JP2011209356A - Display device and character display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a "display device and character display method" capable of easily displaying a character of a language where one character is constituted by a plurality of character codes even when there is no special software.SOLUTION: The display device includes a displaying means, a storing means for storing a character font table where character font corresponding to one or more character codes constituting a character is defined, and a controlling means for acquiring a partial character constituting the character. The controlling means acquires an element character constituting the partial character, extracts the character font corresponding to the partial character where element characters are combined from the character font table stored in the storing means, and outputs it to the screen of the displaying means. The partial character has one main element character and as many sub-element characters as one number of zero to three. When regions of level 1 to level 4 are assigned to the longitudinal direction of the partial character, the main element character is arranged in the region of the level 2, and the sub-element characters are arranged in the region of at least one of the level 1, level 3 and level 4.

Description

  The present invention relates to a display device and a character display method for easily displaying characters composed of a plurality of character codes.

  In recent years, audio apparatuses can display not only the reproduction of music but also information such as the name of an artist related to the music being reproduced on the screen. Such music and information related to music can be easily acquired via the Internet or the like, and it is also possible to acquire music from around the world.

  Information on the music being played is displayed using characters from the country in which the music was released. Such national characters are handled as character codes coded according to a certain rule within the device, and when displaying one character, refer to a character table associated with the character code in a one-to-one relationship. The character code is converted to characters.

  However, some languages combine characters with a plurality of character codes to form one character. In order to display such characters, for example, Patent Document 1 discloses a plurality of types of data based on the arrangement information of the first part shape data, the second part shape data, and the second part shape data. A technique for representing characters is described.

JP 2009-103736 A

  As described above, it is possible to display a Thai-like character that constitutes one character by combining a plurality of character codes. Specifically, since one character is composed of a plurality of character codes, one character font is displayed by superimposing fonts corresponding to the plurality of character codes.

  However, in order to display a character font by such superposition, software for that purpose is required, and it cannot be displayed unless it is a display device in which the software is installed, or accurate notation cannot be performed.

  In particular, in the case of an in-vehicle display device, software for processing for driving safety or the like is preferentially installed, and the above-described software for Thai display may not be installed. Therefore, it may happen that Thai characters cannot be expressed correctly.

  The present invention has been made in view of the problems of the prior art, and can easily display characters in a language in which one character is constituted by a plurality of character codes even when there is no special software. It is another object of the present invention to provide a character display method.

  In order to solve the above-described problems of the prior art, according to an aspect of the present invention, a display unit and a character font table in which character fonts corresponding to one or more character codes constituting a character are defined are stored. Storage means and control means for acquiring a partial character constituting the character, wherein the control means obtains an element character constituting the partial character and applies the partial character that is a combination of the element characters to the partial character. A display device is provided, wherein a corresponding character font is extracted from a character font table stored in the storage means and is output to the screen of the display means.

  In the display device according to this aspect, the partial character has one main element character and any number of sub-element characters from 0 to 3, from level 1 in the vertical direction of the partial character. When a level 4 area is allocated, the main element character may be arranged in the level 2 area, and the sub element character may be arranged in at least one of the level 1, level 3, and level 4 areas. The element character includes identification information indicating in which region from level 1 to level 4 the character is arranged, and the control means inputs in order of level 2, level 1, level 3, and level 4 The corresponding character font may be extracted from the character font table based on the character code of the element character, and the control means may determine the character code of the character arranged in the level 2 area. One or a plurality of character codes from a character input to a character code of a character arranged in the level 2 area to be input next may be used as a character code of one partial character. Is a Thai word, the character code of the main element character constituting the partial character includes a character code corresponding to a consonant, and the character code of the sub-element character includes at least a character code or tone corresponding to a vowel The character code corresponding to may be included.

  Moreover, according to the other form of this invention, the step which acquires the character, the step which acquires the partial character which comprises the said character, the step which acquires the element character which comprises the said partial character, and a character are comprised. Extracting a character font corresponding to the partial character that is a combination of the element characters from a character font table in which a character font corresponding to one or a plurality of character codes is defined; and displaying the extracted character font And a step of outputting to the screen.

