JP4313926B2 - Signal processing apparatus and signal processing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a signal processing device in a data broadcast reception-compatible television broadcast receiver that receives, displays, and reproduces data broadcast content in which, for example, characters, images, sounds, and video are multiplexed. And signal processing method It is about.
[0002]
[Prior art]
As for data broadcasting, some broadcasting stations currently start broadcasting in terrestrial television broadcasting, and part broadcasting also starts in satellite television broadcasting. In these data broadcasts, data is transmitted from a broadcast station by superimposing data on broadcast radio waves. On the receiving device side, the received and accumulated data is read into a personal computer or a dedicated terminal and displayed by a general-purpose WWW (World Wide Web) browser software.
[0003]
Recently, a new service is expected by making such a data broadcasting service receivable not only by a personal computer but also by a television receiver. In other words, the TV receiver itself is equipped with a data broadcasting reception function and browser software, so that even users without a personal computer can easily view various information, and display information linked to TV programs in text and images. It will be possible to provide a service that makes it happen.
[0004]
As an example, a new news service using data broadcasting has been proposed. This is a news item that is recorded in advance on a recording device on the television receiver side, and a data broadcast screen consisting of characters and images is presented to the user as a “news item” and selected by the user via a remote control or the like. Is to play the video. With such a service, a new service that has never existed before, such as a news program that was previously only available at a certain time, can be viewed at any time, or only items of news that the user wants to see can be viewed. Will be able to provide.
[0005]
[Problems to be solved by the invention]
However, when a television receiver is provided with such a data broadcast reception function, a normally large font is used in order to improve the visibility of characters. As a result, the text information that can be displayed at one time is naturally reduced. For example, in the above-mentioned news service, it is only possible to display 3-5 news contents on the screen, and many news items are displayed together with summaries and photographs. It was difficult to display.
[0006]
In addition, although it is possible to display information that could not be displayed at one time by scrolling or changing pages, users are forced to perform unnecessary operations and users who are not used to operating environments such as personal computers and video games Given that, it is not appropriate.
[0007]
As described above, in the conventional technology, an environment in which a user really finds what he / she wants to see from many items has not been realized, and improvement has been demanded.
[0008]
In view of the above-mentioned conventional problems, the present invention improves a user interface in a television receiver capable of receiving a data broadcast, and realizes a user's desired information selection and operation with an easy operation. And signal processing method The purpose is to provide.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a signal processing apparatus according to the present invention comprises a plurality of signals. Video Receiving means for receiving data for data broadcasting including content; A storage unit configured to store the plurality of video contents included in the data broadcasting data received by the reception unit; and a storage unit stored by the storage unit The plurality Video Different content Number Generating means for generating code; Print control means for outputting print data in which a plurality of images related to the plurality of video contents and a numeric code generated by the generation means for each video content are associated with each other and output to a printing apparatus; Of the plurality of numeric codes arranged in association with the plurality of images related to the plurality of video contents in the print data, the user any Number the code choose For entering Numeric buttons are provided Input means; Among the plurality of video contents stored by the storage unit, Input by the input means Number Corresponding to the code Video content Play Execute the process And processing means It is characterized by that.
The signal processing method according to the present invention includes a plurality of Video A receiving step of receiving data broadcasting data including content; A storage step for storing the plurality of video contents included in the data broadcasting data received in the reception step; and a storage step stored in the storage step The plurality Video Different content Number A generation step to generate code; A print control step of outputting, to a printing apparatus, print data in which a plurality of images related to the plurality of video contents and the numeric codes generated in the generation step are associated with each video content; Of the plurality of numeric codes arranged in association with the plurality of images related to the plurality of video contents in the print data, the user any Number the code choose For entering Numeric buttons are provided An input step; Among the plurality of video contents stored in the storing step, Entered in the input step Number Corresponding to the code Video content Play Execute the process With processing steps It is characterized by that.
[0076]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0077]
[First Embodiment]
FIG. 1 is a block diagram showing an overall configuration of a digital television receiver according to the first embodiment of the present invention.
[0078]
In the digital television receiver 100, a signal received by an antenna (not shown) is input to the tuner unit 101. The tuner unit 101 performs processes such as demodulation and error correction on the input signal, and generates digital data in a format called a transport stream. Further, the generated transport stream (TS) data is output to the descrambler 102.
