WO2014002281A1 - 文書処理システム、電子文書、文書処理方法及びプログラム - Google Patents
文書処理システム、電子文書、文書処理方法及びプログラム Download PDFInfo
- Publication number
- WO2014002281A1 WO2014002281A1 PCT/JP2012/066818 JP2012066818W WO2014002281A1 WO 2014002281 A1 WO2014002281 A1 WO 2014002281A1 JP 2012066818 W JP2012066818 W JP 2012066818W WO 2014002281 A1 WO2014002281 A1 WO 2014002281A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- character code
- font data
- document processing
- characters
- processing system
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F40/00—Handling natural language data
- G06F40/10—Text processing
- G06F40/103—Formatting, i.e. changing of presentation of documents
- G06F40/109—Font handling; Temporal or kinetic typography
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F40/00—Handling natural language data
- G06F40/10—Text processing
- G06F40/12—Use of codes for handling textual entities
- G06F40/126—Character encoding
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
- G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/60—Digital content management, e.g. content distribution
- H04L2209/605—Copy protection
Definitions
- the present invention relates to a document processing system, an electronic document, a document processing method, and a program, and more particularly to improvements in security technology and compression technology using document data and font data.
- UTF-8 that can use ISO / IEC 10646 (UCS) and Unicode may be used in document processing systems and electronic documents.
- UTF-8 is a character encoding format in 1-byte code units, and in order to be compatible with ASCII characters, the same part as ASCII is encoded with 1 byte, and the other parts are encoded with 2 to 6 bytes. If the document is mainly ASCII characters, you can enjoy the benefits of Unicode with almost no increase in data size.
- the alphabet “a” is 0 and 1, and “01100001” (1 byte: 1 control bit number + 7 sign bit number) can be expressed, but “day” is “111001101001011110100101”. (3 bytes: 8 control bits + 16 code bits).
- the maximum data width in the UTF-8 mechanism is ⁇ 1111110110111111101111111011111110111 '' (6 bytes: 17 control bits + 31 code bits). At this time, more than 2 billion characters can be handled.
- the character form can be switched by using the variant selector defined in Unicode.
- the variant character sector is specified by 256 character code positions of “U + FE00 to U + FE0F” and “U + E0100 to U + E01EF” in Unicode, and 3 to 4 bytes are used in UTF-8.
- the variant character selector can represent a character shape different from the base character shape by arranging the variant character selectors after the base character.
- UTF-8 there are various types of character encoding methods such as UTF-16, UTF-32, Shift-JIS, EUC that support Unicode, and the number of bytes varies depending on the character code position. The method to do is taken. There is also a method for representing various characters using only ASCII characters, such as URL encoding.
- security on computers uses character codes based on standards, uses encryption technology for the data, and takes measures to prevent the contents from leaking outside.
- the encryption technology is premised on decryption on a computer, and if the decryption method of the encryption is found, all the contents of the communication data are decrypted.
- Patent Document 1 a dedicated font is created by randomly changing the correspondence table between character codes and glyphs inside the font, and the character code of the electronic document is replaced with the code format of the dedicated font, and this font is installed.
- a document processing system that realizes concealment of only a character portion by converting an electronic document into a garbled character on a computer without a computer.
- PDF has a feature that character data can be embedded in data. If a PDF file is generated and font information is embedded, the generated document itself can hold the font information. As a result, even a font that is not in the terminal on the output side can be reliably output, and a document with excellent reproducibility can be realized.
- Font embedding includes a subset in which only used fonts are embedded and a full embed (full embedding) in which all characters included in the font are embedded.
- Patent Document 2 describes an information processing apparatus that makes an inquiry as to whether or not to embed font information based on the creation of an electronic document that reflects an instruction to edit graphics and characters.
- Patent Document 2 The information processing apparatus described in Patent Document 2 must be preloaded with font data. A large number of such font data must be prepared according to the type of document. Furthermore, a mechanism for updating such font data must be constructed.
- An object of the present invention is to provide a document processing system, an electronic document, a document processing method, and a program capable of preventing digital copy in a character code while reducing the amount of data.
- a document processing system is a document processing system that creates and processes an electronic document in which font data can be embedded, and records font data in the order of appearance of characters in a sentence, and the characters recorded with the font data.
- a character code changing means for changing the character code to a converted character code consisting of the order number of the font data
- a conversion table creating means for creating a conversion table indicating the correspondence between the character code and the converted character code
- Output means for outputting characters in a font based on the font data.
- the electronic document according to the present invention is created and processed by the document processing system.
- a document processing system is a document processing system that creates and processes an electronic document in which font data can be embedded, and records font data in the order of characters input by the input unit and characters input by the input unit. And a character code changing means for changing the character code of the character in which the font data is recorded into a converted character code consisting of the number of the order of the font data, and a conversion indicating the correspondence between the character code and the converted character code.