  In the character display method according to this aspect, the partial character has one main element character and any number of sub-element characters from 0 to 3, and level 1 in the vertical direction of the partial character. When the level 4 area is assigned, the main element character is arranged in the level 2 area, and the sub element character is arranged in at least one of the level 1, level 3, and level 4 areas. Preferably, the element character includes identification information indicating in which region from level 1 to level 4 a character is arranged, and the step of obtaining the partial character includes level 2, level 1, level 3, and Obtaining the character codes of the element characters input in the order of level 4, and the character codes of the characters arranged in the level 2 area are input next to the level 2 area to be input next Comprising the steps of one or more character codes to character codes to one portion character codes, it may include a.

  In the display device and the character display method according to the present invention, character fonts for characters composed of one or a plurality of character codes are defined and stored in advance as a character font table in the storage means. The display device acquires partial characters constituting the input character, and further acquires elemental characters constituting the partial character. A character font corresponding to a partial character that is a combination of element characters is extracted from the character font table and displayed on the screen. As a result, even in a display device that does not have software that superimposes a plurality of character fonts for a plurality of character codes into a single character font, a plurality of character codes can be combined into a single character such as Thai characters. It becomes possible to correctly display the characters constituting the font.

  In addition, since characters composed of a plurality of character codes are defined in advance, it is possible to prevent erroneous characters from being displayed.

1 is a block diagram schematically showing a configuration of a display device according to an embodiment of the present invention. It is a figure explaining an example of the character code in Thai. It is a figure which shows an example of a character font table. It is a flowchart which shows an example of the display process with respect to a Thai character.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 schematically shows a configuration of a display device 10 according to an embodiment of the present invention. As shown in FIG. 1, the display device 10 according to the present embodiment includes an external device connection unit 11, a control unit 12, a storage unit 13, an operation unit 14, and a display unit 15.

  The external device connection unit 11 is connected to a portable device capable of storing data such as music, and acquires music information data such as music data and a music name attached to the music. Also, content such as music and broadcast is received from a server or broadcast station via a communication network such as the Internet or a broadcast network that performs data transmission based on a communication program such as TCP / IP (Transmission Control Protocol / Internet Protocol). .

  The storage unit 13 uses, for example, an HDD (hard disk) device, a magneto-optical disk device, or a semiconductor memory such as a flash memory or a RAM as the storage medium, and music data acquired through the external device connection unit 11 is stored. The The storage unit 13 stores a character font table in which character fonts for character codes are defined. In particular, a character font table that defines one character font corresponding to a plurality of character codes is stored for characters in a language in which one character is constituted by a plurality of character codes such as Thai. .

  The operation unit 14 is for inputting information instructed by the user. When a touch panel is provided on the display screen of the display unit 15, the touch panel functions as the operation unit 14.

  The display unit 15 includes a display screen constituted by, for example, an LCD (Liquid Crystal Display), and displays information on the music currently being reproduced. Further, as information related to the present embodiment, when the music information is Thai, the corresponding character font is displayed regardless of the superposition of the character fonts corresponding to the character code.

  The control unit 12 is configured by a microcomputer or the like, for example, and controls each of the above units. That is, data such as music acquired from the external device connection unit 11 is stored in the storage unit 13 and a character code of music information such as an artist name is displayed by the character code input unit 16 in order to display information related to music. input. The Thai character determination unit 17 analyzes the input character code to determine whether the character is Thai. If it is determined that the input character is a Thai character, the Thai character analysis unit 18 detects a character code of a partial character serving as one display unit, and the corresponding font extraction unit 19 corresponds to the character code. The character font is extracted from the storage unit 13 and the Thai character font extracted by the font output unit 20 is displayed on the screen of the display unit 15.

  Hereinafter, a character display process performed in the display device 10 according to the present embodiment will be described with reference to FIGS.

  FIG. 2 is a diagram illustrating a configuration using Thai character codes. In Thai, one syllable is composed of a series of phonemes such as “consonant + vowel” or “consonant + vowel + consonant”. Some Thai vowels are written before, above and below, rather than after consonants. Some vowels may be written before, above or after the consonant. Further, a tone symbol may be added to the Thai character. This tone symbol is displayed above the consonant characters. Further, when a vowel is written on a consonant character, a tone symbol is further written on it.

