JP3637292B2 - Conversion device and television system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a data conversion device, a program, and a television system, and in particular, for example, a conversion device, a conversion method, a program, and a television for converting first data described in a first language into second data described in a second language. About the system.
[0002]
[Prior art]
A conventional conversion device of this type is described in Japanese Patent Laid-Open No. 5-197560. This prior art converts a source program (first data) described in a source language (first language) into a target program (second data) described in a target language (second language). Necessary data is extracted from the source language specification data file, conversion rule data file, and target language specification data file, and lexical conversion, syntax conversion, and semantic conversion are performed to generate source data for converting the source program into the target program. Then, using this source data, the source program is analyzed, converted into intermediate data in a syntax tree format, and the intermediate data is converted into a target program.
[0003]
Further, there are the following as conventional distributed database technologies. When a keyword indicating an item of data required by the user is sent to the database, the database identifies data having the keyword. Then, the identified data, that is, the data required by the user is extracted, and this data is sent from the database to the user.
[0004]
[Problems to be solved by the invention]
In a conventional conversion device, depending on the language type, data described in the first language may not be converted into data described in the second language. Suppose that the television system 2 shown in FIG. 17 is formed using the conventional conversion apparatus 1 and the distributed database technology. In the television system 2, the server 4 transfers data to the television 3 in response to a transfer request from the television 3 as a client to the server 4.
[0005]
The television system 2 includes a television 3 and at least one site 5, which are connected via the server 4 and the conversion device 1. These are connected to communication networks 6a, 6b, 6c such as the Internet.
[0006]
The data of the site 5 is converted by the conversion device 1 and stored in the database 7 of the server 4. When a transfer request command is issued from the television 3 to the server 4, the converted data stored in the database 7 of the server 4 is transferred to the television 3 in accordance with the transfer request command and displayed on the display 8 of the television 3. . Only the data described in BML can be displayed on the display 8 of the television 3.
[0007]
If the data requested by the user to transfer to the server 4 is data that has not been converted and is written in HTML, the data corresponding to the transfer command is not displayed on the display 8. For this reason, the user has determined that the device has failed, and there has been a risk that the manufacturer will be inundated with complaints.
[0008]
The present invention is to achieve a passive object of not outputting unconverted data from the conversion device 1. On the other hand, the distributed database technology is a technology for achieving a positive purpose of outputting data required by a user from a database. Therefore, the purpose and the problem are contradictory, and it has been difficult for those skilled in the art to apply the database technology to the conversion device 1.
[0009]
The present invention provides a conversion device that reliably identifies first data that can be converted into second data and does not output data that has not been converted into second data.
[0010]
[Means for Solving the Problems]
The present invention includes an input receiving unit that receives input of first data;
A transmission source identifier acquisition means for acquiring a transmission source identifier for identifying a transmission source of data received by the input reception unit;
A sender identifier storage means for storing a sender identifier of the user;
Based on a comparison between the transmission source identifier acquired by the transmission source identifier acquisition unit and the transmission source identifier stored in the transmission source identifier storage unit, the first data received by the input reception unit is the first data An identification means for identifying whether or not the data is described in a language;
An extraction unit for extracting the first data identified as data described in a first language by the identification unit;
A conversion unit for converting the first data extracted by the extraction unit into second data described in a second language;
An output unit that outputs the second data.
[0011]
The transmission source identifier of the first data input to the input receiving unit of the conversion device is reliably identified by the identification unit of the conversion device, and compared with the transmission source identifier of the user stored in the transmission source identifier storage unit, It is determined whether data input to the input receiving unit is described in the first language. Then, the extracted data is converted into second data described in the second language by the conversion unit of the conversion device, and is output from the output unit of the conversion device. That is, data other than the first data among the data input to the input receiving unit is not output from the output unit of the conversion device.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a television system 12 including a conversion device 10. In the television system 12, the server 16 transfers desired data to the television 14 in response to a transfer request from the client television 14 to the server 16.
[0013]
Television system 12 includes one or more sites 18, conversion device 10, server 16, and television 14.
[0014]
The site 18 and the conversion device 10 are connected via a communication network 20 such as the Internet.
[0015]
The conversion device 10 converts the first data described in the first language into the second data described in the second language. The conversion device 10 is configured by a gateway so that it can be connected to different communication networks. In the present embodiment, the first language is C-HTML, for example, and the first data is data described in C-HTML, for example. The first data has a flag for identifying whether the data is permitted to be converted by the conversion device 10. The second language is, for example, BML, and the second data is, for example, data described in BML.