[0079]
The descrambler 102 receives the descramble key information included in the TS data and the IC card control unit 117 when TS data that is scrambled for viewing restriction is input from the tuner unit 101. Based on the key information, descrambling is performed and output to the demultiplexer 103.
[0080]
Here, the IC card control unit 117 has an IC card in which key information for deciphering the descrambler key information included in the user contract information and TS data is stored, and is input from the descrambler 102. If there is key information for solving the descrambling key information, the key information is output to the descrambler 102.
[0081]
When descrambler 102 receives TS data that has not been scrambled from tuner unit 101, descrambler 102 outputs TS data to demultiplexer 103 as it is.
[0082]
The demultiplexer 103 is an operation unit selected from TS data in which video, audio data, electronic program guide (EPG) data, data broadcast data, etc. for a plurality of channels input from the descrambler 102 are time-division multiplexed. 114 or the channel selected by the operation of the remote controller 116, the video data D1 and the audio data D2 relating to the currently broadcast program are taken out and output to the video decoder 104 and the audio decoder 105, respectively.
[0083]
Further, the demultiplexer 103 takes out the data broadcast / EPG data D3 from the above TS decoder and inputs it to the data stream processing unit 106. The data broadcast / EPG data processed by the data stream processing unit is taken into the memory 107 via the bus 120 connected to the CPU 118, and stored in the hard disk 123 after software processing by the CPU described later.
[0084]
Also, TS data is transmitted in units of packets, and a PID (Packet Identification) is added to the head portion of the packet. By reading this PID, the demultiplexer 103 identifies video data D1, audio data D2, and data broadcast / EPG data D3.
[0085]
First, video data will be described. The video decoder 104 performs MPEG2 decoding processing on the video data D1 input from the demultiplexer 103, and outputs the decoded video data to the display control unit 109. The display control unit 109 switches the screen according to the operation of the video decoder 104 or the remote controller or multiplexes and displays the image on the image display unit 112. Here, the screen configuration unit 108 will be described later. The image display unit 112 includes a monitor (not shown) and a video signal input terminal.
[0086]
Next, audio data will be described. The audio decoder 105 performs MPEG2 decoding processing on the audio data D2 input from the demultiplexer 103, and outputs the decoded audio data to the DAC 110. The DAC 110 performs D / A conversion processing on the audio data input from the audio decoder 105 and outputs the result to the audio output unit 113. The audio output unit 113 includes a speaker (not shown) and an audio signal input terminal.
[0087]
Next, the data broadcast / EPG data D3 will be described. Electronic program guide (EPG) data is transmitted in a data structure defined by standards such as “program display information used for digital broadcasting” by the Radio Industry Association (commonly known as ARiB). As main configuration data, SDT (Service Description Table) that transmits information about organized channels, such as the name of the organized channel and the name of the broadcasting company, the information about the program, such as the name of the program, the broadcast start date and time, and the content description EIT (Event Information Table).
[0088]
In data broadcasting, digital data is repeatedly transmitted from a broadcasting station according to a DSM-CC data carousel system defined in ISO / IEC13818-6. The data broadcast data filtered by the demultiplexer 103 includes text information, script information, image information, and video / audio data. The text information is described in XML (eXtensible Markup Language) defined by W3C. ing.
[0089]
The data broadcast / EPG data D3 is decoded by the data stream processing unit 106 into EPG data composed of text information and image information, and data broadcast data composed of text information, image information, and video / audio data, and then the bus. The data is input to the memory 107 via 120. The CPU 118 performs processing described later on the data broadcast data, and then stores the processing result data including the display XML data in the hard disk 123.
[0090]
When a data broadcast display instruction is input from the remote controller 116 via the operation unit 114 or the light receiving unit 115, the CPU 118 reads the display XML data from the hard disk 123 and outputs it to the screen configuration unit 108.
[0091]
The screen configuration unit 108 is processed by the CPU 118 and outputs a video signal to the display control unit 109 based on the output data. As described above, the display control unit 109 outputs a video signal to the image display unit 112 in order to switch between the video screen, the data broadcast screen, and the like and to perform composite display.
[0092]
An IEEE 1394 interface 122 and a modem 121 are further connected to the bus 120, and the 1 1394 interface 122 is used for protocol communication with the VTR 131 and the printer 132 to which the present television receiver is connected. The modem 121 is used to connect to the Internet via a telephone line.