  Such Thai characters are represented by combining character codes from “0E00” to “0E7F” of Unicode.

  FIG. 2A shows an example in which Thai characters are expressed by character codes. FIG. 2A shows three character notations 21, 22, and 23 for explaining the structure of characters. The character notation 21 in FIG. 2A is configured by combining a partial character 21a, a partial character 21b, and a partial character 21c. In addition, the character notation 22 in FIG. 2A is configured by combining a partial character 22a and a partial character 22b. Further, the character notation 23 in FIG. 2A is composed of partial characters 23a. The character notation 23 is a Thai character indicating the numerical value “1”, and one character is represented by one partial character.

  As described above, one character is not always represented by one font, and one character font is composed of one or a plurality of partial character fonts. Each partial character font is composed of a character font of one or a plurality of element characters. The character font of the element character is a character font corresponding to any one of the character codes “0E00” to “0E7F” of Unicode.

  The partial character font is configured by assigning element character fonts to four arrangement areas in the vertical direction. The four arrangement areas are level 1, level 2, level 3, and level 4 from the bottom of the character. In the level 2 area, a character font of any element character (main element character) is always arranged. In the level 3 or level 4 area, a character font of an element character (sub-element character) is arranged according to a character to be displayed.

  In the case of the partial character 21b of the character notation 21 in FIG. 2A, an example is shown in which one partial character is composed of element characters arranged in the level 1, level 2 and level 3 regions. The character code of the element character (hereinafter also referred to simply as “level 1 element character”) arranged in the level 1 area is “0E38”, the character code of the level 2 element character is “0E25”, and the level 3 The character code of the element character is “0E49”. Further, in the case of the partial character 22a of the character notation 22 in FIG. 2A, an example is shown in which one partial character is constituted by level 2, level 3 and level 4 element characters. The character code of the element character of level 2 is “0E08”, the character code of the element character of level 3 is “0E31”, and the character code of the element character of level 4 is “0E49”. The character notation 23 in FIG. 2A is composed of level 2 element characters having a character code of “0E51”.

  Level 2 represents consonants or vowels and numerical values, and level 1 represents vowels. Level 3 represents a vowel or tone symbol, and level 4 represents a tone symbol.

  The character code of each element character is input to the display device in the order of level 2 → level 1 → level 3 → level 4. The element character includes identification information indicating at which level the element character is arranged, and the display device forms a partial character based on the input element character. .

  In this embodiment, fonts for partial characters are defined and stored in advance. That is, all of the level 1, level 3 and level 4 element characters that can be combined with the element characters arranged in the level 2 region are extracted and a character font corresponding to them is created. A character font corresponding to a partial character that is a combination of one or a plurality of element characters is extracted from the character font table and displayed on the display screen.

  FIG. 2B shows a Thai character 24 meaning “Japan”. The character codes of the Thai characters are represented by “0E0D”; “0E35”; “0E48”; “0E1B”; “0E38”; “0E48”; “0E19”. The first partial character 24a is “0E0D”; “0E35”; “0E48”, and the second partial character 24b is “0E1B”; “0E38”; “0E48”, and the third partial character 24c is , “0E19”. In the first partial character 24a, the character code of the element character of level 2 is “0E0D”, the character code of the element character of level 3 is “0E35”, and the character code of the element character of level 4 is “0E48”. In the second partial character 24b, the character code of the level 2 element character is “0E1B”, the character code of the level 1 element character is “0E38”, and the character code of the level 3 element character is “0E48”. ing. In the third partial character 24c, the character code of the level 2 element character is “0E19”.

  FIG. 3 schematically shows an example of a character font table. FIG. 3A shows the character codes of level 1 (LV1) element characters that can be used for the character codes of level 2 (LV2) element characters. FIG. 3B shows character codes of level 3 (LV3) element characters that can be used for the character codes of element characters obtained by combining level 2 (LV2) and level 1 (LV1). Similarly, FIG. 3 (c) shows the level 4 (LV4) element characters that can be taken for the character codes of the level 2 (LV2), level 1 (LV1) and level 3 (LV3) synthesized element characters. Indicates the character code.

