JP2758875B2 - Registered character display system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a registered character display system, and more particularly to a registered character display system for displaying registered characters at high speed.

[0002]

2. Description of the Related Art A conventional registered character display system displays a character on a display medium by a display device, and cannot generate a character that cannot be generated even if a character stored in advance in the display device is subjected to character processing such as enlargement or reduction. Is used to display.

When characters are displayed on a display medium from a display device, the data of the characters created on the display device include bitmap data, outline data of characters (outline data), and the like. Bitmap data represents an image of a character on a display medium and is easy to create. However, when the character enlargement processing is performed, one dot constituting the character becomes larger in proportion to the enlargement ratio, and the character on the display medium becomes larger. to degrade. Further, even if the display medium or the character output means for the display medium supports high-resolution output, the performance cannot be fully utilized if one dot constituting the character is large. On the other hand, the outline data is the coordinate data constituting the contour line, and therefore the character can be represented on the display medium without deterioration even if the character enlargement processing is performed. However, the outline data is composed of straight line and curve data. , It takes time to create.

When displaying registered characters on a display medium via a display device, a bitmap of the registered characters is created for ease of creation, and is input to the display device, and characters such as enlargement and reduction are input to the input bitmap. There is a method of performing processing to convert and display a desired character image, and a method of converting a bitmap of an input registered character into outline data and then performing character processing such as enlargement and reduction. Enlarge the bitmap data with respect to the input bitmap,
When the reduction processing is performed, the character is degraded. However, in order to prevent the enlargement and reduction processing from being performed, it is necessary to create the same bitmap as the output, and character output means for a display medium corresponding to a plurality of resolutions is required. Since the number of dots required to form a character of an arbitrary fixed size on a display medium at each resolution differs at each resolution, registered characters for each resolution are required. Therefore, in order to display registered characters in order to ensure the quality of output characters, a method of converting input bitmaps into outline data, performing character enlargement processing, and generating character data to be displayed on a display medium is used. I have.

[0005]

The problem of the prior art described above is that, when displaying registered characters on a display medium, the generation of display characters is based on the generation of a character pattern previously stored in a character data storage medium of a display device. It takes more time.

The reason is that characters stored in advance in a character data storage medium of a display device are stored as outlines so as to correspond to various character sizes, but registered characters are input as bitmap data. This is because, in the display, conversion processing from bitmap to outline data is always required so as not to degrade the character quality.

[0007] It is an object of the present invention to provide a registered character display system capable of creating a display character in the same time as a character stored in a character data storage medium of a display device in advance.

[0008]

Means for Solving the Problems Higher-level device (13 in FIG. 1)
From the display unit (1 in FIG. 1) via the input unit (11 in FIG. 1)
Enter the bitmap data of the registered character into. Conversion of registered character bitmap data to character outline (FIG. 1)
Outline data is generated by extracting the outline of the character by using 4). The generated outline data of the registered character is stored in a readable and writable storage medium (9 in FIG. 1) in which the stored contents are not erased even after the power of the display device is turned off. Subsequent display of the registered characters on the display medium (14 in FIG. 1) is performed by character search means (5 in FIG. 1).
Reads the outline data from the storage medium,
The data is passed to character expansion means (6 in FIG. 1) to generate display characters. The character expanding unit passes the generated character to the output unit (12 in FIG. 1) and displays the registered character on the display medium.

The display device can search for outline data of registered characters stored in the storage medium via the storage medium management means 7 (7 in FIG. 1) by the character search means. If the registered character does not exist, the status notification unit (8 in FIG. 1) notifies the host device that the registered character has not been registered.

In the display of registered characters, if outline data is already stored in the display medium, characters can be generated faster than the stored outline data without performing outline conversion.

In the outline data of the registered characters stored in the storage medium, a unique number is designated by a higher-level device so that each registered character can be individually recognized even when a plurality of registered characters are displayed. By executing the display command of, the display can be performed on the display medium. Since the storage contents of the storage medium are not erased even after the power is turned off, the bitmap data of the registered characters input to the display device need not be input again when the display device is restarted.