[0016]
As shown in FIG. 2, the conversion device 10 includes a modem 22 that receives input of data transmitted from the site 18 via the communication network 20, a modem 26 that outputs second data to the server 16 via the communication network 24, A CPU 28 for performing predetermined processing and a recording device 30 such as a ROM and a RAM for recording necessary information including a program for realizing data conversion on the CPU 28 are provided, and these are connected by a bus 32.
[0017]
FIG. 3 is a block diagram showing functions of the conversion device 10. The input receiving unit 34 receives an input of data sent from the site 18. This data covers various languages such as data described in HTML and data described in C-HTML.
[0018]
The identification unit 36 identifies first data that is permitted to be converted by the conversion device 10 among the data input to the input receiving unit 34.
[0019]
The identification unit 36 includes flag identification means 38 that identifies a flag. The flag identifies whether the data is permitted to be converted by the conversion device 10. FIG. 4 shows the first data described in the first language. In the first data, a flag is defined using the description of the comment. Comment is <! In the case of − − 0 − −>, the flag is in an OFF state, and is data that is permitted to be converted by the conversion device 10. In addition, comment is <! In the case of ——1 ——>, the flag is in an ON state, and is data that is prohibited from being converted by the conversion device 10. The flag is ignored by the television 14.
[0020]
Further, the identification unit 36 shown in FIG. 3 includes an instruction recording unit 40 that records an instruction permitted by C-HTML. The command recording means 40 includes HTML, HEAD, META, BODY, TITLE, BR, P, A, CENTER, DIV, HR, FONT, IMG, Hn, BLOCKQUAUTE, MARQUEE, BLINK, UL, OL, LI, DL, DT. , DD, PLAINTEXT, PRE, MENU, DIR, FORM, INPUT TYPE = “text”, INPUT TYPE = “password”, INPUT TYPE = “checkbox”, INPUT TYPE = “radio”, INPUT TYPE = “hPETYPETYPE” = “Submit”, INPUT TYPE = “reset”, TEXTAREA, SELECT, OPTION, and other instructions permitted by C-HTML are stored.
[0021]
Moreover, the identification part 36 has the command identification means 42 which identifies 1st data. Specifically, if all the tags included in the data are included in the instruction permitted by the C-HTML stored in the instruction recording means 40, this data is determined to be the first data. .
[0022]
The extraction unit 44 extracts the first data identified by the identification unit 36 and permitted to be converted by the conversion device 10. The extraction unit 44 includes a first extraction unit 44a and a second extraction unit 44b. The first extraction unit 44 a sends the extracted first data to the conversion unit 46. In addition, the second extraction unit 44 b sends data other than the first data that is permitted to be converted by the conversion device 10 to the erasing unit 48 among the data received by the input receiving unit 34.
[0023]
The conversion unit 46 performs a process of converting the first data described in the first language permitted to be converted by the conversion device 10 into the second data described in the second language. FIG. 5 shows a correspondence pattern between tags written in the first language and tags written in the second language. That is, the first pattern that does not perform the conversion of converting the tag 1 to the tag 1 and the tag described in the first language that converts the tag 2 to the tag 2 ″ is converted to the tag described in the second language. A pattern, a third pattern ignoring a tag described in the first language ignoring the tag 3, a one type described in the first language converting a tag 4 to the tags 4-1,. 4th pattern for converting the tag of n into tags of n types described in the second language, n types of tags described in the first language of converting tags 5-1,. There is a fifth pattern for converting the text into one type of tag described in the second language, and a sixth pattern for converting the text described in the first language into which the tag 6 is converted into a default value.
[0024]
FIG. 6 shows the correspondence between tags written in the first language and tags written in the second language. The tag <HTML> indicating the declaration of the HTML file belongs to the second pattern and is converted into a tag <BML> indicating the declaration of the BML file. A tag <HEAD> indicating page information specification and a tag <TITLE> indicating page title specification belong to the third pattern and are deleted. Further, the tag <BODY> indicating the designation of display content belongs to the first pattern and becomes the tag <BODY>. A tag <BR> representing the designation of a new line and a tag <LI> representing the list item belong to the fifth pattern, and are converted into a tag <BR> representing the designation of a new line. Furthermore, the tag <UL> indicating creation of a list with symbols belongs to the third pattern and is deleted.
