provided. Connected to the control unit 111 are a ROM (Read Only Memory) 112 in which various processing programs including a browser are stored, a D-RAM (Dynamic Random Access Memory) 113 as a work memory, and a FLASH-ROM 114 for data storage. Has been.

  Further, a remote control light receiving unit 115 and an operation input unit 116 are connected to the control unit 111, and the remote control light receiving unit 115 receives an infrared signal from the remote controller 117 and sends it to the control unit 111. The input unit 116 includes a plurality of operation switches provided on, for example, a housing front panel (not shown) of the television receiver 100.

  When the user operates the remote controller 117 and the input unit 116, the control unit 111 performs adjustment, operation switching, and setting of each unit of the television receiver 100. For example, channel selection, start-up reception of data broadcasting, and the like.

  FIG. 2 shows an example of a specific key arrangement of the remote controller 117, which includes a numeric key 201, a cursor key 202, a determination key 203, a data key 204, an end key 205, a return key 206, a monitor selection key 207, and the like. Have.

  A numeric key 201 is for inputting numeric data such as a channel number, and a cursor key 202 is generated by the OSD signal generator 108 and displayed in a GUI (Graphical User Interface) format displayed on the display unit 108. Used to select a desired item from the screen, and the enter key 203 is used to register an item whose cursor has been moved by the cursor key 202. A data key 204 is a key for starting up viewing of data broadcasting. The end key 205 is used for ending the item registration process on the display screen of the GUI format, for example, and the return key 206 is used for returning the hierarchy of the hierarchical OSD display screen, for example. The monitoring selection key 207 is used to start processing for selecting data to be monitored, which will be described later.

  Data broadcasting consists of BML (Broadcast Markup Language) text and graphics files, image files, and audio files, and these file groups are continuously updated while being updated appropriately by the carousel transmission method. Is done. Therefore, whenever data acquisition is started, all data can be acquired if received for a period corresponding to the period in which all data is transmitted. In order to display the acquired data on the screen of the display unit 107, a BML browser is prepared.

  Now, assuming that the user operates the data key 204 of the remote controller 117, the control unit 111 receives the remote control signal via the remote control light receiving unit 115, sends a control signal to the TS decoder 104, and transmits data broadcasting. A data packet is received and a BML browser is activated.

  The BML browser temporarily stores the data received from the TS decoder 104 in, for example, the D-RAM 113, activates the BML browser to construct a display screen, and derives the data to the superimposing unit 106 via the OSD signal generation unit 108. The superimposition unit 106 superimposes the data broadcast reception screen display information from the OSD signal generation unit 108 on the television program video from the video decoder 105 and sends it to the display unit 107 for display.

  As described above, the data broadcast can be received and the information can be browsed. In the present invention, the data (content) that the user wants to obtain from the information transmitted by the data broadcast is obtained. By specifying and registering it in advance, the information is monitored, and when the contents are updated, the user is notified of it.

  In the television receiver 100 shown in FIG. 1, only one tuner 103 is provided. Therefore, the data broadcast for acquiring data is intended to be transmitted in the same TS as the television program being viewed. However, if a plurality of tuners are provided, it is possible to acquire data broadcast data transmitted by a TS different from the TV program being viewed as a monitoring target.

  FIG. 3 is a presentation example of a data broadcast screen, in which the progress of a professional baseball game is displayed. That is, on the display screen 301 of the display unit 107, the television program 302 being viewed is displayed in an area of about 1/4 of the upper right, and a professional baseball game card is displayed as a professional baseball game bulletin 303 on the left half of the screen. The score progress is displayed, and a supplementary explanation 304 or a comment for the display contents of the professional baseball game bulletin 303 is displayed in the display area about ¼ at the lower right of the screen.

  The data displayed in FIG. 3 is automatically updated in conjunction with the progress of the game, and it is assumed that the user wants to know the progress of the game while watching the television program 302.

  Therefore, the user operates the monitor selection key 207 of the remote controller 117, for example. The control unit 111 receives the remote control signal via the remote control light receiving unit 115, sets the selection mode, and in the supplementary explanation area 304 of the display screen 401, “select a game to check for update” as shown in FIG. Please "display 402 and a cursor 403 is displayed in the battle card display area.

  By operating the cursor key 202 of the remote controller 117, the cursor 403 moves between the displayed battle cards, moves the cursor 403 to the battle card to be monitored, and then operates the enter key 203. Setting registration is performed to monitor the data of the battle card.

  Here, data that can be set and registered as monitoring targets are div elements and p elements defined in the BML document.

  The control unit 111 receives user setting registration processing, determines which of the elements constituting the BML document corresponds to the selected portion, and corresponds to the BML file name and the selected location in the file. Information including the id attribute of the element and the content to be monitored (such as a character string) is stored in the FLASH-ROM 114 as monitoring setting information.

  An example of the monitoring setting data stored in the FLASH-ROM 114 is shown in FIG. It consists of a BML file name (xxx.bml) 501, an id attribute 502, and comparison data (character string) 503.