The character search means is provided via a storage medium management means.
Since the outline data of the registered characters in the storage medium are individually recognized, it is possible to determine the presence or absence of the outline data in the storage medium of the registered characters specified by the host device. If there is no outline data in the storage medium, the information is notified to the host device by the status notifying means, so that the host device can be requested to input the bitmap data of the registered characters to the display device.

The present invention provides a readable / writable storage medium whose storage contents are not erased even after power is turned off, a storage medium management means for managing data stored in this storage medium, and a character for outlining registered characters. In a registered character display system having an outline conversion unit, the outline data of the registered character converted by the character outline conversion unit is stored in the storage medium, and in the subsequent display of the registered character, the generated data of the registered character is displayed on a display device. Character search means for searching for character resources in the display device so that characters can be generated from outline data on the storage medium without re-inputting, and presence / absence of outline data of registered characters in the display device in a host device And a status notifying means for notifying the user.

In the registered character display system of the present invention, a display device for receiving a character display command from a host device has an input unit for receiving the instruction, and a central control unit in the display device comprises:
By processing the instruction and issuing an output command to a display medium at an output unit, characters are displayed on the display medium, and the display device reads in advance storing outline data of characters that can be output on the display medium. It has a character data storage medium as a dedicated storage medium and a readable and writable storage medium whose storage contents are not erased even after the power of the display device is turned off, and the status notifying means in the display device changes the status in the device. The host device can be notified, and the host device can give appropriate instructions and information to the display device via the input unit according to the state of the display device obtained from the state notification means. Has display control means for controlling generation of a character to be output, wherein the display control means analyzes a character display command input through the input unit, and outputs the character. The character search means searches the storage location of the line data, notifies the storage location of the outline data to the character development means, and the character development means reads the character outline data from the notified location, generates a character, and generates the character. The character is passed to the output unit, and the display device can input the bitmap data of the registered character from the host device via the input unit, and the central control unit converts the input bitmap data of the registered character to character outline conversion. The character outline conversion means can generate outline data of the registered character by passing the outline data of the registered character to the storage medium management means, and the outline data of the registered character can be registered by the storage medium management means. Character outline data is stored in the storage medium; Character data can be searched for data stored in the storage medium by obtaining information on the storage location of the registered characters in the storage medium for the registered characters from the storage medium management means. .

According to the registered character display method of the present invention, the display device determines whether the character is displayed on the storage medium or the character data storage medium when displaying the character specified by the host device via the input unit. When the character search means performs a search and the character search means determines that the outline data of the character to be displayed is data stored in the character data storage medium, the display control means sends the character data to the character development means. Notifying the storage location of the character outline data in the storage medium, the character expanding means acquires character outline data from the character data storage medium, and the character expanding means generates an output character from the obtained character outline data, and To the character data, and the character search means converts the outline data of the character to be displayed to the character data. If it is determined that the character is not stored in the storage medium, the displayed character is a registered character input from the higher-level device. Therefore, the character search is performed to determine whether corresponding character outline data exists in the storage medium. When the character search means determines that the outline data of the character displayed by the character search means exists in the storage medium, the character search means notifies the storage location on the storage medium to the character expansion means, The character expanding unit reads character outline data from the storage medium, the character expanding unit generates an output character from the obtained character outline data, passes the generated character data to the output unit, and displays the character by the character search unit. Outline data of a character to be stored is stored in both the storage medium and the character data storage medium. If it is determined that there is no character data, the character search means notifies the display control means that the outline data of the character does not exist in the display device. Via the notifying means, notifies that the registered character bitmap data to be displayed does not exist in the display device, the higher-level device inputs the registered character bitmap data to the display device, and the display control means Passes the input registered character bitmap data to character outline conversion means, the character outline conversion means generates registered character outline data, and the character outline conversion means transmits the converted outline data to the storage medium management means. The character outline conversion means stores the outline data of the registered character. The storage medium management means manages a storage location on the storage medium, and the storage medium management means provides the information to the character search means, notifies the storage location to the character development means, and outputs a registered character. It is characterized by generating characters.