[0025]
Since there is the correspondence relationship shown in FIG. 6, the conversion unit 46 converts the first data described in the first language shown in FIG. 4 into the second data described in the second language shown in FIG.
[0026]
That is, <HTML> in the second row of the first data is converted to <BML>. Then, <HEAD>, <TITLE> commodity list </ TITLE>, </ HEAD> on the third, fourth, and fifth lines of the first data are deleted. Also, <BODY> and product list <BR> in the sixth and seventh lines of the first data are <BODY> and product list <BR>, respectively. <UL> in the 8th row of the first data is deleted. The <LI> handbag, <LI> bracelet, and <LI> necklace in the 9th, 10th, and 11th lines of the first data are converted into a <BR> handbag, <BR> bracelet, and <BR> necklace, respectively. </ UL> in the 12th line of the first data is deleted. <BODY> in the 13th row of the first data becomes <BODY>. </ HTML> on the 14th line of the first data is converted to </ BML>.
[0027]
FIG. 8 is a diagram showing a display example that is a result of interpreting and executing the first data described in the first language shown in FIG. 4, and FIG. 9 is a diagram showing a second example described in the second language shown in FIG. It is a figure which shows the example of a display which is a result of having interpreted and performed data. FIG. 9 differs from FIG. 8 in that the tag <LI> for displaying the list item is converted to a tag <BR> indicating the designation of a line feed, so the symbols “·” described before the words of the handbag, bracelet, and necklace respectively. "Is deleted, and each word is displayed one line apart.
[0028]
The erasure unit 48 illustrated in FIG. 3 erases data other than the first data permitted to be converted by the conversion device 10 among the data received by the input reception unit 34.
[0029]
The output unit 48 outputs the second data converted by the conversion unit 46 to the server 16.
[0030]
The server 16 is a computer that executes processing in response to a request from the television 14. As shown in FIG. 1, the server 16 has a database 52 for storing data, and the database 52 stores second data. Then, a transfer request command from the user is received via the communication network 54 such as the Internet, and in response thereto, the second data is transferred to the television 14 via the communication network 54.
[0031]
The television 14 receives the second data, interprets the received content, and displays the image information on the display 56.
[0032]
The operation of the system of the present invention will be described with reference to FIG.
(Step S <b> 401) The input receiving unit 34 of the conversion apparatus 10 receives an input of data sent from the site 18.
(Step S <b> 402) The data received by the input receiving unit 34 is sent to the flag identifying unit 38 of the identifying unit 36.
(Step S403) The flag identifying means 38 adds <! To a comment that is a flag included in the data. ― ― 0 ― Identifies whether or not> is included. <! In the case where “--0->” is not included, it is determined that this data is data that is prohibited from being converted by the conversion device 10. <! In the case where “--0->” is included, it is determined that this data is data permitted to be converted by the conversion device 10.
(Step S404) The flag identifying means 38 outputs the data determined to be prohibited from being converted by the conversion device 10 to the second extraction unit 44b.
(Step S <b> 405) The flag identifying unit 38 outputs data determined to be permitted to be converted by the conversion device 10 to the instruction identifying unit 42. The instruction identifying means 42 calculates the number of tags included in this data. In the present embodiment, it is assumed that there are n pieces.
(Step S406) The instruction included in the first tag is compared with the instruction permitted by C-HTML stored in the instruction recording means 40. If the instruction included in the first tag is not included in the instruction permitted by the C-HTML stored in the instruction recording means 40, it is determined that the instruction is not the first data, and the process proceeds to step S404. Is output to the second extraction unit 44b.
[0033]
If the instruction included in the first tag is included in an instruction permitted by the C-HTML stored in the instruction recording means 40, the process proceeds to step S407.
(Step S407) The instruction included in the i-th tag is compared with the instruction permitted by the C-HTML stored in the instruction recording means 40. If the instruction included in the i-th tag is not included in the instruction permitted by the C-HTML stored in the instruction recording means 40, it is determined that the instruction is not the first data, and the process proceeds to step S404. Is output to the second extraction unit 44b.
(Step S408) If the instruction included in the i-th tag is included in an instruction permitted by the C-HTML stored in the instruction recording means 40, i is incremented by one.
(Step S409) The magnitude relationship between i and n is compared. If i ≦ n, the process proceeds to step S407.
(Step S410) If i> n, it is determined that this data is the first data, and the first data is output to the extraction unit 44a.