[0093]
An example of the remote controller 116 is shown in FIG. However, this figure shows only buttons for performing operations for realizing functions necessary for the description of the present embodiment, and buttons necessary for an actual receiving apparatus are not limited to this.
[0094]
In addition to the one shown in FIG. 2, a pointing device such as a mouse can be used.
[0095]
2, 201 is a light emitting unit for performing infrared communication between the remote controller and the light receiving unit 115 in FIG. 1, 202 is a power key for turning on / off the power of the digital television receiver 100, and 203 is for moving the selection cursor up and down. Cursor keys for moving left and right, 204 a determination button for determining the selection of an area designated by the selection cursor, and 207 a menu button for displaying a menu screen. Reference numeral 206 denotes four buttons called color keys, which are arranged from left to right as “red”, “green”, “blue”, and “yellow”, and “Action Code” is printed beside the red key. Also, “Public Code” is printed beside the “green” key. Reference numeral 205 denotes a numeric keypad for inputting a channel or a numerical value.
[0096]
Further, the CPU 118 has a program execution function, and the tuner unit, the descrambler 102, the demultiplexer 103, and the decoder units 104 to 104 according to the operation of the operation unit 114 having each operation switch for channel selection, power ON, etc. or the remote control 116. 106, the screen configuration unit 108, the display control unit 109, and the DAC 110 are controlled.
[0097]
FIG. 3 shows the configuration of control software that runs on the CPU 118.
[0098]
In the figure, GUI software (a) is a core part of signal processing in this embodiment, and each control software of (b) to (i) is interface software (driver software for controlling each processing circuit of FIG. ).
[0099]
Hereinafter, the operation of the digital television receiver of this embodiment will be described on the assumption that “data broadcasting news” consisting of character information, image information, and video / audio information is received.
[0100]
<About data broadcasting format>
Data broadcast data used in this embodiment will be described.
[0101]
FIG. 4 is a diagram illustrating an example of received XML data.
[0102]
In the present embodiment, XML data including 20 or more news contents is received, but for the sake of explanation, only two news contents are extracted and shown in FIG. In XML, attribute assignment (semantic assignment) is performed on a character string in a document by a tag (a portion surrounded by <xx> and </ xx>). For example, a character string “data broadcasting news” has an attribute of <title> title. In addition, this tag can be “nested” and includes, for example, a tag <news title></ news title> between <news item> and </ news item> in FIG. Can do.
[0103]
When this received XML data is displayed on the screen, conversion to display XML data is performed by an XML conversion processing program included in the GUI software. In the present embodiment, a specification based on the XHTML specification obtained by reformulating HTML 4.0 with XML 1.0 is used as the display XML specification. An example of the display XML data generated by the XML conversion process is shown in FIG. FIG. 6 shows a display example of the received XML data on the screen.
[0104]
Three news items are displayed on the screen. In each news item, a title, an image (photo), and a news summary are written. When the display XML data in FIG. 5 is viewed, an onclick attribute is attached to the area tag <div> including the title of each news. This means that if the user selects the title area with the cursor etc. and presses the Enter key (or clicks with the mouse pointer), execute the script function indicated by this attribute. A script function called playmovie is executed with an argument of (news.mpeg, 330, 30).
[0105]
In this script function, a process of reproducing a moving image specified in an object window on a screen from a specified location for a specified period is performed. In other words, when the user selects / determines the title of the news with the cursor, news. Playback is performed for 30 seconds from 330 seconds from the beginning of the video file called mpeg. In the present embodiment, JavaScript, which is a script language widely used on homepages, is used.
[0106]
In the present embodiment, not only such data broadcast display but also each news item is printed on paper by a printing process so that the user can easily read the character information. Next, the operation of the CPU 118 will be described in detail.
[0107]
<Data broadcasting reception and storage>
FIG. 7 is a flowchart showing the operation of the CPU 118 at the time of data broadcast reception according to the present embodiment.
[0108]
In step S301, it is determined whether or not a preset data broadcast reception time has been reached. If the reception time has been reached, the process proceeds to step S302. Here, the data reception time can be set in advance by the user. For example, the user can set the reception time while viewing the electronic program guide (EPG).