- a conversion table creating means for creating a table and an output means for outputting characters in a font based on the font data are provided.
- a document processing method is a document processing method for creating and processing an electronic document in which font data can be embedded, wherein the font data is recorded in the order of appearance of characters in a sentence, and the characters recorded with the font data are recorded.
- the character code of the font data is converted into a conversion character code consisting of the order number of the font data, a conversion table showing the correspondence between the character code and the conversion character code, and a font based on the font data And a step of outputting characters.
- the present invention is a program for causing a computer to function as the document processing system.
- FIG. 1 is a diagram illustrating a configuration of a document processing system according to the first embodiment.
- FIG. 2 is a flowchart for explaining the operation of the document processing system according to the first embodiment.
- FIG. 3 is a diagram for explaining the structure of an electronic document processed by the document processing system according to the first embodiment.
- FIG. 4 is a diagram for explaining the document data of the document processing system according to the first embodiment in comparison with a conventional example.
- FIG. 5 is a flowchart showing an operation for restoring a document in the document processing system according to the first embodiment.
- FIG. 6 is a flowchart for explaining the operation of the document processing system according to the second embodiment.
- FIG. 1 is a diagram showing a configuration of a document processing system according to Embodiment 1 of the present invention.
- FIG. 1 is a block diagram when the document processing system is configured by a PC (Personal Computer).
- the document processing system 10 includes a CPU 11, a ROM 12, a RAM 13, an HDD 14, an input device 15, a display control unit 16, a display 17, a storage medium mounting unit 18, and a communication device 19 connected to each other via a bus. Is provided.
- the CPU 11 controls the entire apparatus and executes the document processing program in the RAM 13 to function as a document processing system.
- the CPU 11 records the font data in the order of appearance of the characters in the sentence, and changes the character code of the characters recorded with the font data to a converted character code consisting of the order number of the font data; It has a function as a part of the conversion table creation means 11b for creating a conversion table showing the correspondence between the normal character code and the conversion character code, and the output means 11c for outputting characters in a font based on font data.
- BIOS Basic Input / Output System
- device drivers such as a mouse and a keyboard.
- An OS Operating System
- BIOS Basic Input / Output System
- An OS can be started by calling a boot loader from the BIOS.
- the RAM 13 includes a volatile memory such as a DRAM, stores a control program to be processed by the CPU 11, and provides a work area when the CPU 11 executes various controls.
- the HDD 14 stores a document processing program, an OS, a conversion table described later, and the like.
- an SSD Solid State Drive
- the input device 15 is a pointing device such as a keyboard and a mouse, and accepts an input operation from a user.
- a touch panel or a voice input device can be used as the input device.
- the display control unit 16 controls drawing on the display 17 with a predetermined resolution, number of colors, and the like based on screen information instructed by various application programs.
- the display 17 is an FPD (Flat Panel Display) such as liquid crystal or organic EL. Further, the display control unit 16 and the display 17 have a function as a part of the output unit 11c that outputs characters in a font based on font data.
- the storage medium mounting unit 18 is configured to be detachable from a non-volatile memory such as a USB memory and a flash memory, and an optical disk medium such as a DVD-ROM, and is used when reading data from and writing data to these storage media.
- the communication device 19 is an interface for connecting to a network such as a LAN or the Internet.
- the electronic document created and processed by the document processing system 10 can be distributed by the communication device 19 via an arbitrary network.
- the CPU 11 executes the boot program in the ROM 12 and loads the OS from the HDD 14 to the RAM 13.
- the PC functions as the document processing system 10 by loading the document processing program in the present embodiment from the HDD 14 to the RAM 13 and executing it.
- FIG. 2 is a flowchart for explaining the operation of the document processing system according to the first embodiment of the present invention. This flow is executed by the document processing program of the CPU 11.
- step S ⁇ b> 1 the CPU 11 reads text data from a storage medium attached to the HDD 14 or the storage medium attachment unit 18. Alternatively, characters may be input using the input device 15.
- step S2 the character code changing unit 11a records the font data in the order of appearance of the characters in the sentence.
- step S3 the character code changing unit 11a changes the character code of the character in which the font data is recorded to a converted character code indicating the order number of the font data.
- step S4 the conversion table creating unit 11b creates a conversion table indicating the correspondence between the character code and the converted character code.
- step S ⁇ b> 5 the CPU 11 waits for confirmation of sentence reading.
- step S6 the output unit 11c displays characters in the corresponding font and ends this flow.
- Example sentences “At that time, Keiichi had just returned from school.” (22 characters)
- the document processing system 10 performs the following document processing.
- font data is recorded in the order of appearance of characters in a sentence.