(Step S411) The first extraction unit 44a extracts the first data permitted to be converted by the conversion device 10, and outputs the first data from the first extraction unit 44a to the conversion unit 46. In the conversion unit 46, the second data Is converted to The converted second data is sent to the output unit 50.
(Step S412) Of the data received by the input receiving unit 34, data other than the first data permitted to be converted by the conversion device 10 is sent from the second extracting unit 44b to the erasing unit 48 and erased. The Therefore, output of unconverted data can be reliably prevented, and user confusion can be prevented.
[0034]
The output unit 50 outputs the second data to the server 16. Then, the second data is stored in the database 52 of the server 16.
[0035]
Then, the television 14 is activated, and a second data transfer request command is issued to the server 16 via the communication network 54. Then, the server 16 receives this and transfers the second data to the television 14. The television 14 receives the second data via the communication network 54, interprets the received content, and displays the image information on the display 56 of the television 14. Since the second data is data described in BML that can be displayed on the display 56, the user can surely view the information.
[0036]
In the present embodiment, the data whose flag is OFF is permitted to be converted by the conversion device 10, but the data whose flag is ON is permitted to be converted by the conversion device 10. It is also possible to use the data.
[0037]
Further, although the conversion unit 46 of the conversion device 10 converts the tag, the content surrounded by the tag may be converted. Further, all of the tags or contents may be converted, or a part of each may be converted.
[0038]
Moreover, although this Embodiment used the converter 10 for the television system 12, you may use the converter 10 for a personal computer system.
[0039]
In this embodiment, the identification unit 36 of the conversion apparatus 10 includes the flag identification unit 38, but the flag identification unit 38 may not be included.
[0040]
In this embodiment, the conversion device 10 determines whether or not the first data is present by the command identifying unit 42, but may be determined by the flag identifying unit 38. For example, if the data comment is <! ― ― C-HTML ― ―> It may be judged whether or not.
[0041]
In the present embodiment, when all tags included in the data are included in an instruction permitted by C-HTML stored in the instruction recording means 40, the data is described in the first language. The first data was determined. However, when some tags included in the data satisfy this requirement, it may be determined that the data is the first data described in the first language.
[0042]
The first language is C-HTML, but other languages may be used.
[0043]
Further, although the second language is BML, other languages may be used.
[0044]
Further, FIG. 7 shows the correspondence between the first data described in the first language and the second data described in the second language, but the present invention is not limited to this. For example, a correspondence relationship as shown in FIG.
[0045]
A tag <title> indicating designation of a page title belongs to the second pattern and is converted into a tag <tit>. A tag <V> that defines a table column belongs to the second pattern and is converted into a tag <tr>. The tag <h> defining the table row belongs to the third pattern and is deleted. The tag <text> that specifies the display color of the character string belongs to the second pattern, and is converted to <text col = black> that specifies the display color of the tag character string to be black. A tag <field length => that designates the length of the blank field belongs to the fourth and sixth patterns, a tag <field length = 20> that designates the length of the blank field as 20, and a tag <that represents the designation of a line feed < Converted to CR>.
[0046]
Since there is the correspondence relationship shown in FIG. 11, the conversion unit 46 converts the first data described in the first language shown in FIG. 12 into the second data described in the second language shown in FIG.
<HEAD> in the second row of the first data is deleted. The <title> test </ title> in the third line of the first data is converted into <tit> test </ tit>. Then, </ HEAD> in the fourth line of the first data is deleted. Also, <V> in the fifth row of the first data is converted to <tr>. <H> on the sixth line of the first data is deleted. In addition, each of <text> question 1 <text> answer and <field length = 10> on the sixth and seventh lines of the first data is <text col = black> question 1 <text col = black> answer, < field length = 20><CR>. Also, </ h> and <h> in the 8th and 9th lines of the first data are deleted. Further, <text> question 2 <text> answer and <field length = 10> on lines 9 and 10 are <text col = black> question 2 <text col = black> answer, <field length = 20, respectively. ><CR> respectively. Also, </ h> on the 11th line of the first data is deleted. Then, </ V> in the 12th row of the first data is converted to </ tr>.
[0047]
FIG. 14 is a diagram showing a display example that is a result of interpreting and executing the first data described in the first language shown in FIG. 12, and FIG. 15 is a diagram showing a second example described in the second language shown in FIG. It is a figure which shows the example of a display which is a result of having interpreted and performed data. FIG. 15 differs from FIG. 14 in that the character color is designated as black and the length of the blank field is doubled.