[0109]
In step S302, tuning is performed by controlling the tuner unit 101, extraction of data broadcast data is started via the descrambler 102 and demultiplexer 103, and when data reception is performed (step S303), data stream processing is performed in step S304. After being decoded into XML text information, image information, and video / audio data by the unit 106, the image information and video / audio data are stored in the hard disk, and the XML text information is stored in the memory 107. Hereinafter, this XML text information is called received XML data.
[0110]
In step S305, action code generation and print XML data are performed (action code generation and print XML data generation). In order to explain this process in detail, FIG. 8 shows a flowchart showing the contents of the process in step S305 in FIG.
[0111]
When the received XML data is read in step S401, a search for a <news item> tag is performed in step S403. If this tag is found, the counter is incremented by 1 in step S404 (the initial value is not shown, but is -1), and the contents of the news item tag, that is, </ news item> appears in step S405. The <news title> tag is searched in the data up to. If the <news title> tag is found, the printing position is calculated in step S407. For the calculation of the printing position, the expression shown as Title (X, Y, W, H) in the equation shown in the upper part of the figure is used. In step S408, data (text) indicating attributes such as a tag for title printing and its display position is added to the printing XML data. FIG. 9 is a diagram showing the contents of the printing XML data output by the process of this flowchart, and the line {circle around (1)} in the figure is output in step S408.
[0112]
Further, a <news> tag is searched in step S409, and if it is found, the print position is calculated in step S411 (the equation of abstract (X, Y, W, H) at the top in the figure is used). In step S412, data indicating attributes such as a summary print tag and display position is added to the print XML data (part (3) in FIG. 9). Further, in step S413, a <news img> tag is searched, and if found, the printing position is calculated in step S415 (the formula of img (X, Y, W, H) in the upper part of the figure is used).
[0113]
In step S416, data indicating attributes such as image printing tags and display positions is added to the printing XML data (line (2) in FIG. 9). Further, in step S417, a <news movie> tag is searched, and if found, the printing position is calculated in step S419 (the expression of code (X, Y, W, H) at the top in FIG. 8 is used). ). In step S420, an action code is generated.
[0114]
In this embodiment, a three-digit number is used as the action code, and numbers from 000 to 999 are sequentially assigned to each action information. After 999, 000 is allocated. For example, if there are 25 action code tags in the received XML data, action codes from 000 to 024 are allocated.
[0115]
When the action code is generated, the attribute data of the <news movie> tag (type = movie / mpeg, starttime = “330”, etc.) and the contents (news.mpeg) are read and stored in the memory 107 together with the action code. The FIG. 10 shows the contents stored in the memory 107.
[0116]
In step S421, data indicating attributes such as a tag for printing an action code and a display position is added (line (4) in FIG. 9).
[0117]
In the present embodiment, the action code is printed in “red”.
[0118]
The printing XML data generated in the above operation is stored in the hard disk in step S306 of FIG.
[0119]
In step S307, if immediate printing is permitted, printing processing is started based on the above-described XML data for printing. Note that permission / prohibition of immediate printing can be set in advance by the user, and if it is prohibited, the user can start printing later by operating the remote controller. Here, the description is continued assuming that immediate printing is permitted.
[0120]
In the printing process in step S308, the contents of the printing XML data are converted into printing bitmap data with a layout, font, and color according to the set style and sent to the printer. If the print content includes image data, the image data stored on the hard disk is read out and converted into a bitmap.
[0121]
The bitmap data for printing is output to the printer 132 via the IEEE 1394 interface 122. When printing is performed, “print log” is transmitted to a host on the Internet in step S309. This “printing slot” will be described later.
[0122]
11 and 12 show examples of print results according to the present embodiment. FIG. 11 shows the entire print, and FIG. 12 is a partially enlarged view. In this example, 21 news (title, image, summary) are printed on A4 paper, and an action code (CODE: xxx) is printed on each news item.
[0123]
<Operation during viewing>
Next, the operation when the user views this data broadcast program while actually viewing the print result will be described. FIG. 13 is a flowchart showing the flow of operation.
[0124]
In step S901, when the user inputs an action code while referring to the print results shown in FIGS. 11 and 12, in step S902, it matches the action code (FIG. 10) stored in the memory 107 by the above-described processing. In step S904, video data reproduction processing is performed. For example, if a code of 000 is input, news. 30 seconds from the 330th second of the video data with the file name mpeg are reproduced. In order to input an action code, the action code button (red button) of the remote control in FIG. 2 is pressed and then a three-digit number is pressed. In addition to the action code key (red button), the remote controller 116 used in the present embodiment is provided with a key, but the action code print color (red) on the print result and the remote control button “red” Therefore, the user is prevented from pressing another key by mistake.