- the character code of the character in which the font data is recorded is changed to the font data rank number. That is, So ⁇ No.1 ⁇ No.2 And ⁇ No.3 ⁇ No.4 ⁇ No.5 ⁇ ⁇ No.6 1 ⁇ No.7 Change the character code like this.
- Patent Document 1 describes a technique for changing the correspondence between a character code and a font.
- paragraph [0100] of Patent Document 2 describes a technique that employs a subset font for embedding font information. Even in this embodiment, the same effect as the devices described in Patent Documents 1 and 2 can be obtained.
- a conversion table for making character codes random must be created in advance.
- the conversion table has a unique effect different from Patent Documents 1 and 2, in that it is automatically created as unique to each sentence.
- the font data in the document processing system 10 need only be for characters appearing in the sentence, and it is not necessary to mount fonts for all characters. For this reason, as in the apparatus described in Patent Document 2, there is an effect that the storage capacity of the font data can be reduced.
- the document processing system 10 can return the conversion character code to the standard character code by using the conversion table.
- FIG. 3 is a diagram for explaining the structure of an electronic document processed by the document processing system according to the first embodiment of the present invention.
- the electronic document 20 shown in FIG. 3 is stored in various storage media, for example, and distributed together with the storage media.
- the electronic document is distributed on a network, for example, by communication means.
- the electronic document 20 has a control code 21 that is a subset font identification number at the beginning, and a sentence 22 that includes a converted character code. If the subset font is obtained by the control code 21, the correct sentence of the sentence by the converted character code is displayed.
- FIG. 4 is a diagram for explaining the document data of the document processing system according to the first embodiment of the present invention in comparison with a conventional example.
- 4A shows the structure of document data on a conventional computer
- FIG. 4B shows data on a conventional computer
- FIG. 4C shows a display result with conventional normal font data.
- 4D is an example of character representation of the document processing system 10
- FIG. 4E is data of the document processing system 10
- FIG. 4F is normal font data of the document processing system 10
- FIG. g) shows the display results in the normal font data of the document processing system 10, respectively.
- the book (UTF-8) is represented by E6 9C AC (hexadecimal number), 11100110 10011100 10101100 (binary number). Therefore, the data width on the computer is as shown in FIG.
- the display result with normal font data is shown in FIG.
- the storage capacity of the font data is large.
- the present embodiment is characterized in that the font data is recorded in the order of appearance of the characters in the sentence, and at the same time, the character code of the character in which the font data is recorded is changed to the font data rank number.
- the document data structure, the amount of data on the computer, and the display result of the font data are different. 4 (a), 4 (b), and 4 (c) correspond to FIGS. 4 (d), (e), (f), and (g) of this embodiment in this order.
- the conversion of the characters used in the text to the optimal character code is performed by recording the font data in the order of appearance of the characters in the text and at the same time converting the character code of the characters recorded in the font data to the font data. It is implemented by changing the ranking number (conversion character code).
- conversion character code By replacing font data with converted character codes in the order of appearance of characters in the text, a conversion table is automatically created as unique to each text. Moreover, since the font data has conversion table information, the correct text is displayed.
- the conversion to the optimum character code is performed in the order of appearance of the characters in the text.
- the present invention is not limited to this, and other forms may be adopted.
- the conversion table is unnecessary by converting the characters in the sentence in the order of appearance as in the present embodiment.
- the display result of the normal font data of the document processing system 10 is as shown in FIG. 4F, and the contents of the text cannot be understood. Therefore, even if the encrypted document data is decrypted, the contents of the text cannot be understood. As shown in FIG. 4G, the contents of the text cannot be understood unless there is a display result using the font data created according to the present embodiment. For this reason, even if there is an illegal copy of text or picking during communication, no information is leaked.
- diversion and theft can be prevented by preventing digital copying with standard character codes even for products or services that must protect text information such as electronic books.
- the present embodiment has an advantage in that the font data used in the text only needs to be prepared, and the storage capacity of the font data can be small.
- FIG. 5 is a flowchart showing an operation for restoring a document in the document processing system according to the first embodiment of the present invention.
- the CPU 11 includes a restoring unit that returns the converted character code to the standard character code using the conversion table. Note that this restoration means may be provided in another PC or the like.
- step S11 the CPU 11 reads document data.
- step S12 the restoring unit refers to the conversion table and returns the converted character code of the read document data to the standard character code.
- step S13 the output unit 11c outputs the character of the font data returned to the standard character code, and ends this flow.
- the document processing system 10 can return the conversion character code to the standard character code by using the conversion table.
- FIG. 6 is a flowchart for explaining the operation of the document processing system according to the second embodiment of the present invention. This flow is executed by the document processing program of the CPU 11.