[0048]
Further, in the present embodiment, the instruction recording unit 40 is provided in the identification unit 36, and when the data tag is included in the instruction permitted in the first language, the data is determined to be the first data. However, if the source identifier that identifies the data source includes the first data, it may be determined that this data is the first data.
[0049]
As shown in FIG. 16, the identification unit 36 includes a transmission source identifier acquisition unit 58 that acquires a transmission source identifier of data, a transmission source identifier storage unit 60 that stores a transmission source identifier of first data, and a transmission source identifier acquisition unit 58. The transmission source identifier identifying means 62 for identifying whether or not the data is the first data based on the transmission source identifier acquired in step S1 and the transmission source identifier stored in the transmission source identifier storage means 60.
[0050]
The data received by the input receiving unit 34 is sent to the transmission source identifier acquisition means 58 of the identification unit 36, and the transmission source identifier of the data is acquired. Then, the transmission source identifier is compared with the transmission source identifier of the first data stored in the transmission source identifier storage unit 60 by the transmission source identifier identification unit 62. Judged as one data.
[0051]
Further, the transmission source identifier storage means 60 may store not only the transmission source identifier of the first data but also the transmission source identifier of the data that is not the first data. In this case, if the transmission source identifier acquired by the transmission source identifier acquisition unit 58 matches the transmission source identifier of the first data stored in the transmission source identifier storage unit 60, this data is used as the first data. Judge that there is. Further, when the transmission source identifier acquired by the transmission source identifier acquisition unit 58 matches the transmission source identifier of the data that is not the first data stored in the transmission source identifier storage unit 60, this data is the first data. Judge that it is not.
[0052]
【The invention's effect】
The user can be prevented from being confused by reliably identifying the first data that can be converted into the second data out of the data received by the input receiving unit and not outputting the data that has not been converted into the second data.
[Brief description of the drawings]
FIG. 1 is a diagram showing a television system. FIG. 2 is a structural diagram of a conversion device. FIG. 3 is a block diagram showing functions of the conversion device. FIG. 4 is a diagram showing first data written in a first language. FIG. 6 is a diagram showing a correspondence pattern between tags written in the first language and tags written in the second language. FIG. 6 shows a correspondence relationship between tags written in the first language and tags written in the second language. FIG. 7 is a diagram showing the second data described in the second language. FIG. 8 is a diagram showing a display example as a result of interpreting and executing the first data. FIG. 9 is a result of interpreting and executing the second data. Fig. 10 is a diagram showing a display example. Fig. 10 is a flowchart of a conversion device. Fig. 11 is a diagram showing another embodiment. Fig. 12 is a diagram showing another embodiment. Fig. 13 is a diagram showing another embodiment. FIG. 14 is a diagram showing another embodiment. FIG. 15 is a diagram showing another embodiment. FIG. 16 is another embodiment. Figure [EXPLANATION OF SYMBOLS] shown Figure 17 is a television system incorporating the converter shown the
DESCRIPTION OF SYMBOLS 10 ... Converter 12 ... Television system 34 ... Input reception part 36 ... Identification part 38 ... Flag identification means 40 ... Command recording means 42 ... Instruction identification means 46 ... Conversion part 50 ... Output part

Claims (5)

An input receiving unit for receiving input of the first data;
A transmission source identifier acquisition means for acquiring a transmission source identifier for identifying a transmission source of data received by the input reception unit;
A sender identifier storage means for storing a sender identifier of the user;
Based on a comparison between the transmission source identifier acquired by the transmission source identifier acquisition unit and the transmission source identifier stored in the transmission source identifier storage unit, the first data received by the input reception unit is the first data An identification means for identifying whether or not the data is described in a language;
An extraction unit for extracting the first data identified as data described in a first language by the identification unit;
A conversion unit for converting the first data extracted by the extraction unit into second data described in a second language;
An output unit that outputs the second data. The first data has a flag for identifying whether or not the conversion device performs conversion,
The identifying means comprises flag identifying means for identifying whether the flag is identified and whether or not the conversion processing by the converting device is permitted;
The conversion apparatus according to claim 1, wherein the conversion process is performed on the first data identified to be permitted to be converted.   The conversion apparatus according to claim 1, wherein the second language is BML.   The conversion device according to claim 1, wherein the first language is C-HTML.   A television system comprising the conversion device according to any one of claims 1 to 4 and a television.

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