[0125]
<Print log>
In this embodiment, every time a printing process is performed, a “print log” is transmitted to a host on the Internet. FIG. 20 shows an example of recorded information.
[0126]
The CPU 118 controls the modem 121, connects to a predetermined host, and transmits the information of FIG. The host can be operated by a TV broadcasting station or operated by the content creator, but in the case of a host operated by the content creator, access information to the host must be described in the data broadcasting content. is there. The <logurl> tag in FIG. 4 is access information to the host.
[0127]
In this way, the print history is transmitted to the host side, so that the content providing side can grasp what information has passed to the user and, for example, print ink cartridges or the like for users who have performed a lot of printing processing. It is used to provide toner services and print paper services.
[0128]
In the present embodiment, the contents of the printing XML data specify the position information and font size of characters and images, but this numerical value is a position / corresponding one-to-one with the printing dot of the printing apparatus. It is not a size but a value based on about 100 dpi, and at the time of printing, the dot of the font size and position is expanded in accordance with the capability of the printing apparatus.
[0129]
In this embodiment, a three-digit number is used for the action code. However, the number of digits and the range of the number are not limited to this, and may be any number of digits and a range of numbers.
[0130]
In the present embodiment, an example is shown in which the display layout is not included in the received “reception XML data”. However, the present invention is not limited to this example. For example, the received XML data includes layout information for display. May be.
[0131]
In this embodiment, the hard disk device is used as a recording device for recording the received data broadcast content. However, the present invention is not limited to this, and other recording devices may be used. Similarly, in this embodiment, the data for recording the association between the code and the display XML data is stored in the memory. However, the present invention is not limited to this, and other recording devices may be used. In the present embodiment, the example of “data broadcasting news” has been described as an example of data broadcasting content. However, the data broadcasting content is not limited to this. For example, a catalog is printed on a shopping program, and an action code is displayed. It may be an embodiment in which an introduction video of a corresponding product is played when the user inputs. Further, the movie guide program may be printed as a movie list, and when an action code is input, an advertisement video of the movie may be played.
[0132]
Further, for example, in an educational program, when an action code printed on a problem sheet is input, a moving image showing how to solve the problem may be displayed.
[0133]
[Second Embodiment (Bitmap Data Broadcast)]
The first embodiment of the present invention described in detail above provides a user interface that generates print data by converting XML data received as a data broadcast, and allows the user to view the data broadcast more comfortably. However, the data broadcasting format is not limited to this, and data broadcasting in which printing data is transmitted from the broadcasting station from the beginning is also possible. The present invention can provide an environment in which a user can comfortably view even such data broadcasting. An example is shown below.
[0134]
Regarding the configuration of the television receiver used in this embodiment, since it has the same configuration as the configuration of FIG. 1 shown in the first embodiment, the remote control shown in FIG. 2, and the software structure shown in FIG. The explanation of the constituent parts is omitted.
[0135]
<Processing from reception to printout>
Hereinafter, the operation of the digital television receiver according to the present embodiment will be described assuming a shopping program using data broadcasting.
[0136]
<About data broadcasting format>
This shopping data broadcast is composed of three data: “product catalog” print data centered on text and image data, moving image data containing an introduction video of each product, and display XML data. The “product catalog” print data is one piece of image data per print, and the image includes a plurality of product photos, descriptions, product codes, and the like.
[0137]
<Data broadcasting reception and storage>
FIG. 14 is a flowchart showing the operation of the CPU 118 when receiving a data broadcast.
[0138]
In step S1401, it is determined whether or not the data broadcasting reception time set in advance is reached. If the reception time is reached, the process proceeds to step S1402. Here, the data reception time can be set in advance by the user. For example, the user can set the reception time while viewing the electronic program guide (EPG).
[0139]
In step S1402, tuning is performed by controlling the tuner unit 101, extraction of data broadcast data is started via the descrambler 102 and the demultiplexer 103, and when data reception is performed (step S1403), data stream processing is performed in step S1404. After being decoded into XML text information, print data (image data), and video / audio data by the unit 106, the print data and video / audio data are stored in the hard disk, and the XML text information is stored in the memory 107. Hereinafter, this XML text information is called received XML data.