- step S21 characters and the like are input using the input device 15 such as a keyboard.
- step S22 the CPU 11 performs dictionary conversion in the input method.
- dictionary conversion in the input method is Kana-Kanji conversion.
- step S23 input determination is awaited. Determination of input includes pressing a determination key or a line feed key.
- step S24 the character code changing unit 11a records font data in the order of characters input by the input device 15.
- step S25 the character code changing unit 11a changes the character code of the character in which the font data is recorded to the converted character code indicating the order number of the font data.
- step S26 the conversion table creating unit 11b creates a conversion table indicating the correspondence between the character code and the converted character code.
- step S27 the CPU 11 waits for confirmation of the input character.
- step S28 the output unit 11c displays characters in the corresponding font and ends this flow.
- the document processing system records font data in the order of input characters.
- the character code of the character in which the font data is recorded is changed to the font data rank number. That is, So ⁇ No.1 ⁇ No.2 And ⁇ No.3 ⁇ No.4 ⁇ No.5 ⁇ ⁇ No.6 1 ⁇ No.7 Change the character code like this.
- the document processing system records the font data in the order of the characters input by the input device 15, and converts the character code of the characters recorded with the font data into the font.
- Character code changing means 11a for changing to a conversion character code consisting of a data rank number
- conversion table creation means 11b for creating a conversion table indicating the correspondence between the character code and the conversion character code
- a character using a font based on font data Output means 11c for outputting.
- the character code is different from the standard one and is random, making it difficult to copy the text.
- the conversion table is automatically created as unique to each sentence.
- the character code only needs to distinguish characters that appear in the sentence, and it is not necessary to distinguish all characters, so the number of bits of the character code can be reduced.
- the font data need only be for characters appearing in the sentence, and it is not necessary to mount fonts for all characters, so the storage capacity of the font data can be reduced.
- the subset font data has the information of the conversion table
- the correct text is displayed by the conversion character code and the subset font data on the user terminal without the conversion table.
- the conversion character code can be returned to the standard character code.
- font data can be attached to text, distributed separately from text, or used for billing.
- characters other than standard characters can be used as easily as standard characters.
- font data with different designs can be recorded separately in different areas, or can be recorded continuously in the same area.
- the names of the document processing system, the electronic document, and the document processing method are used.
- the name of the apparatus is the name of the information processing apparatus, the document processing apparatus, or the method. May be an information processing method or the like.
- each unit constituting the document processing system for example, the external storage device, the type of communication device, the number thereof, the connection method, and the like may be any.
- the present invention can be applied not only to Japanese but also to any language.
- the character encoding method can be applied not only to UTF-8 but also to various types such as UTF-16, UTF-32, Shift-JIS, EUC corresponding to Unicode.
- the document processing system of the present invention is also realized by a program for causing a computer to function as the document processing system.
- This program may be stored in a computer-readable recording medium.
- the recording medium on which this program is recorded may be the ROM 12 itself shown in FIG. 1 or a DVD-ROM that can be read by inserting the recording medium into the storage medium mounting unit 18. .
- the recording medium may be a magnetic tape, a cassette tape, a flexible disk, a hard disk, a CD / MO / MD, or a semiconductor memory.
- the document processing method described above can also be realized by a program for causing this document processing method to function.
- This program is stored in a computer-readable recording medium.
- the document processing system, the electronic document, and the document processing method according to the present invention are preferably used for a document processing system and an electronic document in which security technology and compression technology using document data and font data are improved.