  In each character font table of FIG. 3A to FIG. 3C, character codes that can be combined are described in the cells. When the combination is impossible, “x” is written in the cell. For example, in the character font table of FIG. 3A, when the character code of the level 2 (LV2) character is “A1”, there is no level 1 (LV1) character, or the level 1 (LV1) character. This indicates that a character code “B1” exists but a character code “B2” does not become a level 1 (LV1) character.

  In each character font table, a character font combining character codes is formed in advance and defined in each cell for combinations of existing character codes. This character font may be a vector font or a pixel font.

  For the first partial character 24a in FIG. 2B, the character code of the level 2 element character is A1, the character code of the level 3 element character is C1, and the character code of the level 4 element character is D1. .

  Whether the character code of the level 1 element character that can be taken for the character code A1 of the level 2 element character is included in the character font table of FIG. Determine whether or not. In this case, since the character of level 1 is not input, the character code of level 1 is “none”, and the character code of the element character of level 2 + level 1 is A1. Next, according to the character font table of FIG. 3B, the character code of the level 3 element character that can be taken for the character code A1 of the level 2 + level 1 element character is added to the character code of the input level 3 element character. Whether or not is included is determined. In this case, the character code of the element character of level 3 is C1, and is included in the character code of the element character of level 3 in FIG. As a result, the character code of the element character of level 2 + level 1 + level 3 is A1C1. Next, according to the character font table of FIG. 3 (c), the level 4 element character code that can be taken for the level 2 + level 1 + level 3 element character code A1C1 is entered. It is determined whether or not a character code is included. In this case, the character code of the element character of level 4 is D1, and is included in the character code of the element character of level 4 in FIG. As a result, the character code of the partial character 24a is A1C1D1. In the character font table, a character font (character font of the partial character 24a in FIG. 2B) corresponding to the combination of character codes is defined, and the character font is acquired and displayed on the screen of the display unit 15.

  Next, the character display process performed in the control unit 12 of the display device 10 according to the present embodiment will be described with reference to the flowchart of FIG.

  First, in the first step S11, music data and the like are acquired via the external device connection unit 11, and characters to be displayed on the display unit 15 such as music information data such as a music title are input. For example, it is obtained from a TOC (Table Of Contents) in which attribute information of music content (album name, artist name, time of all music included in the album, information of time of each music, etc.) is described. The input character data is temporarily stored in the storage unit 13.

  In the next step S12, a character code is acquired, and it is determined whether or not the language of the input character is Thai. Whether or not it is Thai is determined by whether or not the input character code matches the codes from “0E00” to “0E7F” of Unicode. If it is Thai, the process proceeds to step S13. If it is not Thai, the character font corresponding to the input character code may be displayed as in the normal process, and this process ends.

  In the next step S13, the character codes of the element characters input in the order of level 2 → level 1 → level 3 → level 4 are acquired.

  In the next step S14, a character font corresponding to the input partial character is acquired. A partial character is constituted by the combination of the element characters acquired in step S13.

  The character code constituting the partial character is a combination of the character codes of the element characters from the input of the character code of the level 2 element character to the input of the character code of the next level 2 element character. That is, when the character code “X” of the element character of level 2 is input and the character code of the element character to be input next is also level 2, the character code of the partial character is “X”. In addition, the character code “X” of the level 2 element character is input, and the character code “Y” of the level 1 element character and the level 3 element character When the character code “Z” is input, the character code of the partial character is “X, Y, Z”. The same applies to the case where the character code of the level 4 element character is input.

  The character font is acquired by referring to a character font table created in advance. In the character font table, combinations that can be taken as partial characters from level 1 to level 4 and character fonts corresponding to the character codes of the combinations are defined in association with each other.

  For example, when a partial character is composed of the character codes of level 2, level 1 and level 3 element characters, the character code of the level 1 element character entered for the level 2 element character code is The character code of the level 3 element character detected for the combination of the character codes of the level 2 and level 1 element characters is detected from the character font table, and the level 2, level 1 and level 3 are detected. The character font corresponding to the combination of the character codes of the element characters is extracted from the character font table.