[0140]
In step S1405, action code generation is performed. In this embodiment, a different “action code” is assigned to each print, and is associated with the file name of the display XML data and stored in the memory. For example, information as shown in FIG. 15 is stored in the memory. In the present embodiment, a 3-digit number is used for the action code, and numbers from 000 to 999 are assigned in order to each action information. After 999, 000 is allocated.
[0141]
If immediate printing is permitted in step S1407, printing processing is started based on the above-described printing XML data. Note that permission / prohibition of immediate printing can be set in advance by the user, and if it is prohibited, the user can start printing later by operating the remote controller. Here, the description is continued assuming that immediate printing is permitted.
[0142]
In the printing process in step S1408, the print data (product catalog) is combined with the action code generated in the above process, converted into print bitmap data, and sent to the printer. The bitmap data for printing is output to the printer 132 via the IEEE 1394 interface 122.
[0143]
FIG. 16 shows an example of the print result. In this example, two photos are posted on A4 paper, and product names, descriptions, and product codes of a plurality of products shown in the photos are described around the photos. The action code generated by the above-described processing is printed on the upper right side of the page.
[0144]
<Operation during viewing>
The operation when the user views the data broadcast program will be described below.
[0145]
When the user presses an “action code” button (red button) and a numeric key on the remote controller while watching normal television, display XML data corresponding to the print code is read and displayed on the screen. FIG. 17 shows an example of the display XML data. FIG. 18 shows a flowchart of the control.
[0146]
In FIG. 18, when the code input by the user is recognized in step S1801, in step S1802, it is determined whether the code is only a number or “action code button (red button)” + number, and only the number is used. If there is, it is processed in step S1803 as a code input for selecting a normal television channel.
[0147]
On the other hand, if it is action code button (red button) + number, it is compared with the action code of the data (FIG. 15) stored in the memory 107 in step S1805, and if there is a match, in step S1806, it corresponds. The display XML data to be displayed is displayed.
[0148]
FIG. 19 shows a state when the display XML data is displayed. Since the script is described in the display XML data in this example, when the user types the product code while viewing the screen shown in FIG. 19, the product introduction video of the product code is displayed in the “moving area” in the figure. The
[0149]
In this way, even during normal television viewing, the data broadcast viewing screen as shown in FIG. 19 can be easily transferred by simply inputting the “action code” button and numeric keys. Moreover, in the conventional technology, when many product catalogs are printed, it is difficult to know which print corresponds to which data broadcast content (or display screen). In this embodiment, the received print Since different action codes for each print are combined and printed on the data, the data broadcast can be easily viewed simply by typing this action code.
[0150]
<General publication support>
In the above description, the digital TV receiving apparatus receives data broadcast, prints out the information, and the user operates while watching the print. There may be a case where a general publication or printed matter such as a magazine or an advertisement is used without directly printing out with the receiving device. In the present invention, even in such a case, the user can easily view the data broadcast.
[0151]
The flow of processing will be described again using the flowchart of FIG.
[0152]
First, when a code input is recognized in step S1801, it is determined in step S1802 whether the number is only a number. If the code is only a number, a TV reception channel setting process is performed in step S1803. If it is determined in step S1804 that the “red” button + number, it is processed as an action code in steps S1805 and S1806 as in the above description.
[0153]
If it is determined in step S1808 that “green” + the number, it is checked in step S1809 whether the code is already stored in the memory. If the code is not stored in the memory, the tuner unit 101, The descrambler 102 and the demultiplexer 103 are controlled to receive a predetermined data broadcast, and a “general print code conversion table” is acquired from the received data in step S1811.
[0154]
This table associates the “general print codes” assigned to general prints with the “reception parameters” necessary for reception, such as the start date and time of data broadcasting, broadcast channels, etc. It is a data broadcast that is being broadcast repeatedly. If a match with the input code is found in step S1812, the reception parameter associated with the code is acquired in step S1813. In step S1813, data reception is started simultaneously with the start of data broadcasting from the acquired reception parameters. If the broadcast is not being performed at that time, a standby state is entered.