Abstract
Description
「111001101001011110100101」
(3バイト:制御ビット数8+符号ビット数16)となる。
UTF-8の仕組みでの最大のデータ幅は
「111111011011111110111111101111111011111110111111」
(6バイト:制御ビット数17+符号ビット数31)となる。このとき20億超の文字を扱うことができる。
またUnicodeで定義されている異体字セレクタを用いることで、字形を切り替えることができる。異体字レセクタはUnicodeにおいて「U+FE00~U+FE0F」および「U+E0100~U+E01EF」の256文字符号位置で指定されており、UTF-8では3バイト~4バイトを用いる。異体字セレクタは基の文字に続けて異体字セレクタを並べることで基の字形と異なる字形を表すことができる。
特許文献1記載の文書処理システムは、文字コードとフォントとの対応関係を変えるための変換テーブルを予め作成しなければならない。このような変換テーブルは、文書の種類又は使用者の使用環境に依って大きく異なることが予想される。それらすべてを満たすような変換テーブルを予め作成しておくのは、手間とコストがかかる課題がある。また、変換の実効を上げるためにはデータ量の大きい変換テーブルを作成しておかなければならない。さらに、係る変換テーブルを更新するための仕組みも構築しなければならない。
(実施の形態1)
図1は、本発明の実施の形態1に係る文書処理システムの構成を示す図である。図1は、文書処理システムを、PC(Personal Computer)で構成した場合のブロック図である。
HDD14は、文書処理プログラム、OS、後述する変換テーブル等を記憶する。HDD14に代えてSSD(Solid State Drive)を搭載してもよい。
表示制御部16は、種々のアプリケーションプログラムが指示する画面情報に基づき所定の解像度や色数等でディスプレイ17の描画を制御する。ディスプレイ17は、液晶又は有機ELなどのFPD(Flat Panel Display)である。また、表示制御部16及びディスプレイ17は、フォントデータによるフォントで文字を出力する出力手段11cの一部としての機能を有する。
通信装置19は、LANやインターネットなどのネットワークに接続するためのインタフェースである。文書処理システム10により作成処理された電子文書を、通信装置19により任意のネットワークを介して頒布することができる。
図2は、本発明の実施の形態1に係る文書処理システムの動作を説明するフローチャートである。本フローは、CPU11の文書処理プログラムにより実行される。
次いで、ステップS2で、文字コード変更手段11aは、文章の中の文字の出現順にフォントデータを記録する。
次いで、ステップS4で、変換テーブル作成手段11bは、文字コードと変換文字コードとの対応を示す変換テーブルを作成する。
次いで、ステップS6で、出力手段11cは、該当フォントで文字を表示して本フローを終了する。
文章例:
「そのとき、吾一は学校から帰ったばかりだった。」(22文字)
文書処理システム10は、上記文章が読み込まれた場合、以下の文書処理を行う。
そ→No.1
の→No.2
と→No.3
き→No.4
、→No.5
吾→No.6
一→No.7
のように文字コードを変更する。
これにより、(1)文書処理システム10における文字コードは、標準のものと異なり、ランダム性のあるものとなって、テキストのコピーが簡単にはできなくなる。すなわち、標準の文字コードは、フォントデータの順位の番号(変換文字コード)に変更されているので、テキストのコピーは簡単にはできなくなる。特許文献1の段落〔0081〕には、文字コードとフォントとの対応関係を変える技術が記載されている。また、特許文献2の段落〔0100〕には、フォント情報の埋め込みについてサブセットフォントを採用した技術が記載されている。本実施の形態にあっても、特許文献1,2記載の装置と同じ効果を得ることができる。但し、特許文献1では、文字コードをランダムにするための変換テーブルを予め作成しなければならない。これに対して、本実施の形態では、変換テーブルは各文章に特有のものとして自動的に作成されるという、特許文献1,2と異なる特有の効果を有する。
図3は、本発明の実施の形態1に係る文書処理システムにより文書処理された電子文書の構造を説明する図である。図3に示す電子文書20は、例えば各種記憶媒体に記憶され、記憶媒体とともに頒布される。また、電子文書は、通信手段によって例えばネットワーク上に頒布される。
図3に示すように、電子文書20は、先頭にサブセットフォントの識別番号である制御コード21があり、続いて変換文字コードによる文章22がある形式である。制御コード21によってサブセットフォントを取り寄せれば変換文字コードによる文章の正文が表示される。
文章例:
「本日は晴天なり」(7文字)
従来例では、図4(a)に示すように、例えば本(UTF-8)は、E6 9C AC(16進数)、11100110 10011100 10101100(2進数)で表わされる。したがって、コンピュータ上のデータ幅は、図4(b)となる。また、通常のフォントデータでの表示結果は、図4(c)となる。但し、従来例では、利用が想定されるあらゆるフォントデータを用意しているので、フォントデータの記憶容量は大きい。
「01100001011000100110001101100100011001010110011001100111」
(7×8=56ビット)となり、従来例の図4(b)
「1110011010011100101011001110011010…10101010111000111000001010001010」
(7×8×3=168ビット)と比べて明らかなように、コンピュータ上のデータを大幅に削減することができる。
図5は、本発明の実施の形態1に係る文書処理システムの文書を元に戻す動作を示すフローチャートである。CPU11は、変換テーブルを用いて、変換文字コードを標準の文字コードに戻す復元手段を備える。なお、この復元手段は、他のPC等が備える構成でもよい。
次いで、ステップS12で、復元手段は、変換テーブルを参照して、読み込んだ文書データの変換文字コードを標準の文字コードに戻す。
このように、文書処理システム10は、変換テーブルを使用することで、変換文字コードを標準の文字コードに戻すことができる。
本発明の実施の形態2に係る文書処理システムの全体構成は、図1と同様であるため説明を省略する。
図6は、本発明の実施の形態2に係る文書処理システムの動作を説明するフローチャートである。本フローは、CPU11の文書処理プログラムにより実行される。
次いで、ステップS22で、CPU11は、入力メソッドにおける辞書変換を行う。例えば、入力メソッドにおける辞書変換は、かな漢字変換である。
次いで、ステップS24で、文字コード変更手段11aは、入力装置15により入力される文字の順にフォントデータを記録する。