  Note that if the id attribute is not given to the element selected by the user, the appearance order of the elements in the document is numbered, and the index value of the target element is used instead of the id attribute value. become. That is, as shown in FIG. 6, the file name (xxx.xxx) 601, the index value 602, and the comparison data (character string) 603 are included.

  In fact, binary data referenced from BML may contain noticeable information (such as character strings representing game progress, points, etc.), so if there is data referenced by an element, Make the file a monitoring target. In that case, the file name of the binary table itself, the index value of the binary table referenced at the time of selection, and the contents of the binary data referenced by the index value at the time of selection are stored as monitoring setting data.

  FIG. 7 is a tree showing the structure of the BML elements presented by the browser. From the body 701, the element <p> professional baseball game bulletin 702 and div 703 to 706 are derived, and the id attribute is assigned to each div 703 to 706. The p elements 707 to 710 having the above are derived.

  For example, the part selected in FIG. 4 corresponds to the p element 708 having “game2” in the id attribute in FIG. 7, and the control unit 111 selects the BML file name 801 as shown in FIG. The ID attribute 802 and the character string included in the element (here, the character string “God 2-0 giant”) 803 are stored as monitoring setting data in the HLASH-ROM 114.

  As described above, by storing the monitoring setting data, the control unit 111 makes full use of the TS decoder 104 and waits for the monitoring target file to arrive in the data broadcast data to be transmitted. When a monitoring target file is received, BML structure analysis is performed to search for an element having the same id attribute value as the id attribute value stored as monitoring setting data.

  When an element with the same id attribute value as the monitoring setting data is detected, the character string of the monitoring setting data is compared with the character string included in the element, and if it is the same character string, it is determined that it has not been updated. And wait for the monitored file to arrive again.

  When the character string has different contents, the control unit 111 generates the message information by the OSD signal generation unit 108 and superimposes the data on the video of the television program by the superimposition unit 106, assuming that the data has been updated. The display unit 107 displays that the broadcast data has been updated.

  A display example of the display unit 107 is shown in FIG. As shown in the figure, a message 902 “Data broadcast content has been updated” is displayed in the upper left corner of a screen 901 on which a television program image is displayed. Further, when the processing is continued, the character string of the monitoring setting data stored in the FLASH-ROM 114 is changed to an updated character string obtained from data broadcasting. Further, when ending the process, for example, the end key 205 of the remote controller 117 is operated.

  FIG. 10 is a flowchart showing processing for setting data to be monitored. In step S1001, the data broadcast browsing screen is launched by operating, for example, the data key 204 of the remote controller 117 in step S1002.

  In step S1003, the monitor selection key 207 of the remote controller 117 is operated to set the selection mode. In step S1004, the monitoring target data is selected from the data broadcast browsing screen using the cursor key 202 and the enter key 203 of the remote controller 117.

  In step S1005, the BML file name including the selected data, the id attribute of the selected data, and the comparison data are saved. Next, it is determined whether or not other data is set and registered in step S1006. If other data is set and registered, the process returns to step S1004 to select other monitoring data.

  If no other data is set and registered, the end key 205 is operated in step S1007 to cancel the selection mode, and the process ends in step S1008.

  FIG. 11 is a flowchart showing a process for actually monitoring the monitoring target data set as described above. In step S1101, a data broadcast is received in step S1102. In step S1103, it is determined whether a file having the same name as the BML file of the data set as a monitoring target has arrived. If no file with the same name arrives, the process returns to step S1102 to continue receiving data broadcasts.

  If it is determined in step S1103 that a file with the same name has arrived, the structure analysis of the BML file received in step S1104 is performed, and the content analyzed in step S1105 is compared with the monitoring setting data.

  In step S1106, it is determined whether or not an element having the same id as the monitoring setting data exists in the received BML file. If no element having the same id exists, the process returns to step S1102 to receive the data broadcast. continue.

  If it is determined in step S1106 that an element having the same id exists, in step S1107, the character string included in the element of the received BML file is compared with the character string of the monitoring setting data.

  If it is determined in step S1108 that the compared character strings remain the same, it is determined that there is no data update, and the process returns to step S1102 to continue receiving the data broadcast.

  If it is determined in step S1108 that the content of the character string is different, notification is made in step S1109 that the content of the data broadcast has been updated. Next, in step S1110, it is determined whether or not the end key has been operated. If it is determined that the end key has not been operated, the character string of the monitoring setting data is changed to the updated character string in step S1111. The process returns to S1102.

  If it is determined in step S1110 that the end key has been operated, the process ends in step S1112.

  As described above, according to the broadcast receiving apparatus of the present invention, by registering in advance data designated by the user from data broadcast by data broadcasting, it is constantly monitored whether or not the data has been updated. In addition, when updated, the user is notified of the fact, so that the user can surely check the updated data.

  The channel selection device of the present invention is not limited to the above-described embodiment, and can be implemented in various ways without departing from the spirit thereof. For example, the fact that the content of data broadcasting has been updated can be notified by flashing an indicator lamp or by sound, in addition to a method of notifying the user by displaying text on the screen.