  In the next step S15, the character font extracted in step S14 is displayed on the screen of the display unit 15.

  In the next step S16, it is determined whether or not the display process has been completed for all input character codes. This determination is made based on whether a code indicating the end of the file has been acquired. When the process is completed for all input characters, the process ends. When there is an unprocessed input character, the process returns to step S13 to continue the process.

  As described above, in the display device and the character display method according to the present embodiment, character fonts for characters composed of one or a plurality of character codes are defined and stored in advance as a character font table in the storage unit. The display device acquires partial characters constituting the input character, and further acquires elemental characters constituting the partial character. A character font corresponding to a partial character that is a combination of element characters is extracted from the character font table and displayed on the screen. As a result, even in a display device that is not equipped with software that superimposes a plurality of character fonts for a plurality of character codes into a single character font, it is possible to correctly display Thai.

  In addition, since characters composed of a plurality of character codes are defined in advance, it is possible to prevent erroneous characters from being displayed.

  In the above-described embodiment, description has been made using Thai as an example of a language that is a character display target. However, the character font is not limited to Thai and includes a plurality of types of character codes such as Vietnamese and Arabic. Any language can be applied.

10 ... display device,
11 ... External device connection part,
12 ... control unit,
13 ... storage part,
14 ... operation part,
15 ... display part,
16 ... character code input part,
17 ... Thai character determination unit,
18 ... Thai character analysis part,
19: Corresponding font extraction unit,
20: Font output section.

Claims (9)

Display means;
Storage means for storing a character font table in which character fonts corresponding to one or more character codes constituting a character are defined;
Control means for acquiring partial characters constituting the character;
Have
The control means obtains an element character constituting the partial character, extracts a character font corresponding to the partial character that is a combination of the element characters from a character font table stored in the storage means, and A display device that outputs to a screen.   The partial character has one main element character and any number of sub-element characters from 0 to 3, and when an area from level 1 to level 4 is allocated in the vertical direction of the partial character 2. The display device according to claim 1, wherein the main element character is arranged in an area of level 2, and the sub-element character is arranged in at least one of level 1, level 3, and level 4. . The element character includes identification information indicating in which region from level 1 to level 4 a character is arranged,
The control means extracts a corresponding character font from the character font table based on a character code of the element character input in the order of level 2, level 1, level 3, and level 4. Item 3. The display device according to Item 2.   The control means outputs one or more character codes from a character code of a character arranged in the level 2 area to a character code of a character arranged in the level 2 area inputted next. The display device according to claim 3, wherein a character code of one partial character is used.   The language of the character is Thai, the character code of the main element character constituting the partial character includes a character code corresponding to a consonant, and the character code of the sub-element character corresponds to at least a vowel The display device according to claim 4, wherein a character code corresponding to a character code or a tone is included. Obtaining a character;
Obtaining partial characters constituting the character;
Obtaining an element character constituting the partial character;
Extracting a character font corresponding to the partial character, which is a combination of the element characters, from a character font table in which a character font corresponding to one or more character codes constituting the character is defined;
Outputting the extracted character font to a screen of a display means;
A character display method characterized by comprising:   The partial character has one main element character and any number of sub-element characters from 0 to 3, and when an area from level 1 to level 4 is allocated in the vertical direction of the partial character 7. The character display according to claim 6, wherein the main element character is arranged in an area of level 2, and the sub-element character is arranged in at least one of an area of level 1, level 3, or level 4. Method. The element character includes identification information indicating in which region from level 1 to level 4 a character is arranged,
The step of acquiring the partial character includes the step of acquiring the character code of the element character input in the order of level 2, level 1, level 3, and level 4,
One or a plurality of character codes from a character code of a character arranged in the level 2 area to a character code of a character arranged in the level 2 area to be input next are input to one partial character A step of character encoding;
The character display method according to claim 7, further comprising:   The language of the character is Thai, the character code of the main element character constituting the partial character includes a character code corresponding to a consonant, and the character code of the sub-element character corresponds to at least a vowel The character display method according to claim 8, wherein a character code corresponding to a character code or a tone is included.

Images