次いで、ステップS26で、変換テーブル作成手段11bは、文字コードと変換文字コードとの対応を示す変換テーブルを作成する。
次いで、ステップS28で、出力手段11cは、該当フォントで文字を表示して本フローを終了する。
文章例:
「そのとき、吾一は学校から帰ったばかりだった。」(22文字)
文書処理システムは、入力の文字の順にフォントデータを記録する。同時に、フォントデータを記録した文字の文字コードをフォントデータの順位の番号に変更する。すなわち、
そ→No.1
の→No.2
と→No.3
き→No.4
、→No.5
吾→No.6
一→No.7
のように文字コードを変更する。
これにより、文字コードは、標準のものと異なり、ランダム性のあるものとなって、テキストのコピーが簡単にはできなくなる。ここで、変換テーブルは各文章に特有のものとして自動的に作成される。
また、文字符号化方式はUTF-8だけでなく、Unicodeに対応したUTF-16やUTF-32、Shift-JIS、EUCなど様々な種類のものに適用することができる。
このプログラムを記録した記録媒体は、図1に示されるROM12そのものであってもよいし、また、記憶媒体装着部18に記録媒体を挿入することで読み取り可能なDVD-ROM等であってもよい。
11 CPU
11a 文字コード変更手段
11b 変換テーブル作成手段
11c 出力手段
12 ROM
13 RAM
14 HDD
15 入力装置
16 表示制御部
17 ディスプレイ
18 記憶媒体装着部
19 通信装置
20 電子文書
Claims (9)
- フォントデータを埋め込み可能な電子文書を作成処理する文書処理システムであって、
文章の中の文字の出現順にフォントデータを記録するとともに、前記フォントデータを記録した文字の文字コードを、該フォントデータの順位の番号からなる変換文字コードに変更する文字コード変更手段と、
前記文字コードと前記変換文字コードとの対応を示す変換テーブルを作成する変換テーブル作成手段と、
前記フォントデータによるフォントで文字を出力する出力手段と
を備えることを特徴とする文書処理システム。 - 前記変換テーブルを用いて、前記変換文字コードを標準の文字コードに戻す復元手段を備えることを特徴とする請求項1記載の文書処理システム。
- フォントデータを埋め込み可能な電子文書を作成処理する文書処理システムであって、
文字を入力する入力手段と、
前記入力手段により入力される文字の順にフォントデータを記録するとともに、前記フォントデータを記録した文字の文字コードを、該フォントデータの順位の番号からなる変換文字コードに変更する文字コード変更手段と、
前記文字コードと前記変換文字コードとの対応を示す変換テーブルを作成する変換テーブル作成手段と、
前記フォントデータによるフォントで文字を出力する出力手段と
を備えることを特徴とする文書処理システム。 - 前記出力手段は、前記フォントデータにより文字を表示することを特徴とする請求項1乃至3いずれかに記載の文書処理システム。
- 請求項1乃至4いずれかに記載の文書処理システムにより作成処理された電子文書。
- 先頭にサブセットフォントの識別番号である制御コードがあり、続いて前記変換文字コードによる文章がある形式であることを特徴とする請求項5記載の電子文書。
- フォントデータを埋め込み可能な電子文書を作成処理する文書処理方法であって、
文章の中の文字の出現順にフォントデータを記録するとともに、前記フォントデータを記録した文字の文字コードを、該フォントデータの順位の番号からなる変換文字コードに変更するステップと、
前記文字コードと前記変換文字コードとの対応を示す変換テーブルを作成するステップと、
前記フォントデータによるフォントで文字を出力するステップと
を備えることを特徴とする文書処理方法。 - コンピュータを、請求項1記載の文書処理システムとして機能させるためのプログラム。
- コンピュータを、請求項1記載の文書処理システムとして機能させるためのプログラムを記録したことを特徴とするコンピュータ読み取り可能な記録媒体。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2012/066818 WO2014002281A1 (ja) | 2012-06-29 | 2012-06-29 | 文書処理システム、電子文書、文書処理方法及びプログラム |
JP2012534890A JP5467155B1 (ja) | 2012-06-29 | 2012-06-29 | 文書処理システム、文書処理方法及びプログラム |
EP12879803.0A EP2869210A4 (en) | 2012-06-29 | 2012-06-29 | ELECTRONIC DOCUMENT AND SYSTEM, METHOD AND PROGRAM FOR PROCESSING DOCUMENT |
CN201280074372.8A CN104412255A (zh) | 2012-06-29 | 2012-06-29 | 文本处理系统、电子文本、文本处理方法以及程序 |
KR1020157002378A KR20150044430A (ko) | 2012-06-29 | 2012-06-29 | 문서 처리 시스템, 문서 처리 방법 및 저장 매체 |
US14/584,740 US20150113391A1 (en) | 2012-06-29 | 2014-12-29 | Document processing system, document processing method and storage medium |
HK15103450.0A HK1202948A1 (en) | 2012-06-29 | 2015-04-08 | Ducoment processing system, electronic document, document processing method, and program |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2012/066818 WO2014002281A1 (ja) | 2012-06-29 | 2012-06-29 | 文書処理システム、電子文書、文書処理方法及びプログラム |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/584,740 Continuation US20150113391A1 (en) | 2012-06-29 | 2014-12-29 | Document processing system, document processing method and storage medium |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014002281A1 true WO2014002281A1 (ja) | 2014-01-03 |
Family