The circuit block diagram of the television receiver carrying the broadcast receiver which concerns on this invention. The figure for demonstrating key arrangement | positioning of the remote controller applied to the television receiver shown in FIG. The figure for demonstrating operation | movement of the broadcast receiver of this invention. The figure for demonstrating operation | movement of the broadcast receiver of this invention. The figure which shows an example of the data structure of the monitoring setting data in the broadcast receiver of this invention. The figure which shows the other example of a data structure of the monitoring setting data in the broadcast receiver of this invention. The figure for demonstrating operation | movement of the broadcast receiver of this invention. The figure which shows an example of the data tree structure of a BML file. The figure for demonstrating operation | movement of the broadcast receiver of this invention. The flowchart for demonstrating the process which registers monitoring setting data in the broadcast receiving apparatus of this invention. The flowchart for demonstrating the process which monitors the update of data broadcasting in the broadcast receiver of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Television receiver 101 ... Antenna 102 ... Antenna input terminal 103 ... Tuner part 104 ... TS decoder 105 ... Video decoder 106 ... Superimposition part 107 ... Display part 108 ... OSD signal generation part 109 ... Audio decoder 110 ... Audio | voice output part 111 ... Control unit 112 ... ROM
113 ... D-RAM
114 ... FLASH-ROM
DESCRIPTION OF SYMBOLS 115 ... Remote control light-receiving part 116 ... Input part 117 ... Remote controller 202 ... Cursor key 203 ... Decision key 204 ... Data key 205 ... End key 206 ... Return key 207 ... Monitoring selection key

Claims (9)

Receiving means for receiving a data broadcast transmitted by the carousel method as data in which character information as an element constituting the screen is described in a specific description format;
Storage means for storing character information as an element constituting a specific screen in a form that can be specified based on the description format;
Comparing means for identifying character information corresponding to the stored character information in the transmitted data based on the description format and comparing the character information with the stored character information;
As a result of the comparison, when the character information is different, a control means for notifying that the data has been updated;
A broadcast receiving apparatus comprising: Receiving means for receiving data broadcast in which data including character information described in a predetermined description format is transmitted by the carousel method;
Storage means for storing character information included in the data in a form that can be specified based on the description format;
A comparing means for comparing the stored character information with the character information in data transmitted thereafter;
As a result of the comparison, when the character information is different, a control means for notifying that the data has been updated;
A broadcast receiving apparatus comprising: Receiving means for receiving a data broadcast in which data including a plurality of different character information described in a predetermined description format is transmitted by the carousel method;
Display means for displaying the received data including a plurality of character information;
A storage unit that selects character information to be monitored from the plurality of displayed character information and stores the character information in a form that can be specified based on the description format;
A comparing means for comparing the stored character information with the character information in data transmitted thereafter;
As a result of the comparison, when the character information is different, a control means for notifying that the data has been updated;
A broadcast receiving apparatus comprising: Receiving means for receiving data broadcast in which data including character information as an element constituting the screen is transmitted by the carousel method;
Storage means for storing character information as an element constituting a specific screen included in the data in a form that can be specified as an element of the specific screen;
A comparing means for comparing the stored character information with corresponding character information of the transmitted specific screen;
As a result of the comparison, when the character information is different, a control means for notifying that the data has been updated;
A broadcast receiving apparatus comprising: 2. The television broadcast viewing device according to claim 1, further comprising means for viewing the television broadcast, wherein the data broadcast is multiplexed and transmitted in the same or different transport stream as the television broadcast being viewed by the television broadcast viewing device. 4. The broadcast receiving device according to any one of 4 above. Receiving a data broadcast transmitted by a carousel method as data in which character information as an element constituting a screen is described in a specific description format;
Storing character information as an element constituting a specific screen in a form that can be specified based on the description format;
Identifying character information corresponding to the stored character information in the transmitted data based on the description format, and comparing the character information with the stored character information;
As a result of comparison, when the character information is different, informing that the data has been updated,
A broadcast receiving method comprising: Receiving a data broadcast in which data including character information described in a predetermined description format is transmitted by a carousel method;
Storing the character information included in the data in a form that can be specified based on the description format;
Comparing the stored character information with the character information in subsequently transmitted data;
As a result of comparison, when the character information is different, informing that the data has been updated,
A broadcast receiving method comprising: Receiving a data broadcast in which data including a plurality of different character information described in a predetermined description format is transmitted by a carousel method;
Displaying the received data including a plurality of character information;
Selecting character information to be monitored from the displayed plurality of character information, and storing the character information in a form that can be specified based on the description format;
Comparing the stored character information with the character information in subsequently transmitted data;
As a result of comparison, when the character information is different, informing that the data has been updated,
A broadcast receiving method comprising: Receiving data broadcast in which data including character information as an element constituting a screen is transmitted by a carousel method;
Storing character information as an element constituting a specific screen included in the data in a form that can be specified as an element of the specific screen;
Comparing the stored character information with the corresponding character information of the transmitted specific screen;
As a result of comparison, when the character information is different, informing that the data has been updated,
A broadcast receiving method comprising:

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