[0016]

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

FIG. 1 is a block diagram of the first embodiment of the present invention, and FIG. 2 is a flowchart showing the operation of the embodiment of FIG.

Referring to FIG. 1, the display device 1 that receives a character display command from the host device 13 has an input unit 11 that receives the instruction. The central control unit 2 in the display device 1 processes the instruction and issues an output command to the display medium 14 to the output unit 12 so that characters are displayed on the display medium 14. The display device 1 has a character data storage medium 10 which is a read-only storage medium for storing outline data of characters which can be output to the display medium 14 in advance, and is capable of reading and writing so that the stored contents are not erased even after the display device 1 is turned off. Storage medium 9. Also, the status notifying means 8 in the display device 1 can notify the higher-level device 13 of the status in the device, and the higher-level device 13 sends the input unit 11 to the display device 1 based on the status of the display device 1 obtained from the status notifying means 8. Appropriate instructions and information can be given via.

The central control unit 2 has a display control unit 3 for controlling generation of a character to be output. The display control unit 3 analyzes a character display command input via the input unit 11 and outlines the character. The character search means 5 searches the storage location of the data, and notifies the character development means 6 of the storage location of the outline data. The character development means 6 reads the character outline data from the notified location, generates a character, and generates a character. The output character is passed to the output unit 12.

The display device 1 is capable of inputting bitmap data of registered characters from the host device 13 via an input unit, and the central control unit 2 passes the input registered character bitmap data to the character outline conversion means 4. Thus, the character outline conversion means 4 can generate outline data of the registered character. The character outline converting means 4 converts the generated outline data of the registered character into a storage medium managing means 7.
The outline data of the registered character is stored in the storage medium 9 by the storage medium management means 7. Character search means 5
Obtains information on the storage location of the registered characters in the storage medium 9 for the registered characters from the storage medium
Character data can be searched for the data stored therein.

Next, the operation of the registered character display system of FIG. 1 will be described in more detail with reference to FIG.

The display device 1 is connected to the input unit 11 from the host device 13.
Is displayed on the storage medium 9 or the character data storage medium 10, the character search means 5 performs a search (step 20).
1).

When the character search means 5 determines that the outline data of the character to be displayed is the data stored in the character data storage medium 10, the display control means 3 sends the character development means 6 The storage location of the character outline data is notified, and the character expansion unit 6 acquires the character outline data from the character data storage medium 10 (step 202). The character developing means 6 generates an output character from the obtained character outline data, and transfers the generated character to the output unit 12 (step 203).

If the character search means 5 determines that the outline data of the character to be displayed is a character not stored in the character data storage medium 10, the display character is a registered character input from the host device 13. The character search means 5 determines whether the corresponding character outline data exists in the storage medium 9 (step 21).
1). If it is determined that the outline data of the character displayed by the character search means 5 exists in the storage medium 9, the character search means 5 notifies the storage location on the storage medium 9 to the character development means 6, and the character development means 6 The character outline data is read from the storage medium 9 (step 212). The character developing means 6 generates an output character from the obtained character outline data _, and passes the generated character data to the output unit 12 (step 203).

If the character search means 5 determines that the outline data of the character to be displayed is not stored in either the storage medium 9 or the character data storage medium 10, the character search means 5 determines that the outline data of the character is not stored. The display control means 3 notifies the display control means 3 that the character does not exist in the display device 1 (step 221). Is not present in the display device 1 (step 222). The host device 13 inputs the registered character bitmap data to the display device 1 (step 223), and the display control means 3 passes the input registered character bitmap data to the character outline conversion means 4, and the character outline conversion means 4 Generates outline data of registered characters (step 224). The character outline conversion means 4 stores the converted outline data in the storage medium 9 via the storage medium management means 7 (step 225). The character outline conversion means 4 manages the storage location of the outline data of the registered character on the storage medium 9 by the storage medium management means 7, and the storage medium management means 7 provides the information to the character search means 5 and stores the information. The location is notified to the character expanding means 6, and an output character of the registered character is generated (step 203).

[0026]

An advantage of the present invention is that a character can be generated in the same time between a registered character and a character stored in advance in a storage medium.