ID=49782504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/066818 WO2014002281A1 (ja) | 2012-06-29 | 2012-06-29 | 文書処理システム、電子文書、文書処理方法及びプログラム |
Country Status (7)
Country | Link |
---|---|
US (1) | US20150113391A1 (ja) |
EP (1) | EP2869210A4 (ja) |
JP (1) | JP5467155B1 (ja) |
KR (1) | KR20150044430A (ja) |
CN (1) | CN104412255A (ja) |
HK (1) | HK1202948A1 (ja) |
WO (1) | WO2014002281A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106663020A (zh) * | 2014-08-29 | 2017-05-10 | 日立公共系统有限公司 | 迁移支持装置 |
CN116861041A (zh) * | 2023-09-04 | 2023-10-10 | 世窗信息股份有限公司 | 一种电子公文处理方法及系统 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10277585B2 (en) | 2015-07-21 | 2019-04-30 | A.T Commumcations Co., Ltd. | Server device, information management system, information management method, and computer program |
KR102401229B1 (ko) * | 2020-04-29 | 2022-05-25 | (주)폰트릭스 | 텍스트를 암호화 하는 방법 및 이를 구현하는 장치 |
CN113595683A (zh) * | 2021-07-07 | 2021-11-02 | 西安震有信通科技有限公司 | 基于各类编码文件的转换处理方法、装置、终端及介质 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0619903A (ja) * | 1992-06-29 | 1994-01-28 | Canon Inc | 文字処理装置 |
JP2004013680A (ja) * | 2002-06-10 | 2004-01-15 | Nec Corp | 文字コード圧縮・復元装置および同方法 |
JP2006107033A (ja) | 2004-10-04 | 2006-04-20 | Canon Inc | フォント情報の埋め込み機能を備える情報処理装置及び情報処理方法及びプログラム並びに記憶媒体 |
JP2007109158A (ja) | 2005-10-17 | 2007-04-26 | Canon Inc | 文書処理システムおよび文書処理方法およびコンピュータが読取り可能な記憶媒体およびプログラム |
JP2009271780A (ja) * | 2008-05-08 | 2009-11-19 | Canon Inc | 電子文書変換装置および電子文書変換方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5365018A (en) | 1976-11-24 | 1978-06-10 | Hitachi Ltd | Character display unit |
JPH09153044A (ja) * | 1995-09-27 | 1997-06-10 | Nec Corp | 文字処理装置およびカナ英字変換装置 |
US6314469B1 (en) * | 1999-02-26 | 2001-11-06 | I-Dns.Net International Pte Ltd | Multi-language domain name service |
JP2006215654A (ja) * | 2005-02-01 | 2006-08-17 | Iena Shoji Kk | 文字情報表示システム及び文字情報表示方法 |
US7925091B2 (en) * | 2007-03-30 | 2011-04-12 | Microsoft Corporation | Displaying text of a writing system using syntax-directed translation |
JP5371289B2 (ja) * | 2008-06-02 | 2013-12-18 | キヤノン株式会社 | 情報処理装置、データ処理方法、プログラム |
US7663511B2 (en) * | 2008-06-18 | 2010-02-16 | Microsoft Corporation | Dynamic character encoding |
-
2012
- 2012-06-29 KR KR1020157002378A patent/KR20150044430A/ko not_active Application Discontinuation
- 2012-06-29 WO PCT/JP2012/066818 patent/WO2014002281A1/ja active Application Filing
- 2012-06-29 CN CN201280074372.8A patent/CN104412255A/zh active Pending
- 2012-06-29 JP JP2012534890A patent/JP5467155B1/ja active Active
- 2012-06-29 EP EP12879803.0A patent/EP2869210A4/en not_active Withdrawn
-
2014
- 2014-12-29 US US14/584,740 patent/US20150113391A1/en not_active Abandoned
-
2015
- 2015-04-08 HK HK15103450.0A patent/HK1202948A1/xx unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0619903A (ja) * | 1992-06-29 | 1994-01-28 | Canon Inc | 文字処理装置 |
JP2004013680A (ja) * | 2002-06-10 | 2004-01-15 | Nec Corp | 文字コード圧縮・復元装置および同方法 |
JP2006107033A (ja) | 2004-10-04 | 2006-04-20 | Canon Inc | フォント情報の埋め込み機能を備える情報処理装置及び情報処理方法及びプログラム並びに記憶媒体 |