[0155]
After the reception, display XML data, image data, and video / audio data are stored in the hard disk 123 in step S1814, and information that associates the code input in step S1815 with the display XML data is stored in the memory 107. The correspondence information between the input code stored in the memory 107 and the display XML data is as follows.
[0156]
As described above, in the present invention, as in the case of data broadcasting content that requires printing on a television receiver, even in the case of data broadcasting content using general printed matter such as magazines and newspapers, it is described in printing. Images, video and audio related to information on paper can be played and displayed with a very simple operation by simply entering a code.
[0157]
In addition, there is a possibility that the code assigned to the general printed matter will match the code assigned to another operation in this television receiver. In the present invention, a “color button” is provided on the remote control, and the color and print By associating the printing color of the code or the printing color of the general printed matter code, it is possible to prevent erroneous input of codes of different categories. For example, according to this embodiment, by printing the code of a general printed matter in “green”, it is easily distinguished from the “red” action code assigned to the one printed by the television receiver of the present invention in the previous embodiment. As a result, the user can easily understand that the input of the “green” button + code may be performed.
[0158]
In the present embodiment, the contents of the printing XML data specify the position information and font size of characters and images, but this numerical value is a position / corresponding one-to-one with the printing dot of the printing apparatus. It is not a size but a value based on about 80 dpi, and at the time of printing, the size of the font and the dot at the position are expanded in accordance with the capability of the printing apparatus.
[0159]
The above-described control methods can be realized by storing and operating the program according to the flowcharts of FIGS. 7, 8, 13, 14, and 18 described above in, for example, the hard disk 123.
[0160]
The above embodiment can be modified as follows.
[0161]
(1) In the embodiment, a 3-digit number is used for the action code. However, the number of digits and the range of the number are not limited to this, and may be any number of digits and a range of numbers.
[0162]
(2) In the embodiment, an example has been shown in which the received “reception XML data” already includes a print layout. However, the present invention is not limited to this. For example, XML data indicating the data contents and XML data indicating the layout are included. It may be different.
[0163]
(3) In the embodiment, the hard disk device is used as the recording device for recording the received data broadcast content. However, the present invention is not limited to this, and other recording devices may be used. Similarly, in this embodiment, the data for recording the association between the code and the display XML data is stored in the memory. However, the present invention is not limited to this, and other recording devices may be used.
[0164]
(4) In the embodiment, the example of “data broadcasting shopping” has been described as an example of data broadcasting content. However, the data broadcasting content is not limited to this, and when a code printed on a cooking magazine is input, the magazine In the embodiment in which the image of how to make a dish described in the above is reproduced on the screen, for example, when a code printed in a movie information magazine is input, a list of movies being displayed is displayed, and each page of the paper is displayed. An embodiment in which a promotional video of a movie is played when a code printed next to the movie is input may be used.
[0165]
The present invention is not limited to the apparatus of the above-described embodiment, and may be applied to a system constituted by a plurality of devices or an apparatus constituted by one device. A storage medium storing software program codes for realizing the functions of the above-described embodiments is supplied to a system or apparatus, and a computer (or CPU or MPU) of the system or apparatus reads and executes the program codes stored in the storage medium. Needless to say, it will be completed by doing.
[0166]
In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention. As a storage medium for supplying the program code, for example, a floppy disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, and a ROM can be used. In addition, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also the OS running on the computer based on the instruction of the program code performs the actual processing. Needless to say, a case where the function of the above-described embodiment is realized by performing part or all of the processing is also included.
[0167]
Furthermore, after the program code read from the storage medium is written to the memory provided in the function expansion board inserted in the computer or the function expansion unit connected to the computer, the program code is expanded based on the instruction of the next program code. It goes without saying that the functions of the above-described embodiments may be realized by performing some or all of the actual processing by the CPU or the like provided on the expansion board or the expansion unit.
[0168]
【The invention's effect】
As described above in detail, according to the present invention, in data broadcasting in digital television broadcasting, an information providing data broadcasting service that has not been made possible by linking print output with video, image, and sound becomes possible. Utilizing the advantages of “paper” such as “light”, “easy to carry”, and “easy to see”, users can browse through a lot of information on paper in a free place / style to find information they are interested in It is possible to obtain more detailed information such as images, sounds, characters, images, etc. on the TV screen by just entering a few digits (for example, 3 digits) of the code that is found and interesting. In addition, it is possible to use only a simple code input operation using a conventional remote controller without requiring a special user interface device to receive the new data broadcasting service as described above.