The reason is that once the registered character is converted into outline data, since the outline data is stored in the storage medium in the display device, there is no need to convert the registered character into outline data for displaying the registered character thereafter. Because.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the embodiment of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Central control part 3 Display control means 4 Character outline conversion means 5 Character search means 6 Character development means 7 Storage medium management means 8 Status notification means 9 Storage medium 10 Character data storage medium 11 Input part 12 Output part 13 Host device 14 Display medium

Claims (3)

(57) [Claims] 1. A readable and writable storage medium whose storage contents are not erased even after power is turned off, a storage medium management means for managing data stored in the storage medium, and a character outline conversion for outlining registered characters. In the registered character display system having the means, the outline data of the registered character converted by the character outline converting means is stored in the storage medium, and the display data of the registered character is input again to the display device in the display of the registered character thereafter. Character search means for searching for character resources in the display device so that characters can be generated from outline data on the storage medium without having to perform the processing, and notifies a host device of the presence or absence of outline data of registered characters in the display device. A registered character display system, comprising: 2. A display device that receives a character display command from a host device has an input unit that receives the command, a central control unit in the display device processes the command, and outputs the command to an output unit. By issuing an output command, characters are displayed on the display medium, and the display device is a character data storage medium of a read-only storage medium that previously stores outline data of characters that can be output on the display medium, and the display device And a readable and writable storage medium whose storage contents are not erased even after the power is turned off. The state notifying means in the display device can notify the state in the device to the host device, and the host device can Appropriate instructions and information can be given to the display device via the input unit according to the state of the display device obtained from the state notification means. Display control means for controlling the generation of characters, the display control means analyzes a character display command input via the input unit, and a character search means searches a storage location of outline data of the character, Notifying the expansion unit of the storage location of the outline data, the character expansion unit reads the character outline data from the notified location, generates a character, and passes the generated character to the output unit. Registered character bitmap data can be input from the device via an input unit, and the central control unit passes the input registered character bitmap data to character outline conversion means to convert the registered character outline data to the character outline. The conversion means can generate the outline data of the generated registered character. Pass to 憶媒 body management means,
The outline data of the registered character is stored in the storage medium by the storage medium management unit, and the character search unit obtains information on the storage location of the registered character in the storage medium of the registered character from the storage medium management unit, A registered character display system, wherein character data can be searched for data stored in the storage medium. 3. A display device according to claim 1, wherein a character search means searches for a character indicated by a higher-level device via an input unit, to determine whether the character is stored in a storage medium or a character data storage medium. If the character search means determines that the outline data of the character to be displayed is data stored in the character data storage medium, the display control means transmits the character outline data of the character data storage medium to the character development means. Notifying the storage location, the character expanding means obtains character outline data from the character data storage medium, the character expanding means generates an output character from the obtained character outline data, generates the output character, and passes the character data to the output unit. The outline data of the character to be displayed is not stored in the character data storage medium by the character search means. If it is determined that the character is a registered character, the displayed character is a registered character input from the higher-level device, so that the character search unit determines whether character outline data corresponding to the registered character exists in the storage medium, If it is determined that the outline data of the character displayed by the character search means exists in the storage medium, the character search means notifies the character development means of a storage location on the storage medium, and the character development means The character outline data is read from the medium, the character expansion unit generates an output character from the acquired character outline data, and passes the generated character data to the output unit. When it is determined that the data is not stored in any of the storage medium and the character data storage medium, The character search means notifies the display control means that the outline data of the character does not exist in the display device, and the display control means having received the notification displays the information on the higher-level device via the status notification means. Notifying that the bitmap data of the registered character does not exist in the display device, the higher-level device inputs the bitmap data of the registered character to the display device, and the display control means performs the bitmap of the input registered character. The data is passed to character outline conversion means, the character outline conversion means generates outline data of the registered character, and the character outline conversion means stores the converted outline data in the storage medium via the storage medium management means. The character outline conversion means stores outline data of a registered character on the storage medium. The storage medium management unit manages a location, and the storage medium management unit provides the information to the character search unit, notifies the storage location to the character expansion unit, and generates an output character of a registered character. Characteristic registered character display method.