JP2007109158A (ja) | 2005-10-17 | 2007-04-26 | Canon Inc | 文書処理システムおよび文書処理方法およびコンピュータが読取り可能な記憶媒体およびプログラム |
JP2009271780A (ja) * | 2008-05-08 | 2009-11-19 | Canon Inc | 電子文書変換装置および電子文書変換方法 |
Non-Patent Citations (3)
Title |
---|
HIROSHI YAMAKI, OFFICE DE ACROBAT O MUKAEUTSU DYNADOC, vol. 3, 10 December 1998 (1998-12-10), pages 88 - 91, XP008176087 * |
KATSUYA IMURA: "Part 3 PDF to Chohyo no Kankei o Rikai suru", SYSTEM KAIHATSU JOURNAL, vol. 5, 29 July 2008 (2008-07-29), pages 93 - 94, XP008176085 * |
See also references of EP2869210A4 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106663020A (zh) * | 2014-08-29 | 2017-05-10 | 日立公共系统有限公司 | 迁移支持装置 |
CN106663020B (zh) * | 2014-08-29 | 2020-05-01 | 日立社会信息服务有限公司 | 迁移支持装置 |
CN116861041A (zh) * | 2023-09-04 | 2023-10-10 | 世窗信息股份有限公司 | 一种电子公文处理方法及系统 |
CN116861041B (zh) * | 2023-09-04 | 2023-11-07 | 世窗信息股份有限公司 | 一种电子公文处理方法及系统 |
Also Published As
Publication number | Publication date |
---|---|
CN104412255A (zh) | 2015-03-11 |
KR20150044430A (ko) | 2015-04-24 |
US20150113391A1 (en) | 2015-04-23 |
HK1202948A1 (en) | 2015-10-09 |
JPWO2014002281A1 (ja) | 2016-05-30 |
EP2869210A4 (en) | 2016-05-18 |
EP2869210A1 (en) | 2015-05-06 |
JP5467155B1 (ja) | 2014-04-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5467155B1 (ja) | 文書処理システム、文書処理方法及びプログラム | |
US8429397B2 (en) | Generating an encryption font by converting character codes and recording the encryption font in a unique tag | |
CN100581214C (zh) | 图像处理装置和图像处理方法 | |
US7958133B2 (en) | Application conversion of source data | |
CN108363911B (zh) | 一种Python脚本混淆、水印的方法及装置 | |
KR20080105721A (ko) | 문서 보안 방법 | |
CN102393892B (zh) | 一种word文档版权保护的方法 | |
JP2014160353A (ja) | 難読化データをサーバに保持させる装置及び方法 | |
Whitington | PDF explained | |
US20150169508A1 (en) | Obfuscating page-description language output to thwart conversion to an editable format | |
US7987494B1 (en) | Method and apparatus providing end to end protection for a document | |
JP2011081030A (ja) | 検索型カラー暗号化ファイルの構成方法および検索型カラー暗号化ファイルシステム | |
KR100943318B1 (ko) | 클립보드 보안방법 | |
JP2002189715A (ja) | 暗号番号埋め込みシステム | |
US9916464B2 (en) | Replacement text for textual content to be printed | |
JP2008299521A (ja) | ファイル保護システム、ファイル保護方法及びコンピュータプログラム | |
JP2006261718A (ja) | 文書処理装置及び方法 | |
KR102401229B1 (ko) | 텍스트를 암호화 하는 방법 및 이를 구현하는 장치 | |
KR102119726B1 (ko) | 스프레드시트 전자 문서의 개체 보호 장치 및 이의 동작 방법 | |
JP6703116B2 (ja) | Epubファイル暗号化のための単位ファイルに対する圧縮及び復元方法 | |
KR20140075853A (ko) | 전자서적 서비스 제공 장치 및 방법 | |
CN103970799A (zh) | 一种电子文档的生成方法、装置和客户端 | |
US9646015B1 (en) | Digital work compression | |
Tiwari et al. | A novel steganographic methodology for high capacity data hiding in executable files | |
US20220156449A1 (en) | System and method for providing steganographic text encoding |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2012534890 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12879803 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20157002378 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012879803 Country of ref document: EP |