[0169]
Conventionally, there has been a proposal of a technique that can print a code of about 4 to 9 digits on a television program guide of newspapers or magazines, and can execute a recording reservation when the user inputs it. In addition, it can cope with various contents of data broadcasting, and the number of digits of the code can be remarkably reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an overall configuration of a digital television receiver according to a first embodiment of the present invention.
FIG. 2 is a block diagram showing a remote control of a television receiver.
FIG. 3 is a diagram illustrating a software configuration of a microcomputer.
FIG. 4 is a diagram illustrating an example of received XML data.
FIG. 5 is a diagram showing an example of display XML data according to the first embodiment.
FIG. 6 is an example of a printing result by the printing process according to the first embodiment.
FIG. 7 is a flowchart showing the operation of the CPU 108 when receiving a data broadcast according to the first embodiment.
FIG. 8 is a flowchart showing processing for generating print XML data from received XML data by the CPU.
FIG. 9 is a diagram illustrating an example of XML data for printing.
FIG. 10 is a diagram showing action codes stored in a memory and corresponding data information.
FIG. 11 is a diagram illustrating an entire printing result of printing XML data.
FIG. 12 is an enlarged view of a part of a printing result of printing XML data.
FIG. 13 is a flowchart showing the operation of a CPU when viewing a data broadcast.
FIG. 14 is a flowchart showing the operation of the CPU when receiving a data broadcast in the second embodiment.
FIG. 15 is a diagram showing action codes and correspondence information stored in a memory according to the second embodiment.
FIG. 16 is a diagram illustrating an example of a printing result in the second embodiment.
FIG. 17 is a diagram showing an example of display XML data in the second embodiment.
FIG. 18 is a flowchart showing an operation when a user inputs a code in the second embodiment.
FIG. 19 is a diagram showing an example of a display screen in the second embodiment.
FIG. 20 is a diagram showing the contents of information stored in a memory according to the second embodiment.
[Explanation of symbols]
100 Digital TV receiver
101 Tuner
102 Descrambler
103 Demultiplexer
104 Video decoder
105 Audio decoder
106 Data stream processing unit
107 memory
108 Screen component
109 Display control unit
112 Image display
113 Audio output unit
114 Operation unit
116 remote control
117 IC card controller
121 modem
123 hard disk
201 VTR
202 Printer

Claims (6)

Receiving means for receiving data for data broadcasting including a plurality of video contents;
Storage means for storing the plurality of video contents included in the data broadcasting data received by the receiving means;
Generating means for generating different numerical codes for the plurality of video contents stored by the storing means ;
Print control means for outputting, to a printing apparatus, print data in which a plurality of images related to the plurality of video contents and a numeric code generated by the generation means for each video content are associated with each other;
Input means provided with a numeric button for the user to select and input an arbitrary numeric code among a plurality of numeric codes arranged in association with a plurality of images related to the plurality of video contents in the print data When,
A signal processing apparatus comprising: processing means for executing processing for reproducing video content corresponding to a numeric code input by the input means among the plurality of video contents stored by the storage means . The signal processing apparatus according to claim 1, wherein the generation unit generates different numeric codes for the plurality of video contents according to a predetermined time. The signal processing apparatus according to claim 1 , wherein the printing control unit outputs the printing data to a printing apparatus in response to a predetermined time. A receiving step of receiving data for data broadcasting including a plurality of video contents;
A storage step of storing the plurality of video contents included in the data broadcast data received in the reception step;
A generating step for generating different numeric codes for the plurality of video contents stored in the storing step ;
A print control step of outputting, to a printing apparatus, print data in which a plurality of images related to the plurality of video contents and the numeric codes generated by the generation step are associated with each video content, respectively;
An input step provided with a numeric button for the user to select and input an arbitrary numeric code among a plurality of numeric codes arranged in association with a plurality of images related to the plurality of video contents in the print data When,
And a processing step of executing a process of playing back the video content corresponding to the numeric code input in the input step among the plurality of video contents stored in the storage step . 5. The signal processing method according to claim 4 , wherein, in the generation step, different numeric codes are generated for the plurality of video contents according to a predetermined time. 5. The signal processing method according to claim 4 , wherein, in the printing control step, the printing data is output to a printing apparatus when a predetermined time is reached.

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